WO2018147493A1

WO2018147493A1 - Breaker, long bolt loosening monitoring system and long bolt loosening monitoring method

Info

Publication number: WO2018147493A1
Application number: PCT/KR2017/001778
Authority: WO
Inventors: 주진무; 한순형; 이원해
Original assignee: 대모 엔지니어링 주식회사
Priority date: 2017-02-09
Filing date: 2017-02-17
Publication date: 2018-08-16

Abstract

A breaker according to an embodiment of the present invention can comprise: a cylinder for accommodating a piston such that the piston reciprocates; a head cap disposed on the cylinder; a front head disposed below the cylinder and having a chisel which is being hit by the reciprocating piston; a long bolt mutually coupling the cylinder, the head cap and the front head; a nut which is screw coupled to the long bolt and fixes the long bolt; and an optical sensor for detecting the position information of the nut by means of light such that a change in the position of the nut, which occurs due to loosening of the nut on the long bolt, is detected.

Description

Breaker, long bolt loosening monitoring system and long bolt loosening monitoring method

The present invention relates to a breaker, a long bolt loosening monitoring system and a long bolt loosening monitoring method, more specifically, a breaker, a long bolt loosening that can detect the loosening of the long bolt using an optical sensor for detecting the position information of the nut A monitoring system and a method for monitoring long bolt loosening.

A breaker is a device used to crush a rock by hitting a chisel in contact with an object through a reciprocating motion of a piston, and a hydraulic attachment form that is mounted on a heavy equipment vehicle such as an excavator is mainly used in a large construction site. .

Rock crushing work is one of the important factors due to the construction period, etc. the speed of work. Therefore, the conventional breaker has a long stroke mode that increases the stroke distance of the piston so that the impact force is strengthened for hard rock crushing according to the operator's operation, and the shot speed is improved even when sacrificing some impact force for soft rock crushing. It is configured to change the short stroke mode.

Meanwhile, as the breaker strikes the rock, the long bolt may be released by the impact.

If the long bolt is loosened, the binding force is weakened, and if the breaker keeps hitting the rock in this state, it may cause breakage of the breaker.

In order to solve this problem, Korean Patent Registration No. 10-1518811 (announced May 12, 2015), the first sensor is mounted on the washer disposed under the nucleus nut.

However, in order to mount the first detection sensor on the washer, a separate detection groove for mounting the first detection sensor on the washer, which is a consumable, must be formed separately, and the first detection sensor is damaged due to a foreign substance such as dust in the detection groove. There is.

The present invention is to solve the above problems, by detecting the loosening of the nut by detecting the loosening of the nut, the breaker to inform the user of the information according to a predetermined condition when the nut loosening or to control the movement of the piston To provide a long bolt loosening monitoring system and a long bolt loosening monitoring method.

The problem to be solved by the present invention is not limited to the above-described problem, the objects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. .

According to an aspect of the invention, the cylinder for receiving the piston to reciprocate the piston; A head cap disposed above the cylinder; A front head disposed below the cylinder and having a chisel hit by a reciprocating piston; A long bolt coupling the cylinder, the head cap and the front head to each other; A nut coupled to the long bolt to fix the long bolt; And an optical sensor for detecting position information of the nut by using light to detect a change in position of the nut generated as the nut on the long bolt is loosened.

According to an aspect of the present invention, a front head having a cylinder for accommodating the piston so that the piston reciprocates, a head cap disposed above the cylinder, a chisel disposed under the cylinder and hit by the reciprocating piston, A long bolt loosening monitoring system for a breaker having a long bolt for coupling the cylinder and the head cap and the front head to each other and a nut for screwing the long bolt to fix the long bolt. An optical sensor for detecting positional information of the nut using light to detect a change in position of the nut generated as the nut is loosened; And a controller configured to determine that the nut is loose and perform a warning operation when the predetermined condition is satisfied based on the detected position information. The long bolt loosening monitoring system may be provided.

According to one aspect of the invention, the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder; Detecting, by an optical sensor, position information of the nut using light to detect a change in position of the nut caused by loosening of the nut on the long bolt; When the controller satisfies a predetermined condition based on the detected position information, determining that the nut is loosened and performing a warning operation may be provided.

Means for solving the problems of the present invention are not limited to the above-described solutions, and the solutions not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings. Could be.

According to the breaker, long bolt loosening monitoring system and long bolt loosening monitoring method according to an aspect of the present invention, it is easy to detect the loosening of the nut by detecting the loosening of the nut, when the long bolt loosening according to a predetermined condition By warning the user or controlling the movement of the piston, breaker breakage can be prevented.

The effects of the present invention are not limited to the above-described effects, and effects that are not mentioned will be clearly understood by those skilled in the art from the present specification and the accompanying drawings.

1 is a schematic diagram of construction equipment including a breaker according to an embodiment of the present invention.

2 is a schematic diagram of a breaker according to an embodiment of the present invention.

3 is an exploded perspective view of a breaker according to an embodiment of the present invention.

4 is a circuit diagram of a breaker according to an embodiment of the present invention.

5 and 6 are schematic views showing the installation position of the optical sensor according to an embodiment of the present invention.

7 is a schematic diagram showing an installation position of an optical sensor according to another embodiment of the present invention.

8 is a schematic diagram showing an installation position of an optical sensor according to another embodiment of the present invention.

9 is a view of the location information characteristics detected by the optical sensor according to an embodiment of the present invention.

10 is a view of the vibration information characteristics sensed by the vibration sensor according to an embodiment of the present invention.

11 is a schematic structural diagram of a long bolt loosening monitoring system according to an embodiment of the present invention.

12 is a cross-sectional view of a breaker according to another embodiment of the present invention.

13 is a perspective view of a nut according to another embodiment of the present invention.

14 is a perspective view of a long bolt according to another embodiment of the present invention.

15 is a cross-sectional view of the long bolt and the nut is coupled according to another embodiment of the present invention.

16 is a diagram illustrating a process of detecting pressure information by a pressure sensor according to another exemplary embodiment of the present invention.

17 is a cross-sectional view of the long bolt and the nut is coupled according to another embodiment of the present invention.

18 is a view of the characteristics of the pressure of the pressure information detected by the pressure sensor in accordance with another embodiment of the present invention.

19 is a view of the characteristics of the pressure of the pressure information detected by the pressure sensor according to another embodiment of the present invention.

20 is a schematic configuration diagram of a long bolt loosening monitoring system according to another embodiment of the present invention.

21 is a cross-sectional view of a breaker according to another embodiment of the present invention.

22 is a perspective view of a washer according to another embodiment of the present invention.

Figure 23 is a perspective view of a long bolt according to another embodiment of the present invention.

24 is a cross-sectional view of a breaker according to another embodiment of the present invention.

25 is a cross-sectional view of a breaker according to another embodiment of the present invention.

FIG. 26 is a rear perspective view of the washer of FIG. 25; FIG.

FIG. 27 is a perspective view of the headcap of FIG. 25.

FIG. 28 is a perspective view of the long bolt of FIG. 25.

29 is a cross-sectional view of a breaker according to another embodiment of the present invention.

30 is a perspective view of the head cap of FIG. 29.

31 is a view of damage information detected by a detection sensor according to an embodiment of the present invention.

32 is a schematic structural diagram of a long bolt breakage monitoring system according to another embodiment of the present invention.

Hereinafter, with reference to the drawings will be described in detail a specific embodiment of the present invention. However, the spirit of the present invention is not limited to the embodiments presented, and those skilled in the art who understand the spirit of the present invention may deteriorate other inventions or the present invention by adding, modifying, or deleting other elements within the scope of the same idea. Other embodiments that fall within the scope of the inventive concept may be readily proposed, but they will also be included within the scope of the inventive concept.

In addition, the components with the same functions within the scope of the same idea shown in the drawings of each embodiment will be described using the same reference numerals.

In the present specification, when it is determined that a detailed description of a known configuration or function related to the present invention may obscure the gist of the present invention, a detailed description thereof will be omitted.

According to an aspect of the present invention, a front head having a cylinder for accommodating the piston so that the piston reciprocates, a head cap disposed above the cylinder, and a chisel disposed under the cylinder and striking the reciprocating piston. A long bolt for coupling the cylinder, the head cap and the front head to each other, a nut coupled to the long bolt to fix the long bolt, and a position change of the nut generated as the nut on the long bolt is released A breaker including an optical sensor for detecting position information of the nut using light to detect the light may be provided.

In addition, the optical sensor is installed in the head cap, it can detect the position information for the side of the nut.

In addition, the head cap forms a recessed space recessed from an outer surface to cover at least a portion of the side portion of the nut and a receiving space communicating with the side of the nut disposed in the recessed space, wherein the optical sensor is configured to receive the accommodating space. Installed in the space can detect the position information for the side of the nut.

In addition, the nut forms an accommodation space, and the optical sensor may be disposed on the accommodation space to be protected from an external environment.

In addition, the breaker may further include a cover part covering the accommodation space to protect the optical sensor disposed on the accommodation space from an external environment.

In addition, the optical sensor can detect the position information for the long bolt.

According to another aspect of the present invention, a front head having a cylinder for accommodating the piston so that the piston reciprocates, a head cap disposed above the cylinder, a chisel disposed under the cylinder and hit by the reciprocating piston, A long bolt loosening monitoring system for a breaker having a long bolt for coupling the cylinder and the head cap and the front head to each other and a nut for screwing the long bolt to fix the long bolt. When the nut satisfies a predetermined condition based on an optical sensor for detecting position information of the nut using light to detect a position change of the nut generated as the nut is loosened and the detected position information, the nut is loosened. Long-bolt loosening monitor including a controller which judges to perform a warning action A ring system can be provided.

The predetermined condition is that a difference between the first positional information value, which is the positional information at the time when the nut is installed in the long bolt, and the second positional information value, which is the positional information, at the present time. It may be the above conditions.

In addition, the long bolt loosening monitoring system may further include a vibration sensor for detecting the vibration information of the breaker to detect the vibration amount of the breaker, the optical sensor, the vibration information, the vibration information satisfies a predetermined vibration condition In this case, the location information can be detected.

In addition, the long-bolt loosening monitoring system may further include an output module for outputting an image or audio, the controller may output a warning message through the output module when it is determined that the nut is loosened.

The controller may stop the reciprocating motion of the piston when it is determined that the nut is loosened.

In addition, the breaker is a control valve for connecting the hydraulic source and the rear chamber of the cylinder or discharging the hydraulic oil from the rear chamber of the cylinder for the forward movement of the piston and a shutoff valve for selectively blocking the flow of the hydraulic oil. Further provided with the controller, when it is determined that the nut is loosened, the shutoff valve may control the shutoff valve to block the flow of the working oil.

And-the shutoff valve selectively shuts off the flow of the hydraulic oil directed to the control valve-the controller is configured to shut off the shutoff valve such that the shutoff valve shuts off the flow of the hydraulic oil when it is determined that the nut is loosened. Can be controlled.

According to another aspect of the invention, the step of the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder, the light sensor uses the light to detect the change in position of the nut caused by the loosening of the nut on the long bolt Detecting the position information of the nut, and if the controller satisfies a predetermined condition based on the detected position information, determining that the nut is released and performing a warning operation. Can be.

According to another aspect of the invention, the cylinder for receiving the piston to reciprocate the piston; A head cap disposed above the cylinder; A front head disposed below the cylinder and having a chisel hit by a reciprocating piston; A long bolt coupling the cylinder, the head cap and the front head to each other; A nut coupled to the long bolt to fix the long bolt; A breaker may be provided that includes a pressure sensor for detecting pressure information generated as the nut on the long bolt is loosened.

In addition, the pressure sensor may detect the pressure information generated by deformation of the nut by loosening the nut.

In addition, the nut forms an arrangement space in which the pressure sensor may be disposed, and the pressure sensor may be disposed in the arrangement space to deform the shape by loosening the nut.

The nut has a side portion on which a thread is formed and an upper portion extending obliquely from the side portion, and the arrangement space is formed in the rotational axis direction of the long bolt on the upper portion, and the rotational axis direction of the long bolt. The cross section of the pressure sensor in a horizontal direction perpendicular to the cross section may be a polygon such that the shape is deformed by loosening the nut, and the virtual cross section in the horizontal direction of the layout space may be a polygon to restrain the pressure sensor.

In addition, the long bolt may include a recess formed in the rotation axis direction, the pressure sensor, one end is disposed in the placement space, the other end may be disposed in the recess.

The virtual cross section of the recess in the horizontal direction may be polygonal to restrain the pressure sensor.

In addition, a first center that is a center of the rotation axis direction of the arrangement space may coincide with a second center that is a center of the rotation axis direction of the recess.

In addition, the placement space and the recess may have different virtual cross-sectional areas with respect to the horizontal direction.

The longest distance from the first center to the virtual point on the virtual cross section of the placement space may be greater than or equal to the shortest distance from the second center to the virtual point on the virtual cross section of the recess.

The apparatus may further include a restraining part disposed on the arrangement space to restrain the pressure sensor to the nut.

In addition, the restraint part may be formed to correspond to the polygon of the arrangement space by changing from a liquid state to a solid state.

In addition, the pressure sensor, the one end is in contact with the restraint portion is constrained to the nut, the other end is in contact with the long bolt may be bound to the long bolt.

According to another aspect of the invention, the front having a cylinder for receiving the piston to reciprocate the piston, a head cap disposed on the upper side of the cylinder, a chisel disposed on the lower side of the cylinder hitting the reciprocating piston A long bolt loosening monitoring system of a breaker having a head, a long bolt for coupling the head and the head cap and the front head to each other, and a nut screwed to the long bolt to fix the long bolt. A pressure sensor for detecting pressure information generated as the nut is loosened; And a controller configured to determine that the nut is loose and perform a warning operation when the predetermined condition is satisfied based on the sensed pressure of the pressure information. The long bolt loosening monitoring system may be provided.

The predetermined condition may be a condition in which the pressure of the pressure information is equal to or greater than a predetermined reference pressure.

Further, the predetermined condition is that a difference between the first pressure value, which is the pressure of the pressure information at the time when the nut is installed on the long bolt, and the second pressure value, which is the pressure of the pressure information at the present time, are predetermined criteria. It may be greater than the difference value.

In addition, the vibration sensor for detecting the vibration information of the breaker to detect the vibration amount of the breaker, wherein the predetermined condition, the vibration of the vibration information is more than a predetermined reference vibration, the pressure of the pressure information This may be greater than or equal to a predetermined reference pressure.

The controller may further include an output module configured to output a video or audio signal, and the controller may output a warning message through the output module when it is determined that the nut is loosened.

And-the shutoff valve selectively blocks the flow of the hydraulic oil directed to the control valve-the controller is configured to shut off the shutoff valve such that the shutoff valve shuts off the flow of the hydraulic oil when it is determined that the nut is loosened. Can be controlled.

According to another aspect of the invention, the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder; Detecting, by a pressure sensor, the pressure of the nut generated by the loosening of the nut on the long bolt; When the controller satisfies a predetermined condition based on the sensed pressure information, the nut may be determined to be loosened and a warning operation may be performed. The long bolt loosening monitoring method may be provided.

According to another aspect of the invention, the cylinder for receiving the piston to reciprocate the piston; A head cap disposed above the cylinder; A front head disposed below the cylinder and having a chisel hit by a reciprocating piston; A long bolt coupling the cylinder, the head cap and the front head to each other; A nut coupled to the long bolt to fix the long bolt; And a sensing sensor installed in the long bolt to detect that the long bolt is damaged by an external force, wherein the long bolt forms an accommodation space, and the detection sensor is located in the accommodation space of the long bolt. A breaker may be provided that is inserted and detects breakage of the long bolt.

The long bolt may include a first head portion to which the nut is coupled, a torso portion extending downward from the first head portion in the longitudinal direction, and extending from the first body portion to the longitudinally lower side, and the nut being coupled thereto. A second head portion is provided, and the accommodation space is formed from an end portion of the first head portion to an end portion of the second head portion, and the detection sensor is inserted into the accommodation space, so that the first head portion and the trunk portion are provided. And a breaker for detecting breakage of the second head.

The long bolt may include a first head portion to which the nut is coupled, a torso portion extending downward from the first head portion in the longitudinal direction, and extending from the first body portion to the longitudinally lower side, and the nut being coupled thereto. And a second head portion, wherein the accommodation space is formed from an end portion of the second head portion to the middle of the first head portion, and the detection sensor is inserted into the accommodation space, during the first head portion, the body A breaker may be provided that detects breakage of the portion and the second head.

The long bolt may include a first head portion to which the nut is coupled, a torso portion extending downward from the first head portion in the longitudinal direction, and extending from the first body portion to the longitudinally lower side, and the nut being coupled thereto. A second head is provided, and the accommodation space is formed from the end of the first head to the middle of the first head, and the detection sensor is inserted into the accommodation space to detect breakage of the first head. A breaker may be provided.

In addition, the internal bolt is formed to form an inner space, and further comprising a washer disposed between the nut and the head cap, the first head portion is provided with a first through-hole connecting the outside and the receiving space The washer includes a second through hole connecting the outside and the inner space, the second through hole is disposed to correspond to the first through hole, and the detection sensor comprises the first through hole. And a breaker inserted into the second through hole and detecting breakage of the first head.

In addition, the washer may be provided with a breaker further comprises a first corresponding means for the first through-hole and the second through-hole when the nut is screwed to the long bolt is disposed correspondingly.

In addition, the head cap may be provided with a breaker further comprises a second corresponding means for the first through hole and the second through hole correspondingly arranged when the nut is screwed to the long bolt. .

The long bolt may include a first through hole connecting the outside to the accommodation space, and the head cap may include a third through hole connecting the outside to the first through hole. The hole may be disposed to correspond to the first through hole, and the detection sensor may be inserted into the first through hole and the third through hole to detect breakage of the long bolt.

According to yet another aspect of the present invention, a cylinder for accommodating the piston so that the piston reciprocates, a head cap disposed on the upper side of the cylinder, a chisel disposed on the lower side of the cylinder and hitting the reciprocating piston The long bolt for coupling the front head, the cylinder, the head cap and the front head to each other, the nut bolted to the long bolt to fix the long bolt and the long bolt to detect the damage of the long bolt by an external force A breaker monitoring system for a long bolt of a breaker having a sensor installed on the breaker, the breaker monitoring system comprising: a sensor for sensing breakage information to detect breakage of the long bolt; And a controller configured to determine that the long bolt is broken and to perform a warning operation when a predetermined condition is satisfied based on the damage information detected by the detection sensor. The long bolt damage monitoring system may be provided. .

The predetermined condition may be a long bolt damage monitoring system, wherein the change amount of damage information detected by the detection sensor is a condition that is equal to or greater than a predetermined reference change value.

The vibration sensor may further include a vibration sensor configured to detect vibration information of the breaker to sense the vibration amount of the breaker, wherein the detection sensor may be configured to break the long bolt when the vibration information satisfies a predetermined vibration condition. A long bolt breakage monitoring system for sensing may be provided.

The apparatus may further include an output module configured to output an image or an audio signal, wherein the controller outputs a warning message through the output module when it is determined that the long bolt is damaged. have.

The controller may be provided with a long bolt breakage monitoring system that stops the reciprocating motion of the piston when it is determined that the long bolt is broken.

In addition, the breaker is a control valve for connecting the hydraulic source and the rear chamber of the cylinder or discharging the hydraulic oil from the rear chamber of the cylinder for the forward movement of the piston and a shutoff valve for selectively blocking the flow of the hydraulic oil. Further provided-The controller, when it is determined that the long bolt is damaged may be provided a long bolt breakage monitoring system, the shutoff valve to control the shutoff valve to block the flow of the working oil.

And-the shutoff valve selectively blocks the flow of the hydraulic oil directed to the control valve-the controller is configured to block the flow of the shutoff valve so that the shutoff valve blocks the flow of the hydraulic fluid when the long bolt is determined to be broken A long bolt breakage monitoring system may be provided that controls the valve.

According to another aspect of the invention, the chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder; Detecting breakage of the long bolts; If it satisfies a predetermined condition based on the damage information detected by the detection sensor, determining that the long bolt is broken and performing a warning operation; a long bolt damage monitoring method may be provided. .

1 is a schematic diagram of construction equipment including a breaker according to an embodiment of the present invention, Figure 2 is a schematic diagram of a breaker according to an embodiment of the present invention, Figure 3 is an exploded view of a breaker according to an embodiment of the present invention Perspective view.

4 is a circuit diagram of a breaker according to an embodiment of the present invention. 5 and 6 are schematic views showing the installation position of the optical sensor according to an embodiment of the present invention.

7 is a schematic diagram showing an installation position of an optical sensor according to another embodiment of the present invention, Figure 8 is a schematic diagram showing an installation position of an optical sensor according to another embodiment of the present invention.

9 is a view of the position information characteristics detected by the optical sensor according to an embodiment of the present invention, Figure 10 is a view of the vibration information characteristics detected by the vibration sensor according to an embodiment of the present invention.

12 is a cross-sectional view of a breaker according to another embodiment of the present invention, Figure 13 is a perspective view of a nut according to another embodiment of the present invention, Figure 14 is a perspective view of a long bolt according to another embodiment of the present invention to be.

15 is a cross-sectional view illustrating a state in which a long bolt and a nut are coupled according to another embodiment of the present invention, and FIG. 16 is a view illustrating a process of sensing pressure information by a pressure sensor according to another embodiment of the present invention.

17 is a cross-sectional view of a state in which a long bolt and a nut are coupled according to another embodiment of the present invention, and FIG. 18 is a view of a characteristic of pressure of pressure information detected by a pressure sensor according to another embodiment of the present invention. to be.

19 is a view of the characteristics of the pressure of the pressure information detected by the pressure sensor according to another embodiment of the present invention, Figure 20 is a schematic block diagram of a long bolt loosening monitoring system according to another embodiment of the present invention. .

21 is a cross-sectional view of a breaker according to another embodiment of the present invention, and FIG. 22 is a perspective view of a washer according to another embodiment of the present invention.

Figure 23 is a perspective view of a long bolt according to another embodiment of the present invention, Figure 24 is a cross-sectional view of a breaker according to another embodiment of the present invention.

25 is a cross-sectional view of a breaker according to another embodiment of the present invention, and FIG. 26 is a rear perspective view of the washer of FIG. 25.

FIG. 27 is a perspective view of the head cap of FIG. 25, and FIG. 28 is a perspective view of the long bolt of FIG. 25.

29 is a cross-sectional view of the breaker according to another embodiment of the present invention, and FIG. 30 is a perspective view of the headcap of FIG. 29.

FIG. 31 is a view illustrating damage information detected by a detection sensor according to an embodiment of the present invention, and FIG. 32 is a schematic configuration diagram of a long bolt damage monitoring system according to another embodiment of the present invention.

In the present invention, a sensor 150 capable of detecting loosening and / or breakage of the long bolts to monitor loosening and / or breakage of the long bolt may be one component of the present invention.

For example, the sensor 150 may be an optical sensor, a pressure sensor, or may be a sensor that implements an electrical short.

In the following, the technical spirit of the present invention to which the respective sensors are applied will be clearly and in detail explained.

First, as shown in FIG. 1, as an example, the construction equipment 100 is equipment for performing a hitting operation on an object. Construction equipment 100 for the blow operation is mainly implemented in the form in which the breaker 1000 is mounted as an attachment to a heavy-duty vehicle such as an excavator.

The breaker 1000 is a device that performs an operation of hitting an object.

Of course, the breaker 1000 in the present invention is not limited to the above-described example, it should be understood as a concept encompassing all other types of hitting device that performs the function of hitting the object in addition to the hydraulic breaker.

The breaker 1000 is a heavy-duty vehicle, that is, an attachment type mounted on the carrier 120, but is not necessarily the case, and may be present in an independent form from the carrier 120, such as a form directly handled by an operator.

More detailed description of the breaker 1000 will be described later.

The carrier 120 may be largely divided into a driving body 121 and a rotating body 122.

The traveling body 121 is mainly provided in a crawler type or a wheel type, and in some cases, may be a crane type or a truck type.

The rotating body 122 is mounted on the traveling body 121 to be rotatable about an axis in a direction perpendicular to the ground.

The rotating body 122 is provided with a connecting member 123 such as a boom or an arm. The breaker 1000 may be detachably attached to the end of the connection member 123 in such a manner that the breaker 1000 is directly fastened in an attachment form or fastened through the coupler 140.

The connecting member 123 is mainly two or more members are fastened in a link manner, connected to the cylinder can be bent or stretched by the expansion and contraction of the cylinder, stretching operation and the like. The connection member 123 may position the breaker 1000 attached to the end on the hit by this operation.

In addition, the carrier 120 applies hydraulic pressure to the breaker 1000 so that the mounted breaker 1000 can operate, or supplies hydraulic pressure to each part of the carrier 120 or the coupler 140 including the boom or the arm. The hydraulic source 160 and the hydraulic tank 160a for storing the working oil may be installed.

In addition, a cabin 124 on which the operator boards is provided on the rotating body 122 so that the user can operate the carrier 120 or the breaker 1000 by using a handle, a lever, or a button in the cabin 124. have.

Hereinafter, a breaker 1000 according to an exemplary embodiment of the present invention will be described with reference to FIGS. 2 and 3.

2 and 3, as an example, the breaker 1000 may include a mounting bracket 1200, a main body 1400, and a chisel 1600. The main body 1400 is a site for generating the striking force in the breaker 1000, and has a cylinder 1430 and a piston 1440 accommodated in the cylinder 1430 therein so that the hydraulic pressure of the hydraulic oil applied from the hydraulic source 160 is increased. As a result, the piston 1440 reciprocates to generate a striking force. The chisel 1600 is a portion for directly hitting the hitting object, and the lower side of the main body 1400 (the piston 1440 in the following description) moves forward (extension) so that its upper end hits the lower end of the piston 1440. It defines downward, and is arrange | positioned in the upward direction defining the direction which the piston 1440 reverses (reduces) upward.

The mounting bracket 1200 is coupled to the upper end of the main body 1400, and is configured to connect the carrier 120 and the main body 1400.

The main components of the main body 1400 may be the cylinder 1430 and the piston 1440.

In one example, the piston 1440 is provided in a cylindrical shape, the cylinder 1430 may be provided in a hollow cylindrical shape so that the piston 1440 is inserted to reciprocate.

The inner surface 1435 of the cylinder is provided with various

hydraulic ports

1433, 1434, 1435, and 1436 for supplying hydraulic pressure to the interior of the cylinder 1430 or for discharging the hydraulic pressure from the interior of the cylinder 1430.

The piston 1440 includes at least a small diameter portion 1446, a first large diameter portion 1444 positioned above the small diameter portion 1446, and a second large diameter portion 1442 positioned below the small diameter portion 1446. Can be.

As the hydraulic pressure applied to the inside of the cylinder 1430 through the hydraulic port acts on the step surfaces 1444a and 1442a formed by the first large diameter portion 1444 and the second large diameter portion 1442, the piston 1440 acts as a cylinder. It is possible to reciprocate forward and backward within 1430.

Therefore, by properly designing the stepped

surfaces

1444a and 1442a of the hydraulic port or the piston 1440 formed in the cylinder 1430, it is possible to control not only the simple piston 1440 but also the stroke distance of the piston 1440. have.

The front head 1450 and the head cap 1420 may be connected to the lower and upper ends of the cylinder 1430, respectively.

The front head 1450 is provided with a chisel pin (not shown) on which the chisel 1600 is placed, and the chisel 1600 is hit by the lower end of the piston 1440 when the piston 1440 is advanced by the chisel pin (not shown). Be placed in the proper position.

In addition, the front head 1450 is provided with a dust protector (not shown) for preventing foreign matter from entering the cylinder 1430 when the piston 1440 is reciprocated, or a sound absorbing member (not shown) for reducing the impact sound. Can be installed as

The head cap 1420 has a gas chamber (not shown) therein, and the gas chamber may give an appropriate damping effect to the piston 1440 as its volume is compressed when the piston 1440 is retracted.

In addition, the breaker 1000 may include a long bolt for coupling the cylinder 1430, the front head 1450, and the head cap 1420 to each other.

The cylinder 1430, the front head 1450, and the head cap 1420 have insertion holes into which long bolts can be inserted, and the long bolts are inserted into the insertion holes so that the cylinder 1430, the front head 1450 and the head are inserted. Caps 1420 may be coupled together.

Both ends of the long bolt may be installed a nut for fixing the long bolt to the breaker (1000).

The long bolts and nuts are each threaded, and can be screwed together.

The structure or structure of the breaker 1000 described above is only one embodiment of the breaker 1000 according to the present invention, the breaker 1000 according to the present invention has a similar function even if somewhat different from the above-described configuration or structure It is to be understood that other striking devices are also included.

A circuit diagram of the breaker 1000 according to the embodiment of the present invention will be described with reference to FIG. 4.

As shown in FIG. 4, a piston 1440 is inserted into the cylinder 1430, and a chisel 1600 is disposed below the piston 1440.

The piston 1440 may include the small diameter portion 1446, the first large diameter portion 1444 positioned above the small diameter portion 1446, and the second large diameter portion 1442 positioned below the small diameter portion 1446. have.

The outer diameter of the first large diameter portion 1444 and the second large diameter portion 1442 may be substantially the same as the inner diameter of the cylinder 1430, and thus, the lower side and the second large portion of the cylinder 1430 may be disposed inside the cylinder 1430. The front chamber 1431 may be formed between the necks 1442, and the rear chamber 1432 may be formed between the upper side of the cylinder 1430 and the first large diameter part 1444.

A reverse port 1433 is formed in the front chamber 1431, and the reverse port 1433 may be connected to the hydraulic source 160 through the reverse line 1433a.

Accordingly, hydraulic pressure may be applied to the front chamber 1431 by the hydraulic oil flowing from the hydraulic source 160 through the reverse line 1433a to the reverse port 1433.

The hydraulic pressure applied to the front chamber 1431 may act on the stepped surface 1442a of the second large diameter portion 1442, and a reverse force may be applied to the piston 1440.

A forward port 1434 is formed in the rear chamber 1432, and the forward port 1434 may be connected to the control valve 1460 through the forward line 1434a.

The control valve 1460 may be disposed in either one of the forward position 1460-2 or the reverse position 1460-1, and the forward position 1460-2 may move the forward line 1434a to the hydraulic source 160. ), And the forward line 1434a may be connected to the hydraulic tank 160a in the reverse position 1460-1.

Therefore, when the control valve 1460 is disposed in the forward position 1460-2, the rear chamber 1432 flows into the forward port 1434 from the hydraulic source 160 via the control valve 1460 and the forward line 1434a. Hydraulic pressure may be applied by the working oil to be.

The hydraulic pressure applied to the rear chamber 1432 acts on the stepped surface 1444a of the first large diameter portion 1444, and a forward force is applied to the piston 1440.

In addition, when the control valve 1460 is disposed in the reverse position 1460-1, the rear chamber 1432 is connected to the hydraulic tank 160a via the forward line 1434a and the control valve 1460, and the forward position ( The hydraulic oil introduced into the rear chamber 1432 in 1460-2 is discharged to the hydraulic tank 160a.

In this structure, the stepped surface 1444a of the first large diameter portion 1444 has an area larger than the stepped surface 1442a of the second large diameter portion 1442 so that the control valve 1460 is positioned at the forward position 1460-2. When placed, the forward force may be greater than the backward force so that the piston 1440 may advance.

On the contrary, when the control valve 1460 is disposed in the reverse position 1460-1, the hydraulic pressure applied from the hydraulic source 160 acts only on the step surface 1442a of the second large diameter portion 1442 so that the piston 1440 moves backward. can do.

As a result, the reciprocating motion of the piston 1440 can be implemented as the control valve 1460 is disposed in the forward position 1460-2 or the backward position 1460-1.

In one example, the position control of the control valve 1460 may be hydraulic.

That is, the control valve 1460 may be a hydraulic valve in which the forward position 1460-2 and the reverse position 1460-1 may be selected according to the input hydraulic signal.

Both ends of the control valve 1460 may be provided with a forward action surface 1464 and a reverse action surface 1462 respectively connected to the hydraulic line.

Here, the forward action surface 1464 may be connected to the forward control line 1464a branched into the long stroke line 1435a and the short stroke line 1434a.

Reverse action surface 1462 may be connected to hydraulic source 160 via reverse control line 1462a.

In this structure, the forward acting surface 1464 has an area larger than the backward acting surface 1462, so that when the hydraulic pressure is applied to both acting surfaces, the control valve 1460 may be disposed at the forward position 1460-2. Accordingly, the piston 1440 may move forward.

On the contrary, if the hydraulic pressure applied from the hydraulic source 160 is applied only to the reverse action surface 1462, the control valve 1460 may be disposed from the forward position 1460-2 to the reverse position 1460-1, and thus the piston 1440 may reverse.

The long stroke line 1435a is connected to the long stroke port 1435 formed in the cylinder 1430. The long stroke port 1435 may be formed between the forward port 1434 and the reverse port 1433 of the cylinder 1430 to be connected or disconnected from the front chamber 1431 according to the position of the piston 1440.

Specifically, the long stroke port 1435 has a front chamber 1431 when the piston 1440 is advanced so that the second large diameter portion 1442 is on the long stroke port 1435 or located below the long stroke port 1435. The connection with is cut off.

On the contrary, the long stroke port 1435 is connected to the front chamber 1431 when the piston 1440 is backward and the second large diameter portion 1442 is positioned above the long stroke port 1435.

Therefore, when the long stroke port 1435 is connected with the front chamber 1431, the hydraulic pressure from the hydraulic source 160 is reverse line 1433a, the reverse port 1433, the front chamber 1431, the long stroke port 1435. The control valve 1460 may be disposed at the forward position 1460-2 by being sequentially applied to the forward action surface 1464 through the long stroke line 1435a and the forward control line 1464a.

The short stroke line 1436a may be connected to the short stroke port 1434 formed in the cylinder 1430. The short stroke port 1436 is formed between the forward port 1434 and the reverse port 1433 of the cylinder 1430 to be connected to or disconnected from the front chamber 1431 according to the position of the piston 1440, and the long stroke It may be formed at a position closer to the reverse port 1433 than to the port 1435.

Specifically, the short stroke port 1434 is in contact with the front chamber 1431 when the piston 1440 is advanced so that the second large diameter portion 1442 is on the short stroke port 1434 or located ahead of the short stroke port 1434. The connection is cut off.

On the contrary, the short stroke port 1434 is connected to the front chamber 1431 when the piston 1440 is backward and the second large diameter portion 1442 is located behind the short stroke port 1434.

Here, a shift valve 1470 may be provided on the short stroke line 1436a to control a short circuit of the short stroke line 1436a.

The shift valve 1470 may be selectively disposed at any one of the long stroke position 1470-1 and the short stroke position 1470-2, and the short stroke line 1436a at the long stroke position 1470-1. ) And the short stroke line 1434a is connected at the short stroke position 1470-2.

Accordingly, the long stroke mode and the short stroke mode of the piston 1440 may be determined by the shift valve 1470.

In one example, the shift valve 1470 is disposed in the short stroke position 1470-2 and the second large diameter portion 1442 is located behind the short stroke port 1434 such that the short stroke port 1434 and the front chamber 1431 are positioned. Hydraulic fluid is connected to the hydraulic source 160, the reverse line 1433a, the reverse port 1433, the front chamber 1431, the short stroke port 1434, the shift valve 1470, and the forward action surface 1464. Can be reached sequentially.

With this structure, the piston 1440 may selectively perform reciprocating motion in the long stroke mode and the short stroke mode according to the position of the shift valve 1470.

For example, the shift valve 1470 may automatically switch between the long stroke position 1470-1 and the short stroke position 1470-2 by the controller 180, and the long stroke position may be selected by the user. Switching between 1470-1 and the short stroke position 1470-2 may be performed.

The breaker 1000 may further include a shutoff valve 1480 that selectively blocks the flow of hydraulic oil.

The shutoff valve 1480 may be installed in a line through which the hydraulic oil is moved, and may selectively allow the flow of the hydraulic oil, or block the flow of the hydraulic oil.

In one example, the shutoff valve 1480 may allow the flow of the hydraulic oil in the connecting position (1480-2), and may block the flow of the hydraulic oil in the blocking position (1480-1).

In one example, the shutoff valve 1480 is installed on the forward control line 1464a and moves forward from the long stroke port 1435 to the forward action surface 1464 from the hydraulic oil or the short stroke port 1434 to the forward action surface 1464. Allows the flow of hydraulic fluid to be transported to and may be blocked.

If the shutoff valve 1480 is disposed at the shutoff position 1480-1 to block the flow of the hydraulic oil, no hydraulic pressure is applied to the forward action surface 1464, so that the control valve 1460 is moved backward. Cannot be converted from 1) to the advance position 1460-2.

Accordingly, hydraulic fluid is not supplied from the hydraulic source 160 to the rear chamber 1432 by the control valve 1460 in the reverse position 1460-1, so that the reciprocating motion of the piston 1440 may be stopped.

The installation position of the shutoff valve 1480 is not limited to the above-mentioned position, but may be installed on the reverse line 1433a or may also be installed on the advance line 1434a.

In addition, the shutoff valve 1480 may be installed in a line through which hydraulic oil is discharged from the hydraulic source 160.

In this case, when the shutoff valve 1480 blocks the flow of the hydraulic oil, the hydraulic oil supply from the hydraulic source 160 to the cylinder 1430 may be interrupted.

Hereinafter, the long bolt loosening monitoring technique for detecting that the long bolt 1402 is loosened by the loosening of the nut 1401 using the optical sensor 150 will be described.

The breaker 1000 may be vibrated by the reciprocating motion of the piston 1440 on the cylinder 1430, and the nut 1401 may be loosened on the long bolt 1402 by the vibration.

When the nut 1401 is loosened, the long bolt 1402 does not secure the cylinder 1430, the front head 1450, and the head cap 1420 without being fixed (cylinder 1430, the front head 1450, and the head cap). 1420 may not be coupled to each other.

When the long bolt 1402 is loosened, the cylinder 1430, the front head 1450, and the head cap 1420 may be spaced apart from each other, and may be destroyed by friction or strike by the vibration of the breaker 1000.

Therefore, the optical sensor 150 may be installed in the breaker 1000 in order to detect that the nut 1401 is loosened.

For example, the optical sensor 150 may detect a change in position of the nut 1401 using light.

For example, the optical sensor 150 may be a distance sensor that can detect a change in the position of the nut 1401 using infrared or laser.

The optical sensor 150 may detect position information of the nut 1401 to detect a change in position of the nut 1401.

As shown in FIGS. 3, 5, and 6, as an example, the optical sensor 150 may be installed on the head cap 1420.

Therefore, the optical sensor 150 may detect position information about the nut 1401 installed on the head cap 1420.

For example, a plurality of optical sensors 150 may be installed to detect location information about a plurality of nuts 1401 installed on the head cap 1420.

For example, the optical sensor 150 may detect location information about the side portions 1401-1 of the nut 1401.

That is, the optical sensor 150 may be installed in the breaker 1000 to detect a change in position with respect to the side portions 1401-1 of the nut 1401.

Side portion 1401-1 of nut 1401 may be an outer surface of a threaded portion, and may be a portion that can be gripped by a spanner.

For example, the nut 1401 may be a hexa nut 1401, and the sides 1401-1 of the nut 1401 may form a hexagon.

As shown in FIG. 5, for example, the head cap 1420 may form a recessed space S1 recessed from an outer surface of the head cap 1420 to cover at least a part of the side portions 1401-1 of the nut 1401.

For example, the recessed space S1 may be a space formed by being recessed from an upper surface of the head cap 1420.

The nut 1401 may be screwed on the long bolt 1402 by an external force and disposed on the recessed space S1.

Here, the head cap 1420 may further form a receiving space (S) that communicates with the side portion 1401-1 of the nut 1401 disposed in the recessed space (S1).

For example, the accommodation space S may be a space that penetrates from the side surface of the head cap 1420 toward the depression space S1.

Therefore, the accommodation space S may communicate with the side portions 1401-1 of the nut 1401 disposed on the depression space S1.

Here, as an example, the optical sensor 150 may be installed in the accommodation space (S) to detect the position information on the side (1401-1) of the nut (1401).

In FIG. 5, the accommodation space S is illustrated as a space formed through the side of the head cap 1420 in the direction of the depression space S1, but is not limited thereto, and the accommodation space S may include the depression space ( It may be a groove formed by being recessed from one surface of the head cap 1420 defining S1).

That is, the accommodation space (S) is a space in which the optical sensor 150 can be disposed so that the optical sensor 150 detects the position information on the side (1401-1) of the nut (1401) installed in the accommodation space (S). This can be variously changed from the viewpoint of those skilled in the art.

Hereinafter, another embodiment in which the optical sensor 150 is disposed will be described with reference to FIGS. 7 and 8.

As shown in FIG. 7, the nut 1401 may form an accommodation space S, and the optical sensor 150 may be disposed on the accommodation space S to be protected from an external environment.

For example, the accommodation space S may be a space formed through the side portions 1401-1 of the nut 1401.

The optical sensor 150 may be disposed on the accommodation space S to detect location information of the nut 1401.

For example, as shown in FIG. 7A, the optical sensor 150 may be disposed on the accommodation space S to irradiate light toward a portion of the thread of the long bolt 1402.

That is, the optical sensor 150 may detect location information about the long bolt 1402.

Thus, the distance between the photosensor 150 and a portion of the long bolt 1402 can be measured.

If the nut 1401 is loosened, as shown in FIG. 7B, the optical sensor 150 may irradiate light toward a portion different from a portion of the thread of the long bolt 1402.

That is, as the nut 1401 is loosened, position information measured by the optical sensor 150 may vary.

The change in position information may detect a change in position of the nut 1401, and may further detect that the nut 1401 is loosened.

In addition, as an example, as shown in FIG. 8, the nut 1401 may include a side portion 1401-1 and an upper portion 1401-2 extending at a predetermined angle from the side portion 1401-1. .

Here, the accommodation space (S) may be formed in the upper portion (1401-2) of the nut (1401).

The accommodation space S may be a space formed in the longitudinal direction at the upper portion 1401-2 of the nut 1401.

The optical sensor 150 may be disposed on the accommodation space S to irradiate light to the upper surface of the long bolt 1402.

In the state shown in FIG. 8A (meaning the state in which the nut 1401 is not loosened), when the nut 1401 is loosened and is in the state of FIG. The change in location information can be detected.

The optical sensor 150 may detect a change in the position of the nut 1401 by a change in the position information of the long bolt 1402, and may further sense that the nut 1401 is loosened.

5, 7 and 8, the optical sensor 150 covers the receiving space (S) to cover the optical sensor 150 disposed on the receiving space (S) from the external environment The unit 170 may be installed.

For example, the cover unit 170 may receive at least a portion of the optical sensor 150 and may be connected to the optical sensor 150.

The optical sensor 150 may be connected to the cover unit 170 and may be fixed at a predetermined position of the cover unit 170, and may be fixed without being oscillated by the cover unit 170 on the accommodation space S. .

That is, the cover unit 170 may fix the optical sensor 150 and may be fixed at a predetermined position of the nut 1401, and thus swing the optical sensor 150 at a predetermined position of the accommodation space S. Can be fixed instead.

The cover unit 170 may fix the optical sensor 150 and at the same time cover the accommodation space (S) to protect from the external environment.

Hereinafter, the long bolt loosening monitoring system for monitoring the loosening of the long bolt 1402 using the optical sensor 150 and the controller 180 will be described in more detail.

The long bolt 1402 monitoring system may include an optical sensor 150 and a controller 180.

For example, the controller 180 may determine whether the nut 1401 is loosened by using the position information detected by the optical sensor 150.

For example, when the controller 180 satisfies a predetermined condition based on the position information detected by the optical sensor 150, the controller 180 may determine that the nut 1401 is loosened and determine that the nut 1401 is loosened. In this case, a predetermined warning operation may be performed.

For example, the controller 180 is an electronic circuit that processes and operates various electronic signals. The controller 180 receives position information or a signal from the optical sensor 150, calculates and processes information / data, and breaks the electronic signal into a breaker. 1000 and other configurations of construction equipment.

The controller 180 is typically located in the carrier, but may also be located in the breaker 1000.

In addition, the controller 180 does not necessarily need to be implemented as a single object.

In some cases, the controller 180 may be implemented as a plurality of controllers 180 that can communicate with each other.

For example, the controller 180 may be distributedly disposed such that a part thereof is installed at the breaker 1000 side and another part is installed at a carrier, and wireless / wired communication is performed between the distributed controller 180. You can do that by collaborating.

For example, when a plurality of controllers 180 are distributed, some of them simply transmit signals or information to a slave type, and others receive various signals or information to a master type to process / operate and command / It may also take the form of performing control.

The predetermined condition may be a condition for determining whether the nut 1401 is loosened.

For example, the controller 180 may determine that the nut 1401 is released when the data calculated / converted based on the position information or the position information detected from the optical sensor 150 satisfies a predetermined condition. If the predetermined condition is not satisfied, it may be determined that the nut 1401 is not loosened.

The predetermined condition may be set by the user, and the position information obtained from the light sensor 150 in a normal state where the nut 1401 is not loosened and / or from the light sensor 150 in a state where the nut 1401 is loosened. It may be set based on the acquired location information.

In addition, the long-bolt loosening monitoring system may further include an output module 190 for outputting a video or audio.

The output module 190 may be implemented as, for example, an image output module 190 that mainly outputs an image or an audio output module 190 that outputs an audio.

Of course, in addition to the two, various output devices for transmitting information to the user may be adopted as the output module 190.

The output module 190 may directly output an image or an audio to a user, and may be configured to include a USB port for transmitting an image / audio signal to another device that directly outputs an image or an audio to a user.

The output module 190 may be a component capable of outputting an image or audio to output a warning message for occurrence of loosening of the long bolt 1402.

For example, the output module 190 may be installed in the breaker 1000 or may be installed in the carrier.

As an example, the controller 180 may control the output module 190 to output a warning message about occurrence of loosening of the long bolt 1402 to the user through the output module 190.

The controller 180 and the output module 190 may enable wired communication or wireless communication.

As shown in FIG. 6, as an example, the optical sensor 150 detects position information of the nut 1401 based on the amount of reflected light reflected by the light emitter and reflected by the nut 1401. can do.

FIG. 6A is a view in which the nut 1401 is not loosened, and FIG. 6B is a view in which the nut 1401 is loosened.

The amount of reflected light detected by the light receiving unit of the optical sensor 150 in the state shown in FIG. 6 (a) may be a first light receiving value L1, and the amount of the reflected light of the optical sensor 150 in the state shown in FIG. The amount of reflected light detected by the light receiving unit may be a second light receiving value L2 which is different from the first light receiving value L1.

For example, the second light reception value L2 may be smaller than the first light reception value L1.

Here, the predetermined condition may be a condition in which the second light reception value L2 is equal to or less than a predetermined reference light value, and the controller 180 may determine that the nut 1401 is loose when the predetermined condition is satisfied.

In the above-described embodiment, the second light reception value L2 is described as being smaller than the first light reception value L1, but the second light reception value L2 may be larger than the first light reception value L1.

However, for convenience of description, it will be assumed that the second light reception value L2 is smaller than the first light reception value L1.

As shown in FIG. 9, the predetermined condition is the first position information value and the present position information, which is the position information at the time when the nut 1401 is installed in the long bolt 1402 (meaning that the nut 1401 is not loosened). The difference between the second location information value, which is the location information at the time point, may be a condition equal to or greater than a predetermined reference information value.

The first location information value and the second location information value may be data calculated / processed by the controller 180 based on location information or data related to location information detected by the optical sensor 150.

For example, the first location information value may be location information detected by the optical sensor 150 when the nut 1401 is not loosened, and the second location information value is detected by the optical sensor 150 at the present time. It may mean location information.

For example, the first location information value may be a first light reception value L1, and the second location information value may be a second light reception value L2.

The controller 180 may determine that the nut 1401 is loose when the difference ΔL1 between the first position information value and the second position information value is equal to or greater than a predetermined reference information value.

The predetermined reference information value may be set by the user, and the position information obtained from the light sensor 150 in a normal state where the nut 1401 is not loosened and / or the light sensor 150 in a state where the nut 1401 is loosened. It may be set based on the location information obtained from.

In addition, the controller 180 may determine whether the nut 1401 is loosened only with the second position information value.

For example, the controller 180 may determine that the nut 1401 is loose when the second position information value is equal to or less than a predetermined reference information value.

The predetermined condition is not limited to the above-described example, and may correspond to the predetermined condition as long as it is determined that the nut 1401 is loosened using the position information detected by the optical sensor 150.

The long bolt loosening monitoring system may further include a vibration sensor 200 for detecting vibration information of the breaker 1000 to detect the vibration amount of the breaker 1000.

The vibration sensor 200 may be installed in the breaker 1000. For example, the vibration sensor 200 may be installed in the head cap 1420.

The vibration sensor 200 may detect vibration information regarding the vibration of the breaker 1000 generated as the reciprocating motion of the piston 1440 and / or the chisel 1600 strikes the object.

When the long bolt 1402 is loosened, the close coupling between the cylinder 1430 and the front head 1450 and the head cap 1420 may be loose, and vibration may be amplified than when the long bolt 1402 is not loosened.

Here, the controller 180 may control the optical sensor 150 to detect the location information when the vibration information detected from the vibration sensor 200 satisfies a predetermined vibration condition.

For example, as shown in FIG. 10, the vibration information may mean a vibration amount V1, and the predetermined vibration condition is that the vibration amount V1 detected from the vibration sensor 200 is a predetermined vibration reference V2. ) May be more than a condition.

When the vibration information satisfies a predetermined vibration condition, the controller 180 may determine that non-ideal vibration has occurred, and detect the location information by controlling the optical sensor 150.

That is, the controller 180 may control the optical sensor 150 to continuously detect the position information from the time point when the nut 1401 is installed in the long bolt 1402, but in order to reduce power consumption, non-ideal vibration is generated. The optical sensor 150 may be controlled to detect location information only.

Therefore, the controller 180 controls the light sensor 150 to detect the position information at the time when the nut 1401 is installed in the long bolt 1402 (meaning the state in which the nut 1401 is not loosened), and thereafter, When the power of the optical sensor 150 is turned off and it is determined that the non-ideal vibration is generated, the power of the optical sensor 150 may be turned on again to detect the location information to determine whether the nut 1401 is loosened. .

Here, when the controller 180 determines that the nut 1401 is loose, the controller 180 may output a warning message to the user through the output module 190.

In addition, as an example, the controller 180 may stop the reciprocating motion of the piston 1440 when it is determined that the nut 1401 is loosened.

For example, when the controller 180 determines that the nut 1401 is loosened, the controller 180 may control the shutoff valve 1480 to block the flow of the working oil.

For example, when the controller 180 does not control the shutoff valve 1480, the shutoff valve 1480 is in a connection position 1480-2, and when the controller 180 controls the shutoff valve 1480. The shutoff valve 1480 may be changed from the connecting position 1480-2 to the blocking position 1480-1.

That is, the controller 180 may control the shutoff valve 1480 to be changed from the connection position 1480-2 to the shutoff position 1480-1, and as a result, the shutoff valve 1480 controls the flow of hydraulic oil. You can block.

As described above, when the shutoff valve 1480 is converted from the coupling position 1480-2 to the shutoff position 1480-1 by the control of the controller 180, the control valve 1460 is the reverse position 1460-. It is continuously maintained at 1), and as a result, the hydraulic oil of the hydraulic source 160 cannot flow into the rear chamber 1432, so that the reciprocating motion of the piston 1440 may not be implemented.

Also, as an example, the controller 180 controls the hydraulic pressure source 160 so that the hydraulic pressure source 160 supplies hydraulic oil to the breaker 1000, and the hydraulic pressure source 160 actuates the breaker 1000. It can be controlled to off state without supplying.

That is, when the controller 180 determines that the scratch has occurred, the controller 180 may control the hydraulic source 160 to prevent the hydraulic oil from being supplied to the breaker 1000.

For example, when the controller 180 determines that the nut 1401 is loose, the controller 180 may control the shift valve 1470 to control the reciprocating motion of the piston 1440.

For example, the controller 180 may control the piston 1440 to be changed to the short stroke state by controlling the shift valve 1470 when the piston 1440 determines that the nut 1401 is loosened in the long stroke state. If the piston 1440 determines that the nut 1401 is loose in the short stroke state, the piston 1440 may be stopped by controlling the shutoff valve 1480.

The controller 180 may sequentially control the shift valve 1470 and the shutoff valve 1480, so that when the piston 1440 is a long stroke, the controller 180 may sequentially change to a short stroke and stop again at the short stroke.

The user may recognize that the nut 1401 is loosened by changing the reciprocating state of the piston 1440 by the control of the controller 180.

For example, the warning operation of the controller 180 may mean an operation of outputting a warning message to the user through the output module 190 and / or changing the reciprocating motion state of the piston 1440.

Hereinafter, the method for monitoring long bolt loosening will be described.

In the long bolt loosening monitoring method, the chisel 1600 hits an object according to the reciprocating motion of the piston 1440 in the cylinder 1430 (S10), and the optical sensor 150 has a nut 1401 on the long bolt 1402. Detecting position information of the nut 1401 using light to detect a change in position of the nut 1401 generated by loosening (S20) and based on the detected position information of the controller 180. When the predetermined condition is satisfied, the nut 1401 may be determined to be loosened and may include a step of performing a warning operation (S30).

In order to realize the technical idea of the present invention, as shown in FIG. 11, the controller 180, the optical sensor 150, the vibration sensor 200, the shutoff valve 1480, the shift valve 1470 and the output module ( 190 is a wired communication or wireless communication between, the control of the controller 180, the optical sensor 150, vibration sensor 200, shut-off valve 1480, the shift valve 1470 and the output module 190 Can be controlled.

In addition, the predetermined reference, the reference information value, and the predetermined vibration condition may be input by the input unit 195, and the controller 180 acquires the position information and / or the nut (in the normal state in which the nut 1401 is not loosened). 1401 may be calculated and set based on the location information acquired in the unlocked state.

Hereinafter, a technique of monitoring the loosening of the long bolt 1402 for detecting the loosening of the long bolt 1402 by the loosening of the nut 1401 using the pressure sensor 150 which is another embodiment of the present invention will be described. .

Therefore, the pressure sensor 150 may be installed in the breaker 1000 to detect that the nut 1401 is loosened.

For example, the pressure sensor 150 may be disposed in the recess 1402-1 formed in the long bolt 1402.

For example, the pressure sensor 150 may be disposed in the placement space 1401-3 formed in the nut 1401.

For example, the pressure sensor 150 may detect pressure information generated as the nut 1401 on the long bolt 1402 is loosened using a piezo sensor. However, the present invention is not limited thereto and may include all sensors capable of sensing pressure.

For example, the pressure sensor 150 may detect the pressure generated by the deformation of the shape of the nut 1401.

For example, the pressure sensor 150 may have a polygonal pillar shape.

However, the shape of the pressure sensor 150 is not limited to the polygonal column shape, but may be a plate shape, and may be variously modified from the viewpoint of those skilled in the art to correspond to the technical idea of the present invention.

As shown in FIG. 12, as an example, the pressure sensor 150 may be disposed in an arrangement space 1401-3 formed in the nut 1401.

The breaker 1000 may be further provided with a restraining portion 1401-3a disposed on the placement space 1401-3 so that the pressure sensor 150 is restrained by the nut 1401.

The placement space 1401-3 may be formed in a direction of the rotation axis 1402-2 of the long bolt 1402.

The virtual cross section in the horizontal direction orthogonal to the direction of the rotation axis 1402-2 of the arrangement space 1401-3 may be polygonal to constrain the pressure sensor 150.

For example, the restraining portions 1401-3a may be formed to correspond to a polygon of the layout space 1401-3 by changing from a liquid state to a solid state.

In this case, the restraining portions 1401-3a may be formed by filling a first material, which is initially in a liquid state and changes to a solid state after a predetermined time, is filled in the placement space 1401-3.

At this time, the restraining portions 1401-3a may serve to prevent the long bolt 1402 and the nut 1401 from being loosened on the long bolt 1402.

In addition, the restraining portions 1401-3a may only be in contact with the long bolt 1402 and the nut 1401, and may not be coupled to the nut 1401 and the long bolt 1402. That is, the restrainer 1401-3a may simply fill the layout space 1401-3.

In addition, the restrainer 1401-3a may rotate together with the nut 1401 when the nut 1401 is loosened on the long bolt 1402.

In addition, the restrainer 1401-3a may function to fix an upper end of the pressure sensor 150 to the nut 1401. As an example, the virtual section in the horizontal direction orthogonal to the direction of the rotation axis 1402-2 of the restrainer 1401-3a and the pressure sensor 150 has been described as being a polygon, but the pressure sensor 150 If it is possible to perform the function of fixing the top of the nut (1401), the restraining portion (1401-3a) can be variously modified at a level apparent to those skilled in the art. In this case, the nut 1401 may be deformed according to the shape of the restraining portions 1401-3a.

For example, the pressure sensor 150 has one end contacted with the restraining portions 1401-3a and restrained by the nut 1401, and the other end of the pressure sensor 150 is disposed at the recess 1402-1. 1140.

For example, the upper side of the long bolt 1402 and the nut 1401 may not be in contact. Here, the arrangement space (1401-3) is secured, so that the precise pressure can be measured.

For example, a portion of the nut 1401 in which the arrangement space 1401-3 is formed and the pressure sensor 150 may not be contacted. In addition, a portion of the nut 1401 in which the arrangement space 1401-3 is formed and the pressure sensor 150 may be in contact with each other. That is, depending on the size of the pressure sensor 150 and the direction in which the nut 1401 is fastened to the long bolt 1402, the contact may be different.

For example, the restrainer 1401-3a may be formed in the entirety of the layout space 1401-3.

As shown in FIG. 13, for example, the nut 1401 may form an arrangement space 1401-3 in which the pressure sensor 150 may be disposed.

For example, the nut 1401 may include a side portion 1401-1 on which a thread is formed and an upper portion 1401-2 extending obliquely from the side portion 1401-1.

Here, the side portion 1401-1 may have a side to which the long bolt 1402 can be fastened therein. The side surface may be formed on the inner surface of the nut 1401. The side surface may have a first side surface 1401-1a and a second side surface 1401-1b. The first side surface 1401-1a may not have a thread, and the second side surface 1401-1b may have a thread that may be coupled to the long bolt 1402. The first side surface 1401-1a may allow the nut 1401 and the upper side surface of the long bolt 1402 to form a separation distance. By having the separation distance, it is possible to ensure the size of the arrangement space (1401-3), which can be mounted to the long bolt 1402 the relatively large pressure sensor 150. This allows the measurement of precise pressures. The second side surfaces 1401-1b are threaded so that they can be screwed into the long bolts 1402.

Here, the upper portion 1401-2 may extend inclined to an upper end portion of the side portion 1401-1. The inclination may be 90 degrees, but is not limited thereto and may be variously modified at a level apparent to those skilled in the art. An arrangement space 1401-3 may be formed in the upper portion 1401-2.

For example, the placement space 1401-3 may be formed to penetrate the inner surface of the nut 1401 from the outside in the upper portion 1401-2 of the nut 1401.

Here, the arrangement space 1401-3 may be formed on the upper portion 1401-2 in the direction of the rotation axis 1402-2 of the long bolt 1402.

In addition, the layout space 1401-3 may be formed on the first side surface 1401-1a.

In addition, the horizontal cross section in the horizontal direction of the placement space 1401-3 formed in the nut 1401 may be polygonal to restrain the pressure sensor 150. The polygon may be variously modified according to the purpose of use and the manufacturing method.

As shown in FIG. 14, as an example, the long bolt 1402 may include a recess 1402-1 recessed and formed in the direction of the rotation axis 1402-2.

For example, the recess 1402-1 may be symmetrically formed with respect to the rotation axis 1402-2.

For example, the recess 1402-1 may be formed to correspond to a cross section of a horizontal direction orthogonal to the direction of the rotation axis 1402-2 of the pressure sensor 150. In this case, the virtual cross section of the depression 1402-1 may have an area equal to or larger than that of the pressure sensor 150 in the horizontal direction.

For example, the other end of the pressure sensor 150 may be disposed in the recess 1402-1.

For example, the horizontal virtual cross section of the recess 1402-1 and the horizontal cross section of the other end of the pressure sensor 150 may be different from each other.

For example, the horizontal virtual cross section of the recess 1402-1 may be hexagonal, and the horizontal cross section of the other end of the pressure sensor 150 may have a rectangular shape.

Here, the other end of the pressure sensor 150 disposed on the recess 1402-1 is a polygon of the horizontal section of the depression 1402-1, which is a polygon, and a cross section of the pressure sensor 150. The other end may be constrained by the long bolt 1402 defining the recess 1402-1 by the horizontal cross section.

Here, the meaning of restraint means that the other end of the pressure sensor 150 disposed on the recess 1402-1 is limited in rotation by a long bolt 1402 defining the recess 1402-1. Can mean.

In addition, as an example, the pressure sensor 150 may be fastened to the recess 1402-1 by a force fitting method, or may be fastened by the restraints 1401-3a-the first material and the like. However, the present invention is not limited thereto, and may include any method of fixing the other end of the pressure sensor 150 to the recess 1402-1 at a level apparent to those skilled in the art.

Here, the other end of the pressure sensor 150 may be fixed to the recess 1402-1.

At this time, the recess 1402-1 is the other end of the pressure sensor 150 disposed on the recess 1402-1 even when the nut 1401 on the long bolt 1402 is released. The other end of the pressure sensor 150 may be fixed so as not to rotate.

For example, an outer surface of the upper end of the long bolt 1402 may be formed with a thread that can be screwed with the nut 1401.

As shown in FIG. 15, as an example, the pressure sensor 150 may be disposed in the arrangement space 1401-3 formed on the nut 1401.

Herein, the restraining portion 1401-3a may be formed in the arrangement space 1401-3 formed between the pressure sensor 150 and the nut 1401.

In this case, the restricting portions 1401-3a may be formed by the first material. In addition, the restraining portions 1401-3a may be formed by a separate member, but the present invention is not limited thereto and may include any method of fixing one end of the pressure sensor 150 to the nut 1401. .

For example, the cross section of the pressure sensor 150 in the horizontal direction orthogonal to the direction of the rotational axis 1402-2 of the long bolt 1402 may be polygonal so that the shape is deformed by the loosening of the nut 1401. have.

At this time, one end of the pressure sensor 150 may be disposed in the placement space 1401-3.

For example, the virtual cross section of the recess 1402-1 in the horizontal direction may be polygonal to constrain the pressure sensor 150.

For example, the first center 1401-4, which is a center in the direction of the rotation axis 1402-2 of the arrangement space 1401-3, is the rotation axis 1402-2 of the recess 1402-1. It may coincide with the second center (1402-3) that is the center of the () direction.

For example, the placement space 1401-3 and the recess 1402-1 may have different virtual cross-sectional areas with respect to the horizontal direction.

For example, the shape of the cross section of the pressure sensor 150 may be formed to correspond to the shape of the virtual cross section of the recess 1402-1. In this case, the virtual cross section of the engagement portion may be formed to include the cross section of the pressure sensor 150.

When the nut 1401 is screwed to the long bolt 1402, the cross section and the recess of the placement space 1401-3 of the nut 1401 based on the rotation axis 1402-2. The virtual cross section of 1402-1 may be arranged at various positions. Therefore, as an example, the longest distance m from the first center 1401-4 to the virtual point on the virtual cross section of the layout space 1401-3 is the second center 1402-3. ) May be greater than or equal to the shortest distance n from the virtual point on the virtual cross section of the depression 1402-1.

Therefore, the cross section of the placement space 1401-3 of the nut 1401 and the virtual cross section of the recess 1402-1 vary as shown in FIGS. 8A, 8B, and 8C. Even if disposed in the position, the pressure sensor 150 may be disposed in the arrangement space 1401-3 and the recess 1402-1 of the nut 1401. This can be fastened to the long bolt 1402 with one nut 1401, which can reduce production costs and simplify the installation procedure.

As shown in FIG. 16, for example, as the nut 1401 on the long bolt 1402 is released, the pressure sensor 150 may detect pressure information.

In one example, the pressure sensor 150, the one end is in contact with the restraining portion (1401-3a) and is constrained to the nut (1401), the other end is in contact with the long bolt 1402 is the long bolt ( 1402).

For example, when the coupling between the restraining unit 1401-3a, which constrains the pressure sensor 150, the nut 1401, and the long bolt 1402 is released, the nut 1401 may be removed from the long bolt 1402. Can be solved. The virtual cross section of the side surface of the nut 1401 and the long bolt 1402 screwed to the side surface may have a circular cross section with respect to the horizontal direction. Accordingly, when the nut 1401 is released from the long bolt 1402, the side surface of the nut 1401 may rotate about the rotation axis 1402-2. The virtual cross section of the placement space 1401-3 formed in the upper portion 1401-2 of the nut 1401 is a polygon, and the restraining portion 1401-1 disposed in the placement space 1401-3. 3a) may also be formed as a polygon. Therefore, when the nut 1401 rotates, the restraining portions 1401-3a may be rotated in conjunction with the nut 1401.

In this case, the pressure sensor 150 constrained by the restraining portions 1401-3a may receive a torsional pressure. The pressure sensor 150 may measure the pressure generated by the generation of charge by the pressure.

As shown in FIG. 17, for example, the side surfaces 1401-1 may include only the second side surfaces 1401-1b.

For example, the side surface may include only the second side surfaces 1401-1b so that the upper surface of the long bolt 1402 and the lower surface of the upper portion 1401-2 of the nut 1401 may contact each other.

Here, the thickness of the breaker 1000 can be minimized by minimizing the thickness of the nut 1401.

Hereinafter, the long bolt loosening monitoring system for monitoring the long bolt loosening using a pressure sensor and a controller will be described in more detail.

The long bolt 1402 monitoring system may include a pressure sensor 150 and a controller 180.

For example, the controller 180 may determine whether the nut 1401 is loosened using the pressure information sensed by the pressure sensor 150.

Here, the pressure information may be an amount of charge generated as the pressure sensor 150 is twisted. However, the present invention is not limited thereto, and the pressure information detected according to the type of the pressure sensor may vary.

For example, when the controller 180 satisfies a predetermined condition based on the pressure of the pressure information detected by the pressure sensor 150, the controller 180 may determine that the nut 1401 is loosened, and the nut 1401 is loosened. In case of determination, a predetermined warning operation may be performed.

For example, the controller 180 is an electronic circuit that processes and calculates various electronic signals. The controller 180 receives pressure information or a signal from the pressure sensor 150, computes information / data, and breaks the electronic signal into a breaker. 1000 and other configurations of construction equipment.

The controller 180 is typically located on the carrier 120, but may also be located on the breaker 1000.

For example, the controller 180 may be distributedly arranged such that a part thereof is installed on the breaker 1000 side and the other part is installed on the carrier 120, and wireless / You can do that by collaborating by performing wired communication.

For example, when a plurality of controllers 180 are distributed, some of them simply transmit signals or information to a slave type, and others receive various signals or information as a master type to process / operate and command / It may also take the form of performing control.

The predetermined condition may be a reference condition for determining whether the nut 1401 is loosened.

For example, the controller 180 may determine that the nut 1401 is released when the data calculated / converted based on the pressure information detected by the pressure sensor 150 satisfies a predetermined condition, and the predetermined condition is determined. If not satisfied, it may be determined that the nut 1401 is not loosened.

The predetermined condition may be set by the user, and the pressure information obtained from the pressure sensor 150 in a normal state where the nut 1401 is not loosened or obtained from the pressure sensor 150 in a state where the nut 1401 is loosened. It may be set based on the pressure information.

In addition, the long bolt 1402 loosening monitoring system may further include an output module 190 for outputting an image or audio.

For example, the output module 190 may be installed in the breaker 1000 or may be installed in the carrier 120.

For example, the controller 180 may control the output module 190 to output a warning message about occurrence of loosening of the long bolt 1402 to the user through the output module 190.

As shown in FIG. 18, the predetermined condition may be a condition in which the pressure of the pressure information is equal to or greater than a predetermined reference pressure X.

The pressure of the predetermined pressure information may be data calculated / processed by the controller 180 based on data or positional information related to pressure information detected from the pressure sensor 150.

The pressure of the predetermined pressure information may be data calculated / processed by sensing a charge from the pressure sensor 150.

When the nut 1401 starts to loosen on the long bolt 1402, the pressure detected by the pressure sensor 150 starts to gradually increase.

In this case, the controller 180 may determine that the nut 1401 is released when the pressure of the pressure information is greater than or equal to a predetermined reference pressure.

As shown in FIG. 19, a predetermined condition is a first input of the pressure information at a time when the nut 1401 is installed at the long bolt 1402 (meaning a time when the nut 1401 is not loosened). The difference between the pressure value A and the second pressure value B, which is the pressure of the pressure information at the present time, may be a condition that is equal to or greater than a predetermined reference difference value Y.

The first pressure value A and the second pressure value B may be data calculated / processed by the controller 180 based on data or position information related to pressure information detected from the pressure sensor 150.

The controller 180 may determine that the nut 1401 is loose when the difference between the first pressure value A and the second pressure value B is greater than or equal to a predetermined reference difference value Y.

The reference reference value Y may be input by the user or may be a value previously stored in the controller 180.

The long bolt 1402 loosening monitoring system may further include a vibration sensor 200 for detecting vibration information of the breaker 1000 to detect the vibration amount of the breaker 1000.

Therefore, the pressure sensor 150 and the vibration sensor 200 may be used to more accurately sense that the nut 1401 on the long bolt 1402 is loosened.

For example, the predetermined condition may be that the vibration of the vibration information is greater than or equal to a predetermined reference vibration, and the pressure of the pressure information is greater than or equal to a predetermined reference pressure.

When the controller 180 satisfies the predetermined condition, the controller 180 may determine that the nut 1401 is loosened.

Here, if it is determined that the nut 1401 is loosened, the controller 180 can output a warning message to the user through the output module 190.

For example, the controller 180 may control the shutoff valve 1480 to block the flow of the working oil when the shutoff valve 1480 determines that the nut 1401 is loosened.

For example, when the controller 180 does not control the shutoff valve 1480, the shutoff valve 1480 is in a connecting position, and when the controller 180 controls the shutoff valve 1480, the shutoff valve 1480. Can be changed from the connecting position to the blocking position.

That is, the controller 180 may control the shutoff valve 1480 to be changed from the connection position to the shutoff position, and as a result, the shutoff valve 1480 may block the flow of the hydraulic oil.

As described above, when the shutoff valve 1480 is converted from the connection position to the shutoff position by the control of the controller 180, the control valve 1460 is continuously maintained in the reverse position, and as a result, the hydraulic source 160 Hydraulic fluid of the) may not flow into the rear chamber 1432, and thus the reciprocating motion of the piston 1440 may not be implemented.

Also, for example, the controller 180 controls the hydraulic pressure source 160 so that the hydraulic pressure source 160 supplies hydraulic oil to the breaker 1000 and the hydraulic pressure source 160 acts as the breaker 1000. It can be controlled to off state without supplying.

That is, when it is determined that the scratch has occurred, the controller 180 may control the hydraulic source 160 to prevent the operating oil from being supplied to the breaker 1000.

For example, when the controller 180 determines that the nut 1401 is loosened, the controller 180 may control the shift valve 1470 to control the reciprocating motion of the piston 1440.

For example, the controller 180 may control the piston 1440 to change to the short stroke state by controlling the shift valve 1470 when the piston 1440 determines that the nut 1401 is loosened in the long stroke state. If the piston 1440 determines that the nut 1401 is loose in the short stroke state, the piston 1440 may be stopped by controlling the shutoff valve 1480.

The user may recognize that the nut 1401 is loosened by changing the reciprocating state of the piston 1440 under the control of the controller 180.

Hereinafter, the long bolt 1402 loosening monitoring method will be described.

The long bolt 1402 loosening monitoring method includes a step in which the chisel 1600 hits an object according to the reciprocating motion of the piston 1440 in the cylinder 1430, and a pressure sensor loosens the nut 1401 on the long bolt 1402. Detecting pressure information of the nut 1401 generated by the controller and when the controller 180 satisfies a predetermined condition based on the detected pressure information, the nut 1401 is determined to be released and a warning operation is performed. It may include the step of performing.

In order to realize the technical idea of the present invention, as shown in FIG. 20, the controller 180, the pressure sensor 150, the vibration sensor 200, a shutoff valve 1480, a shift valve 1470, and an output module ( 190 is a wired or wireless communication between, the control of the controller 180, the pressure sensor 150, vibration sensor 200, shut-off valve 1480, shift valve 1470 and output module 190 Can be controlled.

In addition, the predetermined reference, the predetermined reference pressure (X), the predetermined reference difference value (Y), and the predetermined reference vibration may be input by the input unit, and the controller 180 is in a normal state in which the nut 1401 is not loosened. It may be set by calculating based on the position information obtained from the position information and / or the position information obtained in the nut 1401 is loosened.

Hereinafter, a description will be given of a technique of monitoring the damage of the long bolt 1402 to detect that the long bolt 1402 is broken by using the sensor 150 as another embodiment of the present invention.

The breaker 1000 may be vibrated by the reciprocating movement of the piston 1440 on the cylinder 1430, and the long bolt 1402 may be damaged by the vibration.

When the long bolt 1402 is damaged, the long bolt 1402 is not fixed to the cylinder 1430, the front head 1450 and the head cap 1420 (cylinder 1430, the front head 1450 and The head cap 1420 may not be coupled to each other.

When the long bolt 1402 is broken, the cylinder 1430, the front head 1450, and the head cap 1420 may be spaced apart from each other, and may be destroyed by friction or strike by the vibration of the breaker 1000. .

Therefore, the detection sensor 150 may be installed in the breaker 1000 to detect that the long bolt 1402 is broken.

For example, the detection sensor 150 may detect that the long bolt 1402 is broken.

For example, the sensor 150 may be disposed in the accommodation space 1402-4 formed in the long bolt 1402.

For example, the sensing sensor 150 is formed in the second through hole 2403-4 formed in the washer 1403 or the first through hole 3402-5 or the head cap formed in the long bolt 1402. It may be disposed in the third through hole (4420-3).

For example, the sensor 150 may detect the damage of the long bolt 1402 by an electrical short.

In this case, the detection sensor 150 may detect breakage of the long bolt 1402 by sensing current or resistance.

That is, when the long bolt 1402 is broken, the sensor 150 installed in the long bolt 1402 may be broken in conjunction with the damage of the long bolt 1402.

At this time, the sensor 150 is a body 150-2 inserted into the accommodation space 1402-4, a wire 150-3 for applying a current to the body 150-2 and the wire 150-3. ) And the terminal 150-1 coupled to the body 150-2 to connect the body 150-2.

In addition, the body 150-2 may be formed of a PCB 150-2a through which electricity is conducted. The body 150-2 may include a conductor 150-2c that is electrically conductive, and an insulator 150-2b that insulates the conductor 150-2c from the long bolt 1402. However, the body 150-2 is not limited thereto, and may mean any means capable of insulating the long bolt 1402 while electricity flows from the viewpoint of those skilled in the art.

In addition, the terminal 150-1 is the body 150-2. The wire 150-3 may be connected to the end of the wire. The terminal 150-1 may exist only at one end of the body 150-2, and may exist at both one end and the other end. This can be variously modified in consideration of the user's purpose of use, production situation and the like to those skilled in the art.

In addition, the wire 150-3 may electrically connect the body 150-2 and the galvanometer (not shown) or the controller 180 and the body 150-2. However, the present invention is not limited thereto, and all the sensing means and the wire 150-3 that may detect the breakage of the long bolt 1402 at a level apparent to those skilled in the art may be connected.

For example, the detection sensor 150 may detect a breakage of the long bolt 1402 by detecting a change in the position of the accommodation space 1402-4 using a position displacement sensor.

At this time, the position displacement transmitter (not shown) of the sensor 150 is disposed at one end of the long bolt 1402, the position displacement receiver (not shown) of the sensor 150 is the other end of the long bolt 1402. Can be placed in. The position displacement transmitter emits a laser into the accommodation space 1402-4, and the position displacement receiver receives the laser to sense a change in the position displacement of the accommodation space 1402-4. If the long bolt 1402 is damaged, the position displacement receiver may detect that the position displacement of the accommodation space 1402-4 varies.

For example, the detection sensor 150 may detect the liquid in the liquid leaked by breakage, such as breakage of the long bolt 1402, and detect breakage of the long bolt 1402.

In this case, the body 150-2 may be a tube containing a fluid. A leakage sensor may be disposed at an upper end or a lower end of the long bolt 1402. When the long bolt 1402 is broken, the body 150-2 may be broken, and fluid may leak from the body 150-2. In this case, the leakage sensor may detect the fluid to detect breakage of the long bolt 1402.

However, the present invention is not limited thereto, and may correspond to the structure of the present invention, and may include all detection sensors 150 capable of detecting breakage of the long bolt 1402.

For example, the first through hole 3402-5 may be disposed to correspond to the second through hole 3403-4.

For example, the first through hole 3402-5 may be disposed to correspond to the third through hole 4420-3.

In addition, the through holes are correspondingly disposed, which means that the electric wires are arranged to be inserted from the outside to the accommodation space through the through holes so that an electrical contact with the body is inserted into the accommodation space. have.

In addition, the through holes may be arranged so that the wire can be inserted.

As shown in FIG. 21, as an example, the long bolt 1402 forms an accommodation space 1402-4, and the detection sensor 150 includes the accommodation space 1402-4 of the long bolt 1402. And it is inserted into the) can detect the breakage of the long bolt 1402.

For example, the breaker 1000 may include a head cap 1420, a cylinder 1430, a front head 1450, a long bolt 1402, a washer 1403, a nut 1401, and a detection sensor 150. have.

For example, the long bolt 1402 may be inserted into the insertion hole 1420-1 formed in the head cap 1420, the cylinder 1430, and the front head 1450. The long bolt 1402 may fix the head cap 1420, the cylinder 1430, and the front head 1450. The long bolt 1402 may fix the head cap 1420, the cylinder 1430, and the front head 1450 by a nut 1401. The nut 1401 may be screwed with a screw thread formed at both ends of the long bolt 1402.

In one example, the washer 1403 may be disposed between the long bolt 1402 and the nut 1401. The washer 1403 may be disposed only at an upper end of the head cap 1420. The washer 1403 may be disposed only at the lower end of the head cap 1420. The washer 1403 may be disposed at an upper end and a lower end of the head cap 1420.

For example, the long bolt 1402 may form an accommodation space 1402-4 in which the sensor 150 may be disposed. The accommodation space 1402-4 may be formed inside the long bolt 1402 in the longitudinal direction of the rotation axis A of the long bolt 1402. The accommodation space 1402-4 may be entirely formed in the long bolt 1402. The rotation center of the accommodation space 1402-4 may coincide with the rotation center of the long bolt 1402. An upper outer side of the long bolt 1402 and a lower outer side of the long bolt 1402 may be connected by the accommodation space 1402-4.

In one example, the long bolt 1402, the first head portion 1402-1 to which the nut 1401 is coupled, the body portion 1402 extending in the longitudinal direction downward from the first head portion 1402-1. 2) and a second head portion 1402-3 extending downward from the first body portion 1402-2 in the longitudinal direction and to which the nut 1401 is coupled, and the accommodation space 1402-4. The silver may be formed from an end portion of the first head portion 1402-1 to an end portion of the second head portion 1402-3.

For example, the sensor 150 is inserted into the accommodation space (1402-4), the first head (1402-1), the body portion (1402-2) and the second head (1402-3) Detects breakage. The body of the sensor 150 may be disposed in the accommodation space (1402-4). The terminal 150-1 of the detection sensor 150 may be formed outside the accommodation space 1402-4. However, the present invention is not limited thereto, and the terminal 150-1 may be formed in the accommodation space 1402-4.

For example, the detection sensor 150 blocks both side entrances of the accommodation space 1402-4 with a plug (not shown) made of PVC or urethane and inserts the detection sensor 150 into a groove formed in the plug. Put the detection sensor 150 can be fixed so as not to shake. However, the present invention is not limited thereto and may include any means capable of fixing the detection sensor 150 to the accommodation space 1402-4.

As shown in FIG. 22, as an example, the breaker 1000 may include a washer 1403.

For example, the washer 1403 has an internal space 1403-1 into which the long bolt 1402 is inserted, an internal surface 1403-2 defining the internal space 1403-1, and a shape of the washer 1403. It may be provided with an outer surface (1403-3) to define.

In one example, the washer 1403 may prevent damage to the nut 1401, the head cap 1420, and the front head 1450, and may reduce vibration of the breaker 1000.

As shown in FIG. 23, as an example, the breaker 1000 may include a long bolt 1402 having an accommodation space 1402-4.

For example, the long bolt 1402 has a thread formed therein, the first head portion 1402-1, which may be screwed with the nut 1401, and a second head which is threaded, and may be screwed with the nut 1401. The body 1402-3 and the body 1402-2 connecting the first head 1402-1 and the second head 1402-3 may be provided.

In this case, the first head 1402-1 may be disposed in an upward direction based on the body portion 1402-2. The second head 1402-3 may be disposed in a downward direction based on the body portion 1402-2.

In this case, the first head 1402-1, the second head 1402-3, and the body 1402-2 may be integrally formed. The centers of rotation of the first head 1402-1, the second head 1402-3, and the body 1402-2 may coincide in the longitudinal direction.

For example, the first head 1402-1 has a thread formed therein, and a first head bottom surface 1402 inserted into the first head top surface 1402-1a and the washer 1403 to be screwed with the nut 1401. -1b).

For example, the second head 1402-3 has a thread formed therein, and a third head upper end surface 1402-1c to which the nut 1401 is screwed, and a fourth head lower end surface to which the washer 1403 is inserted. May be provided). The second head 1402-3 may be provided with only the third head upper surface 1402-1c.

For example, the body portion 1402-2 may include a body outer surface 1402-2a that defines a shape of an outer shape.

For example, the accommodation space 1402-4 may be formed in the longitudinal direction in both the first head portion 1402-1, the body portion 1402-2, and the second head portion 1402-3.

As shown in FIG. 24, the accommodating space 2402-4 of the long bolt 1402 may be formed in another embodiment.

For example, the accommodation space 2402-4 may be formed from the end of the second head 1402-3 to the middle of the first head 1402-1.

At this time, the accommodation space (2402-4) may be formed to include a portion that is damaged in many times the long bolt 1402 in principle.

In this case, the terminal 150-1 of the detection sensor 150 may be formed only toward an end portion of the second head 1402-3.

In this case, the body 150-2b of the sensor 150 may be inserted into the accommodation space 2402-4. The terminal 150-3 of the detection sensor 150 may be disposed outside the accommodating space 2402-4, but is not limited thereto and may be disposed in the accommodating space 2402-4.

At this time, the sensor 150 is inserted into the accommodation space (2402-4), the middle of the first head (1402-1), the body portion (1402-2) and the second head (1402) -3) Breakage can be detected.

Since the accommodating space 2402-4 is formed only to the end of the first head 1402-1, moisture and foreign matter flow into the accommodating space 2402-4 from the upper side of the long bolt 1402. Can be prevented.

As shown in FIG. 25, the accommodation space 3402-4 of the long bolt 1402 may be formed in another embodiment.

For example, the accommodation space 3402-4 may be formed from an end of the first head 1402-1 to the middle of the first head 1402-1.

In this case, the accommodation space 3402-4 is formed to include the second through hole 3403-4 of the washer 3403 in an imaginary direction orthogonal to the rotation axis A of the long bolt 1402. Can be.

At this time, the accommodation space (3402-4) is to be formed to include a through hole (not shown) formed in the nut (1401) in the imaginary direction perpendicular to the axis of rotation (A) of the long bolt 1402. Can be.

In this case, the accommodation space 3402-4 may be formed in the middle of the first head 1402-1, and may be variously modified at a level apparent to those skilled in the art.

By forming an accommodating space 3402-4 only in part of the long bolt 1402, the durability of the long bolt 1402 can be enhanced.

For example, the first head 1402-1 has a first through hole 3402-5 connecting the outside and the accommodation space 3402-4, and the washer 3403 is the outside and the inside. The second through hole 3403-4 connecting the space 1403-1 may be provided.

In this case, the second through hole 3403-4 may be disposed to correspond to the first through hole 3402-5.

For example, the detection sensor 150 may be inserted into the accommodation space 3402-4 to detect breakage of the first head 1402-1.

In this case, the detection sensor 150 is inserted into the first through hole 3402-5 and the second through hole 3403-4 to detect breakage of the first head 1402-1. Can be.

In this case, the terminals 150-1 of the detection sensor 150 may be disposed at both ends of the body 150-2c, and may be disposed in a lower direction of the body 150-2c. This can be changed at a level apparent to those skilled in the art in consideration of the user's purpose and industrial sites.

In this case, the terminal 150-1 of the detection sensor 150 may be disposed outside the accommodation space 3402-4. In addition, the terminal 150-1 of the detection sensor 150 may be disposed in the accommodation space 3402-4.

In one example, the washer 3403, when the nut 1401 is screwed to the long bolt 1402, the first through hole (3402-5) and the second through hole (3403-4) It may further include a first corresponding means (3403-5) to be disposed correspondingly.

For example, the head cap 3420 may include the first through hole 3402-5 and the second through hole 3403-4 when the nut 1401 is screwed to the long bolt 1402. The second counter means 3420-2 may be further provided to correspond to the corresponding means.

For example, the first through hole 3402-5 and the second through hole 3403-4 correspond to the first corresponding means 3403-5 and the second corresponding means 3420-2. Can be arranged.

As shown in FIG. 26, as an example, the washer 3403 may further include a second through hole 3403-4 and a first corresponding means 3403-5.

For example, the second through hole 3403-4 may connect the outside and the internal space 1403-1 of the washer 3403.

In this case, the second through hole 3403-4 may be formed to connect the inner surface 1403-2 of the washer 3403 and the outer surface 1403-3 of the washer 3403.

In this case, the second through hole 3403-4 may be formed such that a virtual line orthogonal to the rotation axis A of the inner space 1403-1 of the washer 3403 becomes the center of rotation. Without limiting, various modifications may be made to allow the wire 150-3 to be inserted into the second through hole 3403-4 at a level apparent to those skilled in the art.

In this case, an electric wire may be inserted into the second through hole 3403-4.

For example, the first corresponding means 3403-5 may be formed at the lower end of the washer 3403.

In this case, the first corresponding means 3403-5 may be formed to protrude, and may be formed to be recessed.

In this case, the first counterpart 3403-5 may have the same shape as the second counterpart 3420-2 to be coupled to the second counterpart 3420-2.

In this case, the shape of the first corresponding means 3403-5 may be variously modified. In addition, the shape of the first corresponding means 3403-5 may include all shapes that allow the first through hole 3402-5 and the second through hole 3403-4 to correspond to each other.

For example, a plurality of first counterparts 3403-5 may be formed in the washer 3403. The number of the first corresponding means may be formed to correspond to the number of the second corresponding means (3420-2). The number of the first corresponding means 3403-5 may be variously changed in consideration of an industrial environment and a manufacturing environment at a level apparent to those skilled in the art.

For example, the first corresponding means 3403-5 may extend from a lower end of the outer surface 1403-3 to include all of the upper end surfaces of the head cap 3420.

At this time, the washers 3403 inserted into the respective long bolts 1402 may be integrally formed by the first corresponding means 3403-5.

As shown in FIG. 27, as an example, the head cap 3420 may further include an insertion hole 1420-1 through which the long bolt 1402 is inserted and a second corresponding means 3420-2.

For example, the insertion hole 1420-1 may be formed to allow the long bolt 1402 to be inserted therein.

In this case, the insertion hole 1420-1 may be formed to correspond to the shape of the long bolt 1402.

For example, the second corresponding means 3420-2 may be formed at an upper end of the head cap 3420.

In this case, the second countermeasure 3420-2 may be formed to protrude, and may be formed to be recessed.

In this case, the second counterpart 3420-2 may have the same shape as the first counterpart 3403-5 so as to be coupled to the first counterpart 3403-5.

In this case, the shape of the second corresponding means 3420-2 may be variously modified. In addition, the shape of the second countermeasure means 3420-2 may include any shape that allows the first through hole 3402-5 and the second through hole 3403-4 to correspond to each other. have.

For example, a plurality of second counterparts 3420-2 may be formed in the head cap 3420. The number of the second corresponding means 3420-2 may be formed to correspond to the number of the first corresponding means 3403-5. The number of the second countermeasures 3420-2 may be variously changed in consideration of an industrial environment and a manufacturing environment at a level apparent to those skilled in the art.

As shown in FIG. 28, for example, the long bolt 1402 may further include a first through hole 3402-5, and the accommodation space 3402-4 has the first head 1402-1. It may be formed from the end of the) to the middle of the first head (1402-1).

For example, the first through hole 3402-5 may be formed to connect the lower end surface of the first head 1402-1 to the accommodation space 3402-4.

In this case, the first through hole 3402-5 may be formed as a center of rotation of an imaginary line orthogonal to the rotation axis A of the long bolt 1402, but is not limited thereto. The wire 150-3 may be variously modified to be inserted into the first through hole 3402-5.

At this time, the wire of the sensor 150 is inserted into the first through hole (3402-5) may be in electrical contact with the body (150-2c) is inserted into the receiving space (3402-4).

For example, the receiving space 3402-4 may be formed in a portion of the long bolt 1402 in the longitudinal direction, thereby enhancing durability of the long bolt 1402.

As shown in FIG. 29, as an example, the accommodation space 4402-4 of the long bolt 1402 may be formed in another embodiment.

For example, the head cap 4420 may include a third through hole 4420-3 connecting the outside with the first through hole 4402-5.

In this case, the third through hole 4420-3 may be disposed to correspond to the first through hole 4402-5.

In this case, the third through hole 4420-3 may connect the outside with the accommodation space 4402-4 through the first through hole 4402-5.

For example, the third through hole 4420-3 may connect the outside and the insertion hole 1420-1 of the head cap 4420.

In this case, the third through hole 4420-3 may be formed to connect the head outer wall and the insertion hole 1420-1.

In addition, the third through hole 4420-3 may be formed to connect the cylinder outer wall (not shown) or the front head outer wall (not shown) and the insertion hole 1420-1.

For example, the accommodation space 4402-4 may be formed to include the third through hole 4420-3 in an imaginary direction orthogonal to the rotation axis A of the long bolt 1402.

At this time, by forming a receiving space (4402-4) only a portion of the long bolt 1402, it is possible to enhance the durability of the long bolt 1402.

For example, the detection sensor 150 may be inserted into the first through hole 4402-5 and the third through hole 4420-3 to detect breakage of the long bolt 1402.

At this time, the wire 150 of the sensor 150 is inserted into the third through hole 4420-3 and the first through hole 4402-5, and the body 150-2c inserted into the accommodation space 4402-4; It can be electrically contacted.

As shown in FIG. 30, as an example, the head cap 4420 may further include a third through hole 4420-3 connecting the outside and the insertion hole 1420-1.

For example, the third through hole 4420-3 may be formed to connect the insertion hole 1420-1 through which the long bolt 1402 is inserted from the head outer wall of the head cap 4420.

In this case, the third through hole 4420-3 may be formed as a center of rotation of a virtual line orthogonal to the rotation axis A of the long bolt 1402, but is not limited thereto. The wire 150-3 may be variously modified to be inserted into the third through hole 4420-3.

Hereinafter, the long bolt 1402 failure monitoring system for monitoring the long bolt 1402 damage by using the sensor 150 and the controller 180 will be described in more detail.

The long bolt 1402 monitoring system may include a sensing sensor 150 and a controller 180.

For example, the controller 180 may determine whether the long bolt 1402 is damaged by using the damage information detected by the detection sensor 150.

Here, the damage information may be an amount of current flowing through the body 150-2 of the detection sensor 150 or a resistance value of the body 150-2.

In addition, the damage information may be position information detected by the position displacement receiver.

In addition, the damage information may be information that the leakage sensor detects a fluid.

Here, the damage information may refer to all information detected by the sensor 150.

Here, the damage information may be data related to damage information detected from the sensor 150 or data calculated / processed by the controller 180 based on the damage information.

For example, when the controller 180 satisfies a predetermined condition based on the damage information detected by the detection sensor 150, the controller 180 may determine that the long bolt 1402 is broken and perform a warning operation.

For example, the controller 180 is an electronic circuit that processes and calculates various electronic signals. The controller 180 receives damage information or a signal from the sensor 150, calculates and processes information / data, and breaks an electronic signal. 1000 and other configurations of construction equipment.

The predetermined condition may be a reference condition for determining whether the long bolt 1402 is broken.

For example, the controller 180 may determine that the long bolt 1402 is damaged when the data calculated / converted based on the sensing information detected by the sensing sensor 150 satisfies a predetermined condition, and is predetermined. If the condition is not satisfied, it may be determined that the long bolt 1402 is not broken.

The predetermined condition may be set by the user, and the damage information obtained from the sensor 150 in the normal state in which the long bolt 1402 is not broken or the detection sensor 150 in the state in which the long bolt 1402 is broken. It may be set based on the damage information obtained from the).

In addition, the long bolt 1402 failure monitoring system may further include an output module for outputting video or audio.

The output module may be implemented as, for example, an image output module that mainly outputs an image or an audio output module that outputs an audio.

The output module may directly output a video or audio signal to a user, and may include a USB port for transmitting a video / audio signal to another device that directly outputs a video or audio signal to a user.

The output module may be configured to output an image or audio to output a warning message for occurrence of damage to the long bolt 1402.

In one example, the output module may be installed in the breaker 1000 or may be installed in the carrier 120.

For example, the controller 180 may control the output module to output a warning message for occurrence of damage to the long bolt 1402 to the user through the output module.

The controller 180 and the output module may be wired or wireless communication.

For example, the sensor 150 may detect the amount of current flowing through the body 150-2 of the sensor 150. The controller 180 may determine that the long bolt 1402 is damaged when the damage information (current amount) detected by the detection sensor 150 is equal to or less than a predetermined reference value.

Here, when the body 150-2 is broken by the long bolt 1402, the current does not continue to flow in the body 150-2. In the case of such an electrical short, the amount of current flowing through the body 150-2 corresponds to '0', but a minute current may flow through the body 150-2 due to foreign matter and other experimental errors.

The predetermined condition may be a condition in which the change amount of the damage information detected by the detection sensor 150 is equal to or greater than a predetermined reference change value X.

For example, when the body 150-2 of the detection sensor 150 is damaged, the damage information of the detection sensor 150 may detect damage information and other damage information that is previously measured. Noise may occur in the damage information due to the breaker 1000 vibration. In order for the controller 180 not to determine that the long bolt 1402 is broken with respect to the noise of the damage information, a predetermined condition is that a change amount of the damage information detected by the detection sensor 150 is a predetermined reference change value. The condition may be (X) or more.

For example, as shown in Fig. 31, the damage information measured between t1 and t2 is smaller than the reference change value X. In this case, the controller 180 may not determine that the long bolt 1402 is damaged. However, the damage information measured between t3 and t4 is larger than the reference change value (X). In this case, the controller 180 may determine that the long bolt 1402 is broken.

The long bolt 1402 failure monitoring system may further include a vibration sensor 200 for detecting vibration information of the breaker 1000 to detect the vibration amount of the breaker 1000.

The vibration sensor 200 may detect vibration information regarding vibration of the breaker 1000 generated as the reciprocating motion of the piston and / or the chisel strikes the hitting object.

When the long bolt 1402 is broken, the close coupling between the cylinder 1430 and the front head 1450 and the head cap 1420 may be loose, and vibration may be amplified than when the long bolt 1402 is not broken.

In order to operate the detection sensor 150, power must be continuously supplied. Therefore, the detection sensor 150 may detect breakage of the long bolt 1402 when the vibration telegram detected by the vibration sensor 200 satisfies a predetermined vibration condition.

Since only one vibration sensor 200 is normally used, power consumption generated while using the sensor can be reduced.

When the controller 180 satisfies the predetermined condition, the controller 180 may determine that the long bolt 1402 is broken.

Long bolt 1402 failure monitoring system may further include an output module for outputting video or audio.

Here, when the controller 180 determines that the long bolt 1402 is damaged, the controller 180 may output a warning message to the user through the output module.

In addition, as an example, the controller 180 may stop the piston reciprocating motion when it is determined that the damage.

Hereinafter, the long bolt 1402 damage monitoring method will be described.

The long bolt 1402 damage monitoring method comprises the steps of the chisel 1600 hitting the object in accordance with the reciprocating motion of the piston 1440 in the cylinder 1430, detecting the damage of the long bolt 1402 and the controller ( When the 180 satisfies a predetermined condition based on the damage information detected by the detection sensor 150, it may include determining that the long bolt 1402 is broken and performing a warning operation.

In order to realize the technical idea of the present invention, as shown in FIG. 16, the controller 180, the sensor 150, the vibration sensor 200, the shutoff valve 1480, the shift valve 1470 and the output module ( 190 is a wired or wireless communication between, the control of the controller 180, the sensor 150, vibration sensor 200, shut-off valve 1480, the shift valve 1470 and the output module 190 Can be controlled.

In addition, it may be input by a predetermined reference, a predetermined reference value, a predetermined reference change value (X), the damage information and / or chapter obtained by the controller 180 in the normal state that the long bolt 1402 is not damaged The bolt 1402 may be calculated and set based on the damage information obtained in the damaged state.

In the above description of the configuration and features of the present invention based on the embodiment according to the present invention, the present invention is not limited thereto, and various changes or modifications can be made within the spirit and scope of the present invention. It will be apparent to those skilled in the art that such changes or modifications fall within the scope of the appended claims.

Claims

A cylinder to receive the piston such that the piston reciprocates;

A head cap disposed above the cylinder;

A front head disposed below the cylinder and having a chisel hit by a reciprocating piston;

A long bolt coupling the cylinder, the head cap and the front head to each other;

A nut coupled to the long bolt to fix the long bolt; And

It includes; an optical sensor for detecting the position information of the nut by using light to detect the position change of the nut generated as the nut on the long bolt loosened;

Breaker.
The method of claim 1,

The optical sensor,

Installed in the head cap,

Detecting position information on the side of the nut,

Breaker.
The method of claim 2,

The head cap,

Forming a recessed space recessed from an outer surface to cover at least a portion of the side of the nut and a receiving space communicating with the side of the nut disposed in the recessed space,

The optical sensor,

Installed in the accommodation space,

Detecting position information on the side of the nut,

Breaker.
The method of claim 1,

The nut,

Create a receiving space,

The optical sensor,

Disposed on the accommodation space to be protected from an external environment,

Breaker.
The method of claim 4, wherein

A cover part covering the accommodation space to protect the optical sensor disposed on the accommodation space from an external environment;

Breaker.
The method of claim 4, wherein

The optical sensor,

Detecting location information for the long bolt,

Breaker.
A cylinder for accommodating the piston so that the piston reciprocates, a head cap disposed above the cylinder, a front head having a chisel disposed under the cylinder and striking the reciprocating piston, the cylinder and the head cap, and the In the long bolt loosening monitoring system of the breaker having a long bolt for coupling the front head and a nut screwed to the long bolt to secure the long bolt,

An optical sensor for detecting position information of the nut using light to detect a change in position of the nut generated as the nut on the long bolt is loosened; And

And a controller configured to determine that the nut is loose and perform a warning operation based on the sensed location information.

Long bolt loosening monitoring system.
The method of claim 7, wherein

The predetermined condition is

A condition where a difference between the first position information value, which is the position information at the time when the nut is installed on the long bolt, and the second position information value, which is the position information at the present time, is equal to or greater than a predetermined reference information value;

Long bolt loosening monitoring system.
The method of claim 7, wherein

And a vibration sensor for detecting vibration information of the breaker to detect the vibration amount of the breaker.

The optical sensor,

When the vibration information satisfies a predetermined vibration condition,

Detecting the location information,

Long bolt loosening monitoring system.
The method of claim 7, wherein

An output module for outputting an image or an audio;

The controller,

If it is determined that the nut is loosened outputs a warning message through the output module,

Long bolt loosening monitoring system.
The method of claim 7, wherein

The controller,

Stopping the reciprocating motion of the piston when it is determined that the nut is loosened,

Long bolt loosening monitoring system.
The method of claim 11,

The breaker further comprises a control valve connecting the hydraulic source and the rear chamber of the cylinder for the forward movement of the piston or a shutoff valve to selectively shut off the flow of the hydraulic oil and to drain the hydraulic oil from the rear chamber of the cylinder. Equipped-

The controller,

When the nut is determined to be loose, the shutoff valve controls the shutoff valve to block the flow of the working oil,

Long bolt loosening monitoring system.
The method of claim 12,

The shutoff valve selectively shuts off the flow of the hydraulic oil to the control valve;

The controller,

When the nut is determined to be loose, the shutoff valve controls the shutoff valve to block the flow of the working oil,

Long bolt loosening monitoring system.
The chisel hitting the object in accordance with the reciprocating motion of the piston in the cylinder;

Detecting, by an optical sensor, position information of the nut using light to detect a change in position of the nut caused by loosening of the nut on the long bolt;

And determining that the nut is loosened and performing a warning operation when the controller satisfies a predetermined condition based on the detected position information.

Long bolt loosening monitoring method.