arm disc brake

Abstract

This utility model discloses a disc brake, belonging to the technical field of brake devices. Specifically, it includes a base with two hinged seats fixedly connected to it. A brake arm is hinged to each hinged seat, and a brake frame is fixedly connected to each brake arm. Brake shoes are fixedly connected to opposite sides of each brake frame. A heat dissipation mechanism is provided on the other side of each brake frame for dissipating heat from the brake shoes. The heat dissipation mechanism includes a heat absorption coil and a heat exchange coil. The heat absorption coil is fixedly connected to the brake frame, and the liquid inlet end of the heat exchange coil is connected to the liquid outlet end of the heat absorption coil. The liquid outlet end of the heat exchange coil and the liquid inlet end of the heat absorption coil are connected via a power assembly. This utility model can quickly dissipate heat from the brake shoes, avoiding the problem of reduced braking torque and poor braking effect due to high temperatures, thus improving the service life of the brake shoes.

Description

Technical Field

[0001] This utility model belongs to the field of brake technology, specifically relating to a boom disc brake. Background Technology

[0002] The boom disc brake is a mechanical device that relies on electro-hydraulic drive and uses disc friction as the braking method. It is widely used in heavy-duty fields such as cranes, mining equipment, and port machinery.

[0003] The prior art discloses a Chinese utility model patent with application number CN2023216688209, which discloses an electro-hydraulic boom disc brake, comprising: a pusher with a spring shaft disposed above the pusher; a compensation part hinged to a first hinge shaft; a fixing part disposed at the lower end of the pusher; a braking part disposed on the fixing part, with its top end hinged to the compensation part; and a brake base disposed at the bottom of the brake part. This utility model's electro-hydraulic boom disc brake, through the inclusion of a brake base, facilitates the maintenance and replacement of the braking part, reducing the difficulty and time cost of maintenance work. It also features a simple structure, easy and stable installation, and low manufacturing cost.

[0004] The existing technology has some shortcomings: the brake shoes achieve braking by generating friction through squeezing the brake disc. In this process, mechanical energy is converted into heat energy, which causes the temperature of the brake shoes and brake disc to rise rapidly. This leads to brake fade, reduced braking torque, and poor braking effect. It also shortens the service life of the brake shoes. Therefore, it is necessary to provide a boom disc brake to solve the above-mentioned technical problems. Utility Model Content

[0005] To address the problems mentioned in the background section, this invention provides a boom disc brake that can quickly dissipate heat from the brake shoes, preventing weakened braking torque and reduced braking performance due to high temperatures, thus improving the service life of the brake shoes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a disc brake, comprising a base, on which two hinge seats are fixedly connected, a brake arm is hinged to the hinge seats, a brake frame is fixedly connected to the brake arm, and brake shoes are fixedly connected to one side of each of the two brake frames facing each other.

[0007] A heat dissipation mechanism is provided on the other side of the brake frame for dissipating heat from the brake shoes. The heat dissipation mechanism includes a heat absorption coil and a heat exchange coil. The heat absorption coil is fixedly connected to the brake frame. The liquid inlet end of the heat exchange coil is connected to the liquid outlet end of the heat absorption coil. The liquid outlet end of the heat exchange coil and the liquid inlet end of the heat absorption coil are connected through a power assembly.

[0008] Preferably, the space between the brake frame and the brake pad is filled with thermal grease.

[0009] Preferably, the power assembly includes a liquid storage tank and a circulation pump. A liquid injection pipe is fixedly connected to the liquid storage tank. The liquid return port of the liquid storage tank is connected to the liquid outlet of the heat exchange coil. The liquid outlet of the liquid storage tank is connected to the liquid inlet of the circulation pump. The liquid outlet of the circulation pump is connected to the liquid inlet of the heat absorption coil.

[0010] Preferably, the liquid storage cylinder is provided with a transparent liquid level tank.

[0011] Preferably, a heat sink is fixedly connected to the brake frame at an angle, the heat sink is provided with a heat dissipation cavity, and a cooling fan is fixedly connected to one side of the heat dissipation cavity.

[0012] Preferably, heat exchange coils are fixedly fitted with heat dissipation fins on their outer side, and the heat dissipation fins are fixedly connected to the heat dissipation frame.

[0013] Preferably, both the heat absorption coil and the heat exchange coil are arranged in an "S" shape.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention utilizes heat-absorbing and heat-exchange coils to rapidly dissipate heat from the brake shoes during the frictional heating process between the brake shoes and the brake disc. This prevents the brake shoes from experiencing reduced braking torque and poor braking performance due to high temperatures, thereby extending their service life. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the rotating frame of this utility model;

[0019] Figure 3 This is a top view of the brake frame structure of this utility model;

[0020] In the diagram: 1. Base; 2. Hinge seat; 3. Brake arm; 4. Brake frame; 5. Brake shoe; 6. Heat absorption coil; 7. Heat exchange coil; 8. Liquid storage tank; 9. Liquid injection pipe; 10. Transparent liquid level tank; 11. Heat dissipation frame; 12. Cooling fan; 13. Heat dissipation fins; 14. Circulation pump. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example

[0023] Please see Figure 1-3 This embodiment provides the following technical solution: a disc brake, including a base 1, on which two hinge seats 2 are fixedly connected, and a brake arm 3 is hinged to the hinge seat 2. A brake frame 4 is fixedly connected to the brake arm 3, and brake shoes 5 are fixedly connected to the opposite side of the two brake frames 4. In some embodiments, when the power system starts the hydraulic station, the oil pump pressurizes the hydraulic oil and delivers it to the brake caliper piston chamber. The piston pushes outward against the spring force, causing the brake shoes 5 to separate from the brake disc, and the equipment operates normally. When the hydraulic system is de-energized or depressurized, the piston retracts under the action of the return spring force, and the brake shoes 5 press against the brake disc. The kinetic energy is consumed through friction, thereby achieving deceleration or stopping. Since the mechanism of the disc brake driving the two brake arms 3 is a relatively mature technology, the structure of the disc brake driving the brake arms 3 is not described in detail here.

[0024] A heat dissipation mechanism is provided on the other side of the brake frame 4 to dissipate heat from the brake shoes 5. The heat dissipation mechanism includes a heat absorption coil 6 and a heat exchange coil 7. The heat absorption coil 6 is fixedly connected to the brake frame 4. The liquid inlet end of the heat exchange coil 7 is connected to the liquid outlet end of the heat absorption coil 6. The liquid outlet end of the heat exchange coil 7 and the liquid inlet end of the heat absorption coil 6 are connected through a power component. Through the heat absorption coil 6 and the heat exchange coil 7, the brake shoes 5 can be quickly cooled during the friction and heating process between the brake shoes 5 and the brake disc. This avoids the problem of reduced braking torque and poor braking effect caused by high temperature, and improves the service life of the brake shoes 5.

[0025] In some embodiments, the brake frame 4 includes a back plate and two support plates. The back plate is fixedly connected to the brake shoe 5. Two support plates are fixedly connected to the other side of the back plate. The two support plates are fixedly connected to each other by a fixed shaft. The two ends of the fixed shaft are fixedly connected to the brake arm 3. The heat dissipation mechanism is located on the outside of the back plate.

[0026] The space between the brake frame 4 and the brake shoe 5 is filled with heat-dissipating silicone grease. During the process of friction and heat generation between the brake shoe 5 and the brake disc, the heat on the brake shoe 5 can be transferred to the brake frame 4, which is beneficial for heat dissipation of the brake shoe 5.

[0027] The power assembly includes a liquid storage tank 8 and a circulation pump 14. A liquid injection pipe 9 is fixedly connected to the liquid storage tank 8. The return port of the liquid storage tank 8 is connected to the outlet of the heat exchange coil 7. The outlet of the liquid storage tank 8 is connected to the inlet of the circulation pump 14. The outlet of the circulation pump 14 is connected to the inlet of the heat absorption coil 6. Through the liquid storage tank 8 and the circulation pump 14, the coolant can circulate in the heat absorption coil 6 and the heat exchange coil 7. During the flow of the coolant, heat can be absorbed from the brake frame 4, improving the heat dissipation efficiency of the brake shoe 5.

[0028] A transparent liquid level tank 10 is provided on the liquid storage tank 8. Through the transparent liquid level tank 10, the circulation status of the coolant in the liquid storage tank 8 can be observed in real time, and coolant can be added as needed.

[0029] A heat sink 11 is fixedly connected to the brake frame 4 at an angle. The distance between the top of the heat sink 11 and the brake frame 4 is less than the distance between the bottom of the heat sink 11 and the brake frame 4. A heat sink cavity is provided on the heat sink 11. A cooling fan 12 is fixedly connected to one side of the heat sink cavity. The cooling fan 12 can make the cold air flow upward at an angle. After passing through the heat sink cavity, the cold air flows through the heat exchange coil 7, which can have a heat exchange effect on the coolant circulating in the heat exchange coil 7, thereby cooling the coolant.

[0030] Heat exchange coil 7 is fixedly fitted with heat dissipation fins 13 on its outer side. The heat dissipation fins 13 are fixedly connected to the heat dissipation frame 11. Through the heat dissipation fins 13, the temperature of the coolant in the heat exchange coil 7 can be better absorbed and diffused. During the process of the airflow generated by the cooling fan 12 passing through the heat dissipation fins 13, the heat dissipation fins 13 and the heat exchange coil 7 can be cooled, thereby further improving the heat dissipation efficiency of the brake shoe 5.

[0031] In some embodiments, both the heat absorption coil 6 and the heat exchange coil 7 are arranged in an "S" shape, which can increase the time that the coolant flows in the heat absorption coil 6 and the heat exchange coil 7, thereby improving the heat absorption effect of the heat absorption coil 6 and the cooling effect of the heat exchange coil 7.

[0032] The working principle of this utility model is as follows: During the process of friction and heat generation between the two brake shoes 5 and the brake disc, most of the heat on the brake shoes 5 will be transferred to the brake frame 4. During the operation of the circulation pump 14, the coolant will circulate in the heat absorption coil 6 and the heat exchange coil 7. During the circulation of the coolant, the heat on the brake frame 4 can be absorbed. The coolant that has absorbed the heat enters the heat exchange coil 7 for circulation. The heat dissipation fins 13 will also absorb the heat of the coolant in the heat exchange coil 7. During the operation of the cooling fan 12, the cold air is blown through the heat dissipation cavity to the heat exchange coil 7 and the heat dissipation fins 13. The heat on the heat exchange coil 7 and the heat dissipation fins 13 is reduced by the absorption of the cold air, thereby improving the heat dissipation efficiency of the brake shoes 5.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A disc brake, characterised in that: Includes a base (1), on which two hinge seats (2) are fixedly connected, and a brake arm (3) is hinged on the hinge seat (2). A brake frame (4) is fixedly connected on the brake arm (3), and brake shoes (5) are fixedly connected on opposite sides of the two brake frames (4). A heat dissipation mechanism is provided on the other side of the brake frame (4) for dissipating heat from the brake pads (5). The heat dissipation mechanism includes a heat absorption coil (6) and a heat exchange coil (7). The heat absorption coil (6) is fixedly connected to the brake frame (4). The liquid inlet of the heat exchange coil (7) is connected to the liquid outlet of the heat absorption coil (6). The liquid outlet of the heat exchange coil (7) and the liquid inlet of the heat absorption coil (6) are connected by a power assembly.

2. The arm disc brake of claim 1, wherein: The space between the brake frame (4) and the brake pad (5) is filled with heat-dissipating silicone grease.

3. The arm disc brake of claim 1, wherein: The power assembly includes a liquid storage tank (8) and a circulation pump (14). A liquid injection pipe (9) is fixedly connected to the liquid storage tank (8). The return port of the liquid storage tank (8) is connected to the liquid outlet of the heat exchange coil (7). The liquid outlet of the liquid storage tank (8) is connected to the liquid inlet of the circulation pump (14). The liquid outlet of the circulation pump (14) is connected to the liquid inlet of the heat absorption coil (6).

4. The arm disc brake of claim 3, wherein: A transparent liquid level tank (10) is provided on the liquid storage cylinder (8).

5. The arm disc brake of claim 1, wherein: A heat sink (11) is fixedly connected to the brake frame (4) at an angle. A heat sink cavity is provided on the heat sink (11), and a cooling fan (12) is fixedly connected to one side of the heat sink cavity.

6. The arm disc brake of claim 5, wherein: The heat exchange coil (7) is fixedly fitted with heat dissipation fins (13), which are fixedly connected to the heat dissipation frame (11).

7. The arm disc brake according to claim 1, characterized in that: Both the heat absorption coil (6) and the heat exchange coil (7) are arranged in an "S" shape.

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