A test bench for testing performance of automobile disc brakes in simulation of dynamic road

Abstract

The application discloses a kind of automobile disc brake performance test test benches of simulating dynamic road, and it relates to the technical field of automobile test equipment.The automobile disc brake performance test test benches of simulating dynamic road, including base plate, the top of base plate is fixedly connected with mounting seat, the inside rotationally connected with adapter sleeve of mounting seat, the inside of adapter sleeve is provided with clutch lever assembly, the front of base plate is provided with adjusting slide bar, the back of base plate is provided with environment simulation assembly.The automobile disc brake performance test test benches of simulating dynamic road, by setting clutch lever assembly, adjusting slide bar, environment simulation assembly and detection assembly, the simulation of lateral force and lock difference of curve braking, the reproduction of complex airflow and rainfall environment and the real-time monitoring of thermal decay and wear are realized, so as to realize the comprehensive evaluation of brake performance under dynamic road working condition.

Description

Technical Field

[0001] This invention relates to the field of automotive testing equipment technology, specifically to a test bench for testing the performance of automotive disc brakes that simulates dynamic roads. Background Technology

[0002] Disc brakes, also known as disc brakes, mainly consist of a brake disc, brake caliper, brake pads, and a hydraulic or pneumatic drive system. They are the core actuators of a car's braking system. Their principle is that the piston pushes the brake pads to clamp the brake disc, which rotates with the wheel, generating friction to achieve braking. Their braking performance is directly related to vehicle driving safety. In the research and development and verification of disc brakes, brake test benches or real vehicle road tests are usually used to evaluate their braking torque, heat fade, wear, and noise characteristics. However, traditional test benches mainly simulate straight-line uniform speed or single deceleration braking conditions. Their loading methods only consider longitudinal braking force and vertical load, ignoring the influence of lateral force generated by centrifugal force on the brakes when the vehicle is driving in a curve. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a test bench for simulating dynamic road conditions to test the performance of automotive disc brakes, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a test bench for simulating dynamic road conditions for automotive disc brake performance, comprising a base plate, a mounting seat fixedly connected to the top of the base plate, a connecting sleeve rotatably connected inside the mounting seat, a caliper fixedly connected to the right side of the mounting seat, a brake disc fixedly connected to the outer surface of the right side of the connecting sleeve, a brake oil chamber fixedly connected to the left side of the caliper, a protrusion provided on the inner surface of the connecting sleeve, a clutch lever assembly provided inside the connecting sleeve, an adjusting slide rod provided on the front of the base plate, and an environmental simulation component provided on the back of the base plate; The clutch lever assembly includes: The clutch lever body includes a biting rod that is slidably connected to the inside of the connecting sleeve through a groove. The top left side of the biting rod has a flat surface and a sliding groove. A positioning sliding rod is fixedly connected inside the sliding groove of the biting rod. A contact slip ring is slidably connected to the outer surface of the biting rod. The contact slip ring is slidably connected to the outer surface of the positioning sliding rod by a spring. The slide is slidably connected to the top of the base plate. The slide is located on the left side of the mounting base. A drive frame is rotatably connected inside the slide. The drive frame is slidably connected to the outer surface of the biting rod. The clutch sleeve includes a fixing ring fixedly connected to the left side of the connecting sleeve, a connecting rod fixedly connected to the left side of the fixing ring, an mounting plate fixedly connected to the left side of the connecting rod, and a main pressure plate fixedly connected to the left side of the mounting plate.

[0005] Preferably, the adjusting slide bar includes a slide bar plate slidably connected to the top of the base plate, a rotating seat fixedly connected to the top of the slide bar plate, the rotating seat being rotatably connected to the end of the engagement rod inside, a rotating joint being rotatably connected to the top of the slide bar plate, a hydraulic cylinder being rotatably connected to one end of the rotating joint, and the bottom of the hydraulic cylinder being fixedly connected to the top of the base plate.

[0006] Preferably, the environmental simulation component includes a mounting plate fixedly connected to the back of the base plate. A flexible air pipe is connected to the back of the mounting plate, and the other end of the flexible air pipe is connected to an external blower. A spray rack is provided on the back of the mounting plate. The spray rack includes a support frame fixedly connected to the top of the mounting plate. A hanging plate is fixedly connected to the front of the support frame. A nozzle is fixedly connected to the bottom of the hanging plate. The nozzle is connected to an external water pump and is located on the back of the brake disc.

[0007] Preferably, a detection component is provided on the top of the base plate. The detection component includes a detection bracket fixedly connected to the top of the base plate. Infrared temperature probes are fixedly connected to the left and right sides of the top of the detection bracket, and laser ranging sensors are fixedly connected to the left and right sides of the top of the detection bracket. The detection bracket is located at the bottom of the brake disc, and the infrared temperature probes and laser ranging sensors face the outer surface of the brake disc.

[0008] Preferably, a secondary pressure plate is fixedly connected to the right side of the drive frame, teeth are provided on the outer surface of the drive frame, a drive motor is fixedly connected to the top of the slide, the drive motor is located on one side of the drive frame, and the drive motor meshes with the outer surface of the drive frame through gears.

[0009] Preferably, a baffle plate is fixedly connected to the top of the slide bar, the top of the baffle plate is tilted backward, and an observation window is embedded in the front of the baffle plate. The observation window is made of tempered glass.

[0010] Preferably, a force-applying rod is fixedly connected to the back of the slide bar, and pressure blocks are provided on both the left and right sides of the force-applying rod. The top of the force-applying rod is flush with the top of the brake disc.

[0011] Preferably, a lateral simulation auxiliary component is provided on the top of the base plate. The lateral simulation auxiliary component includes a fixed frame fixedly connected to the top of the base plate. The fixed frame is located on the back of the clutch lever assembly. A vent box is fixedly connected to the front of the fixed frame. A speed-adjusting flow shaft is rotatably connected inside the vent box. A lateral airflow rod is provided on the right side of the fixed frame.

[0012] Preferably, the ventilation box includes a box body fixedly connected to the front of the fixing frame. The box body has a through hole on each of its left and right sides near the top and bottom. The top and bottom of the inner wall of the box body are slidably connected to a flow regulating slider. The bottom of the flow regulating slider located at the bottom of the inner wall of the box body is slidably connected to the bottom of the inner wall of the box body by a spring. The front of the flow regulating slider has a through hole, and the through hole of the flow regulating slider communicates with the through hole of the box body.

[0013] Preferably, the speed-adjusting shaft includes a drive gear rotatably connected to the left side of the fixed frame. The outer surface of the drive gear meshes with the outer surface of the fixed ring through its teeth. A shaft body is fixedly connected to the right side of the drive gear. A centrifugal push block is slidably connected to the outer surface of the shaft body radially through a spring. The shaft body is located inside the housing, and the centrifugal push block is located at the bottom of the speed-adjusting slider.

[0014] Preferably, a cam is fixedly connected to the right side of the shaft, and the lateral airflow rod includes a blowing swing rod rotatably connected to the right side of the fixed frame. The blowing swing rod has a hollow structure inside, and a counterweight rod is connected to the back of the blowing swing rod. The top of the counterweight rod of the blowing swing rod is connected to a through hole near the top of the right side of the housing through a flexible tube. A horizontal nozzle is connected to the right side of the blowing swing rod, and the horizontal nozzle faces the right side of the mounting base. An inner nozzle is connected to the through hole near the bottom of the right side of the housing through a rigid tube, and a nozzle head is provided on the right side of the inner nozzle.

[0015] Preferably, there are two caliper and clutch lever assemblies, which are symmetrically distributed on the top of the base plate.

[0016] This invention provides a test bench for simulating dynamic road conditions to test the performance of automotive disc brakes. It has the following advantages: 1. This test bench for simulating dynamic road conditions for automobile disc brake performance simulates the application of dynamic longitudinal loads and braking torques to the brake disc by setting up a clutch rod assembly and adjusting slide rod, utilizing the sliding connection between the internal drive frame and the engagement rod of the slide, and the left and right movement of the rotating seat and the hydraulic cylinder driving the force rod. It provides safe and visible test observation conditions using a shield and observation window, and ultimately achieves accurate simulation of the braking conditions of variable speed and load during actual vehicle driving.

[0017] 2. This simulated dynamic road test bench for automotive disc brake performance utilizes an environmental simulation component. A flexible air tube on the mounting plate provides controllable airflow, which, in conjunction with nozzles on the spray gun's lower plate, sprays liquid onto the brake disc. This achieves synchronous simulation of airflow changes on the brake disc surface and wet / slippery road conditions. Combined with an infrared temperature probe and laser rangefinder on the testing bracket, the brake disc temperature and thickness are monitored in real time. The longitudinal pushing of the force bar in the adjusting slide rod, along with the opening and closing of the nozzles in the spray gun within the environmental simulation component, simulates the changing forces and adhesion conditions of the brake disc on wet / slippery roads. Ultimately, this allows for a comprehensive evaluation of the brake's thermal fade and wear characteristics under combined conditions of rainfall, water accumulation, and airflow interference.

[0018] 3. This test bench for simulating dynamic road conditions for automobile disc brake performance, by setting up a lateral simulation auxiliary component, utilizes the drive gear in the speed-adjusting shaft to drive the centrifugal push block to adjust the opening of the flow-adjusting slider by changing the rotation speed of the fixed ring. In conjunction with the air blowing swing rod and the lateral nozzle and inner nozzle, differentiated lateral airflow is sprayed onto the inner and outer sides of the brake disc, realizing the simulation of lateral force loading that adapts to the rotation speed of the brake disc. By utilizing the meshing and cooperation between the fixed ring outside the connecting sleeve in the clutch rod assembly and the drive gear of the speed-adjusting shaft in the lateral simulation auxiliary component, the correlation between the magnitude of the lateral airflow and the rotation speed of the brake disc is realized, ultimately achieving a realistic reproduction of the influence of centrifugal force on braking performance when the vehicle is driving on a curve. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall rear structure of the present invention; Figure 2 This is a schematic diagram of the overall front structure of the present invention; Figure 3 This is a schematic diagram of the overall internal structure of the present invention; Figure 4 This is a cross-sectional schematic diagram of the internal structure of the clutch lever assembly of the present invention; Figure 5 For the present invention Figure 4 Enlarged schematic diagram of the structure at point B in the diagram; Figure 6 For the present invention Figure 4 Enlarged schematic diagram of the structure at point C; Figure 7 This is a schematic diagram showing the positional relationship between the clutch lever and the clutch sleeve of the present invention; Figure 8 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the diagram; Figure 9 This is a schematic diagram showing the positional relationship between the lateral simulation auxiliary component and the clutch lever assembly of the present invention; Figure 10 A cross-sectional view of the internal structure of the ventilation box of this invention.

[0020] In the diagram: 1. Base plate; 11. Mounting seat; 12. Connecting sleeve; 2. Caliper; 21. Brake disc; 22. Brake oil chamber; 3. Clutch lever assembly; 31. Clutch lever body; 311. Engaging rod; 312. Positioning slide rod; 313. Contact slip ring; 32. Slide carriage; 321. Drive frame; 33. Clutch sleeve; 331. Fixing ring; 332. Connecting rod; 333. Mounting plate; 334. Main pressure plate; 335. Secondary pressure plate; 34. Drive motor; 4. Adjusting slide rod; 41. Slide rod plate; 42. Rotating seat; 43. Baffle plate; 44. Rotary joint; 441. Hydraulic cylinder; 45. Force application rod; 4 6. Observation window; 5. Environmental simulation component; 51. Mounting plate; 52. Flexible air tube; 53. Sprayer rack; 531. Support frame; 532. Drooping plate; 533. Nozzle; 6. Detection component; 61. Detection bracket; 62. Infrared temperature probe; 63. Laser rangefinder sensor; 7. Lateral simulation auxiliary component; 71. Fixing frame; 72. Ventilation box; 721. Box body; 722. Flow adjustment slider; 73. Speed-adjusting flow shaft; 731. Drive gear; 732. Shaft body; 733. Centrifugal push block; 74. Lateral airflow rod; 741. Air blowing swing rod; 742. Lateral nozzle; 743. Inner nozzle. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0023] Example Please see Figure 1-8 This invention provides a technical solution: a test bench for simulating dynamic road conditions and testing the performance of automotive disc brakes, comprising a base plate 1, a mounting seat 11 fixedly connected to the top of the base plate 1, a connecting sleeve 12 rotatably connected inside the mounting seat 11, a protrusion provided on the inner surface of the connecting sleeve 12, a caliper 2 fixedly connected to the right side of the mounting seat 11, a brake disc 21 fixedly connected to the outer right surface of the connecting sleeve 12, a brake oil chamber 22 fixedly connected to the left side of the caliper 2, the brake oil chamber 22 communicating with an external oil pump device, and a clutch lever assembly 3 provided inside the connecting sleeve 12, the clutch lever assembly 3 comprising: The clutch lever body 31 includes a biting rod 311 that is slidably connected to the inside of the connecting sleeve 12 through a groove. The top left side of the biting rod 311 has a flat surface and a sliding groove. A positioning slide rod 312 is fixedly connected inside the sliding groove of the biting rod 311. A contact slip ring 313 is slidably connected to the outer surface of the biting rod 311. The contact slip ring 313 is slidably connected to the outer surface of the positioning slide rod 312 through a spring. The slide 32 is slidably connected to the top of the base plate 1. The bottom of the slide 32 is slidably connected to the inside of the base plate 1 via a spring. The slide 32 is located on the left side of the mounting base 11. The drive frame 321 is rotatably connected inside the slide 32. The outer surface of the drive frame 321 is provided with teeth. The inside of the drive frame 321 is slidably connected to the outer surface of the biting rod 311. The clutch sleeve 33 includes a fixed ring 331 fixedly connected to the left side of the connecting sleeve 12. A toothed ring is fixedly connected to the outer surface of the fixed ring 331. A connecting rod 332 is fixedly connected to the left side of the fixed ring 331. A mounting plate 333 is fixedly connected to the left side of the connecting rod 332. A main pressure plate 334 is fixedly connected to the left side of the mounting plate 333. An auxiliary pressure plate 335 is fixedly connected to the right side of the drive frame 321. Drive motor 34 is fixedly connected to the top of slide 32. Drive motor 34 is located on one side of drive frame 321. Drive motor 34 meshes with the outer surface of drive frame 321 through gears. Drive motor 34 is equipped with a rotary encoder. Drive motor 34 is electrically connected to external monitoring equipment to indirectly provide speed data of brake disc 21. There are two calipers 2 and two clutch lever assemblies 3, which are symmetrically distributed on the top of the base plate 1; An adjusting slide bar 4 is provided on the front of the base plate 1. The adjusting slide bar 4 includes a slide bar plate 41 slidably connected to the top of the base plate 1. A rotating seat 42 is fixedly connected to the top of the slide bar plate 41. The rotating seat 42 is rotatably connected to the end of the engagement rod 311. A baffle plate 43 is fixedly connected to the top of the slide bar plate 41. The top of the baffle plate 43 is tilted backward. A rotating joint 44 is rotatably connected to the top of the slide bar plate 41. A hydraulic cylinder 441 is rotatably connected to one end of the rotating joint 44. The hydraulic cylinder 441 is connected to an external hydraulic pump device to control the working state of the hydraulic cylinder 441. The bottom of the hydraulic cylinder 441 is fixedly connected to the top of the base plate 1. A force-applying rod 45 is fixedly connected to the back of the slide bar plate 41. Pressure blocks are provided on both the left and right sides of the force-applying rod 45. Pressure sensors are embedded inside the pressure blocks. The top of the force-applying rod 45 is flush with the top of the brake disc 21. An observation window 46 is embedded on the front of the baffle plate 43. The observation window 46 is made of tempered glass. An environmental simulation component 5 is provided on the back of the base plate 1. The environmental simulation component 5 includes a mounting plate 51 fixedly connected to the back of the base plate 1. A flexible air tube 52 is connected to the back of the mounting plate 51 to simulate the airflow changes outside the brake disc 21 during testing. After the test, high-speed airflow is used to assist in cleaning the test bench. The other end of the flexible air tube 52 is connected to an external blower. A spray rack 53 is provided on the back of the mounting plate 51. The spray rack 53 includes a support frame 531 fixedly connected to the top of the mounting plate 51 to simulate the scenario of the vehicle in a rainy environment or passing through a water section. A hanging plate 532 is fixedly connected to the front of the support frame 531. A nozzle 533 is fixedly connected to the bottom of the hanging plate 532. The nozzle 533 is connected to an external water pump and is located on the back of the brake disc 21. A detection component 6 is provided on the top of the base plate 1. The detection component 6 includes a detection bracket 61 fixedly connected to the top of the base plate 1. Infrared temperature probes 62 are fixedly connected to the left and right sides of the top of the detection bracket 61 to detect the heat change on the surface of the brake disc 21 during braking. Laser range sensors 63 are fixedly connected to the left and right sides of the top of the detection bracket 61 to detect the thickness change of the brake disc 21. The detection bracket 61 is located at the bottom of the brake disc 21. The infrared temperature probes 62 and the laser range sensors 63 face the outer surface of the brake disc 21. The infrared temperature probes 62 and the laser range sensors 63 are electrically connected to external monitoring equipment. A lateral simulation auxiliary component 7 is provided on the top of the base plate 1. The lateral simulation auxiliary component 7 includes a fixing frame 71 fixedly connected to the top of the base plate 1. The fixing frame 71 is located on the back of the clutch lever assembly 3. A vent box 72 is fixedly connected to the front of the fixing frame 71. The vent box 72 includes a box body 721 fixedly connected to the front of the fixing frame 71. There is a through hole on the left and right sides of the box body 721 near the top and bottom, respectively. The through hole on the left side of the box body 721 communicates with an external air pump device. The top of the inner wall of the box body 721 is... Both the bottom and the bottom of the vent box 721 are slidably connected to a flow regulating slider 722. The bottom of the flow regulating slider 722 located at the bottom of the inner wall of the box 721 is slidably connected to the bottom of the inner wall of the box 721 by a spring. The flow regulating slider 722 has a through hole on its front side, which communicates with the through hole of the box 721. The vent box 72 is rotatably connected to a speed regulating shaft 73. The speed regulating shaft 73 includes a drive gear 731 rotatably connected to the left side of the fixed frame 71. The outer surface of the drive gear 731 is connected to the outer surface of the fixed ring 331 through teeth. The drive gear 731 is meshed with each other, and a shaft 732 is fixedly connected to the right side of the drive gear 731. A centrifugal pusher 733 is slidably connected to the outer surface of the shaft 732 radially via a spring. The shaft 732 is located inside the housing 721, and the centrifugal pusher 733 is located at the bottom of the flow regulating slider 722. A cam is fixedly connected to the right side of the shaft 732. A lateral airflow rod 74 is provided on the right side of the fixing frame 71. The lateral airflow rod 74 includes a blowing swing rod 741 rotatably connected to the right side of the fixing frame 71. The blowing swing rod 741 has a hollow internal structure. 41 has a counterweight rod connected to the back. The top of the counterweight rod of the air blowing arm 741 is connected to the through hole near the top on the right side of the housing 721 through a flexible tube. The right side of the air blowing arm 741 is connected to a horizontal nozzle 742. The horizontal nozzle 742 faces the right side of the mounting base 11 and is directly opposite the outer side of the outer surface of the brake disc 21. The through hole near the bottom on the right side of the housing 721 is connected to an inner nozzle 743 through a rigid tube. A nozzle is provided on the right side of the inner nozzle 743 and is directly opposite the inner side of the outer surface of the brake disc 21. The number of simulation auxiliary components 7 is two, and they are symmetrically distributed on the top of the base plate 1.

[0024] In use, the brake disc 21 is installed and fixed to the outer surface of the connecting sleeve 12, and then the connecting sleeve 12 is put back into the mounting base 11 so that the connecting sleeve 12 and the outer surface of the biting rod 311 mesh with each other. Then, the caliper 2 and the brake oil chamber 22 are installed. After installation, the drive motor 34 is started. The drive motor 34 drives the drive frame 321 to rotate. The drive frame 321 drives the clutch rod 31 to rotate. The clutch rod 31 drives the connecting sleeve 12 to rotate. The connecting sleeve 12 drives the brake disc 21 to rotate. By draining oil into the brake oil chamber 22, the brake oil chamber 22 drives the caliper 2 to clamp the brake disc 21. At this time, the infrared temperature probe 62 and the laser range sensor 63 respectively detect the temperature data and thickness data of the brake disc 21. The monitoring data is transmitted back to the monitoring equipment in real time for further analysis, thereby analyzing the thermal fading and wear of the brake disc 21. In real cornering braking, the inner wheel locks up before the outer wheel, and is subjected to lateral force at the same time. To simulate this situation, the cylinder 441 drives the rotary joint 44 to slide to one side, the rotary joint 44 drives the slide plate 41 to slide, and the slide plate 41 drives the engagement rod 311 to slide. This allows one side of the brake disc 21 to maintain power output while the other side is disengaged from power output. On the side maintaining power output, the contact slip ring 313 and the engagement rod 311 slide relative to each other. On the side disengaged from power output, the contact slip ring 313 and the engagement rod 311 slide together until the engagement rod 311 contacts the secondary pressure plate 335, thereby pushing the secondary pressure plate 335 to disengage from the main pressure plate 334, thus disconnecting the power output. At the same time, the force rod 45 contacts the outer surface of the caliper 2 and applies force to simulate the lateral force on the end where the power output is disconnected. During the test, the external blower exhausts air to the brake disc 21 through the flexible air pipe 52 to simulate the airflow changes outside the brake disc 21 during driving and braking. The nozzle 533 sprays water onto the brake disc 21 to simulate the environment of rain or watery road sections. During the test, the drive gear 731 rotates under the drive of the fixed ring 331. The rotation of the drive gear 731 drives the shaft 732 to rotate, and the rotation of the shaft 732 generates centrifugal force. The centrifugal force throws out the centrifugal push block 733, which slides outward and pushes the flow regulating slider 722 to slide. The flow regulating slider 722 slides inside the housing 721, thereby reducing the obstruction of the through hole of the housing 721 by the flow regulating slider 722 and increasing the airflow per unit time. The airflow enters the lateral airflow rod 74 from the housing 721. Part of it enters the lateral nozzle 742 from the blowing swing rod 741 and then blows towards the outer surface of the brake disc 21, simulating the lateral wind encountered by the brake disc 21 during vehicle operation. The other part enters the inner nozzle 743 from the housing 721 and is finally blown towards the outer surface of the brake disc 21. The inner side of the surface is used to simulate the airflow that blows onto the inner side of the outer surface of the brake disc 21 during vehicle travel. At the same time, during the simulation, the shaft 732 drives the cam to rotate, and the cam periodically pushes the air blowing lever 741 backward, so that the air blowing lever 741 swings at a certain angle, further improving the realism of the airflow simulation. It can also promote the lateral dispersion of the water flow sprayed from the nozzle 533. Since the brake disc 21 is clamped at a high speed during the braking test, some wear debris will remain on the outer surface of the brake disc 21. These debris will affect the detection component 6's monitoring of the wear degree of the brake disc 21. Therefore, the airflow discharged from the lateral nozzle 742 and the inner nozzle 743 will also help clean the debris on the outer surface of the brake disc 21. When simulating a wheel lock-up situation, the lateral simulation auxiliary component 7 at the end disconnected from the power output will descend as the rotational speed of the fixed ring 331 engaged with it decreases, thereby reducing the centrifugal force on the axle 732 and resetting under the action of the spring. At the same time, the flow regulating slider 722 will also reset under the action of the spring and gravity, thereby reducing the gas flow rate per unit time through the housing 721, simulating the situation where the lateral airflow flowing through the end disconnected from the power output is reduced.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A test bench for simulating dynamic road conditions for testing the performance of automotive disc brakes, comprising a base plate (1), wherein a mounting seat (11) is fixedly connected to the top of the base plate (1), and a detection component (6) is provided on the top of the base plate (1), characterized in that: The mounting base (11) is rotatably connected to a connecting sleeve (12), the inner surface of the connecting sleeve (12) is provided with a protrusion, and the connecting sleeve (12) is provided with a clutch rod assembly (3). The clutch lever assembly (3) includes: The clutch lever body (31) includes a biting rod (311) that is slidably connected to the inside of the connecting sleeve (12) through a groove. The top left side of the biting rod (311) has a flat surface and a sliding groove. A positioning slide rod (312) is fixedly connected inside the sliding groove of the biting rod (311). A contact slip ring (313) is slidably connected to the outer surface of the biting rod (311). The contact slip ring (313) is slidably connected to the outer surface of the positioning slide rod (312) by a spring. The slide (32) is slidably connected to the top of the base plate (1). The slide (32) is located on the left side of the mounting base (11). The slide (32) is rotatably connected to the drive frame (321). The drive frame (321) is slidably connected to the outer surface of the biting rod (311). The clutch sleeve (33) includes a fixing ring (331) fixedly connected to the left side of the connecting sleeve (12), a connecting rod (332) fixedly connected to the left side of the fixing ring (331), and an installation plate (333) fixedly connected to the left side of the connecting rod (332).

2. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 1, characterized in that: The base plate (1) is provided with an adjusting slide rod (4) on the front side. The adjusting slide rod (4) includes a slide plate (41) slidably connected to the top of the base plate (1). A rotating seat (42) is fixedly connected to the top of the slide plate (41). The rotating seat (42) is rotatably connected to the end of the biting rod (311). A rotating joint (44) is rotatably connected to the top of the slide plate (41). A hydraulic cylinder (441) is rotatably connected to one end of the rotating joint (44). The bottom of the hydraulic cylinder (441) is fixedly connected to the top of the base plate (1). A force-applying rod (45) is fixedly connected to the back of the slide plate (41). Pressure blocks are provided on both the left and right sides of the force-applying rod (45).

3. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 2, characterized in that: An environmental simulation component (5) is provided on the back of the base plate (1). The environmental simulation component (5) includes a mounting plate (51) fixedly connected to the back of the base plate (1). A flexible air pipe (52) is connected to the back of the mounting plate (51). The other end of the flexible air pipe (52) is connected to an external blower. A spray rack (53) is provided on the back of the mounting plate (51). The spray rack (53) includes a support frame (531) fixedly connected to the top of the mounting plate (51). A hanging plate (532) is fixedly connected to the front of the support frame (531). A nozzle (533) is fixedly connected to the bottom of the hanging plate (532). The nozzle (533) is connected to an external water pump. The nozzle (533) is located on the back of the brake disc (21).

4. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 3, characterized in that: The detection component (6) includes a detection bracket (61) fixedly connected to the top of the base plate (1). Infrared temperature probes (62) are fixedly connected to the top left and right sides of the detection bracket (61). Laser range sensors (63) are fixedly connected to the top left and right sides of the detection bracket (61). The detection bracket (61) is located at the bottom of the brake disc (21). The infrared temperature probes (62) and laser range sensors (63) are both facing the outer surface of the brake disc (21).

5. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 1, characterized in that: A secondary pressure plate (335) is fixedly connected to the right side of the drive frame (321). The outer surface of the drive frame (321) is provided with teeth. A drive motor (34) is fixedly connected to the top of the slide (32). The drive motor (34) is located on one side of the drive frame (321). The drive motor (34) meshes with the outer surface of the drive frame (321) through gears.

6. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 5, characterized in that: The base plate (1) is provided with a lateral simulation auxiliary component (7) on the top. The lateral simulation auxiliary component (7) includes a fixed frame (71) fixedly connected to the top of the base plate (1). The fixed frame (71) is located on the back of the clutch rod assembly (3). The front of the fixed frame (71) is fixedly connected to a vent box (72). The vent box (72) is rotatably connected to a speed regulating shaft (73). A lateral airflow rod (74) is provided on the right side of the fixed frame (71).

7. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 6, characterized in that: The ventilation box (72) includes a box body (721) fixedly connected to the front of the fixing frame (71). The box body (721) has a through hole on each of its left and right sides near the top and bottom. The top and bottom of the inner wall of the box body (721) are slidably connected to the flow regulating slider (722). The bottom of the flow regulating slider (722) located at the bottom of the inner wall of the box body (721) is slidably connected to the bottom of the inner wall of the box body (721) by a spring. The front of the flow regulating slider (722) has a through hole, and the through hole of the flow regulating slider (722) is connected to the through hole of the box body (721).

8. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 7, characterized in that: The speed-adjusting shaft (73) includes a drive gear (731) rotatably connected to the left side of the fixed frame (71). The outer surface of the drive gear (731) meshes with the outer surface of the fixed ring (331) through teeth. The right side of the drive gear (731) is fixedly connected to a shaft body (732). The outer surface of the shaft body (732) is radially connected to a centrifugal push block (733) through a spring. The shaft body (732) is located inside the housing (721), and the centrifugal push block (733) is located at the bottom of the speed-adjusting slider (722).

9. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 8, characterized in that: A cam is fixedly connected to the right side of the shaft (732). The lateral airflow rod (74) includes a blowing swing rod (741) rotatably connected to the right side of the fixed frame (71). The blowing swing rod (741) has a hollow structure inside. A counterweight rod is connected to the back of the blowing swing rod (741). The top of the counterweight rod of the blowing swing rod (741) is connected to the through hole near the top on the right side of the box (721) through a flexible tube. A horizontal nozzle (742) is connected to the right side of the blowing swing rod (741). The horizontal nozzle (742) faces the right side of the mounting base (11). An inner nozzle (743) is connected to the through hole near the bottom on the right side of the box (721) through a rigid tube. A nozzle head is provided on the right side of the inner nozzle (743).

10. The test bench for simulating dynamic road conditions for automobile disc brake performance according to claim 1, characterized in that: The clutch lever assembly (3) consists of two parts, which are symmetrically distributed on the top of the base plate (1).

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