CN216078076U

CN216078076U - Novel incremental type self-adjusting brake for forward clearance

Info

Publication number: CN216078076U
Application number: CN202121935735.5U
Authority: CN
Inventors: 杨艳红
Original assignee: Wuxi Jinghua Auto Brake Co ltd
Current assignee: Wuxi Jinghua Auto Brake Co ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-03-18
Anticipated expiration: 2031-08-18

Abstract

The utility model discloses a novel incremental type self-adjusting brake for an advancing gap, which comprises a bottom plate, a driving air cylinder, a supporting plate, a U-shaped block and brake shoes, wherein two round pins are symmetrically arranged in the U-shaped block, the annular side surfaces of the two round pins are respectively provided with the brake shoes, one end of each brake shoe is attached to the driving air cylinder, one end of each brake shoe extends into the supporting plate, a friction plate is fixedly arranged at the top end of each brake shoe, the front end of the supporting plate is symmetrically and fixedly provided with two first tension springs, the other end of each first tension spring is fixedly arranged on each brake shoe, and a second tension spring is fixedly arranged between the two brake shoes. According to the utility model, the conical plate pushes the bearing seat to further change the positions of the brake shoe and the friction plate, the two-way screw rod rotates to drive the inclined block to move and extrude the T-shaped square rod, so that the T-shaped square rod is attached to the first rack to fix the first rack, and the bearing seat is pushed to move and reset in a reverse direction through the elasticity of the T-shaped guide rod and the second spring.

Description

Novel incremental type self-adjusting brake for forward clearance

Technical Field

The utility model relates to the technical field of brakes, in particular to a novel incremental advancing clearance self-adjusting brake.

Background

The brake is a device with the functions of decelerating, stopping or keeping a moving part in a stopped state, and the like, is a mechanical part for stopping or decelerating the moving part in machinery, is commonly called as a brake or a brake, and mainly comprises a braking frame, a braking part, an operating device and the like.

The brake used at present has certain defects, and a convenient fine adjustment mechanism of a brake shoe is lacked, so that the positions of the brake shoe and a friction plate are inconvenient to adjust, and the friction plate can not effectively perform friction braking on a wheel hub, therefore, the novel incremental advancing gap self-adjusting brake is very necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a novel incremental advancing clearance self-adjusting brake.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a novel incremental type self-adjusting brake for forward clearance comprises a bottom plate, a driving cylinder, a supporting plate, a U-shaped block and a brake shoe, wherein the driving cylinder, the supporting plate and the U-shaped block are fixedly installed at the top end of the bottom plate from back to front in sequence, two round pins are symmetrically installed in the U-shaped block, the brake shoe is installed on each of the two annular side surfaces of the round pins, one end of the brake shoe is attached to the driving cylinder, one end of the brake shoe extends into the supporting plate, a friction plate is fixedly installed at the top end of the brake shoe, two first tension springs are symmetrically and fixedly installed at the front end of the supporting plate, the other end of each first tension spring is fixedly installed on the brake shoe, a second tension spring is fixedly installed between the two brake shoes, a rectangular groove is formed in the bottom end of the U-shaped block, a first spring is fixedly installed at the bottom end of the rectangular groove, and a first rack is fixedly installed at the top end of the first spring, two bearing frames of inside symmetry slidable mounting of rectangular channel, the round pin rotates and installs on the bearing frame top, the round pin top is laminated with the inside top of U type piece mutually, bearing frame bottom fixed mounting has rack two, and two bottoms of rack mesh mutually with a rack top, the inside slidable mounting of rectangular channel has the conical plate, and the conical plate rear end laminates with two bearing frames respectively mutually, U type piece front end fixed mounting has electric putter, and the electric putter rear end passes U type piece and fixed mounting at the conical plate front end, the conical plate is located a rack upside.

As a further scheme of the utility model, the front end of the bearing seat is provided with an inclined plane, the conical plate is attached to the bearing seat through the inclined plane, the inclined plane is uniformly provided with more than two ball grooves, balls are arranged in the ball grooves in a rolling manner, and the spherical side surfaces of the balls are attached to the rear end of the conical plate.

As a further scheme of the utility model, the left and right ends of the U-shaped block are symmetrically provided with T-shaped guide rods, one end of each T-shaped guide rod extends into the rectangular groove and is fixedly mounted on the bearing block, the outer side of the annular side surface of each T-shaped guide rod is provided with a second spring, and two ends of each second spring are fixedly mounted on the T-shaped guide rod and the U-shaped block respectively.

As a further scheme of the utility model, a T-shaped square rod is slidably mounted on the front side of the bottom end of the bottom plate, a third spring is symmetrically mounted on the T-shaped square rod, the top end of the third spring is fixedly mounted at the bottom end of the bottom plate, and the top end of the T-shaped square rod extends into the rectangular groove and is attached to the bottom end of the first rack.

As a further scheme of the utility model, the bottom end of the bottom plate is fixedly provided with a U-shaped frame, a bidirectional screw rod is rotatably arranged in the U-shaped frame, the right end of the U-shaped frame is fixedly provided with a micro motor, and the right end of the bidirectional screw rod is fixedly arranged on the micro motor.

As a further scheme of the utility model, two inclined blocks are symmetrically arranged on the annular side surface of the bidirectional screw, and one end of each inclined block is respectively attached to the left end and the right end of the T-shaped square rod.

As a further scheme of the utility model, threaded holes are formed in one ends of the two inclined blocks, the spiral directions of threads in the two threaded holes are opposite, and the inclined blocks are arranged on the bidirectional screw rod through the threaded holes.

As a further scheme of the utility model, the miniature bearings are symmetrically and fixedly installed at the left end and the right end of the annular side surface of the bidirectional screw, and the outer sides of the miniature bearings are fixedly installed inside the U-shaped frame.

The utility model has the beneficial effects that:

1. the bearing seats are pushed by the tapered plates, the positions of the bearing seats and the brake shoes are changed, the tapered plates are pushed to move by the electric push rods, the tapered plates move to extrude the two bearing seats, the two bearing seats are enabled to move outwards respectively, and then the round pins are driven to move, the positions of the brake shoes and the friction plates are changed, the bearing seats move to drive the rack II to move, the rack II moves to extrude the rack I, the rack I moves downwards and extrudes the spring I, when the rack II moves to be aligned with the rack I again, under the action of elastic force of the spring I, the rack I moves to reset and is meshed with the rack II, the problem that the brake shoes are not convenient to adjust is solved until the brake shoes move to proper positions, the problem that the brake shoes cannot be effectively subjected to friction braking on hubs is solved.

2. Through the position of the first two-way screw rod, the inclined block and the T-shaped square rod fixing rack, the micro motor works to drive the two-way screw rod to rotate, the two-way screw rod rotates to drive the two inclined planes to move relatively along the two-way screw rod, the inclined block moves to extrude the T-shaped square rod, the T-shaped square rod is extruded to move upwards to be attached to the bottom end of the rack, and then the position of the first fixing rack is used for avoiding the bearing seat from moving in the horizontal direction.

3. The bearing seat is pulled to move and reset through the T-shaped guide rod and the second spring, the T-shaped guide rod is driven to move in the moving process of the bearing seat, the second spring is stretched through the movement of the T-shaped guide rod, and the second spring is convenient to move and reset through the elasticity of the second spring.

Drawings

Fig. 1 is a schematic perspective view of a novel incremental advancing gap self-adjusting brake according to the present invention;

FIG. 2 is a schematic view of the internal structure of a U-shaped block of the novel incremental advancing gap self-adjusting brake provided by the utility model;

fig. 3 is a schematic view of a fixing structure of a rack of a novel incremental advancing gap self-adjusting brake provided by the utility model.

In the figure: 1. a base plate; 2. a driving cylinder; 3. a support plate; 4. a brake shoe; 5. a friction plate; 6. a U-shaped block; 7. a round pin; 8. a first tension spring; 9. a second tension spring; 10. a first rack; 11. a first spring; 12. a second rack; 13. a bearing seat; 14. a tapered plate; 15. an electric push rod; 16. a T-shaped guide rod; 17. a second spring; 18. a T-shaped square bar; 19. a third spring; 20. a U-shaped frame; 21. a bidirectional screw; 22. a sloping block; 23. a micro motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. It should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and their meaning in the context of this patent may be understood by those skilled in the art as appropriate.

Referring to fig. 1-3, a novel incremental advance clearance self-adjusting brake comprises a bottom plate 1, a driving cylinder 2, a support plate 3, a U-shaped block 6 and a brake shoe 4, wherein the driving cylinder 2, the support plate 3 and the U-shaped block 6 are fixedly installed at the top end of the bottom plate 1 from back to front in sequence, two round pins 7 are symmetrically installed in the U-shaped block 6, the brake shoe 4 is installed on the annular side surface of each round pin 7, one end of the brake shoe 4 is attached to the driving cylinder 2, one end of the brake shoe 4 extends into the support plate 3, a friction plate 5 is fixedly installed at the top end of the brake shoe 4, two first tension springs 8 are symmetrically and fixedly installed at the front end of the support plate 3, the other end of each first tension spring 8 is fixedly installed on the brake shoe 4, a second tension spring 9 is fixedly installed between the two brake shoes 4, a rectangular groove is formed in the bottom end of the U-shaped block 6, and a first spring 11 is fixedly installed at the bottom end of the rectangular groove, a rack I10 is fixedly installed at the top end of a spring I11, two bearing seats 13 are symmetrically and slidably installed in a rectangular groove, a round pin 7 is rotatably installed at the top ends of the bearing seats 13, the top end of the round pin 7 is attached to the top end of the interior of a U-shaped block 6, a rack II 12 is fixedly installed at the bottom end of the bearing seat 13, the bottom end of the rack II 12 is meshed with the top end of the rack I10, a conical plate 14 is slidably installed in the rectangular groove, the rear end of the conical plate 14 is respectively attached to the two bearing seats 13, an electric push rod 15 is fixedly installed at the front end of the U-shaped block 6, the rear end of the electric push rod 15 penetrates through the U-shaped block 6 and is fixedly installed at the front end of the conical plate 14, the conical plate 14 is located on the upper side of the rack I10, a brake shoe 4 is pushed by a driving cylinder 2, so that the brake shoe 4 rotates around the round pin 7, the brake shoe 4 rotates to drive a friction plate 5 to move, further friction brake of a hub is realized, and the brake is facilitated by the design of a first tension spring 8 and a second tension spring 9, the design of the supporting plate 3 avoids the brake shoe 4 from shaking in the vertical direction, when the positions of the brake shoe 4 and the friction plate 5 need to be adjusted outwards, the electric push rod 15 is started, the electric push rod 15 works to push the conical plate 14 to move, the conical plate 14 moves to extrude the two bearing seats 13, so that the two bearing seats 13 move outwards respectively to further drive the round pin 7 to move, the positions of the brake shoe 4 and the friction plate 5 are changed, the bearing seats 13 move to drive the rack II 12 to move, the rack II 12 moves to extrude the rack I10, so that the rack I10 moves downwards and extrudes the spring I11, when the rack II 12 moves to be meshed with the rack I10 again, under the action of the elastic force of the spring I11, the rack I10 moves to be reset to be meshed with the rack II 12 until the brake shoe 4 moves to a proper position, and the T-shaped guide rod 16 is driven to move in the moving process of the bearing seats 13, the T-shaped guide rod 16 moves to stretch the second spring 17, so that the second spring 17 generates an elastic force, and the elastic force of the second spring 17 is much larger than that of the first spring 11, so that the elastic force of the second spring 17 is convenient for pushing the bearing seat 13 and the round pin 7 to move and reset.

In the utility model, it should be noted that the front end of the bearing seat 13 is provided with an inclined plane, the conical plate 14 is attached to the bearing seat 13 through the inclined plane, more than two ball grooves are uniformly formed on the inclined plane, balls are arranged in the ball grooves in a rolling manner, the spherical side surfaces of the balls are attached to the rear end of the conical plate 14, the inclined plane is designed to facilitate the conical plate 14 to move to push the bearing seat 13 to move, the balls are designed to reduce the friction force between the bearing seat 13 and the conical plate 14, the left and right ends of the U-shaped block 6 are symmetrically provided with T-shaped guide rods 16, one end of each T-shaped guide rod 16 extends into the rectangular groove and is fixedly arranged on the bearing seat 13, the outer side of the annular side surface of each T-shaped guide rod 16 is provided with a second spring 17, the two ends of each second spring 17 are respectively and fixedly arranged on the T-shaped guide rods 16 and the U-shaped block 6, the design of the T-shaped guide rods 16 improves the horizontal movement stability of the bearing seat 13, and the elasticity of the second springs 17 facilitates the movement and the return of the bearing seat 13, a T-shaped square rod 18 is slidably mounted on the front side of the bottom end of the bottom plate 1, a spring III 19 is symmetrically mounted on the T-shaped square rod 18, the top end of the spring III 19 is fixedly mounted at the bottom end of the bottom plate 1, the top end of the T-shaped square rod 18 extends into the rectangular groove and is attached to the bottom end of the rack I10, a U-shaped frame 20 is fixedly mounted at the bottom end of the bottom plate 1, a two-way screw 21 is rotatably mounted in the U-shaped frame 20, a micro motor 23 is fixedly mounted at the right end of the U-shaped frame 20, the right end of the two-way screw 21 is fixedly mounted on the micro motor 23, two inclined blocks 22 are symmetrically mounted on the annular side surface of the two-way screw 21, one ends of the two inclined blocks 22 are respectively attached to the left end and the right end of the T-shaped square rod 18, threaded holes are formed in one ends of the two inclined blocks 22, the thread directions in the two threaded holes are opposite, the inclined blocks 22 are mounted on the two-way threaded holes 21, when the position of the bearing seat 13 needs to be fixed, the micro motor 23 is started, the work of micro motor 23 drives two-way screw rod 21 and rotates, two-way screw rod 21 rotates and drives two inclined planes and along two-way screw rod 21 relative movement, sloping block 22 removes and extrudes T type square bar 18, T type square bar 18 receives extrusion rebound and the laminating of rack 10 bottom mutually, and then the position of fixed rack 10 reaches the position of fixed bearing frame 13 and brake shoe 4, both ends symmetry fixed mounting has miniature bearing about two-way screw rod 21 annular side, and miniature bearing outside fixed mounting is inside U type frame 20, miniature bearing's design is convenient for two-way screw rod 21 to rotate and is installed inside U type frame 20.

The working principle is as follows: when the position of the brake shoe 4 needs to be adjusted, the electric push rod 15 is started, the electric push rod 15 works to push the conical plate 14 to move, the conical plate 14 moves to extrude the two bearing seats 13, the two bearing seats 13 respectively move outwards to drive the round pin 7 to move, the positions of the brake shoe 4 and the friction plate 5 are changed, the bearing seats 13 move to drive the rack II 12 to move, the rack II 12 moves to extrude the rack I10, the rack I10 moves downwards to extrude the spring I11, when the rack II 12 moves to be meshed and aligned with the rack I10 again, under the action of the elastic force of the spring I11, the rack I10 moves to reset to be meshed with the rack II 12 until the brake shoe 4 moves to a proper position, the micro motor 23 works to drive the bidirectional screw rod 21 to rotate, the bidirectional screw rod 21 rotates to drive the two inclined planes to relatively move along the bidirectional screw rod 21, the inclined block 22 moves to extrude the T-shaped square rod 18, the T-shaped square rod 18 is extruded to move upwards to be attached to the bottom end of the first rack 10, and therefore the position of the first rack 10 is fixed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. The utility model provides a novel increase formula clearance self-modulation stopper that advances, its characterized in that, includes bottom plate (1), drives actuating cylinder (2), backup pad (3), U type piece (6) and brake shoe (4), fixed mounting has in proper order from the back to before on bottom plate (1) top drives actuating cylinder (2), backup pad (3) and U type piece (6), two round pins (7) of U type piece (6) internal symmetry installation, two all install brake shoe (4) on round pin (7) annular side, and brake shoe (4) one end laminates with driving actuating cylinder (2), brake shoe (4) one end extends to inside backup pad (3), brake shoe (4) top fixed mounting has friction disc (5), two first extension springs (8) of backup pad (3) front end symmetrical fixed mounting, and first extension spring (8) other end fixed mounting is on brake shoe (4), a second tension spring (9) is fixedly installed between the two brake shoes (4), a rectangular groove is formed in the bottom end inside the U-shaped block (6), a first spring (11) is fixedly installed at the bottom end inside the rectangular groove, a first rack (10) is fixedly installed at the top end of the first spring (11), two bearing seats (13) are symmetrically and slidably installed inside the rectangular groove, the round pin (7) is rotatably installed at the top end of each bearing seat (13), the top end of the round pin (7) is attached to the top end inside the U-shaped block (6), a second rack (12) is fixedly installed at the bottom end of each bearing seat (13), the bottom end of the second rack (12) is meshed with the top end of the first rack (10), a conical plate (14) is slidably installed inside the rectangular groove, the rear end of the conical plate (14) is respectively attached to the two bearing seats (13), and an electric push rod (15) is fixedly installed at the front end of the U-shaped block (6), and the rear end of the electric push rod (15) penetrates through the U-shaped block (6) and is fixedly installed at the front end of the conical plate (14), and the conical plate (14) is located on the upper side of the first rack (10).

2. The novel incremental advance gap self-adjusting brake as claimed in claim 1, wherein the front end of the bearing seat (13) is provided with an inclined surface, the conical plate (14) is attached to the bearing seat (13) through the inclined surface, the inclined surface is uniformly provided with more than two ball grooves, balls are arranged in the ball grooves in a rolling manner, and the spherical side surfaces of the balls are attached to the rear end of the conical plate (14).

3. The novel incremental advance gap self-adjusting brake as claimed in claim 1, wherein the left end and the right end of the U-shaped block (6) are symmetrically provided with T-shaped guide rods (16), one end of each T-shaped guide rod (16) extends into the rectangular groove and is fixedly mounted on the bearing seat (13), the outer side of the annular side surface of each T-shaped guide rod (16) is provided with a second spring (17), and two ends of each second spring (17) are fixedly mounted on the T-shaped guide rods (16) and the U-shaped block (6) respectively.

4. The novel incremental advancing gap self-adjusting brake as claimed in claim 1, wherein a T-shaped square rod (18) is slidably mounted at the front side of the bottom end of the bottom plate (1), a third spring (19) is symmetrically mounted on the T-shaped square rod (18), the top end of the third spring (19) is fixedly mounted at the bottom end of the bottom plate (1), and the top end of the T-shaped square rod (18) extends into the rectangular groove and is attached to the bottom end of the first rack (10).

5. The novel incremental advance gap self-adjusting brake as claimed in claim 4, wherein a U-shaped frame (20) is fixedly installed at the bottom end of the bottom plate (1), a bidirectional screw rod (21) is rotatably installed inside the U-shaped frame (20), a micro motor (23) is fixedly installed at the right end of the U-shaped frame (20), and the right end of the bidirectional screw rod (21) is fixedly installed on the micro motor (23).

6. A novel incremental advance gap self-adjusting brake as claimed in claim 5, wherein two inclined blocks (22) are symmetrically installed on the annular side surface of the bidirectional screw rod (21), and one end of each of the two inclined blocks (22) is respectively attached to the left end and the right end of the T-shaped square rod (18).

7. The novel incremental advancing gap self-adjusting brake as claimed in claim 6, wherein one end of each of the two inclined blocks (22) is provided with a threaded hole, the thread directions of the threads in the two threaded holes are opposite, and the inclined blocks (22) are mounted on the bidirectional screw rod (21) through the threaded holes.

8. The novel incremental advancing gap self-adjusting brake as claimed in claim 5, wherein the miniature bearings are symmetrically and fixedly installed at the left end and the right end of the annular side surface of the bidirectional screw rod (21), and the outer sides of the miniature bearings are fixedly installed inside the U-shaped frame (20).