CN216922942U

CN216922942U - Brake shoe assembly capable of braking stably

Info

Publication number: CN216922942U
Application number: CN202220180085.6U
Authority: CN
Inventors: 章卫强
Original assignee: Hangzhou Yaoqiang Auto Parts Co ltd
Current assignee: Hangzhou Yaoqiang Auto Parts Co ltd
Priority date: 2022-01-21
Filing date: 2022-01-21
Publication date: 2022-07-08
Anticipated expiration: 2032-01-21

Abstract

The utility model provides a brake shoe assembly capable of braking stably, and belongs to the technical field of brake shoes. The smooth-braking brake shoe assembly comprises a supporting structure and a brake shoe structure. The supporting structure comprises a bottom plate and a limiting part, first through holes are formed in the bottom plate, the hydraulic sub-cylinders are installed on two sides of the bottom plate, the limiting part is fixed on the bottom plate, the brake shoe structure comprises two connecting pieces, four brake pieces and friction pieces, the two connecting pieces are fixed on two sides of one side of the bottom plate, the four brake pieces are rotatably connected to the two connecting pieces, the brake pieces are connected with the limiting part in a sliding mode, second through holes are formed in the four brake pieces, a reset spring is installed between the two second through holes, and the friction pieces are installed and fixed on the surfaces of the brake pieces. The utility model increases the contact area and the contact surface, thereby improving the braking stability of the brake shoe assembly.

Description

Brake shoe assembly capable of achieving stable braking

Technical Field

The utility model relates to the technical field of brake shoes, in particular to a brake shoe assembly capable of stably braking.

Background

The brake shoe is a friction coupling of a drum brake, and should have a friction coefficient as high and stable as possible, and suitable wear resistance, heat radiation, heat capacity, and the like, in addition to strength and rigidity required as a member.

At present, the existing brake shoe assembly which brakes stably generally has only two surfaces when in contact with a brake drum during use, so that the stability of the braking effect is relatively poor during braking.

SUMMERY OF THE UTILITY MODEL

In order to make up for the defects, the utility model provides a brake shoe assembly with stable braking, and aims to solve the problems that the brake shoe assembly with stable braking usually has two surfaces when in contact with a brake drum, and the stability of the braking effect is relatively poor.

The utility model is realized by the following steps:

the utility model provides a brake shoe assembly capable of braking stably, which comprises a supporting structure and a brake shoe structure.

The supporting structure comprises a bottom plate, a hydraulic sub-cylinder and a limiting part, wherein first through holes are formed in the bottom plate, the hydraulic sub-cylinder is installed on two sides of the bottom plate, the limiting part is fixed on the bottom plate, the brake shoe structure comprises two connecting pieces, four brake pieces and friction pieces, the two connecting pieces are fixed on two sides of one side of the bottom plate, the four brake pieces are rotatably connected to the two connecting pieces, the brake pieces are slidably connected with the limiting part, second through holes are formed in the four brake pieces, a reset spring is installed between the two second through holes, and the friction pieces are fixedly installed on the surfaces of the brake pieces.

In an embodiment of the present invention, the bottom plate is provided with nail holes, and the nail holes are circumferentially distributed along the periphery of the first through hole.

In an embodiment of the utility model, the limiting member includes a fixed block and a connecting block, notches are symmetrically formed on two sides of the fixed block, one side of the connecting block is fixedly connected with the fixed block, and the other side of the connecting block is fixedly connected with the bottom plate.

In an embodiment of the utility model, a limiting groove matched with the notch is formed in the brake pad, and the limiting groove is connected to the notch in a sliding manner.

In an embodiment of the utility model, the connecting piece comprises a connecting plate and a pin, the connecting plate is fixedly connected with the bottom plate, the pin penetrates through the connecting plate, the pin rotatably penetrates through the brake block, and the end part of the pin is fixedly arranged on the bottom plate.

In an embodiment of the present invention, heat dissipation holes are further formed inside the brake pad, and the heat dissipation holes are uniformly distributed on the brake pad.

In one embodiment of the utility model, a clamping plate is fixed at one end of the brake piece, and the clamping plate is arc-shaped.

In one embodiment of the utility model, a groove is formed on the surface of the friction plate, a rivet penetrates through the groove, and the rivet is connected with the brake pad.

In an embodiment of the present invention, the brake pad is a steel frame, and the cross section of the brake pad is arranged in an arc shape.

In one embodiment of the utility model, the friction plate has a thickness of between five millimeters and one centimeter.

The utility model has the beneficial effects that: according to the brake shoe assembly with stable braking, when the brake shoe assembly is used, the hydraulic cylinder is connected with a hydraulic system on a vehicle, when the brake is carried out, the hydraulic cylinder extends out towards two ends, the two ends of the hydraulic cylinder are in contact with the clamping plates of the brake pieces and push the brake pieces to open towards the two ends, the friction plates are in contact with the brake drums on the wheels to generate friction for braking, and the four brake pieces are arranged, so that the brake drums can be braked from four different directions when in contact with the brake drums, the contact area and the contact surface are increased, and the braking stability of the brake shoe assembly is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of a first perspective view of a smooth-braking brake shoe assembly according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a brake pad of a smooth-braking brake shoe assembly according to an embodiment of the present invention;

FIG. 3 is a schematic structural view of a brake shoe assembly rivet for smooth braking according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a brake shoe assembly limiting member for smooth braking according to an embodiment of the present invention.

In the figure: 100-a support structure; 110-a base plate; 111-a first via; 120-hydraulic cylinder division; 130-nail holes; 140-a stop; 141-a fixed block; 142-a gap; 143-connecting block; 200-brake shoe structure; 210-a connector; 211-connecting plate; 212-a pin; 220-brake pad; 221-a limiting groove; 222-a second via; 223-heat dissipation holes; 230-a clamping plate; 240-friction plate; 241-grooves; 242-rivets; 250-a return spring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a smooth-braking brake shoe assembly includes a support structure 100 and a brake shoe structure 200.

The brake shoe structure 200 is mounted and fixed on the support structure 100 for braking the brake drum by friction.

Referring to fig. 1 and 4, the supporting structure 100 includes a bottom plate 110, hydraulic cylinders 120 and a limiting member 140, the bottom plate 110 has a first through hole 111 formed therein, the hydraulic cylinders 120 are mounted on two sides of the bottom plate 110, and the limiting member 140 is fixed on the bottom plate 110.

The bottom plate 110 is provided with nail holes 130, the nail holes 130 are circumferentially distributed along the periphery of the first through hole 111, and the nail holes 130 are arranged to facilitate penetration of bolts, so that the bottom plate 110 is conveniently fixed; the limiting member 140 comprises a fixed block 141 and a connecting block 143, wherein notches 142 are symmetrically formed in two sides of the fixed block 141, one side of the connecting block 143 is fixedly connected with the fixed block 141, and the other side of the connecting block 143 is fixedly connected with the bottom plate 110; the inside of the brake pad 220 is provided with a limit groove 221 matched with the notch 142, the limit groove 221 is connected to the notch 142 in a sliding manner, and the notch 142, the connecting block 143 and the limit groove 221 on the fixing block 141 can improve the stability when the brake pad 220 rotates.

Referring to fig. 1 to 3, the brake shoe structure 200 includes two connecting members 210, four brake pads 220 and a friction plate 240, the two connecting members 210 are fixed on two sides of one side of the base plate 110, the four brake pads 220 are rotatably connected to the two connecting members 210, the brake pads 220 are slidably connected to the limiting member 140, second through holes 222 are formed in the four brake pads 220, a return spring 250 is installed between the two second through holes 222, and the friction plate 240 is installed and fixed on the surface of the brake pads 220.

The connecting piece 210 comprises a connecting plate 211 and a pin 212, the connecting plate 211 is fixedly connected with the base plate 110, the pin 212 penetrates through the connecting plate 211, the pin 212 rotatably penetrates through the brake block 220, the end of the pin 212 is fixedly installed on the base plate 110, and the brake block 220 can be conveniently fixedly installed and can be conveniently rotated through the arrangement of the connecting plate 211 and the pin 212.

The inside of the brake pad 220 is further provided with heat dissipation holes 223, the heat dissipation holes 223 are uniformly distributed on the brake pad 220, and the arrangement of the heat dissipation holes 223 can increase the heat dissipation effect of the friction plate 240 in the working process; one end of the brake block 220 is fixed with a clamping plate 230, the clamping plate 230 is arc-shaped, and the arc-shaped clamping plate 230 can be conveniently contacted with the output ends at the two ends of the hydraulic cylinder 120, so that the stability after contact is improved, and the clamping plate is beneficial to pushing the hydraulic cylinder to the two sides.

A groove 241 is formed in the surface of the friction plate 240, a rivet 242 penetrates through the groove 241, and the rivet 242 is connected with the brake plate 220; the brake block 220 is a steel frame, the section of the brake block 220 is arranged in an arc shape, and the arc-shaped brake block 220 can increase the contact area with a brake drum, so that the stability of braking is improved; the friction plate 240 has a thickness of between five millimeters and one centimeter.

Specifically, the working principle of the brake shoe assembly with stable braking is as follows: when the brake shoe assembly is used, the hydraulic sub-cylinder 120 is connected with a hydraulic system on a vehicle, when braking is carried out, the hydraulic sub-cylinder 120 extends out towards two ends in working, at the moment, two ends of the hydraulic sub-cylinder 120 are in contact with the clamping plates 230 of the brake pads 220 and push the brake pads 220 to open towards two ends, at the moment, the friction plates 240 are in contact with the brake drums on the wheels to generate friction for braking, and because the four brake pads 220 are arranged, the brake drums can be braked from four different directions when in contact with the brake drums, so that the contact area and the contact surface are increased, and the braking stability of the brake shoe assembly is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. 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 smooth-braking brake shoe assembly is characterized by comprising

The supporting structure (100) comprises a bottom plate (110), hydraulic sub-cylinders (120) and limiting pieces (140), wherein first through holes (111) are formed in the bottom plate (110), the hydraulic sub-cylinders (120) are installed on two sides of the bottom plate (110), and the limiting pieces (140) are fixed on the bottom plate (110);

the brake shoe structure (200) comprises two connecting pieces (210), four brake pieces (220) and friction plates (240), the two connecting pieces (210) are fixed on two sides of one side of the base plate (110), the four brake pieces (220) are rotatably connected to the two connecting pieces (210), the brake pieces (220) are connected with the limiting piece (140) in a sliding mode, second through holes (222) are formed in the four brake pieces (220), a return spring (250) is installed between the two second through holes (222), and the friction plates (240) are fixedly installed on the surfaces of the brake pieces (220).

2. The brake shoe assembly with smooth braking according to claim 1, wherein the bottom plate (110) is provided with nail holes (130), and the nail holes (130) are circumferentially distributed along the periphery of the first through hole (111).

3. The brake shoe assembly capable of braking smoothly as claimed in claim 1, wherein the limiting member (140) comprises a fixing block (141) and a connecting block (143), notches (142) are symmetrically formed in two sides of the fixing block (141), one side of the connecting block (143) is fixedly connected with the fixing block (141), and the other side of the connecting block (143) is fixedly connected with the bottom plate (110).

4. The assembly of the brake shoe as claimed in claim 3, wherein the brake pad (220) is provided with a limiting groove (221) matching with the opening (142) inside, and the limiting groove (221) is slidably connected to the opening (142).

5. A brake shoe assembly according to claim 1 wherein said connecting member (210) comprises a connecting plate (211) and a pin (212), said connecting plate (211) being fixedly connected to said base plate (110), said pin (212) extending through said connecting plate (211), said pin (212) being rotatably extending through said brake plate (220), an end of said pin (212) being fixedly attached to said base plate (110).

6. The brake shoe assembly of claim 1, wherein the brake pad (220) further comprises heat dissipation holes (223), and the heat dissipation holes (223) are uniformly distributed on the brake pad (220).

7. A smooth-braked brake shoe assembly according to claim 1 wherein a snap plate (230) is fixed to one end of the brake pad (220), the snap plate (230) being arcuate.

8. A smooth-braking brake shoe assembly according to claim 1 wherein the friction plate (240) has a groove (241) formed in its surface, and a rivet (242) extends through the groove (241), the rivet (242) being connected to the brake pad (220).

9. A smooth-braked brake shoe assembly according to claim 1, wherein the brake block (220) is a steel frame, and the cross section of the brake block (220) is arranged in an arc shape.

10. A smooth-braking brake shoe assembly according to claim 1 wherein the friction plate (240) is between five millimeters and one centimeter thick.