Commercial vehicle brake cooling device and working method thereof

Abstract

The present invention discloses a commercial vehicle brake cooling device and a working method thereof, and relates to the field of automobile brake technology. It aims to solve the problem that the temperature between the brake pad and the brake disc is too high, which affects the braking effect between the two. A commercial vehicle brake cooling device includes a brake disc, the brake disc is provided with two annular grooves, the left and right sides of the brake disc are respectively provided with liquid storage cavities, the liquid storage cavities are provided with coolant, and the brake disc is provided with a water cooling circulation mechanism. The annular grooves and arc-shaped grooves of the present invention improve the cooling effect of the brake disc by air circulation, and the water cooling circulation mechanism circulates the coolant to cool the brake disc, ensuring that the friction generated between the two is stable, thereby achieving a stable braking effect. By tilting the baffle and the tilting grooves, the cooling effect of the air on the brake pad and the brake disc of the brake caliper bracket is improved. By adjusting the circulation speed of the coolant, the brake disc is cooled in sections, thereby achieving efficient cooling of the brake disc.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile brakes, and in particular to a commercial vehicle brake cooling device and a working method thereof. Background Art

[0002] When a vehicle is traveling on a rough road or downhill section, the user needs to frequently step on the brake pedal to control the vehicle's speed. During this process, the brake pads and brake discs are in contact and friction for a long time, causing the temperature of both to rise sharply, and the friction between the two to decay, eventually leading to brake failure. At the same time, a long-term high temperature of the brake disc will reduce its service life. If water is sprayed directly on the surface of the brake disc to cool it down, it will cause the brake disc to deform. If the surface of the brake disc is stained with water, it is easy to cause slippage between the brake disc and the brake pads, affecting the braking effect between the brake disc and the brake pads.

[0003] Therefore, it is necessary to design a commercial vehicle brake cooling device to meet the needs of actual use in view of the shortcomings of the existing technology. Summary of the Invention

[0004] In order to make up for the shortcomings of the existing technology and solve the problem that the brake pads and brake discs are in contact and friction for a long time, which causes the temperature of both to rise sharply, causes the friction between the two to decay, and affects the braking effect between the two, a commercial vehicle brake cooling device and a working method of the commercial vehicle brake cooling device are provided.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a commercial vehicle brake cooling device includes a brake disc, which is symmetrically provided with annular grooves for dissipating heat on its left and right sides respectively, and support blocks are evenly arranged circumferentially at the annular grooves of the brake disc, and a first annular chamber and a second annular chamber are provided in the middle of the brake disc, and liquid storage cavities are symmetrically provided on both sides of the brake disc, and cooling liquid is provided in the liquid storage cavity. A second liquid guide pipe and a third liquid guide pipe are evenly fixed circumferentially in the annular groove of the brake disc, and two ends of the second liquid guide pipe are respectively connected to the first annular chamber and the liquid storage cavity for diverting cooling liquid to absorb heat from the left and right sides of the brake disc, and two ends of the third liquid guide pipe are respectively connected to the liquid storage cavity and the second annular cavity, and the cooling liquid is divided into two paths and flows into the symmetrical liquid storage cavities to quickly cool the brake disc at high temperature, and a water cooling circulation mechanism for circulating cooling liquid is provided on the side of the brake disc away from the mounting wheel hub.

[0006] Furthermore, the support blocks of the brake disc are arranged in a diamond shape to reduce the flow resistance of the air.

[0007] Furthermore, arc-shaped grooves are symmetrically arranged on the inner surface of the brake disc in the circumferential direction to increase the contact area between the air and the brake disc.

[0008] Furthermore, the water cooling circulation mechanism includes a fixed sleeve, which is installed on the side of the brake disc away from the mounting hub, and the fixed sleeve is evenly provided with a first through hole and a second through hole in the circumference, and the first through hole and the second through hole are staggered with each other. A switch assembly and a limit assembly are provided on the side of the fixed sleeve away from the brake disc, the switch assembly is used to monitor the temperature of the brake disc, and the limit assembly is used to control the circulation time of the coolant, and a first liquid guide tube is evenly embedded in the circumference of the side of the brake disc away from the mounting hub, one end of the first liquid guide tube is connected to the adjacent first through hole, and the other end of the first liquid guide tube is connected to the first annular chamber, a circumferentially symmetrical third through hole and a third arc-shaped chamber are provided in the middle of the brake disc, and the two ends of the third through hole are respectively connected to the second annular chamber and the third arc-shaped chamber, and a fourth liquid guide tube is equidistantly embedded in the circumference of the side of the brake disc away from the mounting hub, and the fourth liquid guide tube is connected to the adjacent second through hole.

[0009] Furthermore, inclined rings are alternately provided on the left and right side walls of the liquid storage cavity to increase the contact area between the coolant and the brake disc.

[0010] Furthermore, the switch assembly includes a sliding sleeve, which is slidably connected to the fixed sleeve, the side wall of the sliding sleeve is fixedly connected to the support rod, the side wall of the brake caliper bracket is fixedly connected to the fixed column, the support rod is slidably connected to the fixed column, the sliding sleeve is provided with a first annular groove and a second annular groove, the side wall of the sliding sleeve is provided with a pipe connected to the second annular groove, the first annular groove and the second annular groove respectively cooperate with the first through hole and the second through hole for coolant circulation, a cylindrical cavity is evenly arranged on the side of the fixed sleeve away from the brake disc, gas is provided in the cylindrical cavity, the cylindrical cavity is close to the second through hole, and is used to detect the temperature of the coolant in the brake disc, a first sliding rod is slidably arranged in the cylindrical cavity, a support ring is fixed between the first sliding rods, a small water pump is fixedly connected to the side wall of the sliding sleeve through a connecting block, the drain outlet of the small water pump is connected to the first annular groove, the pipeline of the sliding sleeve is connected to the water inlet of the small water pump through a delivery pipe, the delivery pipe cools the coolant in it through the vehicle cooling system, and the small water pump is electrically connected to the control module of the vehicle.

[0011] Furthermore, the limiting assembly includes a second sliding rod, which is slidably arranged on the support rod, a rectangular hole is provided at the upper end of the second sliding rod, and the fixed column is provided with two blind holes. The second sliding rod cooperates with the two blind holes of the fixed column to limit the movement of the second sliding rod, and a tension spring is installed between the second sliding rod and the support rod. A sliding frame is slidably arranged in the middle of the fixed column, one end of the sliding frame is rotatably connected to the support ring, and the other end of the sliding frame is fixed with a fixed block, the fixed block is located in the rectangular hole of the second sliding rod, and a V-shaped groove is provided on one side of the fixed block.

[0012] Furthermore, one side of the rectangular hole on the second sliding rod is configured as a V-shaped surface for cooperating with the V-shaped groove of the fixing block, and a roller is provided on the surface thereof for reducing friction.

[0013] Furthermore, inclined baffles are symmetrically arranged on the sides of the fixing sleeve in the circumferential direction for stirring the air to flow toward the surface of the brake disc, and inclined grooves are symmetrically arranged on both sides of the brake disc in the circumferential direction.

[0014] Furthermore, a temperature sensor is provided on the right side of the small water pump, and the temperature sensor is electrically connected to the small water pump to adjust the working efficiency of the small water pump in response to the instantaneous increase in the temperature of the brake disc.

[0015] The present invention also provides a method for operating a commercial vehicle brake cooling device, which uses the commercial vehicle brake cooling device as described above and includes the following steps:

[0016] (1) When the user is driving the vehicle, the brake disc rotates normally. When the user steps on the brake pedal, the brake pads of the brake caliper bracket clamp the brake disc, causing friction between the two and causing the temperature of both to rise. When the user releases the brake pedal and the vehicle drives normally, the brake disc continues to rotate. During this process, air passes through the annular groove to cool the brake disc. The diamond-shaped support block of the brake disc reduces the resistance of air flow, and the arc-shaped groove increases the contact area between the air and the brake disc, accelerating the heat dissipation of the brake disc and ensuring smooth operation between the brake disc and the brake pads on the brake caliper bracket.

[0017] (2) When the vehicle is traveling downhill for a long distance or on a rough road, the user steps on the brake pedal for a long time, causing friction between the brake pads of the brake caliper bracket and the brake disc to heat up, so that both are in a continuously high temperature state. The temperature of the brake disc is transferred to the second through hole through the coolant, and the temperature in the second through hole is transferred to the cylindrical cavity through the fixed sleeve. As the temperature changes, the gas in the cylindrical cavity expands and squeezes the first sliding rod to move. The first sliding rod drives the fixed block to move through the support ring and the sliding frame. Under the action of the V-shaped groove on the fixed block, the fixed block moves and squeezes the second sliding rod to move. The movement of the second sliding rod stretches the tension spring;

[0018] (3) When the temperature of the brake disc is higher than a certain value, the second sliding rod moves out of the blind hole of the fixed column, and then, under the action of the tension spring, the second sliding rod moves to the bottom of the V-shaped groove of the fixed block, so that the second sliding rod is located in another blind hole of the fixed column. At this time, the second sliding rod drives the sliding sleeve moving rod through the support rod, so that the first annular groove is connected to the first through hole, and the second annular groove is connected to the second through hole; at the same time, the control module of the vehicle starts the small water pump, and the small water pump works to inject coolant into the first annular groove, and then the coolant flows into the first annular chamber through the first through hole and the first liquid guide tube, and then the coolant is passed through the first through hole. The coolant flows into the two liquid storage chambers through the two second liquid guide pipes, absorbs the high temperature of the brake disc, and the coolant after absorbing the heat enters the third arc-shaped chamber through the third liquid guide pipe, the second annular chamber and the third through hole. Then the coolant is discharged through the fourth liquid guide pipe and the second through hole. The discharged coolant enters the vehicle's cooling system through the pipeline to cool the coolant; finally, the cooled coolant enters the small water pump again through the pipeline and performs the above-mentioned cycle to continuously cool the brake disc. Combined with the above-mentioned air cooling, the temperature between the brake disc and the brake pad on the brake caliper bracket is reduced to ensure the stability of the friction generated between the two.

[0019] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention improves the cooling effect of the brake disc by allowing air to pass through two annular grooves and then combining them with arc-shaped grooves; the water-cooling circulation mechanism monitors the temperature of the brake disc through the gas in the cylindrical cavity, circulates coolant to cool the brake disc at high temperature, reduces the temperature between the brake disc and the brake pad on the brake caliper bracket, ensures the stability of the friction generated between the two, and achieves a stable braking effect; the limiting component cooperates with the blind hole of the fixed column through the second sliding rod to effectively control the circulation time of the coolant and reduce the loss of coolant; the inclined baffle rotates to allow air to flow on the surface of the brake disc and pass through the inclined groove, thereby improving the cooling effect of the air on the brake pad and brake disc of the brake caliper bracket and ensuring the stability of the braking effect between the two; the temperature sensor on the small water pump adjusts its power change, controls the circulation speed of the coolant, and cools the brake disc in sections to achieve efficient cooling of the brake disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is a cross-sectional view of the water cooling circulation mechanism of the present invention.

[0022] Figure 3 2 is a cross-sectional view of the brake disc of the present invention.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the water cooling circulation mechanism of the present invention.

[0024] Figure 5 It is a partial cross-sectional view of the water cooling circulation mechanism of the present invention.

[0025] Figure 6 It is an enlarged view of point A of the present invention.

[0026] Figure 7 It is a partial cross-sectional view of the brake disc of the present invention.

[0027] Figure 8 It is an enlarged view of point B of the present invention.

[0028] Figure 9 It is a partial three-dimensional structural schematic diagram of the present invention.

[0029] In the above drawings: 1. brake disc, 2. brake caliper bracket, 3. annular groove, 4. arc-shaped groove, 5. fixing sleeve, 601. support rod, 602. fixing column, 6. sliding sleeve, 7. first annular groove, 8. second annular groove, 9. first through hole, 10. second through hole, 11. cylindrical cavity, 1101. first sliding rod, 12. support ring, 13. small water pump, 14. second sliding rod, 1401. tension spring, 1402. sliding frame, 1403. fixing block, 15. first liquid guide tube, 16. first annular chamber, 17. second liquid guide tube, 18. liquid storage chamber, 19. third liquid guide tube, 20. second annular chamber, 21. third through hole, 22. third arc-shaped chamber, 23. fourth liquid guide tube, 24. inclined baffle, 25. inclined groove. DETAILED DESCRIPTION

[0030] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0031] Example 1

[0032] A commercial vehicle brake cooling device, referring to Figures 1-9As shown, it includes a brake disc 1, which is provided with two annular grooves 3 for dissipating heat on its left and right sides respectively, and support blocks are evenly arranged circumferentially at the annular grooves 3 of the brake disc 1. The support blocks of the brake disc 1 are arranged in a diamond shape to reduce the flow resistance of the air. When the brake pads of the brake caliper bracket 2 squeeze the brake disc 1 to achieve the braking of the brake disc 1, arc-shaped grooves 4 are symmetrically arranged on the inner surface of the brake disc 1 in the circumference to increase the contact area between the air and the brake disc 1 and improve the cooling effect of the flowing air on the brake disc 1. A first annular chamber 16 and a second annular chamber 20 are provided in the middle of the brake disc 1, and the second annular chamber 20 is located on the outside of the first annular chamber 16. Liquid storage cavities 18 are symmetrically provided on the left and right sides of the brake disc 1, and coolant is provided in the liquid storage cavity 18. The annular groove 3 of the brake disc 1 is evenly fixed with a second annular chamber 20 in the circumference. The second liquid guide pipe 17 and the third liquid guide pipe 19, air flows through the second liquid guide pipe 17 and the third liquid guide pipe 19 to cool the coolant therein. The two ends of the second liquid guide pipe 17 are respectively connected to the first annular chamber 16 and the liquid storage cavity 18. The coolant is divided into two paths through the symmetrical second liquid guide pipe 17 and flows into the two liquid storage cavities 18 of the brake disc 1. The coolant absorbs heat from the left and right sides of the brake disc 1, so that the brake disc 1 is quickly cooled. The two ends of the third liquid guide pipe 19 are respectively connected to the liquid storage cavity 18 and the second annular chamber 20. The coolant is divided into two paths and flows into the symmetrical liquid storage cavity 18, which quickly cools the brake disc 1 at high temperature, stabilizes the contact friction between the brake disc 1 and the brake pad of the brake caliper bracket 2, and ensures stable braking effect between the two. A water cooling circulation mechanism for circulating coolant is provided on the left side of the brake disc 1.

[0033] Reference Figure 2 and Figure 4-Figure 8As shown, the water cooling circulation mechanism includes a fixed sleeve 5, which is bolted to the left side of the brake disc 1. The fixed sleeve 5 is evenly provided with a first through hole 9 and a second through hole 10 in the circumferential direction. The first through hole 9 and the second through hole 10 are arranged alternately. The coolant flows in from the first through hole 9 and flows in from the second through hole 10. The left part of the fixed sleeve 5 is provided with a switch assembly and a limit assembly. The switch assembly is used to monitor the temperature of the brake disc 1. If the temperature of the brake disc 1 is too high, the temperature of the brake disc 1 is transmitted to the fixed sleeve 5 and triggers the switch assembly to circulate the coolant. The limit assembly is used to control the circulation time of the coolant. The left part of the brake disc 1 is evenly embedded with a first liquid guide tube 15 in the circumferential direction. The two ends of the first liquid guide tube 15 are respectively connected to the adjacent first through hole 9 and the first annular chamber 16. The middle part of the brake disc 1 is provided with a circumferentially symmetrical third through hole 21 and a third arc-shaped chamber 22. The third arc The arc-shaped chamber 22 is located on the left side of the first annular chamber 16, and the two ends of the third through hole 21 are respectively connected to the second annular chamber 20 and the third arc-shaped chamber 22. A fourth liquid guide tube 23 is fixedly connected to the left part of the brake disc 1 in a circumferentially symmetrical manner. The two ends of the fourth liquid guide tube 23 are respectively connected to the third arc-shaped chamber 22 and the adjacent second through hole 10. The coolant flows into the liquid storage cavity 18 through the first through hole 9, the first liquid guide tube 15, the first annular chamber 16 and the second liquid guide tube 17. Since the left and right side walls of the liquid storage cavity 18 are alternately provided with inclined rings, the coolant flowing therein absorbs the heat energy of the brake disc 1. The coolant after absorbing heat is discharged through the third liquid guide tube 19, the second annular chamber 20, the third through hole 21, the third arc-shaped chamber 22, the fourth liquid guide tube 23 and the second through hole 10. The coolant continuously repeats the above cycle process to continuously cool the brake disc 1.

[0034] Reference Figure 4 and Figure 5As shown, the switch assembly includes a sliding sleeve 6, which is slidably arranged on the fixed sleeve 5, and the side wall of the sliding sleeve 6 is bolted to a support rod 601, and the left side of the brake caliper bracket 2 is bolted to a fixed column 602. The upper part of the support rod 601 is slidably connected to the fixed column 602 to limit the rotation of the sliding sleeve 6. The inner wall of the sliding sleeve 6 is provided with a first annular groove 7 and a second annular groove 8. The side wall of the sliding sleeve 6 is provided with a pipe connected to the second annular groove 8. The coolant flows through the second through hole 10 and flows into the second annular groove 8, so that the coolant after absorbing heat flows out of the brake disc 1. The first annular groove 7 and the second annular groove 8 respectively cooperate with the first through hole 9 and the second through hole 10 for cooling liquid circulation. The left part of the fixed sleeve 5 is evenly circumferentially provided with cylindrical cavities 11. The cylindrical cavity 1 1 is provided with a gas with a large volume expansion coefficient, the cylindrical cavity 11 is adjacent to the second through hole 10, and a first sliding rod 1101 is slidably connected in the cylindrical cavity 11. The left end of the first sliding rod 1101 is bolted to the support ring 12. The side wall of the sliding sleeve 6 is bolted to a small water pump 13 through a connecting block. The drain port of the small water pump 13 is connected to the first annular groove 7. The pipeline of the sliding sleeve 6 is connected to the water inlet of the small water pump 13 through a delivery pipe. The delivery pipe cools the coolant in the vehicle through the vehicle cooling system. The small water pump 13 is electrically connected to the control module of the vehicle. When the temperature of the brake disc 1 is too high, the heat is transferred to the fixed sleeve 5 through the coolant. The temperature of the fixed sleeve 5 increases, causing the gas in the cylindrical cavity 11 to expand and squeeze the cylindrical cavity 11 and the support ring 12 to move.

[0035] Reference Figure 5As shown, the limiting assembly includes a second sliding rod 14, which is slidably connected to the support rod 601, and a rectangular hole is provided at the upper end of the second sliding rod 14, and the fixing column 602 is provided with two blind holes. The second sliding rod 14 cooperates with the two blind holes of the fixing column 602 to limit the movement of the second sliding rod 14, and a tension spring 1401 is fixed between the second sliding rod 14 and the support rod 601. The middle part of the fixing column 602 is slidably connected to a sliding frame 1402, and the lower end of the sliding frame 1402 is rotatably matched with the support ring 12. The upper end of the sliding frame 1402 is bolted to a fixed block 1403, and the fixed block 1403 is located in the rectangular hole of the second sliding rod 14, and the support ring 12 moves through the sliding frame 1402 to drive the fixed block 1403 to move , a V-shaped groove is provided at the upper end of the fixed block 1403, and the upper end of the rectangular hole on the second sliding rod 14 is set as a V-shaped surface for cooperating with the V-shaped groove of the fixed block 1403, and a roller is provided on its surface for reducing friction. The fixed block 1403 moves and squeezes the second sliding rod 14, so that the second sliding rod 14 is disengaged from the blind hole of the fixed column 602. At the same time, the two sliding rods 14 move the tension spring 1401, and the second sliding rod 14 after disengaging from the contact limit is acted upon by the V-shaped groove of the fixed block 1403 and the second sliding rod 14. The second sliding rod 14 enters another blind hole of the fixed column 602, and connects the first annular groove 7 with the first through hole 9, and connects the second annular groove 8 with the second through hole 10, so that the coolant circulates to cool the brake disc 1.

[0036] Reference Figure 9 As shown, inclined baffles 24 are symmetrically arranged on the side of the fixing sleeve 5. The fixing sleeve 5 drives the inclined baffles 24 to rotate and stir the air to flow toward the surface of the brake disc 1. Inclined grooves 25 are symmetrically arranged on the left and right sides of the brake disc 1. The air flows through the inclined grooves 25 and passes between the brake disc 1 and the brake pads of the brake caliper bracket 2 to cool both of them.

[0037] When the user is driving the vehicle, the brake disc 1 rotates normally. When the user steps on the brake pedal, the brake pads of the brake caliper bracket 2 clamp the brake disc 1, friction occurs between the two, and the temperature of both increases. When the user releases the brake pedal and the vehicle drives normally, the brake disc 1 continues to rotate. During this process, air passes through the annular groove 3 to cool the brake disc 1. The diamond-shaped support block of the brake disc 1 reduces the resistance to air flow. At the same time, the arc-shaped groove 4 increases the contact area between the air and the brake disc 1, accelerates the heat dissipation of the brake disc 1, and ensures smooth operation between the brake disc 1 and the brake pads on the brake caliper bracket 2.

[0038] When the vehicle is driving downhill for a long distance or on a rugged road, the user steps on the brake pedal for a long time, causing the friction between the brake pads of the brake caliper bracket 2 and the brake disc 1 to heat up, so that both are in a continuously high temperature state. The temperature of the brake disc 1 is transferred to the second through hole 10 through the coolant, and the temperature in the second through hole 10 is transferred to the cylindrical cavity 11 through the fixing sleeve 5. As the temperature changes, the gas in the cylindrical cavity 11 expands and squeezes the first sliding rod 1101 to move. The first sliding rod 1101 drives the fixed block 1403 to move through the support ring 12 and the sliding frame 1402. Under the action of the V-shaped groove on it, the fixed block 1403 moves and squeezes the second sliding rod 14 to move, and the second sliding rod 14 moves to stretch the tension spring 1401.

[0039] When the temperature of the brake disc 1 is higher than a certain value, the second sliding rod 14 moves out of the blind hole of the fixed column 602, and then under the action of the tension spring 1401, the second sliding rod 14 moves to the bottom of the V-shaped groove of the fixed block 1403, so that the second sliding rod 14 is located in the other blind hole of the fixed column 602. At this time, the second sliding rod 14 drives the sliding sleeve 6 to move the rod through the support rod 601, so that the first annular groove 7 is connected with the first through hole 9, and the second annular groove 8 is connected with the second through hole 10.

[0040] At the same time, the vehicle's control module starts the small water pump 13, and the small water pump 13 works to inject coolant into the first annular groove 7. The coolant then flows into the first annular chamber 16 through the first through hole 9 and the first liquid guide tube 15, and then the coolant flows into the two liquid storage cavities 18 through the two second liquid guide tubes 17, absorbing the high temperature of the brake disc 1. The coolant after absorbing heat enters the third arc-shaped chamber 22 through the third liquid guide tube 19, the second annular chamber 20 and the third through hole 21, and then the coolant is discharged through the fourth liquid guide tube 23 and the second through hole 10. The discharged coolant enters the vehicle's cooling system through the pipeline to cool the coolant. Finally, the cooled coolant enters the small water pump 13 again through the pipeline and performs the above-mentioned cycle to continuously cool the brake disc 1. Combined with the above-mentioned air cooling, the temperature between the brake disc 1 and the brake pad on the brake caliper bracket 2 is reduced to ensure that the friction generated between the two is stable, that is, the braking effect is stable.

[0041] As the coolant circulates, the volume of the gas in the cylindrical cavity 11 shrinks to its initial state, causing the above-mentioned parts to work in reverse to restore to their initial state, ultimately interlacing the first annular groove 7 with the first through hole 9, and interlacing the second annular groove 8 with the second through hole 10, and closing the small water pump 13. Whenever the temperature of the brake disc 1 is too high, the above-mentioned cycle will be performed to cool the brake disc 1 again.

[0042] At the same time, the rotation of the fixed sleeve 5 drives the inclined baffle 24 to rotate together. The rotation of the inclined baffle 24 stirs the air to flow toward the surface of the brake disc 1. The gas flowing to the surface of the brake disc 1 is diffused through the inclined groove 25. During this process, part of the air passes between the brake pad of the brake caliper bracket 2 and the brake disc 1, cooling the two parts that have eliminated friction, thereby ensuring a stable braking effect between the two parts.

[0043] Example 2

[0044] Based on Example 1, Figures 1-9 As shown, a temperature sensor is provided on the right side of the small water pump 13, and the temperature sensor is electrically connected to the small water pump 13. In response to the instantaneous increase in the temperature of the brake disc 1, the working efficiency of the small water pump 13 is adjusted to make the coolant flow quickly to cool the brake disc 1. When the temperature of the brake disc 1 drops to a certain value, the coolant circulation slows down, extending the time for the coolant to pass through the cooling system, so that the coolant temperature drops. After the temperature drops, the coolant circulates to absorb heat and cool the brake disc 1 again, achieving efficient cooling of the brake disc 1.

[0045] During the driving process of the vehicle, the temperature sensor of the small water pump 13 monitors the temperature of the brake disc 1. When the temperature of the brake disc 1 rises rapidly, the temperature sensor sends a signal to the vehicle's control module to start the small water pump 13 and increase its power. The small water pump 13 pumps the coolant to flow rapidly in the brake disc 1. The flowing coolant continuously absorbs the heat energy of the brake disc 1, achieving rapid cooling of the brake disc 1, and causing the temperature of the brake disc 1 to drop rapidly.

[0046] When the temperature sensor detects that the temperature of the brake disc 1 has dropped, the temperature sensor reduces the power of the small water pump 13 through the vehicle's control module. The small water pump 13 causes the coolant to circulate at a low speed in the brake disc 1. The coolant circulates at a low speed through the vehicle's cooling system, extending the contact time between the coolant and the cooling system and accelerating the cooling of the coolant. The cooled coolant circulates into the brake disc 1 again, continues to absorb heat energy from the brake disc 1, further reduces the temperature of the brake disc 1, and ensures normal operation between the brake disc 1 and the brake pads of the brake caliper bracket 2.

[0047] The above description of the specific embodiments of the present invention with reference to the accompanying drawings does not limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made by those skilled in the art without departing from the scope and essence of the present invention should be within the scope of the present invention.

Claims

1. A commercial vehicle brake cooling device, characterized in that: The invention comprises a brake disc (1), wherein the brake disc (1) is symmetrically provided with annular grooves (3) for respectively dissipating heat on the left and right sides thereof, wherein support blocks are uniformly provided at the annular grooves (3) of the brake disc (1), wherein a first annular chamber (16) and a second annular chamber (20) are provided at the middle of the brake disc (1), wherein liquid storage cavities (18) are symmetrically provided at both sides of the brake disc (1), wherein cooling liquid is provided in the liquid storage cavities (18), wherein a second liquid guide pipe (17) and a third liquid guide pipe (20) are uniformly fixed at the annular grooves (3) of the brake disc (1) The second liquid guide tube (19) has two ends connected to the first annular chamber (16) and the liquid storage cavity (18) respectively, and is used to divert the cooling liquid to the left and right sides of the brake disc (1) for absorbing heat. The third liquid guide tube (19) has two ends connected to the liquid storage cavity (18) and the second annular chamber (20) respectively, and the cooling liquid is divided into two paths and flows into the symmetrical liquid storage cavity (18) to quickly cool the brake disc (1) at a high temperature. A water cooling circulation mechanism for circulating the cooling liquid is provided on the side of the brake disc (1) away from the mounting hub; The support block of the brake disc (1) is arranged in a diamond shape to reduce the flow resistance of the air; the inner surface of the brake disc (1) is provided with arc-shaped grooves (4) symmetrically in the circumferential direction to increase the contact area between the air and the brake disc (1); The water cooling circulation mechanism includes a fixed sleeve (5), the fixed sleeve (5) is installed on the side of the brake disc (1) away from the mounting hub, the fixed sleeve (5) is evenly provided with a first through hole (9) and a second through hole (10) in the circumferential direction, the first through hole (9) and the second through hole (10) are arranged in an interlaced manner, the fixed sleeve (5) is provided with a switch component and a limit component on the side away from the brake disc (1), the switch component is used to monitor the temperature of the brake disc (1), the limit component is used to control the circulation time of the coolant, the brake disc (1) is evenly embedded with a first liquid guide tube (15) on the side away from the mounting hub, the first liquid guide tube One end of the first through hole (15) is in communication with the adjacent first through hole (9), the other end of the first liquid guide tube (15) is in communication with the first annular chamber (16), a circumferentially symmetrical third through hole (21) and a third arc-shaped chamber (22) are provided in the middle of the brake disc (1), the two ends of the third through hole (21) are in communication with the second annular chamber (20) and the third arc-shaped chamber (22), respectively, a fourth liquid guide tube (23) is equidistantly embedded in the side of the brake disc (1) away from the mounting hub, the two ends of the fourth liquid guide tube (23) are in communication with the third arc-shaped chamber (22) and the adjacent second through hole (10), respectively; The switch assembly includes a sliding sleeve (6), the sliding sleeve (6) is slidably connected to the fixed sleeve (5), the side wall of the sliding sleeve (6) is fixedly connected to a support rod (601), the side wall of the brake caliper bracket (2) is fixedly connected to a fixed column (602), the support rod (601) is slidably connected to the fixed column (602), the interior of the sliding sleeve (6) is provided with a first annular groove (7) and a second annular groove (8), the side wall of the sliding sleeve (6) is provided with a pipe connected to the second annular groove (8), the first annular groove (7) and the second annular groove (8) are respectively matched with the first through hole (9) and the second through hole (10) for cooling liquid circulation, and a cylindrical cavity ( 11), gas is provided in the cylindrical cavity (11), the cylindrical cavity (11) is close to the second through hole (10), and is used to detect the temperature of the coolant in the brake disc (1), a first sliding rod (1101) is slidably provided in the cylindrical cavity (11), a support ring (12) is fixedly connected between the first sliding rods (1101), a small water pump (13) is fixedly connected to the side wall of the sliding sleeve (6) through a connecting block, the drain port of the small water pump (13) is connected to the first annular groove (7), the pipeline of the sliding sleeve (6) is connected to the water inlet of the small water pump (13) through a delivery pipe, the delivery pipe passes through the vehicle cooling system to cool the coolant in it, and the small water pump (13) is electrically connected to the control module of the vehicle.

2. A commercial vehicle brake cooling device according to claim 1, characterized in that: Inclined circular rings are alternately provided on the left and right side walls of the liquid storage cavity (18) to increase the contact area between the coolant and the brake disc (1).

3. The commercial vehicle brake cooling device according to claim 1, characterized in that: The limiting assembly includes a second sliding rod (14), which is slidably arranged on the support rod (601), a rectangular hole is arranged at the upper end of the second sliding rod (14), and the fixed column (602) is provided with two blind holes. The second sliding rod (14) cooperates with the two blind holes of the fixed column (602) to limit the movement of the second sliding rod (14), a tension spring (1401) is installed between the second sliding rod (14) and the support rod (601), and a sliding frame (1402) is slidably arranged in the middle of the fixed column (602), one end of the sliding frame (1402) is rotatably connected to the support ring (12), and the other end of the sliding frame (1402) is fixed with a fixed block (1403), the fixed block (1403) is located in the rectangular hole of the second sliding rod (14), and a V-shaped groove is arranged on one side of the fixed block (1403).

4. A commercial vehicle brake cooling device according to claim 3, characterized in that: One side of the rectangular hole on the second sliding rod (14) is configured as a V-shaped surface for cooperating with the V-shaped groove of the fixed block (1403), and a roller is provided on the surface thereof for reducing friction.

5. The commercial vehicle brake cooling device according to claim 1, characterized in that: Inclined baffles (24) are symmetrically arranged on the sides of the fixing sleeve (5) in the circumferential direction, and are used to stir the air to flow toward the surface of the brake disc (1). Inclined grooves (25) are symmetrically arranged on both sides of the brake disc (1).

6. The commercial vehicle brake cooling device according to claim 1, characterized in that: The invention also includes a temperature sensor provided on the right side of the small water pump (13), the temperature sensor being electrically connected to the small water pump (13), and adjusting the working efficiency of the small water pump (13) in response to the instantaneous increase in the temperature of the brake disc (1).

7. A method for operating a commercial vehicle brake cooling device, using the commercial vehicle brake cooling device according to any one of claims 1 to 6, characterized in that The following steps are involved: (1) When the user is driving the vehicle, the brake disc rotates normally. When the user steps on the brake pedal, the brake pads of the brake caliper bracket clamp the brake disc, causing friction between the two and causing the temperature of both to rise. When the user releases the brake pedal and the vehicle drives normally, the brake disc continues to rotate. During this process, air passes through the annular groove to cool the brake disc. The diamond-shaped support block of the brake disc reduces the resistance of air flow, and the arc-shaped groove increases the contact area between the air and the brake disc, accelerating the heat dissipation of the brake disc and ensuring smooth operation between the brake disc and the brake pads on the brake caliper bracket. (2) When the vehicle is traveling downhill for a long distance or on a rough road, the user steps on the brake pedal for a long time, causing friction between the brake pads of the brake caliper bracket and the brake disc to heat up, so that both are in a continuously high temperature state. The temperature of the brake disc is transferred to the second through hole through the coolant, and the temperature in the second through hole is transferred to the cylindrical cavity through the fixed sleeve. As the temperature changes, the gas in the cylindrical cavity expands and squeezes the first sliding rod to move. The first sliding rod drives the fixed block to move through the support ring and the sliding frame. Under the action of the V-shaped groove on the fixed block, the fixed block moves and squeezes the second sliding rod to move. The movement of the second sliding rod stretches the tension spring; (3) When the temperature of the brake disc is higher than a certain value, the second sliding rod moves out of the blind hole of the fixed column, and then, under the action of the tension spring, the second sliding rod moves to the bottom of the V-shaped groove of the fixed block, so that the second sliding rod is located in another blind hole of the fixed column. At this time, the second sliding rod drives the sliding sleeve moving rod through the support rod, so that the first annular groove is connected to the first through hole, and the second annular groove is connected to the second through hole; at the same time, the control module of the vehicle starts the small water pump, and the small water pump works to inject coolant into the first annular groove, and then the coolant flows into the first annular chamber through the first through hole and the first liquid guide tube, and then the coolant is passed through the first through hole. The coolant flows into the two liquid storage chambers through the two second liquid guide pipes, absorbs the high temperature of the brake disc, and the coolant after absorbing the heat enters the third arc-shaped chamber through the third liquid guide pipe, the second annular chamber and the third through hole. Then the coolant is discharged through the fourth liquid guide pipe and the second through hole. The discharged coolant enters the vehicle's cooling system through the pipeline to cool the coolant; finally, the cooled coolant enters the small water pump again through the pipeline and performs the above-mentioned cycle to continuously cool the brake disc. Combined with the above-mentioned air cooling, the temperature between the brake disc and the brake pad on the brake caliper bracket is reduced to ensure the stability of the friction generated between the two.

Images