SE9402006A0 - Apparatus for material removal processing of a material layer - Google Patents

Abstract

; S; OS '; 0 'se. .04o. • 41 94Do. 2 According to land technology, the movements of the radiator are controlled especially in the area of the carriage's spirit, but also in such a way that the above-mentioned irregularity with regard to machining arises. SUMMARY OF THE INVENTION The object of the present invention is to provide constructive measures for further developing the devices according to the preambles of claims 1 and 9, respectively, so that an improved uniformity is achieved with respect to the material-removing processing over the entire layer surface to be machined. This object is most closely achieved by the features defined in the country-specific parts of claims 1 and 9. By the release defined in claim 1, the uniform machining effect in the area of both carriages is achieved in that the beam is arranged to be brought into oscillating motion for rotation substantially at the same time as the carriage stops in its position, whereby the carriage is arranged so that in any case direction towards its second object only essentially at the same time as the radar ends its oscillation. In this case, the oscillation of the radiator and the movement of the carriage are carried out at such speeds that the nozzle of the radiator will move along the longitudinal direction of the guide during essentially the entire irrigation operation. The solution defined in claim 9 substantially divides the uniform machining effect on the material layer by a oscillating movement of the beam tube pA. so that its nozzle will move forward and return in a direction essentially divergent relative to the steering while the carriage moves along it. Further advantageous further developments of the inventive concept are defined in the dependent claims.

Description

NAME OF THE INVENTION "Device for material peeling processing of a material layer" APPLICANT Name and address.Aquajet Systems AB If there are no agents, also state EntBox 46 part number.

Sakes patent of Mira jointly.570NOLSBYBRUNN lame information about negon of them that designated alt barrel all oppose madde tendon Iran patent office.

If a legal entity is given an organization number. Organization number Name and address Slattgrand12 INVENTOR Carl-Gustaf Andersson 574 00VETLANDA Telephone number patent, AGENT - 1 in alit as rdr part possibly granted XSOkande authorizes the following Swedish agents through separate lullmakt.

BJERKENS PATENTBYRA AB Box 304 801 04GAVLEtfn: 026-1005 officer ref nrSE11865 tn claim to priority date, country and anstikningsnummer FOR DEPOSIT AVDeposstionsmyndoghet MICROORGANISM DepositionsclatumDepositiensnr FOR SECONDMENT ELLERStamansokningsnrBogard Ibpdag broken ANSOKNING9002724-424 Jugusti 1990 REQUEST FOR ITS _ GRANSKNINGN hats ranskninav international sla ATTACHMENTS [ 1] Description, claims and II El FutImakt summary in Ire exemplarGavle den 9'uni1994 M4ritningar i3exe, oplarOa. date EE overlatel's action copy; orig.ml.istamans. 111 Sequence list ph diskette according to EPO's program Patent InBJERKENS FATENTBYRA AB, Priority certificate 0 e, ----- r FEE. „. - „, ........: in Basic fee: SEK 1,600 Ea Diary certificate: SEK 20 0 Additional fee kir ITS • review, SEK 100, tOr PAYED uridersitra- 0 Additional fee, SEK 100 for each patent claim in excess of ten, Hx Akan -Bjer, D Basic grant for ITS review: SEK 2,000, each patent claim in excess of 10, ki.

Post +. iroill Check__I-1.60MA9t PATENT-0CH REOSTRERINGSVERKET PatErlt- nr: h 1994. -06- 1 FOrsta Poston 0 0 • 0 • • • 0 • • 0 0 • 04. • • 4141 0 • • • .0 • 0 O. 0 MO • 6. • 1.0 •• 0.6 0 • • • BJERKENS / GAVLE PA.TENTBYRA "A.13 ADDRESS: BOX 304, S-801 04 GAVLE, SWEDEN F.YRKOGATAN 24 B GAVLE TELEPHONE: 028/11 23 14 VX FAX 1: INT + 4828 14 30 45 FAX 2: INT + 48 28 10 37 60 hb / ks Applicant: Aquajet Systems AB Device for material removal of a material layer.

FIELD OF THE INVENTION AND PRIOR ART The present invention relates to a device for material removal processing of a material layer according to the preambles of subsequent claims 1 and 9. Although the layer may consist of other material, it is preferably a concrete layer. Primarily, the processing is intended to have the purpose of removing weakened material from the layer. This may involve weakening weakened concrete from the concrete layer of walls, bridges and all kinds of other building structures, after which • the degraded concrete can be replaced with a new one. High pressure% sweat is preferably made up of water. 451 742 and 461 535. Kdnd technology hdrvidiag vidlAdes av 0. • a more or less ojdmnt machining result is achieved p &. ".the concrete layer. hdr mA it is emphasized that it is essential that defective • ••. • • misk shell non-unnecessary material volumes are removed emir this • increases the cost of subsequent application of new material.

". ••• * •• ..Such devices are in eel_ ..-- ir sig kdnda. SAscm examples of.." "• • previous technology can be referred to the Swedish publications.

,; S; OS '; 0 'se. .04o. • 41 94Do. 2 According to land technology, the movements of the radiator are controlled especially in the area of the carriage's spirit, but also in such a way that the above-mentioned irregularity with regard to machining arises.

SUMMARY OF THE INVENTION The object of the present invention is to provide constructive measures for further developing the devices according to the preambles of claims 1 and 9, respectively, so that an improved uniformity is achieved with respect to the material-removing processing over the entire layer surface to be machined.

This object is most closely achieved by the features defined in the country-specific parts of claims 1 and 9.

By the release defined in claim 1, the uniform machining effect in the area of both carriages is achieved in that the beam is arranged to be brought into oscillating motion for rotation substantially at the same time as the carriage stops in its position, whereby the carriage is arranged so that in any case direction towards its second object only essentially at the same time as the radar ends its oscillation. In this case, the oscillation of the radiator and the movement of the carriage are carried out at such speeds that the nozzle of the radiator will move along the longitudinal direction of the guide during essentially the entire irrigation operation.

The solution defined in claim 9 substantially divides the uniform machining effect on the material layer by a oscillating movement of the beam tube pA. so that its nozzle will move forward and return in a direction essentially divergent relative to the steering while the carriage moves along it.

Further advantageous further developments of the inventive concept are defined in the dependent claims. • ;; • ..0. BRIEF DESCRIPTION OF THE DRAWINGS Referring to the accompanying drawings, the following is a more detailed description of an exemplary embodiment of the invention.

In the drawings, Fig. 1 is a schematic perspective view of the device according to the invention, Figs. and is viewed perpendicular to the guide, Fig. 6 is a schematic view of the radiator viewed substantially parallel to the guide, a oscillating mechanism for the radiator being indicated, and Fig. 7 is a circuit diagram.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT The inventive unit. the device comprises a carrier 1, which here has the character of vehicles movable on the surface, for example layers of concrete, which are to be machined. The vehicle is indicated hdr as being of belt type with two drive belts 2. The vehicle is as indicated by arrows 3 and 4 movable in opposite directions.

PA The vehicle 1 is provided with an elongate guide 5 and one along this guide front and rear Li: 51: 11g carriage 6, which carried a jet 7 for directing a high-pressure water jet towards the ground. The guide 5 is intended to extend at an angle to the direction of movement 3, 4 of the vehicle during operation and was preferred / As these are substantially forced. The control 5, which may have 00 .. • 90 * Pi * i; ; Ill 00 • • .011100 •• 0 0 00 060 1604ID • 0 • • • g 0 0 • • • •• • •• 00 00 • 000 It 4 karal: taren av balk, är i exemples vdsentligen rdtlinjig. Furthermore, the guide 5 forms part of a stand 8, which is mounted on the vehicle. The jet pipe 7 communicates via a line 9 with a cold supply of high-pressure water, especially water, to the jet pipe. This high-pressure head is suitably arranged on a separate carriage or the like, although it could also be arranged on the vehicle 1.

As will be described in more detail below with reference to Fig. 7, the device comprises drive means for driving the vehicle 1 in directions 3, 4, a drive means 11 for driving the carriage 6 along the guide 5 and a drive means 12 for pivoting the jet 7 around a substantially transverse guide 5. extending shaft 13 between the outer layers shown in Figs. 4 and 5. In these outer edges, a nozzle 14 of the nozzle points at an oblique angle relative to the longitudinal direction of the guide 5. In this case, the nozzle can be arranged to point obliquely either in or towards the current direction of movement of the carriage 6. The choice of the direction of inclination of the nozzle in this respect is related to the intended processing result and the nature of the material. In the description below, the operating nozzle of the jet pipe during movement of the carriage 6 along the guide 5 will continue to be treated, always pointing in the direction of movement of the carriage, regardless of which hall along the guide the carriage is currently moving.

It is appropriate that the nozzle 7 is arranged for performing a oscillating movement in the direction of movement of the bar 1, 4 around an axis • In other words, this oscillating movement is intended to take place in a plane substantially parallel to the axis of rotation 13 of the nozzle 7.

. • •. •• 'SO. • • • Ai, • • • • • •• • 0 •• • • • P. 0 0 * • A control unit 16 (Fig. 7) arranged for controlling the drive means, e.g. computer, where arranged to change the carriage 6 to a stop along the guide 5, guide the drive means 12 to pivot the jet 7 so that its nozzle during the movement of the carriage its two directions of movement will point in these directions of movement. The dndlAgen of the carriage 6 is defined by sensing means 17, •. .7: i::. . . • • • • ... •• 0 • • I 00. 8 • 4 • ow V & MOO • 0 • IPO • I • 6 • • 0 p • 4 • w • • • • • 4 II • •• • • IbIll • which is connected to the control unit 16. As indicated in Fig. 1, there is mounted on the carriage 6 an arm-like member 18 fixedly intended to cooperate with the sensing means 17.

A first 19 for the radiator tube 7 'rotates about the shaft 15 arranged on a holder 20, which in turn is rotatably arranged on the carriage 6 about the shaft 13. This means that the radiator tube 7 when rotating the holder 20 about the shaft 13 will pivot about it. later.

Drive means for effecting the oscillation of the nozzle 7 about the axis 15 comprises (Figs. 2 and 6) a motor 21 and an eccentric 22 driven by the motor. This is intended to rotate about an axis 23 and has an eccentric projection 24 relative to this axis which affects the feed 19. Further determined there at the head 19 rigidly attached a head warmer 25, which has a slot 26, in which the projection 24 engages. Thus, upon rotation of the eccentric 22, the nozzle 7 will be continued in a oscillating motion indicated by the circular bag a at a planarly forming angle, preferably substantially at right angles to the longitudinal direction of the guide 5. It is preferred that the oscillation angle α is smaller than on the other hand at least 0 and preferably at least 0. In the middle of this oscillation movement, the nozzle 7, viewed in the longitudinal direction of the guide 5, extends substantially in the normal direction towards the layer 27 to be machined.

The motor 21 is arranged on the holder 20 and also the eccentric 22 there mounted on the holder 20 in stock. It is preferred that the axis of rotation 23 of the eccentric 22 is installably arranged on the holder 20 so that the distance of the axis 23 to the pivot axis 15 can be varied. Thus, the oscillation angle will also be able to be varied.

It is preferred that the drive means 12 for pivoting the holder 20 about the shaft 13 relative to the carriage 6 is designed as a longitudinal force means acting between a point pa. the carriage 6 and a relatively eccentric point 13 on the holder 20. This: .. •: .. "." .. ::::: *. * ••• • • •• • • ••• • ••• • 4 ••• •• 6 power means is Umpligen a double-acting fluid piston-cylinder mechanism (Fig. 7).

Although other designs are possible, the drive means 11 for the movement of the carriage 6 along the guide 5 may have the character of a motor, for example a hydraulic motor, which is arranged on the carriage 6 and which drives At least one wheel or gear, which is rotatably arranged on the carriage and driving engages with the control 5.

The control unit 16 (Fig. 7) is arranged or adjustable to control the cylinder 12 to initiate pivoting of the nozzle around the shaft 13 at an angular velocity which results in a speed of movement of the nozzle 14 at substantially the same time as the carriage 6 is stopped in a first position. 5 which is substantially equal to the speed of movement of the carriage 6 along the guide, the control unit being arranged or adjustable to control the drive motor 11 of the carriage 6 to initiate the movement of the carriage towards the other end substantially while the rotation of the radiator 7 by the cylinder 12 is terminated. In other words, the nozzle 7 with its nozzle 14 will be in substantially continuous motion at the same speed along the guide 5 during the entire turning process at the end of the carriage.

The device comprises means 28 and 29 for adjusting the speed of movement of the carriage 6 and the pivoting speed of the beam 7, respectively. In the embodiment driven by means of pressure fluid, especially hydraulic fluid, as referred to in Fig. 7, these installation means 28, 29 are thought to be formed by flow regulating valves in fluid lines belonging to the engine 11 and the cylinder 12, respectively. In its own way, the pressure fluid system of Fig. 7 comprises a pump 30 which, via pressure fluid lines 31, delivers pressure fluid not only to the drive means 11 and 12 but also to the drive means 10 and 21. Also in the pressure fluid supply lines to the drive means 10 and 21 there are valves 32 and 33, respectively. by flow control it is possible to install the operating velocities of the drive means designed as pressure fluid motors O • • • ••• • • • I.

• So • • •• 1 ••• • • • • • • •• • .1 •• ••• • • • • ••• 1. • 4.11 7 21. Pressure fluid return lines from the drive means 10, 12 and 23 may in a conventional manner open into a pressure fluid tank 34, from which the pump 30 is supplied with fluid.

For each of the drive means 10, 11, 12 and 21 there are control means 35-38 with the task of starting, stopping and (in the case of all drive means except the 21 for the oscillation movement) reversing the function of the drive means. In the illustrated pressure fluid case, these control means 35-38 are constituted by fluid valves, which are schematically indicated by connections to the control unit 16 for controlling it. The speed regulating valves 32, 33 and 28 for the drive means 10, 21 and 11, respectively, can suitably be arranged in the supply lines to the latter. However, in the case of the drive means designed as a cylinder 12 for the pivot of the nozzle 7 about the axis 13, it is appropriate that in each of the working lines extending parallel between the control valve 38 and the cylinder 12 both in parallel, the previously mentioned node regulating and damned cylinders 12 longitudinal change speed regulating valve 29 and a non-return valve opening towards the cylinder 12 and the respective working chamber, which meant that the node control and clamed speed control will take place at the Nile occasion as a return line acting on the lines between the control valve 38 and the cylinder 12.

The control unit 16 includes a suitably installable time travel means for delaying the carriage's motion initiation towards the second stop by the carriage after a first stroke by a time corresponding to the time of oscillation of the nozzle by means of the drive means 12 from one of its outer parts.

From what has been said, it appears that the control unit 16 is intended to contain a control program in which the operator can choose the time delay of the device to be equal to the time consumption for the oscillation of the beam tube and also equal to the standstill time of the carriage 6 when a petition is reached. 8 The control unit 16 is arranged to control the drive means 10 for movement via the control means / valves to move an installed straight flax trolley 6 flax one of its surfaces. The speed of this movement is determined by the control means / valve 32. To define the unallocated movement distance, the control unit 16 contains an operable time which can be installed by the operator, so that this time determines the time during which the drive means 10 operate and the distance down. For each of the drive means 10 there is a separate control means 35, the operator can, if necessary, adjust the direction of the vehicle 1 by momentarily actuating only one of the drive means 10.

Figures 4 and 5 show that the beam tube 7, viewed parallel to its pivot axis 13, is capable of pivoting angles b in opposite directions from a central layer, in which the beam is aligned as a normal to the surface to be machined. The angle b is preferably a maximum of °, meaning that the total oscillation of the radiating tube comprises a maximum of 60 ° in total.

The described device operates as follows: Depending on the current operating conditions, the operator determines by means of the installation means 32 the speed of the movement of the vehicle 1. By time installation of the duration of this movement in the control unit 16, the resulting movement distance can be determined. By means of the installation means 33, the operator determines the oscillation speed of the nozzle 7. Furthermore, the operator determines by means of the installation means 28 the movement speed of the carriage 6. Thereafter, the operator determines by means of the installation means 29 the angular velocity of the pivoting movement of the radiator wire so that the nozzle 14 will move at substantially the same speed along the guide 5 as the moving speed of the carriage 6. Most recently, the operator installs the said time delay means so that the movement of the carriage 6 along the guide 5 is not substantially initiated at the same time as the oscillation of the beam guide 7 about the shaft 13 is terminated. •••; • w1 • 91.9 50 • ••• '. 9 After these installations, the following function is obtained: When the carriage 6 moves in the direction of one abutment according to the arrow 39 in Figs. 2 and 4, the nozzle 7 will oscillate about the axis 15 while the nozzle is stationary with respect to the shaft 13 i. sloping layer will point in the direction of movement of the trolley 39. The nozzle 14 ..will thereby sweep the base surface to be machined pg. As indicated in Fig. 2. When the carriage 6 reaches its one end, it is stopped via the control unit 16, which at the same time via the control means 35 arranges for the movement of the vehicle 1 the installed distance and via the control means 38 of the radius between the layers in Figs. 2 and 3. During the entire oscillation of the radius 7 pcs. the trolley 6 is still and only substantially at the same time as the beam ends its irrigation, the control unit 16 activates the trolley 6 for movement towards the second stop (arrow 40 in fig. 3). This meant that the habit of moving the nozzle 14 in the direction of either of the arrows 39 and 40 will be composed partly of the pivoting movement of the jet tube 7 and partly of the movement of movement of the carriage 6. In Fig. 3, a solid line schematically indicates the path of movement of the nozzle 14 described during the movement in the direction of the arrow 39, while dashed lines illustrate the path of movement of the nozzle 14 described during the movement in the direction of the arrow 10.

The oscillation of the beam tube 7 about the axis 15 in combination with the inclination of the beam tube towards the surface to be machined around the shaft 13 entails a particular function even in heavy work tasks, such as the removal of concrete around reinforcing bars existing in the concrete layer. Under reasonable conditions, it will of course be possible to install the control unit 16 so that the vehicle 1 is not moved to a greater extent than the radiator 7 crossing the same surface At least twice with the radiator different installation layers around the shaft 13.

It is a given that the invention is merely limited to the embodiment described. The carrier 1, for example, does not necessarily have to be a vehicle, but could instead have the character of a carriage movable along a suitably arranged position. Furthermore, the device is not limited to machining horizontal surfaces, but it can also be oriented for machining vertical or inclined surfaces. The guide 5 does not necessarily have to be rectilinear but could, for example, be curved corresponding to the curvature of a surface to be machined. If the conditions require, the guide 5 could otherwise be adjustable at acute angles relative to the normal direction of movement of the carrier 1. It has been described how the attachment of the carriage 6 after stopping in a ditch by means of a time delay means is delayed until the radiator tube 7 has completed its oscillation in and before turning. As an alternative to this, it would be possible to provide additional sensing means which react when the beam reaches its outer curves and thereby provide information to the control unit 16, in response to the scissors: This information immediately ignites the movement of the carriage 6. Other guiding principles could also be used here. Finally, it should be noted that for certain tasks, it is appropriate for the nozzle 7 to be oriented so that its nozzle 14 points in the direction of a normal to the surface to be machined, viewed parallel to the axis 13. The control unit 16 is consequently arranged to allow adjustment of a shaft at strAlroret. For a good machining function, however, even a shdant ldge requires oscillation of the steal tube around the shaft 15. Other modifications are also possible within the scope of the inventive concept.

Pt. 11

Claims (6)

Claim 1. Device for material-peeling processing of a material layer, in particular a concrete layer, which device comprises a carrier (1), a guide (5) arranged on the carrier, a carriage along the front and another carriage (6), which carried a beam. (7) is directed to direct a high pressure water jet onto the material layer, a means for supplying high pressure water to the jet, at least one first drive means (10) for driving the bar in a direction perpendicular to the guide, at least one second drive means (11) for driving the carriage along the guide, at least a third drive means (12) for pivoting the nozzle about an axis (13) extending at an angle to the guide between the outer members, in which a nozzle (14) of the nozzle points obliquely in or against the direction of movement of the carriage, and a control of the drive means arranged control unit (16), which is arranged to when the carriage at night a andldge along the control control the third drive means (12) to pivot the nozzle (7) so that its nozzle with the hood The same inclination points in the longitudinal direction of the guide during movement of the carriage in its two directions of movement, characterized in that the control unit (16) is arranged or adjustable to control the third drive means (12) substantially at the same time as the carriage (6) is stopped in a first position. initiate pivoting of the nozzle (7) at an angular velocity which results in a speed of movement has the nozzle (14) along the guide (5) which is substantially equal to the speed of movement of the carriage along the guide, the control unit (16) being arranged or adjustable to steer the carriage to initiate its movement towards the second abutment substantially at the same time as the oscillation of the radiator rudder is terminated, and wherein the radiator rudder (7) is arranged to perform a oscillating movement in a plane substantially parallel to the radiating axis (13) of the radiator rudder. Device according to claim 1, characterized in that it comprises means (28, 29) for installing the movement speed of the carriage (6) and the oscillation speed of the jet tube (i). Device according to claim 1, characterized in that the control unit (16) is arranged to control the fourth drive means (21) to cause the nozzle to oscillate during the oscillation of the nozzle as well as during the movement of the carriage. Device according to any one of the preceding claims, characterized in that the control unit (16) contains a suitably installable time delay means that when the carriage at a first stop the carriage delays the movement initiation of the carriage towards the second stop with a time corresponding to the time of the radiator swing. Device according to any one of the preceding claims, characterized in that the spirit of the carriage is defined by sensing means (17) connected to the control unit (16), and that the control unit is arranged to control the oscillation of the nozzle on the basis of information from the sensing means. Device according to Claim 1 or 3, characterized in that a fastening (19) for the radiator tube (7) is pivotally arranged on a holder (20), which in turn is pivotally arranged on the carriage (6). Device according to claims 3 and 6, characterized in that the fourth drive means are arranged on the holder (20) and comprise a motor (21) and an eccentric (22) driven by the motor, which influences the fastener. • ••• 1. •• pp. •. ; ••• 1 ••• 0 • •• •• •••••••••• 2. •• 3. 4 •• •• • 4. • 5. • • • 6. • • 111 •••• •• • ••• lodge 13 An apparatus for machining a concrete layer with water training comprises a beam (7) arranged on one along a guide (5) forward and, after a movable carriage ( 6). The beam tube (7) is pivotable about an axis (13) substantially parallel to the guide (5) and northward to pend about an axis (15) at a plane angled to the guide. During the movement of the carriage (6), the guide (5) is extended along the radiator tube (7) in one direction along the extension of the guide (5). A control unit ensures that at the same time as the carriage (6) is stopped in a single position, pivoting of the nozzle (7) is initiated at an angular velocity which entails movement of a nozzle of the nozzle along the guide (5) at a speed substantially equal to the movement speed of the carriage (6). The control unit is further arranged to start the movement of the carriage (6) when the steering gear (7) has finished its movement.