Spring fatigue life tester

Abstract

The utility model discloses a spring fatigue life tester, which belongs to the technical field of spring fatigue life testers, and is characterized by comprising a spring fatigue life test bench body, the top of the spring fatigue life test bench body is provided with an auxiliary detection mechanism, and the auxiliary detection mechanism comprises a protection assembly and a measurement assembly. The protection assembly is arranged at the top of the spring fatigue life test bench body, the measurement assembly is arranged at the top of the spring fatigue life test bench body, and the protection assembly and the measurement assembly are arranged, so that the protection assembly can be mounted at the top of the test bench for wrapping protection, and the splashing phenomenon is avoided; meanwhile, a fixing structure capable of adjusting the width is arranged in the protection assembly and used for fixing springs with different inner diameters, the measuring assembly can visually measure the height of the spring before detection and the height of the spring after detection, and meanwhile a user can be assisted in visually knowing whether the spring deforms or not, for example, one side of the spring inclines or not.

Description

Technical Field

[0001] This utility model relates to the technical field of spring fatigue life testing instruments, and particularly to spring fatigue life testing instruments. Background Technology

[0002] A spring fatigue life tester is a specialized device used to test the ability of a spring to resist fatigue failure under cyclic loads. It simulates the stress state of a spring in actual operation and conducts long-term, high-frequency cyclic loading tests on the spring to evaluate its fatigue life, performance stability, and reliability.

[0003] Most spring fatigue life testing benches can only test a certain type of spring, which limits the scope of application of the test bench. At the same time, most spring fatigue life testing benches are very cumbersome to operate and require workers to make adjustments multiple times.

[0004] Existing patent (publication number: CN217654713U) discloses a spring fatigue life testing bench, comprising a platform, a support fixedly connected to the upper part of the platform, a cylinder fixedly connected to the upper part of the support, a movable rod fixedly connected to the lower movable end of the cylinder, a limit groove provided on the inner wall of the support, a cavity provided inside the platform, a threaded rod and a square sleeve provided inside the cavity, a spring provided on the outer periphery of the upper part of the square sleeve, a motor fixedly connected inside the platform, a drive gear fixedly connected to the left drive end of the motor, and a control board fixedly connected to the upper part of the platform. The control board is electrically connected to the cylinder and the motor. In this invention, by activating the cylinder, it drives the pressure plate to repeatedly press the spring, making the spring fatigue life testing bench easy to operate and perform testing. By activating the motor to adjust the height of the square sleeve, the spring fatigue life testing bench can test springs of different lengths.

[0005] Existing spring fatigue life testing equipment uses a cylinder as the driving device to perform spring compression tests. It also has an internal adjustment structure to test springs at different heights. However, the equipment lacks an external protective structure, leaving the springs exposed during testing. If the spring being tested is defective, there is a risk of springs flying. Furthermore, it lacks auxiliary spring fixing structures and spring measuring structures, making it difficult for users to quickly complete spring testing. Therefore, it is not user-friendly.

[0006] Therefore, a spring fatigue life testing instrument is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a spring fatigue life tester, which aims to solve the problems of existing spring fatigue life test equipment. While existing equipment uses a cylinder as a driving device for spring compression testing and has an internal adjustment structure for testing springs at different heights, it lacks an external protective structure, leaving the spring exposed during testing. If the spring being tested is defective, there is a risk of it splashing. Furthermore, it lacks an auxiliary spring fixing structure and a spring measuring structure, making it difficult for users to quickly complete spring testing and thus inconvenient for them to use.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a spring fatigue life tester, comprising a spring fatigue life test bench body, wherein an auxiliary detection mechanism is provided on the top of the spring fatigue life test bench body, the auxiliary detection mechanism comprising a protective component and a measuring component, wherein the protective component is provided on the top of the spring fatigue life test bench body, and the measuring component is provided on the top of the spring fatigue life test bench body.

[0009] The protective assembly includes a support block, a support rod, a clamping rod, and a protective baffle. The support block is bolted to the top of the spring fatigue life test bench body, the support rod is snapped into the top of the inner side of the support block, the clamping rod is threaded to both sides of the inner side of the support block, and the protective baffle is bolted to the top of the spring fatigue life test bench body.

[0010] Preferably, the measuring component includes a measuring plate bolted to the top right side of the spring fatigue life test bench body, and the surface of the measuring plate is provided with a graduated groove.

[0011] Preferably, a support plate is fixedly connected to the bottom of the inner side of the measuring plate, and a measuring cross plate is movably connected to the top of the support plate.

[0012] Preferably, a storage channel is provided on the inner side of the measuring cross plate near the measuring plate, and a miniature laser pointer is snapped into the inner side of the measuring cross plate.

[0013] Preferably, the top of the spring fatigue life test bench body is provided with an auxiliary component, the auxiliary component including a movable block slidably connected to the inner side of the measuring cross plate, and a positioning knob is threadedly connected to the top of the movable block.

[0014] Preferably, a contact rod is fixedly connected to the bottom of the movable block, and the surface of the contact rod is arc-shaped.

[0015] Preferably, a moving channel is provided on the inner side of the support block, and a slider is slidably connected to the top of the support block.

[0016] Preferably, the two sides of the support rod are semi-circular, and the inner side of the clamping rod is close to the surface of the support rod.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By setting up a protective component, the user can combine the protective component with the spring fatigue life test bench body when using the spring fatigue life tester. The protective component can be installed on the top of the test bench for protection, avoiding splashing. At the same time, the protective component is equipped with an adjustable width fixing structure to fix springs with different inner diameters, which facilitates the user's subsequent fatigue testing.

[0019] 2. By setting up a measuring component, this application allows users to install the measuring component on the top of the spring fatigue life test bench when using the spring fatigue life tester. This makes it convenient for them to intuitively measure the height of the spring before and after the test. It also helps users to intuitively understand whether the spring has deformed, such as tilting to one side. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the spring fatigue life testing instrument of this utility model;

[0021] Figure 2 This is a schematic diagram of the auxiliary detection mechanism in this utility model;

[0022] Figure 3 This is a schematic diagram of the protective component in this utility model;

[0023] Figure 4 This is a schematic diagram of the measuring component in this utility model;

[0024] Figure 5 This is a schematic diagram of the auxiliary components in this utility model.

[0025] In the figure, 1. Spring fatigue life test bench body; 2. Auxiliary testing mechanism; 201. Protective component; 201a. Support block; 201b. Support rod; 201c. Clamping rod; 201d. Protective baffle; 202. Measuring component; 202a. Measuring plate; 202b. Bearing plate; 202c. Measuring cross plate; 202d. Miniature laser pointer; 3. Auxiliary component; 301. Moving block; 302. Positioning knob; 303. Contact rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 A spring fatigue life tester includes a spring fatigue life test bench body 1. An auxiliary testing mechanism 2 is provided on the top of the spring fatigue life test bench body 1. The auxiliary testing mechanism 2 includes a protective component 201 and a measuring component 202. The protective component 201 is provided on the top of the spring fatigue life test bench body 1, and the measuring component 202 is provided on the top of the spring fatigue life test bench body 1.

[0028] The protective assembly 201 includes a support block 201a, a support rod 201b, a clamping rod 201c, and a protective baffle 201d. The support block 201a is bolted to the top of the spring fatigue life test bench body 1. The support rod 201b is snapped into the top of the inner side of the support block 201a. The clamping rod 201c is threaded to both sides of the inner side of the support block 201a. The protective baffle 201d is bolted to the top of the spring fatigue life test bench body 1.

[0029] In this embodiment: By setting up a support block 201a, a support rod 201b, a clamping rod 201c, and a protective baffle 201d, when using this spring fatigue life tester, the user can install the support block 201a, support rod 201b, clamping rod 201c, and protective baffle 201d onto the top of the spring fatigue life test bench body 1. At this time, the protective baffle 201d can cover the working area at the top of the test bench to avoid the danger of splashing. At the same time, the user can place the spring on top of the support block 201a. Different lengths of support rods 201b can be selected and installed according to springs with different inner diameters, so that the support rod 201b can open the slider set on the top of the support block 201a. At the same time, the clamping rod 201c can be rotated to contact the bottom surface of the spring. The spring is fixed on the top of the support block 201a by the clamping of the support rod 201b and the clamping rod 201c.

[0030] Specifically, such as Figure 2 , Figure 4 As shown, the measuring component 202 includes a measuring plate 202a that is bolted to the top right side of the spring fatigue life test bench body 1, and the surface of the measuring plate 202a is provided with a scale groove.

[0031] Specifically, such as Figure 2 , Figure 4As shown, a support plate 202b is fixedly connected to the bottom of the inner side of the measuring plate 202a, and a measuring cross plate 202c is movably connected to the top of the support plate 202b.

[0032] Specifically, such as Figure 2 , Figure 4 As shown, a storage channel is provided on the inner side of the measuring cross plate 202c near the measuring plate 202a, and a miniature laser pointer 202d is snapped into the inner side of the measuring cross plate 202c.

[0033] In this embodiment: by setting up a measuring plate 202a, a support plate 202b, a measuring cross plate 202c, and a micro laser pointer 202d, when measuring the height of a spring, the user can place the spring on top of the support plate 202b before testing, and simultaneously combine the measuring cross plate 202c and the micro laser pointer 202d and place them on top of the spring. At this time, the position of the light on the surface of the measuring plate 202a can be directly observed and recorded. Then, a pressing test is performed, and then the spring is placed on top of the support plate 202b again to observe the position of the light on the surface of the measuring plate 202a. If the position of the light is different, the spring is defective; if they are the same, the test is passed.

[0034] Specifically, such as Figure 4 , Figure 5 As shown, an auxiliary component 3 is provided on the top of the spring fatigue life test bench body 1. The auxiliary component 3 includes a moving block 301 that is slidably connected to the inner side of the measuring cross plate 202c. A positioning knob 302 is threadedly connected to the top of the moving block 301.

[0035] Specifically, such as Figure 4 , Figure 5 As shown, a contact rod 303 is fixedly connected to the bottom of the movable block 301, and the surface of the contact rod 303 is arc-shaped.

[0036] In this embodiment: by setting a moving block 301, a positioning knob 302 and a contact rod 303, the moving block 301, the positioning knob 302 and the contact rod 303 cooperate with each other. The moving block 301 can move the contact rod 303 to contact the inner surface of the spring. At this time, the user can rotate the positioning knob 302 to fix the moving block 301, so that the measuring cross plate 202c can be placed on the top of the spring for measuring the spring.

[0037] Specifically, such as Figure 3 As shown, a moving channel is provided on the inner side of the support block 201a, and a slider is slidably connected to the top of the support block 201a.

[0038] Specifically, such as Figure 3 As shown, the two sides of the support rod 201b are semi-circular, and the inner side of the clamping rod 201c is close to the surface of the support rod 201b.

[0039] In this embodiment: by setting support block 201a, support rod 201b and clamping rod 201c, the support block 201a, support rod 201b and clamping rod 201c cooperate with each other so that they can receive and fix springs with different inner diameters, which is convenient for users to use the spring fatigue life test bench body 1 for subsequent testing.

[0040] Working Principle: Firstly, when testing springs, the user can install the support block 201a, support rod 201b, clamping rod 201c, and protective baffle 201d onto the top of the spring fatigue life testing bench body 1. The protective baffle 201d covers the top working area of ​​the testing bench, preventing splashing hazards. Simultaneously, the user can place the spring on top of the support block 201a. Different lengths of support rod 201b can be installed depending on the spring's inner diameter, allowing the support rod 201b to open the slider on top of the support block 201a and rotate the clamping rod. The holding rod 201c contacts the bottom surface of the spring. The spring is fixed to the top of the support block 201a by the clamping of the support rod 201b and the clamping rod 201c. When measuring the height of the spring, the user can place the spring on the top of the bearing plate 202b before testing. At the same time, the measuring cross plate 202c and the micro laser pointer 202d are combined and placed on the top of the spring. At this time, the position of the light on the surface of the measuring plate 202a can be directly observed and recorded. Then, a pressing test is performed. The spring is then placed on the top of the bearing plate 202b again to observe the position of the light on the surface of the measuring plate 202a. If the position of the light is different, the spring is defective. If the positions are the same, the test is passed.

[0041] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the scope of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A spring fatigue life testing apparatus, comprising a spring fatigue life testing bench body (1), characterized in that: An auxiliary testing mechanism (2) is provided on the top of the spring fatigue life test bench body (1). The auxiliary testing mechanism (2) includes a protective component (201) and a measuring component (202). The protective component (201) is provided on the top of the spring fatigue life test bench body (1), and the measuring component (202) is provided on the top of the spring fatigue life test bench body (1). The protective assembly (201) includes a support block (201a), a support rod (201b), a clamping rod (201c), and a protective baffle (201d). The support block (201a) is bolted to the top of the spring fatigue life test bench body (1). The support rod (201b) is snapped into the top of the inner side of the support block (201a). The clamping rod (201c) is threaded to both sides of the inner side of the support block (201a). The protective baffle (201d) is bolted to the top of the spring fatigue life test bench body (1).

2. The spring fatigue life testing apparatus according to claim 1, characterized in that: The measuring component (202) includes a measuring plate (202a) bolted to the top right side of the spring fatigue life test bench body (1), and the surface of the measuring plate (202a) is provided with a scale groove.

3. The spring fatigue life testing apparatus according to claim 2, characterized in that: The bottom of the inner side of the measuring plate (202a) is fixedly connected to a support plate (202b), and the top of the support plate (202b) is movably connected to a measuring cross plate (202c).

4. The spring fatigue life testing apparatus according to claim 3, characterized in that: A storage channel is provided on the inner side of the measuring cross plate (202c) near the measuring plate (202a), and a miniature laser pointer (202d) is snapped into the inner side of the measuring cross plate (202c).

5. The spring fatigue life testing apparatus according to claim 3, characterized in that: The top of the spring fatigue life test bench body (1) is provided with an auxiliary component (3), which includes a moving block (301) that is slidably connected to the inside of the measuring cross plate (202c). The top of the moving block (301) is threadedly connected with a positioning knob (302).

6. The spring fatigue life testing apparatus according to claim 5, characterized in that: The bottom of the movable block (301) is fixedly connected to a contact rod (303), and the surface of the contact rod (303) is arc-shaped.

7. The spring fatigue life testing apparatus according to claim 1, characterized in that: The support block (201a) has a moving channel on its inner side, and a slider is slidably connected to the top of the support block (201a).

8. The spring fatigue life testing apparatus according to claim 1, characterized in that: The two sides of the support rod (201b) are semi-circular, and the inner side of the clamping rod (201c) is close to the surface of the support rod (201b).

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