Gas spring durability test bench
By designing a fully automated gas spring durability testing bench, and using a motor drive mechanism and counterweights to simulate actual usage conditions, the problem of existing equipment being unable to accurately test the durability of gas springs has been solved, achieving efficient and accurate durability assessment.
Patent Information
- Application Number
- CN202520220191.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Existing gas spring durability testing equipment cannot effectively simulate actual usage conditions, resulting in significant deviations in test results. This is especially true for high-end customers such as automotive OEMs and medical device manufacturers, where it fails to meet durability requirements.
A gas spring durability test bench was designed. It adopts fully automatic mechanical equipment, which drives the rotating shaft and the flip plate through the motor transmission mechanism to simulate the movement of the gas spring in the X, Y and Z axis directions. Combined with the counterweight to adjust the gravity, it realizes the all-round durability test of the gas spring.
It has achieved automated testing of gas spring durability, reduced testing costs, improved testing efficiency, and can accurately simulate the actual usage conditions of customers, overcoming the inability of existing equipment to simulate the impact effect of gravitational acceleration.
Smart Images
Figure CN223756300U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to gas spring test technical field especially relates to a gas spring endurance test bench. BACKGROUND
[0002] The use of gas springs is currently very popular, and the rationality of the design of the gas spring structure and the rationality of the layout of the use of the gas spring will have a direct impact on the normal use and use cycle of the gas spring. Facing high-end customers, such as automobile manufacturers, high-end custom home furnishing industries, medical equipment industries, etc., they have more and more use scenarios for gas springs, and the requirements for the use of gas springs are also getting higher and higher. Not only should the overall ergonomics be operable, but also the durability of the product under various working conditions should be higher.
[0003] Therefore, an equipment capable of testing the durability of gas springs is needed. UTILITY MODEL CONTENTS
[0004] The utility model discloses a gas spring endurance test bench, which comprises a main frame, a motor transmission mechanism is fixed on the top of the main frame, both ends of the rotating shaft are fixed on the top of the main frame through a support seat;
[0005] The outer periphery of the rotating shaft is movably connected with an upper turning plate and a lower turning plate through bearings, the bottom of the upper turning plate is provided with an upper sliding plate, and the bottom surface of the upper sliding plate is provided with an upper fixed point;
[0006] The front side of the lower turning plate is provided with a lower sliding plate, the front side of the lower sliding plate is provided with a lower fixed point, and the upper fixed point and the lower fixed point are respectively fixed at both ends of the gas spring;
[0007] The outer periphery of the rotating shaft is provided with a driving arm driven to rotate by the motor transmission mechanism, the driving arm comprises an integrally formed upper lifting arm and a lower pressing arm, the upper lifting arm drives the upper turning plate to rotate in the lifting direction, so that the gas spring is stretched, and the lower pressing arm drives the upper turning plate to rotate in the pressing direction, so that the gas spring is compressed.
[0008] Further, the driving end of the upper lifting arm and the lower pressing arm is movably connected with a roller for driving the upper turning plate to rotate without sliding friction.
[0009] Further, the front side of the upper turning plate is provided with a counterweight for adjusting gravity, the counterweight is slidably connected with the upper turning plate through a slide rail, and the gravity center of the upper turning plate is adjusted through the sliding of the counterweight.
[0010] Further, the bottom end of the lower turning plate is provided with a buffer block, the main frame is fixed with a lower turning plate adjusting rod for driving the lower turning plate to rotate on the rotating shaft, and the buffer block is adjusted forward and backward relative to the main frame through the lower turning plate adjusting rod.
[0011] Further, the upper slide plate is in sliding connection with the upper turning plate, and the lower slide plate is in sliding connection with the lower turning plate.
[0012] Further, the fixed point of the gas spring is adjusted in left and right, up and down and front and back directions through the track of the slide plate, the sliding connection between the upper slide plate and the upper turning plate, the sliding connection between the lower slide plate and the lower turning plate and the lower turning plate adjusting rod.
[0013] Compared with the prior art, the utility model has the beneficial effects mainly shown in the following:
[0014] 1. The utility model provides a kind of gas spring endurance test bench, realize the test of gas spring endurance, and do not need manual operation, completely adopt mechanical equipment full automation test, reduce test cost, improve test efficiency.
[0015] 2. The utility model optimizes installation point, so that the freedom of installation point reaches maximum, can be adjusted in X, Y, Z axis direction, and the durability of gas spring in simulated real vehicle installation position can be tested.
[0016] 3. The utility model test bench can effectively simulate the actual use state of customer, and the gravity work of counterweight block can overcome the impact effect caused by the fact that the existing test equipment cannot simulate gravity acceleration. DRAWINGS
[0017] Figure 1 It is the structure schematic view of the first visual angle of the utility model a kind of gas spring endurance test bench.
[0018] Figure 2 It is the structure schematic view of the second visual angle of the utility model a kind of gas spring endurance test bench.
[0019] Wherein, 1, main frame;2, motor transmission mechanism;3, rotating shaft;4, support seat;5, upper turning plate;6, down pressure arm;7, upper lifting arm;8, roller;9, upper slide plate;10, upper fixed point;11, lower slide plate;12, lower fixed point;13, lower turning plate;14, buffer block;15, lower turning plate adjustment;16, counterweight block. DETAILED DESCRIPTION
[0020] The utility model a kind of gas spring endurance test bench will be described in more detail below, wherein the preferred embodiment of the utility model is indicated, it should be understood that the utility model described herein can be modified by those skilled in the art, and still realize the beneficial effects of the utility model, therefore, the following description should be understood as extensive knowledge for those skilled in the art, and not as the limitation of the utility model.
[0021] AsFigure 1 and 2 As shown in the figure, a gas spring endurance test bench comprises a main frame 1, a motor drive mechanism 2 is fixed on the top of the main frame 1, a rotating shaft 3 is connected to the motor drive mechanism 2, and the two ends of the rotating shaft 3 are fixed to the top of the main frame 1 through support seats 4. An upper turning plate 5 and a lower turning plate 13 are movably connected to the outer periphery of the rotating shaft 3 through bearings, the bottom side of the upper turning plate 5 is slidably connected to an upper sliding plate 9, and the bottom surface of the upper sliding plate 9 is provided with an upper fixed point 10. The front side of the lower turning plate 13 is provided with a lower sliding plate 11, the front side of the lower sliding plate 11 is provided with a lower fixed point 12, and the upper fixed point 10 and the lower fixed point 12 are respectively fixed to the two ends of the gas spring. The outer periphery of the rotating shaft 3 is rotationally fixed with a driving arm driven to rotate by the motor drive mechanism 2, the driving arm comprises an integrally formed upper lifting arm 7 and a lower pressing arm 6, the upper lifting arm 7 drives the upper turning plate 5 to rotate in the lifting direction, so that the gas spring is stretched; the lower pressing arm 6 drives the upper turning plate 5 to rotate in the pressing direction, so that the gas spring is compressed, and the repeated rotation of the rotating shaft 3 by the motor drive mechanism 2 can realize the endurance test of the gas spring.
[0022] At present, there are also gas spring endurance verification devices on the market, which are divided into linear endurance devices and rotary endurance devices. The linear device lacks simulation of the actual layout of the product, because of the lack of lateral force and the simulation of the swing deviation state of the product in the actual movement process, so the test process cannot simulate the real situation of the used scene, and the test result is greatly deviated. The rotary device can reproduce the real state of the actual layout, although it can also make the product rotate and swing, but due to the difference between the installation point and the load point (simulated gravity center), the test process cannot simulate the real situation of the used scene, and the test result is greatly deviated.
[0023] The following will take the automobile tail door as an example to describe the test bench in more detail.
[0024] The above structure remains unchanged, the upper turning plate 5 is used as the automobile tail door, and the lower turning plate 13 is used as the vehicle body bottom plate. On this basis, the upper fixed point 10 and the lower fixed point 12 are respectively moved in the horizontal direction on the upper sliding plate 8 and the lower sliding plate 11 through the track, the lower sliding plate 11 is slidably connected to the lower turning plate 13, and then the lower fixed point 12 can slide vertically on the lower sliding plate 11, the back side of the lower turning plate 13 is fixed with a lower turning plate adjusting rod 15 matched with the main frame 1, the lower turning plate 13 can be lifted and lowered based on the rotating shaft 23 through the lower turning plate adjusting rod 15, and then the lower fixed point 12 can move in the front-back direction through the lower turning plate 13.
[0025] A counterweight 16 is fixed to the front side of the upper turning plate 5, and the counterweight 16 can move vertically on the upper turning plate 5 through the track to simulate the door weight of the automobile tail door and adjust the tail door gravity and gravity center.
[0026] The bottom end front side of the downward turning plate 13 is provided with a buffer block 14, which can move forward and backward based on the downward turning plate adjusting rod 15, so as to realize the forward and backward adjustment of the closing point position of the automobile tail door.
[0027] The end of the lifting arm 7 and the pressing arm 6 is movably fixed with a roller 8 towards the side of the upward turning plate 5, the roller 8 can rotate, and through the rotation of the roller 8, the upward turning plate 5 is pushed to rotate without sliding friction marks.
[0028] The motor driving mechanism 2 drives the lifting arm 7 and the pressing arm 6 to act on the upward turning plate 5, so as to simulate the various stroke angles of the various applied forces of the actual vehicle door opening and closing.
[0029] Specifically, the gas spring is installed on the fixed point of the downward turning plate. In the test of the upward turning plate doing work, when the upward turning plate is lifted, the initial stroke is driven by the lifting arm, and after reaching a certain balance point, the lifting arm is quickly separated, and the gas spring rotates to do work. When the downward turning plate is pressed, the initial stroke is driven by the pressing arm, and after reaching a certain balance point, the pressing arm is quickly separated, and the gravity of the lifting arm overcomes the extension force of the gas spring to rotate to do work.
[0030] The difference between the utility model and the existing test equipment is shown in Table 1:
[0031]
[0032] Table 1
[0033] The actual operation process of the automobile tail door opening and closing is that when opening, the tail door is manually lifted to a certain angle, and then the tail door is automatically lifted to a predetermined angle; when closing, the tail door is manually pressed to a certain angle, and then the tail door is automatically lowered to the closing point.
[0034] In the utility model, the motor driving mechanism 2 includes a servo motor, the output end of the servo motor is connected with the transmission gear of the driving arm integrally rotating and fixed on the outer periphery of the rotating shaft through a transmission chain, the servo motor drives the transmission gear to rotate through the transmission chain, and then drives the lifting arm 7 and the pressing arm 6 to rotate at a directional angle.
[0035] The above is only the preferred embodiment of the utility model, and does not limit the utility model. Any person skilled in the art can make any form of equivalent replacement or modification of the technical scheme and technical content disclosed by the utility model without departing from the technical scheme of the utility model, and the modified utility model still belongs to the protection scope of the utility model.
Claims
1. A gas spring endurance test bench, characterized in that, Including main frame, the top of main frame is fixed with motor drive mechanism, both ends of rotating shaft are fixed to the top of main frame through support seat; The outer periphery of rotating shaft is movably connected with upper turnover plate and lower turnover plate through bearing, the bottom of upper turnover plate is equipped with upper sliding plate, the bottom surface of upper sliding plate is equipped with upper fixed point; The front side of lower turnover plate is equipped with lower sliding plate, the front side of lower sliding plate is equipped with lower fixed point, the both ends of air spring are fixed with upper fixed point and lower fixed point respectively; The outer periphery of rotating shaft is equipped with driving arm driven to rotate through motor drive mechanism, the driving arm includes integrally formed upper lifting arm and lower pressing arm, the upper lifting arm drives upper turnover plate to rotate in lifting direction, so that air spring is stretched; The lower pressing arm drives upper turnover plate to rotate in pressing direction, so that air spring is compressed.
2. The air spring durability test bench of claim 1, wherein, The end of driving end of upper lifting arm and lower pressing arm is movably connected with roller for driving upper turnover plate to rotate without generating sliding friction.
3. The air spring durability test stand of claim 1, wherein, The front side of upper turnover plate is equipped with counterweight for adjusting gravity, the counterweight is slidably connected with upper turnover plate through slide rail, the gravity center of upper turnover plate is adjusted through sliding of counterweight.
4. The air spring durability test bench of claim 3, wherein, The bottom end of front side of lower turnover plate is equipped with buffer block, the main frame is fixed with lower turnover plate adjusting rod for driving lower turnover plate to rotate based on rotating shaft, the buffer block is adjusted forward and backward relative to main frame through lower turnover plate adjusting rod.
5. The air spring durability test stand of claim 4, wherein, The upper sliding plate is slidably connected with upper turnover plate, the lower sliding plate is slidably connected with lower turnover plate, the both ends of air spring are adjusted left and right, up and down and forward and backward through its own track on sliding plate, sliding connection of upper sliding plate and upper turnover plate, sliding connection of lower sliding plate and lower turnover plate and lower turnover plate adjusting rod.
6. The air spring durability test stand of claim 5, wherein, The both ends of air spring are adjusted left and right, up and down and forward and backward through its own track on sliding plate, sliding connection of upper sliding plate and upper turnover plate, sliding connection of lower sliding plate and lower turnover plate and lower turnover plate adjusting rod.