Curved-surface wave-shaped elastic washer

Abstract

The utility model relates to the field of elastic washers, in particular to a curved-surface wave-shaped elastic washer, which comprises a bottom ring and a wave washer body, the top surface of the bottom ring comprises a plurality of cambered surfaces and a plurality of connecting planes, the cambered surfaces and the connecting planes are alternately arranged, and the wave washer body comprises an upper surface and a lower surface. The upper surface and the lower surface are both in a wave shape, the upper surface and the lower surface are kept parallel, the cambered surface makes contact with the wave washer body, and friction patterns are arranged on the bottom surface of the bottom ring. According to the utility model, the bottom ring and the wave washer body are arranged, so that the wave washer can keep the pre-tightening force of a bolt by storing elastic potential energy through deformation, and the situation that the wave washer continuously rotates to scratch a mounting surface due to small contact area is avoided; and through the arrangement of the friction patterns, the friction force between the bottom ring and the mounting surface is further improved, and relative rotation between the bottom ring and the mounting surface is further avoided.

Description

Technical Field

[0001] This utility model relates to the field of elastic washers, and in particular to a curved wave elastic washer. Background Technology

[0002] A wave-shaped elastic washer is an elastic washer with a wave-like structure, usually made of metallic materials such as stainless steel, carbon steel, or alloy steel. Its main characteristic is the continuous wave-like shape formed on the washer surface; this wave-like structure gives it unique elastic and mechanical properties.

[0003] However, due to the corrugated structure of the washer, the contact area between it and the bolt and mounting surface is small, resulting in low friction. When tightening the bolt, the washer may rotate continuously and scratch the mounting surface. Therefore, it is necessary to improve this structure to overcome these defects. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a curved waveform elastic washer. This utility model is achieved through the following technical solution:

[0005] A curved wave elastic washer includes a bottom ring and a wave washer body. The top surface of the bottom ring includes several arc surfaces and several connecting planes, which are alternately arranged. The wave washer body includes an upper surface and a lower surface, both of which are wavy and parallel to each other. The arc surfaces are in contact with the wave washer body, while the connecting planes are not in contact with the wave washer body. The bottom surface of the bottom ring is provided with friction patterns.

[0006] In the above technical solution: the bottom ring increases the contact area between the corrugated washer and the mounting surface, thereby increasing friction and preventing scratches caused by rotation; the corrugated washer body achieves the function of maintaining preload through its wavy upper and lower surfaces; the arc surface contacts the corrugated washer body while the connecting plane does not contact the corrugated washer body, allowing the corrugated washer body to have room for deformation; the friction pattern is used to further improve friction.

[0007] A further feature of this invention is that the inner diameter of the bottom ring is consistent with the inner diameter of the projection of the waveform washer body along the axial direction.

[0008] In the above technical solution, the inner diameter of the bottom ring is consistent with the inner diameter of the projection of the wave washer body along the axial direction, so that the relative position of the two is stable and the contact is better when the bolt is inserted.

[0009] A further feature of this invention is that the outer diameter of the bottom ring is consistent with the outer diameter of the waveform washer body projected along the axial direction.

[0010] In the above technical solution, the outer diameter of the bottom ring is consistent with the outer diameter of the projection of the corrugated washer body along the axial direction, so that the relative position of the two is stable and the contact is better when the bolt is inserted.

[0011] A further feature of this invention is that the connecting plane is parallel to the bottom surface of the bottom ring.

[0012] In the above technical solution: the connecting plane and the bottom surface of the bottom ring are parallel, so that when the bottom ring contacts the mounting surface, the central axis of the bottom ring coincides with the central axis of the corrugated washer body, thereby maintaining full contact between the bottom ring and the corrugated washer body.

[0013] A further feature of this invention is that the friction pattern comprises a plurality of uniformly arranged triangular prisms.

[0014] In the above technical solution, the triangular prism design makes the bottom ring less prone to rotation when the bolts are tightened.

[0015] This utility model discloses a curved waveform elastic washer, which, compared with the prior art:

[0016] 1. By setting a bottom ring and a corrugated washer body, this utility model enables the corrugated washer to retain its elastic potential energy stored through deformation to maintain the preload of the bolt, while also preventing the corrugated washer from continuously rotating and scratching the mounting surface due to the small contact area.

[0017] 2. This utility model further improves the friction between the bottom ring and the mounting surface by setting the friction pattern, and further avoids relative rotation between the bottom ring and the mounting surface. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is an exploded view of the present invention;

[0020] Figure 3 This is a schematic diagram of the bottom ring of this utility model;

[0021] Figure 4 This is a schematic diagram of the waveform washer body of this utility model.

[0022] The numbers and letters in the diagram represent the following component names: 10-bottom ring; 101-arc surface; 102-connecting plane; 103-friction pattern; 103a-triangular prism; 20-wave washer body; 201-upper surface; 202-lower surface. Detailed Implementation

[0023] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0024] like Figure 1-4 As shown, this utility model proposes a curved wave elastic washer, including a bottom ring 10 and a wave washer body 20. The top surface of the bottom ring 10 includes several arc surfaces 101 and several connecting planes 102, which are alternately arranged. The wave washer body 20 includes an upper surface 201 and a lower surface 202, both of which are wavy and parallel. The arc surfaces 101 are in contact with the wave washer body 20, while the connecting planes 102 are not in contact with it. The bottom surface of the bottom ring 10 is provided with friction patterns 103. Preferably, there are four arc surfaces 101. When the wave washer body 20 is placed on a horizontal plane, the vertical distance between its highest and lowest points is recorded as the elevation of the wave washer body 20. The elevation of the wave washer body 20 is greater than the depth of the lowest point of the arc surface 101.

[0025] like Figure 1-4 As shown, this utility model proposes a curved wave elastic washer, wherein the inner diameter of the bottom ring 10 is consistent with the inner diameter of the projection of the wave washer body 20 along the axial direction. Specifically, the projection of the wave washer body 20 along the axial direction refers to the planar projection image of its projection along its own axis onto a plane perpendicular to its axis.

[0026] like Figure 1-4 As shown, the present invention proposes a curved wave elastic washer, wherein the outer diameter of the bottom ring 10 is consistent with the outer diameter of the projection of the wave washer body 20 along the axial direction.

[0027] like Figure 1-4 As shown, the present invention proposes a curved wave elastic washer, wherein the connecting plane 102 is parallel to the bottom surface of the bottom ring 10.

[0028] like Figure 1-4 As shown, this utility model proposes a curved wave elastic washer, wherein the friction pattern 103 includes a plurality of uniformly arranged triangular prisms 103a. Preferably, the cross-section of the triangular prism 103a is a right triangle, and the inclination direction of the inclined surface of the triangular prism 103a corresponds to the tightening direction of the bolt, so as to ensure that when the bolt is tightened, one side of the inclined surface of the bottom ring 10 contacts the mounting surface.

[0029] The working principle of this utility model is as follows:

[0030] a) Place the bottom ring at the threaded hole on the mounting surface;

[0031] b) Place the wave washer body on the bottom ring and keep it in contact with the curved surface;

[0032] c) Pass the bolt through the inner ring of the corrugated washer body and the inner ring of the bottom ring;

[0033] d) Tighten the bolts by rotating them;

[0034] e) During the tightening process, the bolt comes into contact with the corrugated washer body, causing the corrugated washer body to deform;

[0035] f) At this time, the bottom ring is under pressure and in full contact with the mounting surface. Due to the large contact area, the friction is greater, so it will not rotate.

[0036] g) Because the curved surface is in contact with the body of the wave washer, the body of the wave washer cannot rotate.

[0037] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A curved wave-form elastic gasket, characterized by: The bottom ring (10) includes a plurality of arc surfaces (101) and a plurality of connecting planes (102) on the top surface, the arc surfaces (101) and the connecting planes (102) are arranged alternately, the wave-shaped gasket body (20) includes an upper surface (201) and a lower surface (202), the upper surface (201) and the lower surface (202) are both wave-shaped, and the upper surface (201) and the lower surface (202) are kept parallel, the arc surfaces (101) are in contact with the wave-shaped gasket body (20), the connecting planes (102) are not in contact with the wave-shaped gasket body (20), and the bottom surface of the bottom ring (10) is provided with friction patterns (103).

2. A curved wave-form elastic gasket according to claim 1, wherein: The inner diameter of the bottom ring (10) is consistent with the inner diameter of the projection of the wave-shaped gasket body (20) in the axial direction.

3. A curved wave-form elastic gasket according to claim 1, wherein: The outer diameter of the bottom ring (10) is consistent with the outer diameter of the projection of the wave-shaped gasket body (20) in the axial direction.

4. A curved wave-form elastomeric gasket as defined in claim 1, wherein: The connecting planes (102) are parallel to the bottom surface of the bottom ring (10).

5. A curved wave-form elastomeric gasket as defined in claim 1, wherein: The friction patterns (103) include a plurality of uniformly arranged triangular prisms (103a).

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