CN113700767B

CN113700767B - Wear compensation device of clutch actuator

Info

Publication number: CN113700767B
Application number: CN202111029288.1A
Authority: CN
Inventors: 范星星
Original assignee: Changchun East Clutch Co ltd Suzhou R & D Center
Current assignee: Changchun East Clutch Co ltd Suzhou R & D Center
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2023-03-24
Anticipated expiration: 2041-09-02
Also published as: CN113700767A

Abstract

The invention provides a wear compensation device of a clutch actuator, which comprises a clutch plate, wherein a connecting shaft sleeve is fixedly arranged on the clutch plate and used for connecting a crankshaft of the clutch and an input shaft, an installation groove is arranged in the connecting shaft sleeve, and the section of the installation groove is approximately hexagonal; the device comprises a pressure plate, a plurality of push pieces, a plurality of protective blocks and a compensation spring, wherein a working groove is formed in the pressure plate, the push pieces are uniformly arranged on the inner side of the pressure plate and are distributed in a circular shape, round holes for mounting an input shaft are reserved among the push pieces, a pressing block is arranged on the other side of the push pieces, a groove is formed in the pressing block, a telescopic cylinder is arranged in the groove and used for pushing a buffer plate to move in the groove, the protective blocks are further arranged in the groove, and the compensation spring is arranged between the protective blocks and the buffer plate; the surface of the input shaft is provided with a plurality of convex blocks used for being connected with the connecting shaft sleeve; and the actuating mechanism is arranged on the input shaft and is used for operating the clutch to connect and disconnect torque transmission.

Description

Wear compensation device of clutch actuator

Technical Field

The invention belongs to the technical field of clutches, and particularly relates to a wear compensation device of a clutch actuator.

Background

The clutch is an important part in mechanical transmission, is generally installed between a power machine and a transmission mechanism thereof and is used for connecting or separating the power machine and an actuating mechanism, the clutches are various, the clutches used by motor vehicles are mostly of a friction type, namely, power is transmitted by virtue of friction force between a pressure plate and a friction plate of the clutch, equipment wear compensation refers to that the original value of equipment is reduced after the equipment is worn, and equipment wear compensation is required to be carried out so as to recover the due productivity of the equipment.

For example, a publication No. CN106050964A discloses a worm-and-gear clutch actuator, which comprises a clutch plate, a clutch hub, a pressure plate, a worm gear, a worm, and a non-rotating disk; the clutch hub and the pressure plate are both fixed relative to the output shaft, the clutch plate and the input shaft are fixed relative to each other, the worm wheel and the input shaft are fixed relative to each other in the axial direction of the input shaft, and the pressure plate and the clutch plate are separated or combined along the axial directions of the input shaft and the output shaft; the non-rotating disc and the pressure plate are relatively fixed; the worm wheel is meshed with the worm; the non-rotating disc is arranged opposite to the worm wheel, the opposite surfaces of the non-rotating disc and the worm wheel are provided with inclined chute grooves which correspond to each other, and one end of each inclined chute groove is changed from deep to shallow; balls are arranged in the ramp grooves; the diameter of the ball is not less than the maximum distance between the bottoms of the corresponding chutes, so that energy can be saved, and component aging caused by continuous power drive of the clutch component can be avoided.

The publication No. CN112145571A discloses a vehicle clutch capable of automatically compensating abrasion, which comprises a flywheel, a gland, a pressure plate, a crimping spring, a diaphragm spring and a clutch plate, wherein the clutch plate comprises a support plate, a compensation driving set and a connecting sleeve, the connecting sleeve sequentially penetrates through the flywheel, the support plate, the pressure plate, the diaphragm spring and the center of the gland, at least three groups of compensation cavities are arranged on the outer ring of the support plate, a screw rod is driven in each compensation cavity through a first micro motor, a driving block is connected with the outer thread of the screw rod, inclined planes in mirror image arrangement are arranged on two sides of the driving block, a first friction plate and a second friction plate which vertically extend into the compensation cavities are arranged on two sides of the support plate, inclined slide blocks which are in inclined sliding connection with the inclined planes are further arranged on the inner sides of the first friction plate and the second friction plate, the outer side of the first friction plate is abutted to one side of the flywheel, and the outer side of the second friction plate is abutted to one side of the pressure plate.

The clutch automatically compensates the abrasion loss through the screw rod and the friction plate in the compensation cavity, is suitable for the clutch adopting a rod system transmission device, and the inhaul cable is abraded along with the change of the service time when the inhaul cable structure is adopted between the clutch actuating mechanism and the clutch pedal.

Disclosure of Invention

The present invention is directed to a wear compensation device for a clutch actuator, which solves the problems of the prior art.

The invention provides the following technical scheme:

the wear compensation device of the clutch actuator comprises a clutch plate, wherein a connecting shaft sleeve is fixedly mounted on the clutch plate and used for connecting a clutch crankshaft and an input shaft, a mounting groove is formed in the connecting shaft sleeve, and the section of the mounting groove is approximately hexagonal.

Further, the pressure disk, be equipped with the work groove on it, a plurality of kickers are evenly installed to the pressure disk inboard, a plurality of kickers are circular distribution, and leave the round hole that is used for installing the input shaft between a plurality of kickers, the briquetting is installed to the kicker opposite side, briquetting movable mounting is inboard at the pressure disk, be equipped with two recesses in the briquetting, install telescopic cylinder in the recess, the buffer board is installed at telescopic cylinder opposite side, telescopic cylinder promotes the buffer board and removes in the recess, still install the protection piece in the recess, install compensating spring between protection piece and the buffer board.

Furthermore, the surface of the input shaft is provided with a plurality of convex blocks used for being connected with the connecting shaft sleeve, one end of the input shaft is positioned in the mounting groove, and the section of the input shaft positioned in the mounting groove is approximately hexagonal; and the actuating mechanism is arranged on the input shaft and is used for operating the clutch to connect and disconnect torque transmission, and a cable control mechanism is adopted between the actuating mechanism and the clutch pedal.

Furthermore, the clutch crankshaft is installed on a flywheel, and a cavity for accommodating the clutch plate is arranged on the flywheel.

Further, briquetting one side is equipped with the concave surface, and the push jack is located the briquetting and has one side of concave surface, is equipped with the mounting hole on the pressure disk, passes the mounting hole through bolt construction and fixes on the briquetting with the push jack, and the push jack is irregular shape, and the push jack top is installed on the briquetting surface through the bolt, and when pressing the push jack bottom through actuating mechanism, the briquetting removed to the pressure disk inner wall direction along with the push jack top.

Furthermore, the friction plate is installed on the other side of the protection block, when the pressing block moves towards the direction of the clutch plate, the telescopic cylinder firstly pushes the protection block out to contact the clutch plate, and the friction force between the pressing block and the clutch plate is reduced.

Furthermore, the actuating mechanism comprises a fixed disc and an actuating plate, the fixed disc is rotatably connected with the input shaft, a channel for mounting the actuating plate is arranged at the bottom end of the fixed disc, the guide rods are fixedly mounted in the channel, connecting plates are symmetrically mounted on the actuating plate, displacement grooves are formed in the connecting plates, the guide rods penetrate through the displacement grooves, and the actuating plate moves relative to the fixed disc through external force.

Further, install cable control mechanism between execution board and the clutch pedal, cable control mechanism includes cable, spring, installs the compensating pipe that is used for reducing the cable wearing and tearing on the cable, and movable mounting has reverser plate and forward board in the compensating pipe, installs the transfer line between reverser plate and the forward board.

Furthermore, transfer line one end is rotated and is connected on the back plate, and the transfer line other end passes the forward board, threaded connection between transfer line and the forward board, and the transfer line is located the diameter that forward board one side is greater than transfer line and back board link, still is equipped with the holding tank that is used for the cable to pass through on the transfer line.

Furthermore, a connecting spring is arranged on one side, away from the reverse plate, of the forward plate, the connecting spring is connected with the clutch pedal, and the elastic force of the connecting spring is smaller than that of a spring connected with the inhaul cable.

Furthermore, a locking mechanism is further installed in the reversing plate and used for tightly holding a pull rope penetrating through the reversing plate.

The invention has the beneficial effects that:

1. install telescopic cylinder, protection piece in the briquetting, realize input shaft and clutch crankshaft disconnection through briquetting extrusion clutch piece, in order to reduce the wearing and tearing of briquetting, when the briquetting removed to the clutch piece, telescopic cylinder released the recess with the protection piece, and the friction disc contacts the clutch piece earlier, reduces the wearing and tearing of briquetting and clutch piece.

2. Still install the buffer board between protection piece and the telescopic cylinder, install compensation spring on the buffer board, reduce the impact force of protection piece.

3. The connecting spring is connected with the clutch pedal, so that the clutch pedal is prevented from directly controlling the inhaul cable, the locking mechanism holds the inhaul cable tightly, and the inhaul cable moves along with the locking mechanism to play a role in abrasion compensation on the inhaul cable connection.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic diagram of the structure of the briquetting of the present invention;

FIG. 3 is a schematic view of the actuator configuration of the present invention;

FIG. 4 is a left side view of the connecting sleeve of the present invention;

FIG. 5 is a schematic front view of the compensating pipe of the present invention;

fig. 6 is a left side view of the locking mechanism of the present invention.

Labeled as: 1. a clutch crankshaft; 2. a flywheel; 3. briquetting; 301. a friction plate; 302. a compensation spring; 303. a protection block; 304. a groove; 305. a buffer plate; 306. a telescopic cylinder; 4. a clutch plate; 5. mounting grooves; 6. a working groove; 7. an actuator; 701. a guide bar; 702. a connecting plate; 703. fixing the disc; 704. a displacement slot; 705. an execution plate; 8. connecting the shaft sleeve; 9. pushing the sheet; 10. an input shaft; 11. a cavity; 12. a platen; 13. a compensating tube; 14. a connecting spring; 15. a cable; 16. accommodating grooves; 17. a reversing plate; 18. a forward plate; 19. a locking mechanism; 20. and a transmission rod.

Detailed Description

As shown in fig. 1 and 6, an abrasion compensating device for a clutch actuator includes a clutch plate 4, a coupling sleeve 8 fixedly mounted on the clutch plate 4 for coupling a clutch crankshaft 1 and an input shaft 10, a mounting groove 5 provided in the coupling sleeve 8, the section of the mounting groove 5 being approximately hexagonal, the clutch crankshaft 1 being mounted on a flywheel 2, a cavity 11 provided on the flywheel 2 for accommodating the clutch plate 4, an input shaft 10 having a plurality of protrusions for coupling with the coupling sleeve 8, one end of the input shaft 10 being located in the mounting groove 5, and the section of the input shaft 10 located in the mounting groove 5 being approximately hexagonal.

The clutch crankshaft 1 is installed on the flywheel 2, the clutch crankshaft 1 rotates along with the flywheel 2, the clutch disc 4 is installed in an accommodating cavity 11 of the flywheel 2, the clutch disc 4 and the flywheel 2 rotate together through external force, the input shaft 10 is installed in the installation groove 5 in the connecting shaft sleeve 8, the cross section of the joint of the installation groove 5 and the input shaft 10 is approximately hexagonal, and the input shaft 10 can rotate along with the clutch disc 4 conveniently.

Pressure disk 12, be equipped with work groove 6 on it, a plurality of kickers 9 are evenly installed to pressure disk 12 inboard, a plurality of kickers 9 are circular distribution, and leave the round hole that is used for installing input shaft 10 between a plurality of kickers 9, briquetting 3 is installed to kicker 9 opposite side, 3 movable mounting of briquetting are in pressure disk 12 inboard, be equipped with two recesses 304 in the briquetting 3, install telescopic cylinder 306 in the recess 304, buffer board 305 is installed at telescopic cylinder 306 opposite side, telescopic cylinder 306 promotes buffer board 305 and removes in recess 304, still install protection piece 303 in the recess 304, install compensating spring 302 between protection piece 303 and the buffer board 305.

Briquetting 3 one side is equipped with the concave surface, and push jack 9 is located briquetting 3 one side that has the concave surface, is equipped with the mounting hole on the pressure disk 12, passes the mounting hole through bolt construction and fixes on briquetting 3 with push jack 9, and push jack 9 is irregular shape, and the bolt is passed through on the top of push jack 9 and is installed on briquetting 3 surfaces, when pressing push jack 9 bottom through actuating mechanism 7, and briquetting 3 removes to pressure disk 12 inner wall direction along with push jack 9 top.

The working groove 6 on the pressure plate 12 is convenient for the input shaft 10 to pass through, and the actuating mechanism 7 is convenient for to work simultaneously, and the bolt fastening is passed through on briquetting 3 on the 9 tops of push jack, and the concave surface of bolt with pressure plate 12, push jack 9 and briquetting 3 links together, has certain clearance between the concave surface of push jack 9 and briquetting 3, and briquetting 3 movable mounting is on pressure plate 12, bolt and briquetting 3 swing joint on the concave surface of briquetting 3.

The friction plate 301 is installed on the other side of the protection block 303, when the pressing block 3 moves towards the direction of the clutch plate 4, the telescopic cylinder 306 firstly pushes the protection block 303 out to contact the clutch plate 4, and the friction force between the pressing block 3 and the clutch plate 4 is reduced.

Install telescopic cylinder 306 in the briquetting 3, protection piece 303, through briquetting 3 extrusion clutch disc 4 realization input shaft and clutch crankshaft disconnection, in order to reduce the wearing and tearing of briquetting 3, when briquetting 3 removed to clutch disc 4, telescopic cylinder 306 released recess 304 with protection piece 303, friction disc 301 contacts clutch disc 4 earlier, clutch disc 4 is rotatory rather than producing frictional force, reduce the wearing and tearing of briquetting 3 and clutch disc 4, still install buffer plate 305 between protection piece 303 and the telescopic cylinder 306, install compensating spring 302 on the buffer plate 305, reduce the impact force of protection piece 303.

The actuating mechanism 7 is arranged on the input shaft 10 and used for operating the clutch to connect and disconnect torque transmission, the actuating mechanism 7 comprises a fixed disc 703 and an actuating plate 705, the fixed disc 703 is rotatably connected with the input shaft 10, a channel for installing the actuating plate 705 is arranged at the bottom end of the fixed disc 703, a guide rod 701 is fixedly arranged in the channel, connecting plates 702 are symmetrically arranged on the actuating plate 705, displacement grooves 704 are arranged on the connecting plates 702, the guide rod 701 penetrates through the displacement grooves 704, and the actuating plate 705 moves relative to the fixed disc 703 through external force.

Install cable control mechanism between execution board 705 and the clutch pedal, cable control mechanism includes cable 15, a spring, install the compensating pipe 13 that is used for reducing cable 15 wearing and tearing on the cable 15, cable among the cable control mechanism needs to be fixed through mechanical structure, however along with there is wearing and tearing between the use cable of clutch and the mechanical structure, compensate the wearing and tearing of cable through installing compensating pipe 13 at the cable outer lane, movable mounting has reverse board 17 and forward board 18 in the compensating pipe 13, install transfer line 20 between reverse board 17 and the forward board 18.

One end of the transmission rod 20 is rotatably connected to the reverse plate 17, the other end of the transmission rod 20 penetrates through the forward plate 18, the transmission rod 20 is in threaded connection with the forward plate 18, the diameter of the transmission rod 20, which is located on one side of the forward plate 18, is larger than that of the connecting end of the transmission rod 20 and the reverse plate 17, and the transmission rod 20 is further provided with an accommodating groove 16 for the stay cable 15 to pass through.

The connecting spring 14 is arranged on one side, away from the reverse plate 17, of the forward plate 18, the connecting spring 14 is connected with the clutch pedal, the elastic force of the connecting spring 14 is smaller than that of the spring connected with the inhaul cable 15, the locking mechanism 19 is further installed in the reverse plate 17, and the locking mechanism 19 is used for tightly holding the inhaul cable 15 penetrating through the reverse plate 17.

When the clutch pedal is stepped on, the connecting spring 14 is pulled to move the forward plate 18 rightwards (the pulling force of the pull cable 15 is reduced), at the moment, the transmission rod 20 rotates and pushes the reverse plate 17 away from the position of the forward plate 18, the pull cable 15 is tightly held by the locking mechanism positioned in the reverse plate 17 while the reverse plate 17 moves, the pull cable 15 moves along with the reverse plate 17, at the moment, the pulling force of the pull cable 15 on the execution plate 705 is reduced, the execution plate 705 presses the bottom end of the push plate 9, the top end of the push plate 9 moves towards the execution mechanism 7, the clutch plate 4 is separated from the flywheel 2, and otherwise, the clutch plate 4 rotates along with the flywheel 2.

The working principle of the invention when in use is as follows: when the clutch pedal is stepped, the telescopic cylinder 306 receives a signal to push the protection block 303 out of the groove 304, and the friction plate 301 is in contact with the clutch plate 4; meanwhile, the connecting spring 14 is pulled to move the forward plate 18 to the right, and the transmission rod 20 rotates reversely to push the reverse plate 17 away from the forward plate 18; when the reversing plate 17 starts to move, the locking mechanism 19 holds the inhaul cable 15 tightly; the guy cable 15 is far away from the forward plate 18 along with the reverse plate 17; the pulling force on the execution plate 705 is reduced and moves towards the push plate 9, the execution plate presses the bottom end of the push plate 9, the pressing block 3 moves towards the clutch plate 4, and the clutch plate 4 stops rotating.

Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wear compensation device for a clutch actuator, comprising,

the clutch disc (4) is fixedly provided with a connecting shaft sleeve (8) and used for connecting a clutch crankshaft (1) and an input shaft (10), an installation groove (5) is formed in the connecting shaft sleeve (8), and the section of the installation groove (5) is approximately hexagonal;

the pressing plate (12) is provided with a working groove (6), a plurality of push sheets (9) are uniformly arranged on the inner side of the pressing plate (12), the push sheets (9) are distributed in a circular shape, round holes for installing an input shaft (10) are reserved among the push sheets (9), a pressing block (3) is arranged on the other side of each push sheet (9), the pressing block (3) is movably arranged on the inner side of the pressing plate (12), two grooves (304) are formed in the pressing block (3), telescopic cylinders (306) are arranged in the grooves (304), a buffer plate (305) is arranged on the other side of each telescopic cylinder (306), the telescopic cylinders (306) push the buffer plate (305) to move in the grooves (304), protection blocks (303) are further arranged in the grooves (304), and compensation springs (302) are arranged between the protection blocks (303) and the buffer plate (305);

the surface of the input shaft (10) is provided with a plurality of convex blocks used for being connected with the connecting shaft sleeve (8), one end of the input shaft (10) is positioned in the mounting groove (5), and the section of the input shaft (10) positioned in the mounting groove (5) is approximately hexagonal;

the actuating mechanism (7) is arranged on the input shaft (10) and is used for operating the clutch to connect and disconnect torque transmission, and a stay cable control mechanism is adopted between the actuating mechanism (7) and a clutch pedal;

the actuating mechanism (7) comprises a fixed disc (703) and an actuating plate (705), the fixed disc (703) is rotatably connected with the input shaft (10), a channel for mounting the actuating plate (705) is arranged at the bottom end of the fixed disc (703), a guide rod (701) is fixedly mounted in the channel, connecting plates (702) are symmetrically mounted on the actuating plate (705), a displacement groove (704) is formed in the connecting plate (702), the guide rod (701) penetrates through the displacement groove (704), and the actuating plate (705) moves relative to the fixed disc (703) through external force;

install cable control mechanism between execution board (705) and the clutch pedal, cable control mechanism includes cable (15), spring, installs compensating pipe (13) that are used for reducing cable (15) wearing and tearing on cable (15), and movable mounting has reverse board (17) and forward board (18) in compensating pipe (13), installs transfer line (20) between reverse board (17) and forward board (18).

2. Wear compensation device for a clutch actuator according to claim 1, characterized in that the clutch crankshaft (1) is mounted on a flywheel (2), the flywheel (2) being provided with a cavity (11) for accommodating the clutch disc (4).

3. The wear compensation device of the clutch actuator according to claim 1, wherein a concave surface is provided on one side of the pressing block (3), the push plate (9) is located on the side of the pressing block (3) with the concave surface, a mounting hole is provided on the pressure plate (12), the push plate (9) is fixed on the pressing block (3) by passing through the mounting hole and the push plate (9) through a bolt structure, the push plate (9) is irregular, the top end of the push plate (9) is mounted on the surface of the pressing block (3) through a bolt, and when the bottom end of the push plate (9) is pressed by the actuator (7), the pressing block (3) moves along with the top end of the push plate (9) towards the inner wall of the pressure plate (12).

4. The wear compensation device of a clutch actuator according to claim 1, wherein a friction plate (301) is installed on the other side of the protection block (303), and when the pressing block (3) moves towards the clutch plate (4), the telescopic cylinder (306) pushes the protection block (303) out to contact the clutch plate (4) so as to reduce the friction force between the pressing block (3) and the clutch plate (4).

5. The wear compensation device of a clutch actuator according to claim 1, characterized in that one end of the transmission rod (20) is rotatably connected to the reverse plate (17), the other end of the transmission rod (20) penetrates through the forward plate (18), the transmission rod (20) is in threaded connection with the forward plate (18), the diameter of the transmission rod (20) on one side of the forward plate (18) is larger than that of the connection end of the transmission rod (20) and the reverse plate (17), and a containing groove (16) for the cable (15) to pass through is further formed in the transmission rod (20).

6. Wear compensation device for a clutch actuator according to claim 1, characterized in that the side of the forward plate (18) facing away from the counter plate (17) is provided with a coupling spring (14), the coupling spring (14) being coupled to the clutch pedal, and the coupling spring (14) having a spring force which is smaller than the spring force of the coupling spring (15).

7. Wear compensation device for a clutch actuator according to claim 5, characterized in that a locking mechanism (19) is also mounted in the counter plate (17), the locking mechanism (19) being intended to grip a cable (15) passing through the counter plate (17).