Anti-fatigue single-layer closed wave spring

Abstract

The utility model relates to an anti-fatigue single-layer closed wave spring which comprises a wave spring body, the wave spring body comprises a wave spring ring, a plurality of peak tops are distributed on the top of the wave spring ring, and a plurality of peak bottoms are distributed at the bottom of the wave spring ring. A mounting plate is fixed to the bottom of the wave spring ring, a positioning plate is fixed to the top of the mounting plate, and two limiting assemblies are arranged at the top of the positioning plate. According to the anti-fatigue single-layer closed wave spring, the wave spring body can be effectively positioned through the arranged positioning plate, so that the wave spring body deforms and does not shake when being supported, and the wave spring is more stably supported; and the arranged limiting assembly can effectively limit the moving distance of the wave spring body, so that the wave spring body is effectively prevented from being compressed to be lower than the inherent limit compression height.

Description

Technical Field

[0001] The utility model relates to the technical field of wave springs, in particular to a fatigue-resistant single-layer closed wave spring. Background Art

[0002] Wave spring is also called wave spring for short. It is a thin annular elastic metal element composed of several wave crests and troughs. The spring is made of high-quality spring steel 65Mn. It is heat-treated by a specific method and the hardness is generally controlled between HRC44-55 according to the specific situation. The surface is black and has good elasticity. Wave springs are widely used in motors, textile machinery, hydraulic equipment, automobiles and other industries. They are mainly installed in bearing rooms or holes that are suitable for specifications (nominal dimensions). The installation space is very small and it has the special function of reducing noise and vibration.

[0003] For example, the Chinese utility model patent with publication number CN213088593U proposes a wave spring, characterized in that it includes: a protrusion, wherein the protrusion is configured to contact the wall of the positioning hole (groove) when the wave spring is under pressure, thereby avoiding interference between the crest and trough edges of the wave spring and the wall of the positioning hole (groove). The beneficial effect of the utility model is that it avoids interference between the crest and trough edges of the wave spring and the root fillet of its positioning hole (groove), thereby increasing the life of the wave spring.

[0004] However, there are still some problems. Although the service life of the wave spring can be effectively improved, the wave spring has an inherent limit compression height. Under the action of external force, when the wave spring is actually compressed to a level higher than or equal to the inherent limit compression height, the wave spring undergoes elastic deformation, that is, after the external force is removed, the wave spring can return to its original state, but as long as the wave spring is actually compressed to a level lower than the inherent limit compression height, the wave spring will undergo permanent deformation and produce elastic fatigue, which is not conducive to subsequent use. Therefore, an anti-fatigue single-layer closed wave spring is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a fatigue-resistant single-layer closed wave spring, which has the advantages of anti-fatigue and the like, and solves the problem that when the wave spring is actually compressed to a height below the inherent limit compression height, the wave spring will undergo permanent deformation and produce elastic fatigue.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an anti-fatigue single-layer closed wave spring, comprising a wave spring body, the wave spring body comprising a wave spring coil, the top of the wave spring coil is distributed with a plurality of peak tops, the bottom of the wave spring coil is distributed with a plurality of peak bottoms, a mounting plate is fixed to the bottom of the wave spring coil, a positioning plate is fixed to the top of the mounting plate, two limit assemblies are arranged on the top of the positioning plate, and the limit assemblies are used to prevent excessive deformation of the wave spring body;

[0007] The limiting assembly includes a fixed block, a moving rod and a control block. The fixed block is fixed to the positioning plate. The interior of the fixed block is threadedly connected to the moving rod slidably connected to the positioning plate. The outer surface of the moving rod is fixed to the control block.

[0008] Furthermore, a friction strip is fixed on the outer surface of the control block, and a sponge pad is fixed on the top of the moving rod.

[0009] Furthermore, a threaded strip is fixed on the outer surface of the moving rod, and a threaded hole matching the threaded strip is provided inside the fixing block.

[0010] Furthermore, a sliding block slidably connected to the positioning plate is fixed on the outer surface of the moving rod, and a pressing pad is fixed on the outer surface of the sliding block, and the pressing pad is tightly fitted with the positioning plate.

[0011] Furthermore, the mounting plate and the positioning plate are both annular, and mounting holes are provided on the tops of the positioning plate and the mounting plate.

[0012] Furthermore, the peak tops and peak bottoms have the same offset angle, and the tops of the multiple peaks are on the same horizontal plane.

[0013] Furthermore, the wave spring body is a closed wave spring, and the surface of the wave spring body is coated with heat-insulating silicone.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] The fatigue-resistant single-layer closed wave spring can effectively position the wave spring body through the positioning plate, so that the wave spring body is deformed and does not shake during support, thereby making the support of the wave spring more stable. The limit assembly can effectively limit the moving distance of the wave spring body, thereby effectively preventing the wave spring body from being compressed to a height below the inherent limit compression height. The overall structure is simple, and the overall fatigue resistance is effectively improved, making the overall structure more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a three-dimensional diagram of the connection structure between the positioning plate and the limiting component of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the limit assembly of the utility model.

[0019] In the figure: 1 wave spring body, 101 wave spring coil, 102 peak top, 103 peak bottom, 2 mounting plate, 3 positioning plate, 4 limit assembly, 401 fixing block, 402 moving rod, 403 control block, 404 sponge pad. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-2 A fatigue-resistant single-layer closed wave spring in this embodiment includes a wave spring body 1, and the wave spring body 1 includes a wave spring coil 101. A plurality of peaks 102 are distributed on the top of the wave spring coil 101. The peaks 102 have the same offset angle as the peak bottom 103. The tops of the plurality of peaks 102 are on the same horizontal plane. The same horizontal plane makes the support of the wave spring body 1 more stable, thereby making the whole more practical. The wave spring body 1 is a closed wave spring, and the surface of the wave spring body 1 is coated with heat-insulating silicone. The provided heat-insulating silicone can effectively improve the heat resistance of the wave spring body 1, so that the wave spring body 1 will not be deformed due to high temperature, thereby effectively improving the overall fatigue resistance.

[0022] In addition, a plurality of peak bottoms 103 are distributed at the bottom of the wave spring ring 101, a mounting plate 2 is fixed to the bottom of the wave spring ring 101, a positioning plate 3 is fixed to the top of the mounting plate 2, and the positioning plate 3 is provided to position the wave spring body 1, thereby effectively preventing the wave spring body 1 from offset when it is deformed, thereby making the buffering more stable, the mounting plate 2 and the positioning plate 3 are both annular, and mounting holes are provided on the top of the positioning plate 3 and the mounting plate 2, and two limit assemblies 4 are provided on the top of the positioning plate 3, and the limit assemblies 4 are used to prevent excessive deformation of the wave spring body 1.

[0023] In general, the positioning plate 3 can position the wave spring body 1, so that the wave spring body 1 is not easily offset, making the support more stable.

[0024] Please read again Figure 2 and Figure 3 In order to improve the overall fatigue resistance, the limit assembly 4 in this embodiment includes a fixed block 401, a moving rod 402 and a control block 403. The fixed block 401 is fixed to the positioning plate 3. The interior of the fixed block 401 is threadedly connected to the moving rod 402 that is slidably connected to the positioning plate 3. A threaded bar is fixed on the outer surface of the moving rod 402. A threaded hole that is compatible with the threaded bar is opened inside the fixed block 401, so that when the moving rod 402 is rotated, the moving rod 402 will move due to the extrusion of the thread, thereby completing the adjustment of the position of the moving rod 402.

[0025] Furthermore, a sliding block slidably connected to the positioning plate 3 is fixed on the outer surface of the moving rod 402, and a compression pad is fixed on the outer surface of the sliding block. The compression pad fits tightly with the positioning plate 3. The arranged compression pad can effectively increase the friction between the positioning plate 3 and the moving rod 402, so that the moving rod 402 can be more stable when rotating. The outer surface of the moving rod 402 is fixed to the control block 403, and a friction strip is fixed on the outer surface of the control block 403. A sponge pad 404 is fixed on the top of the moving rod 402. The arranged sponge pad 404 has a certain cushioning property and can assist in cushioning, thereby making the whole more stable.

[0026] In general, the position of the moving rod 402 can be adjusted by rotating the moving rod 402, and when the device contacts the moving rod 402, the moving rod 402 can effectively limit the movement of the device, thereby effectively preventing excessive deformation of the wave spring body 1, thereby effectively improving the overall practicality.

[0027] The working principle of the above embodiment is:

[0028] After the wave spring body 1 is installed on the mounting plate 2, the movable rod 402 can be moved by rotating the control block 403 under the extrusion of the thread inside the fixed block 401, so as to adjust the position of the movable rod 402, and the whole is put on the bottom of the device that needs to be buffered, and the mounting plate 2 is fixed to the device. When the device moves, the wave spring coil 101 will be pressed, so that the peak 102 moves toward the bottom 103, thereby causing the wave spring body 1 to deform and buffer the device. When the device moves to contact with the control block 403, the device cannot continue to move, thereby effectively preventing the wave spring body 1 from excessive deformation, thereby effectively improving the fatigue resistance of the wave spring body 1, making the whole more durable and effectively improving the overall practicality.

[0029] It should be noted that, in this article, 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 such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0030] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A fatigue-resistant single-layer closed wave spring, comprising a wave spring body (1), characterized in that: The wave spring body (1) comprises a wave spring ring (101), the top of the wave spring ring (101) is provided with a plurality of peaks (102), the bottom of the wave spring ring (101) is provided with a plurality of peak bottoms (103), the bottom of the wave spring ring (101) is fixed with a mounting plate (2), the top of the mounting plate (2) is fixed with a positioning plate (3), the top of the positioning plate (3) is provided with two limit assemblies (4), the limit assemblies (4) are used to prevent the wave spring body (1) from excessive deformation; The limiting assembly (4) comprises a fixed block (401), a moving rod (402) and a control block (403); the fixed block (401) is fixed to the positioning plate (3); the interior of the fixed block (401) is threadedly connected to the moving rod (402) slidably connected to the positioning plate (3); and the outer surface of the moving rod (402) is fixed to the control block (403).

2. The fatigue-resistant single-layer closed wave spring according to claim 1, characterized in that: A friction strip is fixed to the outer surface of the control block (403), and a sponge pad (404) is fixed to the top of the moving rod (402).

3. The fatigue-resistant single-layer closed wave spring according to claim 1, characterized in that: A threaded strip is fixed on the outer surface of the moving rod (402), and a threaded hole matching the threaded strip is provided inside the fixing block (401).

4. The fatigue-resistant single-layer closed wave spring according to claim 1, characterized in that: A sliding block slidably connected to the positioning plate (3) is fixed on the outer surface of the moving rod (402), and a pressing pad is fixed on the outer surface of the sliding block, and the pressing pad is tightly fitted to the positioning plate (3).

5. The fatigue-resistant single-layer closed wave spring according to claim 1, characterized in that: The mounting plate (2) and the positioning plate (3) are both annular in shape, and mounting holes are provided on the tops of the positioning plate (3) and the mounting plate (2).

6. The fatigue-resistant single-layer closed wave spring according to claim 1, characterized in that: The peak tops (102) and the peak bottoms (103) have the same offset angle, and the tops of the multiple peak tops (102) are on the same horizontal plane.

7. The fatigue-resistant single-layer closed wave spring according to claim 1, characterized in that: The wave spring body (1) is a closed wave spring, and the surface of the wave spring body (1) is coated with heat-insulating silicone.

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