CN217177240U

CN217177240U - Plane spiral wave spring

Info

Publication number: CN217177240U
Application number: CN202123389960.6U
Authority: CN
Inventors: 刘同胜; 吴智科; 季乐
Original assignee: Jiangsu Sanzhong Elastic Technology Co ltd
Current assignee: Jiangsu Sanzhong Elastic Technology Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-12
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a plane spiral wave spring, which comprises a spring belt, wherein the spring belt forms a wave line oscillating with a radial reference plane in the circumferential direction, and the wave line is provided with wave crests and wave troughs; the spring band is spirally wound to form a planar spiral arrangement; the wave crests and troughs in the wavy line are perpendicular to the plane of the spiral arrangement to form waves perpendicular to the plane of the spiral. The utility model discloses have higher elastic modulus, still increased wave spring's rigidity. The planar arrangement is suitable for being installed in a smaller space, and the utilization rate of the space is higher.

Description

Plane spiral wave spring

Technical Field

The utility model relates to a wave spring technical field, concretely relates to plane spiral wave spring.

Background

The wave spring is an elastic element with a plurality of peaks and valleys on a metal thin circular ring. The method is generally applied to occasions where the load and the deformation are not large, the spring stiffness is required to be small, and axial pre-pressure needs to be applied. The wave spring is particularly suitable for applications requiring weight reduction and applications limited by small installation space, and typical application fields of the wave spring comprise aerospace, precision machinery, hydraulic sealing, high-end motors and the like.

Wave springs are often used as axial compensation elements or restoring elements, both as individual elements and as an assembly of a plurality of wave springs together in a connecting device.

Currently, a wave spring commonly used in the market is shown in fig. 1, and its specific structure is already filed with application No. 2012900002660, and the patent publication of the wave spring is a wave spring which includes a spring band wound in a substantially circular ring manner, the spring band forming a wave line oscillating in a radial reference plane in a circumferential direction and having peaks and valleys.

The wave spring is a common wave spring and is formed by superposing a circular ring and ripples. Is a closed ring shape with 1 complete turn. It has the disadvantage of low stiffness; the requirement of high rigidity cannot be satisfied.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a plane spiral wave spring; the technical problem can be effectively solved.

The utility model discloses a following technical scheme realizes:

a plane spiral wave spring comprises a spring band, wherein a wave line oscillating in a radial reference plane is formed on the spring band in the circumferential direction, and the wave line is provided with wave crests and wave troughs; the spring band is wound in a spiral manner to form a spiral line in a planar spiral arrangement; the wave crests and troughs in the wavy line are perpendicular to the plane of the spiral arrangement to form waves perpendicular to the plane of the spiral.

Further, the wave formed by the wave crest and the wave trough in the wavy line is a sine wave.

Further, the spirally arranged helix is an open helix, and the open helix is provided with a plurality of turns.

Further, the open spiral may employ an archimedean spiral, a logarithmic spiral, or an involute.

Furthermore, the open spiral line is provided with 5-6 circles.

Furthermore, in the spiral line, the high stress area and the low stress area of the adjacent inner ring and outer ring are arranged in a crossed manner; and the wave crests and wave troughs of the adjacent inner ring and the outer ring are arranged in a crossing way.

Further, the spring band is a flat wire.

Furthermore, the spring band is made of elastic material with low carbon content.

Advantageous effects

The utility model provides a pair of plane spiral wave spring compares with traditional prior art, and it has following beneficial effect:

(1) according to the technical scheme, through the spring band and the waveform arranged on the spring band, the wave crest and the wave trough in the waveform line are mutually vertical to the spirally arranged plane, and the wave vertical to the spiral plane is formed; each vertical wave acts as a small spring. Winding the spring band in a spiral manner to form a spiral line in a planar spiral arrangement; it is equivalent to disposing a plurality of adjacently disposed springs in this planar spirally arranged spiral line, thus having a higher modulus of elasticity and also increasing the stiffness of the wave spring. The planar arrangement is suitable for being installed in a smaller space, and the utilization rate of the space is higher.

(2) In the technical scheme, the open spiral line is provided with a plurality of circles, and the open spiral line can adopt winding modes such as Archimedes spiral, logarithmic spiral or involute according to different requirements; the wave spring has strong adaptability and can be applied to more different scenes.

(3) The open helix of many rings among this technical scheme for wave spring's compact structure can adapt to the miniaturization and the miniaturization of product.

(4) In the spiral line in the technical scheme, high stress areas and low stress areas of adjacent inner rings and outer rings are arranged in a crossed manner; the wave crests and wave troughs of the adjacent inner ring and the outer ring are arranged in a crossing way; the wave spring is more uniformly received and has stronger fatigue resistance, and the service life of the wave spring is prolonged.

Drawings

Fig. 1 is a schematic view of a general wave spring structure.

Fig. 2 is a schematic view of the overall structure of the present invention.

Fig. 3 is a plan view of the present invention.

Fig. 4 is a left side view of the present invention.

Reference numbers in the drawings: 1-spring band, 2-wave crest, 3-wave trough, 4-low stress area and 5-high stress area.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

As shown in fig. 2-4, the planar helical wave spring comprises a spring band 1, wherein the spring band 1 is a flat wire made of an elastic material with low carbon content.

The spring band 1 is wound in a spiral manner to form a spiral line in a planar spiral arrangement; the helically arranged helix is an open helix, the open helix being provided with a plurality of turns. The open spiral line is provided with 5-6 circles. In this embodiment, 5 turns are used. The open spiral may take the form of an archimedean spiral, a logarithmic spiral or an involute. Other shapes of spiral lines may be used depending on the requirements of the application scenario.

The spring band 1 forms a wavy line oscillating in a radial reference plane in the circumferential direction, and the wavy line is provided with a wave crest 2 and a wave trough 3; the wave crests 2 and troughs 3 in the wavy line are perpendicular to the plane of the spiral arrangement, forming waves perpendicular to the plane of the spiral. The wave formed by the wave crests 2 and the wave troughs 3 in the wavy line is a sine wave.

In the spiral line, high stress areas 5 and low stress areas 4 of adjacent inner rings and outer rings are arranged in a crossed mode; and the wave crests 2 and the wave troughs 3 of the adjacent inner ring and the outer ring are arranged in a crossing way.

Claims

1. A plane spiral wave spring comprises a spring band (1), wherein a wave line oscillating in a radial reference plane is formed on the spring band (1) in the circumferential direction, and is provided with wave crests (2) and wave troughs (3); the method is characterized in that: the spring band (1) is spirally wound to form a spiral line in a planar spiral arrangement; the wave crests (2) and the wave troughs (3) in the wavy line are perpendicular to the plane of the spiral arrangement to form waves perpendicular to the plane of the spiral.

2. The flat coil wave spring as claimed in claim 1, wherein: the wave formed by the wave crest (2) and the wave trough (3) in the wavy line is a sine wave.

3. The flat coil wave spring as claimed in claim 1, wherein: the spirally arranged helix is an open helix, and the open helix is provided with a plurality of turns.

4. A flat spiral wave spring as claimed in claim 3, wherein: the open spiral can adopt an Archimedes spiral, a logarithmic spiral or an involute.

5. A flat spiral wave spring as claimed in claim 3, wherein: the open spiral line is provided with 5-6 circles.

6. The flat coil wave spring as claimed in claim 3 or 5, wherein: in the spiral line, high stress areas (5) of adjacent inner rings and outer rings are crossed with low stress areas (4); and the wave crests (2) and the wave troughs (3) of the adjacent inner ring and the outer ring are arranged in a crossing way.

7. The flat coil wave spring as claimed in claim 1, wherein: the spring band (1) is a flat wire.

8. The flat coil wave spring as claimed in claim 1, wherein: the spring band (1) is made of an elastic material with low carbon content.