Fatigue test tool for polymer rubber shock absorber

Abstract

The invention belongs to the technical field of rubber shock absorbers, and particularly relates to a macromolecular rubber shock absorber fatigue test tool which comprises a base and a mounting plate fixedly connected with the upper surface of the base, the outer wall of the mounting plate is fixedly connected with a test frame and a connecting plate, and the outer wall of the test frame is fixedly connected with two sets of symmetrical transverse plates. First threaded rods are rotationally connected between the inner walls of the two transverse plates, and the two first threaded rods are fixedly connected through a transmission belt. The rubber shock absorber fatigue testing device can meet fatigue testing requirements of rubber shock absorbers of different models, does not need to frequently replace proper testing tools, can eliminate tiny differences among different testing tools, prevents the rubber shock absorbers from being separated from the testing tools, avoids errors of testing results and influences on the final quality of the rubber shock absorbers, and improves the testing efficiency. The extra time and labor cost is reduced, and the use effect of the fatigue test tool for the rubber shock absorber is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of rubber shock absorbers, and in particular relates to a fatigue testing tool for a polymer rubber shock absorber. Background Art

[0002] Rubber shock absorbers are usually used to reduce the vibration and noise generated by mechanical equipment or structures during operation or external impact. They are widely used in the engineering field. Rubber shock absorbers use the elasticity and shock absorption properties of rubber to convert vibration and vibration into heat energy or reduce the transmission to surrounding structures, thereby reducing the vibration and noise of the structure. However, rubber shock absorbers need to undergo fatigue testing before use to ensure the normal use of rubber shock absorbers.

[0003] At present, each model of rubber shock absorber requires a specific clamping test fixture, and the existing test fixtures need to be replaced back and forth for different models of rubber shock absorbers. Since there may be slight differences between different test fixtures and the test process requires long-term vibration, the rubber shock absorber is likely to detach from or fall off the test fixture, resulting in differences in test results, which in turn affects the final quality of the rubber shock absorber. At the same time, frequent replacement of test fixtures requires additional time and labor costs, which reduces the use effect of the rubber shock absorber fatigue test fixture.

[0004] To this end, the present invention proposes a polymer rubber shock absorber fatigue test tool to solve the above problem. Summary of the invention

[0005] The purpose of the present invention is to provide a polymer rubber shock absorber fatigue test tool to solve the above problems.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a polymer rubber shock absorber fatigue test fixture, comprising a base and a mounting plate fixedly connected to the upper surface of the base, the outer walls of the mounting plate are respectively fixedly connected to a test frame and a connecting plate, the outer wall of the test frame is fixedly connected to two groups of symmetrical horizontal plates, the inner walls of the two groups of the horizontal plates are rotatably connected with a first threaded rod, and the two first threaded rods are fixedly connected by a transmission belt, the lower surface of the connecting plate is fixedly connected with a reduction motor driving one of the first threaded rods, the rod walls of the two first threaded rods are threadedly connected with a threaded block, the inner wall of the test frame is provided with a slide groove, and the inner wall of the slide groove is slidably connected to the outer wall of the threaded block, and the outer walls of the two threaded blocks are fixedly connected with a moving frame; The inner walls of the two moving frames are both fixedly connected with a first cylinder, the inner walls of the moving frames are provided with a clamping plate for fixing the first cylinder, the telescopic end of the first cylinder is fixedly connected with a driving frame, the inner wall of the driving frame is fixedly connected with a damping spring, the inner wall of the driving frame is slidably connected with a moving block, and the inner wall of the moving block is provided with a connecting through hole matching the damping spring, and the outer wall of the moving block is fixedly connected with a clamp body; The inner wall of the bottom end of the test frame is fixedly connected with a workbench and a second cylinder respectively, the telescopic end of the second cylinder is fixedly connected with a pressure sensor, and the inner wall of the workbench is provided with a movable through hole matching the size of the pressure sensor.

[0007] In the above-mentioned polymer rubber shock absorber fatigue testing tool, the top inner wall of the test frame is rotatably connected to two symmetrical second threaded rods, the outer walls of the two driving frames are fixedly connected to toothed plates, the bottom outer walls of the two second threaded rods are provided with active gears meshing with the toothed plates, the outer walls of the two second threaded rods are threadedly connected to movable blocks, the outer walls of the two movable blocks are commonly fixedly connected to a vibration frame, the lower surface of the vibration frame is provided with a load plate, the inner wall of the vibration frame is provided with a vibration motor, the bottom inner wall of the vibration frame is movably connected to two symmetrical conduction plates, and the outer walls of the two conduction plates are commonly fixedly connected with a conduction rod, and the outer walls of the two conduction plates are fixedly connected to an L-shaped vibration plate that passes through the inner wall of the vibration frame.

[0008] In the above-mentioned polymer rubber shock absorber fatigue test tool, a temperature sensor is provided on the top inner wall of the test frame, and an air gathering box and a suction pump are fixedly connected to the upper surface of the base, respectively, the exhaust end of the suction pump is connected to the inner wall of the air gathering box, and the suction end of the suction pump is connected to a suction hood, a heating block and a refrigeration equipment body are provided on the inner wall of the air gathering box, a transmission pipe is interconnected between the air gathering box and the test frame, and the pipe mouth of the transmission pipe is connected to an air outlet hood, and two symmetrical fans are provided on the bottom inner wall of the test frame.

[0009] In the above-mentioned polymer rubber shock absorber fatigue test fixture, two symmetrical slide grooves are opened on the inner wall of the top of the workbench, and the inner walls of the two slide grooves are slidably connected with sliders, and the upper surface of the slider is fixedly connected to the lower surface of the fixture body.

[0010] In the above-mentioned polymer rubber shock absorber fatigue test fixture, the inner walls of the two moving frames are fixedly connected with card slots, and the upper surfaces of the two moving blocks are provided with card blocks that are mutually engaged with the card slots.

[0011] In the above-mentioned polymer rubber shock absorber fatigue test fixture, the inner walls of the two groups of the horizontal plates are fixedly connected with limit rods, and the rod walls of the two limit rods are slidably connected to the inner walls of the two threaded blocks.

[0012] In the above-mentioned polymer rubber shock absorber fatigue test tooling, a control panel is provided on the upper surface of the connecting plate, and the reduction motor, the first cylinder, the second cylinder, the suction pump, the heating block, the refrigeration equipment body, the vibration motor and the pressure sensor are all electrically connected to the control panel signal.

[0013] In the above-mentioned polymer rubber shock absorber fatigue test tool, the inner wall of the bottom end of the test frame is rotatably connected to two symmetrical rotating rods, the top ends of the two rotating rods are provided with driven gears that mesh with the driving gears, and the rod walls of the two rotating rods are fixedly connected with blades.

[0014] In the above-mentioned polymer rubber shock absorber fatigue test tooling, a touch pressure switch is provided on the inner wall of the driving frame, a trigger member matching the touch pressure switch is provided on the outer wall of the moving block, a detection system body is provided on the inner wall of the bottom end of the driving frame, an elastic airbag is provided on the outer wall of the fixture body, an air pump is provided on the bottom end of the driving frame, the exhaust end of the air pump passes through the inner wall of the fixture body and is connected to the inner wall of the elastic airbag, and an electrical signal connection is provided between the trigger switch and the air pump.

[0015] In the above-mentioned polymer rubber shock absorber fatigue testing tool, two symmetrical elastic telescopic rods are fixedly connected to the upper surface of the workbench, and the lower surface of the pressure sensor is provided with a shock-proof bracket that passes through the telescopic end of the second cylinder, and the interior of the shock-proof bracket is filled with rubber particles, and the ends of the two elastic telescopic rods away from the workbench are fixedly connected to the bottom end of the shock-proof bracket.

[0016] Compared with the existing technology, the advantages of a polymer rubber shock absorber fatigue test tool are: Through the mutual cooperation of the movable frame, the first cylinder, the driving frame, the damping spring, the movable block, the second cylinder, the clamping plate and the threaded block, it can be adapted to the fatigue test needs of rubber shock absorbers of different models without the need to frequently replace suitable test fixtures. At the same time, it can eliminate slight differences between different test fixtures, prevent the rubber shock absorber from detaching from the test fixture, avoid errors in the test results and affect the final quality of the rubber shock absorber, reduce additional time and labor costs, and improve the use effect of the rubber shock absorber fatigue test fixture.

[0017] Through the mutual cooperation of the toothed plate, active gear, movable block, vibration motor, conduction plate, conduction rod and L-shaped vibration plate, the toothed plate can be driven during the clamping process of the rubber shock absorber, so that the toothed plate drives the load plate to fit with the upper end of the rubber shock absorber, which can simulate the situation of the rubber shock absorber in the actual working state, making the test results closer to the actual application scenarios, and at the same time can simulate the vibration environment that the rubber shock absorber is subjected to in actual work, so as to more realistically evaluate its fatigue performance under long-term vibration.

[0018] Through the coordination of the gas collection box, suction pump, filter screen, heating block, fan and transmission pipe, the temperature of the rubber shock absorber during fatigue testing can be monitored in real time to prevent large temperature changes from affecting the hardness of the rubber shock absorber itself and the vibration absorption performance of the rubber shock absorber during testing. The temperature can be kept stable during the test to eliminate the influence of temperature changes on the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The three-dimensional structure of the present invention is shown in FIG. Figure 1 ; Figure 2 The three-dimensional structure of the present invention is shown in FIG. Figure 2 ; Figure 3 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention. Figure 1 ; Figure 4 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention. Figure 2 ; Figure 5 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention. Figure 3 ; Figure 6 It is a schematic diagram of a partial three-dimensional cross-sectional structure of the present invention. Figure 4 ; Figure 7 This is a partial planar structure diagram of the present invention. Figure 1 ; Figure 8 This is a partial planar structure diagram of the present invention. Figure 2 .

[0020] In the figure: 1, base; 2, mounting plate; 3, test frame; 4, connecting plate; 41, cross plate; 42, first threaded rod; 43, reduction motor; 44, threaded block; 45, moving frame; 46, first cylinder; 47, clamping plate; 48, driving frame; 49, damping spring; 481, moving block; 482, fixture body; 483, trigger switch; 484, trigger member; 485, detection system body; 486, elastic airbag; 487, air pump; 5, workbench; 6, second cylinder; 7, pressure sensor; 8, second threaded rod; 81, tooth plate; 82, main Moving gear; 83, movable block; 84, vibration frame; 85, load plate; 86, vibration motor; 87, conduction plate; 88, conduction rod; 89, L-shaped vibration plate; 9, temperature sensor; 10, gas collection box; 11, suction pump; 13, suction hood; 14, filter screen; 15, heating block; 16, refrigeration equipment body; 17, transmission pipe; 18, fan; 19, slider; 20, slot; 21, block; 22, limit rod; 23, control panel; 24, rotating rod; 25, driven gear; 26, blade; 27, elastic telescopic rod; 28, shockproof bracket. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] like Figures 1 to 8As shown, a polymer rubber shock absorber fatigue test fixture comprises a base 1 and a mounting plate 2 fixedly connected to the upper surface of the base 1, the outer wall of the mounting plate 2 is respectively fixedly connected to a test frame 3 and a connecting plate 4, the outer wall of the test frame 3 is fixedly connected to two sets of symmetrical horizontal plates 41, the inner walls of the two sets of horizontal plates 41 are both rotatably connected with a first threaded rod 42, and the two first threaded rods 42 are fixedly connected by a transmission belt, the lower surface of the connecting plate 4 is fixedly connected to a reduction motor 43 for driving one of the first threaded rods 42, and the two first threaded rods 42 are fixedly connected to the lower surface of the connecting plate 4. The rod walls are all threadedly connected with threaded blocks 44, the inner walls of the two sets of horizontal plates 41 are fixedly connected with limit rods 22, the rod walls of the two limit rods 22 are slidably connected with the inner walls of the two threaded blocks 44, which can effectively improve the stability of the threaded blocks 44 during horizontal movement, the inner wall of the test frame 3 is provided with a slide groove, and the inner wall of the slide groove is slidably connected with the outer wall of the threaded block 44, the outer walls of the two threaded blocks 44 are fixedly connected with a moving frame 45, the inner wall of the driving frame 45 is provided with a touch pressure switch 483, and the outer wall of the moving block 481 is provided with a touch pressure switch 483 matches the trigger member 484, the inner wall of the bottom end of the driving frame 45 is provided with a detection system body 485, the outer wall of the clamp body 482 is provided with an elastic airbag 486, the bottom end of the driving frame 48 is provided with an air pump 487, the exhaust end of the air pump 487 passes through the inner wall of the clamp body 482, and is connected to the inner wall of the elastic airbag 486, the trigger switch 483 is connected with the air pump 487 by electrical signals, and a real-time monitoring system is installed to monitor the stress, strain, vibration frequency and other parameters of the shock absorber during the test, so as to adjust the test conditions in time Or handle abnormal situations. At the same time, when the trigger member 484 and the touch-pressure switch 483 are in contact with each other, the trigger switch 483 can start the air pump 487, and the air pump 487 discharges air into the elastic airbag 486. When the clamp body 482 clamps and fixes the rubber shock absorber, the elastic airbag 486 can provide a uniform clamping force and can adapt to the shape and size of the rubber shock absorber, thereby ensuring that the shock absorber will not be damaged or twisted during the installation process, and its shock absorption performance is maintained to the greatest extent, which can further improve the clamping effect; The inner walls of the two moving frames 45 are fixedly connected with the first cylinder 46, the inner wall of the moving frame 45 is provided with a clamping plate 47 for fixing the first cylinder 46, the telescopic end of the first cylinder 46 is fixedly connected with a driving frame 48, the inner wall of the driving frame 48 is fixedly connected with a damping spring 49, the inner wall of the driving frame 48 is slidably connected with a moving block 481, the inner walls of the two moving frames 45 are fixedly connected with a clamping slot 20, and the upper surfaces of the two moving blocks 481 are provided with a clamping block 21 that is mutually clamped with the clamping slot 20 to prevent the moving blocks 48 from sliding. 1 is separated from the driving frame 48, and the moving block 481 can be prevented from being misplaced. The inner wall of the moving block 481 is provided with a connecting through hole matching the damping spring 49. The outer wall of the moving block 481 is fixedly connected with the fixture body 482. The top inner wall of the workbench 5 is provided with two symmetrical sliding grooves, and the inner walls of the two sliding grooves are slidably connected with the slider 19. The upper surface of the slider 19 is fixedly connected with the lower surface of the fixture body 482, which can effectively improve the stability of the fixture body 482 when moving. The inner wall of the bottom end of the test frame 3 is fixedly connected with a workbench 5 and a second cylinder 6 respectively, and two symmetrical elastic telescopic rods 27 are fixedly connected to the upper surface of the workbench 5. The lower surface of the pressure sensor 7 is provided with a shockproof bracket 28 that penetrates the telescopic end of the second cylinder 6, and the interior of the shockproof bracket 28 is filled with rubber particles. The ends of the two elastic telescopic rods 27 away from the workbench 5 are fixedly connected to the bottom ends of the shockproof bracket 28. The shockproof bracket 28 is added to the outside of the pressure sensor 7, which can reduce the influence of external vibration on the pressure sensor 7 and improve the stability and accuracy of the measurement. The telescopic end of the second cylinder 6 is fixedly connected with the pressure sensor 7. The inner wall of the workbench 5 is provided with a movable through hole that matches the size of the pressure sensor 7, which can be suitable for fatigue testing needs of rubber shock absorbers of different models, without the need to frequently replace suitable test fixtures, and at the same time can eliminate slight differences between different test fixtures, prevent the rubber shock absorber from detaching from the test fixture, avoid errors in the test results and affect the final quality of the rubber shock absorber, reduce additional time and labor costs, and improve the use effect of the rubber shock absorber fatigue test fixture.

[0023] The top inner wall of the test frame 3 is rotatably connected to two symmetrical second threaded rods 8, the outer walls of the two driving frames 48 are fixedly connected to toothed plates 81, the bottom outer walls of the two second threaded rods 8 are provided with driving gears 82 meshing with the toothed plates 81, the outer walls of the two second threaded rods 8 are threadedly connected to movable blocks 83, the outer walls of the two movable blocks 83 are commonly fixedly connected to a vibration frame 84, the lower surface of the vibration frame 84 is provided with a load plate 85, the inner wall of the vibration frame 84 is provided with a vibration motor 86, and the bottom inner wall of the vibration frame 84 is movably connected to two symmetrical conduction plates 87. A conduction rod 88 is fixedly connected between the outer walls of the two conduction plates 87. The outer walls of the two conduction plates 87 are fixedly connected with an L-shaped vibration plate 89 that penetrates the inner wall of the vibration frame 84. The tooth plate 81 can be driven during the clamping process of the rubber shock absorber, so that the tooth plate 81 drives the load plate 85 to fit with the upper end of the rubber shock absorber. This can simulate the actual working state of the rubber shock absorber, making the test results closer to the actual application scenario. At the same time, it can simulate the vibration environment that the rubber shock absorber is subjected to in actual work, so that its fatigue performance under long-term vibration can be more realistically evaluated.

[0024] A temperature sensor 9 is provided on the inner wall of the top end of the test frame 3, and two symmetrical rotating rods 24 are rotatably connected to the inner wall of the bottom end of the test frame 3. The top ends of the two rotating rods 24 are provided with driven gears 25 meshing with the driving gear 82. The rod walls of the two rotating rods 24 are fixedly connected with blades 26, which can accelerate the temperature diffusion speed inside the test frame 3 to ensure that the rubber shock absorber can be tested at a suitable temperature. The upper surface of the base 1 is respectively fixedly connected with an air collecting box 10 and a suction pump 11, the exhaust end of the suction pump 11 is connected to the inner wall of the air collecting box 10, and the suction end of the suction pump 11 is connected to the suction hood 13. The inner wall of the air collecting box 10 is provided with a heating block 15 and a refrigeration device body 16, and there is a heat exchanger 16 between the air collecting box 10 and the test frame 3. They are interconnected with a transmission pipe 17, and the pipe mouth of the transmission pipe 17 is connected with an air outlet hood. Two symmetrical fans 18 are arranged on the inner wall of the bottom end of the test frame 3. A control panel 23 is arranged on the upper surface of the connecting plate 4. The reduction motor 43, the first cylinder 46, the second cylinder 6, the suction pump 11, the heating block 15, the refrigeration equipment body 16, the vibration motor 86 and the pressure sensor 7 are all connected with the control panel 23 by electrical signals, so as to monitor the temperature of the rubber shock absorber during fatigue testing in real time, prevent the temperature amplitude from changing too much and thus affect the hardness of the rubber shock absorber itself, avoid affecting the vibration absorption performance of the rubber shock absorber during testing, and keep the temperature stability during the test to eliminate the influence of temperature changes on the test results.

[0025] The operating principle of the present invention is described as follows: when the present invention is in use, the staff first places the rubber shock absorber that needs fatigue testing on the upper surface of the workbench 5, and starts the reduction motor 43 through the control panel 23. The output end of the reduction motor 43 drives the first threaded rod 42 to rotate, and then the first threaded rod 42 allows the other first threaded rod 42 to rotate synchronously through the rotating belt, so that the two threaded blocks 44 move horizontally on the first threaded rod 42. At the same time, the two threaded blocks 44 drive the moving block 481 to move to a suitable position, and then start the first cylinder 46. The telescopic end of the first cylinder 46 drives the driving frame 48 to move, and drives the slider 19 at the bottom to move horizontally on the workbench 5, so as to improve the stability of the driving frame 48 during movement and prevent the clamping path of the driving frame 48 from being offset, until the outer wall of the clamp body 482 is aligned with the rubber shock absorber. The outer walls of the shock absorber are clamped together, and then the clamping force is applied to the moving block 481 and the damping spring 49, so that the moving block 481 squeezes the damping spring 49, causing the damping spring 49 to undergo elastic deformation to offset the force, thereby preventing the high clamping force from causing damage to the rubber shock absorber. Then the second cylinder 6 is started, and the telescopic end of the second cylinder 6 drives the pressure sensor 7 to move upward until it passes through the inner wall of the workbench 5 and fits with the lower surface of the rubber shock absorber. It can be suitable for fatigue testing of rubber shock absorbers of different models, without the need to frequently replace suitable test fixtures. At the same time, it can eliminate slight differences between different test fixtures, prevent the rubber shock absorber from detaching from the test fixture, avoid errors in the test results and affect the final quality of the rubber shock absorber, reduce additional time and labor costs, and improve the use effect of the rubber shock absorber fatigue test fixture; When the clamp body 482 clamps the rubber shock absorber, the toothed plate 81 on the outer wall of the driving frame 48 will move with the movement of the driving frame 48, and the driving frame 48 will move to a position away from the active gear 82. Since the toothed plate 81 and the active gear 82 are in a state of mutual meshing, the toothed plate 81 moves horizontally to drive the active gear 82 to rotate, and the active gear 82 drives the second threaded rod 8 to rotate, thereby making the movable block 83 on the second threaded rod 8 move horizontally, so that the two movable blocks 83 drive the vibration frame 84 to move downward. When the clamp body 482 completes the clamping, the load plate 85 on the lower surface of the vibration frame 84 will fit with the upper surface of the rubber shock absorber, and the vibration motor 86 will be started at the same time. The vibration generated by the vibration motor 86 is transmitted to the vibration frame 84, and under the interaction of the conduction plate 87 and the conduction rod 88, it simulates the vibration environment of the rubber shock absorber when it is working, so as to carry out fatigue testing and test the results. The result is recorded by the pressure sensor 7 and then transmitted to the control panel 23 by an electrical signal. At the same time, the temperature sensor 9 monitors the temperature of the rubber shock absorber during fatigue test in real time. When the temperature is high or low, timely adjustments are made. The heating block 15 or the refrigeration equipment body 16 is started according to the corresponding temperature that needs to be adjusted. The suction pump 11 then sucks the outside air into the interior of the gas collection box 10, mixes it with the appropriate temperature, and then blows it to the surface of the rubber shock absorber through the transmission end. At the same time, the active gear 82 drives the driven gear 25 to rotate, and then the driven gear 25 drives the rotating rod 24 and the blade 26 to rotate, so as to accelerate the diffusion speed of the appropriate temperature. The temperature of the rubber shock absorber during fatigue test can be monitored in real time to prevent large changes in temperature from affecting the hardness of the rubber shock absorber itself, avoid affecting the vibration absorption performance of the rubber shock absorber during the test, and keep the temperature stable during the test to eliminate the influence of temperature changes on the test results. During the test, the vibration response, deformation and changes in other relevant parameters of the rubber shock absorber sample are recorded and monitored, and the pressure sensor 7 is used to monitor the status of the sample in real time. Subsequently, the staff will analyze and evaluate the vibration frequency, amplitude, load condition and response data of the sample. During the clamping process of the rubber shock absorber, the tooth plate 81 can be driven to drive the load plate 85 to fit the upper end of the rubber shock absorber, which can simulate the actual working state of the rubber shock absorber, making the test results closer to the actual application scenario. At the same time, it can simulate the vibration environment that the rubber shock absorber is subjected to in actual work, so that its fatigue performance under long-term vibration can be more realistically evaluated.

[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A polymer rubber shock absorber fatigue test tool, characterized in that: It comprises a base (1) and a mounting plate (2) fixedly connected to the upper surface of the base (1), the outer wall of the mounting plate (2) being fixedly connected to a test frame (3) and a connecting plate (4), the outer wall of the test frame (3) being fixedly connected to two groups of symmetrical transverse plates (41), the inner walls of the two groups of transverse plates (41) being rotatably connected to a first threaded rod (42), and the two first threaded rods (42) being fixedly connected to each other via a transmission belt, the lower surface of the connecting plate (4) being fixedly connected to a reduction motor (43) for driving one of the first threaded rods (42), the rod walls of the two first threaded rods (42) being threadedly connected to a threaded block (44), the inner wall of the test frame (3) being provided with a slide groove, and the inner wall of the slide groove being slidably connected to the outer wall of the threaded block (44), and the outer walls of the two threaded blocks (44) being fixedly connected to a moving frame (45); The inner walls of the two moving frames (45) are both fixedly connected to a first cylinder (46); the inner walls of the moving frames (45) are provided with a clamping plate (47) for fixing the first cylinder (46); the telescopic end of the first cylinder (46) is fixedly connected to a driving frame (48); the inner wall of the driving frame (48) is fixedly connected to a damping spring (49); the inner wall of the driving frame (48) is slidably connected to a moving block (481); the inner wall of the moving block (481) is provided with a connecting through hole matching the damping spring (49); and the outer wall of the moving block (481) is fixedly connected to a clamp body (482); The inner wall of the bottom end of the test frame (3) is respectively fixedly connected to a workbench (5) and a second cylinder (6); the telescopic end of the second cylinder (6) is fixedly connected to a pressure sensor (7); and the inner wall of the workbench (5) is provided with a movable through hole of a size matching that of the pressure sensor (7).

2. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that: The top inner wall of the test frame (3) is rotatably connected to two symmetrical second threaded rods (8); the outer walls of the two drive frames (48) are fixedly connected to toothed plates (81); the bottom outer walls of the two second threaded rods (8) are provided with driving gears (82) meshing with the toothed plates (81); the outer walls of the two second threaded rods (8) are threadedly connected to movable blocks (83); the outer walls of the two movable blocks (83) are commonly fixedly connected to a vibration frame (84); a load plate (85) is provided on the lower surface of the vibration frame (84); a vibration motor (86) is provided on the inner wall of the vibration frame (84); the bottom inner wall of the vibration frame (84) is movably connected to two symmetrical conduction plates (87); a conduction rod (88) is commonly fixedly connected to the outer walls of the two conduction plates (87); and the outer walls of the two conduction plates (87) are fixedly connected to an L-shaped vibration plate (89) penetrating the inner wall of the vibration frame (84).

3. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that: A temperature sensor (9) is provided on the inner wall at the top of the test frame (3); an air collecting box (10) and a suction pump (11) are fixedly connected to the upper surface of the base (1), respectively; an exhaust end of the suction pump (11) is connected to the inner wall of the air collecting box (10); an intake end of the suction pump (11) is connected to a suction hood (13); a heating block (15) and a refrigeration device body (16) are provided on the inner wall of the air collecting box (10); a transmission pipe (17) is connected between the air collecting box (10) and the test frame (3); and an outlet hood is connected at the pipe mouth of the transmission pipe (17); and two symmetrical fans (18) are provided on the inner wall at the bottom end of the test frame (3).

4. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that: The top inner wall of the workbench (5) is provided with two symmetrical sliding grooves, and the inner walls of the two sliding grooves are slidably connected with a slider (19), and the upper surface of the slider (19) is fixedly connected to the lower surface of the clamp body (482).

5. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that: The inner walls of the two movable frames (45) are both fixedly connected with a clamping slot (20), and the upper surfaces of the two movable blocks (481) are both provided with a clamping block (21) that is mutually clamped with the clamping slot (20).

6. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that: The inner walls of the two groups of transverse plates (41) are fixedly connected with limiting rods (22), and the rod walls of the two limiting rods (22) are slidably connected to the inner walls of the two threaded blocks (44).

7. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that: A control panel (23) is provided on the upper surface of the connecting plate (4); the reduction motor (43), the first cylinder (46), the second cylinder (6), the suction pump (11), the heating block (15), the refrigeration device body (16), the vibration motor (86) and the pressure sensor (7) are all electrically connected to the control panel (23).

8. The polymer rubber shock absorber fatigue test tool according to claim 3, characterized in that: The inner wall of the bottom end of the test frame (3) is rotatably connected to two symmetrical rotating rods (24), the top ends of the two rotating rods (24) are provided with driven gears (25) that mesh with the driving gear (82), and the rod walls of the two rotating rods (24) are fixedly connected to blades (26).

9. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that The inner wall of the driving frame (48) is provided with a touch pressure switch (483), the outer wall of the moving block (481) is provided with a trigger member (484) matching the touch pressure switch (483), the inner wall of the bottom end of the driving frame (48) is provided with a detection system body (485), the outer wall of the clamp body (482) is provided with an elastic air bag (486), the bottom end of the driving frame (48) is provided with an air pump (487), the exhaust end of the air pump (487) passes through the inner wall of the clamp body (482) and is connected to the inner wall of the elastic air bag (486), and the trigger switch (483) is connected to the air pump (487) by electrical signals.

10. The polymer rubber shock absorber fatigue test tool according to claim 1, characterized in that: The upper surface of the workbench (5) is fixedly connected to two symmetrical elastic telescopic rods (27), the lower surface of the pressure sensor (7) is provided with a shockproof bracket (28) that passes through the telescopic end of the second cylinder (6), and the interior of the shockproof bracket (28) is filled with rubber particles, and the ends of the two elastic telescopic rods (27) away from the workbench (5) are fixedly connected to the bottom end of the shockproof bracket (28).

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