CN216478640U

CN216478640U - Butterfly washer and self-locking butterfly washer combined structure of automobile shock absorber

Info

Publication number: CN216478640U
Application number: CN202122594544.3U
Authority: CN
Inventors: 樊焕茹; 吴双; 史丹
Original assignee: Sichuan Ningjiang Shanchuan Machinery Co ltd
Current assignee: Sichuan Ningjiang Shanchuan Machinery Co ltd
Priority date: 2021-10-27
Filing date: 2021-10-27
Publication date: 2022-05-10
Anticipated expiration: 2031-10-27

Abstract

The combined structure of the butterfly washer and the self-locking butterfly washer of the automobile shock absorber comprises the butterfly washer and a shock absorber piston rod, wherein the butterfly washer is sleeved on the shock absorber piston rod, a rubber shock pad A, a shock absorber and automobile chassis connecting piece, a rubber shock pad B, the self-locking butterfly washer and a self-locking nut are arranged above the butterfly washer and are all sleeved on the shock absorber piston rod, the contact surface of the self-locking butterfly washer and the rubber shock pad B is a smooth surface, the other surface of the self-locking butterfly washer is attached to the self-locking nut, a plurality of tip protrusions are arranged at the inner circle of the self-locking butterfly washer, the self-locking butterfly washer is used, in the rotating and screwing process of the self-locking nut, the 4 tip protrusions in the inner circle of the self-locking butterfly washer are inwards extruded and deformed and are pressed into the thread of the piston rod, so that the shock absorber piston rod, the self-locking butterfly washer and the self-locking nut are connected into a whole, and when the rubber shock pad is flattened and can not be completely restored, a gap is formed between the self-locking butterfly washer and the locking nut, and the problem of abnormal sound caused by metal impact is solved.

Description

Butterfly washer and self-locking butterfly washer combined structure of automobile shock absorber

Technical Field

The utility model belongs to the technical field of automobile part manufacturing, and particularly relates to a combined structure of a butterfly-shaped gasket and a self-locking butterfly-shaped gasket of an automobile shock absorber.

Background

When the automobile shock absorber or the heavy truck shock absorber is connected with an automobile body or a cab, a rubber shock pad with shock absorption performance is used, and a metal gasket is required to be used between the rubber shock pad and the automobile body.

However, the inventor finds that the prior arts at least have the following technical problems in the practical use process:

1. during the use process, a large amount of metal collision damage between the washer and the nut and the damage fault of the rubber shock pad occur.

2. Through discovering after the shock absorber of a large amount of feedback metal striking abnormal sound and the back shock absorber that three packages returned and driver's cabin shock absorber are analyzed, the metal packing ring not only can strike the nut and cause the damage to still probably fish tail rubber shock pad, cause a large amount of automobile shock attenuation problems.

Disclosure of Invention

Aiming at the problems that in the prior art, the metal washer and the nut are easy to damage due to collision, and the rubber shock pad is damaged by the washer to influence the shock absorption effect of the automobile, the utility model provides a butterfly washer and self-locking butterfly washer combined structure of an automobile shock absorber, which aims to: through the design improvement to the metal packing ring, effectively reduce abnormal sound, the damage problem that metal packing ring and nut striking caused, and through the inner arc corner that improves the metal packing ring, also can effectively avoid it to destroy the structure of rubber shock pad.

In order to achieve the purpose, the utility model adopts the technical scheme that: the butterfly-shaped gasket and self-locking butterfly-shaped gasket combined structure comprises a butterfly-shaped gasket and a damper piston rod, wherein the butterfly-shaped gasket is sleeved on the damper piston rod, a rubber damping pad A, a damper and automobile chassis connecting piece, a rubber damping pad B, a self-locking butterfly-shaped gasket and a self-locking nut are arranged above the butterfly-shaped gasket, the self-locking butterfly-shaped gasket and the self-locking nut are all sleeved on the damper piston rod, the contact surface of the self-locking butterfly-shaped gasket and the rubber damping pad B is a smooth surface, the other surface of the self-locking butterfly-shaped gasket is attached to the self-locking nut, and a plurality of tip protrusions are arranged at the inner circle of the self-locking butterfly-shaped gasket.

The further preferable technical scheme is as follows: 4 pointed protrusions are arranged in the self-locking butterfly washer at a far distance.

The further preferable technical scheme is as follows: the butterfly-shaped gasket and the self-locking butterfly-shaped gasket are in interference fit with the rubber shock pad A, B in the size of the inner arc.

The further preferable technical scheme is as follows: the inner arc edge of the self-locking butterfly-shaped gasket is designed to be a chamfer.

The further preferable technical scheme is as follows: the self-locking nut is in interference fit with the protrusion at the tip end of the self-locking butterfly washer.

The further preferable technical scheme is as follows: the cross section of the inner circle of the self-locking butterfly-shaped gasket is an inclined plane, and the cross section of the inner circle of the opening of the butterfly-shaped gasket is a plane.

The further preferable technical scheme is as follows: the included angle between the inclined plane of the cross section of the inner circle of the self-locking butterfly-shaped gasket and the horizontal line is less than 15 degrees.

The further preferable technical scheme is as follows: the length of the tip protrusion of the self-locking butterfly-shaped gasket is less than 2 mm.

The further preferable technical scheme is as follows: the self-locking butterfly washer and the butterfly washer are made of common metal materials, and the self-locking nut is made of stainless steel materials.

Compared with the prior art, the technical scheme of the utility model has the following advantages:

1. in the newly designed shock absorber connecting structure, the metal gasket is changed into the butterfly gasket and the self-locking butterfly gasket, so that the rubber shock pad is influenced by the extrusion of the arc inner surface when being compressed and deformed, and the outward turning possibility of rubber is greatly reduced.

2. In the newly designed shock absorber connecting structure, the self-locking butterfly washer is used, so that in the rotating and tightening process of the self-locking nut, 4 tip protrusions in the inner circle of the self-locking butterfly washer are extruded inwards to deform and are pressed into the thread of the piston rod, the shock absorber piston rod, the self-locking butterfly washer and the self-locking nut are connected into a whole, the damping capacity is not attenuated due to rubber elasticity, when the rubber damping pad is flattened and cannot be completely restored, a gap is formed between the self-locking butterfly washer and the locking nut, and the problem of abnormal sound caused by metal impact is solved.

3. The butterfly-shaped gasket and the self-locking butterfly-shaped gasket are used for replacing an original plane metal gasket, so that the problems of metal abnormal sound and rubber shock pads in the outward turning process are solved on the premise of not changing the installation sequence of parts, and the service life of the shock absorber is prolonged.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic view of an installation structure of a butterfly washer and a self-locking butterfly washer combined structure of an automobile shock absorber.

Fig. 2 is a schematic structural view of a butterfly washer according to the present invention.

Fig. 3 is a schematic structural view of a self-locking butterfly washer according to the present invention.

Fig. 4 is an enlarged view of a portion of a self-locking butterfly washer of the present invention after installation.

The labels in the figure are respectively: the automobile chassis self-locking device comprises a butterfly-shaped gasket 1, a self-locking butterfly-shaped gasket 2, a shock absorber piston rod 3, rubber shock absorbing pads A and 5, a shock absorber and automobile chassis connecting piece 6, rubber shock absorbing pads B and 7, self-locking nuts 8, tip protrusions 9, an inner arc of the self-locking butterfly-shaped gasket 10 and an inner circle of the self-locking butterfly-shaped gasket 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions in the embodiments of the present invention are clearly and completely described below, and it is obvious that the described embodiments are a part of the embodiments of the present invention, not all of the embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the utility model as claimed, but is merely representative of selected embodiments of the utility model.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

Example 1:

as shown in figure 1, the combined structure of the butterfly washer and the self-locking butterfly washer of the automobile shock absorber comprises a butterfly washer 1 and a shock absorber piston rod 3, the butterfly washer 1 is sleeved on the shock absorber piston rod 3, a rubber shock absorption pad A4, a shock absorber and automobile chassis connecting piece 5, a rubber shock absorption pad B6, a self-locking butterfly washer 2 and a self-locking nut 7 are arranged above the butterfly washer 1 and are all sleeved on the shock absorber piston rod 3, the contact surface of the self-locking butterfly washer 2 and the rubber shock pad B6 is a smooth surface, the other surface of the self-locking butterfly washer is attached to the self-locking nut 7, a plurality of pointed protrusions 9 are arranged at the position of a circle 10 in the self-locking butterfly washer, 4 pointed protrusions 8 are arranged at the position of the circle 10 in the self-locking butterfly washer, the size of the inner arc of the butterfly washer and the size of the inner arc 9 of the self-locking butterfly washer are in interference fit with the rubber shock pad A, B6, and the self-locking nut 7 is in interference fit with the pointed protrusions 8 of the self-locking butterfly washer 2.

In the combined structure of the butterfly-shaped gasket and the self-locking butterfly-shaped gasket of the automobile shock absorber, the metal gasket is changed into the butterfly-shaped gasket 1 and the self-locking butterfly-shaped gasket 2, so that the rubber shock pad A/B6 is influenced by the extrusion of the arc-shaped inner surface when being compressed and deformed, and the possibility of rubber eversion is greatly reduced.

In the combined structure of the butterfly washer and the self-locking butterfly washer of the automobile shock absorber, the self-locking butterfly washer 2 is used, so that in the process of screwing the self-locking nut 7 in a rotating manner, 4 tip protrusions 8 in the inner circle of the self-locking butterfly washer 3 are extruded inwards to deform and pressed into the thread of the piston rod, the piston rod 3 of the shock absorber, the self-locking butterfly washer 2 and the self-locking nut 7 are connected into a whole, the damping capacity of rubber elasticity is not attenuated any more, and when the rubber shock pad is flattened and can not be completely restored, a gap is generated between the self-locking butterfly washer 2 and the self-locking nut 7, so that the problem of abnormal sound generated by metal impact is solved.

Furthermore, the edge of an inner arc 9 of the self-locking butterfly washer is designed to be a chamfer, the cross section of an inner circle 10 of the self-locking butterfly washer is an inclined plane, the cross section of an inner circle of an opening of the butterfly washer is a plane, the included angle between the inclined plane of the cross section of the inner circle 10 of the self-locking butterfly washer and a horizontal line is less than 15 degrees, as shown in fig. 4, the length of a protrusion 8 at the tip of the self-locking butterfly washer 2 is less than 2mm, the self-locking butterfly washer 2 and the butterfly washer 1 are made of common metal materials, and the self-locking nut 7 is made of stainless steel materials.

And applying a specified torsional moment to the self-locking nut 7, so that the tip protrusion 8 which extrudes the inner circle 10 of the self-locking butterfly washer is stressed to sink and deform, fills in the thread gap, and destroys the thread to form self-locking.

The butterfly-shaped gasket 1 and the self-locking butterfly-shaped gasket 2 are used for replacing an original plane metal gasket, and on the premise of not changing the installation sequence of parts, the parts are only required to be sequentially sleeved on the piston rod of the shock absorber, so that the problems of abnormal metal sound and outward turning of the rubber shock pad can be solved, the service life of the shock absorber is prolonged, and the shock absorber is suitable for being popularized in automobile rear shock absorbers and automobile cab shock absorber production enterprises.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and these modifications and adaptations should be considered within the scope of the utility model.

Claims

1. The combined structure of the butterfly-shaped gasket and the self-locking butterfly-shaped gasket of the automobile shock absorber is characterized by comprising the butterfly-shaped gasket and a shock absorber piston rod, wherein the butterfly-shaped gasket is sleeved on the shock absorber piston rod, a rubber shock pad A, a shock absorber and automobile chassis connecting piece, a rubber shock pad B, the self-locking butterfly-shaped gasket and a self-locking nut are arranged above the butterfly-shaped gasket and are all sleeved on the shock absorber piston rod, the contact surface of the self-locking butterfly-shaped gasket and the rubber shock pad B is a smooth surface, the other surface of the self-locking butterfly-shaped gasket is attached to the self-locking nut, and a plurality of tip protrusions are arranged at the inner circle.

2. The combination of a butterfly washer and a self-locking butterfly washer of a vehicle shock absorber as claimed in claim 1, wherein said self-locking butterfly washer is further provided with 4 pointed protrusions at the inner distal end.

3. The combination structure of a butterfly washer and a self-locking butterfly washer of an automobile shock absorber as claimed in claim 1, wherein the butterfly washer and the self-locking butterfly washer have inner arc dimensions in interference fit with the rubber shock pad A, B.

4. The combined structure of a butterfly washer and a self-locking butterfly washer of an automobile shock absorber according to claim 1, wherein the inner arc edge of the butterfly washer is chamfered.

5. The combined structure of the butterfly washer and the self-locking butterfly washer of the automobile shock absorber as claimed in claim 1, wherein the self-locking nut is in interference fit with the protrusion at the tip of the self-locking butterfly washer.

6. The combined structure of the butterfly washer and the self-locking butterfly washer of the automobile shock absorber as claimed in claim 1, wherein the cross section of the inner circle of the self-locking butterfly washer is an inclined plane, and the cross section of the inner circle of the opening of the butterfly washer is a plane.

7. The combined structure of a butterfly washer and a self-locking butterfly washer of an automobile shock absorber according to claim 6, wherein an included angle between the inclined plane of the inner circular cross section of the self-locking butterfly washer and a horizontal line is less than 15 °.

8. The combination of a butterfly washer and a self-locking butterfly washer of a vehicle shock absorber as claimed in claim 1, wherein the length of the protrusion of the tip of the self-locking butterfly washer is less than 2 mm.

9. The combined structure of the butterfly washer and the self-locking butterfly washer of the automobile shock absorber according to claim 1, wherein the self-locking butterfly washer and the butterfly washer are made of common metal, and the self-locking nut is made of stainless steel.