A clutch durability test device

Abstract

The application relates to the field of clutch testing, in particular to a clutch endurance testing device, which comprises a device shell, one side of the device shell is provided with a driving shaft, the other side is provided with a detection shaft, a detection box is fixedly installed on the device shell, the driving shaft and the detection shaft both extend into the detection box, one end of the driving shaft and the detection shaft adjacent to each other is provided with a mounting disc, the mounting disc is respectively provided with a friction plate and a clutch plate. The centrifugal force generated by the operation of the testing device can push the limiting block and the connected temperature sensor to move upwards, so that when each temperature sensor is pushed out, the temperature sensor can abut against the corresponding friction plate, the data detected by the temperature sensor is transmitted to the temperature measuring module in the corresponding area for centralized processing, the centralized processing of the temperature measuring module can effectively and intuitively understand the overall temperature condition of the clutch and the temperature difference generated in different areas, and the data precision during the detection of the clutch is ensured.

Description

Technical Field

[0001] This invention relates to the field of clutch testing, specifically to a clutch durability testing device. Background Technology

[0002] The clutch is a core component in automotive and mechanical transmission systems, used to disconnect power transmission between the engine and gearbox, ensuring smooth starting, shifting, and stopping of the vehicle. When power transmission is needed, the pedal is depressed, and the pressure plate, via a diaphragm spring, presses the friction plates tightly against the flywheel. Engine torque is then transmitted to the gearbox through the friction plates. The strength of the friction between the flywheel and the friction plates directly affects the effective transmission of engine power to the gearbox. Therefore, a testing device is needed to test the clutch's durability, determining how long it takes for slippage to occur. It's important to note that clutch testing requires not only measuring torque but also monitoring temperature during long-term operation to assess the impact of temperature rise on clutch operation. However, the limited space at the connection between the clutch friction plates and the flywheel means that most manufacturers, including those using the aforementioned equipment, rely on infrared sensors for remote monitoring. While these sensors can detect the overall temperature of the friction plates, their remote nature prevents real-time temperature monitoring at different locations on the clutch friction plates, affecting the accuracy of the test data.

[0003] Therefore, a clutch durability testing device is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a clutch durability testing device to solve the problem of detailed clutch testing, while also addressing the issue of the inability to effectively detect the real-time temperature at different locations on the clutch friction plate, which affects the accuracy of data during clutch testing.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A clutch durability testing device includes a housing, a drive shaft on one side of the housing, and a detection shaft on the other side. A detection box is fixedly mounted on the housing. Both the drive shaft and the detection shaft extend into the detection box. A mounting plate is mounted on an adjacent end of each of the drive shaft and the detection shaft. Friction plates and clutch plates are respectively mounted on the mounting plates. The detection plate is fixedly mounted on the mounting plate on the drive shaft. Multiple temperature measuring modules are installed inside the detection plate. Each temperature measuring module is connected to multiple temperature sensors via cables. The number of temperature sensors is the same as the number of friction plates. Multiple evenly spaced sliding holes are formed on the side wall of the detection plate. Each temperature sensor is disposed within a sliding hole. A limiting block, made of metal, is fixedly mounted at one end of each temperature sensor and slides within the sliding hole.

[0007] The testing device tests the clutch's durability by increasing its rotational speed and torque, observing how long it takes for slippage to occur. It examines the relationship between the surface temperature and friction force of the friction plates and clutch discs, observing the impact of temperature increases on the clutch. The testing disc is installed in the center of the clutch under test. When the device is activated, the centrifugal force generated by the rotation pushes the limit block and the connected temperature sensor upwards, out of the sliding hole, and against the friction plate to be tested. The limit block, made of metal, effectively pushes the temperature sensor into contact with the metal being tested. Since the number of temperature sensors matches the number of friction plates, each sensor pushes against its corresponding friction plate. Simultaneously, the temperature sensors transmit the detected data to the corresponding temperature measurement module for centralized processing. This centralized processing provides an effective and intuitive understanding of the overall clutch temperature and temperature differences between different areas, enabling the testing equipment to quickly and accurately test the clutch and ensuring data accuracy during clutch testing.

[0008] Preferably, the detection plate has an annular groove, and multiple limiting posts are fixedly installed in the annular groove. The side of the limiting post away from the connection point is frustum-shaped, and the inside of the limiting post is hollow. A sliding disk is slidably connected in the annular groove. The sliding disk has a circular hole for the limiting posts to pass through. The cross-section of the sliding disk is concave. The detection plate has multiple elongated grooves communicating with the annular groove. A sliding rod is fixedly installed in the elongated groove. A pushing block sleeved on the sliding rod is slidably connected in the elongated groove. A first compression spring sleeved on the sliding rod abuts between the pushing block and the inner wall of the elongated groove. A rolling groove is formed on one side of the pushing block. A ball is slidably connected in the rolling groove. The ball rolls on the sliding disk. The same number of temperature sensors are installed at one end of the detection plate and connected to the corresponding temperature measurement module.

[0009] As the detection disc rotates at increasing speed for testing, the centrifugal force generated by the rotation pushes the push block to move outwards from the detection disc, compressing a compression spring on one side. The moving push block drives the rollers mounted on it to move, causing the balls to move to the back of the sliding disc. At this time, because the sliding disc is mounted in the annular groove by a limiting post, the sliding disc can only move back and forth. The cross-section of the sliding disc is concave, so when the balls move upwards, they push one side of the sliding disc out, causing the temperature sensor mounted on the sliding disc to press against the clutch plate on one side. Of course, when the detection disc needs to stop testing and reduce its speed, the centrifugal force generated by the rotation cannot overcome the squeezing force generated by the first compression spring on one side, causing the first compression spring to push the push block back to its original position. This prevents the push block from failing to return to its original position due to gravity, which would prevent the sliding disc from retracting into the annular groove. Through the coordinated use of the sliding disc and its multiple temperature sensors, the detection device can accurately detect the clutch, ensuring the accuracy of the data during clutch testing.

[0010] Preferably, a limiting ring is fixedly installed on the temperature sensor, and a protective bucket is fitted on the end of the temperature sensor away from the limiting block. The small opening of the protective bucket is positioned facing the limiting ring, and a second compression spring fitted on the temperature sensor is abutted between the protective bucket and the limiting ring.

[0011] When the sensor is ejected from the sliding hole due to centrifugal force generated by the high-speed rotation of the detection disc, the temperature sensor will collide rapidly with the friction plate on the side. Prolonged collisions will damage the temperature sensor and affect the detection results. Therefore, the temperature sensor needs to be protected to prevent it from malfunctioning due to collisions. Specifically, when the temperature sensor is about to collide with the friction plate, the protective cup will contact the friction plate first and be buffered by the second compression spring sleeved on the temperature sensor to avoid damage to the temperature sensor caused by the collision and ensure the accuracy of the data during clutch detection.

[0012] Preferably, the detection disc has an annular groove, and a rotating ring is rotatably connected in the annular groove. Multiple heat insulation plates are provided on one side of the rotating ring, and the multiple heat insulation plates are distributed in a fan shape. A rubber ring is fixedly installed between the heat insulation plate and the rotating ring. Adjacent heat insulation plates are connected by a rubber sheet. The heat insulation plate includes a middle layer and outer layers on both sides. The middle layer is made of calcium silicate board, and the outer layers are made of aluminum foil composite material.

[0013] It is important to note that because the friction plate and clutch plate are closely fitted together, their temperatures can interfere with each other during temperature measurement, affecting the accuracy of the test. Therefore, to reduce the interference, it is necessary to insulate the test points of the two parts during testing. This is achieved using a thermal insulation board. When in use, the thermal insulation board will expand outwards under the action of centrifugal force, pressing against the connection between the friction plate and clutch plate. Of course, thanks to the rubber sheet and rubber ring, the thermal insulation board will hold together and will not fall apart. The middle layer of the thermal insulation board is made of calcium silicate board, which has strong high temperature resistance and fire resistance. At the same time, its outer layer is wrapped with aluminum foil composite material, which can effectively isolate the temperature and prevent the friction plate and clutch plate from interfering with each other during testing, thus ensuring the accuracy of the clutch test data.

[0014] Preferably, the temperature sensor includes a housing and internal sensors, wherein the internal sensors are a thermocouple sensor and a platinum resistance sensor, and the thermocouple sensor and the platinum resistance sensor are placed offset from each other in two adjacent housings.

[0015] Because real-time monitoring of the clutch friction plates is required, the accuracy and response speed of the temperature sensor are critical. However, most sensors are not compatible with both, so thermocouple sensors and platinum resistance sensors are used. Thermocouple sensors are based on the Seebeck effect, where the temperature difference between the junctions of two different metals generates a voltage signal. Therefore, thermocouple sensors have an extremely fast response speed, reaching millisecond levels, but their accuracy is relatively low, typically with an error of ±1 to 2℃. Although the fast response speed allows for quick acquisition of internal clutch temperature data, there is still some error. Platinum resistance sensors, on the other hand, rely on the linear change in resistance of platinum resistance with temperature, resulting in high accuracy, typically around ±0.1℃. However, their response speed is very slow, affecting real-time monitoring data. By placing the two sensors separately, the data generated by both can be analyzed together to ensure the accuracy of the monitoring data.

[0016] Preferably, the drive shaft has a hollow structure, with a cable running through it. A storage device is installed at the end of the drive shaft away from the detection plate, and the antenna of the storage device extends to the outside of the drive shaft. One end of the cable is connected to the storage device, and the other end of the cable is connected to the temperature measurement module.

[0017] Because the testing equipment is installed in the middle of the clutch disc, a cable is needed to transmit the test data to a computer in real time for further analysis. However, the testing disc rotates continuously, and transmitting data via cable would break the connecting cable. Therefore, wireless transmission equipment is required for data transmission. However, transmitting data inside the clutch is problematic because the metal enclosure creates a shielding layer, which severely affects transmission efficiency and data integrity. To ensure data transmission, the transmission antenna is extended to the outside of the equipment. At the same time, a storage device is used to store the data to prevent incomplete data from affecting the use of the testing equipment and to ensure the accuracy of the data during clutch testing.

[0018] Preferably, a magnet is installed inside the sliding circular hole. A short groove is formed on the inner wall of the sliding circular hole, and the magnet is fixedly installed in the short groove. The thickness of the magnet is less than the overall depth of the short groove. The magnet restricts the limiting block, preventing the bottom limiting block from constantly pressing against the clutch friction plate due to gravity when the detection equipment is changing the clutch plate or stopping. During actual operation, the detection disc will slowly reduce its running speed due to the drive device. Insufficient speed will reduce the centrifugal force, causing the limiting block to return to its original position and be attracted by the magnet again due to gravity. Of course, if the rotation speed of the detection disc continues to increase, the centrifugal force will overcome the attraction force generated by the magnet, causing the sensor to be pushed out again, allowing the sensor to continue to press against the friction plate for detection, ensuring the data accuracy during clutch detection.

[0019] Preferably, a retaining ring is fixedly installed on the other side of the push block, and the cables connected to the temperature sensor are all installed on the retaining ring. By installing the cable on the retaining ring, when the cable needs to be discharged with the sensor, the push block will move outward due to gravity, causing the cable to be stretched. When the detection is stopped, the push block will return to its original position and drive the cable back to its original position, avoiding the cable from affecting the movement of the sensor, avoiding wear on the sensor cable, and indirectly ensuring the overall service life of the equipment.

[0020] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0021] 1. The centrifugal force generated by the operation of the testing device will push the limit block and the connected temperature sensor upward, so that when each temperature sensor is pushed out, it can resist the corresponding friction plate. The temperature sensor transmits the detected data to the temperature measurement module of the corresponding area for centralized processing. Through the centralized processing of the temperature measurement module, the overall temperature of the clutch and the temperature difference generated in different areas can be effectively and intuitively understood, ensuring the data accuracy during clutch testing.

[0022] 2. Temperature isolation is achieved through the insulation plate. During use, the insulation plate will expand outwards under the action of centrifugal force, pressing against the connection between the friction plate and the clutch plate. This prevents the friction plate and the clutch plate from sticking together, which would cause the temperatures generated by the two to interfere with each other when measuring their temperatures, thus affecting the detection accuracy and indirectly ensuring the data accuracy during clutch testing.

[0023] 3. Thermocouple sensors have an extremely fast response speed, reaching the millisecond level, but their accuracy is relatively low and the error is usually large. Platinum resistance sensors, on the other hand, have high accuracy because the resistance of platinum changes linearly with temperature, but their response speed is very slow, affecting real-time detection data. By placing the two sensors separately, the data generated by both can be combined and sent to the corresponding temperature measurement module for centralized processing and analysis, enabling real-time high-precision measurement of the friction pad to ensure the accuracy of the detection data. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 2 This is a schematic diagram of the internal structure of the detection box in this invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of the detection disk in this invention;

[0027] Figure 4 for Figure 3 Enlarged structural diagram at point A;

[0028] Figure 5 This is a schematic diagram of the annular groove in the present invention;

[0029] Figure 6 for Figure 5 Enlarged structural diagram at point B;

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the long groove in this invention.

[0031] In the diagram: 1. Device housing; 2. Drive shaft; 3. Detection shaft; 4. Detection box; 5. Mounting plate; 6. Friction plate; 7. Clutch plate; 8. Detection plate; 9. Circular groove; 10. Sliding plate; 11. Protective bucket; 12. Temperature sensor; 13. Limiting ring; 14. Second compression spring; 15. Sliding circular hole; 16. Limiting block; 17. Magnet; 18. Temperature measuring module; 19. Limiting post; 20. Long groove; 21. Pushing block; 22. Sliding rod; 23. First compression spring; 24. Ball bearing; 25. Snap ring; 26. Storage device; 27. Cable; 28. Insulation plate; 29. ​​Short groove; 30. Rotating ring; 31. Rubber sheet; 32. Rubber ring. Detailed Implementation

[0032] Please see Figures 1 to 7 This invention provides a clutch durability testing device, the technical solution of which is as follows:

[0033] A clutch durability testing device, please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 The device includes a housing 1, a drive shaft 2 on one side and a detection shaft 3 on the other side, and a detection box 4 fixedly mounted on the housing 1. Both the drive shaft 2 and the detection shaft 3 extend into the detection box 4. The device is characterized in that a mounting plate 5 is mounted on one adjacent end of the drive shaft 2 and the detection shaft 3, and friction plates 6 and clutch plates 7 are respectively mounted on the mounting plate 5. A detection plate 8 is fixedly mounted on the mounting plate 5 on the drive shaft 2. Multiple temperature measuring modules 18 are installed inside the detection plate 8. Each temperature measuring module 18 is connected to multiple temperature sensors 12 via cables 27. The number of temperature sensors 12 is the same as the number of friction plates 6. Multiple evenly arranged sliding circular holes 15 are opened on the side wall of the detection plate 8. The temperature sensors 12 are all located inside the sliding circular holes 15. A magnet 17 is installed inside the sliding circular holes 15. A short groove 29 is opened on the inner wall of the sliding circular holes 15. The magnet 17 is fixedly installed in the short groove 29, and the thickness of the magnet 17 is less than the overall depth of the short groove 29. A limiting block 16, made of metal, is fixedly installed at one end of the temperature sensor 12 and slides within the sliding circular hole 15.

[0034] Please see Figure 5 , Figure 6 and Figure 7 The detection disc 8 has an annular groove 9, and multiple limiting posts 19 are fixedly installed in the annular groove 9. The side of the limiting post 19 away from the connection point is frustum-shaped, and the inside of the limiting post 19 is hollow. A sliding disc 10 is slidably connected in the annular groove 9. The sliding disc 10 has a circular hole for the limiting post 19 to pass through. The cross-section of the sliding disc 10 is concave. The detection disc 8 has multiple elongated grooves 20 that communicate with the annular groove 9. A sliding rod 22 is fixedly installed in the elongated groove 20. A sliding rod 22 is slidably connected in the elongated groove 20 and sleeved on the sliding rod 22. A push block 21 on rod 22 is connected to the inner wall of long groove 20 by a first compression spring 23 sleeved on sliding rod 22. A rolling groove is opened on one side of push block 21, and a ball bearing 24 is rolled in the rolling groove. The ball bearing 24 rolls on sliding disk 10. Multiple temperature sensors 12 of the same number are installed at one end of detection disk 8 and connected to the corresponding temperature measurement module 18. A retaining ring 25 is fixedly installed on the other side of push block 21. The cables 27 connected to the temperature sensors 12 are all installed on retaining ring 25.

[0035] Please see Figure 3 and Figure 4A limit ring 13 is fixedly installed on the temperature sensor 12. A protective bucket 11 is sleeved on the end of the temperature sensor 12 away from the limit block 16. The small opening of the protective bucket 11 is set on the side facing the limit ring 13. A second compression spring 14 sleeved on the temperature sensor 12 abuts between the protective bucket 11 and the limit ring 13.

[0036] Please see Figure 2 and Figure 7 The detection plate 8 has an annular groove, and a rotating ring 30 is rotatably connected in the annular groove. Multiple heat insulation plates 28 are provided on one side of the rotating ring 30. The multiple heat insulation plates 28 are distributed in a fan shape. A rubber ring 32 is fixedly installed between the heat insulation plate 28 and the rotating ring 30. Adjacent heat insulation plates 28 are connected by a rubber sheet 31. The heat insulation plate 28 includes a middle layer and outer layers on both sides. The middle layer is made of calcium silicate board, and the outer layer is made of aluminum foil composite material.

[0037] Please see Figure 1 and Figure 4 The temperature sensor 12 includes a housing and internal sensors. The internal sensors are a thermocouple sensor and a platinum resistance sensor, which are placed staggered in two adjacent housings.

[0038] Please see Figure 1 and Figure 3 The drive shaft 2 has a hollow structure, and a cable 27 runs through the inside of the drive shaft 2. A storage device 26 is installed at the end of the drive shaft 2 away from the detection plate 8, and the antenna of the storage device 26 extends to the outside of the drive shaft 2. One end of the cable 27 is connected to the storage device 26, and the other end of the cable 27 is connected to the temperature measurement module 18.

[0039] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4In practical use, the clutch to be tested is installed on the testing equipment, and the testing disc 8 is installed in the middle position of the clutch to be tested. The testing device is started, and the testing device tests the durability of the clutch by increasing the rotation speed and torque to see how long it takes for slippage to occur. The relationship between the surface temperature and friction force of the friction plate 6 and the clutch plate 7 is tested to see the effect of temperature increase on the clutch. At this time, the centrifugal force generated by rotation will push the limit block 16 and the connected temperature sensor 12 upward, move them out of the sliding circular hole 15, and abut against the friction plate 6 to be tested on one side. Of course, the limit block 16 is made of metal material, which can more effectively push the temperature sensor 12 to abut against the metal to be tested. Of course, since the number of temperature sensors 12 is the same as the number of friction plates 6, each temperature sensor 12 can abut against the corresponding friction plate 6 when it is pushed out. At the same time, the temperature sensor 12 transmits the detected data to the temperature measurement module 18 of the corresponding area for centralized processing. Through the centralized processing of the temperature measurement module 18, the overall temperature of the clutch can be effectively and intuitively understood.

[0040] Please see Figure 2 and Figure 4 Real-time monitoring of the clutch friction plate 6 requires a certain level of accuracy and response speed from the temperature sensor 12. Since most sensors are not compatible with both, a thermocouple sensor and a platinum resistance thermometer are used. Thermocouple sensors, based on the Seebeck effect, generate a voltage signal from the temperature difference between two different metal junctions, resulting in extremely fast response times, typically within milliseconds. However, their accuracy is relatively low, with an error usually around ±1 to 2℃. While the fast response allows for quick acquisition of internal clutch temperature data, it still has some margin of error. Platinum resistance thermometers, on the other hand, utilize the linear change in resistance with temperature, resulting in high accuracy, typically around ±0.1℃. However, their slow response time affects real-time data acquisition. By staggering the placement of both sensors, the data generated by both can be combined for analysis.

[0041] Please see Figure 5 , Figure 6 and Figure 7 When the detection disk 8 pushes the temperature sensor 12 against the friction plate 6 to continuously increase the rotation speed for detection, the centrifugal force generated by the rotation will push the push block 21 to move outward of the detection disk 8 and squeeze the compression spring on one side. The moving push block 21 drives the roller installed on it to move, so that the ball 24 moves to the back of the sliding disk 10. At this time, because the sliding disk 10 is installed in the annular groove 9 through the limiting post 19, the sliding disk 10 can only move back and forth. The cross section of the sliding disk 10 is concave, so when the ball 24 moves upward, it will push the sliding disk 10 on one side to move out, and make the temperature sensor 12 installed on the sliding disk 10 against the clutch plate 7 on one side.

[0042] Please refer to the figure. Figure 3 and Figure 4 When the sensor is ejected from the sliding hole 15 due to the centrifugal force generated by the high-speed rotation of the detection disk 8, the temperature sensor 12 will collide rapidly with the friction plate 6 on the side. Prolonged collision will damage the temperature sensor 12 and affect the detection results. Therefore, the temperature sensor 12 needs to be protected to prevent it from malfunctioning due to the collision. When the temperature sensor 12 is about to collide with the friction plate 6, the protective bucket 11 will contact the friction plate 6 first and buffer it through the second compression spring 14 sleeved on the temperature sensor 12 to avoid damage to the temperature sensor 12 caused by the collision.

[0043] Please see Figure 2 and Figure 7 The friction plate 6 and the clutch plate 7 are closely attached to each other, causing their temperatures to interfere with each other when measured, affecting the accuracy of the test. Therefore, in order to reduce the interference between them, it is necessary to insulate the test points of the two parts during the test. Thus, a heat insulation plate 28 is used for temperature isolation. When in use, the heat insulation plate 28 will expand outwards under the action of centrifugal force, pressing against the connection between the friction plate 6 and the clutch plate 7. Of course, due to the action of the rubber sheet 31 and the rubber ring 32, the heat insulation plate 28 can be held together and will not fall apart. The middle layer of the heat insulation plate 28 is made of calcium silicate board, which has strong high temperature resistance and fire resistance. At the same time, its outer surface is wrapped with aluminum foil composite material, which can effectively isolate the temperature and avoid mutual temperature interference between the friction plate 6 and the clutch plate 7 during the test.

[0044] Please see Figure 1 Meanwhile, in order to ensure data transmission, the transmission antenna is extended to the outside of the device for transmission, and the storage device 26 is used to store the data to prevent incomplete data from affecting the use of the testing equipment and to ensure the accuracy of the data during clutch testing.

[0045] Please see Figure 4 and Figure 7 Of course, when the detection disk 8 needs to stop detecting and reduce its speed, the centrifugal force generated by the rotation cannot overcome the squeezing force generated by the first compression spring 23 on one side, causing the first compression spring 23 to push the push block 21 back to its original position, so as to prevent the push block 21 from failing to return to its original position due to gravity, which would prevent the sliding disk 10 from retracting into the annular groove 9. At the same time, the slow running speed of the detection disk 8 is insufficient, which reduces the centrifugal force generated, causing the limit block 16 to return to its original position due to gravity and be attracted by the magnet 17 again. Of course, if the speed of the detection disk 8 continues to increase, the centrifugal force generated will overcome the attraction force generated by the magnet 17, causing the temperature sensor 12 to be pushed out again, allowing the temperature sensor 12 to continue to press against the friction plate 6 for detection.

[0046] The specific embodiment of the present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the embodiments described above. For those skilled in the art, various changes, modifications, substitutions, and variations made to these embodiments without departing from the principles and ideas of the present invention should still fall within the protection scope of the present invention.

Claims

1. A clutch durability testing device, comprising a device housing (1), wherein a drive shaft (2) is provided on one side of the device housing (1) and a detection shaft (3) is provided on the other side, and a detection box (4) is fixedly mounted on the device housing (1), wherein both the drive shaft (2) and the detection shaft (3) extend into the detection box (4), characterized in that, The drive shaft (2) and the detection shaft (3) are each equipped with a mounting plate (5) at one of their adjacent ends. Friction plates (6) and clutch plates (7) are respectively mounted on the mounting plate (5). A detection plate (8) is fixedly mounted on the mounting plate (5) on the drive shaft (2). Multiple temperature measuring modules (18) are installed in the detection plate (8). Each temperature measuring module (18) is connected to multiple temperature sensors (12) via a cable (27). The number of temperature sensors (12) is the same as the number of friction plates (6). Multiple evenly arranged sliding round holes (15) are opened on the side wall of the detection plate (8). The temperature sensors (12) are all set in the sliding round holes (15). One end of the temperature sensor (12) is fixedly mounted with a limiting block (16) that slides in the sliding round hole (15). The limiting block (16) is made of metal material. The detection plate (8) has an annular groove (9) with multiple limiting posts (19) fixedly installed inside the annular groove (9). The side of the limiting post (19) away from the connection point is frustoconical, and the inside of the limiting post (19) is hollow. A sliding plate (10) is slidably connected inside the annular groove (9). The sliding plate (10) has a circular hole for the limiting posts (19) to pass through. The cross-section of the sliding plate (10) is concave. The detection plate (8) has multiple long grooves (20) communicating with the annular groove (9). Multiple limiting posts (19) are fixed inside the long grooves (20). A sliding rod (22) is installed, and a push block (21) sleeved on the sliding rod (22) is slidably connected in the long groove (20). A first compression spring (23) sleeved on the sliding rod (22) abuts against the inner wall of the long groove (20) between the push block (21) and the inner wall of the long groove (20). A rolling groove is opened on one side of the push block (21), and a ball (24) is slidably connected in the rolling groove. The ball (24) rolls on the sliding disk (10). The same number of temperature sensors (12) are installed at one end of the detection disk (8) and connected to the corresponding temperature measurement module (18).

2. The clutch durability testing device according to claim 1, characterized in that, A limiting ring (13) is fixedly installed on the temperature sensor (12). A protective bucket (11) is sleeved on one end of the temperature sensor (12) away from the limiting block (16). The small opening of the protective bucket (11) is set on one side facing the limiting ring (13). A second compression spring (14) sleeved on the temperature sensor (12) abuts between the protective bucket (11) and the limiting ring (13).

3. The clutch durability testing device according to claim 1, characterized in that, The detection plate (8) has an annular groove, and a rotating ring (30) is rotatably connected in the annular groove. Multiple heat insulation plates (28) are provided on one side of the rotating ring (30). The multiple heat insulation plates (28) are arranged in a fan shape. A rubber ring (32) is fixedly installed between the heat insulation plate (28) and the rotating ring (30). Adjacent heat insulation plates (28) are connected by a rubber sheet (31). The heat insulation plate (28) includes a middle layer and outer layers on both sides. The middle layer is made of calcium silicate board, and the outer layer is made of aluminum foil composite material.

4. The clutch durability testing device according to claim 2, characterized in that, The temperature sensor (12) includes an encapsulated housing and internal sensors, which are a thermocouple sensor and a platinum resistance sensor, respectively. The thermocouple sensor and the platinum resistance sensor are placed in two adjacent encapsulated housings, staggered from each other.

5. The clutch durability testing device according to claim 1, characterized in that, The drive shaft (2) is a hollow structure, and a cable (27) runs through the inside of the drive shaft (2). A storage device (26) is installed at one end of the drive shaft (2) away from the detection disk (8), and the antenna of the storage device (26) extends to the outside of the drive shaft (2). One end of the cable (27) is connected to the storage device (26), and the other end of the cable (27) is connected to the temperature measuring module (18).

6. The clutch durability testing device according to claim 1, characterized in that, A magnet (17) is installed inside the sliding circular hole (15). A short groove (29) is provided on the inner wall of the sliding circular hole (15). The magnet (17) is fixedly installed in the short groove (29), and the thickness of the magnet (17) is less than the overall depth of the short groove (29).

7. The clutch durability testing device according to claim 1, characterized in that, A retaining ring (25) is fixedly installed on the other side of the push block (21), and the cable (27) connected to the temperature sensor (12) is installed on the retaining ring (25).

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