A circulating cooling device for a brake

Abstract

The utility model relates to the technical field of brake, concretely to a circulating cooling cooling device of brake, including hub assembly, hub assembly includes a plurality of hub bolts, and the middle part both ends of a plurality of hub bolt outer surfaces all commonly move and set up and install first brake disc, and the middle part of a plurality of hub bolt outer surfaces commonly move and set up and install second brake disc, and the outer ring surface of first brake disc and second brake disc all are opened to a plurality of arc-shaped air vents, and the middle part of both sides of second brake disc outer surface all is set up in convexo-concave, and the outer ring surface of second brake disc convexo-concave setting part is moved and set up and installs brake friction disc, and the both sides of brake friction disc outer surface all are set up and have the flow guide groove. The utility model can reach the inside and outside synchronous cooling cooling effect of brake, and further strengthen the heat dissipation efficiency of brake disc.

Description

Technical Field

[0001] This utility model relates to the field of brake technology, and more specifically, to a circulating cooling device for brakes. Background Technology

[0002] Wet brakes are braking devices that use hydraulic oil as a medium and achieve deceleration or stopping through the interaction between the brake fluid and friction materials. They are mainly used in automobiles, mining vehicles, and other fields. The working process includes hydraulic drive, friction braking, and heat dissipation circulation. During friction braking, the brake disc generates a lot of heat. In order to cool the brake disc and avoid heat fade caused by high temperature, the brake disc needs to be immersed in oil for friction braking. The oil absorbs the heat generated by friction braking, thus achieving a cooling effect. However, because the brake disc is in a tight squeezed state during friction braking, it is difficult for the oil to enter the friction contact surface between the brake disc and the friction surface. This results in the inability to quickly absorb the high heat of the friction surface, affecting the heat dissipation efficiency of the brake disc.

[0003] Based on this, a circulating cooling device for brakes is proposed. Summary of the Invention

[0004] The main objective of this invention is to provide a circulating cooling device for brakes to overcome the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides a circulating cooling device for a brake, including a hub assembly. The hub assembly includes several hub bolts. A first brake disc is movably fitted onto both ends of the outer surface of the several hub bolts. A second brake disc is movably fitted onto the outer surface of the several hub bolts. Several arc-shaped ventilation openings are provided through the outer circumference of both the first and second brake discs. The outer surfaces of the second brake disc are convex at the center of both sides. A brake friction disc is movably fitted onto the outer circumference of the convex portion of the second brake disc. Guide grooves are provided on both sides of the outer surface of the brake friction disc.

[0006] As a further improvement of this utility model, the wheel hub assembly consists of a bearing, wheel hub bolts, and a wheel hub flange. A plurality of wheel hub bolts are mounted on the outer surface of one end of the bearing for rotatable limiting, and the other ends of the plurality of wheel hub bolts are screwed together and fixedly installed with a wheel hub flange.

[0007] As a further improvement of this utility model, mounting holes are provided on both sides of the outer surface of the first brake disc and the second brake disc, corresponding to the hub bolts. A compression spring is provided on the outer surface of the side close to the mounting holes. The mounting holes and the compression springs are movably sleeved on the outer surface of the hub bolts. The middle part of the outer surface of the first brake disc near the second brake disc is concave, and the middle part of the outer surface of the first brake disc away from the second brake disc is convex.

[0008] As a further improvement of this utility model, a brake inner shell is fitted together on the outer surfaces of the first brake disc and the second brake disc. Brake ports are provided on the upper parts of both sides of the outer surface of the brake inner shell. A guide pipe is installed through the upper surface, lower surface and the middle part of the front end of the brake inner shell.

[0009] As a further improvement of this utility model, a brake outer shell is sleeved on the outside of the brake inner shell. The wheel hub assembly is rotatably inserted into the inner surface of the brake outer shell. Connecting ears are fixedly installed at both ends of one side of the middle of the inner top surface of the brake outer shell. A brake caliper pin is movably inserted into the connecting ears. A brake caliper is fixedly installed at both ends of the brake caliper pin. Brake pads are fixedly installed on both sides of the inner surface of the brake caliper. The brake pads are embedded in the brake port. A brake piston is fixedly installed on one side of the outer surface of the brake caliper. A brake fluid hose is fixedly connected to the inlet end of the brake piston. The other end of the brake fluid hose extends outward through the brake outer shell. A ventilation cavity is provided at the front end of the outer surface of the brake outer shell. A dustproof air pump is connected to the front end of the outer surface of the ventilation cavity. The other end of the guide tube at the front end of the outer surface of the brake inner shell extends through the brake outer shell and communicates with the ventilation cavity.

[0010] As a further improvement of this utility model, a circulation chamber is fixedly installed on the outer surface of the brake housing away from the wheel hub flange. A first oil pump is fixedly connected to the front end of the outer surface of the circulation chamber. A first circulation pipe is fixedly connected to the inlet end of the first oil pump. A cooling pipe is connected to the other end of the first circulation pipe. A filter box is connected to the other end of the cooling pipe. A filter screen is provided in the middle of the inner surface of the filter box. The upper part of the other side of the outer surface of the filter box is connected to the other end of the guide pipe provided on the lower surface of the brake inner housing.

[0011] As a further improvement of this utility model, a second oil pump is fixedly connected to the rear end of the outer surface of the circulation chamber, a second circulation pipe is fixedly connected to the outlet end of the second oil pump, and the other end of the second circulation pipe is connected to the other end of the guide pipe provided on the upper surface of the brake inner shell.

[0012] The beneficial effects of this utility model are: This invention can uniformly input cooling oil into the friction contact surface between the brake disc and the friction disc during the cooling process of the brake, so as to achieve a high-efficiency heat absorption effect on the friction surface under the pressure contact state of the brake disc and the friction disc. At the same time, the air-cooling structure enhances the heat absorption effect of the cooling oil and implements ventilation and heat dissipation inside the brake disc, which is conducive to achieving a simultaneous internal and external cooling effect of the brake, and further enhances the heat dissipation efficiency of the brake disc. Attached Figure Description

[0013] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings: Figure 1 This is a front three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the rear side of this utility model; Figure 3 This is a cross-sectional schematic diagram of the brake housing structure of this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the brake inner shell of this utility model; Figure 5 This is a sectional view of the brake inner shell structure of this utility model. Figure 6 This is a structural disassembly diagram of the wheel hub assembly of this utility model; Figure 7 This is a sectional view of the first brake disc structure of this utility model; Figure 8 This is a sectional view of the circulating cavity structure of this utility model. Figure 9 This is a schematic diagram showing the disassembled structure of the brake friction disc of this utility model.

[0014] In the diagram: 1. Wheel hub assembly; 101. Bearing; 102. Wheel hub bolt; 103. Wheel hub flange; 2. Brake inner housing; 201. Brake port; 202. Guide pipe; 3. First brake disc; 301. Second brake disc; 302. Mounting hole; 303. Compression spring; 304. Vent; 4. Brake friction disc; 401. Guide groove; 5. Brake housing; 501. Connecting lug; 502. Brake caliper pin; 503. Brake caliper; 504. Brake pad; 505. Brake piston; 506. Brake fluid hose; 507. Ventilation chamber; 508. Dustproof air pump; 6. Circulation chamber; 601. First oil pump; 602. First circulation pipe; 603. Cooling pipe; 604. Filter box; 605. Second oil pump; 606. Second circulation pipe. Detailed Implementation

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0016] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0017] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0018] To make the objectives and advantages of this utility model clearer, the utility model will be further described below with reference to the embodiments; it should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0019] Please see Figures 1-9 As shown, a brake circulation cooling device includes a hub assembly 1, which includes a plurality of hub bolts 102. The hub assembly 1 is composed of a bearing 101, hub bolts 102, and hub flange 103. A plurality of hub bolts 102 are mounted on the outer surface of one end of the bearing 101 for rotatable limiting. The other ends of the plurality of hub bolts 102 are screwed and fixedly installed on the hub flange 103. It should be noted that the wheel hub is installed by using the wheel hub bolts 102 and the wheel hub flange 103 together, and the drive bearing 101 drives the wheel hub.

[0020] A first brake disc 3 is movably fitted onto the middle of the outer surfaces of several wheel hub bolts 102 at both ends. A second brake disc 301 is movably fitted onto the middle of the outer surfaces of several wheel hub bolts 102. Several arc-shaped ventilation openings 304 are provided through the outer circumferences of both the first brake disc 3 and the second brake disc 301. Mounting holes 302 are provided on both sides of the outer surfaces of the first brake disc 3 and the second brake disc 301 corresponding to the wheel hub bolts 102. Compression springs 303 are provided on the outer surfaces of the adjacent sides of the mounting holes 302. The mounting hole 302 and the compression spring 303 are both movably sleeved on the outer surface of the hub bolt 102. The middle part of the outer surface of the first brake disc 3 on the side close to the second brake disc 301 is concave, and the middle part of the outer surface of the first brake disc 3 on the side away from the second brake disc 301 is convex. The middle parts of both sides of the outer surface of the second brake disc 301 are convex. The outer ring surface of the convex part of the second brake disc 301 is movably sleeved with a brake friction disc 4. The two sides of the outer surface of the brake friction disc 4 are provided with guide grooves 401. The outer surfaces of the first brake disc 3 and the second brake disc 301 are jointly fitted with a brake inner shell 2. Brake ports 201 are opened through the upper parts of both sides of the outer surface of the brake inner shell 2. A guide pipe 202 is installed through the upper surface, lower surface and the middle of the front end of the brake inner shell 2. A brake housing 5 is fitted onto the outside of the brake inner housing 2. The wheel hub assembly 1 is rotatably inserted into the inner surface of the brake housing 5. Connecting ears 501 are fixedly installed at both ends of one side of the middle of the inner top surface of the brake housing 5. Brake caliper pins 502 are movably inserted into the connecting ears 501. Brake caliper 503 is fixedly installed at both ends of the brake caliper pins 502. Brake pads 504 are fixedly installed on both sides of the inner surface of the brake caliper 503. Brake pads 504 are embedded into the brake port 201. A brake piston 505 is fixedly installed on one side of the outer surface of the brake caliper 503. A brake fluid hose 506 is fixedly connected to the inlet end of the brake piston 505. The other end of the brake fluid hose 506 extends outward through the brake housing 5. It should be noted that during braking, pressurized oil is injected into the brake piston 505 through the brake fluid hose 506, thereby pushing the piston inside the brake piston 505 to move. At this time, the moving piston can push the brake pad 504 into the brake inner housing 2 through the brake port 201 until it contacts the first brake disc 3. At this time, the first brake disc 3, under the state of being squeezed, can move closer to the second brake disc 301. During the approach process, it can first contact the brake friction disc 4. At this time, under the state of continuous injection of pressurized oil, the piston of the brake piston 505 continues to push out, controlling the brake pad 504 to squeeze the first brake disc 3, thereby controlling the first brake disc 3 to squeeze and contact the second brake disc 301 and the brake friction disc 4. The braking effect is achieved by the mutual squeezing and friction between the first brake disc 3, the second brake disc 301 and the brake friction disc 4. The ventilation openings 304 on the outer ring surfaces of the first brake disc 3 and the second brake disc 301 can be used for ventilation and heat dissipation. At the same time, they facilitate the introduction of cooling oil into the interior of the first brake disc 3 and the second brake disc 301. When the first brake disc 3 and the second brake disc 301 rotate with the wheel hub, the cooling oil entering the ventilation openings 304 can quickly circulate inside the first brake disc 3 and the second brake disc 301 under the action of centrifugal force. The cooling oil absorbs the heat inside the first brake disc 3 and the second brake disc 301, and together with air cooling, it achieves a multiple cooling effect on the first brake disc 3 and the second brake disc 301. At the same time, the cooling oil can be introduced into the guide grooves 401 on both sides of the outer surface of the brake friction disc 4 and flow along the guide grooves 401, so as to achieve cooling oil coverage on the friction contact surfaces of the brake friction disc 4, the first brake disc 3, and the second brake disc 301, thereby absorbing the heat generated during the braking friction process and further enhancing the cooling effect of the first brake disc 3 and the second brake disc 301.

[0021] A ventilation cavity 507 is provided at the front end of the outer surface of the brake housing 5. A dustproof air pump 508 is connected to the front end of the outer surface of the ventilation cavity 507. The other end of the guide pipe 202 provided at the front end of the outer surface of the brake inner housing 2 passes through the brake housing 5 and is connected to the ventilation cavity 507. It should be noted that the dustproof air pump 508 can filter and introduce external air into the ventilation chamber 507, and then input it into the brake inner shell 2 through the ventilation chamber 507 and the guide pipe 202. At this time, the air entering the brake inner shell 2 can enter the first brake disc 3 and the second brake disc 301 through the ventilation port 304, so as to achieve air cooling of the first brake disc 3 and the second brake disc 301.

[0022] A circulation chamber 6 is fixedly installed on the outer surface of the brake housing 5 away from the hub flange 103. A first oil pump 601 is fixedly connected to the front end of the outer surface of the circulation chamber 6. A first circulation pipe 602 is fixedly connected to the inlet end of the first oil pump 601. A cooling pipe 603 is connected to the other end of the first circulation pipe 602. A filter box 604 is connected to the other end of the cooling pipe 603. A filter screen is provided in the middle of the inner surface of the filter box 604. The upper part of the other side of the outer surface of the filter box 604 is connected to the other end of the guide pipe 202 provided on the lower surface of the brake inner housing 2. A second oil pump 605 is fixedly connected to the rear end of the outer surface of the circulation chamber 6. A second circulation pipe 606 is fixedly connected to the outlet end of the second oil pump 605. The other end of the second circulation pipe 606 is connected to the other end of the guide pipe 202 provided on the upper surface of the brake inner housing 2. It should be noted that the cooling oil is stored in the circulation chamber 6. The second oil pump 605 can export the cooling oil in the circulation chamber 6 and input it into the brake inner shell 2 through the second circulation pipe 606 and the guide pipe 202. The cooling oil entering the brake inner shell 2 can enter the interior of the first brake disc 3 and the second brake disc 301 through the vent 304, and at the same time enter the guide groove 401 to circulate. It can fully contact the friction surfaces of the first brake disc 3, the second brake disc 301 and the brake friction disc 4 to achieve high heat adsorption on the friction surfaces. The cooling oil that has adsorbed heat will flow into the upper part of the inner surface of the filter box 604 through the guide pipe 202 set on the lower surface of the brake inner shell 2. Since a filter screen is provided in the middle of the inner surface of the filter box 604, the cooling oil entering the upper part of the inner surface of the filter box 604 can be filtered through the filter screen and enter the lower part of the inner surface of the filter box 604. At this time, the first oil pump 601 can draw the cooling oil in the filter box 604. The drawn cooling oil flows back to the circulation chamber 6 through the cooling pipe 603 and the first circulation pipe 602. At the same time, when the cooling oil passes through the cooling pipe 603, it is cooled by heat dissipation through the spiral flow channel of the cooling pipe 603.

[0023] In use, this utility model first injects pressurized oil into the brake piston 505 through the brake fluid hose 506, thereby pushing the piston inside the brake piston 505 to move. At this time, the moving piston can push the brake pad 504 into the brake inner shell 2 through the brake port 201 until it contacts the first brake disc 3. At this time, the first brake disc 3, under the state of being squeezed, can move closer to the second brake disc 301, and control the first brake disc 3 to squeeze, contact and rub with the second brake disc 301 and the brake friction disc 4 to achieve braking and stopping. Because the first brake disc 3, the second brake disc 301, and the brake friction disc 4 generate high heat during friction braking, the second oil pump 605 can export the cooling oil in the circulation chamber 6 and input it into the brake inner shell 2 through the second circulation pipe 606 and the guide pipe 202. The cooling oil entering the brake inner shell 2 can enter the interior of the first brake disc 3 and the second brake disc 301 through the vent 304 and flow into the guide groove 401. As the first brake disc 3, the second brake disc 301, and the brake friction disc 4 rotate with the wheel hub, the flow speed of the cooling oil is accelerated, so that it can fully contact the friction surfaces of the first brake disc 3, the second brake disc 301, and the brake friction disc 4 to absorb heat. The cooling oil that has absorbed heat will flow into the upper part of the inner surface of the filter box 604 through the guide pipe 202 set on the lower surface of the brake inner shell 2. Since a filter screen is provided in the middle of the inner surface of the filter box 604, the cooling oil entering the upper part of the inner surface of the filter box 604 can be filtered through the filter screen and enter the lower part of the inner surface of the filter box 604. At this time, the first oil pump 601 can draw the cooling oil in the filter box 604. The drawn cooling oil flows back to the circulation chamber 6 through the cooling pipe 603 and the first circulation pipe 602. At the same time, when the cooling oil passes through the cooling pipe 603, it is cooled by the spiral flow channel of the cooling pipe 603 to realize the recycling of the cooling oil. Secondly, during oil cooling, the dustproof air pump 508 filters and introduces external air into the ventilation chamber 507, and then through the ventilation chamber 507 and the guide pipe 202 into the brake inner shell 2. At this time, the air entering the brake inner shell 2 can enter the first brake disc 3 and the second brake disc 301 through the ventilation port 304, realizing air cooling of the first brake disc 3 and the second brake disc 301. This, combined with oil cooling, achieves multiple cooling effects. At the same time, the airflow entering the first brake disc 3 and the second brake disc 301 through the ventilation port 304 can accelerate the flow rate of the coolant in the ventilation port 304, thereby achieving rapid replacement of the coolant and ensuring its heat absorption effect.

[0024] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A circulating cooling device for a brake, comprising a hub assembly (1), the hub assembly (1) comprising a plurality of hub bolts (102), a first brake disc (3) being movably mounted on both ends of the middle portion of the outer surface of the plurality of hub bolts (102), and a second brake disc (301) being movably mounted on the middle portion of the outer surface of the plurality of hub bolts (102), characterized in that, The outer ring surfaces of the first brake disc (3) and the second brake disc (301) are provided with a plurality of arc-shaped ventilation openings (304). The middle of both sides of the outer surface of the second brake disc (301) are convex. A brake friction disc (4) is movably fitted on the outer ring surface of the convex part of the second brake disc (301). The outer sides of the outer surface of the brake friction disc (4) are provided with guide grooves (401).

2. The circulating cooling and temperature reduction device for a brake according to claim 1, characterized in that, The hub assembly (1) consists of a bearing (101), hub bolts (102), and hub flange (103). One end of the bearing (101) is fitted with a plurality of hub bolts (102) for rotatable positioning. The other end of the plurality of hub bolts (102) is screwed into and fixedly installed with a hub flange (103).

3. The circulating cooling and temperature reduction device for a brake according to claim 1, characterized in that, The first brake disc (3) and the second brake disc (301) have mounting holes (302) through which the hub bolts (102) pass on both sides of their outer surfaces. The outer surfaces of the mounting holes (302) that are close to each other are provided with compression springs (303). The mounting holes (302) and the compression springs (303) are movably sleeved on the outer surfaces of the hub bolts (102). The middle part of the outer surface of the first brake disc (3) that is close to the second brake disc (301) is concave, and the middle part of the outer surface of the first brake disc (3) that is far away from the second brake disc (301) is convex.

4. The circulating cooling and temperature reduction device for a brake according to claim 1, characterized in that, The outer surfaces of the first brake disc (3) and the second brake disc (301) are fitted with a brake inner shell (2). The upper parts of both sides of the outer surface of the brake inner shell (2) are provided with brake ports (201). The upper surface, lower surface and the middle part of the front end of the brake inner shell (2) are connected by a guide pipe (202).

5. The circulating cooling and temperature reduction device for a brake according to claim 4, characterized in that, A brake housing (5) is fitted onto the outside of the brake inner housing (2). The wheel hub assembly (1) is rotatably inserted into the inner surface of the brake housing (5). Connecting ears (501) are fixedly installed at both ends of one side of the inner top surface of the brake housing (5). A brake caliper pin (502) is movably inserted into the connecting ear (501). A brake caliper (503) is fixedly installed at both ends of the brake caliper pin (502). Brake pads (504) are fixedly installed on both sides of the inner surface of the brake caliper (503). The brake pads (504) are embedded in the brake port (201). A brake piston (505) is fixedly installed on one side of the outer surface of the brake caliper (503). A brake fluid hose (506) is fixedly connected to the inlet end of the brake piston (505). The other end of the brake fluid hose (506) extends outward through the brake housing (5). A ventilation cavity (507) is provided at the front end of the outer surface of the brake housing (5). A dustproof air pump (508) is connected to the front end of the outer surface of the ventilation cavity (507). The other end of the guide pipe (202) provided at the front end of the outer surface of the brake inner housing (2) extends through the brake housing (5) and is connected to the ventilation cavity (507).

6. The circulating cooling and temperature reduction device for a brake according to claim 5, characterized in that, A circulation chamber (6) is fixedly installed on the outer surface of the brake housing (5) away from the hub flange (103). A first oil pump (601) is fixedly connected to the front end of the outer surface of the circulation chamber (6). A first circulation pipe (602) is fixedly connected to the inlet end of the first oil pump (601). A cooling pipe (603) is connected to the other end of the first circulation pipe (602). A filter box (604) is connected to the other end of the cooling pipe (603). A filter screen is provided in the middle of the inner surface of the filter box (604). The upper part of the other side of the outer surface of the filter box (604) is connected to the other end of the guide pipe (202) provided on the lower surface of the brake inner housing (2).

7. The circulating cooling and temperature reduction device for a brake according to claim 6, characterized in that, The second oil pump (605) is fixedly connected to the rear end of the outer surface of the circulation chamber (6). The outlet end of the second oil pump (605) is fixedly connected to the second circulation pipe (606). The other end of the second circulation pipe (606) is connected to the other end of the guide pipe (202) provided on the upper surface of the brake inner shell (2).

Images