Disc brakes and brake systems

Abstract

The present invention provides a disc brake and a brake system, which relates to the field of vehicle machinery, including a mounting support, an active unit mounted on the mounting support, a brake unit and a friction unit connected to the active unit, the active unit is used to drive the brake unit and the friction unit, the brake unit is used to transmit the braking torque, and the friction unit is used to apply the braking torque; and also includes a performance monitoring unit, which is used to monitor the braking performance of the disc brake. The present invention solves the technical problems of insufficient braking torque of floating caliper disc brakes on heavy vehicles, large mass, poor braking torque stability, and failure of disc brakes after a hydraulic system failure.

Description

Technical Field

[0001] The invention belongs to the field of vehicle machinery, and in particular relates to a disc brake and a brake system. Background Art

[0002] Disc brakes are a common automotive braking system that slows down or stops a vehicle by applying braking force to a metal disc on the wheel. This type of brake usually consists of a brake disc, a brake caliper, and a brake pad. When the driver steps on the brake pedal, the brake fluid is pushed into the caliper, causing it to clamp the brake disc, thereby generating braking force. Disc brakes have better heat dissipation and braking efficiency than traditional drum brakes.

[0003] Most of the existing disc brakes adopt a floating caliper design, and their braking performance is better when used on light vehicles, but when used on heavy vehicles, there is a problem of insufficient braking torque. At the same time, the materials used are relatively general, the mass is large, and the caliper design has poor braking torque stability compared to heavy vehicles. At the same time, the existing disc brakes use hydraulic drive for braking, and when the hydraulic system fails, the disc brake will fail. Summary of the invention

[0004] The present invention provides a disc brake and a brake system to solve at least one technical problem raised in the above background technology.

[0005] In order to solve the above technical problems, the present invention discloses a disc brake, comprising: a mounting support, an active unit is mounted on the mounting support, a brake unit and a friction unit are connected to the active unit, the active unit is used to drive the brake unit and the friction unit, the brake unit is used to transmit the braking torque, and the friction unit is used to apply the braking torque;

[0006] The utility model also comprises a performance monitoring unit, which is used for monitoring the braking performance of the disc brake.

[0007] Preferably, the active unit includes a floating support, which is installed on a mounting support, an annular hydraulic cylinder is slidably connected to the floating support, a plurality of limit keys are provided on the floating support, the limit keys cooperate with the annular hydraulic cylinder, a plurality of compression elastic parts are provided between the mounting support and the annular hydraulic cylinder, a transmission sleeve is provided at the center of the floating support, a connecting plate is fixed at one end of the transmission sleeve, the connecting plate is connected to the brake unit through bolts, and the other end of the transmission sleeve is connected to the vehicle drive shaft.

[0008] Preferably, the annular hydraulic cylinder includes a bottom cylinder plate, which is slidably connected to a floating support, and is provided with a plurality of key slots, which correspond one to one with the limit keys and cooperate with each other, an annular cylinder sleeve is fixed on the bottom cylinder plate, an annular piston is slidably connected inside the annular cylinder sleeve, a plurality of elastic elements are provided between the annular piston and the bottom cylinder plate, and a friction unit is connected to the end surface of the annular cylinder sleeve.

[0009] Preferably, the brake unit includes a connecting disc 2, the inner ring of the connecting disc 2 is connected to the connecting disc 1 by bolts, a wheel axle sleeve is fixed to the connecting disc 2, the outer ring of the connecting disc 2 is connected to the brake disc by bolts, and friction units are provided on both sides of the brake disc.

[0010] Preferably, the friction unit includes a left brake disc and a right brake disc, and a plurality of friction plates are arranged in an annular shape on the left brake disc and the right brake disc, and brake blocks are fixed on the friction plates, a plurality of connecting blocks are installed on the left brake disc, and the other end of the connecting block is connected to the annular cylinder sleeve, and a plurality of slots are provided on the right brake disc, and the slots and the connecting blocks cooperate with each other, and the right brake disc and the connecting blocks slide relative to each other, and the left brake disc and the right brake disc are connected by a plurality of connecting rods, and the connecting rods are each provided with a compression elastic member 2.

[0011] Preferably, the performance monitoring unit includes a control module, a data module, a detection module and an early warning module, and the detection module includes

[0012] Several temperature sensors: used to detect the temperature of the brake disc and brake pad, which are arranged on the brake disc and brake pad,

[0013] Mass sensor: used to detect the mass of the vehicle, which is installed on the frame.

[0014] The pressure sensor is used to detect the hydraulic pressure of the annular hydraulic cylinder and is arranged on the annular hydraulic cylinder.

[0015] Angular velocity sensor: used to detect the angular velocity of the wheel axle sleeve, which is arranged on the wheel axle sleeve;

[0016] Timing sensor: used to detect the interval time of continuous braking of the disc brake, which is set on the left brake disc;

[0017] Angular acceleration sensor: used to detect the angular acceleration of the wheel axle sleeve, which is arranged on the wheel axle sleeve;

[0018] The detection module is electrically connected to the data module, the control module is electrically connected to the data module and the early warning module, and the control module controls the operation of the early warning module based on the data structure of the data module.

[0019] Preferably, the control module controls the early warning module based on the data result of the data module, including the following steps:

[0020] Step 1: The data module calculates the current braking performance coefficient of the disc brake based on several temperature sensors, mass sensors, pressure sensors, angular velocity sensors, timing sensors and angular acceleration sensors:

[0021] = (1);

[0022] in: is the braking performance coefficient, is the friction coefficient between the brake disc and the brake pad, is the detection value of the pressure sensor, is the effective friction area, is the effective inner diameter of the brake pad on the brake disc, The effective outer diameter of the brake pad on the brake disc, The average radius , is the detection value of the mass sensor, is the acceleration due to gravity, is the road adhesion coefficient, is the detection value of the angular acceleration sensor, is the turning radius from the road surface to the wheel hub, is the road surface slip coefficient, is the detection value of the temperature sensor, is the heat dissipation coefficient of the brake disc and brake pad, is the detection value of the angular velocity sensor, is the detection value of the timing sensor, The optimum operating temperature for the brake disc and brake pad;

[0023] Step 2: Data Center Comparison and :

[0024] when When the alarm occurs, the control module starts the early warning unit to sound an alarm.

[0025] A brake system includes a disc brake, a drive sleeve and a wheel sleeve of the disc brake are connected to the output shaft of a reducer through splines, a mounting support of the disc brake is connected to a vehicle body through bolts, and a cooling assembly is provided on one side of the disc brake.

[0026] Preferably, the cooling component includes an air intake duct, which is fixed on the vehicle body, the other end of the air intake duct passes through and is connected to a transition duct, the other end of the transition duct is connected to an output duct, the transition duct is connected to a compensation duct, the other end of the compensation duct is connected to a compensation fan, an isolation net is installed at the connection between the air intake duct and the transition duct, a filter element is provided at the connection between the transition duct and the output duct, a compression fan is installed at the outlet end of the output duct, and an air intake adjustment module is provided on the air intake duct.

[0027] Preferably, the air intake adjustment module includes an adjustment plate, both ends of which are hingedly connected with an adjustment rod and a pulley, the adjustment rod is installed on an electric shaft, the electric shaft is rotatably connected to the air intake duct, the pulley is slidably connected to a slide, the slide is fixed on the side wall of the air intake duct, a stop pin is installed on the side wall of the air intake duct, a groove is provided above the air intake duct, and the adjustment plate and the groove cooperate with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 The structure of the disc brake of the present invention is schematically shown in FIG. Figure 1 ;

[0030] Figure 2 The structure of the disc brake of the present invention is schematically shown in FIG. Figure 2 ;

[0031] Figure 3 The structure of the disc brake of the present invention is schematically shown in FIG. Figure 3 ;

[0032] Figure 4 The structure of the disc brake of the present invention is schematically shown in FIG. Figure 4 ;

[0033] Figure 5 The structure of the braking system of the present invention is shown in FIG. Figure 1 ;

[0034] Figure 6 The structure of the braking system of the present invention is shown in FIG. Figure 2 .

[0035] In the figure: 1. Mounting support; 2. Active unit; 21. Floating support; 22. Limit key; 23. Compression elastic member 1; 24. Transmission shaft sleeve; 25. Connecting plate 1; 3. Annular hydraulic cylinder; 31. Bottom cylinder plate; 32. Keyway; 33. Annular cylinder sleeve; 34. Annular piston; 35. Elastic element; 4. Braking unit; 41. Connecting plate 2; 42. Axle sleeve; 43. Braking disc; 5. Friction unit; 51. Left brake disc; 52. Right brake disc; 53. Friction plate; 54. Brake block; 55. Connecting Block; 56, slot; 57, connecting rod; 58, compression elastic member 2; 8, disc brake; 81, reducer; 9, cooling assembly; 91, air intake duct; 92, transition duct; 93, output duct; 94, compensation duct; 95, compensation fan; 96, isolation net; 97, filter element; 98, compression fan; 10, air intake adjustment module; 101, adjustment plate; 102, adjustment rod; 103, pulley; 104, electric shaft; 105, slide; 106, stop pin; 107, groove. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0037] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0038] The present invention provides the following embodiments

[0039] Example 1

[0040] The present invention provides a disc brake, such as Figure 1-6 As shown, it comprises: a mounting support 1, an active unit 2 is mounted on the mounting support 1, a brake unit 4 and a friction unit 5 are connected to the active unit 2, the active unit 2 is used to drive the brake unit 4 and the friction unit 5, the brake unit 4 is used to transmit the braking torque, and the friction unit 5 is used to apply the braking torque;

[0041] The utility model also comprises a performance monitoring unit, which is used for monitoring the braking performance of the disc brake.

[0042] The working principle and beneficial effects of the above technical solution are as follows: the disc brake is fixed on the vehicle body by means of the mounting bracket 1, the active unit 2 on the mounting bracket 1 is reversely driven by hydraulic pressure, when the hydraulic pressure is applied, the active unit 2 is away from the friction unit 5 and does not brake, when the hydraulic pressure is released, the active unit 2 pushes the friction unit 5, so that the friction unit 5 and the brake unit 4 contact each other, under the action of pressure, the friction unit 5 and the brake unit 4 rub against each other to realize the braking function, the performance monitoring unit monitors the disc brake, and judges the braking performance of the disc brake according to the heat;

[0043] The present invention utilizes active unit 2, brake unit 4 and friction unit 5 to realize braking. The design adopts full disc design. Under the same pressure, the braking torque is larger, and the braking time and braking distance are relatively shorter. The brake unit 4 is made of carbon ceramic material, which is relatively light in weight and has large heat capacity. The friction coefficient will not decay with the increase of braking temperature. Moreover, the full disc design is adopted. The braking torque distribution during braking is more uniform, the braking process is more stable, and the stability of the vehicle during braking is ensured. At the same time, the brake adopts a mechanical, reverse hydraulic braking model. When there is hydraulic pressure, the brake does not brake, and when there is no hydraulic pressure, the brake brakes. The design ensures that when the hydraulic system fails, the brake can still achieve reliable braking of the vehicle, and the braking heat of the disc brake is monitored by the performance monitoring unit, so as to give an early warning of the reduction of braking performance and ensure driving safety.

[0044] Example 2

[0045] On the basis of Example 1, the active unit 2 includes a floating support 21, which is installed on the mounting support 1. An annular hydraulic cylinder 3 is slidably connected to the floating support 21. A plurality of limit keys 22 are provided on the floating support 21. The limit keys 22 cooperate with the annular hydraulic cylinder 3. A plurality of compression elastic parts 23 are provided between the mounting support 1 and the annular hydraulic cylinder 3. A transmission sleeve 24 is provided at the center of the floating support 21. A connecting plate 25 is fixed at one end of the transmission sleeve 24. The connecting plate 25 is connected to the brake unit 4 through bolts. The other end of the transmission sleeve 24 is connected to the vehicle drive shaft.

[0046] The annular hydraulic cylinder 3 includes a bottom cylinder plate 31, which is slidably connected to the floating support 21. The bottom cylinder plate 31 is provided with a plurality of key slots 32, which correspond to and cooperate with the limit keys 22 one by one. An annular cylinder sleeve 33 is fixed on the bottom cylinder plate 31, and an annular piston 34 is slidably connected in the annular cylinder sleeve 33. A plurality of elastic elements 35 (such as disc springs) are provided between the annular piston 34 and the bottom cylinder plate 31, and a friction unit 5 is connected to the end surface of the annular cylinder sleeve 33.

[0047] The working principle and beneficial effects of the above technical solution are as follows: the active unit 2 is installed on the mounting support 1 through the floating support 21. When braking is not performed, the annular hydraulic cylinder 3 is pressurized to shrink. Under the action of the compression elastic member 23, the distance between the annular hydraulic cylinder 3 and the mounting support 1 is kept at the maximum. When braking is performed, the annular hydraulic cylinder 3 is depressurized to extend. The annular hydraulic cylinder 3 squeezes the friction unit 5. Under the action of the reaction force, the annular hydraulic cylinder 3 slides along the floating support 21, squeezing the compression elastic member 23. The annular hydraulic cylinder 3 is close to the mounting support 1, and the transmission shaft sleeve 24 transmits the torque to the brake unit 4 through the connecting plate 25.

[0048] When the annular hydraulic cylinder 3 is pressurized, the annular piston 34 and the annular cylinder sleeve 33 are close to each other, and the two squeeze the elastic element 35. When the annular hydraulic cylinder 3 is depressurized, the elastic element 35 releases the pressure, pushing the annular piston 34 and the annular cylinder sleeve 33 to slide relative to each other, so that the annular piston 34 squeezes the friction unit 5, and then the bottom cylinder plate 31 is pushed back to slide relatively along the floating support 21 under the action of the reaction force. The limit key 22 and the key slot 32 ensure the sliding direction, and the bottom cylinder plate 31 squeezes and compresses the elastic member 23.

[0049] The present invention utilizes the floating support 21, the mounting support 1 and the annular hydraulic cylinder 3 to realize the action of the active unit 2. This design can ensure that the disc brake is fixed while realizing the floating of the brake unit 4 and the friction unit 5, thereby ensuring the stability of the braking process. In addition, the design of the compression elastic member 23 ensures the reset of the annular hydraulic cylinder 3 on the floating support 21. At the same time, the design of the transmission sleeve 24 and the connecting plate 25 ensures the transmission of the torque, thereby realizing the premise of braking.

[0050] The annular hydraulic cylinder 3 is retracted and retracted through the annular piston 34 and the annular cylinder sleeve 33. This design can ensure pressure while occupying a small space and having light weight. Compared with the existing hydraulic mechanism, the performance is more superior. In addition, the annular hydraulic cylinder 3 adopts a reverse hydraulic design, and braking is performed only when there is no hydraulic pressure, ensuring that the vehicle can still be braked when the hydraulic system fails. At the same time, the design of the elastic element 35 realizes the storage and utilization of the hydraulic energy in the annular hydraulic cylinder 3, thereby increasing the capacity utilization rate.

[0051] Example 3

[0052] On the basis of Example 1, the brake unit 4 includes a connecting disc 2 41, the inner ring of the connecting disc 2 41 is connected to the connecting disc 1 25 by bolts, a wheel axle sleeve 42 is fixed to the connecting disc 2 41, the outer ring of the connecting disc 2 41 is connected to the brake disc 43 by bolts, and friction units 5 are provided on both sides of the brake disc 43.

[0053] The friction unit 5 includes a left brake disc 51 and a right brake disc 52. A plurality of friction plates 53 are annularly fixed on the left brake disc 51 and the right brake disc 52. Brake blocks 54 are fixed on the friction plates 53. A plurality of connecting blocks 55 are installed on the left brake disc 51. The other end of the connecting block 55 is connected to the annular cylinder sleeve 33. A plurality of slots 56 are provided on the right brake disc 52. The slots 56 cooperate with the connecting blocks 55. The right brake disc 52 slides relative to the connecting blocks 55. The left brake disc 51 and the right brake disc 52 are connected by a plurality of connecting rods 57. The connecting rods 57 are sleeved with compression elastic members 58.

[0054] The working principle and beneficial effects of the above technical solution are as follows: the brake unit 4 is connected to the active unit 2 through the connecting disc 2 41, and the brake disc 43 rotates following the transmission shaft sleeve 24. When the annular hydraulic cylinder 3 is pressurized, the left brake disc 51 and the right brake disc 52 of the friction unit 5 maintain a distance from the brake disc 43 under the action of the compression elastic member 2 58, and there is no drag torque. When the annular hydraulic cylinder 3 is depressurized, the annular hydraulic cylinder 3 pushes the right brake disc 52 to slide along the connecting block 55, and the right brake disc 52 stops sliding after contacting the brake disc 43. , the annular hydraulic cylinder 3 continues to extend, and then under the reaction, the annular hydraulic cylinder 3 slides along the floating support 21. When the annular hydraulic cylinder 3 slides, it pulls the left brake disc 51 to slide along the connecting rod 57 through the connecting block 55. Finally, the left brake disc 51 also contacts the brake disc 43. The left brake disc 51 and the right brake disc 52 squeeze the brake disc 43 under the pulling force and thrust of the annular hydraulic cylinder 3 respectively. The brake block 54 on the friction plate 53 rubs against the brake disc 43, gradually slowing down the rotation speed of the brake disc 43, and then feeding back to the driving wheel and the reduction box to achieve braking;

[0055] The present invention utilizes a connecting disc 2 41 to connect with the brake disc 43. This design can ensure lossless and stable transmission of the torque through a rigid connection, and ensure that the rotation speed of the brake disc 43 and the driving wheel remain consistent. The left brake disc 51 and the right brake disc 52 are connected by a connecting rod. This design can not only ensure that the left brake disc 51 slides on the connecting rod 57 for braking during braking, but also ensure that when not braking, under the action of the compression elastic member 2 58, the left brake disc 51 and the right brake disc 52 are kept away from the brake disc 43 to avoid working condition conflicts. At the same time, the design of the friction plate 53 and the brake block 54 can ensure that the brake block 54 will only damage the friction plate 53 after wear, and will not cause damage to the left brake disc 51 and the right brake disc 52.

[0056] Example 4

[0057] Based on Example 1, the performance monitoring unit includes a control module, a data module, a detection module and an early warning module. The detection module includes

[0058] Several temperature sensors: used to detect the temperature of the brake disc 43 and the brake pad 54, which are arranged on the brake disc 43 and the brake pad 54,

[0059] Mass sensor: used to detect the mass of the vehicle, which is installed on the frame.

[0060] The pressure sensor is used to detect the hydraulic pressure of the annular hydraulic cylinder 3 and is arranged on the annular hydraulic cylinder 3.

[0061] Angular velocity sensor: used to detect the angular velocity of the axle sleeve 42, and disposed on the axle sleeve 42;

[0062] Timing sensor: used to detect the interval time of continuous braking of the disc brake, which is arranged on the left brake disc 51;

[0063] Angular acceleration sensor: used to detect the angular acceleration of the axle sleeve 42, and disposed on the axle sleeve 42;

[0064] The detection module is electrically connected to the data module, the control module is electrically connected to the data module and the early warning module, and the control module controls the operation of the early warning module based on the data structure of the data module.

[0065] The control module controls the early warning module based on the data results of the data module, including the following steps:

[0066] Step 1: The data module calculates the current braking performance coefficient of the disc brake based on several temperature sensors, mass sensors, pressure sensors, angular velocity sensors, timing sensors and angular acceleration sensors:

[0067] = (1);

[0068] in: is the braking performance coefficient, is the friction coefficient between the brake disc 43 and the brake pad 54, is the detection value of the pressure sensor, in units of , is the effective friction area, in units of , is the effective inner diameter of the brake pad 54 on the brake disc 43, in units of , The effective outer diameter of the brake pad 54 on the brake disc 43 is in , The average radius , is the detection value of the mass sensor, in units of , is the acceleration due to gravity, in units of , is the road adhesion coefficient, is the detection value of the angular acceleration sensor, in units of , is the rotation radius from the road surface to the wheel sleeve 42, in units of , is the road surface slip coefficient, is the detection value of the temperature sensor, in units of , is the heat dissipation coefficient of the brake disc 43 and the brake pad 54, in units of , is the detection value of the angular velocity sensor, in units of , is the detection value of the timing sensor, in units of , is the optimum operating temperature of the brake disc 43 and the brake pad 54, in units of ;

[0069] Step 2: Data Center Comparison and :

[0070] when When the alarm occurs, the control module starts the early warning unit to sound an alarm.

[0071] The working principle and beneficial effects of the above technical solution are as follows: since the disc brake converts the kinetic energy of the brake disc into the friction internal energy between the brake disc 43 and the brake pad 54 when braking, a large amount of heat generated between the brake disc 43 and the brake pad 54 accumulates on the brake disc 43 and the brake pad 54 when the disc brake is continuously braking. The relative friction between the brake disc 43 and the brake pad 54 is affected by the temperature. When the temperature rises, the braking performance of the brake disc 43 and the brake pad 54 decreases. When the braking performance decreases to a certain extent, the braking efficiency is low and effective braking cannot be performed. Therefore, the braking performance coefficient of the disc brake is measured by monitoring the heat of the disc brake.

[0072] The present invention utilizes a control module, a data module, a detection module and an early warning module to monitor the disc brake in real time, thereby ensuring the braking performance of the disc brake, avoiding vehicle safety accidents caused by failure of the braking performance, and ensuring the safety of the driver and passengers.

[0073] Example 5

[0074] On the basis of embodiments 1-4, it includes: a disc brake 8, a transmission shaft sleeve 24 and a wheel shaft sleeve 42 of the disc brake 8 are spline-connected to the output shaft of the reducer 81, a mounting bracket 1 of the disc brake 8 is bolted to the vehicle body, and a cooling assembly 9 is provided on one side of the disc brake 8.

[0075] The cooling assembly 9 includes an air intake duct 91, which is fixed on the vehicle body. The other end of the air intake duct 91 passes through and is connected to a transition duct 92. The other end of the transition duct 92 is connected to an output duct 93. The transition duct 92 is connected to a compensation duct 94. The other end of the compensation duct 94 is connected to a compensation fan 95. An isolation net 96 is installed at the connection between the air intake duct 91 and the transition duct 92. A filter element 97 is provided at the connection between the transition duct 92 and the output duct 93. A compression fan 98 is installed at the outlet end of the output duct 93. An air intake adjustment module 10 is provided on the air intake duct 91.

[0076] The air intake adjustment module 10 includes an adjustment plate 101, and the two ends of the adjustment plate 101 are hinged with an adjustment rod 102 and a pulley 103 respectively. The adjustment rod 102 is installed on an electric shaft 104, and the electric shaft 104 is rotatably connected to the air intake duct 91. The pulley 103 is slidably connected to a slide 105, and the slide 105 is fixed on the side wall of the air intake duct 91. A stop pin 106 is installed on the side wall of the air intake duct 91, and a groove 107 is provided above the air intake duct 91. The adjustment plate 101 and the groove 107 cooperate with each other.

[0077] The working principle and beneficial effects of the above technical solution are as follows: the disc brake 8 is connected to the output shaft of the reducer 81 to transmit the driving torque and the braking torque, the cooling component 9 dissipates the heat generated by the disc brake 8, and when cooling is not required, the relative flow air generated during the vehicle's driving passes through the air intake duct 91. When cooling is required, the air intake adjustment module 10 works to block the flow air passing through the air intake duct 91, the electric shaft 104 rotates to drive the adjustment rod 102 to rotate, the adjustment rod 102 pulls the adjustment plate 101 to slide forward, and the adjustment plate 101 slides up The wheel 103 moves forward along the slide 105 until the adjustment rod 102 is blocked by the stop pin 106, so that the adjustment plate 101 blocks the air inlet duct 91. Under the action of the adjustment plate 101, the flowing air enters the transition duct 92. The isolation net 96 blocks the large volume objects in the airflow, and the airflow continues to enter the output duct 93. The filter element 97 on the output duct 93 filters the dust in the airflow and outputs it through the compression fan 98 to dissipate the heat for the disc brake 8. When the relative airflow is insufficient, the compensation fan 95 starts to work and outputs the airflow through the compensation duct 94.

[0078] The present invention utilizes the cooling assembly 9 to dissipate the heat of the disc brake 8. This design can effectively increase the heat dissipation rate of the disc brake 8 and reduce the risk of failure of the disc brake 8. Moreover, the design of the air intake duct 91 can ensure that the airflow does not enter the transition duct 92 when cooling is not required. When cooling is required, the air intake regulating module 10 ensures the entry of the airflow. The design of the compensating fan 95 and the compensating duct 94 can ensure that when the relative airflow is insufficient, the cooling of the disc brake 8 can still be guaranteed. At the same time, the air intake regulating module 10 adjusts the air intake amount through the adjusting plate 101. This design structure occupies a small space and is highly flexible with the design of the adjusting rod 102 and the pulley 103.

[0079] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A disc brake, characterized in that: include: A mounting support (1), an active unit (2) being mounted on the mounting support (1), a brake unit (4) and a friction unit (5) being connected to the active unit (2), the active unit (2) being used to drive the brake unit (4) and the friction unit (5), the brake unit (4) being used to transmit a braking torque, and the friction unit (5) being used to apply a braking torque; Also included is a performance monitoring unit, which is used to monitor the braking performance of the disc brake; The active unit (2) includes a floating support (21), the floating support (21) is mounted on the mounting support (1), an annular hydraulic cylinder (3) is slidably connected to the floating support (21), a plurality of limit keys (22) are provided on the floating support (21), the limit keys (22) and the annular hydraulic cylinder (3) cooperate with each other, a plurality of compression elastic members (23) are provided between the mounting support (1) and the annular hydraulic cylinder (3), a transmission sleeve (24) is provided at the center of the floating support (21), a connecting plate (25) is fixed to one end of the transmission sleeve (24), the connecting plate (25) is connected to the brake unit (4) by bolts, and the other end of the transmission sleeve (24) is connected to the vehicle drive shaft; The annular hydraulic cylinder (3) comprises a bottom cylinder plate (31), the bottom cylinder plate (31) is slidably connected to the floating support (21), a plurality of key slots (32) are provided on the bottom cylinder plate (31), the key slots (32) correspond to and cooperate with the limit keys (22) one by one, an annular cylinder sleeve (33) is fixed on the bottom cylinder plate (31), an annular piston (34) is slidably connected in the annular cylinder sleeve (33), a plurality of elastic elements (35) are provided between the annular piston (34) and the bottom cylinder plate (31), and a friction unit (5) is connected to the end surface of the annular cylinder sleeve (33); The brake unit (4) comprises a second connection disc (41), the inner ring of the second connection disc (41) is connected to the first connection disc (25) by bolts, a wheel axle sleeve (42) is fixed to the second connection disc (41), the outer ring of the second connection disc (41) is connected to a brake disc (43) by bolts, and friction units (5) are provided on both sides of the brake disc (43); The friction unit (5) comprises a left brake disc (51) and a right brake disc (52). A plurality of friction plates (53) are arranged in an annular shape on the left brake disc (51) and the right brake disc (52). A brake block (54) is fixed on the friction plate (53). A plurality of connecting blocks (55) are installed on the left brake disc (51). The other end of the connecting block (55) is connected to the annular cylinder sleeve (33). A plurality of slots (56) are provided on the right brake disc (52). The slots (56) and the connecting blocks (55) cooperate with each other. The right brake disc (52) and the connecting blocks (55) slide relative to each other. The left brake disc (51) and the right brake disc (52) are connected by a plurality of connecting rods (57). The connecting rods (57) are sleeved with a second compression elastic member (58).

2. The disc brake according to claim 1, characterized in that: The performance monitoring unit includes a control module, a data module, a detection module and an early warning module. The detection module includes A plurality of temperature sensors: used to detect the temperature of the brake disc (43) and the brake pad (54), which are arranged on the brake disc (43) and the brake pad (54), Mass sensor: used to detect the mass of the vehicle, which is installed on the frame. A pressure sensor is used to detect the hydraulic pressure of the annular hydraulic cylinder (3), and is arranged on the annular hydraulic cylinder (3). An angular velocity sensor: used for detecting the angular velocity of the wheel axle sleeve (42), and arranged on the wheel axle sleeve (42); A timing sensor: used for detecting the interval time of continuous braking of the disc brake, and arranged on the left brake disc (51); An angular acceleration sensor: used for detecting the angular acceleration of the wheel axle sleeve (42), and arranged on the wheel axle sleeve (42); The detection module is electrically connected to the data module, the control module is electrically connected to the data module and the early warning module, and the control module controls the operation of the early warning module based on the data structure of the data module.

3. The disc brake according to claim 2, characterized in that: The control module controls the early warning module based on the data results of the data module, including the following steps: Step 1: The data module calculates the current braking performance coefficient of the disc brake based on several temperature sensors, mass sensors, pressure sensors, angular velocity sensors, timing sensors and angular acceleration sensors: = （1）； in: is the braking performance coefficient, is the friction coefficient between the brake disc (43) and the brake pad (54), is the detection value of the pressure sensor, is the effective friction area, is the effective inner diameter of the brake pad (54) on the brake disc (43), The effective outer diameter of the brake pad (54) on the brake disc (43), is the average radius ( ), is the detection value of the mass sensor, is the acceleration due to gravity, is the road adhesion coefficient, is the detection value of the angular acceleration sensor, is the rotation radius from the road surface to the wheel hub (42), is the road surface slip coefficient, is the detection value of the temperature sensor, is the heat dissipation coefficient of the brake disc (43) and the brake pad (54), is the detection value of the angular velocity sensor, is the detection value of the timing sensor, is the optimum operating temperature of the brake disc (43) and the brake pad (54); Step 2: Data Center Comparison and : when When the alarm occurs, the control module starts the early warning unit to sound an alarm.

4. A brake system, applied to a disc brake as claimed in any one of claims 1 to 3, characterized in that: The invention comprises a disc brake (8), wherein a transmission shaft sleeve (24) and a wheel shaft sleeve (42) of the disc brake (8) are connected to an output shaft of a reducer (81) via a spline, a mounting support (1) of the disc brake (8) is connected to a vehicle body via bolts, and a cooling assembly (9) is provided on one side of the disc brake (8).

5. The braking system according to claim 4, characterized in that: The cooling assembly (9) comprises an air intake duct (91), the air intake duct (91) being fixed on the vehicle body, the other end of the air intake duct (91) penetrating and connected to a transition duct (92), the other end of the transition duct (92) being connected to an output duct (93), the transition duct (92) being connected to a compensation duct (94), the other end of the compensation duct (94) being connected to a compensation fan (95), an isolation net (96) being installed at the connection between the air intake duct (91) and the transition duct (92), a filter element (97) being provided at the connection between the transition duct (92) and the output duct (93), a compression fan (98) being installed at the outlet end of the output duct (93), and an air intake adjustment module (10) being provided on the air intake duct (91).

6. The braking system according to claim 4, characterized in that: The air intake adjustment module (10) comprises an adjustment plate (101), and the two ends of the adjustment plate (101) are respectively hingedly connected to an adjustment rod (102) and a pulley (103), the adjustment rod (102) is mounted on an electric rotating shaft (104), the electric rotating shaft (104) is rotatably connected to the air intake duct (91), the pulley (103) is slidably connected to a slideway (105), the slideway (105) is fixed to the side wall of the air intake duct (91), a stop pin (106) is mounted on the side wall of the air intake duct (91), a groove (107) is provided above the air intake duct (91), and the adjustment plate (101) and the groove (107) cooperate with each other.

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