Damper travel mount distance load testing machine

Abstract

This invention relates to the field of load testing technology and discloses a damper stroke installation distance load testing machine, comprising multiple uprights. The upper and lower ends of the multiple uprights are fixedly connected to the front side of the inner side of a working groove. Corresponding pressure plates are slidably connected to the outer walls of the multiple uprights. A pressure plate is fixedly connected to the bottom of the pressure plate, and a fixing component is provided on the front side of the pressure plate. Multiple base plates are fixedly connected to the bottom of the inner side of the working groove. Each base plate has a sliding groove on its top. A threaded rod is rotatably connected to the front side of the base plate. The rear end of the threaded rod passes through the sliding groove and is threadedly connected to a sliding block. By having an operator place the damper on the base plate and rotate the threaded rod to move the sliding block, the offset is limited by the limit block and the limit groove, so that the moving clamp and the U-shaped clamp clamp the damper. The air pump is started to push the push rod and the pressure plate to apply pressure, ensuring the stability of the damper load test and adapting to different testing requirements.

Description

Technical Field

[0001] This invention relates to the field of load testing technology, specifically to a damper stroke mounting distance load testing machine. Background Technology

[0002] A damper is a mechanical component that absorbs or dissipates energy to suppress vibration and reduce impact. It is widely used in construction, automobiles, and machinery. In construction, it can weaken structural vibration under earthquakes or strong winds and protect the building. In automobiles, it can alleviate bumps during driving and improve driving comfort. In machinery, it can reduce vibration and noise during equipment operation and extend the service life of the equipment. Its core effect is to convert kinetic energy into heat energy or other forms of energy through its own structural deformation or friction, thereby achieving vibration control and impact buffering.

[0003] The damper stroke installation distance load tester is a device specifically designed to test the performance of dampers. It mainly tests key indicators such as the damper's stroke range, installation distance adaptability, and load-bearing capacity. By simulating the stress state of the damper in actual working scenarios, it applies different loads and records the damper's mechanical response at different strokes, such as damping force and displacement changes. This provides a scientific basis for the quality inspection, performance optimization, and selection of dampers, and is an important testing tool to ensure the quality and safety of damper products.

[0004] While existing damper testing devices can clamp dampers with fixed fixtures and apply pressure to them using drive components to push pressure plates, achieving basic load testing and avoiding the problems of inaccurate data and low efficiency in manual testing, their pressure application mechanisms mostly adopt a fixed stroke design. The adjustment components can only change the pressure position manually by adjusting bolts, which cannot flexibly adjust the pressure intensity and stroke range according to the load requirements of different specifications of dampers. Furthermore, the lack of precise positioning and limiting structures means that when testing dampers with different load requirements, it is necessary to frequently change fixtures or adjust the entire device, making the operation cumbersome and difficult to adapt to diverse load testing needs, thus restricting testing efficiency and applicability. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a damper stroke installation distance load testing machine, which solves the problems of frequent fixture changes and overall device adjustments, cumbersome operation, and difficulty in adapting to diverse load testing needs.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solution: a damper stroke mounting distance load testing machine, including a cabinet frame, a working groove is provided on the front side of the cabinet frame, a testing mechanism is provided inside the working groove, and an adjustment mechanism is provided on the front side of the inside of the working groove, the adjustment mechanism being used to adjust the load test;

[0007] The testing mechanism includes multiple uprights, the upper and lower ends of which are fixedly connected to the front side of the inner side of the working groove. Corresponding pressure plates are slidably connected to the outer walls of the multiple uprights. A pressure plate is fixedly connected to the bottom of the pressure plate, and a fixing component is provided on the front side of the pressure plate. Multiple base plates are fixedly connected to the bottom of the inner side of the working groove. Each base plate has a sliding groove on its top. A threaded rod is rotatably connected to the front side of the base plate. The rear end of the threaded rod passes through the sliding groove and is threadedly connected to a sliding block. A limit component is provided inside the sliding groove. A U-shaped clamp is fixedly connected to the rear top of the base plate. A movable clamp is fixedly connected to the top of the sliding block. A reset mechanism is provided in the lower middle part of the outer wall of the upright.

[0008] Preferably, the adjustment mechanism includes an extension plate, the rear side of which is fixedly connected to the front left end of the pressure plate. A movable groove is provided at the bottom of the extension plate. An adjustment plate is fixedly connected to the front side of the inner part of the working groove. The outer wall of the adjustment plate is slidably connected to the inner side of the movable groove. Multiple adjustment grooves are provided on the left side of the adjustment plate. An adjustment block is slidably connected inside the adjustment groove. A positioning component is provided on the front side of the adjustment plate.

[0009] Preferably, the reset mechanism includes two fixing blocks. The inner sides of the two fixing blocks are fixedly connected to the lower middle part of the outer wall of the corresponding upright. A ring is fixedly connected to each adjacent side of the two uprights. A telescopic rod is fixedly connected to the top of each adjacent side of the two fixing blocks. The top ends of the two telescopic rods pass through the corresponding rings and are fixedly connected to the bottom left and right sides of the pressure plate. A support plate is fixedly connected to the bottom of the fixing blocks. The opposite sides of the two support plates are respectively fixedly connected to the adjacent sides of the uprights.

[0010] Preferably, the fixing component includes a fixing bolt, the rear end of which is slidably connected to the front side of the U-shaped frame, and a fixing groove is provided in the lower middle part of the front side of the U-shaped frame, with the fixing bolt slidably connected inside the fixing groove.

[0011] Preferably, the limiting component includes limiting blocks, with one side of each of the two limiting blocks fixedly connected to the left and right sides of the corresponding sliding block, and limiting grooves are provided on both the left and right sides of the sliding groove.

[0012] Preferably, the positioning component includes a fixing plate, the rear left end of which is fixedly connected to the front side of the adjusting plate. The front side of the fixing plate has multiple positioning grooves, and the front side of the adjusting block has a slot, with an insert block slidably connected inside the slot.

[0013] Preferably, multiple air pumps are fixedly connected to the top of the cabinet frame, and the output end of the air pump passes through the top of the cabinet frame and is fixedly connected to a push rod. The bottom of the multiple push rods respectively fits against the top of the corresponding pressure plate.

[0014] Preferably, the plurality of limiting blocks are slidably connected to the interior of the corresponding limiting groove, and the size of the limiting blocks and the limiting grooves are matched.

[0015] Preferably, baffles are fixedly connected to the left and right ends of the front side of the U-shaped clamp, and the rear sides of the two baffles are in contact with the front side of the movable clamp.

[0016] Preferably, the insert block is internally slidably connected to the positioning groove and the slot, and the adjustment groove corresponds one-to-one with the positioning groove.

[0017] This invention provides a damper stroke installation distance load testing machine. It has the following beneficial effects:

[0018] 1. This invention allows the operator to place the damper on the base plate, rotate the threaded rod to move the sliding block, and use the limit block and limit groove to limit the offset, so that the moving clamp and U-shaped clamp clamp the damper, and then fix it a second time with the fixing bolt. The air pump is started to push the push rod and pressure plate to apply pressure. After the test, the reset mechanism drives the pressure plate to reset, realizing the test cycle. The components work together throughout the process, which ensures the accuracy and stability of the damper load test and can also adapt to different test requirements.

[0019] 2. This invention allows the extension plate to slide along the adjustment plate, and the adjustment block to slide into different adjustment slots to change the limiting height of the extension plate. Then, the insertion block passes through the adjustment block slot and is inserted into the positioning slot of the fixing plate to fix the adjustment block, thereby realizing the adjustment and locking of the load test degree. It effectively adapts to the testing requirements of dampers of different specifications and ensures accurate and stable load adjustment.

[0020] 3. In this invention, the fixing block and the support plate are fixed to the upright, providing a stable foundation for the reset mechanism. The ring guides the telescopic rod. During reset, the telescopic rod extends upward, causing the pressure plate to slide along the upright. The ring restricts the trajectory of the telescopic rod, realizing the reset of the pressure plate and ensuring that the pressure plate resets smoothly, preparing for the next test and ensuring a smooth and efficient testing process. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a front view of the present invention;

[0023] Figure 3 This is a partial schematic diagram of the present invention;

[0024] Figure 4 This is an exploded view of the adjustment mechanism of the present invention;

[0025] Figure 5 for Figure 4 Enlarged view of point A in the image;

[0026] Figure 6 This is a partial exploded view of the fixing component of the present invention;

[0027] Figure 7 This is a partial exploded view of the base plate of the present invention;

[0028] Figure 8 For this Figure 7 Enlarged view of point B in the image.

[0029] The components are as follows: 1. Cabinet frame; 2. Testing mechanism; 21. Upright pole; 22. Pressure plate; 23. U-shaped frame; 24. Fixing component; 241. Fixing bolt; 242. Fixing groove; 25. Base plate; 26. Sliding groove; 27. Threaded rod; 28. Sliding block; 29. ​​Limiting component; 291. Limiting block; 292. Limiting groove; 210. U-shaped clamp; 211. Moving clamp; 3. Adjusting mechanism; 31. Extension plate; 32. Moving groove; 33. Adjusting plate; 34. Adjusting groove; 35. Adjusting block; 36. Positioning component; 361. Fixing plate; 362. Positioning groove; 363. Slot; 364. Insert block; 4. Reset mechanism; 41. Fixing block; 42. Ring; 43. Telescopic rod; 44. Support plate; 5. Working groove; 6. Air pump; 7. Push rod; 8. Baffle. Detailed Implementation

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1 , Figure 6 and Figure 7 This invention provides a damper stroke installation distance load testing machine, including a cabinet 1. The cabinet 1 can serve as the installation support base for all components of the machine, ensuring the overall structural stability of the equipment. A working slot 5 is provided on the front side of the cabinet 1. The working slot 5 can provide dedicated working space for each mechanism, avoiding external interference with the testing process. A testing mechanism 2 is provided inside the working slot 5. The testing mechanism 2 can realize the fixing and pressure testing of the damper. An adjustment mechanism 3 is provided on the front side of the inside of the working slot 5. The adjustment mechanism 3 is used to adjust the load testing degree and can adapt to the testing requirements of dampers of different specifications.

[0032] The testing mechanism 2 includes multiple uprights 21, which provide sliding guidance for the pressure plate 22 and limit its movement trajectory. The upper and lower ends of the multiple uprights 21 are fixedly connected to the front interior of the working groove 5, ensuring stable installation and preventing shaking during testing. Corresponding pressure plates 22 are slidably connected to the outer walls of the multiple uprights 21. The pressure plates 22 can move downwards to apply test pressure to the damper. A pressure plate 22 is fixedly connected to the bottom of the pressure plate 22, enhancing its pressure stability. A fixing component 24 is provided on the front side of the pressure plate 22, providing secondary fixation to the damper and preventing loosening during testing. Multiple base plates 25 are fixedly connected to the bottom interior of the working groove 5, providing a platform for the damper. Each base plate 25 has a sliding groove 26 on its top, which can function as a sliding block. 28 provides a moving space. The front side of the base plate 25 is rotatably connected to a threaded rod 27. When the threaded rod 27 rotates, it can drive the sliding block 28 to move back and forth. The rear end of the threaded rod 27 passes through the sliding groove 26 and is threadedly connected to the sliding block 28. The sliding block 28 can drive the moving clamping plate 211 to adjust its position. The sliding groove 26 is provided with a limit component 29. The limit component 29 can limit the moving direction of the sliding block 28 to avoid deviation. The top rear side of the base plate 25 is fixedly connected to a U-shaped clamping plate 210. The U-shaped clamping plate 210 can cooperate with the moving clamping plate 211 to clamp the damper. The top of the sliding block 28 is fixedly connected to the moving clamping plate 211. The moving clamping plate 211 can achieve initial clamping of the damper by moving. The lower middle part of the outer wall of the upright 21 is provided with a reset mechanism 4. The reset mechanism 4 can drive the pressure plate 22 to return to the initial position after the test.

[0033] The fixing component 24 includes a fixing bolt 241, which can be inserted into the fixing groove 242 to abut against the damper. The rear end of the fixing bolt 241 is slidably connected to the front side of the U-shaped frame 23 to ensure smooth movement of the fixing bolt 241. The lower middle part of the front side of the U-shaped frame 23 is provided with a fixing groove 242, which can provide a sliding channel for the fixing bolt 241. The fixing bolt 241 is slidably connected inside the fixing groove 242, which can realize the flexible insertion and removal of the fixing bolt 241.

[0034] The limiting component 29 includes a limiting block 291, which can slide along the limiting groove 292 to limit the offset of the sliding block 28. The adjacent sides of the two limiting blocks 291 are fixedly connected to the left and right sides of the corresponding sliding block 28, and can move synchronously with the sliding block 28. The sliding groove 26 has limiting grooves 292 on both the left and right sides inside. The limiting grooves 292 can provide sliding guidance for the limiting blocks 291. The top of the cabinet 1 is fixedly connected to multiple air pumps 6, which can generate power to provide driving force for the pressure plate 22 to press down. The output end of the air pump 6 passes through the top of the cabinet 1 and is fixedly connected to a push rod 7. The push rod 7 can transmit the power of the air pump 6 to the pressure plate 22. The bottom of the multiple push rods 7 respectively fits against the top of the corresponding pressure plate 22 to ensure that the pressure plate 22 is subjected to uniform force and avoid local pressure imbalance.

[0035] Specifically, the testing mechanism 2 is the core module for realizing workpiece testing. Multiple uprights 21 are fixedly connected at their upper and lower ends to the front side inside the working groove 5. They can provide sliding guidance for the pressure plate 22, limit the movement trajectory of the pressure plate 22 and prevent it from deviating, and also install the reset mechanism 4.

[0036] The pressure plate 22, which is slidably connected to the outer wall of multiple uprights 21, can move downward under the push of the push rod 7 to directly apply test pressure to the damper, simulating the actual load scenario. The U-shaped frame 23 fixed at the bottom of the pressure plate 22 can work with the fixing component 24 to strengthen the fixation of the workpiece.

[0037] In the fixing assembly 24 on the front side of the pressure plate 22, the fixing bolt 241 can slide along the fixing groove 242 in the lower middle part of the front side of the U-shaped frame 23, and its rear end is slidably connected to the front side of the U-shaped frame 23. After being inserted, it can abut against the damper. Multiple base plates 25 fixed at the bottom of the inner side of the working groove 5 can provide a platform for the damper. The sliding groove 26 opened on its top can provide moving space for the sliding block 28. The threaded rod 27 rotatably connected to the front side of the base plate 25 passes through the sliding groove 26 and is threadedly connected to the sliding block 28. When rotated, it can drive the sliding block 28 to move back and forth along the sliding groove 26, thereby adjusting the position of the moving clamp 211.

[0038] In the limiting component 29 inside the sliding groove 26, the limiting blocks 291 fixed on the left and right sides of the sliding block 28 slide in cooperation with the limiting grooves 292 opened on the left and right sides inside the sliding groove 26, which can limit the movement direction of the sliding block 28, prevent it from shifting left and right during movement, and ensure that the moving clamp 211 is accurately close to the U-shaped clamp 210.

[0039] The U-shaped clamp 210 fixed to the top rear side of the base plate 25 cooperates with the movable clamp 211 fixed to the top of the sliding block 28. Different specifications of dampers can be clamped by moving the movable clamp 211 to achieve preliminary mechanical fixation of the workpiece.

[0040] The reset mechanism 4, located in the lower middle part of the outer wall of the upright 21, can drive the pressure plate 22 to slide upward along the upright 21 after the test, so that the pressure plate 22 returns to its initial position and is ready for the next test. The adjustment mechanism 3 can realize the load test degree adjustment effect, and can adjust the downward stroke and pressure of the pressure plate 22 according to the test requirements of different dampers, adapting to various test scenarios;

[0041] Multiple air pumps 6 fixed at the top of the cabinet 1 serve as power source components. Their output ends pass through the top of the cabinet 1 and are fixedly connected to push rods 7, which can convert the power generated by the air pumps 6 into downward thrust, pushing the pressure plate 22 down to provide power support for pressure testing. Moreover, the multiple push rods 7 are respectively attached to the top of the corresponding pressure plate 22, which can ensure that the pressure plate 22 is subjected to uniform force and avoid test data deviation due to uneven local force.

[0042] Reference Figure 2 , Figure 4 and Figure 5 The adjusting mechanism 3 includes an extension plate 31, which can move synchronously with the pressure plate 22 to achieve power transmission. The rear side of the extension plate 31 is fixedly connected to the front left end of the pressure plate 22, ensuring a stable connection and synchronous movement between the extension plate 31 and the pressure plate 22. A moving groove 32 is provided at the bottom of the extension plate 31, which can cooperate with the adjusting plate 33 to provide a sliding channel for the extension plate 31. The adjusting plate 33 is fixedly connected to the front side of the interior of the working groove 5, and the adjusting plate 33 can provide guiding support for the sliding of the extension plate 31. The outer wall of the extension plate 31 is slidably connected to the inner side of the moving groove 32, which can ensure that the extension plate 31 slides smoothly along the adjustment plate 33 and avoids deviation. Multiple adjustment grooves 34 are provided on the left side of the adjustment plate 33. Multiple adjustment grooves 34 can provide multiple adjustment positions to meet different load test requirements. An adjustment block 35 is slidably connected inside the adjustment groove 34. The adjustment block 35 can change its position by sliding, which indirectly controls the downward stroke of the pressure plate 22. A positioning component 36 is provided on the front side of the adjustment plate 33. The positioning component 36 can fix the position of the adjustment block 35 to prevent displacement during testing.

[0043] The positioning component 36 includes a fixing plate 361, which serves as the mounting base for the positioning groove 362 to ensure the stability of the positioning structure. The rear left end of the fixing plate 361 is fixedly connected to the front side of the adjusting plate 33, enabling a stable connection between the fixing plate 361 and the adjusting plate 33. The front side of the fixing plate 361 has multiple positioning grooves 362, which can cooperate with the insert block 364 to provide a positioning point for the adjusting block 35. The front side of the adjusting block 35 has a slot 363, which provides an insertion channel for the insert block 364. The insert block 364 is slidably connected inside the slot 363, and the insert block 364 can pass through the slot 363 and be inserted into the positioning groove 362 to achieve precise positioning of the adjusting block 35.

[0044] Specifically, the extension plate 31 is fixedly connected to the left front end of the pressure plate 22 at its rear side, and can move synchronously with the pressure plate 22, serving as a power transmission and connection function, providing a linkage basis for adjustment actions. The moving groove 32 opened at its bottom is slidably connected to the outer wall of the adjustment plate 33 fixed at the front inside the working groove 5, which can both limit the movement trajectory of the extension plate 31 to avoid deviation and ensure that the extension plate 31 slides stably along the adjustment plate 33, providing guiding support for load adjustment. The multiple adjustment grooves 34 opened on the left side of the adjustment plate 33 are distributed at preset intervals, providing multiple adjustment positions to meet different load testing requirements. The sliding adjustment block 35 can change the limiting height of the extension plate 31 when it slides into different adjustment slots 34, indirectly controlling the downward stroke of the pressure plate 22 and realizing the initial adjustment of the load test degree. In the positioning component 36, the rear left end of the fixing plate 361 is fixed to the front side of the adjustment plate 33. Multiple positioning slots 362 on its front side correspond to the adjustment slots 34, providing positioning points for the insertion block 364. The slot 363 on the front side of the adjustment block 35 allows the insertion block 364 to slide into. The insertion block 364 passes through the slot 363 and is locked into the positioning slot 362, which can fix the position of the adjustment block 35, prevent displacement during testing, and realize precise locking of the load test degree.

[0045] Reference Figure 3 and Figure 6 The reset mechanism 4 includes two fixing blocks 41, which serve as the mounting base for the telescopic rod 43 and the support plate 44, ensuring the overall structural stability of the reset mechanism 4. The inner sides of the two fixing blocks 41 are fixedly connected to the lower middle part of the outer wall of the corresponding upright 21, achieving a stable connection between the fixing blocks 41 and the upright 21 and preventing displacement. A ring 42 is fixedly connected to each adjacent side of the two uprights 21, which guides the telescopic rod 43 and restricts its extension and retraction trajectory. A telescopic rod 43 is fixedly connected to the top of each adjacent side of the two fixing blocks 41. 43 can be elastically extended to reset the pressure plate 22. The top ends of the two telescopic rods 43 are passed through the corresponding rings 42 and fixedly connected to the bottom left and right sides of the pressure plate 22, which can ensure that the telescopic rods 43 and the pressure plate 22 move synchronously and the force is evenly distributed on the left and right. The bottom of the fixed block 41 is fixedly connected to the support plate 44. The support plate 44 can further strengthen the connection between the fixed block 41 and the upright 21 and enhance the support strength. The two support plates 44 are fixedly connected to the adjacent side of the upright 21 on opposite sides, which can allow the support plate 44 to play a stable supporting role and prevent the fixed block 41 from shaking due to force.

[0046] Specifically, the inner sides of the two fixing blocks 41 are fixedly connected to the lower middle part of the outer wall of the corresponding uprights 21, providing a stable installation base for the telescopic rods 43 and the support plate 44, ensuring the overall structural stability of the reset mechanism 4. The support plate 44, which is fixedly connected to the bottom of the fixing blocks 41, is fixedly connected to the adjacent side of the uprights 21 on the opposite side, which can further strengthen the connection between the fixing blocks 41 and the uprights 21, prevent the fixing blocks 41 from shifting during the reset process, and enhance the support strength of the mechanism. The circular rings 42, which are fixedly connected to the adjacent side of the two uprights 21, can guide the telescopic rods 43, limit the telescopic trajectory of the telescopic rods 43, and prevent them from deviating. The top of the telescopic rods 43, which are fixedly connected to the top of the adjacent side of the two fixing blocks 41, passes through the corresponding circular rings 42 and is fixedly connected to the bottom left and right sides of the pressure plate 22. After the test, the pressure plate 22 can be moved upward along the uprights 21 by its own elastic extension, realizing the reset of the pressure plate 22 and preparing for the next test. Moreover, the telescopic rods 43 on the left and right sides exert force synchronously, which can ensure that the pressure plate 22 is evenly stressed and moves smoothly when reset.

[0047] Reference Figure 4 , Figure 5 and Figure 8 Multiple limiting blocks 291 are slidably connected to the interior of corresponding limiting grooves 292, allowing the limiting blocks 291 to slide stably along the limiting grooves 292 and avoid deviation. The size of the limiting blocks 291 and the limiting grooves 292 are matched to ensure that they fit tightly and improve the limiting accuracy. The left and right ends of the front side of the U-shaped clamp 210 are fixedly connected to baffles 8, which can limit the forward movement range of the moving clamp 211 and prevent excessive movement. The rear sides of the two baffles 8 fit against the front side of the moving clamp 211, which can assist in clamping the damper and enhance the fixing effect. The insert 364 is slidably connected to the interior of the positioning groove 362 and the slot 363, which can realize the flexible insertion and removal of the insert 364 and quickly fix the adjusting block 35. The adjusting groove 34 corresponds one-to-one with the positioning groove 362, which can ensure that the position of the adjusting block 35 is accurately matched with the positioning point and ensure the accuracy of load adjustment.

[0048] Specifically, multiple limiting blocks 291 are slidably connected to the corresponding limiting grooves 292, and the two are matched in size. This can accurately limit the movement trajectory of the sliding block 28, prevent it from deviating, and ensure that the moving clamp 211 smoothly approaches the U-shaped clamp 210. The baffles 8 fixed at the left and right ends of the front side of the U-shaped clamp 210 are in contact with the front side of the moving clamp 211, which can limit the forward movement range of the moving clamp 211 and prevent excessive movement from damaging the workpiece. At the same time, it assists in clamping the damper. The insert block 364 is slidably connected to the positioning groove 362 and the slot 363, which can quickly insert the fixed adjustment block 35 to prevent displacement during testing. The adjustment groove 34 corresponds one-to-one with the positioning groove 362 to ensure that the position of the adjustment block 35 is accurately matched with the positioning point, so as to achieve accurate locking of the load test degree.

[0049] Working principle: The cabinet frame 1 serves as the overall support foundation. Its front working groove 5 supports the testing mechanism 2 and the adjustment mechanism 3. The adjustment mechanism 3 can adjust the load test degree as needed. Before testing, the operator places the damper on the top of the base plate 25 and rotates the threaded rod 27 on the front side of the base plate 25. The rear end of the threaded rod 27 passes through the sliding groove 26, which drives the threaded sliding block 28 to move along the sliding groove 26. The limiting blocks 291 on the left and right sides of the sliding block 28 slide along the limiting grooves 292 in the sliding groove 26. The limiting components 29 restrict the sliding block 28 from shifting, thereby pushing the moving clamp 211 on the top of the sliding block 28 closer to the U-shaped clamp 210 on the rear side of the base plate 25 to clamp the damper and complete the initial fixation. Then, the fixing bolt 241 is inserted along the fixing groove 242 on the front side of the U-shaped frame 23. The rear end of the fixing bolt 241 slides with the U-shaped frame 23. The damper is connected and the fixing component 24 achieves secondary fixation to prevent loosening. After the test is started, the air pump 6 at the top of the cabinet 1 works. Its output end passes through the cabinet 1 and pushes the push rod 7 down. The bottom of the push rod 7 is attached to the pressure plate 22, which drives the pressure plate 22 to slide down along the outer wall of the upright 21. The upper and lower ends of the upright 21 are fixed to the front side of the working groove 5 to guide the pressure plate 22 and ensure that the pressure is applied vertically. The pressure plate 22 moves down to apply pressure to the damper to simulate the load. The adjustment mechanism 3 controls the pressure and speed through preset parameters to adapt to different test requirements. After the test is completed, the air pump 6 is depressurized. The reset mechanism 4 in the lower part of the upright 21 drives the pressure plate 22 to slide up and reset. The reverse rotation of the threaded rod 27 makes the moving clamp 211 return to its position. The damper can be taken out by pulling out the fixing bolt 241, completing one test cycle. The entire process is ensured by the mechanical coordination of the components to ensure the accuracy and stability of the test.

[0050] Furthermore, a movable groove 32 is provided at the bottom of the extension plate 31, and an adjusting plate 33 is fixedly connected to the front side of the inner side of the working groove 5. The outer wall of the adjusting plate 33 is slidably connected to the inner side of the movable groove 32. This sliding fit not only restricts the movement trajectory of the extension plate 31 to prevent it from deviating, but also ensures that the extension plate 31 can slide stably along the adjusting plate 33, providing guiding support for subsequent load adjustment. Multiple adjusting grooves 34 are provided on the left side of the adjusting plate 33. The multiple adjusting grooves 34 are distributed at preset intervals, which can provide multiple adjustment positions according to different load test requirements. An adjusting block 35 is slidably connected inside the adjusting groove 34. By sliding the adjusting block 35 into the adjusting groove 34 at different positions, the limiting height of the adjusting block 35 on the extension plate 31 can be changed, thereby indirectly controlling the downward stroke of the pressure plate 22. To achieve the initial adjustment of the load test degree, a positioning component 36 is provided on the front side of the adjustment plate 33 to fix the position of the adjustment block 35. The left rear end of the fixing plate 361 in the positioning component 36 is fixedly connected to the front side of the adjustment plate 33. The front side of the fixing plate 361 has multiple positioning slots 362 corresponding to the adjustment slots 34. When the adjustment block 35 slides to the target adjustment slot 34, the insert block 364 is inserted along the slot 363 opened on the front side of the adjustment block 35, so that one end of the insert block 364 is locked into the positioning slot 362. Through the cooperation of the insert block 364, the slot 363, and the positioning slot 362, the position of the adjustment block 35 is firmly fixed to prevent the adjustment block 35 from shifting during the test. Finally, the load test degree is accurately locked to meet the load test requirements of dampers of different specifications.

[0051] The last two fixing blocks 41 serve as basic support components, with their inner sides fixedly connected to the lower middle part of the outer wall of the corresponding upright 21, providing a stable installation base for the entire reset mechanism 4. The support plate 44 fixedly connected to the bottom of the fixing block 41 is fixedly connected to the adjacent side of the upright 21 on the opposite side, further enhancing the connection stability between the fixing block 41 and the upright 21 and preventing the components from shifting during the reset process. The circular rings 42 fixedly connected to the adjacent side of the upright 21 provide a guiding function for the telescopic rod 43. The telescopic rod 43 fixedly connected to the top of the adjacent side of the fixing block 41 has its top end passing through the corresponding circular ring 42 and fixedly connected to the bottom left and right sides of the pressure plate 22. When reset is required, the telescopic rod 43 extends upward, and through the connection between its top end and the pressure plate 22, it drives the pressure plate 22 to slide upward along the upright 21. The circular ring 42 restricts the extension and retraction trajectory of the telescopic rod 43, ensuring that the pressure plate 22 is reset smoothly.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A damper stroke installation distance load testing machine, including a cabinet, characterized in that, The front side of the cabinet is provided with a working slot, the inside of the working slot is provided with a testing mechanism, and the front side of the inside of the working slot is provided with an adjustment mechanism, which is used to adjust the load test. The testing mechanism includes multiple uprights, the upper and lower ends of which are fixedly connected to the front side of the inner side of the working groove. Corresponding pressure plates are slidably connected to the outer walls of each upright. A pressure plate is fixedly connected to the bottom of each pressure plate, and a fixing component is provided on the front side of each pressure plate. Multiple base plates are fixedly connected to the bottom inner side of the working groove. Each base plate has a sliding groove on its top. A threaded rod is rotatably connected to the front side of each base plate. The rear end of the threaded rod passes through the sliding groove and is threadedly connected to a sliding block. A limit component is provided inside the sliding groove. A U-shaped clamp is fixedly connected to the rear top of each base plate. A movable clamp is fixedly connected to the top of each sliding block. A reset mechanism is provided in the lower middle part of the outer wall of each upright. The adjustment mechanism includes an extension plate, the rear side of which is fixedly connected to the left front end of the pressure plate. The bottom of the long plate has a movable groove. An adjusting plate is fixedly connected to the front side of the inner side of the working groove. The outer wall of the adjusting plate is slidably connected to the inner side of the movable groove. Multiple adjusting grooves are opened on the left side of the adjusting plate. Adjusting blocks are slidably connected inside the adjusting grooves. A positioning component is provided on the front side of the adjusting plate. The limiting component includes limiting blocks. The adjacent sides of two limiting blocks are fixedly connected to the left and right sides of the corresponding sliding blocks. Limiting grooves are opened on both the left and right sides of the inner side of the sliding groove. The positioning component includes a fixing plate. The rear left end of the fixing plate is fixedly connected to the front side of the adjusting plate. Multiple positioning grooves are opened on the front side of the fixing plate. A slot is opened on the front side of the adjusting block. An insert is slidably connected inside the slot. The insert is slidably connected to the positioning groove and the slot. The adjusting groove and the positioning groove correspond one-to-one.

2. The damper stroke installation distance load testing machine according to claim 1, characterized in that, The reset mechanism includes two fixing blocks. The inner sides of the two fixing blocks are fixedly connected to the lower middle part of the outer wall of the corresponding upright. A ring is fixedly connected to each adjacent side of the two uprights. A telescopic rod is fixedly connected to the top of each adjacent side of the two fixing blocks. The top ends of the two telescopic rods pass through the corresponding rings and are fixedly connected to the bottom left and right sides of the pressure plate. A support plate is fixedly connected to the bottom of the fixing blocks. The opposite sides of the two support plates are respectively fixedly connected to the adjacent sides of the uprights.

3. The damper stroke installation distance load testing machine according to claim 1, characterized in that, The fixing component includes a fixing bolt, the rear end of which is slidably connected to the front side of the U-shaped frame. A fixing groove is provided in the lower middle part of the front side of the U-shaped frame, and the fixing bolt is slidably connected inside the fixing groove.

4. The damper stroke installation distance load testing machine according to claim 1, characterized in that, Multiple air pumps are fixedly connected to the top of the cabinet frame. The output end of the air pump passes through the top of the cabinet frame and is fixedly connected to a push rod. The bottom of each push rod is respectively attached to the top of the corresponding pressure plate.

5. The damper stroke installation distance load testing machine according to claim 1, characterized in that, The plurality of limiting blocks are slidably connected to the interior of the corresponding limiting grooves, and the size of the limiting blocks and the limiting grooves are matched.

6. The damper stroke installation distance load testing machine according to claim 1, characterized in that, The front left and right ends of the U-shaped clamp are fixedly connected with baffles, and the rear sides of the two baffles are in contact with the front side of the movable clamp.

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