WO2019174559A1

WO2019174559A1 - Hollow rotary drilling mechanism with combination of vane motor driving and planetary gear speed reduction

Info

Publication number: WO2019174559A1
Application number: PCT/CN2019/077746
Authority: WO
Inventors: 李永胜; 王献忠; 王维林; 王秋景; 张婕妤; 张宝燕
Original assignee: 山东天瑞重工有限公司
Priority date: 2018-03-15
Filing date: 2019-03-12
Publication date: 2019-09-19
Also published as: CN108223756A

Abstract

Disclosed is a hollow rotary drilling mechanism with a combination of vane motor driving and planetary gear speed reduction. The hollow rotary drilling mechanism comprises a bit shank sleeve (11), and the bit shank sleeve (11) is driven by a vane pump and planetary gear speed reducer combination (27) to realize a rotary drilling motion. Power transmission between a vane pump and a planetary speed reducer is realized by providing an integrated impeller-sun gear (29). The center of gyration of the impeller-sun gear (29) is the same as that of the planetary speed reducer and the bit shank sleeve (11), thereby reducing the size of a transmission chain and improving the transmission efficiency.

Description

Hollow turning mechanism for blade motor driven planetary gear reduction combination

The present application claims priority to Chinese Patent Application No. 201810212320.1, entitled "Hollow Rotary Brazing Mechanism of Blade Motor Drive Planetary Gear Reduction Combination", filed on March 15, 2018, the entire contents of which is hereby incorporated by reference. This is incorporated herein by reference.

Technical field

Embodiments of the present invention relate to, but are not limited to, a hollow turning mechanism of a rock drill used in the construction of coal mines, tunnels, railways, transportation, hydropower, and national defense stone foundations, and are mainly used on rock drills, including hydraulic rock drills and pneumatic rock drills. More specifically, the invention relates to a hollow rotary brazing mechanism for a blade motor driving planetary gear deceleration combination, belonging to the field of engineering machinery.

Background technique

As shown in Fig. 1, the rotary device of the hydraulic rock drill currently used is the torque output of the hydraulic motor, and the torque is transmitted through the gear and belt transmission to realize the rotation of the drill rod and the drill bit, and is mainly composed of three parts: The first part is composed of a hydraulic motor 1, a primary drive wheel 3 and a chamber casing 2. The second portion is composed of an intermediate shaft 9, a primary driven wheel 23, a first bearing 4, a second bearing 8, and a synchronous drive pulley 7. The third portion is composed of a first bearing 14, a second bearing 18, a synchronous driven wheel 16, a tail sleeve 11, a guide sleeve 10, a cover 12, a pressure plate 13, a core 15, and a timing belt 6.

The principle of the slewing device is to transfer the high-pressure water supplied from the pumping station to the hydraulic motor 1, and drive the hydraulic motor to rotate. At the shaft extension of the hydraulic motor, the third flat key 24 is connected to the primary driving wheel 3, and the rotation is performed. The hydraulic motor drives the first stage driving wheel to rotate, forming a first part of the rotating device;

The rotation of the first driving wheel 3 drives the first-stage passive wheel 23 meshing therewith, the first-stage passive wheel and the intermediate shaft 9 are connected together by the second flat key 22 and the second snap ring 21, and the intermediate shaft 9 passes through the first bearing. 4. The second bearing 8 and the spacer 5 connect and fix the synchronous driving wheel 7 to form a second part of the rotating device;

The synchronous driven wheel 16 is mounted on the stalk sleeve 11 and is connected by the first snap ring 17 and the first flat key 20. Through the assembly relationship of the third bearing 14, the fourth bearing 18, the core 15, the pressure plate 13, the guide sleeve 10 and the outer cover 12, the position of the synchronous driven wheel 16 is determined to constitute the third portion of the rotary device. When the synchronous driving wheel 7 rotates, the synchronous driven wheel 16 and the stern sleeve 11 are rotated together by the connection of the timing belt 6, and the piston 19 completes the reciprocating impact movement in the stalk sleeve 11, thereby realizing the rotating transmission of the hydraulic rock drill. .

Other examples are to change the timing belt drive to gear transmission, and the rest is no different from the example. This type of slewing device has the following defects: the transmission chain is long in size, low in efficiency, high in energy consumption; large in structure size, heavy in equipment, and eccentric in equipment, which is not conducive to hand-held operation.

Summary of the invention

In view of the above problems, an object of the present application is to provide a hollow rotating mechanism in which a blade motor drives a planetary gear reduction combination. Specifically, the present application provides a hollow rotating mechanism that has a short transmission chain size, high efficiency, low energy consumption, small basic structure size, and small blade weight driven planetary gear reduction combination.

The present application provides a hollow rotating mechanism for a blade motor driven planetary gear reduction combination, comprising a shank sleeve driven by a vane pump planetary gear reducer assembly to achieve a turning action.

Wherein the vane pump planetary gear reducer assembly includes a planetary carrier-cranktail sleeve disposed on the solder tail sleeve for driving the rotation of the solder tail sleeve, the solder tail sleeve being adjacent to the planet The wheel carrier-the side of the shank is provided with an impeller-sun wheel.

Wherein the planetary array on the planetary carrier-squeegee sleeve is provided with a plurality of planetary gears, the planetary gears can drive the planetary carrier-spindle sleeve to rotate, and the impeller-sun wheel is used to drive the planet The gear rotates.

Wherein, a plurality of the planetary gears are externally provided with a planetary ring gear, and the planetary ring gear is coaxially assembled with the solder tail sleeve.

Wherein the impeller-sun wheel comprises an impeller and a sun gear, the impeller is for driving the impeller-the sun wheel to rotate integrally, and the sun gear meshes with the planetary gear.

Wherein, the annular array on the impeller is provided with a plurality of blades, and the blades can drive the impeller-sun wheel to rotate.

Wherein, the outer circumference of the impeller is assembled with a pump casing at a certain distance, and a spring is disposed between each of the blades and the inner bottom surface of the corresponding cavity.

Wherein, the pump casing is provided with a medium inlet and a medium outlet.

Wherein the right pump piece is disposed between the impeller and the pump casing and the planetary ring gear and the planetary gear.

Wherein, the left tail pump piece is coaxially mounted on the shank sleeve near the position of the impeller and the pump casing.

Wherein, the longitudinal section of the planetary ring gear is a stepped structure.

Wherein the impeller, the vane, the spring, the left pump plate, the pump casing and the right pump plate constitute a vane pump.

The beneficial effects of the present application include: the hollow rotating mechanism of the blade motor driving planetary gear deceleration combination provided by the present application realizes the power transmission between the vane pump and the planetary reducer by providing an impeller-sun wheel of a hollow connecting piece And the planetary reducer drives the brazing sleeve to make the turning motion, and the impeller-sun wheel and the planetary reducer and the rotating sleeve have the same center of rotation, which shortens the transmission chain size, improves the transmission efficiency and increases the reliability. The invention reduces the size of the base structure, reduces the weight of the whole machine, is not eccentric, and is convenient for hand-held operation; meanwhile, the pressure medium of the invention can be liquid or gas, and is applicable to a wide range of applications, and also makes the invention more practical and more convenient for popularization and application. .

DRAWINGS

The accompanying drawings, which are incorporated in FIG In the drawings, like reference numerals are used to refer to the like. The drawings in the following description are some embodiments of the present application, and not all embodiments. Other figures may be obtained from those of ordinary skill in the art in light of the inventive work.

1 is a schematic structural view of a rotary structure of the present application in the background art;

2 is a schematic structural view of a hollow rotating mechanism of a blade motor driving planetary gear deceleration combination in an embodiment of the present invention;

3 is a schematic structural view of a combination of a vane pump planetary gear reducer in an embodiment of the present invention;

Figure 4 is a cross-sectional view taken along line A-A of Figure 3;

Figure 5 is a cross-sectional view taken along line B-B of Figure 3;

detailed description

The technical solutions in the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the embodiments of the present invention. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

The hollow rotating mechanism of the blade motor driving planetary gear deceleration combination according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

The embodiment of the present invention provides a hollow rotating mechanism of a blade motor driving planetary gear deceleration combination, and FIG. 2 is a structural schematic view of an embodiment of a hollow rotating mechanism of the blade motor driving planetary gear deceleration combination, and FIG. 3 is the embodiment. FIG. 4 is a cross-sectional view taken along line AA of FIG. 3, and FIG. 5 is a cross-sectional view taken along line BB of FIG. 3. Referring to FIG. 2 to FIG. 5, the vane motor drives the planetary gear. The hollow rotating mechanism of the deceleration combination comprises a shank sleeve 11 which is driven by the vane pump planetary gear reducer assembly 27 to realize a turning operation.

The vane pump planetary gear reducer assembly 27 includes a planetary carrier-trill sleeve 30 integrally connected to the outer sleeve 11 on the outer circumference of the outer sleeve 11, and the planetary carrier-tapping sleeve 30 and the tail The sleeve 11 is coaxially arranged, and the planetary carrier-the stalk sleeve 30 rotates to drive the shank sleeve 11 to rotate.

A plurality of planetary gears 36 are evenly disposed on one side of the planetary carrier-shank sleeve 30 near the edge, and each of the planetary gears 36 is rotationally coupled with the planetary carrier-tapping sleeve 30, and the planetary gear 36 rotates. Drive the planetary carrier - the shank sleeve 30 rotates.

Each of the planetary gears 36 is coaxially mounted with a planetary axle 33, and a planetary axle bearing 34 is disposed between each of the planetary gears 36 and the corresponding planetary axle 33.

One end of each of the planetary axles 33 is fixedly mounted on the planetary carrier-tapping sleeve 30, respectively, and the axis of each of the planetary axles 33 is parallel to the axis of the planetary carrier-slurry sleeve 30, respectively.

The outer portions of the plurality of planetary gears 36 are meshed with a planetary ring gear 37 having a stepped longitudinal section, and the planetary ring gears 37 are coaxially assembled with the stalk sleeve 11 via the stern sleeve right bearing 32.

One side of the planetary ring gear 37 is adjacent to the position of the right sleeve bearing 32 of the drill sleeve, and is provided with a rocker body interface side 31, and the rock drill body interface side 31 is connected to the rock drill body 28.

The impeller sleeve 11 is provided with an impeller-sun wheel 29 for driving the rotation of the planetary gear 36 at a position close to the side of the planetary carrier-tapping sleeve 30.

The impeller-sun wheel 29 is coaxially assembled with the stern sleeve 11 through an impeller-sun wheel support bearing 45, and the impeller-sun wheel support bearing 45 is used to support the rotation of the impeller-sun wheel 29, so that the layout can reduce the device Radial structure size.

The impeller-sun wheel 29 includes two parts, the two parts are integrally connected, one part is an impeller 25 for driving the impeller-sun wheel 29 to rotate integrally, and the other part is a sun wheel 26 meshing with the planetary gear 36, and the sun wheel 26 rotates. The planetary gear 36 is driven to rotate.

The annular array on the impeller 25 has a plurality of blades 40 that can drive the impeller-sun wheel 29 to rotate. Each of the blades 40 is slidably mounted in a cavity corresponding to the impeller 25 at a corresponding position.

A pump casing 39 is coaxially mounted on the outer circumference of the impeller 25 at a distance. The pump casing 39 is provided with an elliptical cavity coaxially disposed with the impeller 25, and the impeller 25 is coaxially mounted in the elliptical cavity.

A spring 41 is disposed between each of the vanes 40 and the inner bottom surface of the corresponding cavity, and each spring 41 can cause the corresponding vane 40 to rest on the inner wall of the pump casing 39.

A right pump piece 38 is disposed between the impeller 25 and the pump casing 39 and the planetary ring gear 37 and the planetary gear 36.

The left end of the left end of the left pump piece 42 is coaxially fitted with the left pump piece 42 at a position close to the side of the impeller 25 and the pump casing 39, and the left side of the left pump piece 42 is the guide sleeve interface side 43.

The plurality of blades 40 divide the space between the right pump plate 38, the left pump plate 42, the impeller 25, and the pump casing 39 into a plurality of regions equal to the number of the blades 40, and each region is separately pumped during the rotation process. The medium inlet 46 or the medium outlet 47 provided on the casing 39 communicates.

The left pump piece 42, the pump casing 39, the right pump piece 38, and the planetary ring gear 37 are respectively sealed by a seal and fixedly connected by a connecting bolt 35.

The impeller 25, the vanes 40, the spring 41, the left pump plate 42, the pump casing 39 and the right pump plate 38 constitute a vane pump.

The sun gear 26, the planet gears 36, the planetary ring gears 37, the planet gear shafts 33, the planetary axle bearings 34 and the planet carrier-slurry sleeves 30 constitute a planetary reducer.

During operation, when the pressure medium enters the vane pump through the medium inlet 46, the vane 40 is rotated to perform work, and the working medium is discharged or evacuated from the medium outlet 47, and the vane 40 drives the impeller-sun wheel 29 to rotate, and the impeller-sun wheel 29 The rotation of the planetary gear 36, the planetary carrier-squeegee sleeve 30, rotates along the fixed planetary ring gear 37, and the deceleration rotation of the planetary carrier-squeegee sleeve 30 is the rotary power of the rock drill, and the input and output ports of the exchange medium The vane pump can be reversed, and the direction of rotation of the tail sleeve 11 is also changed. The flow rate of the medium entering the vane pump, the pressure or the ratio of the number of teeth of the planetary ring gear 37 to the impeller-sun wheel 29 can be changed to change the planetary gear. The brazing speed of the frame-twin sleeve 30 and the turning torque are adapted to suit rock drilling equipment of different specifications.

The above description may be implemented individually or in combination in various ways, and these modifications are within the scope of the embodiments of the present invention.

It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply such entities or operations. There is any such actual relationship or order between them. Furthermore, the terms "comprise," "comprise," or "comprising" or "comprising" or "comprising" or "the" Or it also includes elements that are inherent to such an item or device. An element defined by the phrase "comprising", without further limitation, does not exclude the presence of additional identical elements in the item or device including the element.

The above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to be limiting, and the present application is only described in detail with reference to the preferred embodiments. It should be understood by those skilled in the art that the present invention may be modified or equivalently substituted without departing from the spirit and scope of the invention.

Industrial applicability

The embodiment of the invention realizes the power transmission between the vane pump and the planetary reducer by providing the impeller-sun wheel of a hollow joint piece, and drives the brazing sleeve through the planetary reducer to perform the brazing movement, and the impeller-sun wheel It is the same center with the rotation center of the planetary reducer and the solder tail sleeve, which shortens the transmission chain size, improves the transmission efficiency and increases the reliability; reduces the size of the base structure, reduces the weight of the whole machine, is not eccentric, and is convenient for hand-held operation; At the same time, the pressure medium of the invention can be liquid or gas, and is suitable for a wide range of applications, and also makes the invention more practical and more convenient for popularization and application.

Claims

The hollow rotating mechanism of the blade motor driving planetary gear deceleration combination comprises a shank sleeve (11) driven by the vane pump planetary gear reducer assembly (27) to realize the turning action.
A hollow rotary bending mechanism for driving a planetary gear reduction combination of a blade motor according to claim 1, wherein

The vane pump planetary gear reducer assembly (27) includes a planetary carrier-tire sleeve (30) disposed on the solder tail sleeve (11) for driving the rotation of the solder tail sleeve (11), An impeller-sun wheel (29) is disposed on the side of the shank (11) adjacent to the side of the planetary carrier-tapping sleeve (30).
The hollow rotor-rotating mechanism of the blade motor-driven planetary gear reduction combination according to claim 2, wherein

An annular array on the planetary carrier-squeegee sleeve (30) is provided with a plurality of planetary gears (36), and the planetary gears (36) can drive the planetary carrier-cylinder sleeve (30) to rotate. An impeller-sun wheel (29) is used to drive the planetary gear (36) to rotate.
The hollow rotor-rotating mechanism of the blade motor-driven planetary gear reduction combination according to claim 3, wherein

A plurality of planetary gears (36) are provided with a planetary ring gear (37), and the planetary ring gear (37) is coaxially assembled with the shank (11).
A hollow rotary bending mechanism for driving a planetary gear reduction combination of a blade motor according to claim 4, wherein

The impeller-sun wheel (29) includes an impeller (25) and a sun gear (26) for driving the impeller-sun wheel (29) to rotate integrally, the sun gear (26) and The planet gears (36) are engaged.
A hollow rotor-rotating mechanism for driving a planetary gear reduction combination of a blade motor according to claim 5, wherein

The annular array on the impeller (25) is provided with a plurality of blades (40), which can drive the impeller-sun wheel (29) to rotate.
a hollow rotary bending mechanism for driving a planetary gear reduction combination of a blade motor according to any one of claims 5 or 6, wherein

The impeller (25) is fitted with a pump casing (39) at a distance from the outer circumference, and a spring (41) is disposed between each of the blades (40) and the inner bottom surface of the corresponding cavity.
A hollow rotor-rotating mechanism for driving a planetary gear reduction combination of a blade motor according to claim 7, wherein

The pump casing (39) is provided with a medium inlet (46) and a medium outlet (47).
A hollow rotary bending mechanism for driving a planetary gear reduction combination of a blade motor according to claim 8, wherein

A right pump plate (38) is disposed between the impeller (25) and the pump casing (39) and the planetary ring gear (37) and the planetary gear (36).
A hollow rotary bending mechanism for driving a planetary gear reduction combination of a blade motor according to claim 9, wherein

A left pump plate (42) is coaxially mounted on the shank sleeve (11) adjacent to the impeller (25) and the pump casing (39).
A hollow rotary bending mechanism for driving a planetary gear reduction combination of a blade motor according to any one of claims 4 to 10, wherein

The longitudinal direction of the planetary ring gear (37) is a stepped structure.
A hollow rotor-rotating mechanism for driving a planetary gear reduction combination of a blade motor according to claim 11, wherein

The impeller (25), the vane (40), the spring (41), the left pump plate (42), the pump casing (39) and the right pump plate (38) constitute a vane pump.