CN217463008U

CN217463008U - Open wave spring

Info

Publication number: CN217463008U
Application number: CN202221547139.4U
Authority: CN
Inventors: 李龙; 周兴友; 张彪
Original assignee: SHANGHAI HEGONG DISC SPRING MANUFACTURING CO LTD
Current assignee: SHANGHAI HEGONG DISC SPRING MANUFACTURING CO LTD
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-20
Anticipated expiration: 2032-06-20

Abstract

The utility model discloses an open wave spring, which comprises an open wave spring body, wherein the open wave spring body is provided with a plurality of wave crests and wave troughs, and the section of the wave spring body is isosceles trapezoid; the thickness of the inner diameter part of the wave spring body is larger than that of the outer diameter part; the inner diameter thickness of the wave spring body is t2, the outer diameter thickness of the wave spring body is t1, and the relation between the inner diameter thickness and the outer diameter thickness of the wave spring body is t1 ═ 0.3-0.7) t 2; the contact between the wave spring and the matched mechanism is line contact, the friction force is small, the force value error of theoretical design and actual test during the installation of the wave spring is reduced, and the risk of sealing leakage caused by loosening of high-temperature creep of the wave spring due to insufficient installation force value caused by the force value error is greatly reduced; the contact point is the interior circle department all the time in this wave spring body use, has satisfied the demand that needs big rigidity wave spring under the limited condition in space again.

Description

Open wave spring

Technical Field

The utility model relates to a spring especially relates to an opening wave spring.

Background

The open wave spring is usually processed by a metal steel belt, can be used in hydraulic valve industries such as petrifaction, steel, metallurgy, ships and the like, and is applied to occasions where load and deformation are not large, and the spring stiffness is required to be small and axial prepressing is required to be applied; the cross section of the existing wave spring is rectangular, the inner diameter of the wave spring is the same as the thickness of the outer diameter, the wave spring is in surface contact with the matched parts in the use process, the friction force is large, the wave spring can be usually installed according to the force value set by the theory when in use, the friction force is large, the error of the force value of the wave spring theory design and the actual test use is large, the wave spring is installed under the influence of the large friction force with the same force, the shrinkage of the wave spring is small, the wave spring is used in a high-temperature environment, if the wave spring is used in a high-temperature fluid valve, the wave spring generates creep deformation under the long-term high-temperature environment, the sealing structure of the valve can become loose, and therefore the risk of leakage can be generated.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims to solve the technical problem that: the utility model provides a structural design is reasonable, easy production, low cost, but in the greatly reduced wave spring use wave spring and cooperation mechanism's area of contact, reduce friction, reduce theoretical design and actual test application of force value error, reduce the wave spring and take place creep, relax under the long-time high temperature environment and lead to sealing mechanism to produce the opening wave spring of leakage risk.

In order to achieve the above purpose, the utility model adopts the following technical scheme to realize:

an open-ended wave spring comprises an open-ended wave spring body, wherein a plurality of wave crests and wave troughs are arranged on the open-ended wave spring body, and the section of the wave spring body is in an isosceles trapezoid shape; the thickness of the wave spring body at the inner diameter is larger than that at the outer diameter.

Preferably, the inner diameter thickness of the wave spring body is t2, the outer diameter thickness of the wave spring body is t1, and the relation between the inner diameter thickness and the outer diameter thickness of the wave spring body is t1 (0.3-0.7) t 2.

Preferably, the relationship between the inner and outer diameters of the wave spring body is t1 ═ 0.4 to 0.6 t 2.

The utility model discloses the contact point is interior round department all the time during use, and the mechanism that wave spring used with the cooperation is line contact, and frictional force is little, has reduced theoretical design and actual test use power value's error, and the wave spring can reduce by a wide margin in the use because theory and actual power value error are big during the actual installation wave spring, lead to actual installation wave spring pretightning force less, and wave spring high temperature creep produces lax and produces the risk of sealed leakage.

By the technical scheme can, the beneficial effects of the utility model are that:

compared with the prior art

(1) The utility model discloses a reasonable structural design, the cross-section of wave spring body is isosceles trapezoid structure, and wave spring is line contact with matched with mechanism, and frictional force is little, and theoretical design and actual test's power value error when having reduced the wave spring installation has reduced by a wide margin because power value error leads to the installation power value not enough and produce loose and produce the risk of sealed leakage when wave spring high temperature creep.

(2) And because the contact point is always the inner circle in the use process of the wave spring body, compared with the existing wave spring, under the condition that the parameters such as the outer diameter, the thickness, the wave number and the like are the same, the rigidity value of the wave spring body is larger than that of the existing wave spring with the rectangular section, thereby meeting the requirement that the wave spring with large rigidity is needed under the condition that the space is limited again.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic cross-sectional structure of the present invention;

fig. 4 is an enlarged schematic view of a portion a in fig. 3.

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. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "middle", "outer", "inner", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

For those skilled in the art to further understand the features and technical contents of the present invention, refer to the following detailed description and accompanying drawings.

As shown in fig. 1-4, an open-ended wave spring comprises an open-ended wave spring body 1, wherein a plurality of wave crests 2 and wave troughs 3 are arranged on the open-ended wave spring body 1, and the cross section of the wave spring body 1 is in an isosceles trapezoid shape; the thickness of the wave spring body 1 at the inner diameter is larger than that at the outer diameter.

As shown in fig. 3 to 4, the inner diameter thickness of the wave spring body 1 is t2, that is, the lower base of the isosceles trapezoid of the cross section of the wave spring is t2, the outer diameter thickness of the wave spring body is t1, that is, the upper base of the isosceles trapezoid of the cross section of the wave spring is t1, and the relation between the inner and outer diameter thicknesses of the wave spring body is t 2-2 t 1.

The utility model discloses the contact point is wave spring body 1's interior round department all the time during use, and the mechanism that wave spring used with the cooperation is line contact, and frictional force is little, has reduced the error of theoretical design and actual test application of force value, and the wave spring can reduce by a wide margin in the use because theory and actual force value error are big when actually installing wave spring, and it is less to lead to actually installing the wave spring pretightning force, and wave spring high temperature creep produces lax and produces the risk of sealed leakage.

The contact point is the interior circle department all the time in this wave spring body use, compares with current wave spring, and under the condition that parameters such as external diameter, thickness, wave number are the same, its rigidity value is bigger than current rectangular cross section wave spring to the demand that needs big rigidity wave spring under the limited condition in space has again been satisfied.

The above is only the feasible embodiment of the preferred of the present invention, and is not used to limit the scope of the present invention, so that the equivalent structure changes made by the contents of the specification and the drawings are all included in the scope of the present invention.

Claims

1. An open wave spring characterized by: the spring comprises an open wave spring body, wherein a plurality of wave crests and wave troughs are arranged on the open wave spring body, and the section of the wave spring body is in an isosceles trapezoid shape; the thickness of the wave spring body at the inner diameter is larger than that at the outer diameter.

2. The split wave spring as claimed in claim 1, wherein said wave spring body inner diameter thickness is t2, said wave spring body outer diameter thickness is t1, and the relation of the wave spring body inner and outer diameter thickness is t1 ═ 0.3-0.7 t 2.

3. The open wave spring of claim 2 wherein the relationship between the inside and outside diameters of said wave spring body is t1 ═ 0.4-0.6 t 2.