Disc brake disc cooling device

Abstract

The present invention provides a disc brake disc cooling device, comprising a brake disc, a sealing hub and a sealing ring, wherein an annular cooling groove is arranged on the outer circumferential wall of the brake disc, the sealing hub is sleeved on the outer circumferential wall of the brake disc to seal the cooling groove to form a cooling water cavity, a water inlet pipe and a water outlet pipe are arranged on the sealing hub, and the sealing rings are respectively clamped between the brake disc and the sealing hub on both sides of the cooling groove, thereby solving the technical problem of poor cooling effect of the brake disc of the existing disc brake device.

Description

Technical Field

[0001] The present invention relates to the technical field of brake devices, and in particular to a disc brake disc cooling device. Background Art

[0002] Disc brakes consist of a disc brake pad connected to the wheel and a brake caliper on the edge of the disc. When braking, high-pressure brake oil pushes the brake pad on the brake caliper to clamp the disc brake pad, thereby producing a braking effect. Compared with drum brakes, disc brakes have better braking effects and less wear. The main advantages of disc brakes are that they can brake quickly when braking at high speeds, the heat dissipation effect is better than drum brakes, the stability of braking performance is good, and it is easy to install advanced electronic equipment such as ABS. Nowadays, disc brakes are widely used for front wheels, and some high-end cars are equipped with four-wheel disc brakes. The advantages are sensitive action, good heat dissipation, no need to adjust the brake clearance, and easy maintenance.

[0003] Disc brakes are divided into two types: ordinary disc brakes and ventilated disc brakes. Ventilated disc brakes have many circular ventilation holes drilled on the disc surface, or ventilation grooves cut on the end surface of the disc or prefabricated rectangular ventilation holes. Although ventilated disc brakes can achieve a certain cooling effect by using wind flow to cool, the cooling performance of the brake disc still needs to be further improved. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a disc brake disc cooling device to solve the technical problem that the brake disc cooling effect of the existing disc brake device is poor.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a disc brake disc cooling device, comprising a brake disc, a sealing hub and a sealing ring, the outer circumferential wall of the brake disc is provided with an annular cooling groove, the sealing hub is sleeved on the outer circumferential wall of the brake disc to seal the cooling groove to form a cooling water cavity, the sealing hub is provided with a water inlet pipe and a water outlet pipe arranged oppositely, and the sealing ring is clamped between the brake disc and the sealing hub on both sides of the cooling groove.

[0006] As an improved manner, a plurality of partitions are provided in the cooling groove of the brake disc, and the plurality of partitions are arranged at equal angles along the radial direction of the brake disc.

[0007] As an improved method, two sealing grooves are respectively provided on both sides of the cooling groove on the brake disc, each of the sealing grooves is provided with the sealing ring, a lubrication groove is provided between the two sealing grooves located on the same side of the cooling groove, and an oil filling port connected to the lubrication groove is provided on the sealing hub.

[0008] As an improved manner, it further comprises a brake caliper, the sealing hub is fixedly connected to the brake caliper, and the brake disc is arranged in a jaw of the brake caliper.

[0009] As an improved manner, a mounting hole is provided at the center of the brake disc, and a connecting flange is provided around the mounting hole.

[0010] As an improved manner, it further comprises a vehicle frame and a wheel axle, the brake caliper and the wheel axle are respectively mounted on the vehicle frame, and the wheel axle passes through the mounting hole.

[0011] As an improved method, it also includes a water circulation device, which includes a water tank and a water pump. The water outlet of the water tank is connected to the water inlet of the water pump, the water outlet of the water pump is connected to the water inlet pipe on the sealing hub, and the water outlet pipe on the sealing hub is connected to the water inlet of the water tank.

[0012] As an improved method, the brake disc includes a left brake pad and a right brake pad, both of which are disc-shaped. The left brake pad and the right brake pad are arranged opposite to each other and fixedly connected, and the cavity between the left brake pad and the right brake pad forms the cooling groove.

[0013] The technical effects achieved by adopting the above technical solution are:

[0014] 1. The brake disc can be cooled quickly by circulating cold water through the cooling water chamber inside the brake disc to take away the heat. Compared with the traditional cooling method, it can achieve better cooling effect and effectively avoid the occurrence of brake failure caused by excessive temperature due to friction between the brake disc and the brake caliper during braking. The brake device adopts water cooling to make the brake disc cool evenly as a whole, avoiding cracks due to excessive local temperature of the brake disc, thereby effectively extending the service life of the brake disc and reducing costs. The brake device has the characteristics of reliable operation, energy saving and environmental protection.

[0015] Since a plurality of partitions are arranged in the cooling groove of the brake disc, and the plurality of partitions are arranged at equal angles along the radial direction of the brake disc, the partitions can effectively support the two side walls of the brake disc to prevent the brake disc from being clamped and damaged. In addition, the cooling water flowing between the partitions can expand the cooling area of ​​the brake disc by the cooling water.

[0016] Since the brake disc is provided with two sealing grooves on both sides of the cooling groove, each of the sealing grooves is provided with the sealing ring, a lubrication groove is provided between the two sealing grooves on the same side of the cooling groove, and an oil filling port connected to the lubrication groove is provided on the sealing hub. Filling lubricating oil into the lubrication groove through the oil filling port can lubricate the relative rotation between the sealing ring and the sealing hub, thereby reducing the wear of the sealing ring. In addition, since double sealing rings are used for sealing, the sealing performance is enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0018] Figure 1 is a longitudinal cross-sectional view of the brake disc;

[0019] Figure 2 is a transverse cross-sectional view of the disc brake disc cooling device;

[0020] Figure 3 It is a schematic diagram of the external structure of the disc brake disc cooling device;

[0021] In the figure, 1-brake caliper, 2-brake disc, 20-cooling groove, 21-left brake pad, 22-right brake pad, 23-partition, 3-sealing hub, 30-sealing groove, 31-lubricating groove, 32-oil filling port, 33-water inlet pipe, 34-water outlet pipe, 4-sealing ring. DETAILED DESCRIPTION

[0022] Embodiment 1

[0023] like Figures 1 to 3 As shown, a disc brake disc cooling device includes a brake disc 2, a sealing hub 3 and a sealing ring 4. A mounting hole is provided at the center of the brake disc 2, and a connecting flange is provided around the mounting hole for connecting with the wheel hub.

[0024] An annular cooling groove 20 is provided on the outer circumferential wall of the brake disc 2. The sealing hub 3 is sleeved on the outer circumferential wall of the brake disc 2 to seal the cooling groove 20 to form a cooling water chamber. A plurality of partitions 23 are provided in the cooling groove 20 of the brake disc 2. The plurality of partitions 23 are arranged at equal angles along the radial direction of the brake disc 2. The partitions 23 can effectively support the two side walls of the brake disc 2 to prevent the brake disc 2 from being clamped. In addition, the cooling water flowing into the space between the partitions 23 can expand the cooling area of ​​the brake disc 2 by the cooling water.

[0025] The sealing hub 3 is provided with a water inlet pipe 33 and a water outlet pipe 34, which are arranged opposite to each other up and down. Preferably, the water inlet pipe 33 is arranged above the water outlet pipe 34. A sealing ring 4 is clamped and pressed between the brake disc 2 and the sealing hub 3 on both sides of the cooling groove 20. In this embodiment, two sealing grooves 30 are respectively provided on the brake disc 2 on both sides of the cooling groove 20, each sealing groove 30 is provided with a sealing ring 4, a lubrication groove 31 is provided between the two sealing grooves 30 located on the same side of the cooling groove 20, and an oil filling port 32 connected to the lubrication groove 31 is provided on the sealing hub 3, and a sealing plug is provided in the oil filling port 32. Lubricating oil is added to the lubrication groove 31 through the oil filling port 32, which can lubricate the relative rotation between the sealing ring 4 and the sealing hub 3, reduce the wear of the sealing ring 4, and in addition, since double sealing rings 4 are used for sealing, the sealing performance of the sealing ring 4 is enhanced.

[0026] The brake cooling device may also include a brake caliper 1, a vehicle frame, a wheel axle, and a water circulation device. The sealing hub 3 is fixedly connected to the brake caliper 1 by fasteners, and the brake disc 2 is arranged in the jaws of the brake caliper 1. The brake caliper 1 and the wheel axle are respectively mounted on the vehicle frame, and the wheel axle passes through the mounting hole to mount the brake disc 2. The water circulation device includes a water tank and a water pump. The water outlet of the water tank is connected to the water inlet of the water pump, the water outlet of the water pump is connected to the water inlet pipe 33 on the sealing hub 3, and the water outlet pipe 34 on the sealing hub 3 is connected to the water inlet of the water tank. The cooling water circulates through the cooling water cavity of the brake disc 2 through the water circulation device to cool the brake disc 2.

[0027] Embodiment 2

[0028] The structure of this embodiment is basically the same as that of the first embodiment, except that: Figure 2 As shown, the brake disc 2 includes a left brake pad 21 and a right brake pad 22, both of which are disc-shaped, and the left brake pad 21 and the right brake pad 22 are arranged opposite to each other and fixedly connected, and the cavity between the left brake pad 21 and the right brake pad 22 forms a cooling groove 20. The left brake pad 21 and the right brake pad 22 can be arranged integrally.

[0029] The working principle of the disc brake disc cooling device of the present application is:

[0030] The brake caliper 1 is fixedly mounted on the vehicle frame, and the brake disc 2 is arranged in the jaws of the brake caliper 1. The brake disc 2 is fixedly connected to the wheel hub of the motor vehicle by passing through the flange hole on the brake disc 2 through a threaded fastener. The water inlet pipe 33 on the sealing hub 3 is connected to the water supply port of the water circulation device, and the water outlet pipe 34 on the sealing hub 3 is connected to the water return port of the water circulation device. During the driving process of the motor vehicle, the brake disc 2 rotates relative to the sealing hub 3. Controlling the brake caliper 1 to brake will cause intense friction between the brake disc 2 and the brake caliper 1, which will increase the temperature of the brake disc 2. The cold water circulates through the cooling water cavity inside the brake disc 2 to take away the heat and cool the brake disc 2. Compared with the traditional cooling method, the cooling device has a better cooling effect and can effectively avoid the occurrence of brake failure caused by excessive temperature due to friction between the brake disc 2 and the brake caliper 1 during the braking process. The cooling device adopts a water cooling method to keep the overall temperature of the brake disc 2 uniform, avoid cracks formed due to excessive local temperature of the brake disc 2, thereby effectively extending the service life of the brake disc 2 and reducing the cost. The brake device has the characteristics of reliable operation, energy saving and environmental protection.

Claims

1. A disc brake disc cooling device, characterized in that: It includes a brake disc, a sealing hub and a sealing ring. The outer circumferential wall of the brake disc is provided with an annular cooling groove. The sealing hub is sleeved on the outer circumferential wall of the brake disc to seal the cooling groove to form a cooling water cavity. The sealing hub is provided with a water inlet pipe and a water outlet pipe. The sealing ring is clamped between the brake disc and the sealing hub on both sides of the cooling groove.

2. The disc brake disc cooling device according to claim 1, characterized in that: A plurality of partitions are arranged in the cooling groove of the brake disc, and the plurality of partitions are arranged at equal angles along the radial direction of the brake disc.

3. The disc brake disc cooling device according to claim 2, characterized in that: The brake disc is provided with two sealing grooves on both sides of the cooling groove, each of which is provided with a sealing ring. A lubrication groove is provided between the two sealing grooves on the same side of the cooling groove, and an oil filling port connected to the lubrication groove is provided on the sealing hub.

4. The disc brake disc cooling device according to claim 3, characterized in that: It also includes a brake caliper, the sealing hub is fixedly connected to the brake caliper, and the brake disc is arranged in the jaws of the brake caliper.

5. The disc brake disc cooling device according to claim 4, characterized in that: A mounting hole is arranged at the center of the brake disc, and a connecting flange is arranged around the mounting hole.

6. The disc brake disc cooling device according to claim 5, characterized in that: It also includes a vehicle frame and a wheel axle. The brake caliper and the wheel axle are respectively mounted on the vehicle frame, and the wheel axle passes through the mounting hole.

7. The disc brake disc cooling device according to claim 1, characterized in that: It also includes a water circulation device, which includes a water tank and a water pump. The water outlet of the water tank is connected to the water inlet of the water pump, the water outlet of the water pump is connected to the water inlet pipe on the sealing hub, and the water outlet pipe on the sealing hub is connected to the water inlet of the water tank.

8. The disc brake disc cooling device according to claim 1, characterized in that: The brake disc comprises a left brake pad and a right brake pad, both of which are disc-shaped, and are arranged opposite to each other and fixedly connected, and the cavity between the left brake pad and the right brake pad forms the cooling groove.

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