Nitrogen spring service life detection equipment

Abstract

The utility model discloses service life detection equipment for a nitrogen spring, and relates to the technical field of nitrogen spring detection. The device comprises a box body, wherein one side of the top of the box body is fixedly connected with a shell; a detection assembly is arranged in the shell and comprises a limiting rod, a moving plate is slidably connected to the surface of the limiting rod, a pressing plate is fixedly connected to the bottom of the moving plate, and a placement plate is fixedly connected to the bottom of an inner cavity of the shell; a heating assembly is arranged on one side of an inner cavity of the shell and comprises an air suction box, and the air suction box is arranged on one side of the inner cavity of the shell. According to the utility model, the transmission motor works to drive the transmission rod to rotate so as to drive the circular plate to rotate, the circular plate drives the sliding rod to rotate, the sliding rod drives the movable plate to move, the movable plate drives the vertical plate to move, the vertical plate drives the pressing plate to move, the pressing plate carries out an extrusion test on the nitrogen spring, and the service life of the nitrogen spring under repeated extrusion can be detected.

Description

Technical Field

[0001] This utility model belongs to the field of nitrogen spring testing technology, and in particular relates to a nitrogen spring life testing device. Background Technology

[0002] Nitrogen spring life testing equipment: mainly used to simulate the working conditions of the spring body in actual use. By repeatedly loading, compressing and releasing the spring body, it evaluates its performance changes and fatigue life during long-term use. These devices can detect the durability, sealing, gas leakage, elasticity changes, etc. of nitrogen springs under different working environments, help determine whether the spring body meets the design life requirements, and discover potential failure hazards in advance, thereby improving the reliability and safety of the product.

[0003] Most existing nitrogen spring life testing equipment cannot test the durability of nitrogen springs under high-temperature environments. This results in test results that do not accurately reflect the actual performance of the spring under high-temperature conditions, and may thus underestimate its failure risk in extreme working environments. Therefore, we provide a nitrogen spring life testing device to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of this invention is to provide a life testing device for nitrogen springs. By combining the testing component and the heating component, it solves the problem that existing nitrogen spring life testing devices cannot test the durability of nitrogen springs under high-temperature environments.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to a life testing device for nitrogen springs, comprising a housing, with an outer shell fixedly connected to one side of the top of the housing; a testing component is disposed inside the outer shell, the testing component including a limiting rod, a movable plate slidably connected to the surface of the limiting rod, a pressing plate fixedly connected to the bottom of the movable plate, and a placement plate fixedly connected to the bottom of the inner cavity of the outer shell; a heating component is disposed on one side of the inner cavity of the outer shell, the heating component including a suction box, the suction box being disposed on one side of the inner cavity of the outer shell, heating plates fixedly connected to both sides of the inner wall of the suction box, a suction pipe connected to the top of the suction box, and an exhaust pipe connected to the top of one side of the suction box.

[0007] The present invention is further configured such that a drive motor is fixedly connected to the top of one side of the inner wall of the outer shell, a drive rod is fixedly connected to the output end of the drive motor, a circular plate is fixedly connected to one end of the drive rod, a slide rod is fixedly connected to the top of one side of the circular plate, a vertical plate is fixedly connected to the top of the movable plate, a movable plate is fixedly connected to the top of the vertical plate, and the slide rod is slidably connected inside the movable plate.

[0008] The present invention is further configured such that a first pulley is fixedly connected to one side of the transmission rod surface, a rotating rod is rotatably connected to one side of the inner wall of the outer casing, a second pulley is fixedly connected to one side of the rotating rod surface, a cam is fixedly connected to the rotating rod surface, mounting plates are fixedly connected to both sides of the inner wall of the suction box, a vertical rod is fixedly connected to the bottom of the mounting plate, a piston plate is slidably connected to the surface of the vertical rod, a push plate is fixedly connected to the bottom of the piston plate, and a spring body is sleeved on the top of the surface of the vertical rod.

[0009] The present invention is further configured such that a first one-way valve is provided at the bottom of the surface of the air inhalation pipe, and a second one-way valve is provided at the top of the surface of the air outlet pipe.

[0010] The present invention is further configured such that a sliding groove is provided inside the movable plate, and the sliding rod is slidably connected inside the sliding groove.

[0011] The present invention is further configured such that a controller is fixedly connected to one side of the top of the housing, and the controller is electrically connected to the drive motor via a connecting wire.

[0012] The present invention is further configured such that a door is movably connected to one side of the outer shell via a hinge, an observation slot is provided inside the door, and an observation window is fixedly connected inside the observation slot.

[0013] The present invention is further configured such that a limiting plate is fixedly connected to one side of the suction box, and the vertical plate is slidably connected inside the limiting plate.

[0014] The present invention has the following beneficial effects.

[0015] 1. This utility model uses a drive motor to rotate a drive rod, which in turn rotates a circular plate. The circular plate rotates a sliding rod, which in turn moves a movable plate. The movable plate moves a vertical plate, which in turn moves a pressing plate. The pressing plate then performs a compression test on the nitrogen spring, which can be used to test its service life under repeated compression.

[0016] 2. This utility model can also drive the first pulley to rotate by rotating the transmission rod. The first pulley drives the second pulley to rotate via a belt. The second pulley drives the rotating rod to rotate. The rotating rod drives the cam to rotate. When the cam contacts the push plate, the push plate will drive the piston plate to move. When the piston plate moves, it will squeeze the spring body. When the cam separates from the push plate, the spring body will reset the piston plate through its own elasticity, thereby drawing outside air into the suction box. Then, after being heated by the heating plate, it is blown onto the nitrogen spring. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0018] Figure 1 This is a three-dimensional view of a nitrogen spring life testing device.

[0019] Figure 2 This is a schematic diagram of the internal structure of the outer shell in a nitrogen spring life testing device.

[0020] Figure 3 This is a schematic diagram of the testing component in a nitrogen spring life testing device.

[0021] Figure 4 This is a schematic diagram of the internal structure of the suction box in a nitrogen spring life testing device.

[0022] Figure 5 This is a schematic diagram of the detection component and heating component in a nitrogen spring life testing device.

[0023] In the attached diagram: 1. Box body; 2. Outer shell; 3. Limiting rod; 4. Moving plate; 5. Pressing plate; 6. Suction box; 7. Heating plate; 8. Suction pipe; 9. Exhaust pipe; 10. Drive motor; 11. Drive rod; 12. Circular plate; 13. Slide rod; 14. Vertical plate; 15. Movable plate; 16. First pulley; 17. Second pulley; 18. Cam; 19. Vertical rod; 20. Piston plate; 21. Push plate; 22. Spring body; 23. First one-way valve; 24. Second one-way valve; 25. Rotating rod; 26. Limiting plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be described below with reference to the accompanying drawings. The described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1

[0026] Please see Figure 1-5 This utility model is a life testing device for nitrogen springs, including a housing 1, with an outer shell 2 fixedly connected to one side of the top of the housing 1; a testing component is set inside the outer shell 2, the testing component includes a limiting rod 3, a moving plate 4 is slidably connected to the surface of the limiting rod 3, a pressing plate 5 is fixedly connected to the bottom of the moving plate 4, and a placement plate is fixedly connected to the bottom of the inner cavity of the outer shell 2; a heating component is set on one side of the inner cavity of the outer shell 2, the heating component includes a suction box 6, the suction box 6 is set on one side of the inner cavity of the outer shell 2, heating plates 7 are fixedly connected to both sides of the inner wall of the suction box 6, a suction pipe 8 is connected to the top of the suction box 6, and an exhaust pipe 9 is connected to the top of one side of the suction box 6.

[0027] Specifically: the outer shell 2 can hold the detection components, there are four limiting rods 3, all symmetrically fixed on both sides of the inner cavity of the outer shell 2, the suction box 6 has fixed plates fixedly connected to both sides, one side of the fixed plate is fixedly connected to the inner wall of the outer shell 2, the placement plate can easily place the nitrogen spring, and the heating plate 7 can heat the intake air, which is convenient for subsequent detection work.

[0028] Example 2

[0029] Please see Figure 1-5 Based on Embodiment 1, a drive motor 10 is fixedly connected to the top of one side of the inner wall of the outer casing 2. A drive rod 11 is fixedly connected to the output end of the drive motor 10. A circular plate 12 is fixedly connected to one end of the drive rod 11. A slide rod 13 is fixedly connected to the top of one side of the circular plate 12. A vertical plate 14 is fixedly connected to the top of the movable plate 4. A movable plate 15 is fixedly connected to the top of the vertical plate 14. The slide rod 13 is slidably connected inside the movable plate 15. A first pulley 16 is fixedly connected to one side of the surface of the drive rod 11. A rotating rod 25 is rotatably connected to one side of the inner wall of the outer casing 2. A second pulley 17 is fixedly connected to one side of the surface of the rotating rod 25. A cam 18 is fixedly connected to the surface of the rotating rod 25. Mounting plates are fixedly connected to both sides of the inner wall of the suction box 6. The bottom of the mounting plates is fixedly connected to... A vertical rod 19 is attached, and a piston plate 20 is slidably connected to the surface of the vertical rod 19. A push plate 21 is fixedly connected to the bottom of the piston plate 20. A spring body 22 is sleeved on the top of the surface of the vertical rod 19. A first one-way valve 23 is set on the bottom of the surface of the air intake pipe 8. A second one-way valve 24 is set on the top of the surface of the air outlet pipe 9. A sliding groove is opened inside the movable plate 15. A sliding rod 13 is slidably connected inside the sliding groove. A controller is fixedly connected to one side of the top of the box 1. The controller is electrically connected to the drive motor 10 through a connecting wire. A box door is movably connected to one side of the outer shell 2 through a hinge. An observation groove is opened inside the box door. An observation window is fixedly connected inside the observation groove. A limit plate 26 is fixedly connected to one side of the air intake box 6. A vertical plate 14 is slidably connected inside the limit plate 26.

[0030] Specifically: A support plate is fixedly connected to one side of the suction box 6. The transmission rod 11 is rotatably connected to the inside of the support plate through a bearing. The support plate can fix the transmission rod 11 to prevent vibration and other problems during operation. The first pulley 16 and the second pulley 17 are both connected by belt drive. The two ends of the spring body 22 are fixedly connected to the bottom of the mounting plate and the top of the piston plate 20, respectively. The first one-way valve 23 and the second one-way valve 24 can control the air flow direction. The controller can control the start and stop of the transmission motor 10. The observation window can facilitate the observation of the detection situation. The limit plate 26 can limit the vertical plate 14 to prevent it from deviating during movement.

[0031] The working principle of this utility model is as follows: When it is necessary to test the nitrogen spring, the user starts the transmission motor 10 through the controller. The transmission motor 10 drives the transmission rod 11 to rotate, which in turn drives the circular plate 12 to rotate. The circular plate 12 drives the slide rod 13 to rotate, which drives the movable plate 15 to move. The movable plate 15 drives the vertical plate 14 to move, which drives the pressing plate 5 to move. The pressing plate 5 performs a compression test on the nitrogen spring to test the service life of the nitrogen spring under repeated compression.

[0032] Furthermore, the transmission rod 11 can also drive the first pulley 16 to rotate. The first pulley 16 drives the second pulley 17 to rotate via a belt. The second pulley 17 drives the rotating rod 25 to rotate. The rotating rod 25 drives the cam 18 to rotate. When the cam 18 contacts the push plate 21, the push plate 21 will drive the piston plate 20 to move. When the piston plate 20 moves, it will squeeze the spring body 22. At the same time, the first one-way valve 23 closes and the second one-way valve 24 opens. Then, the air inside the suction box 6 is blown to the surface of the nitrogen spring through the air outlet pipe 9. When the cam 18 separates from the push plate 21, the spring body 22 will reset the piston plate 20 through its own elasticity. At the same time, the first one-way valve 23 opens and the second one-way valve 24 closes. Then, the outside air will be sucked into the suction box 6 through the air intake pipe 8 and stored after being heated by the heating plate 7. This process is repeated to achieve the purpose of reciprocating piston. Furthermore, by simulating high temperature environment and compression test, the service life and durability of nitrogen spring can be evaluated more accurately, especially its performance under high temperature and high frequency load conditions.

[0033] All standard parts used in this invention can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through the control unit. The control circuit of the control unit can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, the control method and circuit connection will not be explained in detail in this invention.

[0034] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific implementation methods described. The present specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the art can better understand and utilize the present utility model.

Claims

1. A life detection device for nitrogen gas springs, comprising a box (1), characterized in that: The shell (2) is fixedly connected to one side of the top of the box body (1); The detection assembly is arranged in the shell (2), and the detection assembly comprises a limiting rod (3), the limiting rod (3) is slidably connected to the surface of the limiting rod (3), the bottom of the moving plate (4) is fixedly connected to the pressing plate (5), and the bottom of the shell (2) is fixedly connected to the placing plate. The heating assembly is arranged on one side of the inner cavity of the shell (2), the heating assembly comprises a suction box (6), the suction box (6) is arranged on one side of the inner cavity of the shell (2), the inner wall of the suction box (6) is fixedly connected to the heating plate (7) on both sides, the top of the suction box (6) is communicated with the air suction pipe (8), and the top of one side of the suction box (6) is communicated with the air outlet pipe (9).

2. The nitrogen gas spring life detection device according to claim 1, characterized by: The transmission motor (10) is fixedly connected to the top of one side of the inner wall of the shell (2), the output end of the transmission motor (10) is fixedly connected to the transmission rod (11), one end of the transmission rod (11) is fixedly connected to the circular plate (12), the top of one side of the circular plate (12) is fixedly connected to the sliding rod (13), the top of one side of the circular plate (12) is fixedly connected to the sliding rod (13), the top of one side of the circular plate (12) is fixedly connected to the sliding rod (13), the top of one side of the circular plate (12) is fixedly connected to the sliding rod (13), and the top of one side of the circular plate (12) is fixedly connected to the sliding rod (13).

3. The device for detecting the life of a nitrogen gas spring according to claim 2, characterized by: The first belt pulley (16) is fixedly connected to one side of the surface of the transmission rod (11), the second belt pulley (17) is rotatably connected to one side of the inner wall of the shell (2), the second belt pulley (17) is fixedly connected to one side of the surface of the rotating rod (25), the rotating rod (25) is fixedly connected to the cam (18) on the surface, the inner wall of the suction box (6) is fixedly connected to the mounting plate on both sides, the bottom of the mounting plate is fixedly connected to the vertical rod (19), the surface of the vertical rod (19) is slidably connected to the piston plate (20), the bottom of the piston plate (20) is fixedly connected to the push plate (21), and the surface of the vertical rod (19) is sleeved with the spring body (22) at the top.

4. The device for detecting the life of a nitrogen gas spring according to claim 1, wherein: The first one-way valve (23) is arranged on the surface of the bottom of the air suction pipe (8), and the second one-way valve (24) is arranged on the surface of the top of the air outlet pipe (9).

5. The device for detecting the life of a nitrogen gas spring according to claim 2, characterized by: The sliding groove is formed in the inner part of the movable plate (15), and the sliding rod (13) is slidably connected to the inner part of the sliding groove.

6. The device for detecting the life of a nitrogen gas spring according to claim 1, wherein: The controller is fixedly connected to one side of the top of the box body (1), and the controller is electrically connected with the transmission motor (10) through the connecting line.

7. The device for detecting the life of a nitrogen gas spring according to claim 1, wherein: The shell (2) is hingedly connected to the box door on one side, the observation slot is formed in the inner part of the box door, and the observation window is fixedly connected to the inner part of the observation slot.

8. The device for detecting the life of a nitrogen gas spring according to claim 2, characterized by: The limiting plate (26) is fixedly connected to one side of the suction box (6), and the vertical plate (14) is slidably connected to the inner part of the limiting plate (26).

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