CN106004819B - car brake - Google Patents

Abstract

The invention discloses an automobile brake, which is characterized by comprising a rotating shaft and a brake disc arranged on the rotating shaft, wherein a brake mechanism is arranged on the brake disc, the brake structure comprises a shell, a connecting pipe is arranged on the shell, the connecting pipe is connected with a pressure supply device, an annular sliding hole is formed in the shell, the brake disc assembly is connected with an elastic part, the brake disc assembly comprises an annular mounting seat which is connected with the sliding hole in a sliding and sealing mode, a brake pad is arranged on the mounting seat, a sucking disc is arranged on the brake block to further increase the pressure on the brake pad, so that the friction force is improved, a hollow cavity is arranged in the brake disc, a cylindrical heat dissipation part is arranged at the center of the brake disc, a heat dissipation cavity is arranged in the heat dissipation part, the hollow cavity is communicated with the heat dissipation cavity, capillary porous materials are arranged on the inner walls. The invention solves the problems that the brake effect is difficult to effectively improve and the heat dissipation effect is poor in the existing brake.

Description

car brake

technical field

The invention relates to the field of automobile braking, more specifically, it relates to an automobile brake.

Background technique

Braking, also known as braking, refers to the action of stopping or reducing the speed of running locomotives, vehicles and other means of transportation or machinery. The general principle of braking is to fix a wheel or disc on the high-speed shaft of the machine, install a corresponding brake shoe, belt or disc on the machine base, and make it generate braking torque under the action of external force. The brake device is also a mechanical brake device that can slow down the speed of the vehicle, also known as a reducer. To put it simply: the brake pedal of the car is under the steering wheel. If you step on the brake pedal, the brake lever will be linked and pressed, and the brake pads transmitted to the brake drum will block the brake wheel, so that the car will slow down or stop running.

Traditional brakes rely solely on pressure to generate friction, and then generate a reverse dynamic torque, thereby achieving the braking effect. However, due to the limited friction area of traditional brakes, the improvement of braking effect is limited. At the same time, traditional brakes rely entirely on passive heat dissipation. not good.

In order to solve the above problems, the present invention provides an automobile brake.

Contents of the invention

In view of the deficiencies in the prior art, the object of the present invention is to provide an automobile brake, which can effectively improve the braking effect and has the advantage of rapid heat dissipation.

In order to achieve the above object, the present invention provides the following technical solutions: a car brake, comprising a rotating shaft and a brake disc mounted on the rotating shaft, a braking mechanism is installed on the braking disc, the braking structure includes a housing, the housing The body is provided with a connecting pipe, the connecting pipe is connected with a pressure supply device, the housing is symmetrically provided with annular sliding holes, and the housing is connected with an annular symmetrically disposed brake pad assembly, the brake pad assembly An elastic member is connected to restore it to its original position. The brake pad assembly includes an annular mounting seat that is slidably and sealingly connected with the sliding hole, and an annular brake pad is installed on the mounting seat. The brake pads are connected by screws; the annular brake pads are divided into an annular first sucker part, an annular brake part and an annular second sucker part in turn from large to small in diameter, and the first sucker part and the second sucker part The two suction cup parts are made of hard rubber, the first suction cup part and the second suction cup part are provided with suction cups, and the positions corresponding to the brake discs and the brake pads are provided with annular smooth first suction cups Belt, brake band and smooth second suction cup belt, the brake disc is provided with a hollow cavity, the center of the brake disc is provided with a cylindrical heat dissipation part, and the heat dissipation part is provided with a heat dissipation cavity, and the hollow cavity and the The heat dissipation cavity is connected, and capillary porous material is arranged on the inner wall of the hollow cavity and the raised cavity, and water is adsorbed on the capillary porous material, and the hollow cavity and the heat dissipation cavity are set under negative pressure.

By adopting the above technical scheme, the ring-shaped brake pad is installed on the mounting seat and is slid and sealedly connected with the sliding hole on the housing. Usually, the mounting seat is connected with a spring for restoring it to its original position. When the pressure supply device passes through When the connecting pipe supplies pressure to the housing, the pressure will push the brake pad assembly to move because the pressure is greater than that of the spring. There are the first suction cup part and the second suction cup part. When the rest of the first suction cup belt and the second suction cup belt are in contact, the air in the suction cup is extruded due to extrusion, so the pressure in the suction cup further decreases, so due to the pressure The poor effect can promote the increase of the pressure on the brake pads, thereby generating a lot of pressure on the brake discs on both sides. At the same time, because the friction area is much larger than that of traditional brakes, the friction generated is also corresponding Increased, so it has a good braking effect. However, at the same time, intense friction generates a large amount of heat. If the heat cannot be discharged in time, the temperature of the braking environment will rise, which will cause damage to the brake pads due to high temperature, and is not conducive to the long-term use of the brakes. In order to solve this problem, a hollow cavity is provided in the brake disc, and a heat dissipation part is provided in the center of the brake disc, and the heat dissipation part also has a heat dissipation chamber inside. And the hollow cavity communicates with the cooling cavity, and at the same time, a layer of capillary porous material is arranged on the inner wall thereof, and water is adsorbed thereon. Therefore, when the brake bands and brakes generate heat, the heat generated can evaporate the water in the hollow cavity, and the evaporated water moves to the end of the cold section, that is, to the heat dissipation cavity. In the hollow cavity, at this time, due to the centrifugal effect of the brake disc, the movement of water to the brake band can be accelerated, so that the heat transfer can be completed more quickly through the evaporation and condensation of water, thereby effectively reducing the temperature in the brake space.

The present invention is further provided that: the pressure supply device can be an automobile air supply system or an automobile hydraulic system.

By adopting the above-mentioned technical scheme, that is to say, both high-pressure air and high-pressure oil can be used to provide power for the brake pad assembly, so that existing vehicles can be conveniently refitted with low-cost brakes. The air pressure has the advantage of simple structure, and the oil pressure It has the advantage of providing great power.

The present invention is further provided that: the elastic member is a spring.

By adopting the above technical solution, the brake pad assembly is connected through the spring. When the brake contacts, due to the elastic force of the spring, the spring can be restored to its original position, so that the brake pad and the brake band cannot be in contact, so that the brake can be released. purpose, and the spring has the advantages of convenient material selection and low price.

In the present invention, it is further provided that fins are arranged on the heat dissipation part.

By adopting the above technical scheme, the fins are arranged on the heat dissipation part, which can further increase the contact area between the heat dissipation part and the air, thereby greatly enhancing the heat exchange capability, and making the heat generated during the braking process faster and more rapid. let go.

The present invention is further set as: the brake band is evenly distributed with protrusions.

By adopting the above technical solution, the protrusions are provided on the brake band to further increase the frictional force between the brake pad and the brake band, thereby generating greater dynamic torque and achieving a better braking effect.

In summary, the present invention has the following beneficial effects: the present invention enhances the braking effect by increasing the contact area between the brake pad and the brake disc, and at the same time dissipates the heat during the braking process in time through a structure similar to a heat pipe, Thereby reducing the influence of the heat generated during braking on the brake.

Description of drawings

Fig. 1 is the structural representation of embodiment.

Figure 2 Schematic diagram of the brake mechanism.

Fig. 3 is a sectional view along A-A direction in Fig. 2 .

Fig. 4 is a schematic diagram of the structure of the brake disc.

Fig. 5 is a left side view of the brake disc.

Fig. 6 is a cross-sectional view along B-B in Fig. 5 .

In the figure: 1, rotating shaft; 2, brake disc; 3, shell; 4, connecting pipe; 5, pressure supply device; 6, sliding hole; 7, elastic member; 8, mounting seat; 9, brake pad; 10, Screw; 11, first sucker part; 12, brake part; 13, second sucker part; 14, first sucker band; 15, brake band; 16, second sucker band; 17, hollow cavity; 18, heat dissipation part; 19. Heat dissipation chamber; 20. Capillary porous material; 21. Fin; 22. Protrusion; 23. Suction cup.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

Embodiment: a kind of automobile brake, as shown in Figure 1, comprises rotating shaft 1, and circular brake disk 2 is installed on rotating shaft 1, and brake structure is installed on brake disk 2, and braking mechanism comprises a casing 3, and casing 3 A connecting pipe 4 is arranged on it, and the connecting pipe 4 is connected with a pressure supply device 5 (not shown in the figure), where the pressure supply device 5 can be an automobile air supply system or a hydraulic system of an automobile.

As shown in Figure 2, Figure 3 and Figure 4, two annular sliding holes 6 are symmetrically arranged on the housing 3, the sliding holes 6 and the mounting seat 8 are slidingly and sealed connected, and the mounting seat 8 is braked by a screw 10. Plate 9 is fixedly connected on the brake pad 9 . The brake pad 9 is an annular brake pad 9, and the diameter of the brake pad 9 is divided into an annular first sucker portion 11, an annular brake portion 12, and an annular second sucker portion 13, the first sucker portion 11 and the second sucker portion 13 from large to small in diameter. The two suction cup parts 13 are made of hard rubber, the first suction cup part 11 and the second suction cup part 13 are provided with suction cups, and the position corresponding to the brake disc 2 and the brake pad 9 is provided with an annular smooth first suction cup belt 14, Brake band 15 and smooth second suction band 16.

As shown in Figure 5 and Figure 6, the brake disc 2 is provided with a hollow cavity 17, the center of the brake disc 2 is provided with a cylindrical cooling part 18, and the cooling part 18 is provided with a cooling cavity 19, the hollow cavity 17 and the cooling cavity 19 A capillary porous material 20 is arranged on the inner wall of the cavity connecting the hollow cavity 17 and the protrusion 22 , and the capillary porous material 20 absorbs water, and the hollow cavity 17 and the heat dissipation cavity 19 are set under negative pressure.

The ring-shaped brake pad 9 is installed on the mounting seat and is slidably connected with the sliding hole 6 on the housing 3. Usually, the mounting seat 8 is connected with a spring for restoring it to its original position. When the pressure supply device 5 passes through the connection When the tube 4 supplies pressure to the housing 3, because the effect of the pressure is greater than that of the spring, the pressure pushes the assembly of the brake pad 9 to move. Since the first suction cup part 11 and the second suction cup part 13 are arranged on the brake pad 9, when the rest of the first suction cup belt 14 and the second suction cup belt 16 contact the process, the air in the suction cup will be extruded due to extrusion, thus The pressure in the suction cup is further reduced, so due to the effect of the pressure difference, the pressure on the brake pad 9 can be increased, thereby generating a large pressure on the brake disc 2 on both sides, and because the friction area is compared with the traditional brake pad The area of the brake pad is much larger, so the friction force generated is correspondingly increased, so it has a good braking effect. However, at the same time, intense friction generates a large amount of heat. If the heat cannot be discharged in time, the temperature of the braking environment will rise, which will cause damage to the brake pad 9 due to high temperature, and is not conducive to the long-term use of the brake. . In order to solve this problem, a hollow cavity 17 is provided in the brake disc 2, and a heat dissipation part 18 is provided in the center of the brake disc 2, and a heat dissipation cavity 19 is also provided inside the heat dissipation part 18. And the hollow cavity 17 communicates with the cooling cavity 19, and at the same time, a layer of capillary porous material 20 is arranged on its inner wall, and water is adsorbed thereon. Therefore, when the brake belt 15 brakes and generates heat, the heat generated can evaporate the water in the hollow cavity 17, and the evaporated water moves to the end of the cold section, that is, to the heat dissipation chamber 19, and the water vapor becomes water after pre-cooling, and the water is due to capillary action. will enter the hollow cavity 17. At this time, due to the centrifugal effect of the brake disc 2, the movement of water to the brake band 15 can be accelerated, so that the heat can be transferred more quickly through the evaporation and condensation of water, thereby effectively reducing the amount of water in the brake space. temperature.

The above descriptions are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention should also be regarded as the protection scope of the present invention.

Claims (3)

1. automotive brake, it is characterised in that：Brake disc including shaft and in shaft is symmetrically pacified on the brake disc Equipped with braking mechanism, brake structure includes housing, and the housing is equipped with connecting tube, and the connecting tube is connected with pressure supply device, The slide opening of annular is symmetrically arranged on the housing, the housing is connected with the brake block component of annular, the brake block component It is connected with for it to be made to restore the elastic component of initial position, the brake block component includes what is be tightly connected with slide opening sliding Annular mounting base, the brake block of annular is equipped in the mounting base, and the mounting base is connected by screw with the brake block； The brake block diameter of the annular is divided into the second of the first sucking disk part of annular, the brake portion of annular and annular from big to small Sucking disk part, first sucking disk part and second sucking disk part are made of vulcanie, first sucking disk part and described second Sucker is provided in sucking disk part, smooth first that annular is provided on brake disc position corresponding with the brake block inhales Dribbling, brake ribbon and the second smooth sucker band are provided with hollow cavity in the brake disc, are set on the brake disc center There is cylindrical heat-radiating portion, heat dissipation cavity is provided in the radiating part, the hollow cavity is connected with the heat dissipation cavity, the hollow cavity With being provided with capillary-porous material on raised cavity wall, the capillary-porous material is adsorbed with water, the hollow cavity and described dissipates Hot chamber is set in negative pressure；The pressure supply device is automobile air supply system or car hydraulics；The elastic component is spring.

2. automotive brake according to claim 1, it is characterised in that：Fin is provided on the radiating part.

3. automotive brake according to claim 1, it is characterised in that：The brake ribbon is evenly distributed with protrusion.