Air pressure disc brake

Abstract

The utility model relates to the technical field of brakes, in particular to an air pressure disc brake which comprises a support, an air pressure piston, a breather pipe, a piston body and a brake disc, the air pressure piston is fixedly connected to the front end of the support, the breather pipe is fixedly connected to one end of the air pressure piston, the piston body is arranged in the air pressure piston, and the brake disc is arranged at the front end of the support. According to the brake disc, the heat dissipation layer, the heat dissipation plate and the heat dissipation columns are arranged to form the heat dissipation assembly, when the friction plate conducts braking on the brake disc, a large amount of heat can be generated through friction, a heat dissipation system in the brake disc conducts heat dissipation on the brake disc, and the heat dissipation effect is good. Heat on the friction plate is conducted through the heat dissipation columns and the heat dissipation plate, meanwhile, the heat dissipation area is increased, the heat is rapidly dissipated through the heat dissipation layer, the device is diversified in heat dissipation mode, the heat dissipation effect is improved, aging of internal elements caused by too high temperature of the brake is reduced, and therefore the overall service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of brakes, in particular to a pneumatic disc brake. Background Art

[0002] The rotating element of the disc brake is a metal disc that works on the end surface, called a brake disc. The friction element clamps the brake disc from both sides to produce braking. The fixed element has various structural forms. Disc brakes can be roughly divided into two types: caliper disc type and full disc type. Pneumatic disc brakes use an air chamber as the driving source.

[0003] When the existing pneumatic disc brake is in use, the brake disc is clamped from both sides by friction elements to generate braking. During the braking process, a large amount of heat is generated by friction, and this heat is dissipated through the brake disc's own cooling system. This heat dissipation method is relatively simple, resulting in poor heat dissipation effect, causing the brake temperature to be too high, causing the internal components to age easily, thereby reducing the overall service life. At the same time, the friction pad needs to be replaced regularly, but when replacing it, the entire brake pad needs to be replaced, which is a waste. Therefore, in response to the above problems, we propose a pneumatic disc brake. Utility Model Content

[0004] The utility model aims to provide a pneumatic disc brake to solve the problem that heat is dissipated through the heat dissipation system of the brake disc itself. This heat dissipation method is relatively simple, resulting in poor heat dissipation effect, causing the temperature of the brake to be too high, causing the internal components to age easily, thereby reducing the overall service life. At the same time, the friction pad needs to be replaced regularly, but when replacing it, the entire brake pad needs to be replaced, which is a waste.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A pneumatic disc brake comprises a bracket, a pneumatic piston, a vent pipe, a piston body and a brake disc, wherein the front end of the bracket is fixedly connected to the pneumatic piston, one end of the pneumatic piston is fixedly connected to the vent pipe, a piston body is arranged inside the pneumatic piston, a brake disc is arranged at the front end of the bracket, one end of the piston body away from the vent pipe is fixedly connected to a gasket, one end of the gasket away from the piston body is fixedly connected to a back plate, one end of the back plate away from the gasket is fixedly connected to an interlayer, one end of the interlayer away from the backplate is fixedly connected to a heat dissipation layer, one end of the heat dissipation layer away from the interlayer is fixedly connected to a connecting ring, one end of the connecting ring away from the heat dissipation layer is provided with a friction plate, one end of the friction plate close to the connecting ring is fixedly connected to a connecting rod, placement grooves are provided on the inner sides of the upper and lower ends of the connecting ring, a compression spring is fixedly connected inside the placement groove, one end of the compression spring is fixedly connected to a connecting block, one end of the connecting block is fixedly connected to a plug rod, the inner wall of the connecting ring is fixedly connected to a heat dissipation plate, and one end of the heat dissipation plate away from the heat dissipation layer is fixedly connected to a heat dissipation column.

[0007] Preferably, the number of the pneumatic pistons is two, the number of the ventilation pipes is two, and the number of the piston bodies is two.

[0008] Preferably, the brake disc is located between two friction plates, the number of the gaskets is two, and the number of the back plates is two.

[0009] Preferably, the number of the interlayers is two, one end of the heat dissipation layer away from the interlayer is fixedly connected with a heat dissipation plate, the number of the friction plates is two, and one end of the connecting rod is located on the inner side of the connecting ring.

[0010] Preferably, a placement groove is slidably connected to the outer side of the connecting block, the insertion rod has an inverted "T" shape, one end of the insertion rod passes through the connecting rod, and the end of the heat dissipation column away from the heat dissipation plate is in contact with the surface of one end of the friction plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, a heat dissipation component is formed by arranging a heat dissipation layer, a heat dissipation plate and a heat dissipation column. When the friction pad brakes the brake disc, a large amount of heat is generated by friction. The heat dissipation system inside the brake disc dissipates the heat of the brake disc, and the heat on the friction pad is conducted through the heat dissipation column and the heat dissipation plate while increasing the heat dissipation area, so that the heat is quickly dissipated through the heat dissipation layer. The heat dissipation mode of the device is diversified, the heat dissipation effect is improved, and the aging of internal components caused by excessive brake temperature is reduced, thereby extending the overall service life. The brake pad is formed by arranging a connecting rod, a compression spring, a connecting block and a plug rod, a gasket, a back plate, an interlayer, a heat dissipation layer, a connecting ring, a heat dissipation plate, a heat dissipation column and a friction pad. When the friction pad needs to be replaced, the plug rod is pulled outward so that the plug rod leaves the inside of the connecting rod, and the friction pad can be removed for replacement, and then the new friction pad is put back to its original position, and then the plug rod is released. At this time, the compression spring provides a reverse force to drive the plug rod to slide upward through the connecting block, so that one end of the plug rod passes through the connecting rod, thereby installing and fixing the friction pad. The device does not need to replace the entire brake pad, saves materials, and reduces economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 A schematic diagram of the structure at A;

[0015] Figure 3 For this utility model Figure 1 Schematic diagram of the structure at point B.

[0016] In the figure: 1. bracket; 2. pneumatic piston; 3. vent pipe; 4. piston body; 5. brake disc; 6. gasket; 7. back plate; 8. interlayer; 9. heat dissipation layer; 10. connecting ring; 11. friction plate; 12. connecting rod; 13. placement groove; 14. compression spring; 15. connecting block; 16. plug rod; 17. heat dissipation plate; 18. heat dissipation column. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 , the utility model provides a technical solution:

[0019] A pneumatic disc brake comprises a bracket 1, a pneumatic piston 2, a vent pipe 3, a piston body 4 and a brake disc 5. The front end of the bracket 1 is fixedly connected to the pneumatic piston 2, one end of the pneumatic piston 2 is fixedly connected to the vent pipe 3, the piston body 4 is arranged inside the pneumatic piston 2, the front end of the bracket 1 is provided with a brake disc 5, the end of the piston body 4 away from the vent pipe 3 is fixedly connected to a gasket 6, the end of the gasket 6 away from the piston body 4 is fixedly connected to a back plate 7, the end of the back plate 7 away from the gasket 6 is fixedly connected to an interlayer 8, the end of the interlayer 8 away from the back plate 7 is fixedly connected to a heat dissipation layer 9, and the heat dissipation layer 9 is fixedly connected to the back plate 7. The end of the layer 9 away from the interlayer 8 is fixedly connected with a connecting ring 10, the end of the connecting ring 10 away from the heat dissipation layer 9 is provided with a friction plate 11, the end of the friction plate 11 close to the connecting ring 10 is fixedly connected with a connecting rod 12, the inner sides of the upper and lower ends of the connecting ring 10 are provided with placement grooves 13, the inside of the placement groove 13 is fixedly connected with a compression spring 14, one end of the compression spring 14 is fixedly connected with a connecting block 15, one end of the connecting block 15 is fixedly connected with an insertion rod 16, the inner wall of the connecting ring 10 is fixedly connected with a heat dissipation plate 17, and the end of the heat dissipation plate 17 away from the heat dissipation layer 9 is fixedly connected with a heat dissipation column 18.

[0020] There are two pneumatic pistons 2, two vent pipes 3, two piston bodies 4, a brake disc 5 is located between two friction plates 11, two gaskets 6, two back plates 7, two interlayers 8, a heat dissipation layer 9 is fixedly connected to a heat dissipation plate 17 at one end away from the interlayer 8, two friction plates 11, one end of the connecting rod 12 is located on the inner side of the connecting ring 10, a placement groove 13 is slidably connected to the outer side of the connecting block 15, the insertion rod 16 is in an inverted "T" shape, one end of the insertion rod 16 passes through the connecting rod 12, one end of the heat dissipation column 18 away from the heat dissipation plate 17 is in contact with the surface of one end of the friction plate 11, the front end of the bracket 1 is fixedly connected to the pneumatic piston 2, one end of the pneumatic piston 2 is fixedly connected to the vent pipe 3, and the inside of the pneumatic piston 2 A piston body 4 is provided at the front end of the bracket 1, a brake disc 5 is provided, one end of the piston body 4 away from the vent pipe 3 is fixedly connected to a gasket 6, one end of the gasket 6 away from the piston body 4 is fixedly connected to a back plate 7, one end of the back plate 7 away from the gasket 6 is fixedly connected to an interlayer 8, and one end of the interlayer 8 away from the back plate 7 is fixedly connected to a heat dissipation layer 9, so that the heat dissipation layer 9, the heat dissipation plate 17 and the heat dissipation column 18 are conveniently arranged to form a heat dissipation component. When the friction plate 11 brakes the brake disc 5, a large amount of heat is generated by friction. The heat dissipation system inside the brake disc 5 dissipates the heat from the brake disc 5, and the heat on the friction plate 11 is conducted through the heat dissipation column 18 and the heat dissipation plate 17, while increasing the heat dissipation area, so that the heat is quickly dissipated through the heat dissipation layer 9. The device has diversified heat dissipation methods, which improves the heat dissipation effect and reduces the aging of internal components caused by excessive brake temperature, thereby extending the overall service life; the end of the heat dissipation layer 9 away from the interlayer 8 is fixedly connected with a connecting ring 10, and the end of the connecting ring 10 away from the heat dissipation layer 9 is provided with a friction plate 11, and the end of the friction plate 11 close to the connecting ring 10 is fixedly connected with a connecting rod 12, which is convenient for arranging the connecting rod 12, the compression spring 14, the connecting block 15 and the plug rod 16. The gasket 6, the back plate 7, the interlayer 8, the heat dissipation layer 9, the connecting ring 10, the heat dissipation plate 17, the heat dissipation column 18 and the friction plate 11 constitute the brake pad. When the friction plate 11 needs to be replaced, the plug rod 16 is pulled outward to make the plug rod 16 leave the inside of the connecting rod 12, and the friction plate 11 can be replaced. Remove it for replacement, then put the new friction plate 11 back in place, and then loosen the insertion rod 16. At this time, the compression spring 14 provides a reverse force to drive the insertion rod 16 to slide upward through the connecting block 15, so that one end of the insertion rod 16 passes through the connecting rod 12, thereby installing and fixing the friction plate 11. This device does not require the entire brake pad to be replaced, saving materials and reducing economic losses; a placement groove 13 is provided on the inner side of the upper and lower ends of the connecting ring 10, and a compression spring 14 is fixedly connected to the inside of the placement groove 13, one end of the compression spring 14 is fixedly connected to the connecting block 15, and one end of the connecting block 15 is fixedly connected to the insertion rod 16, and the inner wall of the connecting ring 10 is fixedly connected to a heat sink 17, and the end of the heat sink 17 away from the heat dissipation layer 9 is fixedly connected to a heat dissipation column 18.

[0021] Working process: When the device is in use, the gasket 6, the back plate 7, the interlayer 8, the heat dissipation layer 9, the connecting ring 10, the heat dissipation plate 17, the heat dissipation column 18 and the friction plate 11 constitute a brake pad. The gas is discharged into the pneumatic piston 2 through the vent pipe 3, so that the air pressure in the pneumatic piston 2 increases, thereby pushing the piston body 4 to drive the brake pad to slide in the direction of the brake disc 5, so that the friction plate 11 brakes the brake disc 5. During the braking process, a large amount of heat is generated by friction. The heat dissipation system inside the brake disc 5 dissipates the heat from the brake disc 5, and the heat on the friction plate 11 is conducted through the heat dissipation column 18 and the heat dissipation plate 17, while increasing the heat dissipation area, so that the heat passes quickly. The heat dissipation layer 9 dissipates heat. When the friction plate 11 needs to be replaced regularly, the plug rod 16 is pulled outward, and the plug rod 16 drives the connecting block 15 to squeeze the compression spring 14 outward, so that the plug rod 16 leaves the inside of the connecting rod 12, and then the connecting rod 12 leaves the inside of the connecting ring 10. The friction plate 11 can be removed for replacement, and then the new friction plate 11 is put back in place, and then the plug rod 16 is released. At this time, the compression spring 14 provides a reverse force to drive the plug rod 16 to slide upward through the connecting block 15, so that one end of the plug rod 16 passes through the connecting rod 12, thereby installing and fixing the friction plate 11. The device does not need to replace the entire brake pad, saving materials and reducing economic losses.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pneumatic disc brake, comprising a bracket (1), a pneumatic piston (2), a vent pipe (3), a piston body (4) and a brake disc (5), characterized in that: The front end of the bracket (1) is fixedly connected to a pneumatic piston (2), one end of the pneumatic piston (2) is fixedly connected to a vent pipe (3), a piston body (4) is provided inside the pneumatic piston (2), a brake disc (5) is provided at the front end of the bracket (1), one end of the piston body (4) away from the vent pipe (3) is fixedly connected to a gasket (6), one end of the gasket (6) away from the piston body (4) is fixedly connected to a back plate (7), one end of the back plate (7) away from the gasket (6) is fixedly connected to an interlayer (8), one end of the interlayer (8) away from the back plate (7) is fixedly connected to a heat dissipation layer (9), and one end of the heat dissipation layer (9) away from the interlayer (8) is fixedly connected to a heat dissipation layer (9). A connecting ring (10), wherein a friction plate (11) is provided at one end of the connecting ring (10) away from the heat dissipation layer (9), and a connecting rod (12) is fixedly connected to the end of the friction plate (11) close to the connecting ring (10). Placement grooves (13) are provided on the inner sides of the upper and lower ends of the connecting ring (10), and a compression spring (14) is fixedly connected inside the placement groove (13). One end of the compression spring (14) is fixedly connected to a connecting block (15), and one end of the connecting block (15) is fixedly connected to an insertion rod (16). A heat dissipation plate (17) is fixedly connected to the inner wall of the connecting ring (10), and one end of the heat dissipation plate (17) away from the heat dissipation layer (9) is fixedly connected to a heat dissipation column (18).

2. The pneumatic disc brake according to claim 1, characterized in that: The number of the pneumatic pistons (2) is two, the number of the ventilation pipes (3) is two, and the number of the piston bodies (4) is two.

3. The pneumatic disc brake according to claim 1, characterized in that: The brake disc (5) is located between two friction plates (11), the number of the gaskets (6) is two, and the number of the back plates (7) is two.

4. The pneumatic disc brake according to claim 1, characterized in that: The number of the interlayers (8) is two, the end of the heat dissipation layer (9) away from the interlayer (8) is fixedly connected to a heat dissipation plate (17), the number of the friction plates (11) is two, and one end of the connecting rod (12) is located inside the connecting ring (10).

5. The pneumatic disc brake according to claim 1, characterized in that: The outer side of the connecting block (15) is slidably connected to a placement groove (13); the insertion rod (16) has an inverted "T" shape; one end of the insertion rod (16) passes through the connecting rod (12); and one end of the heat dissipation column (18) away from the heat dissipation plate (17) is in contact with the surface of one end of the friction plate (11).

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