CN213017388U

CN213017388U - High-strength brake drum

Info

Publication number: CN213017388U
Application number: CN202021554685.1U
Authority: CN
Inventors: 戴鹏飞
Original assignee: Chongqing Qingtai Auto Parts Co ltd
Current assignee: Chongqing Qingtai Auto Parts Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-04-20
Anticipated expiration: 2030-07-31

Abstract

The utility model discloses a high-strength brake drum, which comprises a body, wherein a stud is arranged on the front surface of the body, a wheel hub is arranged on the back surface of the body, a back plate frame is arranged on the back surface of the wheel hub, a brake shoe, a friction block, a fixing part, a reset spring, a hydraulic cylinder and an adjusting device are fixedly arranged on the front surface of the back plate frame, the brake shoe and the friction block are fixedly arranged at the two ends of the back plate frame, and the friction block is fixedly arranged at the top end of the brake shoe; the fixed setting of mounting is in the front of brake shoe, and hydraulic cylinder and reset spring are fixed to be set up on the top of backplate frame, and reset spring is fixed to be set up at the top of hydraulic cylinder, and adjusting device is fixed to be set up in the bottom of backplate frame. When this kind of high strength brake drum needs the braking, the inside piston of pneumatic cylinder can promote the brake shoe to the both sides motion, thereby the brake shoe will drive the clutch blocks on its top and the effect that the body internal surface produced the friction and brake, because brake shoe and clutch blocks are made by wear-resisting material, consequently braking strength is great, and life is longer.

Description

High-strength brake drum

Technical Field

The utility model relates to a brake drum technical field specifically is a high strength brake drum.

Background

The brake drum is a part of a drum brake system, and when the brake drum is used for braking, a piston applies pressure to two pairs of half-moon-shaped brake shoes to enable the brake shoes to be tightly attached to the inner wall of a drum chamber, so that friction is generated to stop the rotation of a wheel. The existing brake drum is worn due to the fact that the brake shoe is in long-term contact with the inner wall of the drum chamber, and the brake intensity is affected due to the fact that the brake shoe cannot be supplemented timely, so that the brake effect is poor. We have therefore developed this and propose a high strength brake drum.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a high-strength brake drum, which comprises a body, wherein a stud is fixedly arranged on the front side of the body, a wheel hub is fixedly arranged on the back side of the body, a back plate frame is fixedly arranged on the back side of the wheel hub, a brake shoe, a friction block, a fixing part, a reset spring, a hydraulic cylinder and an adjusting device are fixedly arranged on the front side of the back plate frame, the brake shoe and the friction block are fixedly arranged at two ends of the back plate frame, and the friction block is fixedly arranged at the top end of the brake shoe; the fixed setting of mounting is in the front of brake shoe, pneumatic cylinder and reset spring are fixed to be set up on the top of backplate frame, and reset spring is fixed to be set up at the top of pneumatic cylinder, adjusting device is fixed to be set up in the bottom of backplate frame.

As an optimal technical scheme of the utility model, adjusting device includes the regulator, adjusts pole, first spring and second spring, and the fixed regulating blade that is provided with of regulator.

As a preferred technical scheme of the utility model, the fixed top that sets up at the regulation pole of regulating blade, the fixed one side that sets up at the regulator of first spring, the second spring is fixed to be set up on the top of regulator, and the one end of first spring and second spring all through solid fixed ring and brake shoe fixed connection.

As a preferred technical scheme of the utility model, adjust the pole and include dwang and driven lever, and the fixed one end that sets up at the driven lever of dwang.

As a preferred technical scheme of the utility model, the outer surface of the rotating rod is fixedly provided with a screw hole, the inner surface of the driven rod is fixedly provided with a thread, and the rotating rod is in threaded connection with the driven rod through the screw hole; and a rubber ring is fixedly arranged on the outer surface of the driven rod.

As a preferred technical scheme of the utility model, the both ends of pneumatic cylinder are fixed and are provided with the piston, and the fixed surface of piston is provided with the dust cover, and pneumatic cylinder internal fixation is provided with expansion assembly and reset assembly.

As a preferred technical scheme of the utility model, the fixed both ends that set up at reset assembly of inflation subassembly, the piston is fixed to be set up at inflation subassembly's both ends.

As an optimal technical scheme of the utility model, brake shoe, clutch blocks and double-screw bolt are made by wear-resisting and noise reduction material.

The utility model has the advantages that:

the high-strength brake drum is internally and fixedly provided with a hydraulic cylinder, a brake shoe and a friction block, when braking is needed, a piston inside the hydraulic cylinder can push the brake shoe to move towards two sides, the brake shoe can drive the friction block at the top end of the brake shoe to generate friction with the inner surface of the body, so that the braking effect is achieved, and the brake shoe and the friction block are made of wear-resistant materials, so that the brake drum is high in braking strength and long in service life.

The adjusting device comprises an adjuster, an adjusting rod, a first spring and a second spring, when the friction block is abraded, the friction block can be always kept in a fixed area in contact with the inner surface of the body through the adjustment of the movement of the brake shoe by the adjusting device, the braking effect can be effectively guaranteed, and meanwhile, the braking strength can be enhanced.

Drawings

The accompanying drawings 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 invention and not to limit the invention. In the drawings:

fig. 1 is a first plan view of a high-strength brake drum according to the present invention;

FIG. 2 is a second plan view of a high strength brake drum of the present invention;

FIG. 3 is a third plan view of a high strength brake drum of the present invention;

fig. 4 is a fourth plan view of a high strength brake drum of the present invention;

fig. 5 is a plan view of a high-strength brake drum according to the present invention.

In the figure: 1. a body; 2. a stud; 3. a hub; 4. a backboard frame; 5. a brake shoe; 6. a friction block; 7. a fixing member; 8. a return spring; 9. a hydraulic cylinder; 10. an adjustment device; 11. a regulator; 12. adjusting a rod; 13. a first spring; 14. a second spring; 15. a regulating sheet; 16. a fixing ring; 17. rotating the rod; 18. a driven lever; 19. a screw hole; 20. a thread; 21. a piston; 22. a dust cover; 23. an expansion assembly; 24. and resetting the component.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example 1: as shown in fig. 1-3, the utility model relates to a high-strength brake drum, including body 1, the front of body 1 is fixed and is provided with double-screw bolt 2, the back of body 1 is fixed and is provided with wheel hub 3, the back of wheel hub 3 is fixed and is provided with backplate frame 4, backplate frame 4 is fixed and is provided with brake shoe 5, clutch blocks 6, mounting 7, reset spring 8, pneumatic cylinder 9 and adjusting device 10 in the front, wherein brake shoe 5 and clutch blocks 6 are all fixed and are set up at the both ends of backplate frame 4, and clutch blocks 6 are fixed and are set up at the top of brake shoe 5; the fixing piece 7 is fixedly arranged on the front face of the brake shoe 5, the hydraulic cylinder 9 and the return spring 8 are fixedly arranged on the top end of the back plate frame 4, the return spring 8 is fixedly arranged on the top of the hydraulic cylinder 9, and the adjusting device 10 is fixedly arranged at the bottom end of the back plate frame 4.

The adjusting device 10 comprises an adjuster 11, an adjusting rod 12, a first spring 13 and a second spring 14, and the adjuster 11 is fixedly provided with an adjusting sheet 15. The adjusting sheet 15 is fixedly arranged at the top end of the adjusting rod 12, the first spring 13 is fixedly arranged on one side of the adjuster 11, the second spring 14 is fixedly arranged at the top end of the adjuster 11, one ends of the first spring 13 and the second spring 14 are fixedly connected with the brake shoe 5 through the fixing ring 16, when the friction block 6 at the top end of the brake shoe 5 is worn, the brake shoe 5 also moves to a certain extent, so that the first spring 13 and the second spring 14 deform elastically, at the moment, the first spring 13 and the second spring 14 drive the adjuster 11 and the adjusting rod 12 to adjust the position of the brake shoe 5, and the contact area between the friction block 6 and the body 1 is supplemented timely.

Example 2: as shown in fig. 4, the adjusting lever 12 includes a rotating lever 17 and a driven lever 18, and the rotating lever 17 is fixedly disposed at one end of the driven lever 18; a screw hole 19 is fixedly formed in the outer surface of the rotating rod 17, a thread 20 is fixedly formed in the inner surface of the driven rod 18, and the rotating rod 17 is in threaded connection with the driven rod 18 through the screw hole 19; and the outer surface of the driven lever 18 is fixedly provided with a rubber ring, and the adjusting sheet 15 and the rotating lever 17 are in a rotating connection relationship, when the adjuster 11 is required to adjust the brake shoe 5, the adjusting sheet 15 will drive the rotating lever 17 to start rotating, when the rotating lever 17 rotates, the driven lever 18 will also generate a certain displacement, and the driven lever 18 and the brake shoe 5 are in a fixed connection relationship, so that the driven lever 18 will drive the brake shoe 5 to move towards two sides, and thus the friction block 6 is driven to move towards two sides.

Example 3: as shown in fig. 5, pistons 21 are fixedly arranged at two ends of the hydraulic cylinder 9, a dust cover 22 is fixedly arranged on the surface of the piston 21, and an expansion assembly 23 and a reset assembly 24 are fixedly arranged inside the hydraulic cylinder 9; the expansion assembly 23 is fixedly arranged at two ends of the reset assembly 24, the piston 21 is fixedly arranged at two ends of the expansion assembly 23, when braking is needed, the piston 21 inside the hydraulic cylinder 9 moves towards two sides under the action of the expansion assembly 23, so that the brake shoe 5 and the friction block 6 are pushed to move towards two sides, and when the brake shoe moves to a specific position, the expansion assembly 23 and the piston 21 are driven to return to the hydraulic cylinder 9 due to the action of the fixing member 7 and the reset assembly 24.

The brake shoe 5, the friction block 6 and the stud 2 are all made of wear-resistant and noise-reduction materials, the service life of the body 1 is effectively prolonged by the wear-resistant and noise-reduction materials, and meanwhile, the use strength of the body 1 can be effectively enhanced.

The working principle is as follows: the body 1, the hub 3 and the back plate frame 4 are fixedly arranged together, when a braking effect is required to be generated, a certain pressure is applied to the hydraulic cylinder 9, the expansion assembly 23 in the hydraulic cylinder 9 drives the piston 21 to move towards two sides, the piston 21 drives the brake shoe 5 to move towards two sides, the brake shoe 5 drives the friction block 6 to move towards two sides, so as to drive the friction block 6 to generate friction with the inner surface of the body 1, and thus the braking effect is achieved, when the friction block 6 is abraded due to long-term friction with the inner surface of the body 1, the first spring 13 and the second spring 14 are caused to generate elastic deformation, so as to drive the adjusting piece 15 on the adjuster 11 to drive the rotating rod 17 to rotate, the rotating rod 17 drives the driven rod 18 to rotate, the driven rod 18 drives the brake shoe 5 to move towards two sides, so as to drive the friction block 6 to move towards two sides, the abraded part is supplemented in time, and, and simultaneously, the braking strength can also be enhanced.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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. The high-strength brake drum comprises a body (1) and is characterized in that a stud (2) is fixedly arranged on the front side of the body (1), a hub (3) is fixedly arranged on the back side of the body (1), a backing plate frame (4) is fixedly arranged on the back side of the hub (3), a brake shoe (5), a friction block (6), a fixing part (7), a reset spring (8), a hydraulic cylinder (9) and an adjusting device (10) are fixedly arranged on the front side of the backing plate frame (4), wherein the brake shoe (5) and the friction block (6) are fixedly arranged at two ends of the backing plate frame (4), and the friction block (6) is fixedly arranged at the top end of the brake shoe (5); fixing member (7) are fixed to be set up in the front of brake shoe (5), pneumatic cylinder (9) and reset spring (8) are fixed to be set up on the top of backplate frame (4), and reset spring (8) are fixed to be set up at the top of pneumatic cylinder (9), adjusting device (10) are fixed to be set up in the bottom of backplate frame (4).

2. A high-strength brake drum according to claim 1, wherein the adjusting device (10) comprises an adjuster (11), an adjusting rod (12), a first spring (13) and a second spring (14), and the adjuster (11) is fixedly provided with an adjusting sheet (15).

3. A high-strength brake drum according to claim 2, wherein the adjusting plate (15) is fixedly arranged at the top end of the adjusting lever (12), the first spring (13) is fixedly arranged at one side of the adjuster (11), the second spring (14) is fixedly arranged at the top end of the adjuster (11), and one end of each of the first spring (13) and the second spring (14) is fixedly connected with the brake shoe (5) through a fixing ring (16).

4. A high strength brake drum according to claim 2, wherein the adjusting lever (12) comprises a rotating lever (17) and a driven lever (18), and the rotating lever (17) is fixedly provided at one end of the driven lever (18).

5. A high-strength brake drum as claimed in claim 4, wherein a screw hole (19) is fixedly formed on the outer surface of the rotating rod (17), a thread (20) is fixedly formed on the inner surface of the driven rod (18), and the rotating rod (17) is in threaded connection with the driven rod (18) through the screw hole (19); and a rubber ring is fixedly arranged on the outer surface of the driven rod (18).

6. A high-strength brake drum as claimed in claim 1, wherein pistons (21) are fixedly arranged at two ends of the hydraulic cylinder (9), dust covers (22) are fixedly arranged on the surfaces of the pistons (21), and an expansion assembly (23) and a reset assembly (24) are fixedly arranged in the hydraulic cylinder (9).

7. A high strength brake drum according to claim 6, wherein the expansion assembly (23) is fixedly arranged at both ends of the reset assembly (24), and the piston (21) is fixedly arranged at both ends of the expansion assembly (23).

8. A high strength brake drum according to claim 1, characterized in that the brake shoes (5), friction blocks (6) and studs (2) are made of wear resistant and sound deadening material.