A high temperature compression and thermal fatigue life testing device for clutch plates

Abstract

This invention discloses a high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates, belonging to the field of friction plate testing technology. The device includes a main body with a support leg fixedly mounted on the outer side of its bottom. A first fixing frame is fixedly mounted on the inner side of the support leg at the bottom of the main body, and a motor mount is fixedly connected to the first fixing frame. This high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates features a scientifically designed and highly integrated overall structure. It effectively solves the technical pain points of existing testing devices, such as limited functionality, low testing accuracy, cumbersome operation, and insufficient intelligence. It can simultaneously and accurately test the high-temperature compressive strength and thermal fatigue life of clutch friction plates, comprehensively improving testing efficiency and the accuracy and reliability of test data. It provides strong technical support for the quality inspection and performance optimization of clutch friction plates, and has significant practical value and promising application prospects.

Description

Technical Field

[0001] This invention relates to the field of friction plate testing technology, and more specifically, to a high-temperature pressure resistance and thermal fatigue life testing device for clutch friction plates. Background Technology

[0002] Clutch friction plates are core components in power transmission systems of automobiles, construction machinery, and other applications. Their performance directly determines the stability, safety, and reliability of power transmission. High-temperature compressive strength and thermal fatigue life are key indicators for evaluating the quality of clutch friction plates. During clutch operation, the friction plates frequently come into contact with the flywheel, generating a large amount of heat and enduring axial pressure. Prolonged exposure to complex high-temperature and high-pressure conditions can easily lead to wear, deformation, cracking, and even failure, affecting the normal operation of the entire power transmission system and potentially causing safety accidents. Therefore, accurate testing of the high-temperature compressive strength and thermal fatigue life of clutch friction plates is crucial.

[0003] Currently, most existing clutch friction plate testing devices suffer from limited functionality, either only capable of high-temperature pressure resistance testing or thermal fatigue life testing. They cannot simultaneously test both core indicators, leading to low testing efficiency and data that fails to comprehensively reflect the friction plate's overall performance under actual operating conditions. Furthermore, the fixing mechanisms of existing testing devices are not stable enough, allowing the friction plate to loosen or shift during testing, affecting accuracy. The adjustment mechanisms lack flexibility, failing to precisely control the contact and pressure between the friction plate and the testing component. Moreover, they lack intelligent control and data acquisition and analysis systems, making parameter adjustments cumbersome. Data recording, analysis, and report generation require manual intervention, increasing operator workload and increasing the risk of data errors, thus failing to meet the demands of large-scale, precise testing. Summary of the Invention

[0004] The purpose of this invention is to provide a high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates, so as to solve the problems mentioned in the background art.

[0005] A high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates includes a main body. A support leg is fixedly mounted on the outer side of the bottom of the main body. A first fixing frame is fixedly mounted on the inner side of the support leg at the bottom of the main body, and a motor base is fixedly connected to the first fixing frame. A rotating mechanism is mounted on the top of the motor base at the bottom of the main body. A test box is fixedly mounted on the top of the main body. Slide rails are fixedly mounted on both sides of the test box at the top of the main body. A fixing seat is fixedly mounted on the top of each slide rail, and a telescopic cylinder is fixedly connected to each fixing seat. Telescopic rods are fixedly connected to the bottom output ends of each of the two telescopic cylinders, and the two telescopic rods rotate vertically. The sliding frame is installed inside the two slide rails and slides vertically between them. The two sides of the sliding frame are threaded to the outer sides of the two telescopic rods. A fixing mechanism is installed at the bottom of the sliding frame directly above the test chamber, and a friction plate body is fixedly connected to the fixing mechanism. The bottom of the friction plate body is tightly fitted to the top of the rotating mechanism and located inside the test chamber. An adjustment mechanism is installed inside the test chamber on the outer side of the friction plate body. A drive mechanism is installed on the top of the device body on one side of the test chamber, and the drive mechanism drives the adjustment mechanism. A telescopic rod is fixedly installed on one side of one of the slide rails, and an intelligent control test system is installed inside the telescopic rod.

[0006] Preferably, the fixing mechanism includes a second fixing frame fixedly disposed at the bottom of the sliding frame. A driven shaft is rotatably connected to the bottom of the sliding frame through the second fixing frame. A second speed measuring module is fixedly disposed inside the second fixing frame. The second speed measuring module is movably sleeved on the outside of the driven shaft for monitoring the rotational speed of the driven shaft. Four fixing screws are threadedly connected to the bottom of the driven shaft, and a fixing plate is fixedly connected to it through the four fixing screws. Teeth are provided on the top of the fixing plate on the outside of the driven shaft. The friction plate body is fixedly sleeved on the outside of the driven shaft and located on the top of the fixing plate, engaging with the teeth on the outside. A return spring is fixedly disposed on the top of the fixing screws below the friction plate body. The return spring is sleeved on the outside of the teeth. A pressure plate mechanism is sleeved on the top of the friction plate body on the outside of the driven shaft.

[0007] Preferably, the pressure plate mechanism includes a diaphragm spring that is slidably sleeved on the outside of the driven shaft. The diaphragm spring has an arc-shaped cross-section. A pressing surface is arranged around the bottom outer side of the diaphragm spring. The pressing surface is in close contact with the top outer side of the friction plate body. Multiple curved grooves are evenly opened on the top circumference of the diaphragm spring. A second sliding block is fixedly arranged on the top of the diaphragm spring. The second sliding block is movably sleeved on the outside of the driven shaft. A pressing mechanism is arranged on the top of the second sliding block.

[0008] Preferably, the extrusion mechanism includes an extrusion plate rotatably disposed on the top of the second sliding block. The top cross-section of the extrusion plate is arc-shaped. The extrusion plate is movably sleeved on the outside of the driven shaft. Multiple friction balls are evenly rotatably disposed on the bottom of the extrusion plate around the top circumference of the second sliding block. An arc-shaped groove is formed below the friction balls on the top of the second sliding block. Connecting blocks are fixedly disposed on both sides of the friction balls on the bottom of the extrusion plate. Connecting grooves are formed at the connection points of the arc-shaped grooves on the top of the second sliding block. The connecting blocks are slidably connected inside the connecting grooves.

[0009] Preferably, the rotating mechanism includes a detection motor fixedly mounted on the top of a motor base, a drive shaft fixedly connected to the top output end of the detection motor, a reinforcing plate fixedly mounted inside the first fixing frame on the top of the detection motor, a first speed measuring module fixedly mounted on the top of the reinforcing plate, the reinforcing plate and the first speed measuring module being movably sleeved on the outside of the drive shaft, the first speed measuring module being used to detect the rotational speed of the drive shaft, and a detection flywheel fixedly mounted on the top of the drive shaft, the detection flywheel being rotatably mounted on the bottom of the device body and located at the bottom of the friction plate body.

[0010] Preferably, the adjustment mechanism includes two drive discs rotatably disposed above and below the inside of the test chamber. Four first sliding blocks are circumferentially and evenly slidably disposed between the two drive discs inside the test chamber. All four first sliding blocks slide vertically toward the extrusion plate and are evenly arranged around the outside of the extrusion plate. An adjustment block is fixedly disposed on one side of each of the four first sliding blocks. The bottom of each of the four adjustment blocks has a first arc surface, which is in close contact with the top of the extrusion plate. This first arc surface controls the vertical position of the extrusion plate outside the driven shaft as the first sliding blocks slide and contact the extrusion plate. It also compresses the diaphragm spring to press the friction pad body against the detection flywheel, controlling the contact and separation between the friction pad body and the detection flywheel, as well as the tightness of the contact.

[0011] Preferably, the four first sliding blocks are aligned as a group. The two driving disks have two driving grooves respectively opened at the top and bottom of the two groups of first sliding blocks. A sliding rod is fixedly provided on one side of the bottom of one group of first sliding blocks, and a sliding rod is also fixedly provided on one side of the bottom of the other group of first sliding blocks. The four sliding rods are slidably disposed in the driving grooves. The four driving grooves are inclined and the inclination direction is the same for both pairs. They are used to drive the first sliding blocks to slide by rotating the two driving disks. A rotating rod is rotatably connected to one side of each of the two driving disks outside the test box, and both are connected to the driving mechanism through the rotating rod.

[0012] Preferably, the driving mechanism includes a drive motor fixedly mounted on one side of the top of the device body, a first pulley fixedly sleeved at the output end of the drive motor, three rotating seats fixedly mounted on the top of the device body on one side of the drive motor, a drive screw rotatably mounted between the three rotating seats, a threaded cylinder fixedly mounted on one side of each of the two rotating screws, threads being formed at both ends of the outer side of the drive screw, the two threads rotating in opposite directions, the two threaded cylinders being threadedly connected to the outer side of the two threads respectively, a second pulley fixedly sleeved on one side of the drive screw, and a belt fixedly sleeved between the second pulley and the first pulley.

[0013] Preferably, the intelligent control testing system includes an embedded controller, which is fixedly embedded inside the telescopic rod. The embedded controller is electrically connected to the first speed measuring module, the second speed measuring module, the drive motor, the detection motor, and the telescopic cylinder, respectively. It is used to receive the drive shaft speed data transmitted by the first speed measuring module and the driven shaft speed data transmitted by the second speed measuring module in real time. At the same time, it can output pulse control signals to realize the start and stop, speed adjustment and steering control of the drive motor and the detection motor. It can also control the extension and retraction stroke of the telescopic cylinder, thereby accurately adjusting the lifting height of the sliding frame and controlling the initial contact state between the friction plate body and the detection flywheel.

[0014] Preferably, the intelligent control testing system further includes a data acquisition unit, a parameter setting unit, an alarm unit, and a data storage unit. The data acquisition unit is electrically connected to the embedded controller and is used to acquire real-time temperature data, contact pressure data between the friction pad body and the test flywheel, and test duration data inside the test chamber, and convert the acquired analog signals into digital signals for transmission to the embedded controller. The parameter setting unit is used to preset test temperature thresholds, pressure thresholds, speed thresholds, and test cycles. The embedded controller compares and analyzes the real-time acquired data with the preset parameters and automatically adjusts the operating status of the adjustment mechanism, rotation mechanism, and telescopic cylinder. The alarm unit automatically issues an audible and visual alarm when the real-time data exceeds the preset threshold or when the equipment malfunctions. The data storage unit is used to store all test data and equipment operating parameters, supports data export, and can automatically generate test reports on the high-temperature compressive strength and thermal fatigue life of the friction pad body in conjunction with the embedded controller.

[0015] Compared with the prior art, the advantages of this invention are: This high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates features a scientifically designed and highly integrated overall structure. It effectively addresses the technical pain points of existing testing devices, such as limited functionality, low testing accuracy, cumbersome operation, and insufficient intelligence. It enables simultaneous and accurate testing of the high-temperature compressive strength and thermal fatigue life of clutch friction plates, comprehensively improving testing efficiency and the accuracy and reliability of test data. This provides strong technical support for the quality inspection and performance optimization of clutch friction plates, demonstrating significant practical value and promising prospects for wider application.

[0016] This device achieves secure fixation of the friction pad body through an optimized fixing mechanism, effectively preventing problems such as loosening or displacement of the friction pad during testing and ensuring testing accuracy. The teeth on the outer side of the driven shaft in the fixing mechanism mesh with the friction pad body, and together with the limiting fixation of the fixing plate and fixing screws, precise positioning of the friction pad is achieved. Simultaneously, the return spring provides a buffering effect on the friction pad, reducing mechanical damage during installation and testing. The cooperation of the diaphragm spring and pressure plate mechanism further enhances the fixing stability of the friction pad. Furthermore, the arc-shaped structure and compression surface design of the diaphragm spring ensure uniform force distribution on the top of the friction pad, preventing excessive localized force that could lead to deformation. This ensures that the friction pad remains in a stable testing state throughout the test, providing a foundation for accurate test data.

[0017] The coordinated operation of the adjustment mechanism and the drive mechanism enables precise adjustment of the contact degree and pressure between the friction plate and the detection flywheel. This allows for the simulation of different stress states of the friction plate under actual working conditions, improving the realism and comprehensiveness of the test. The drive mechanism drives the drive screw to rotate via a drive motor. The threaded engagement between the threaded cylinder and the drive screw drives two drive discs to rotate synchronously in opposite directions. The inclined drive grooves on the drive discs drive the first sliding block to slide along the inside of the test chamber via a slide rod. This, in turn, controls the pressure of the diaphragm spring on the friction plate through the pressure plate mechanism of the first arc surface of the adjustment block. This allows for precise adjustment of the tightness of the contact between the friction plate and the detection flywheel, flexibly simulating the stress conditions of the friction plate under different working conditions and meeting the testing requirements of friction plates of different specifications and applications.

[0018] The intelligent control testing system significantly enhances the device's intelligence and ease of operation, reduces manual intervention, and improves testing efficiency and data processing accuracy. The embedded controller, as the core control unit, receives real-time speed data from the first and second speed measurement modules, while precisely controlling the operation of the drive motor, detection motor, and telescopic cylinder, enabling automated adjustment of test parameters. The data acquisition unit comprehensively collects key data such as temperature, pressure, and test duration during the testing process, and completes signal conversion and transmission. The parameter setting unit allows operators to preset test thresholds and cycles. The alarm unit promptly alerts users to equipment malfunctions and parameter anomalies. The data storage unit enables the retention and export of test data and the automatic generation of test reports, comprehensively improving the convenience and professionalism of the testing work.

[0019] The device boasts a stable overall structure, convenient operation, and excellent versatility and expandability, adapting to the testing needs of clutch friction plates of various specifications while facilitating maintenance and upgrades. The support legs ensure the stability of the main body, preventing shaking during testing. The cooperation between the slide rail and the sliding frame allows for smooth lifting and lowering, precisely adjusting the initial position of the friction plates. The scientifically designed connections between the various mechanisms facilitate the disassembly, replacement, and maintenance of components. Different specifications of fixing mechanisms, testing flywheels, and other parts can be replaced according to actual testing needs, expanding the device's applicability and meeting the batch testing requirements of clutch friction plates in large-scale production, thus reducing testing costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a cross-sectional view of the overall structure of the present invention; Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle; Figure 4 This is a schematic diagram of the test box structure of the present invention; Figure 5 This is a schematic diagram of the drive disk structure of the present invention; Figure 6 This is a schematic diagram of the first sliding block structure of the present invention; Figure 7 This is a schematic diagram of the first fixing frame structure of the present invention; Figure 8 This is a schematic diagram of the extrusion mechanism of the present invention; Figure 9 This is a cross-sectional schematic diagram of the extrusion mechanism structure of the present invention; Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point B; Figure 11 This is a schematic diagram of the extrusion plate structure of the present invention; Figure 12 This is a schematic diagram of the diaphragm spring structure of the present invention.

[0021] Explanation of the numbers in the diagram: 1. Main body of the device; 10. Support leg; 11. Slide rail; 12. Fixed base; 13. Telescopic cylinder; 14. Telescopic rod; 15. Touch control screen; 2. First fixed frame; 20. Motor base; 21. Detection motor; 22. Drive shaft; 23. Reinforcing plate; 24. First speed measuring module; 25. Detection flywheel; 3. Drive motor; 30. First pulley; 31. Belt; 32. Second pulley; 33. Rotating base; 34. Drive screw; 4. Test box; 40. Drive disc; 41. Rotating rod 42. Threaded cylinder; 43. Drive groove; 44. Slide rod; 45. First sliding block; 46. Adjusting block; 47. First arc surface; 5. Sliding frame; 50. Second fixed frame; 51. Driven shaft; 52. Second speed measuring module; 53. Fixed plate; 54. Fixed screw; 55. Return spring; 6. Friction plate body; 60. Diaphragm spring; 61. Extrusion plate; 62. Bending groove; 63. Extrusion surface; 64. Second sliding block; 65. Friction ball; 66. Connecting block; 67. Arc slide groove; 68. Connecting groove. Detailed Implementation

[0022] Example: Please refer to Figures 1-12 A high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates includes a main body 1. A support leg 10 is fixedly mounted on the outer side of the bottom of the main body 1. A first fixing frame 2 is fixedly mounted on the inner side of the support leg 10 at the bottom of the main body 1, and a motor base 20 is fixedly connected to the first fixing frame 2. A rotating mechanism is provided on the top of the motor base 20 at the bottom of the main body 1. A test box 4 is fixedly mounted on the top of the main body 1. Slide rails 11 are fixedly mounted on both sides of the test box 4 at the top of the main body 1. Fixing seats 12 are fixedly mounted on the top of each slide rail 11, and telescopic cylinders 13 are fixedly connected to each of the two slide rails 11. Telescopic rods 14 are fixedly connected to the bottom output ends of each of the two telescopic cylinders 13. Telescopic rods 14 are vertically rotatably mounted inside two slide rails 11. A sliding frame 5 is slidably mounted between the two slide rails 11. The two sides of the sliding frame 5 are threadedly connected to the outside of the two telescopic rods 14. A fixing mechanism is set at the bottom of the sliding frame 5 directly above the test box 4, and a friction plate body 6 is fixedly connected to the fixing mechanism. The bottom of the friction plate body 6 is tightly attached to the top of the rotating mechanism and is located inside the test box 4. An adjustment mechanism is set inside the test box 4 on the outside of the friction plate body 6. A drive mechanism is set on the top of the device body 1 on one side of the test box 4. The drive mechanism is used to drive the adjustment mechanism. A telescopic rod 14 is fixedly mounted on one side of one of the slide rails 11. An intelligent control test system is set inside the telescopic rod 14. In use, the friction plate body 6 is first fixed by the fixing mechanism. The intelligent control test system controls the telescopic cylinder 13 to start, which drives the telescopic rod 14 to rotate, thereby driving the sliding frame 5 to slide up and down along the slide rail 11 to adjust the height of the friction plate body 6, so that the bottom of the friction plate body 6 is in close contact with the top of the rotating mechanism. Then, the rotating mechanism is started to drive the friction plate body 6 to rotate. At the same time, the driving mechanism drives the adjusting mechanism to adjust the contact pressure between the friction plate body 6 and the rotating mechanism, simulating high temperature working conditions to complete the test. The intelligent control test system collects and analyzes the test data in real time. Through this structural design, the high temperature compressive strength and thermal fatigue life of the friction plate are tested simultaneously. The overall structure is stable, and the various mechanisms work smoothly together, providing structural support for the orderly conduct of the test and effectively improving the test efficiency and comprehensiveness.

[0023] Specifically, the fixing mechanism includes a second fixing frame 50 fixedly installed at the bottom of the sliding frame 5. A driven shaft 51 is rotatably connected to the bottom of the sliding frame 5 via the second fixing frame 50. A second speed measuring module 52 is fixedly installed inside the second fixing frame 50. The second speed measuring module 52 is movably sleeved on the outside of the driven shaft 51 and is used to monitor the rotational speed of the driven shaft 51. Four fixing screws 54 are threadedly connected to the bottom of the driven shaft 51, and a fixing plate 53 is fixedly connected to it via the four fixing screws 54. Teeth are provided on the top of the fixing plate 53 on the outside of the driven shaft 51. The friction plate body 6 is fixedly sleeved on the outside of the driven shaft 51 and is located on the top of the fixing plate 53 and is engaged with the teeth on the outside of the teeth. A return spring 55 is fixedly installed on the top of the fixing screws 54 below the friction plate body 6. The return spring 55 is sleeved on the outside of the teeth. A pressure plate mechanism is sleeved on the top of the friction plate body 6 on the outside of the driven shaft 51. In use, the friction plate body 6 is fitted onto the outside of the driven shaft 51, making it mesh with the teeth. Tightening the fixing screw 54 causes the fixing plate 53 to rise. With the elastic force of the return spring 55, the friction plate body 6 is initially fixed. Then, the pressure plate mechanism further presses and fixes it. The second speed measuring module 52 monitors the rotation speed of the driven shaft 51 in real time and transmits it to the intelligent control test system. Through this fixing mechanism, the friction plate body 6 is accurately positioned and firmly fixed. The meshing of the teeth can prevent the friction plate body 6 from slipping when rotating. The return spring 55 plays a buffering and protective role to avoid damage to the friction plate body 6. The second speed measuring module 52 can provide real-time feedback on the rotation status of the friction plate body 6, providing support for the accurate analysis of test data. At the same time, it facilitates the disassembly and replacement of the friction plate body 6.

[0024] Specifically, the pressure plate mechanism includes a diaphragm spring 60 that is slidably sleeved on the outside of the driven shaft 51. The cross-section of the diaphragm spring 60 is arc-shaped. A pressing surface 63 is arranged around the bottom outer side of the diaphragm spring 60. The pressing surface 63 is tightly attached to the top outer side of the friction plate body 6. Multiple curved grooves 62 are evenly opened on the top circumference of the diaphragm spring 60. A second sliding block 64 is fixedly arranged on the top of the diaphragm spring 60. The second sliding block 64 is movably sleeved on the outside of the driven shaft 51. A pressing mechanism is arranged on the top of the second sliding block 64. In use, the extrusion mechanism presses down on the second sliding block 64, causing the diaphragm spring 60 to slide downward along the driven shaft 51. The diaphragm spring 60 applies a uniform extrusion force to the outer top of the friction plate body 6 through the extrusion surface 63 at the bottom. The bending groove 62 enhances the elastic deformation capability of the diaphragm spring 60, allowing the extrusion force to be flexibly adjusted. Through this pressure plate mechanism, the fixing stability of the friction plate body 6 can be further improved. The arc-shaped cross-section of the diaphragm spring 60 and the surrounding extrusion surface 63 can ensure that the top of the friction plate body 6 is subjected to uniform force, avoiding excessive local force that could cause deformation of the friction plate body 6. The setting of the bending groove 62 enhances the toughness of the diaphragm spring 60, extends the service life of the pressure plate mechanism, and facilitates precise control of the extrusion force in conjunction with the adjustment mechanism.

[0025] Specifically, the extrusion mechanism includes an extrusion plate 61 rotatably mounted on the top of the second sliding block 64. The top cross-section of the extrusion plate 61 is arc-shaped. The extrusion plate 61 is movably sleeved on the outside of the driven shaft 51. Multiple friction balls 65 are evenly rotatably mounted on the bottom of the extrusion plate 61 around the top of the second sliding block 64. An arc-shaped groove 67 is opened on the top of the second sliding block 64 below the friction balls 65. Connecting blocks 66 are fixedly mounted on both sides of the friction balls 65 on the bottom of the extrusion plate 61. Connecting grooves 68 are opened on the top of the second sliding block 64 at the arc-shaped groove 67. The connecting blocks 66 are slidably connected inside the connecting grooves 68. In use, the adjusting mechanism presses the top of the pressing plate 61, causing the pressing plate 61 to move downwards and drive the second sliding block 64 to slide down. The friction ball 65 rolls inside the arc-shaped groove 67, and the connecting block 66 slides along the connecting groove 68, ensuring the smooth movement of the pressing plate 61. At the same time, the pressing plate 61 can rotate slightly relative to the second sliding block 64 to adapt to the pressing angle of the adjusting mechanism. Through this pressing mechanism, the pressing force of the adjusting mechanism can be smoothly transmitted to the diaphragm spring 60. The setting of the friction ball 65 reduces the friction between the pressing plate 61 and the second sliding block 64, making the pressing process smoother. The cooperation between the connecting block 66 and the connecting groove 68 ensures the accuracy of the movement of the pressing plate 61 and avoids deviation. The arc-shaped top section facilitates the fit with the adjusting block of the adjusting mechanism, improving the flexibility and accuracy of the adjustment.

[0026] Specifically, the rotating mechanism includes a detection motor 21 fixedly mounted on the top of the motor base 20, a drive shaft 22 fixedly connected to the top output end of the detection motor 21, a reinforcing plate 23 fixedly mounted on the top of the detection motor 21 inside the first fixing frame 2, a first speed measuring module 24 fixedly mounted on the top of the reinforcing plate 23, both the reinforcing plate 23 and the first speed measuring module 24 being movably sleeved on the outside of the drive shaft 22, the first speed measuring module 24 being used to detect the rotational speed of the drive shaft 22, a detection flywheel 25 fixedly mounted on the top of the drive shaft 22, the detection flywheel 25 being rotatably mounted on the bottom of the device body 1 and located at the bottom of the friction plate body 6; During use, the intelligent control testing system starts the detection motor 21, which drives the drive shaft 22 to rotate. The drive shaft 22 drives the detection flywheel 25 to rotate. The detection flywheel 25 is in close contact with the bottom of the friction plate body 6, causing the friction plate body 6 to rotate synchronously. The first speed measurement module 24 detects the rotation speed of the drive shaft 22 in real time and transmits it to the intelligent control testing system. The reinforcing plate 23 provides support and reinforcement for the drive shaft 22. Through this rotation mechanism, the rotation condition of the friction plate when the clutch is working can be simulated. The contact rotation between the detection flywheel 25 and the friction plate body 6 can generate frictional heat, providing a working condition simulation for thermal fatigue life testing. The first speed measurement module 24 can accurately feed back the rotation speed, which is convenient for the intelligent control testing system to adjust the test parameters. The reinforcing plate 23 enhances the stability of the rotation of the drive shaft 22 and avoids shaking that affects the test accuracy.

[0027] Specifically, the adjustment mechanism includes two drive discs 40 rotatably disposed inside the test chamber 4. Inside the test chamber 4, four first sliding blocks 45 are evenly slidably disposed circumferentially between the two drive discs 40. The four first sliding blocks 45 slide vertically toward the extrusion plate 61 and are evenly disposed around the outside of the extrusion plate 61. An adjustment block 46 is fixedly disposed on one side of each of the four first sliding blocks 45. The bottom of each of the four adjustment blocks 46 is provided with a first arc surface 47, and the first arc surface 47 is in close contact with the top of the extrusion plate 61. This is used to control the up and down position of the extrusion plate 61 outside the driven shaft 51 as the first sliding blocks 45 slide and contact the extrusion plate 61. It also presses the diaphragm spring 60 to press the friction plate body 6 to fit with the detection flywheel 25, thereby controlling the contact and distance between the friction plate body 6 and the detection flywheel 25 and the tightness of the fit. In use, the drive mechanism drives two drive discs 40 to rotate, causing four first sliding blocks 45 to slide along the inside of the test chamber 4 towards the extrusion plate 61. The adjustment block 46 presses the top of the extrusion plate 61 through the first arc surface 47, causing the extrusion plate 61 to move downwards, pressing the diaphragm spring 60 to press the friction plate body 6, increasing the contact pressure between the friction plate body 6 and the detection flywheel 25. Conversely, the drive discs 40 rotate in the opposite direction, the first sliding blocks 45 slide outwards, and the extrusion pressure decreases, realizing the separation or contact degree adjustment between the friction plate body 6 and the detection flywheel 25. Through this adjustment mechanism, the contact pressure and contact state between the friction plate body 6 and the detection flywheel 25 can be precisely controlled. The design of the first arc surface 47 makes the contact between the adjustment block 46 and the extrusion plate 61 smoother. The even distribution of the four first sliding blocks 45 can make the extrusion plate 61 uniformly stressed, ensuring a smooth adjustment process, thereby simulating the pressure state of the friction plate under different working conditions and improving the comprehensiveness of the test.

[0028] Specifically, the four first sliding blocks 45 are aligned as a group. The two drive disks 40 have two drive grooves 43 respectively opened at the top and bottom of the two groups of first sliding blocks 45. A sliding rod 44 is fixedly installed on one side of the bottom of one group of first sliding blocks 45, and a sliding rod 44 is also fixedly installed on one side of the bottom of the other group of first sliding blocks 45. The four sliding rods 44 are slidably installed in the drive grooves 43. The four drive grooves 43 are inclined and the inclination direction is the same for both pairs. They are used to drive the first sliding blocks 45 to slide by rotating the two drive disks 40. A rotating rod 41 is rotatably connected to one side of the two drive disks 40 outside the test box 4, and both are connected to the drive mechanism through the rotating rod 41. In use, the drive mechanism drives two drive discs 40 to rotate synchronously via the rotating rod 41. When the drive discs 40 rotate, the inclined drive grooves 43 generate a horizontal driving force on the first sliding blocks 45 through the sliding rod 44. Since the four drive grooves 43 are inclined in the same direction in pairs, the two sets of first sliding blocks 45 can slide synchronously inward or outward, thereby driving the adjusting block 46 to synchronously press or move away from the pressing plate 61. Through this structural design, the synchronous sliding of the four first sliding blocks 45 is achieved, ensuring that the pressing force of the adjusting block 46 on the pressing plate 61 is uniform and consistent, avoiding excessive local pressing. The cooperation between the inclined drive grooves 43 and the sliding rod 44 makes the sliding process smoother and reduces mechanical wear. The setting of the rotating rod 41 facilitates the connection between the drive mechanism and the drive discs 40, ensuring stable power transmission.

[0029] Specifically, the drive mechanism includes a drive motor 3 fixedly mounted on one side of the top of the device body 1. A first pulley 30 is fixedly sleeved on the output end of the drive motor 3. Three rotating seats 33 are fixedly mounted on the top of the device body 1 on one side of the drive motor 3. A drive screw 34 is rotatably mounted between the three rotating seats 33. Threaded cylinders 42 are fixedly mounted on one side of each of the two rotating rods 41. Threads are opened at both ends of the outer side of the drive screw 34. The two threads rotate in opposite directions. The two threaded cylinders 42 are threadedly connected to the outer side of the two threads respectively. A second pulley 32 is fixedly sleeved on one side of the drive screw 34. A belt 31 is fixedly sleeved between the second pulley 32 and the first pulley 30. In use, the intelligent control testing system starts the drive motor 3, which drives the first pulley 30 to rotate. The first pulley 30 drives the second pulley 32 to rotate via the belt 31, which in turn drives the drive screw 34 to rotate between the rotating seats 33. Since the threads at both ends of the drive screw 34 turn in opposite directions, the two threaded cylinders 42 move synchronously in opposite directions along the drive screw 34, driving the two rotating rods 41 to rotate synchronously in opposite directions, which in turn drives the two drive discs 40 to rotate synchronously. Through this drive mechanism, the synchronous reverse rotation of the drive discs 40 is achieved. The power transmission is stable and efficient. The threaded connection can precisely control the rotation angle of the rotating rods 41, thereby precisely adjusting the sliding distance of the first sliding block 45. The belt drive has the function of buffering and shock absorption, reducing the impact of mechanical vibration on the test accuracy. The rotating seats 33 support and fix the drive screw 34, enhancing the stability of the drive mechanism.

[0030] Specifically, the intelligent control testing system includes an embedded controller, which is fixedly embedded inside the telescopic rod 14. The embedded controller is electrically connected to the first speed measuring module 24, the second speed measuring module 52, the drive motor 3, the detection motor 21, and the telescopic cylinder 13. It is used to receive the speed data of the drive shaft 22 transmitted by the first speed measuring module 24 and the speed data of the driven shaft 51 transmitted by the second speed measuring module 52 in real time. At the same time, it can output pulse control signals to realize the start and stop, speed adjustment and steering control of the drive motor 3 and the detection motor 21. It can also control the extension and retraction stroke of the telescopic cylinder 13, thereby accurately adjusting the lifting height of the sliding frame 5 and controlling the initial contact state between the friction plate body 6 and the detection flywheel 25. In use, the embedded controller, as the core control unit, receives the rotational speed data from the first speed measuring module 24 and the second speed measuring module 52 in real time, analyzes the data in real time, and outputs control signals according to preset test parameters to control the start, stop, speed and direction of the drive motor 3 and the detection motor 21, control the extension and retraction stroke of the telescopic cylinder 13, and adjust the lifting height of the sliding frame 5 to ensure that the friction plate body 6 and the detection flywheel 25 are in a suitable initial contact state. Through this intelligent control test system, the test process is automated, reducing manual intervention, improving test efficiency, and accurately adjusting the operating parameters of each mechanism to ensure the accuracy of test data. The embedded controller is installed inside the telescopic rod 14, saving device space and facilitating wiring and equipment maintenance.

[0031] Specifically, the intelligent control testing system also includes a data acquisition unit, a parameter setting unit, an alarm unit, and a data storage unit. The data acquisition unit is electrically connected to the embedded controller and is used to acquire real-time temperature data inside the test chamber 4, contact pressure data between the friction plate body 6 and the detection flywheel 25, and test duration data. It converts the acquired analog signals into digital signals and transmits them to the embedded controller. The parameter setting unit is used to preset the test temperature threshold, pressure threshold, speed threshold, and test cycle. The embedded controller compares and analyzes the real-time acquired data with the preset parameters and automatically adjusts the operating status of the adjustment mechanism, rotation mechanism, and telescopic cylinder 13. The alarm unit automatically issues an audible and visual alarm when the real-time data exceeds the preset threshold or when the equipment malfunctions. The data storage unit is used to store all test data and equipment operating parameters, supports data export, and can automatically generate test reports on the high-temperature compressive strength and thermal fatigue life of the friction plate body 6 in conjunction with the embedded controller. During use, the data acquisition unit comprehensively collects key data such as temperature, pressure, and test duration during the testing process, converts analog signals to digital signals, and transmits them to the embedded controller. Operators preset test parameters through the parameter setting unit. The embedded controller compares real-time data with preset parameters and automatically adjusts the operating status of each mechanism. When data is abnormal or equipment malfunctions, the alarm unit issues audible and visual alerts. The data storage unit retains test data and supports export, automatically generating test reports. This structure further enhances the intelligence and professionalism of the device, providing comprehensive and accurate data acquisition, a high degree of automation in parameter adjustment, and alarm functions to promptly detect test anomalies and prevent test accidents. The data storage and report generation functions facilitate the retention, analysis, and traceability of test data, providing complete data support for the quality evaluation of friction plates.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates, comprising a main body (1), characterized in that: The device body (1) has a support leg (10) fixedly installed on the outer side of its bottom. The device body (1) has a first fixing frame (2) fixedly installed on the inner side of the support leg (10) at its bottom. A motor base (20) is fixedly connected to the first fixing frame (2). A rotating mechanism is installed on the top of the motor base (20) at the bottom of the device body (1). A test box (4) is fixedly installed on the top of the device body (1). Slide rails (11) are fixedly installed on both sides of the test box (4) at the top of the device body (1). A fixing seat (12) is fixedly installed on the top of each slide rail (11). A telescopic cylinder (13) is fixedly connected to each of the two slide rails (12). A telescopic rod (14) is fixedly connected to the bottom output end of each of the two telescopic cylinders (13). The two telescopic rods (14) are respectively vertically rotated on the two slide rails (13). Inside the slide rail (11), a sliding frame (5) is slidably arranged between the two slide rails (11). The two sides of the sliding frame (5) are threaded to the outside of the two telescopic rods (14). The bottom of the sliding frame (5) is provided with a fixing mechanism directly above the test box (4), and a friction plate body (6) is fixedly connected to the fixing mechanism. The bottom of the friction plate body (6) is tightly attached to the top of the rotating mechanism and is located inside the test box (4). An adjustment mechanism is provided inside the test box (4) on the outside of the friction plate body (6). The top of the device body (1) is provided with a driving mechanism on one side of the test box (4). The driving mechanism is used to drive the adjustment mechanism. A telescopic rod (14) is fixedly arranged on one side of one of the slide rails (11). An intelligent control test system is provided inside the telescopic rod (14).

2. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 1, characterized in that: The fixing mechanism includes a second fixing frame (50) fixedly installed at the bottom of the sliding frame (5). A driven shaft (51) is rotatably connected to the bottom of the sliding frame (5) through the second fixing frame (50). A second speed measuring module (52) is fixedly installed inside the second fixing frame (50). The second speed measuring module (52) is movably sleeved on the outside of the driven shaft (51) for monitoring the rotational speed of the driven shaft (51). Four fixing screws (54) are threadedly connected to the bottom of the driven shaft (51), and the four fixing screws (54) are used to... A fixed plate (53) is fixedly connected. The driven shaft (51) is provided with teeth on the top of the fixed plate (53) on the outside. The friction plate body (6) is fixedly sleeved on the outside of the driven shaft (51) and located on the top of the fixed plate (53) and engaged with the teeth on the outside. A return spring (55) is fixedly provided on the top of the fixed screw (54) below the friction plate body (6). The return spring (55) is sleeved on the outside of the teeth. A pressure plate mechanism is sleeved on the top of the friction plate body (6) on the outside of the driven shaft (51).

3. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 2, characterized in that: The pressure plate mechanism includes a diaphragm spring (60) that is slidably sleeved on the outside of the driven shaft (51). The cross-section of the diaphragm spring (60) is arc-shaped. A pressing surface (63) is arranged around the bottom outer side of the diaphragm spring (60). The pressing surface (63) is tightly attached to the top outer side of the friction plate body (6). A plurality of curved grooves (62) are evenly opened on the top circumference of the diaphragm spring (60). A second sliding block (64) is fixedly arranged on the top of the diaphragm spring (60). The second sliding block (64) is movably sleeved on the outside of the driven shaft (51). A pressing mechanism is arranged on the top of the second sliding block (64).

4. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 3, characterized in that: The extrusion mechanism includes an extrusion plate (61) rotatably disposed on the top of the second sliding block (64). The top cross section of the extrusion plate (61) is arc-shaped. The extrusion plate (61) is movably sleeved on the outside of the driven shaft (51). Multiple friction balls (65) are evenly rotatably disposed on the bottom of the extrusion plate (61) around the top circumference of the second sliding block (64). An arc groove (67) is opened on the top of the second sliding block (64) below the friction balls (65). Connecting blocks (66) are fixedly disposed on both sides of the extrusion plate (61) on both sides of the friction balls (65). Connecting grooves (68) are opened on the top of the second sliding block (64) at the arc grooves (67). The connecting blocks (66) are slidably connected inside the connecting grooves (68).

5. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 4, characterized in that: The rotating mechanism includes a detection motor (21) fixedly mounted on the top of a motor base (20), a drive shaft (22) fixedly connected to the top output end of the detection motor (21), a reinforcing plate (23) fixedly mounted on the top of the detection motor (21) inside the first fixing frame (2), a first speed measuring module (24) fixedly mounted on the top of the reinforcing plate (23), the reinforcing plate (23) and the first speed measuring module (24) are both movably sleeved on the outside of the drive shaft (22), the first speed measuring module (24) is used to detect the rotational speed of the drive shaft (22), a detection flywheel (25) is fixedly mounted on the top of the drive shaft (22), the detection flywheel (25) is rotatably mounted on the bottom of the device body (1) and located at the bottom of the friction plate body (6).

6. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 5, characterized in that: The adjustment mechanism includes two drive discs (40) rotatably disposed inside the test chamber (4), one above the other. Four first sliding blocks (45) are evenly slidably disposed circumferentially between the two drive discs (40) inside the test chamber (4). All four first sliding blocks (45) slide vertically toward the extrusion plate (61) and are evenly arranged around the outside of the extrusion plate (61). An adjustment block (46) is fixedly disposed on one side of each of the four first sliding blocks (45). Each of the four adjustment blocks (46) has a bottom edge... It has a first arc surface (47) and is in close contact with the top of the extrusion plate (61) through the first arc surface (47). It is used to control the upper and lower position of the extrusion plate (61) outside the driven shaft (51) as the first sliding block (45) slides and contacts the extrusion plate (61), and to press the diaphragm spring (60) to press the friction pad body (6) to fit with the detection flywheel (25), thereby controlling the contact and distance between the friction pad body (6) and the detection flywheel (25) and the tightness of the fit.

7. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 6, characterized in that: The four first sliding blocks (45) are aligned as a group. The two driving disks (40) have two driving grooves (43) respectively on the top and bottom of the two groups of first sliding blocks (45). A sliding rod (44) is fixedly provided on one side of the bottom of one group of first sliding blocks (45), and a sliding rod (44) is also fixedly provided on one side of the bottom of the other group of first sliding blocks (45). The four sliding rods (44) are slidably disposed inside the driving grooves (43). The four driving grooves (43) are inclined and the inclination direction is the same for both of them. They are used to drive the first sliding blocks (45) to slide by rotating the two driving disks (40). A rotating rod (41) is rotatably connected to one side of the two driving disks (40) outside the test box (4), and both are connected to the driving mechanism through the rotating rod (41).

8. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 7, characterized in that: The driving mechanism includes a drive motor (3) fixedly mounted on one side of the top of the device body (1). The output end of the drive motor (3) is fixedly fitted with a first pulley (30). The top of the device body (1) is fixedly fitted with three rotating seats (33) on one side of the drive motor (3). A drive screw (34) is rotatably mounted between the three rotating seats (33). A threaded cylinder (42) is fixedly mounted on one side of each of the two rotating rods (41). The two outer ends of the drive screw (34) are threaded, and the two threads are rotated in opposite directions. The two threaded cylinders (42) are respectively threaded to the outer sides of the two threads. A second pulley (32) is fixedly mounted on one side of the drive screw (34). A belt (31) is fixedly mounted between the second pulley (32) and the first pulley (30).

9. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 8, characterized in that: The intelligent control test system includes an embedded controller, which is fixedly embedded inside the telescopic rod (14). The embedded controller is electrically connected to the first speed measuring module (24), the second speed measuring module (52), the drive motor (3), the detection motor (21), and the telescopic cylinder (13) respectively. It is used to receive the speed data of the drive shaft (22) transmitted by the first speed measuring module (24) and the speed data of the driven shaft (51) transmitted by the second speed measuring module (52) in real time. At the same time, it can output pulse control signals to realize the start and stop, speed adjustment and steering control of the drive motor (3) and the detection motor (21). It can also control the extension and retraction stroke of the telescopic cylinder (13) to accurately adjust the lifting height of the sliding frame (5) and control the initial contact state between the friction plate body (6) and the detection flywheel (25).

10. The high-temperature compressive strength and thermal fatigue life testing device for clutch friction plates according to claim 9, characterized in that: The intelligent control test system also includes a data acquisition unit, a parameter setting unit, an alarm unit and a data storage unit. The data acquisition unit is electrically connected to the embedded controller and is used to collect real-time temperature data inside the test box (4), contact pressure data between the friction plate body (6) and the detection flywheel (25) and test duration data, and convert the collected analog signals into digital signals and transmit them to the embedded controller. The parameter setting unit is used to preset the test temperature threshold, pressure threshold, speed threshold and test cycle. The embedded controller will collect data in real time and compare and analyze it with the preset parameters, and automatically adjust the operating status of the adjustment mechanism, rotation mechanism and telescopic cylinder (13). The alarm unit will automatically issue an audible and visual alarm when the real-time data exceeds the preset threshold or the equipment malfunctions. The data storage unit is used to store all test data and equipment operating parameters, supports data export, and can automatically generate a test report on the high temperature compressive strength and thermal fatigue life of the friction plate body (6) in conjunction with the embedded controller.

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