Disc brake cooling device

Abstract

A disc brake cooling device is characterized in that a through groove (2.4) is formed in the middle of a cooling box (2) and divides the cooling box (2) into a left half and a right half, the rear portion of a brake pad (1) is attached to the left half of the cooling box (2), a left cavity and a right cavity divided by the through groove (2.4) in the cooling box (2) are vertically communicated, and a circulation groove (2.1) is formed in the communicated position of the upper portions of the left cavity and the right cavity. A liquid inlet (2.2) and a liquid outlet (2.3) are formed in the upper portion and the lower portion of the right half side of the cooling box (2) respectively, the cooling box cover (3) seals the cooling box (2), and a through hole consistent with the through groove (2.4) in shape is formed in the middle of the cooling box cover (3). The fan (8) directly blows and cools one side of the right half side of the box cover (3); the brake pad (1) is connected with the bracket (7) through a screw; the brake pad is simple in structure and convenient to assemble, and the temperature of the brake pad can be reduced when the disc brake works.

Description

Technical Field

[0001] The utility model relates to a cooling device, in particular to a disc brake cooling device, belonging to the technical field of disc brake refrigeration. Background Art

[0002] As a key component of the belt conveyor safety brake system, the working reliability of the disc brake is directly related to the safety performance of the belt conveyor and affects the safe production of the mine. Once the disc brake fails, it will affect the production progress at the least and cause a serious accident at the worst. When the current disc brake is braked for a long time, the friction heat generated by the friction pair is large, causing material wear and reduced friction performance, while shortening the service life of the disc brake.

[0003] A Chinese utility model patent disclosed on April 20, 2021, with a publication number of CN213017391U, for a "brake pad assembly for a disc brake with bidirectional cooling", passes coolant into the cooling groove of the assembly to perform bidirectional cooling on the friction surface and the pad surface close to the piston. However, the coolant still flows in the cooling groove when the brake is not heated up, which can easily cause energy waste. A Chinese invention patent disclosed on November 29, 2019, with a publication number of CN107554498B, for an "electric disc brake cooling device and method thereof", can use braking energy to cool the braking mechanism and can assist braking during emergency braking. However, the friction between the conical friction wheel and the disc body will increase the temperature of the disc body, and the cooling effect of the fan blade is not significant. Summary of the invention

[0004] In view of the problems existing in the prior art, the utility model provides a disc brake cooling device, which has a simple structure and is easy to assemble, and can reduce the temperature of the brake pad when the disc brake is working.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a disc brake cooling device, including a brake pad, a cooling box and a bracket, wherein a through groove is provided in the middle of the cooling box, and the through groove divides the cooling box into left and right halves, and the rear of the brake pad fits the left half of the cooling box, and the left and right cavities divided by the through groove in the cooling box are connected up and down, wherein a flow groove is provided at the upper connecting part of the left and right cavities, and a liquid inlet and a liquid outlet are respectively installed on the upper and lower sides of the right half of the cooling box, and the cooling box is closed by a cooling box cover, and a through hole consistent with the shape of the through groove is provided in the middle of the cooling box cover; a fan directly blows one side of the right half of the cooling box cover, and the brake pad is connected to the bracket by screws, and two of the screws of the brake pad pass through the through groove to connect the bracket; a bottom interlayer, a steel back plate and a brake pad are arranged in sequence between the cooling box cover and the bracket; and coolant is filled in the left and right cavities of the cooling box.

[0006] Furthermore, the screws of the bracket of the utility model pass through the brake pad, the steel back plate, the bottom interlayer, the cooling box cover and the cooling box in sequence and then connect the brake pad.

[0007] Furthermore, the bracket of the utility model is in a concave shape, the middle part of the concave shape is fixed with a motor by screws, the motor drive is connected to the fan, and the motor is connected to a power source by a wire.

[0008] Furthermore, the inner and outer surfaces of the right half of the cooling box cover of the utility model are both provided with heat conducting fins.

[0009] Furthermore, the connection between the motor and the wire of the utility model is sealed and waterproof by glue.

[0010] Compared with the prior art, the utility model provides a through groove in the middle of the cooling box, which divides the cooling box into left and right halves. The left and right cavities divided by the through groove in the cooling box are connected up and down, and a circulation groove is provided at the upper connecting part of the left and right cavities. The circulation groove can make the coolant circulate in the cooling box in one direction, and the left and right cavities of the cooling box are filled with coolant through the liquid inlet. The coolant in the left cavity can reduce the temperature of the brake pad. After the temperature of the brake pad is reduced, the density of the coolant in the left cavity will decrease after the temperature is increased, and the coolant in the right cavity enters the left cavity from the bottom of the cooling box. At this time, the temperature of the coolant in the right cavity is increased, and the temperature of the coolant in the right cavity of the cooling box is promoted to decrease by continuously rotating the fan. The utility model can ensure that the brake pad is fully cooled, and at the same time, the fan continuously rotates to promote the temperature of the coolant in the right cavity of the cooling box to decrease, thereby improving the cooling efficiency, ensuring that the brake disc is stable and reliable, and effectively increasing the service life of the disc brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is an exploded view of the utility model;

[0012] Figure 2 This is a structural diagram of a cooling box of the utility model.

[0013] 1. Brake pad, 2. Cooling box, 2.1. Circulation slot, 2.2. Liquid inlet, 2.3. Liquid outlet, 2.4. Through slot, 3. Cooling box cover, 4. Bottom interlayer, 5. Steel back plate, 6. Brake pad, 7. Bracket, 8. Fan, 9. Motor, 9.1. Wire. DETAILED DESCRIPTION

[0014] The utility model will be further described below in conjunction with the accompanying drawings.

[0015] like Figure 1 and Figure 2As shown, a disc brake cooling device comprises a brake pad 1, a cooling box 2 and a bracket 7, wherein a through groove 2.4 is provided in the middle of the cooling box 2, and the through groove 2.4 divides the cooling box 2 into left and right halves, the rear of the brake pad 1 fits the left half of the cooling box 2, and the left and right cavities divided by the through groove 2.4 in the cooling box 2 are connected up and down, and the left and right cavities of the cooling box 2 are filled with coolant, wherein a flow groove 2.1 is provided at the upper connecting part of the left and right cavities, and the flow groove 2.1 can control the flow direction of the coolant to ensure that the coolant flows from the left cavity to the right cavity through the flow groove 2.1, and a liquid inlet 2.2 and a liquid outlet 2.3 are respectively installed at the upper and lower parts of the right half of the cooling box 2, so that it can be filled more conveniently. and discharge the coolant; the cooling box cover 3 closes the cooling box 2, and the cooling box cover 3 can effectively reduce the processing difficulty. A through hole consistent with the shape of the through slot 2.4 is opened in the middle of the cooling box cover 3; the fan 8 blows directly on the right half of the cooling box cover 3 to cool the coolant in the cavity on the right side of the cooling box 2; the brake pad 1 is connected to the bracket 7 by screws, and two of the screws of the brake pad 1 pass through the through slot 2.4 to connect the bracket 7, so that all components are connected more stably; through holes of the same size are opened on the brake pad 1, the bottom interlayer 4, the steel back plate 5 and the brake pad 6, and the screws of the bracket 7 pass through the brake pad 6, the steel back plate 5, the bottom interlayer 4, the cooling box cover 3 and the cooling box 2 in turn and then connect the brake pad 1.

[0016] The bracket 7 is in a concave shape, and a motor 9 is fixedly installed in the middle of the concave shape by screws. The motor 9 drives and connects to the fan 8, and the motor 9 is connected to the power supply through a wire 9.1.

[0017] In order to further optimize the working performance of the present application and further improve the heat dissipation efficiency, heat-conducting fins are provided on the inner and outer surfaces of the right half of the cooling box cover 3.

[0018] In order to prevent the wire 9.1 of the motor 9 from short-circuiting when encountering water, the connection between the motor 9 and the wire 9.1 is sealed with glue to prevent water leakage.

[0019] When the utility model is in use, the specific operations are as follows:

[0020] Before use, first check whether the coolant is expired and invalid. If it is invalid, open the liquid outlet 2.3 to drain the coolant, and then refill new coolant from the liquid inlet 2.2. When in use, the brake pad 1 and the disc body rub and heat up, and the brake pad 1 generates heat. The coolant in the left cavity of the cooling box 2 absorbs the heat of the brake pad 1 and cools the brake pad 1. At the same time, the heat enters from the left half of the cooling box 2 through conduction, and then heats the coolant in the left cavity of the cooling box 2. After the heated coolant temperature rises, it passes through the circulation slot 2.1 and enters the right cavity of the cooling box 2. The coolant in the right cavity enters the left cavity from the bottom of the cooling box 2. At this time, the temperature of the coolant in the right cavity is increased. By continuously rotating the fan, the temperature of the coolant in the right cavity of the cooling box 2 is promoted to decrease. The specific cooling method is to drive the fan 8 by the motor 9 to blow directly to the right half of the cooling box 2, so as to continuously cool the coolant in the right cavity of the cooling box 2. The coolant in the left cavity will enter the right cavity when the temperature rises. After the coolant in the right cavity cools down, it will re-enter the left cavity of the cooling box 2 from the bottom of the cooling box 2 to continue to absorb heat, and the cycle is repeated.

[0021] Because water has the characteristic of convection as a heat transfer method. Most of the heat is not transferred by conduction, but by the circulating convection of the fluid. The convection in the hydrothermal system, like the convection of water in a kettle sitting on a stove, is caused by the heating of the fluid in the gravitational field and the subsequent heat diffusion. The fluid is heated at the bottom of the circulation system. Heat is the energy that drives this system. The low-density heated fluid rises and is replaced by a higher-density cold fluid. The cold fluid is supplied by the edge of the system. Convection increases the temperature of the upper part of the system and reduces the temperature of the lower part of the system. Specifically in this application, with the help of the fluidity principle of the hydrothermal system, the brake pad 1 heats the coolant in the left cavity of the cooling box 2, and the fan 8 cools the coolant in the right cavity of the cooling box 2, allowing the coolant to circulate in the left and right cavities of the cooling box 2, thereby achieving rapid absorption and discharge of the heat generated by the brake pad 1. At the same time, this application uses a special coolant, which can further accelerate the flow rate of the hydrothermal system and effectively improve the stability and reliability of the dynamic disc.

[0022] In summary, the disc brake cooling device of the embodiment of the utility model ensures that the brake pad 1 is fully cooled by the one-way circulation of the coolant in the cooling box 2. At the same time, the motor 9 drives the fan 8 to rotate continuously, which promotes the reduction of the coolant temperature on the right side of the cooling box 2 and improves the cooling efficiency. It can ensure that the brake disc is stable and reliable, and can effectively increase the service life of the disc brake.

[0023] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A disc brake cooling device, comprising a brake pad (1), a cooling box (2) and a bracket (7), characterized in that: The cooling box (2) has a through groove (2.4) in the middle, the through groove (2.4) divides the cooling box (2) into two halves, the rear of the brake pad (1) fits the left half of the cooling box (2), the left and right cavities separated by the through groove (2.4) in the cooling box (2) are connected up and down, wherein a flow groove (2.1) is provided at the upper connecting part of the left and right cavities, the right half of the cooling box (2) is respectively provided with a liquid inlet (2.2) and a liquid outlet (2.3), and the cooling box cover (3) closes the cooling box (2), a through hole having the same shape as the through slot (2.4) is opened in the middle of the cooling box cover (3); a fan (8) blows directly to the right half of the cooling box cover (3); the brake pad (1) is connected to the bracket (7) by screws, and two of the screws of the brake pad (1) pass through the through slot (2.4) to connect to the bracket (7); a bottom interlayer (4), a steel back plate (5) and a brake pad (6) are arranged in sequence between the cooling box cover (3) and the bracket (7); and the left and right cavities of the cooling box (2) are filled with coolant.

2. A disc brake cooling device according to claim 1, characterized in that: The screws of the bracket (7) pass through the brake pad (6), the steel back plate (5), the bottom interlayer (4), the cooling box cover (3) and the cooling box (2) in sequence and are then connected to the brake pad (1).

3. A disc brake cooling device according to claim 1 or 2, characterized in that: The bracket (7) is in the shape of a concave letter, and a motor (9) is fixedly mounted in the middle of the concave letter by means of screws. The motor (9) drives and connects to the fan (8), and the motor (9) is connected to a power source via a wire (9.1).

4. A disc brake cooling device according to claim 3, characterized in that: Heat conducting fins are provided on the inner and outer surfaces of the right half of the cooling box cover (3).

5. A disc brake cooling device according to claim 3, characterized in that: The connection between the motor (9) and the wire (9.1) is sealed with glue to prevent water leakage.

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