Automatic pressure detection device and detection method for page wheel wear test

Abstract

This invention relates to the field of wear resistance testing of leaf wheels, specifically to an automatic pressure testing device and method for wear resistance testing of leaf wheels. The device includes a friction testing platform, with a set of fixed slide rails fixedly mounted on the top of the platform. An outer sliding sleeve is slidably connected to the outside of the fixed slide rails, and an extension rod is fixedly installed on the outer side of the outer sliding sleeve. Fixed blocks are fixedly installed on the left and right sides above the friction testing platform. This invention enables the automatic pressure testing device for leaf wheel wear resistance testing to integrate pressure testing and inspection capabilities. Through mechanical linkage, it achieves coordinated control of automatic pressure application and real-time detection of friction marks, solving the testing error problem caused by the separation of pressure adjustment and detection in traditional wear resistance testing. Furthermore, it ensures stable and controllable contact pressure between the friction wheel and the leaf wheel, and precise timing of detection. It also simplifies the structural complexity of the device, reduces manual intervention, and improves testing efficiency and result consistency.

Description

Technical Field

[0001] This invention relates to the field of wear resistance testing of leaf wheels, and specifically to an automatic pressure testing device and method for wear resistance testing of leaf wheels. Background Technology

[0002] Abrasive wear testing of wheel-type abrasives is a key technical means to evaluate the resistance of materials such as grinding wheels and rubber wheels to performance degradation under mechanical wear conditions. By simulating the friction, impact or abrasion process in actual working conditions, it quantifies the wear rate, friction coefficient and surface damage evolution, providing a scientific basis for material selection, process optimization and product failure analysis. Its core lies in the combination of standardized test methods and precision instruments, such as using pin-disc type, ring-piece type or rubber wheel abrasive wear tester, under controllable load, speed, temperature and lubrication conditions, by measuring parameters such as the mass volume wear of the sample, the three-dimensional morphology of the wear track, and the friction coefficient-time curve, to evaluate the wear resistance of the material.

[0003] The automatic pressure testing device for impeller wear resistance testing is an equipment that integrates automated control and precision testing. By simulating the friction and wear process under actual working conditions, it scientifically evaluates the wear resistance of materials or components. It typically consists of a sample clamping system, friction actuator, pressure control system, and data acquisition system. It can automatically adjust the pressure, record parameters such as the number of friction cycles and the amount of wear, and generate quantitative analysis curves. It is widely used in wear resistance testing of automotive tires, industrial casters, pump impellers, and other scenarios, providing key data support for product design, material selection, and quality control. It features high efficiency, accuracy, and strong repeatability.

[0004] Existing automatic pressure testing devices for wear resistance testing of blades lack integrated pressure testing and detection capabilities. This results in independent operation of the pressure application and detection processes, which is prone to pressure fluctuations and misalignment of detection timing due to human error or mechanical delay. Furthermore, it affects the accuracy and repeatability of wear resistance test results. Under long-term use, the split structure requires additional sensors and control systems, increasing equipment costs and maintenance difficulty. Moreover, the lack of a coordinated mechanism between automatic pressurization and real-time detection makes it impossible to form a closed-loop control, which is insufficient to meet the requirements of high-precision wear resistance testing.

[0005] Therefore, it is necessary to invent an automatic pressure testing device and method for testing the wear resistance of leaf wheels to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an automatic pressure testing device and method for wear resistance testing of blade wheels. By enabling this automatic pressure testing device to integrate pressure application and detection, and through mechanical linkage to achieve coordinated control of automatic pressure application and real-time detection of friction marks, the invention solves the testing error problem caused by the separation of pressure regulation and detection in traditional wear resistance testing. Furthermore, it ensures stable and controllable contact pressure between the friction wheel and the blade wheel, and precise timing of detection. It also simplifies the complexity of the device structure, reduces manual intervention, and improves testing efficiency and result consistency. This addresses the lack of integrated pressure application and detection capabilities in existing technologies, which lead to independent operation of pressure application and detection, easily causing pressure fluctuations and misaligned detection timing due to human error or mechanical delays. This also affects the accuracy and repeatability of wear resistance test results. Furthermore, the separate structure requires additional sensors and control systems for long-term use, increasing equipment cost and maintenance difficulty. Additionally, the lack of a coordinated mechanism for automatic pressurization and real-time detection prevents the formation of closed-loop control, making it difficult to meet the requirements of high-precision wear resistance testing.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an automatic pressure testing device and method for wear resistance testing of leaf wheels, comprising a friction testing platform, a set of fixed slide rails fixedly arranged above the friction testing platform, an outer sliding sleeve slidably connected to the outside of the fixed slide rails, an extension rod fixedly installed on the outside of the outer sliding sleeve, fixed blocks fixedly installed on the left and right sides above the friction testing platform, a touch switch fixedly installed on the outside of the fixed blocks, a placement frame fixedly installed above the outer sliding sleeve, a gantry frame fixedly installed above the outside of the friction testing platform, a drive box fixedly installed above the gantry frame, a servo motor fixedly installed on the outside of the drive box, a drive screw fixedly installed at the output end of the servo motor, an outer threaded sleeve rotatably connected to the outside of the drive screw, a telescopic frame fixedly installed at the bottom of the outer threaded sleeve, and an infrared scanning head fixedly installed at the bottom of the telescopic frame;

[0008] A support frame is fixedly installed on the back of the friction testing platform. An inclined pusher frame is fixedly installed inside the support frame by screws. A drive motor is fixedly installed above the inclined pusher frame. A spiral lifting rod is fixedly installed at the output end of the drive motor. A counterweight ball is pushed by the spiral lifting rod. A lower ball tube is fixedly installed outside the inclined pusher frame. A pressure cylinder is fixedly connected to the other end of the lower ball tube. A lower pressure rod is slidably connected inside the pressure cylinder.

[0009] Preferably, a front display screen is fixedly installed on the front of the friction detection platform, and the touch switch abuts against the extension rod.

[0010] Preferably, a micro motor is fixedly installed at the bottom of the placement platform, and a rotating disk is fixedly installed at the output end of the micro motor through a coupling. A fixing screw is threaded through the top of the rotating disk, and a flap wheel body is connected to the external thread of the fixing screw. A first extension platform is fixedly installed on the outer side of the placement platform, and a first rotating shaft is fixedly installed above the first extension platform.

[0011] Preferably, a reciprocating turntable is rotatably connected to the upper side of the friction detection platform, a second extension platform is fixedly installed above the reciprocating turntable, and a second rotating shaft is fixedly installed above the second extension platform.

[0012] Preferably, a reciprocating pull rod is rotatably connected to the outside of the second rotating shaft, and the other end of the reciprocating pull rod is rotatably connected to the first rotating shaft.

[0013] Preferably, the drive box and the gantry frame are integrated into one structure. The drive box has a through groove inside, and the telescopic frame passes through the through groove and is fixedly connected to the outer threaded sleeve.

[0014] Preferably, a counterweight box is fixedly installed on the outside of the inclined pusher frame, an inlet is provided on the top of the counterweight box, and a bead outlet is provided on the side of the inclined pusher frame that is in contact with the inlet and outlet of the counterweight box.

[0015] Preferably, the upper end of the pressure rod is provided with a pressure groove, a ball bearing plate is fixedly installed at the top of the pressure rod, a friction wheel is fixedly installed at the bottom of the pressure rod, a contact sensor is fixedly installed inside the friction wheel, an external wire is fixedly connected above the contact sensor, and a viewing window is provided on the outside of the pressure cylinder.

[0016] Preferably, telescopic cylinders are fixedly installed on both sides of the outer side of the pressure cylinder, and a spring telescopic rod is fixedly installed inside the telescopic cylinder. A front telescopic rod is fixedly installed at the front end of the spring telescopic rod, and a grooved helical tooth is fixedly installed at the other end of the front telescopic rod. The grooved helical tooth abuts against the lower pressure groove.

[0017] An automated pressure testing method for wear resistance testing of leaf rollers includes the automated pressure testing device for wear resistance testing of leaf rollers as described above, and the specific processing steps are as follows:

[0018] Step 1: Place the frame and drive the flap wheel to slide left and right on the friction testing platform. When it slides to the side close to the reciprocating turntable, use the extended rod to contact the touch switch to trigger the inclined push frame, so that the spiral rising rod drives the counterweight ball to rotate and rise.

[0019] Step 2: The counterweight ball slides into the pressure cylinder under gravity with the help of the spiral rising rod and is aligned with the lower pressure rod to press down, so that the friction wheel is more in contact with the surface of the flap wheel for friction testing and automatic pressure application;

[0020] Step 3: Moving the platform away from the reciprocating turntable will trigger the touch switch on the other side, simultaneously disengaging it from the friction wheel. The drive screw will then drive the infrared scanning head to move back and forth, scanning the current friction condition of the leaf wheel.

[0021] Compared with the prior art, the technical effects and advantages provided by the present invention in the above technical solution are as follows:

[0022] By utilizing the reciprocating motion of the placement platform to trigger touch switches on both sides, the platform moves the flap wheel to a position below the friction wheel. Simultaneously, the spiral ascending rod inside the inclined pusher rotates, causing the counterweight balls to rise. These counterweight balls then slide sequentially into the pressure cylinder under gravity, driving the lowering rod to descend and ensure a tighter fit between the friction wheel and the flap wheel surface, automatically applying pressure using gravity. After a period of friction, the placement platform moves in the reverse direction, triggering the touch switches and rotating the drive screw. This rotates the infrared scanning head to scan the friction marks on the current flap wheel, completing the flap wheel wear resistance test. This automatic pressure testing device for flap wheel wear resistance testing possesses integrated pressure testing and inspection capabilities. Through mechanical linkage, it achieves coordinated control of automatic pressure application and real-time friction mark detection, solving the testing error problem caused by the separation of pressure adjustment and detection in traditional wear resistance testing. Furthermore, it ensures stable and controllable contact pressure between the friction wheel and the flap wheel, precise timing of detection, simplifies the device's structural complexity, reduces manual intervention, and improves testing efficiency and result consistency. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the extension rod structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the rotating disk structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the reciprocating turntable structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the drive box structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the inclined pusher frame structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the pressure cylinder structure of the present invention;

[0031] Figure 8 This is a schematic diagram of the pressure bar structure of the present invention;

[0032] Figure 9 This is a schematic diagram of the friction wheel structure of the present invention;

[0033] Figure 10 For the present invention Figure 8 Enlarged structural diagram at point A in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Friction testing platform; 2. Front display screen; 3. Fixed slide rail; 4. Outer sliding sleeve; 5. Outer extension rod; 6. Fixing block; 7. Touch switch; 8. Placement frame; 801. Micro motor; 802. Rotary disk; 803. Fixing screw; 804. Paddle wheel body; 9. First extension platform; 10. First rotating shaft; 11. Reciprocating rotary disk; 1101. Second extension platform; 1102. Second rotating shaft; 1103. Reciprocating pull rod; 12. Gantry frame; 13. Drive box; 14. Servo motor; 15. Drive screw; 16. Outer threaded sleeve; 17. Through-hole 18. Slide rail; 19. Telescopic frame; 20. Infrared scanner head; 21. Support frame; 22. Inclined pusher frame; 23. Counterweight box; 24. Input port; 25. Bead inlet; 26. Drive motor; 27. Spiral rising rod; 28. Counterweight bead; 29. ​​Lower bead tube; 20. Pressure cylinder; 21. Lower pressure rod; 22. Lower pressure groove; 23. Bead receiving plate; 24. Telescopic cylinder; 25. Spring telescopic rod; 26. Front telescopic rod; 27. Slotted helical teeth; 38. Friction wheel; 39. Contact sensor; 30. External wiring; 31. Viewing window. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] This invention provides, for example Figure 1-10An automatic pressure testing device and method for wear resistance testing of a flap wheel is shown, comprising a friction testing platform 1, a set of fixed slide rails 3 fixedly installed on the top of the friction testing platform 1, an outer slide sleeve 4 slidably connected to the outside of the fixed slide rails 3, an extension rod 5 fixedly installed on the outside of the outer slide sleeve 4, fixed blocks 6 fixedly installed on the left and right sides above the friction testing platform 1, a touch switch 7 fixedly installed on the outside of the fixed blocks 6, a placement frame 8 fixedly installed on the top of the outer slide sleeve 4, a gantry frame 12 fixedly installed on the top of the friction testing platform 1, a drive box 13 fixedly installed on the top of the gantry frame 12, a servo motor 14 fixedly installed on the outside of the drive box 13, a drive screw 15 fixedly installed at the output end of the servo motor 14, an outer thread sleeve 16 rotatably connected to the outside of the drive screw 15, a telescopic frame 18 fixedly installed at the bottom of the outer thread sleeve 16, and an infrared scanning head 19 fixedly installed at the bottom of the telescopic frame 18.

[0038] The servo motor 14 drives the lead screw 15 to move the infrared scanning head 19. Combined with the triggering mechanism of the touch switch 7 and the sliding structure of the placement platform 8, the automation and precise positioning of friction mark detection are realized. This not only simplifies the detection process and reduces human intervention errors, but also ensures the repeatability accuracy of the detection position through the sliding connection of the fixed slide rail 3 and the outer sliding sleeve 4, thereby enhancing the reliability and repeatability of the wear resistance test results.

[0039] A support frame 20 is fixedly installed on the back of the friction testing platform 1. An inclined pusher frame 21 is fixedly installed inside the support frame 20 by screws. A drive motor 25 is fixedly installed above the inclined pusher frame 21. A spiral rising rod 2501 is fixedly installed at the output end of the drive motor 25. A counterweight ball 2502 is pushed by the spiral rising rod 2501. A lower ball tube 26 is fixedly installed on the outside of the inclined pusher frame 21. A pressure cylinder 27 is fixedly connected to the other end of the lower ball tube 26. A lower pressure rod 28 is slidably connected inside the pressure cylinder 27.

[0040] Gravity-driven pressurization is achieved through the mechanical linkage between the spiral lifting rod 2501 and the counterweight ball 2502, ensuring the stability and adjustability of pressure application, simplifying the pressure transmission path, and improving the accuracy of automatic pressurization and the compactness of the device structure.

[0041] Furthermore, in the above structure, a front display screen 2 is fixedly installed on the front of the friction testing platform 1, and the touch switch 7 and the extension rod 5 are in contact with each other.

[0042] The front display screen 2 enables real-time visualization of test data, improving ease of operation and efficiency of result analysis. Meanwhile, the contact design between the touch switch 7 and the extension rod 5 ensures accurate and reliable test triggering, reduces human error, and enhances the automation and repeatability of the test process.

[0043] Furthermore, in the above structure, a micro motor 801 is fixedly installed at the bottom of the placement platform 8, and a rotating disk 802 is fixedly installed at the output end of the micro motor 801 through a coupling. A fixing screw 803 is threaded through the upper part of the rotating disk 802, and a leaf wheel body 804 is connected to the external thread of the fixing screw 803. A first extension platform 9 is fixedly installed on the outer side of the placement platform 8, and a first rotating shaft 10 is fixedly installed above the first extension platform 9.

[0044] Furthermore, in the above structure, a reciprocating turntable 11 is rotatably connected to the upper side of the friction detection platform 1, a second extension platform 1101 is fixedly installed above the reciprocating turntable 11, and a second rotating shaft 1102 is fixedly installed above the second extension platform 1101.

[0045] Furthermore, in the above structure, a reciprocating pull rod 1103 is rotatably connected to the outside of the second rotating shaft 1102, and the other end of the reciprocating pull rod 1103 is rotatably connected to the first rotating shaft 10.

[0046] The reciprocating turntable 11 rotates to drive the placement platform 8 to move laterally. When the placement platform 8 triggers the touch switch 7, the touch switch 7 starts the drive motor 25 and simultaneously starts the micro motor 801 to drive the rotating disk 802 to realize the dual-axis drive structure of the self-rotation of the leaf wheel and the reciprocating motion of the reciprocating pull rod 1103, which ensures the multi-dimensional motion simulation of the leaf wheel in the friction test.

[0047] Furthermore, in the above structure, the drive box 13 and the gantry frame 12 are integrated into one structure. The drive box 13 has a through groove 17 inside, and the telescopic frame 18 passes through the through groove 17 and is fixedly connected to the outer threaded sleeve 16.

[0048] The integrated structure of the drive box 13 and the gantry 12 enhances the overall rigidity, and the through-slide 17 provides guidance and limit function for the telescopic frame 18, ensuring that the infrared scanning head 19 moves accurately without deviation.

[0049] Furthermore, in the above structure, a counterweight box 22 is fixedly installed on the outside of the inclined pusher 21, an inlet 23 is provided on the top of the counterweight box 22, and a bead outlet 24 is provided on the side of the inclined pusher 21 that is in contact with the inlet and outlet of the counterweight box 22.

[0050] Furthermore, in the above structure, the upper end of the pressure rod 28 is provided with a pressure groove 2801, the top of the pressure rod 28 is fixedly installed with a ball bearing plate 2802, the bottom of the pressure rod 28 is fixedly installed with a friction wheel 30, a contact sensor 31 is fixedly installed inside the friction wheel 30, an external wiring 32 is fixedly connected above the contact sensor 31, and a viewing window 33 is provided on the outside of the pressure cylinder 27.

[0051] The counterweight beads 2502 can be conveniently added and fed through the inlet 23 and outlet 24 of the counterweight box 22. This eliminates the need for operators to manually control the friction wheel 30 to descend repeatedly. Sufficient counterweight beads 2502 can be added into the counterweight box 22 at once. The automatic feeding is achieved by the unloading of the counterweight box 22 and the rising of the spiral lifting rod 2501. Combined with the bead-bearing plate 2802 of the pressing rod 28, the descent of the friction wheel 30 can be precisely controlled and monitored in real time.

[0052] Furthermore, in the above structure, telescopic cylinders 29 are fixedly installed on both sides of the outer side of the pressure cylinder 27, and spring telescopic rods 2901 are fixedly installed inside the telescopic cylinders 29. A front telescopic rod 2902 is fixedly installed at the front end of the spring telescopic rod 2901, and a grooved helical tooth 2903 is fixedly installed at the other end of the front telescopic rod 2902. The grooved helical tooth 2903 abuts against the lower pressure groove 2801.

[0053] As the pressure rod 28 descends, the pressure groove 2801 presses against the inclined surface of the groove helical tooth 2903, causing the groove helical tooth 2903 to drive the front telescopic rod 2902 to slide backward. This allows the pressure rod 28 to continue descending under gravity. By utilizing the batch feeding in the counterweight box 22, the spiral rising rod 2501 is automatically fed upward, and the pressure rod 28 is gradually lowered and automatically pressurized, thereby improving the detection efficiency.

[0054] An automated pressure testing method for wear resistance testing of leaf rollers includes the automated pressure testing device for wear resistance testing of leaf rollers as described above, and the specific processing steps are as follows:

[0055] Step 1: Place the frame 8 to drive the flap wheel to slide left and right on the friction testing platform 1. Slide it to the side close to the reciprocating turntable 11, and use the extension rod 5 to contact the touch switch 7 to trigger the inclined push frame 21, so that the spiral rising rod 2501 drives the counterweight ball 2502 to rotate and rise.

[0056] Step 2: The counterweight ball 2502 slides into the pressure cylinder 27 under the influence of gravity with the help of the spiral rising rod 2501 and is aligned with the pressing rod 28 to press down, so that the friction wheel 30 is more in contact with the surface of the flap wheel for friction testing and automatic pressure application;

[0057] Step 3: Moving the placement platform 8 away from the reciprocating turntable 11 will trigger the touch switch 7 on the other side, and at the same time disengage it from the friction wheel 30. The drive screw 15 will drive the infrared scanning head 19 to move back and forth to scan the current friction condition of the page wheel.

[0058] Working principle of this invention:

[0059] Refer to the instruction manual appendix Figure 1 - Figure 10First, remove the flap wheel to be tested for friction. Then, use the fixing screw 803 to fix the flap wheel body 804 above the rotating disk 802. Next, the first extension platform 9, the first rotating shaft 10, the reciprocating turntable 11, the second extension platform 1101, the second rotating shaft 1102, and the reciprocating pull rod 1103 constitute the turntable reciprocating motion mechanism. The rotation of the reciprocating turntable 11 drives the placement platform 8 to reciprocate left and right on the friction testing platform 1. During friction testing, the placement platform 8 needs to perform high-frequency left and right reciprocating motion. The direct rotation of the reciprocating turntable 11 driven by the motor results in lower overall wear and fewer failure points compared to the forward and reverse control of the electric push rod. This left and right displacement can trigger the touch switches 7 on both sides of the friction testing platform 1, thereby enabling the placement platform to... When the platform 8 drives the flap wheel to below the friction wheel 30, the drive motor 25 drives the spiral rising rod 2501 inside the inclined pusher 21 to rotate. Then, the counterweight box 22 can put in a sufficient amount of counterweight beads 2502 at once. Due to the inclined design of the counterweight box 22, the overlap of the inlet 23 and outlet 24 of the counterweight box 22 allows the counterweight beads 2502 to roll into the bottom of the inclined pusher 21. Driven by the spiral rising rod 2501, the counterweight beads 2502 rise against the side wall of the inclined pusher 21. This eliminates the need for manual feeding and allows for batch operation. Subsequently, the counterweight beads 2502 slide into the lower bead tube 26 and then into the pressure cylinder 27 by gravity. As they fall into the bead receiving plate 2802 at the top of the lower pressure rod 28, the counterweight beads 2502 are further processed. As the weight ball 2502 increases, the downward pressure groove 2801 presses against the inclined surface of the groove helical tooth 2903, causing the groove helical tooth 2903 to drive the front telescopic rod 2902 to slide backward, creating space so that the downward pressure rod 28 can continue to descend under gravity. This tooth-by-tooth descent drives the downward pressure rod 28 to descend, making the friction wheel 30 and the surface of the flap wheel more tightly contacted. Furthermore, the automatic pressure applied by gravity improves detection efficiency. Simultaneously, when the placement platform 8 shifts left and right, triggering the touch switch 7 near the reciprocating turntable 11, the touch switch 7 not only starts the drive motor 25 but also simultaneously starts the micro motor 801, causing the micro motor 801 to drive the rotating disk 802 to rotate, causing the upper flap wheel body 804 to rotate. This causes the friction wheel 30 and the rotating surface to... Friction wear is generated by the contact of the leaf wheel body 804, completing the friction test. After a period of friction, the placement platform 8 moves in the reverse direction, triggering the touch switch 7 on the other side. This causes the lead screw drive mechanism, consisting of the servo motor 14, drive screw 15, and outer lead sleeve 16, to drive the infrared scanning head 19 to scan the surface of the lower leaf wheel and the friction marks. The front display screen 2 provides real-time visualization of the test data, improving operational convenience and result analysis efficiency, thus completing the leaf wheel wear resistance test. This gives the automatic pressure testing device for leaf wheel wear resistance testing the capability of integrated pressure testing and inspection. Through mechanical linkage, it achieves coordinated control of automatic pressure application and real-time detection of friction marks, solving the test error problem caused by the separation of pressure adjustment and detection in traditional wear resistance testing.Furthermore, it ensures stable and controllable contact pressure between the friction wheel 30 and the flap wheel, and precise timing of the test. It also simplifies the structural complexity of the device, reduces manual intervention, and improves testing efficiency and result consistency.

[0060] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic pressure testing device for wear resistance testing of leaf wheels, comprising a friction testing platform (1), characterized in that: A set of fixed slide rails (3) is fixedly installed on the top of the friction testing platform (1). An outer slide sleeve (4) is slidably connected to the outside of the fixed slide rails (3). An extension rod (5) is fixedly installed on the outside of the outer slide sleeve (4). Fixed blocks (6) are fixedly installed on the left and right sides of the top of the friction testing platform (1). A touch switch (7) is fixedly installed on the outside of the fixed block (6). A placement platform (8) is fixedly installed on the top of the outer slide sleeve (4). A gantry frame (12) is fixedly installed on the top of the outside of the friction testing platform (1). A drive box (13) is fixedly installed on the top of the gantry frame (12). A servo motor (14) is fixedly installed on the outside of the drive box (13). A drive screw (15) is fixedly installed at the output end of the servo motor (14). An outer thread sleeve (16) is rotatably connected to the outside of the drive screw (15). A telescopic frame (18) is fixedly installed at the bottom of the outer thread sleeve (16). An infrared scanning head (19) is fixedly installed at the bottom of the telescopic frame (18). A support frame (20) is fixedly installed on the back of the friction testing platform (1). An inclined pusher frame (21) is fixedly installed inside the support frame (20) by screws. A drive motor (25) is fixedly installed above the inclined pusher frame (21). A spiral rising rod (2501) is fixedly installed at the output end of the drive motor (25). A counterweight ball (2502) is pushed by the spiral rising rod (2501) in rotation. A lower ball tube (26) is fixedly installed on the outside of the inclined pusher frame (21). A pressure cylinder (27) is fixedly connected to the other end of the lower ball tube (26). A lower pressure rod (28) is slidably connected inside the pressure cylinder (27).

2. The automatic pressure testing device for wear resistance testing of leaf wheels according to claim 1, characterized in that: A front display screen (2) is fixedly installed on the front of the friction testing platform (1), and the touch switch (7) and the extension rod (5) abut against each other.

3. The automatic pressure testing device for wear resistance testing of a flap wheel according to claim 1, characterized in that: A micro motor (801) is fixedly installed at the bottom of the placement platform (8). A rotating disk (802) is fixedly installed at the output end of the micro motor (801) through a coupling. A fixing screw (803) is threaded through the upper part of the rotating disk (802). A leaf wheel body (804) is connected to the external thread of the fixing screw (803). A first extension platform (9) is fixedly installed on the outer side of the placement platform (8). A first rotating shaft (10) is fixedly installed above the first extension platform (9).

4. The automatic pressure testing device for wear resistance testing of a leaf wheel according to claim 1, characterized in that: A reciprocating turntable (11) is rotatably connected to the upper side of the friction testing platform (1), and a second extension platform (1101) is fixedly installed above the reciprocating turntable (11), and a second rotating shaft (1102) is fixedly installed above the second extension platform (1101).

5. The automatic pressure testing device for wear resistance testing of leaf rollers according to claim 4, characterized in that: The second rotating shaft (1102) is externally rotatably connected to a reciprocating pull rod (1103), and the other end of the reciprocating pull rod (1103) is rotatably connected to the first rotating shaft (10).

6. The automatic pressure testing device for wear resistance testing of leaf rollers according to claim 1, characterized in that: The drive box (13) and the gantry frame (12) are integrated into one structure. The drive box (13) has a through groove (17) inside. The telescopic frame (18) passes through the through groove (17) and is fixedly connected to the outer threaded sleeve (16).

7. The automatic pressure testing device for wear resistance testing of a leaf wheel according to claim 1, characterized in that: The inclined pusher (21) is fixedly installed with a counterweight box (22) on the outside. An inlet (23) is provided on the top of the counterweight box (22). A bead outlet (24) is provided on the side of the inclined pusher (21) that is in contact with the inlet and outlet of the counterweight box (22).

8. The automatic pressure testing device for wear resistance testing of a leaf wheel according to claim 1, characterized in that: The upper end of the pressure rod (28) is provided with a pressure groove (2801). A ball bearing plate (2802) is fixedly installed at the top of the pressure rod (28). A friction wheel (30) is fixedly installed at the bottom of the pressure rod (28). A contact sensor (31) is fixedly installed inside the friction wheel (30). An external wire (32) is fixedly connected above the contact sensor (31). A viewing window (33) is provided on the outside of the pressure cylinder (27).

9. The automatic pressure testing device for wear resistance testing of a leaf wheel according to claim 1, characterized in that: Telescopic cylinders (29) are fixedly installed on both sides of the external side of the pressure cylinder (27). A spring telescopic rod (2901) is fixedly installed inside the telescopic cylinder (29). A front telescopic rod (2902) is fixedly installed at the front end of the spring telescopic rod (2901). A grooved helical tooth (2903) is fixedly installed at the other end of the front telescopic rod (2902). The grooved helical tooth (2903) abuts against the lower pressure groove (2801).

10. An automatic pressure testing method for wear resistance testing of leaf wheels, comprising the automatic pressure testing device for wear resistance testing of leaf wheels as described in any one of claims 1-10, characterized in that: The specific processing steps are as follows: Step 1: Place the frame (8) to drive the flap wheel to slide left and right on the friction detection platform (1). Slide it to the side close to the reciprocating turntable (11), and use the extension rod (5) to contact the touch switch (7) to trigger the inclined push frame (21), so that the spiral rising rod (2501) drives the counterweight ball (2502) to rotate and rise. Step 2: The counterweight bead (2502) slides into the pressure cylinder (27) by gravity with the help of the spiral rising rod (2501), and is aligned with the pressing rod (28) to press down, so that the friction wheel (30) is more in contact with the surface of the flap wheel for friction testing and automatic pressure application; Step 3: When the placement platform (8) moves away from the reciprocating turntable (11), it will trigger the touch switch (7) on the other side and disengage from the friction wheel (30). The drive screw (15) will drive the infrared scanning head (19) to move back and forth to scan the current friction condition of the page wheel.

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