Partition plate fatigue testing device

Abstract

The invention relates to the technical field of testing devices, in particular to a partition plate fatigue testing device which comprises a workbench, and a clamping mechanism, a swing testing mechanism, a polishing mechanism, a scrap absorbing mechanism and a tensile testing mechanism are arranged at the top end of the workbench; the clamping mechanism comprises a U-shaped clamping groove and an L-shaped clamping plate, the U-shaped clamping groove is used for clamping the top of the partition plate, the L-shaped clamping plate is used for clamping the lower portion of the partition plate, the grinding mechanism comprises two telescopic plates, one end of the outer side of the telescopic plate on one side is fixedly connected with a first motor, and the other end of the outer side of the telescopic plate on the other side is fixedly connected with a second motor. The driving end of the first motor is fixedly connected with the driving shaft B. The two telescopic plates are rotationally connected with a connecting pipe and the driving shaft B correspondingly. According to the invention, the wear effect during use in reality can be simulated, so that when the fatigue life is tested, accurate test data can be obtained, and the accuracy of the fatigue life of the partition plate is ensured.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a partition fatigue testing device. Background Technology

[0002] Inclined-angle sidewall conveyor belts offer advantages such as high conveying efficiency, small footprint, and low operating costs in bulk material lifting. However, in the Chinese market, domestically produced inclined-angle conveyor belts often experience issues during use, including vertical lifting spillage and deformation of the baffles, ultimately leading to poor operating environments and failure to achieve intended production targets. This is because the design lifespan of the baffles in inclined-angle sidewall conveyor belts varies. Current national standards only specify dimensional requirements for baffles in inclined-angle sidewall conveyor belts. Testing is required to assess deformation, fatigue life after loading and unloading deformation, and performance during operation. Intelligent sensors are used in these tests to improve efficiency and enable intelligent testing.

[0003] In the existing technology, when conducting fatigue tests on the partition, only a swinging and bending operation is performed, which cannot reproduce the wear caused by the material impacting the partition during actual material conveying. As a result, the data obtained from the back-and-forth swinging and bending is not accurate enough, which in turn affects the accuracy of the partition's fatigue life. Furthermore, the test only measures the fatigue life under bending conditions and cannot test the fatigue fracture of the partition, resulting in fewer test items and reducing the applicability of the device. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of the prior art by proposing a diaphragm fatigue testing device.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a partition fatigue testing device, including a workbench, wherein the top of the workbench is provided with a clamping mechanism, a swing testing mechanism, a grinding mechanism, a debris absorption mechanism and a tensile testing mechanism; The clamping mechanism includes a U-shaped clamping groove and an L-shaped clamping plate. The U-shaped clamping groove is used to clamp the top of the partition, and the L-shaped clamping plate is used to clamp the bottom of the partition. The grinding mechanism includes two telescopic plates. A first motor is fixedly connected to one end of the outer side of one telescopic plate. The drive end of the first motor is fixedly connected to a drive shaft B. A connecting pipe and a drive shaft B are rotatably connected to the two telescopic plates respectively. A grinding roller is fixedly connected between the connecting pipe and the drive shaft B. The grinding roller is used to grind one side of the partition to simulate the surrounding environment. The debris absorption mechanism includes absorption holes formed on the grinding roller, which are used to absorb the debris generated during grinding. The swaying test mechanism is used to perform fatigue testing on the partition.

[0006] Preferably, the clamping mechanism includes bases symmetrically fixedly connected to both sides of the top of the workbench, with a sliding shaft fixedly connected between each of the two sets of bases, and also includes two L-shaped clamps. Each of the two L-shaped clamps is provided with a sliding groove, which is respectively located on the outside of the two sliding shafts. Each of the two L-shaped clamps is threaded with a fastening bolt, and strain gauge sensors are fixedly embedded on both sides of one end of each L-shaped clamp that is close to each other.

[0007] Preferably, the clamping mechanism further includes a U-shaped clamping groove, one end of which is threaded with an adjusting bolt, and one end of the adjusting bolt is rotatably connected to a clamping block.

[0008] Preferably, the swing test mechanism includes a motor mounting box fixedly connected to one end of the workbench via a horizontal plate, a right swing arm rotatably connected to one end of the motor mounting box, and a left swing arm rotatably connected to the other end of the workbench. Adjustment holes are provided on both the left and right swing arms, and guide mounting shafts are provided on the inner walls of the two adjustment holes. A crossbar is fixedly connected between the two guide mounting shafts. The crossbar is fixedly connected to a U-shaped clamping groove, and the crossbar is fixed to the left and right swing arms by fixing bolts.

[0009] Preferably, the swing test mechanism further includes a drive motor fixedly connected inside the motor mounting box. The drive end of the drive motor is fixedly connected to a drive spindle, and the other end of the drive spindle is fixedly connected to a crank. A connecting rod is hinged to the crank, and the connecting rod is hinged to the right swing arm. One end of the right swing arm is fixedly connected to a rotating shaft, and the rotating shaft is rotatably connected to the motor mounting box.

[0010] Preferably, the grinding mechanism further includes fixed upright plates symmetrically fixedly connected to the top of the workbench. A drive shaft A is rotatably passed through each of the two fixed upright plates. A telescopic sleeve is fixedly connected to one end of each of the two drive shafts A close to each other. An electric push rod is fixedly connected to one side of the inner wall of each of the two telescopic sleeves. The telescopic ends of the two electric push rods are fixedly connected to the two telescopic plates respectively. A second motor is fixedly connected to one end of the outer side of one of the fixed upright plates. The drive end of the second motor is fixedly connected to a drive shaft A.

[0011] Preferably, the debris absorption mechanism further includes a fixed shaft fixedly connected to one end of the outer side of the telescopic plate on the other side, a connecting block fixedly connected to the other end of the fixed shaft, the connecting block and the connecting pipe being rotatably connected, a flexible hose fixedly connected to the other end of the connecting block, a collection box fixedly connected to the other end of the flexible hose, the collection box being fixedly connected to the workbench, and an exhaust fan fixedly connected to the front end of the workbench on the side corresponding to the collection box, the exhaust fan and the collection box being fixedly connected.

[0012] Preferably, the tensile testing mechanism includes a fixed plate fixedly connected to the inner wall of the workbench. A hydraulic rod is fixedly connected to the middle of the top of the fixed plate. A lifting plate is fixedly connected to the telescopic end of the hydraulic rod. Moving rods are slidably connected to both sides of the top of the lifting plate. Fixed blocks are fixedly connected to the inner sides of the top of the lifting plate corresponding to the moving rods. Electric cylinders are fixedly connected to the ends of the two fixed blocks that are far apart from each other. The telescopic ends of the two electric cylinders are fixedly connected to the two moving rods respectively. Square holes are provided on both sides of the top of the workbench. The two square holes are respectively located on the outer sides of the two moving rods.

[0013] Preferably, the tensile testing mechanism further includes two clamping structures, each with a groove at one end away from the other, and a tension sensor fixedly connected to the inner wall of each groove. The two tension sensors and two moving rods are respectively fixedly connected.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The clamping mechanism can clamp the inclined part at the top of the partition, and can also clamp the extra part at the bottom of the partition to ensure the fixation effect, which facilitates the subsequent fatigue life test. The fatigue life test of the partition can be completed through the swing test mechanism. 2. The position of the grinding roller can be adjusted through the grinding mechanism, so any position can be ground when grinding the partition, thereby simulating the wear effect that occurs in real use. This allows for accurate test data to be obtained when testing fatigue life, ensuring the accuracy of the partition's fatigue life. 3. With the set debris absorption mechanism, when grinding the partition, the air pump can generate gas suction and transmit the suction to the inside of the grinding roller. At this time, the debris generated during grinding can be sucked into the collection box through the absorption hole, which can prevent debris from flying and avoid subsequent cleaning operations. 4. The tensile testing mechanism can hold the two sides of the partition through the clamping structure. Then, the partition is pulled by the electric push rod. At this time, the tensile force is monitored in real time by the tensile force sensor and the data is recorded. Therefore, fatigue fracture test can be performed, thereby improving the applicability of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of a partition fatigue testing device according to the present invention; Figure 2 This invention relates to a diaphragm fatigue testing device. Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is another side view of a partition fatigue testing device according to the present invention; Figure 4 This is a structural diagram of the right swing arm of a diaphragm fatigue testing device according to the present invention; Figure 5 This is a cutting diagram of the grinding roller of a partition fatigue testing device according to the present invention; Figure 6 This is a cross-sectional view of the telescopic sleeve of a partition fatigue testing device according to the present invention; Figure 7 This is a structural diagram of the workbench of a partition fatigue testing device according to the present invention; Figure 8 This is a cutting diagram of the lifting plate of a partition fatigue testing device according to the present invention; Figure 9 This is a diagram of the groove structure of a partition fatigue testing device according to the present invention; Figure 10 This is a structural diagram of the partition of a partition fatigue testing device according to the present invention.

[0016] In the diagram: 1. Workbench; 2. Telescopic plate; 3. First motor; 4. Telescopic sleeve; 5. Second motor; 6. Fixed upright plate; 7. Left swing arm; 8. L-shaped clamp; 9. Adjusting bolt; 10. U-shaped clamping groove; 11. Crossbeam; 12. Fixing bolt; 13. Guide mounting shaft; 14. Adjusting hole; 15. Right swing arm; 16. Connecting rod; 17. Tension sensor; 18. Crank; 19. Groove; 20. Hose; 21. Collection box; 22. Exhaust fan; 23. Fastening bolt ; 24. Grinding roller; 25. Absorption hole; 26. Drive shaft A; 27. Connecting block; 28. Fixed shaft; 29. ​​Connecting pipe; 30. Sliding groove; 31. Sliding shaft; 32. Strain gauge sensor; 33. Clamping block; 34. Base; 35. Clamping structure; 36. Rotating shaft; 37. Drive shaft B; 38. Electric push rod; 39. Square hole; 40. Moving rod; 41. Lifting plate; 42. Fixed plate; 43. Hydraulic rod; 44. Fixed block; 45. Electric cylinder. Detailed Implementation

[0017] The following description is intended to disclose the invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0018] like Figures 1-10The illustrated partition fatigue testing device includes a workbench 1. The top of the workbench 1 is equipped with a clamping mechanism, a swing testing mechanism, a grinding mechanism, a debris absorption mechanism, and a tensile testing mechanism. The clamping mechanism includes a U-shaped clamping groove 10 and an L-shaped clamping plate 8. The U-shaped clamping groove 10 clamps the top of the partition, and the L-shaped clamping plate 8 clamps the bottom of the partition. The grinding mechanism includes two telescopic plates 2. One end of one telescopic plate 2 is fixedly connected to a first motor 3, and the drive end of the first motor 3 is fixedly connected to a drive shaft B37. Connecting pipes 29 and drive shaft B37 are rotatably connected to the two telescopic plates 2, respectively. A grinding roller 24 is fixedly connected between the connecting pipe 29 and drive shaft B37. The grinding roller 24 grinds one side of the partition to simulate its environment. The debris absorption mechanism includes absorption holes 25 formed on the grinding roller 24 to absorb the debris generated during grinding. The swing testing mechanism is used to perform fatigue testing on the partition.

[0019] like Figure 1 , Figure 3 As shown, the clamping mechanism includes symmetrically fixed bases 34 on both sides of the top of the workbench 1. A sliding shaft 31 is fixedly connected between each of the two bases 34. It also includes two L-shaped clamping plates 8, each with a sliding groove 30. The two sliding grooves 30 are respectively located on the outside of the two sliding shafts 31. Fastening bolts 23 are threaded onto each of the two L-shaped clamping plates 8. Strain gauge sensors 32 are fixedly embedded on both sides of one end of each L-shaped clamping plate 8. These strain gauge sensors 32 are intelligent sensors that can collect and process real-time measured data, improving the intelligence of the test. The clamping mechanism also includes a U-shaped clamping groove 10. An adjusting bolt 9 is threaded through one end of the U-shaped clamping groove 10, and a clamping block 33 is rotatably connected to the other end of the adjusting bolt 9. A guide post is provided inside the U-shaped clamping groove 10 to limit the clamping block 33 and prevent deflection. The clamping mechanism can clamp and fix partitions of special shapes, thus enabling the testing device to perform specific clamping.

[0020] like Figure 1 , Figure 3 , Figure 4 As shown, the swing test mechanism includes a motor mounting box fixedly connected to one end of the workbench 1 via a horizontal plate. A right swing arm 15 is rotatably connected to one end of the motor mounting box. It also includes a left swing arm 7 rotatably connected to the other end of the workbench 1. Adjustment holes 14 are provided on both the left swing arm 7 and the right swing arm 15. Guide mounting shafts 13 are provided on the inner walls of the two adjustment holes 14. A cross frame 11 is fixedly connected between the two guide mounting shafts 13. The cross frame 11 is fixedly connected to the U-shaped clamping groove 10. The cross frame 11 is fixed to the left swing arm 7 and the right swing arm 15 by fixing bolts 12.

[0021] like Figure 4As shown, the swing test mechanism also includes a drive motor fixedly connected inside the motor mounting box. The drive end of the drive motor is fixedly connected to a drive spindle, and the other end of the drive spindle is fixedly connected to a crank 18. A connecting rod 16 is hinged to the crank 18. The connecting rod 16 and the right swing arm 15 are hinged together. One end of the right swing arm 15 is fixedly connected to a rotating shaft 36, and the rotating shaft 36 is rotatably connected to the motor mounting box.

[0022] like Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the grinding mechanism also includes fixed upright plates 6 symmetrically fixedly connected to the top of the worktable 1. Drive shafts A26 rotatably pass through both fixed upright plates 6. Telescopic sleeves 4 are fixedly connected to one end of each drive shaft A26, which is close to each other. Electric push rods 38 are fixedly connected to one side of the inner wall of each telescopic sleeve 4. The telescopic ends of the two electric push rods 38 are fixedly connected to the two telescopic plates 2 respectively. A second motor 5 is fixedly connected to one end of the outer side of one fixed upright plate 6. The drive end of the second motor 5 is fixedly connected to one drive shaft A26. The grinding mechanism is placed on the outer side by the fixed upright plates 6 to prevent interference with the clamping and fixing operation of the partition.

[0023] like Figure 1 , Figure 2 As shown, the debris absorption mechanism also includes a fixed shaft 28 fixedly connected to one end of the outer side of the telescopic plate 2 on the other side. A connecting block 27 is fixedly connected to the other end of the fixed shaft 28. The connecting block 27 and the connecting pipe 29 are rotatably connected. A flexible hose 20 is fixedly connected to the other end of the connecting block 27. A collection box 21 is fixedly connected to the other end of the flexible hose 20. The collection box 21 is fixedly connected to the worktable 1. An exhaust fan 22 is fixedly connected to the front side of the worktable 1 corresponding to the collection box 21. The exhaust fan 22 and the collection box 21 are fixedly connected. Suction is generated by the exhaust fan 22, and this suction is transmitted into the grinding roller 24 through the collection box 21, flexible hose 20, connecting block 27, and connecting pipe 29. The debris generated during grinding is then absorbed in real time through the absorption holes 25, ensuring a clean and tidy surrounding environment and avoiding subsequent cleaning.

[0024] like Figure 3 , Figure 7 , Figure 8As shown, the tensile testing mechanism includes a fixed plate 42 fixedly connected to the inner wall of the workbench 1. A hydraulic rod 43 is fixedly connected to the middle of the top of the fixed plate 42. A lifting plate 41 is fixedly connected to the telescopic end of the hydraulic rod 43. Moving rods 40 are slidably connected to both sides of the top of the lifting plate 41. Fixed blocks 44 are fixedly connected to the inner sides of the top of the lifting plate 41 corresponding to the moving rods 40. Electric cylinders 45 are fixedly connected to the ends of the two fixed blocks 44 that are far apart from each other. The telescopic ends of the two electric cylinders 45 are fixedly connected to the two moving rods 40 respectively. Square holes 39 are provided on both sides of the top of the workbench 1. The two square holes 39 are respectively located on the outer sides of the two moving rods 40. The moving rods 40 are limited by the square holes 39. When fatigue fracture testing is required, the clamping structure 35 is lifted upward by the hydraulic rod 43 and reaches the vertical part of the partition. The clamping structure 35 clamps the part on the partition. Then, the electric cylinders 45 push the moving rods 40 to move outward and perform fatigue fracture testing.

[0025] like Figure 9 As shown, the tensile testing mechanism also includes two clamping structures 35. The initial position of the clamping structures 35 is at the bottom to prevent interference with the grinding operation. Each clamping structure 35 has a groove 19 at its opposite end. A tensile sensor 17 is fixedly connected to the inner wall of each groove 19. The two tensile sensors 17 and two moving rods 40 are respectively fixedly connected. Fatigue fracture testing can be performed using the tensile sensors 17. Since the tensile sensors 17 are intelligent sensors, they can record the measured data in real time, improving the intelligence of the testing process.

[0026] Working principle: First, place the partition at the top center of the workbench 1. Then, rotate the adjusting bolt 9, moving the clamping block 33 closer to the partition. Since the guide post is fixed to the inner wall of the U-shaped clamping groove 10, it can guide the clamping block 33 and prevent it from rotating. The clamping block 33 clamps and fixes the inclined part of the partition. Then, move the L-shaped clamping plates 8 on both sides to contact the partition. Then, rotate the fastening bolt 23 and use the sliding shaft 31 as support to raise the L-shaped clamping plates 8 away from each other, and lower the L-shaped clamping plates 8 that are close to each other, thus completing the clamping of the partition. Once fixed, the second motor 5 is started to rotate the drive shaft A26 on one side, which causes the telescopic sleeve 4 to flip, and simultaneously rotates the grinding roller 24. At the same time, the electric push rod 38 is started to push the telescopic plate 2 to move outward and make the grinding roller 24 contact one end of the partition. Then, the first motor 3 is started to rotate the drive shaft B37, which rotates the grinding roller 24 and performs a grinding operation on the partition through the grinding roller 24. This can simulate the wear effect that occurs in actual use, and thus obtain accurate test data when testing fatigue life, and ensure the accuracy of the fatigue life of the partition. During the polishing process, the exhaust fan 22 is activated simultaneously to generate suction. The suction is transmitted into the polishing roller 24 through the collection box 21, hose 20, connecting block 27 and connecting pipe 29. At this time, the suction generated inside the polishing roller 24 can absorb the polishing debris into the collection box 21. The collection box 21 is equipped with a filter plate to prevent debris from entering the exhaust fan 22, thus playing a protective role. The cover on the collection box 21 can be opened to facilitate the cleaning of the debris inside. By cleaning the debris, it can prevent debris from splashing and avoid subsequent cleaning operations. The grinding mechanism is then reset and the crank 18 is rotated by the drive motor. Since the connecting rod 16 is hinged to the crank 18 and the right swing rod 15, the cross frame 11 can swing back and forth. During the swing, the stress change is monitored by the strain sensor 32, thereby completing the fatigue life test of the partition. After the fatigue life test is completed, a new partition can be replaced and the new partition can be ground. At this time, the hydraulic rod 43 is activated to push the lifting plate 41 upward and make the clamping structure 35 reach the vertical position of the partition. At this time, the clamping structure 35 clamps the vertical part of the partition. Then, the electric cylinders 45 on both sides are controlled by the synchronous controller to move outward. The tension sensor 17 monitors the generated tension in real time and records the data. Therefore, fatigue fracture test can be performed to improve the applicability of the device.

[0027] 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 principles of 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 claimed invention. The scope of protection claimed by the appended claims and their equivalents is defined.

Claims

1. A diaphragm fatigue testing device, comprising a workbench (1), characterized in that: The top of the workbench (1) is provided with a clamping mechanism, a swing testing mechanism, a grinding mechanism, a debris absorption mechanism and a tensile testing mechanism; The clamping mechanism includes a U-shaped clamping groove (10) and an L-shaped clamping plate (8). The U-shaped clamping groove (10) is used to clamp the top of the partition, and the L-shaped clamping plate (8) is used to clamp the bottom of the partition. The grinding mechanism includes a telescopic plate (2). There are two telescopic plates (2). A first motor (3) is fixedly connected to one end of the outer side of one telescopic plate (2). The driving end of the first motor (3) is fixedly connected to the driving shaft B (37). A connecting pipe (29) and the driving shaft B (37) are rotatably connected to the two telescopic plates (2). A grinding roller (24) is fixedly connected between the connecting pipe (29) and the driving shaft B (37). The grinding roller (24) is used to grind one side of the partition to simulate the environment. The debris absorption mechanism includes absorption holes (25) formed on the grinding roller (24), which are used to absorb the debris generated during grinding. The swaying test mechanism is used to perform fatigue tests on the partition.

2. The partition fatigue testing device according to claim 1, characterized in that: The clamping mechanism includes bases (34) symmetrically fixedly connected to both sides of the top of the workbench (1), and sliding shafts (31) fixedly connected between the two sets of bases (34). It also includes two L-shaped clamps (8), each of which has a sliding groove (30) through it. The two sliding grooves (30) are respectively located on the outside of the two sliding shafts (31). Each of the two L-shaped clamps (8) is threaded with a fastening bolt (23). Each of the two L-shaped clamps (8) has a strain sensor (32) fixedly embedded on both sides of one end close to the other.

3. The partition fatigue testing device according to claim 2, characterized in that: The clamping mechanism also includes a U-shaped clamping groove (10), one end of which is threaded with an adjusting bolt (9), and one end of the adjusting bolt (9) is rotatably connected to a clamping block (33).

4. The partition fatigue testing device according to claim 1, characterized in that: The swing test mechanism includes a motor mounting box fixedly connected to one end of the workbench (1) via a horizontal plate. A right swing arm (15) is rotatably connected to one end of the motor mounting box. It also includes a left swing arm (7) rotatably connected to the other end of the workbench (1). Adjustment holes (14) are provided on both the left swing arm (7) and the right swing arm (15). Guide mounting shafts (13) are provided on the inner walls of the two adjustment holes (14). A cross frame (11) is fixedly connected between the two guide mounting shafts (13). The cross frame (11) is fixedly connected to the U-shaped clamping groove (10). The cross frame (11) is fixed to the left swing arm (7) and the right swing arm (15) by fixing bolts (12).

5. The diaphragm fatigue testing device according to claim 4, characterized in that: The swing test mechanism also includes a drive motor fixedly connected inside the motor mounting box. The drive end of the drive motor is fixedly connected to a drive spindle, and the other end of the drive spindle is fixedly connected to a crank (18). A connecting rod (16) is hinged on the crank (18). The connecting rod (16) is hinged to the right swing rod (15). One end of the right swing rod (15) is fixedly connected to a rotating shaft (36), and the rotating shaft (36) is rotatably connected to the motor mounting box.

6. The partition fatigue testing device according to claim 1, characterized in that: The grinding mechanism also includes fixed plates (6) symmetrically fixedly connected to the top of the workbench (1). Drive shafts A (26) are rotatably connected to both fixed plates (6). Telescopic sleeves (4) are fixedly connected to one end of each of the two drive shafts A (26) close to each other. Electric push rods (38) are fixedly connected to one side of the inner wall of each of the two telescopic sleeves (4). The telescopic ends of the two electric push rods (38) are fixedly connected to the two telescopic plates (2) respectively. A second motor (5) is fixedly connected to one end of the outer side of one fixed plate (6). The drive end of the second motor (5) is fixedly connected to a drive shaft A (26).

7. The partition fatigue testing device according to claim 1, characterized in that: The debris absorption mechanism also includes a fixed shaft (28) fixedly connected to one end of the telescopic plate (2) on the other side. A connecting block (27) is fixedly connected to the other end of the fixed shaft (28). The connecting block (27) and the connecting pipe (29) are rotatably connected. A hose (20) is fixedly connected to the other end of the connecting block (27). A collection box (21) is fixedly connected to the other end of the hose (20). The collection box (21) and the workbench (1) are fixedly connected. A fan (22) is fixedly connected to the front end of the workbench (1) on the side corresponding to the collection box (21). The fan (22) and the collection box (21) are fixedly connected.

8. The partition fatigue testing device according to claim 1, characterized in that: The tensile testing mechanism includes a fixed plate (42) fixedly connected to the inner wall of the workbench (1). A hydraulic rod (43) is fixedly connected to the middle of the top of the fixed plate (42). A lifting plate (41) is fixedly connected to the telescopic end of the hydraulic rod (43). Moving rods (40) are slidably connected to both sides of the top of the lifting plate (41). Fixed blocks (44) are fixedly connected to the inner side of the top of the lifting plate (41) corresponding to the moving rods (40). Electric cylinders (45) are fixedly connected to the two fixed blocks (44) at one end away from each other. The telescopic ends of the two electric cylinders (45) and the two moving rods (40) are fixedly connected respectively. Square holes (39) are provided on both sides of the top of the workbench (1). The two square holes (39) are respectively located on the outer side of the two moving rods (40).

9. A diaphragm fatigue testing device according to claim 8, characterized in that: The tensile testing mechanism also includes two clamping structures (35), each of which has a groove (19) at one end away from the other. A tension sensor (17) is fixedly connected to the inner wall of each of the two grooves (19), and the two tension sensors (17) and two moving rods (40) are fixedly connected to each other.

Images