A wave spring fatigue test workbench and use method thereof

Abstract

The present invention relates to a wave spring fatigue test workbench and a method for using the same, belonging to the technical field of test workbenches, including a device base, a protective cover, an upper support plate, a lower support plate, a positioning bar, and a positioning screw. Four protective covers are provided, and the four protective covers are respectively installed on the top of the device base. The four protective covers are provided with support vertical poles, an upper connecting ring, an upper support plate, a lower support plate, a lower connecting ring, a limit tube, and a threaded tube. The tops of the four protective covers are fixedly connected to an air inlet box and a humidifier. In the present invention, positioning and telescopic tests can be performed on wave springs of different diameters, and different working environments can be simulated, which is convenient for staff to control variables to perform multi-item fatigue tests, and the service life of the wave spring at different temperatures and humidity can be detected, with a more comprehensive test effect.

Description

Technical Field

[0001] The invention relates to the technical field of test workbenches, and in particular to a wave spring fatigue test workbench and a use method thereof. Background Art

[0002] Wave springs are elastic elements with several peaks and valleys on a thin metal ring. They are usually used in applications where the load and deformation are not large, the spring stiffness is small, and axial preload is required. Wave springs are particularly suitable for applications that require weight reduction and applications that are restricted by small installation space. Typical application areas include: aerospace, precision machinery, hydraulic seals, and high-end motors.

[0003] When designing and manufacturing wave springs, it is necessary to perform fatigue testing on the finished wave springs. The existing fatigue testing workbench is usually composed of a workbench, a hydraulic component and a fixed component. The wave spring can be pulled to extend and retract for fatigue testing. However, the function of such a fatigue testing workbench is relatively single. The use environment of the wave spring is diverse, such as temperature and humidity. In order to further improve the testing function, a wave spring fatigue testing workbench and a method of using the same are proposed. The workbench can perform positioning and extension tests on wave springs of different diameters and can simulate different working environments, making it easier for staff to control variables for multi-project fatigue testing. The workbench can detect the service life of the wave spring at different temperatures and humidity levels, and has a more comprehensive testing effect. Summary of the invention

[0004] The present invention provides a wave spring fatigue test workbench and a method for using the same, which solves the problems raised by the above-mentioned existing background technology, can perform positioning and extension tests on wave springs of different diameters, and can simulate different working environments, making it convenient for staff to control variables to perform multi-item fatigue tests. The service life of the wave spring at different temperatures and humidity can be detected, and a more comprehensive test effect can be achieved.

[0005] The solution of the present invention to solve the above technical problems is as follows: a wave spring fatigue test workbench and a method of using the same, comprising a device base, a protective cover, an upper support plate, a lower support plate, a positioning bar, and a positioning screw. Four protective covers are provided, and the four protective covers are respectively installed on the top of the device base. The four protective covers are each provided with a supporting upright pole, an upper connecting ring, an upper support plate, a lower support plate, a lower connecting ring, a limiting cylinder, and a threaded cylinder. The tops of the four protective covers are each fixedly connected to an air inlet box and a humidifier. A hydraulic cylinder is fixedly installed on the inner wall of the device base. The device base is fixedly connected to the supporting upright pole. Both sides of the upper support plate are fixedly connected to an upper connecting ring. The upper connecting ring is connected to the supporting upright by bolts, both sides of the lower supporting plate are fixedly connected with the lower connecting ring, the lower connecting ring is slidably connected to the supporting upright, the driving end of the hydraulic cylinder is connected to the lower supporting plate by bolts, the upper supporting plate and the lower supporting plate are fixedly connected with the limited position cylinder and the threaded cylinder, both sides of the positioning strip are fixedly connected with the positioning ring, the positioning screw passes through the positioning ring and is threadedly connected with the threaded cylinder, the inner wall of the air inlet box is fixedly installed with an electric heater, both sides of the inner wall of the air inlet box are fixedly connected with ventilation scoops, the air inlet box is fixedly connected with a fan, the protective cover is installed with a temperature and humidity detector, and the protective cover is provided with a sealing door;

[0006] The method of use includes the following steps:

[0007] S1: Positioning the wave spring. Adjust the height of the upper support plate according to the length of the wave spring. The upper connecting ring of the upper support plate slides on the outer wall of the supporting pole. After the adjustment is completed, position it with bolts. Place the two ends of the wave spring in the limiting cylinders of the upper support plate and the lower support plate respectively. Two positioning strips are provided on each side to pass through the wave spring. After the positioning ring is aligned with the threaded cylinder, the positioning screw is passed through the positioning ring and threadedly connected with the threaded cylinder, so that the two ends of the wave spring are positioned at the upper support plate and the lower support plate respectively.

[0008] S2: Adjust the test environment, start the fan to let the outside air into the bellows, the ventilation scoop guides the air, the electric heater heats the passing air, and the heated air is passed into the protective cover, so that the environmental temperature of the protective cover can be adjusted, and the fatigue life of the wave spring under different temperature conditions can be simulated. The humidifier can be started to pass humid gas, so that the environmental humidity of the protective cover can be adjusted, and the fatigue life of the wave spring under different humidity conditions can be simulated. The temperature and humidity detector monitors the environment, which is convenient for the staff to control the variables for fatigue testing. The fatigue life of the wave spring at different temperatures and the same humidity or the same temperature and different humidity can be tested, and the high temperature and humidity resistance of the wave spring can be tested;

[0009] S3: Start the hydraulic cylinder to drive the lower connecting ring of the lower support plate to slide on the outer wall of the supporting pole, so that the upper support plate and the lower support plate reciprocate to extend and retract the wave spring, thereby testing the fatigue life of the wave spring.

[0010] Based on the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the protective cover is made of tempered glass, and the gap between the protective cover and the device base is sealed by sealant.

[0012] Furthermore, the top of the support pole is threadedly connected with an anti-drop cap.

[0013] Furthermore, the threaded cylinder is provided with two corresponding limiting cylinders, which are respectively installed on both sides of the limiting cylinder.

[0014] Furthermore, the support uprights are evenly provided with bolt holes, and the upper connecting rings are provided with through holes corresponding to the bolt holes.

[0015] Furthermore, the device base is provided with an inspection door.

[0016] The beneficial effects of the present invention are as follows: the present invention provides a wave spring fatigue test workbench and a method for using the same, which have the following advantages:

[0017] The two ends of the wave spring are placed in the limiting cylinders of the upper support plate and the lower support plate respectively. Two positioning strips are arranged on each side to pass through the wave spring. After the positioning ring is aligned with the threaded cylinder, the positioning screw is passed through the positioning ring and threadedly connected with the threaded cylinder, so that the two ends of the wave spring are respectively positioned at the upper support plate and the lower support plate. Such a test workbench can be used for positioning wave springs of different diameters and lengths, and has good applicability.

[0018] Start the fan to let the outside air into the bellows, the ventilation scoop guides the air, the electric heater heats the passing air, and the heated air is passed into the protective cover, so that the environmental temperature of the protective cover can be adjusted, and the fatigue life of the wave spring under different temperature conditions can be simulated. Start the humidifier to pass humid gas, so that the environmental humidity of the protective cover can be adjusted, and the fatigue life of the wave spring under different humidity conditions can be simulated;

[0019] The temperature and humidity detector monitors the environment, making it easier for the staff to control the variables for fatigue testing. It can test the fatigue life of the wave spring at different temperatures and the same humidity or at the same temperature and different humidity, and can test the high temperature and humidity resistance of the wave spring.

[0020] Such a wave spring fatigue test workbench can perform positioning and extension tests on wave springs of different diameters, and can simulate different working environments, making it easier for staff to control variables and conduct multi-item fatigue tests. It can detect the service life of wave springs at different temperatures and humidity levels, and has a more comprehensive testing effect.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The specific implementation of the present invention is given in detail by the following embodiments and their accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0023] Figure 1 A structural schematic diagram of a wave spring fatigue test workbench and a method for using the same provided in one embodiment of the present invention;

[0024] Figure 2 A front view of a wave spring fatigue test bench and a method for using the same provided in one embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the structure inside a protective cover of a wave spring fatigue test workbench and a method for using the same provided in one embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the structure of a positioning bar in a wave spring fatigue test workbench and a method for using the same provided in one embodiment of the present invention, viewed from a top view;

[0027] Figure 5 A structural schematic diagram of a lower support plate in a wave spring fatigue testing workbench and a method for using the same provided in one embodiment of the present invention.

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. Device base; 2. Protective cover; 3. Hydraulic cylinder; 4. Support pole; 5. Upper connecting ring; 6. Anti-drop cap; 7. Upper support plate; 8. Lower support plate; 9. Lower connecting ring; 10. Limit cylinder; 11. Threaded cylinder; 12. Positioning strip; 13. Positioning ring; 14. Positioning screw; 15. Air inlet box; 16. Humidifier; 17. Electric heater; 18. Ventilation hopper; 19. Fan; 20. Temperature and humidity detector; 21. Sealing door; 22. Bolt hole; 23. Inspection door. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-5 The principles and features of the present invention are described, and the examples are only used to explain the present invention and are not used to limit the scope of the present invention. In the following paragraphs, the present invention is described in more detail by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0031] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0033] like Figure 1-5As shown, the present invention provides a wave spring fatigue test workbench and a method for using the same, comprising a device base 1, a protective cover 2, an upper support plate 7, a lower support plate 8, a positioning bar 12, and a positioning screw 14. Four protective covers 2 are provided, and the four protective covers 2 are respectively installed on the top of the device base 1. The four protective covers 2 are each provided with a supporting upright pole 4, an upper connecting ring 5, an upper support plate 7, a lower support plate 8, a lower connecting ring 9, a limiting cylinder 10, and a threaded cylinder 11. The tops of the four protective covers 2 are each fixedly connected with an air inlet box 15 and a humidifier 16. A hydraulic cylinder 3 is fixedly installed on the inner wall of the device base 1. The device base 1 is fixedly connected to the supporting upright pole 4. Both sides of the upper support plate 7 are fixedly connected with an upper connecting ring 5. The ring 5 is connected to the supporting upright 4 by bolts, and the lower connecting rings 9 are fixedly connected to the two sides of the lower supporting plate 8, and the lower connecting rings 9 are slidably connected to the supporting upright 4. The driving end of the hydraulic cylinder 3 is connected to the lower supporting plate 8 by bolts, and the upper supporting plate 7 and the lower supporting plate 8 are fixedly connected to the limited position cylinder 10 and the threaded cylinder 11. The positioning rings 13 are fixedly connected to the two sides of the positioning bar 12, and the positioning screws 14 pass through the positioning rings 13 and are threadedly connected to the threaded cylinder 11. An electric heater 17 is fixedly installed on the inner wall of the air inlet box 15, and ventilation scoops 18 are fixedly connected to the two sides of the inner wall of the air inlet box 15. The air inlet box 15 is fixedly connected to the fan 19, and the protective cover 2 is equipped with a temperature and humidity detector 20, and the protective cover 2 is provided with a sealing door 21.

[0034] Preferably, the protective cover 2 is made of tempered glass, and the gap between the protective cover 2 and the device base 1 is sealed by a sealant.

[0035] Preferably, the top of the support pole 4 is threadedly connected with an anti-drop cap 6 .

[0036] Preferably, two threaded cylinders 11 are provided corresponding to the limiting cylinder 10 and are respectively installed on both sides of the limiting cylinder 10 .

[0037] Preferably, the support poles 4 are evenly provided with bolt holes 22 , and the upper connecting ring 5 is provided with through holes corresponding to the bolt holes 22 .

[0038] Preferably, the device base 1 is provided with an inspection door 23 .

[0039] The specific working principle and use method of the present invention are:

[0040] S1: Positioning the wave spring, adjusting the height of the upper support plate 7 according to the length of the wave spring, the upper connecting ring 5 of the upper support plate 7 slides on the outer wall of the supporting upright 4, and after the adjustment is completed, the wave spring is positioned by bolts, and the two ends of the wave spring are respectively placed in the limiting tubes 10 of the upper support plate 7 and the lower support plate 8, and two positioning strips 12 are provided on each side to pass through the wave spring, and after the positioning ring 13 is aligned with the threaded tube 11, the positioning screw 14 is passed through the positioning ring 13 and the threaded tube 11 is threadedly connected, so that the two ends of the wave spring are respectively positioned at the upper support plate 7 and the lower support plate 8;

[0041] S2: Adjust the test environment, start the fan 19 to pass the outside air into the bellows 15, the ventilation scoop 18 guides the air, the electric heater 17 heats the passing air, and the heated air is passed into the protective cover 2, so that the environmental temperature of the protective cover 2 can be adjusted, and the fatigue life of the wave spring under different temperature conditions can be simulated. The humidifier 16 can be started to pass humid gas, so that the environmental humidity of the protective cover 2 can be adjusted, and the fatigue life of the wave spring under different humidity conditions can be simulated. The temperature and humidity detector 20 monitors the environment, which is convenient for the staff to control the variables for fatigue testing, and the fatigue life of the wave spring at different temperatures and the same humidity or the same temperature and different humidity can be tested. The high temperature and humidity resistance of the wave spring can be tested;

[0042] S3: Start the hydraulic cylinder 3 to drive the lower connecting ring 9 of the lower support plate 8 to slide on the outer wall of the supporting pole 4, so that the upper support plate 7 and the lower support plate 8 reciprocate to stretch and retract the wave spring, thereby testing the fatigue life of the wave spring.

[0043] It should be noted that, in this document, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Contents not described in detail in this specification belong to the prior art known to professionals in the field.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A wave spring fatigue test workbench, comprising a device base (1), a protective cover (2), an upper support plate (7), a lower support plate (8), a positioning bar (12), and a positioning screw (14), characterized in that: Four protective covers (2) are provided. The four protective covers (2) are respectively mounted on the top of the device base (1). The four protective covers (2) are each provided with a support pole (4), an upper connecting ring (5), an upper support plate (7), a lower support plate (8), a lower connecting ring (9), a limiting cylinder (10) and a threaded cylinder (11). The tops of the four protective covers (2) are each fixedly connected to an air inlet box (15) and a humidifier (16). A hydraulic cylinder (3) is fixedly mounted on the inner wall of the device base (1). The device base (1) is fixedly connected to the support pole (4). Both sides of the upper support plate (7) are fixedly connected to the upper connecting ring (5). The upper connecting ring (5) is connected to the support pole (4) by bolts. Both sides of the lower support plate (8) are fixedly connected to the lower connecting ring ( 9), the lower connecting ring (9) is slidably connected to the supporting upright (4), the driving end of the hydraulic cylinder (3) is connected to the lower supporting plate (8) by bolts, the upper supporting plate (7) and the lower supporting plate (8) are fixedly connected to the limiting cylinder (10) and the threaded cylinder (11), both sides of the positioning strip (12) are fixedly connected to the positioning ring (13), the positioning screw (14) passes through the positioning ring (13) and is threadedly connected to the threaded cylinder (11), the inner wall of the air inlet box (15) is fixedly installed with an electric heater (17), both sides of the inner wall of the air inlet box (15) are fixedly connected to the ventilation scoop (18), the air inlet box (15) is fixedly connected to the fan (19), the protective cover (2) is installed with a temperature and humidity detector (20), and the protective cover (2) is provided with a sealing door (21); The method of use includes the following steps: S1: Positioning the wave spring, adjusting the height of the upper support plate (7) according to the length of the wave spring, the upper connecting ring (5) of the upper support plate (7) slides on the outer wall of the supporting upright (4), and after the adjustment is completed, the wave spring is positioned by bolts, and the two ends of the wave spring are respectively placed in the limiting tubes (10) of the upper support plate (7) and the lower support plate (8), and two positioning strips (12) are provided on each side to pass through the wave spring. After the positioning ring (13) is aligned with the threaded tube (11), the positioning screw (14) is passed through the positioning ring (13) and the threaded tube (11) is threadedly connected, so that the two ends of the wave spring are respectively positioned at the upper support plate (7) and the lower support plate (8); S2: adjusting the test environment, starting the fan (19) to pass the outside air into the bellows (15), the ventilation scoop (18) guides the air, the electric heater (17) heats the passing air, and the heated air is passed into the protective cover (2), thereby adjusting the environmental temperature of the protective cover (2), and simulating the fatigue life of the wave spring under different temperature conditions, starting the humidifier (16) to pass humid gas, thereby adjusting the environmental humidity of the protective cover (2), and simulating the fatigue life of the wave spring under different humidity conditions, and the temperature and humidity detector (20) monitors the environment, so that the staff can control the variables to perform fatigue testing, and can test the fatigue life of the wave spring at different temperatures and the same humidity or at the same temperature and different humidity, and can test the high temperature and humidity resistance of the wave spring; S3: The hydraulic cylinder (3) is started to drive the lower connecting ring (9) of the lower supporting plate (8) to slide on the outer wall of the supporting upright (4), so that the upper supporting plate (7) and the lower supporting plate (8) reciprocate to stretch and retract the wave spring, thereby testing the fatigue life of the wave spring.

2. A wave spring fatigue test bench according to claim 1, characterized in that: The protective cover (2) is made of tempered glass, and the gap between the protective cover (2) and the device base (1) is sealed by means of a sealant.

3. The wave spring fatigue test bench according to claim 1, characterized in that: The top of the support pole (4) is threadedly connected with an anti-drop cap (6).

4. The wave spring fatigue test bench according to claim 1, characterized in that: The threaded cylinder (11) is provided with two corresponding to the limiting cylinder (10) and is respectively installed on both sides of the limiting cylinder (10).

5. The wave spring fatigue test bench according to claim 1, characterized in that: The supporting upright poles (4) are evenly provided with bolt holes (22), and the upper connecting ring (5) is provided with through holes corresponding to the bolt holes (22).

6. The wave spring fatigue test bench according to claim 1, characterized in that: The device base (1) is provided with an inspection door (23).

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