Fatigue test device
By designing a fatigue testing device including a base, a base, an adjustment structure, a clamp, a slider, a worm gear and a worm, the problem of poor testing and clamping of existing devices at different temperatures is solved, and stable clamping and accurate testing of rubber material samples is achieved.
Patent Information
- Application Number
- CN202421880838.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-06
AI Technical Summary
The existing rubber material fatigue testing devices are not convenient for testing at different temperatures, and the fixtures have poor clamping of the samples, resulting in inaccurate test results.
A fatigue testing device including a base, a base, an adjustment structure, a clamp, a slider, a worm gear and a worm are designed. Through the cooperation of the bidirectional screw and the worm gear, stable clamping of rubber material samples is achieved, and testing is achieved at different temperatures through the servo motor and heating rod.
The device can stably clamp rubber material samples at different temperatures, improve the accuracy of test results, and solve the shortcomings of existing devices in terms of temperature and clamping.
Smart Images
Figure CN222979325U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rubber material fatigue, in particular to a fatigue test device. Background Technique
[0002] Rubber materials are key functional materials for dampers and shock absorbers. Their fatigue performance is directly related to the fatigue life of the dampers or shock absorbers composed of them. Improving the fatigue performance of rubber materials is the main method to improve the fatigue life of the dampers or shock absorbers composed of them. Therefore, a fatigue test device for rubber materials is needed to evaluate the fatigue performance of rubber materials.
[0003] The existing rubber material fatigue test devices are not convenient for testing at different temperatures. At the same time, the clamps of the existing test devices have poor clamping of the specimens, and the specimens are prone to slip off from the clamps, resulting in inaccurate test results. For this reason, we propose a fatigue test device. Content of the Utility Model
[0004] Aiming at the deficiencies of the prior art, the utility model provides a fatigue test device, which solves the problems put forward in the above background technique.
[0005] To achieve the above purposes, the utility model is realized through the following technical solutions: A fatigue test device, including a base, two pedestals are arranged on the top of the base, adjustment structures are arranged on one side of the two pedestals close to each other. The adjustment structure includes a bidirectional lead screw, the bidirectional lead screw is rotationally connected to the pedestal, two sliders are threadedly connected to the outside of the bidirectional lead screw, clamping plates are fixedly installed on one side of the two sliders respectively, the two clamping plates and the sliders are all slidably connected to the pedestal, a worm wheel and a worm are rotationally connected inside the pedestal, the worm wheel and the worm are meshed, the worm wheel is fixedly connected to the bidirectional lead screw, a turning handle is fixedly installed on one side of the worm, the turning handle passes through the top of the pedestal and is rotationally connected to it, a first servo motor is inlaid on the top of the base, and the output end of the first servo motor is fixedly connected to one of the pedestals.
[0006] Preferably, moving blocks are fixedly installed on the corresponding two sides of the other pedestal, a second servo motor is fixedly installed inside the base, the output end of the second servo motor is fixedly installed with a threaded rod, the threaded rod passes through the top of the base and is rotationally connected to it, and the threaded rod penetrates through one of the moving blocks and is threadedly connected to it. By setting the second servo motor to drive, the moving block on the outside of the threaded rod moves longitudinally, so as to adjust the position of the other pedestal.
[0007] Preferably, a guide rod is fixedly installed on the top of the base. The guide rod passes through the other moving block and is slidably connected thereto. Limit plates are fixedly installed at the tops of both the threaded rod and the guide rod. The cooperation of the provided guide rod and the limit plate restricts the longitudinal movement position of the other base.
[0008] Preferably, limit blocks are fixedly installed on both sides of the bottom of one of the bases corresponding to the first servo motor. Both of the limit blocks are inserted into the base and are slidably connected thereto. The provided limit blocks make one of the bases more stable when rotating.
[0009] Preferably, a side plate is fixedly installed on the top of the base. A clamping plate is arranged on one side of the side plate. The clamping plate is inserted into the base and the side plate and is slidably connected thereto. A top plate is arranged on the top of the side plate. The side plate and the clamping plate are inserted into the top plate and are slidably connected thereto. Fixing plates are fixedly installed on both corresponding sides of the side plate. Connecting plates are arranged on the tops of both of the fixing plates. Both of the connecting plates are fixedly connected to the top plate. Fixing bolts are arranged on the tops of both of the connecting plates. The fixing bolts pass through the connecting plates and are threadedly connected thereto. The fixing bolts are inserted into the fixing plates and are threadedly connected thereto. A plurality of heating rods are embedded on one side of the side plate close to the clamping plate. The provided fixing bolts fixedly connect the fixing plates and the connecting plates, thereby combining the side plate, the clamping plate and the top plate. Further, the temperature of the sealed space is heated by the provided plurality of heating rods, which is convenient for testing the rubber material specimen at different temperatures.
[0010] Preferably, a controller is embedded on one side of the base. The controller is electrically connected to the first servo motor, the second servo motor and the heating rods. Support legs are fixedly installed at the four corners of the bottom of the base. The equipment on the device is controlled by the controller.
[0011] The present utility model provides a fatigue test device, which has the following beneficial effects:
[0012] For this fatigue test device, by rotating two turning hands to move the position of the clamping plate, the clamping and fixing of the rubber material specimen are realized. At the same time, a V-shaped clamping groove is arranged on the side where two adjacent clamping plates are close to each other, and longitudinal friction lines are provided. Further, the worm and the worm gear have a self-locking property, thereby increasing the friction force between the clamping plate and the rubber material specimen and making the clamping of the rubber material more stable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present utility model;
[0014] Figure 2 is a schematic diagram of the adjustment structure of the present utility model;
[0015] Figure 3 is a schematic diagram of a partial structure of the present utility model;
[0016] Figure 4 is a front sectional view of the present utility model;
[0017] Figure 5 is a side sectional view of the present utility model.
[0018] In the figure: 1, base; 2, pedestal; 3, clamping plate; 4, slider; 5, bidirectional lead screw; 6, worm gear; 7, worm; 8, turning handle; 9, first servo motor; 10, limit block; 11, second servo motor; 12, threaded rod; 13, guide rod; 14, limit plate; 15, moving block; 16, side plate; 17, clamping plate; 18, top plate; 19, fixing plate; 20, connecting plate; 21, fixing bolt; 22, heating rod; 23, controller. Specific embodiments
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.
[0020] Please refer to Figures 1 to 5 , the present utility model provides a technical solution: a fatigue test device, including a base 1, two pedestals 2 are arranged on the top of the base 1, adjusting structures are arranged on one side of the two pedestals 2 close to each other, the adjusting structure includes a bidirectional lead screw 5, the bidirectional lead screw 5 is rotatably connected to the pedestal 2, two sliders 4 are threadedly connected to the outside of the bidirectional lead screw 5, clamping plates 3 are fixedly installed on one side of the two sliders 4, the two clamping plates 3 and the sliders 4 are all slidably connected to the pedestal 2, a worm gear 6 and a worm 7 are rotatably connected inside the pedestal 2, the worm gear 6 and the worm 7 are meshed, the worm gear 6 is fixedly connected to the bidirectional lead screw 5, a turning handle 8 is fixedly installed on one side of the worm 7, the turning handle 8 passes through the top of the pedestal 2 and is rotatably connected thereto, a first servo motor 9 is embedded in the top of the base 1, and the output end of the first servo motor 9 is fixedly connected to one of the pedestals 2.
[0021] Moving blocks 15 are fixedly installed on the corresponding two sides of the other pedestal 2, a second servo motor 11 is fixedly installed inside the base 1, the output end of the second servo motor 11 is fixedly installed with a threaded rod 12, the threaded rod 12 passes through the top of the base 1 and is rotatably connected thereto, the threaded rod 12 penetrates through one of the moving blocks 15 and is threadedly connected thereto. By driving the second servo motor 11, the moving block 15 on the outside of the threaded rod 12 moves longitudinally, so as to adjust the position of the other pedestal 2, stretch the rubber material sample, and detect its fatigue performance.
[0022] A guide rod 13 is fixedly installed at the top of the base 1. The guide rod 13 penetrates through another moving block 15 and is slidably connected thereto. Limit plates 14 are fixedly installed at the tops of both the threaded rod 12 and the guide rod 13. By the cooperation of the provided guide rod 13 and the limit plate 14, the position of the longitudinal movement of the other base 2 is restricted. At the bottom of one of the bases 2 and on the corresponding two sides of the first servo motor 9, limit blocks 10 are fixedly installed. Both of the two limit blocks 10 are inserted into the interior of the base 1 and are slidably connected thereto. By the provided limit blocks 10, one of the bases 2 is more stable when rotating.
[0023] A side plate 16 is fixedly installed at the top of the base 1. A clamping plate 17 is arranged on one side of the side plate 16. The clamping plate 17 is inserted into the interior of the base 1 and the side plate 16 and is slidably connected thereto. A top plate 18 is arranged at the top of the side plate 16. Both the side plate 16 and the clamping plate 17 are inserted into the interior of the top plate 18 and are slidably connected thereto. Fixing plates 19 are fixedly installed on the corresponding two sides of the side plate 16. Connection plates 20 are arranged at the tops of both of the two fixing plates 19. Both of the two connection plates 20 are fixedly connected to the top plate 18. Fixing bolts 21 are arranged at the tops of both of the two connection plates 20. The fixing bolts 21 penetrate through the connection plates 20 and are threadedly connected thereto. The fixing bolts 21 are inserted into the interior of the fixing plates 19 and are threadedly connected thereto. A number of heating rods 22 are inlaid on one side of the side plate 16 close to the clamping plate 17. By the provided fixing bolts 21, the fixing plates 19 and the connection plates 20 are fixedly connected, so that the side plate 16, the clamping plate 17 and the top plate 18 are combined. Further, the temperature of the sealed space is heated by the provided number of heating rods 22, which is convenient for testing the rubber material sample at different temperatures. A controller 23 is inlaid on one side of the base 1. The controller 23 is electrically connected to the first servo motor 9, the second servo motor 11 and the heating rods 22. Legs are fixedly installed at the four corners of the bottom of the base 1. The equipment on the device is controlled by the controller 23, and at the same time, the device is supported by the provided legs.
[0024] In summary, when using this fatigue test device, by placing the rubber material sample between two adjacent clamping plates 3 arranged at the tops of the two bases 2, manually rotating the two turning handles 8 makes the two sliders 4 on the outer sides of the two bidirectional lead screws 5 move towards or away from each other, and further, by moving the position of the clamping plates 3, the clamping and fixing of the rubber material sample are realized. At the same time, a V-shaped clamping groove is arranged on the side of two adjacent clamping plates 3 close to each other, and longitudinal friction lines are provided, so as to increase the friction force between the clamping plates 3 and the rubber material sample, making the clamping of the rubber material more stable.
[0025] Meanwhile, the second servo motor 11 is driven to make the moving block 15 outside the threaded rod 12 move longitudinally, so as to adjust the position of the other base 2, stretch the rubber material sample, and detect its fatigue performance. Further, the first servo motor 9 is driven to make one of the bases 2 rotate to test the torsional fatigue performance of the rubber material sample. Further, the clamping plate 17 is inserted into the inside of the base 1, and the fixing bolts 21 are used to fixedly connect the fixing plate 19 and the connecting plate 20, so as to combine the side plate 16, the clamping plate 17 and the top plate 18. Further, a number of heating rods 22 are provided to heat the temperature of the sealed space, which is convenient for testing the rubber material sample at different temperatures. At the same time, a sealing gasket is provided at the bottom of the top plate 18 to further improve the sealing performance of the device. At the same time, heat dissipation holes are provided on the device to cooperate with the first servo motor 9 and the second servo motor 11, so as to prevent the first servo motor 9 and the second servo motor 11 from being damaged due to overheating during operation as much as possible.
[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.
Claims
1. A fatigue testing device, comprising a base (1), characterized in that: Two bases (2) are arranged on the top of the base (1), and an adjustment structure is arranged on the side of the two bases (2) close to each other, wherein the adjustment structure comprises a bidirectional screw (5), wherein the bidirectional screw (5) is rotatably connected to the base (2), and the outer side of the bidirectional screw (5) is threadedly connected to two sliders (4), and a clamping plate (3) is fixedly installed on one side of the two sliders (4), and the two clamping plates (3) and the sliders (4) are slidably connected to the base (2), and a worm wheel (6) and a worm (7) are rotatably connected inside the base (2), and the worm wheel (6) and the worm (7) are meshed, and the worm wheel (6) is fixedly connected to the bidirectional screw (5), and a hand (8) is fixedly installed on one side of the worm (7), and the hand (8) passes through the top of the base (2) and is rotatably connected thereto, and a first servo motor (9) is inlaid on the top of the base (1), and the output end of the first servo motor (9) is fixedly connected to one of the bases (2).
2. A fatigue testing device according to claim 1, characterized in that: The other base (2) is fixedly mounted with moving blocks (15) on both corresponding sides, a second servo motor (11) is fixedly mounted inside the base (1), a threaded rod (12) is fixedly mounted on the output end of the second servo motor (11), the threaded rod (12) passes through the top of the base (1) and is rotatably connected thereto, and the threaded rod (12) passes through one of the moving blocks (15) and is threadedly connected thereto.
3. A fatigue testing device according to claim 2, characterized in that: A guide rod (13) is fixedly mounted on the top of the base (1), and the guide rod (13) passes through another moving block (15) and is slidably connected thereto. A limiting plate (14) is fixedly mounted on the top of both the threaded rod (12) and the guide rod (13).
4. A fatigue testing device according to claim 1, characterized in that: Limit blocks (10) are fixedly installed at the bottom of one of the bases (2) and on the corresponding two sides of the first servo motor (9), and the two limit blocks (10) are inserted into the interior of the base (1) and are slidably connected thereto.
5. A fatigue testing device according to claim 1, characterized in that: A side plate (16) is fixedly mounted on the top of the base (1), a card plate (17) is arranged on one side of the side plate (16), the card plate (17) is inserted into the interior of the base (1) and the side plate (16) and is slidably connected thereto, a top plate (18) is arranged on the top of the side plate (16), the side plate (16) and the card plate (17) are both inserted into the interior of the top plate (18) and are slidably connected thereto, and a fixing plate (19) is fixedly mounted on the corresponding two sides of the side plate (16), and two A connecting plate (20) is provided on the top of each of the fixing plates (19), and the two connecting plates (20) are fixedly connected to the top plate (18). A fixing bolt (21) is provided on the top of each of the two connecting plates (20), and the fixing bolt (21) passes through the connecting plate (20) and is threadedly connected thereto. The fixing bolt (21) is inserted into the interior of the fixing plate (19) and is threadedly connected thereto. A plurality of heating rods (22) are embedded on one side of the side plate (16) close to the clamping plate (17).
6. A fatigue testing device according to claim 1, characterized in that: A controller (23) is embedded on one side of the base (1), and the controller (23) is electrically connected to the first servo motor (9), the second servo motor (11) and the heating rod (22). Support legs are fixedly installed at the four corners of the bottom of the base (1).