CN221897018U - A vibration damper connection structure - Google Patents

Abstract

The utility model discloses a shock absorber connecting structure which comprises a shock absorber, a connecting rod, an adjusting gasket, a locking nut, a U-shaped bracket and a shock absorber end cover, wherein one end of the shock absorber is connected with the shock absorber end cover, the connecting rod penetrates through the shock absorber end cover, the connecting rod comprises a large-diameter section and a small-diameter section, a sealing ring is arranged between the large-diameter section and the shock absorber end cover, the U-shaped bracket is connected with the small-diameter section of the connecting rod, a transition gasket is arranged between the U-shaped bracket and the shock absorber end cover, and the transition gasket is arranged on the small-diameter section. According to the utility model, the connecting rod is designed to be stepped and divided into the large-diameter section and the small-diameter section, the stress of the U-shaped bracket can be transmitted to the connecting rod through the transition gasket instead of being directly pressed on the end cover of the shock absorber, when the inclination angle of the shock absorber changes, the condition of uneven stress on two sides of the end cover can not occur, and leakage of the sealing ring caused by uneven abrasion is avoided.

Description

A vibration damper connection structure

Technical Field

The utility model belongs to the field of automobile parts, and in particular relates to a shock absorber connection structure.

Background Art

For the structure of the rear suspension of the cab using a lateral shock absorber, a transition bracket must be added to meet the connection requirements of the lateral shock absorber, hydraulic lock and main shock absorber. When the traditional eye-type shock absorber is connected to the transition bracket, the bracket must be installed as a whole on the main shock absorber cover to meet the positioning requirements, causing the end cover of the shock absorber to be subjected to the force from the cab for a long time. When the inclination angle of the shock absorber changes, the imbalance of force on both sides of the end cover tends to worsen. During long-term use, it is easy to cause uneven wear of the shock absorber seal, thereby causing leakage.

For the suspension matched with the lateral shock absorber, its main structural form consists of shock absorber, lifting lug, connecting rod, U-shaped bracket and mounting bolts. Its main feature is that the U-shaped bracket is directly in contact with the upper cover of the shock absorber, and the lifting lug is assembled with the U-shaped bracket through an axial bolt. Its simplified mechanical model is shown in a) in Figure 3, which belongs to a four-bar linkage.

This structure directly assembles the U-shaped bracket on the upper end cover of the airbag, causing the force from the cab to be directly transmitted to the airbag end cover through the bracket. Since the airbag is not arranged completely vertically and the inclination angle of the airbag may change at any time during use, the forces on the left and right sides of the end cover are inconsistent. Long-term use will cause local extrusion of the airbag sealing ring, causing accelerated wear on one side, resulting in air leakage, which will affect the service life of the airbag.

Utility Model Content

In order to overcome the shortcomings of the prior art, the utility model patent provides a shock absorber connection structure, which eliminates the uneven force on the airbag end cover and reduces the wear of the seal. The connection structure can effectively transfer the load from the cab to the shock absorber connecting rod, eliminate the problem of uneven force on the shock absorber cover, reduce the uneven wear of the seal, and ensure the reliability of the seal.

In order to solve the above problems existing in the prior art, the technical solution adopted by the utility model is:

A shock absorber connection structure comprises a shock absorber, a connecting rod, an adjusting gasket, a locking nut, a U-shaped bracket and a shock absorber end cover.

One end of the shock absorber is connected with a shock absorber end cover.

The connecting rod passes through the shock absorber end cover, and the connecting rod comprises a large diameter section and a small diameter section. A sealing ring is arranged between the large diameter section and the shock absorber end cover.

The U-shaped bracket is connected to the small-diameter section of the connecting rod, and a transition gasket is arranged between the U-shaped bracket and the end cover of the shock absorber, and the transition gasket is arranged on the small-diameter section.

The connecting rod is designed to be stepped and divided into a large diameter section and a small diameter section. The force of the U-shaped bracket will be transferred to the connecting rod through the transition gasket instead of directly pressing on the shock absorber end cover. When the inclination angle of the shock absorber changes, there will be no uneven force on both sides of the end cover, thus avoiding leakage of the sealing ring due to uneven wear.

The connecting rod of the shock absorber has a stepped structure. The upper cover of the airbag is assembled on the large diameter section of the connecting rod, the transition gasket is assembled on the small diameter section of the connecting rod, and then the U-shaped bracket is assembled on the small diameter section of the connecting rod. The bottom surface of the U-shaped bracket contacts the transition gasket. The small diameter section of the connecting rod has an external thread. The adjusting gasket is mounted on the U-shaped bracket and finally fixed to the connecting rod through a locking nut. Finally, the protective cover is installed on the outside of the locking nut.

By changing the connection method between the U-shaped bracket and the shock absorber end cover, the original force acting on the shock absorber end cover is transmitted to the connecting rod through the transition gasket, thereby solving the problem of inconsistent force on the shock absorber end cover and eliminating abnormal wear and leakage of the sealing ring.

Furthermore, the small diameter section is threadedly connected to the locking nut, an adjustment gasket is provided between the locking nut and the U-shaped bracket, the locking nut is connected to the small diameter section, and the U-shaped bracket is tightened by the locking nut to ensure the stability of the U-shaped bracket connection.

Furthermore, the locking nut is connected to a protective cover. By setting the protective cover, the locking nut is protected by the protective cover. The transition gasket is made of metal and can effectively transfer pressure to the connecting rod.

The beneficial effects of the utility model are:

1. The utility model avoids direct contact between the U-shaped bracket and the shock absorber cover, thereby transmitting the force to the connecting rod, eliminating the problem of uneven force on the shock absorber cover, thereby slowing down the wear of the seal, which is beneficial to increasing the service life of the seal and reducing the after-sales failure rate.

2. The utility model reduces the upper end lifting ear of the shock absorber, simplifies the production process, and assembles the U-shaped bracket and the shock absorber together. When assembling the whole vehicle, one bolt can be reduced, which reduces the assembly time and saves the cost of the whole vehicle.

3. An adjustment washer is provided between the U-shaped bracket and the fastening nut of the utility model, which, when used in conjunction with the locking nut, can increase the contact area with the plane of the U-shaped bracket and reduce the risk of thread loosening.

4. The outer end of the locking nut of the utility model is provided with a plastic protective cover, which can prevent the thread from being exposed to the external environment for a long time, slow down the rust of the thread due to incomplete surface coating after assembly, and facilitate after-sales disassembly and assembly.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a schematic diagram of the installation of the utility model;

Fig. 2 is a cross-sectional view taken along the A-A direction in Fig. 1;

In FIG. 3 , a) is a simplified mechanical model of a four-bar linkage, and b) is a simplified mechanical model of a three-bar linkage.

In the figure: 1- shock absorber; 2- connecting rod; 3- transition gasket; 4- U-shaped bracket; 5- locking nut; 6- adjusting gasket; 7- protective cover; 8- shock absorber end cover; 9- sealing ring.

DETAILED DESCRIPTION

The utility model will be further described below in conjunction with the accompanying drawings and the accompanying drawings.

In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

The terms “first”, “second”, “third”, etc. are only used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

Embodiment 1:

As shown in FIGS. 1-3 , a shock absorber connection structure includes a shock absorber 1 , a connecting rod 2 , an adjustment gasket 6 , a locking nut 5 , a U-shaped bracket 4 and a shock absorber end cover 8 .

One end of the shock absorber 1 is connected to a shock absorber end cover 8 .

The connecting rod 2 passes through the shock absorber end cover 8, and the connecting rod 2 includes a large diameter section and a small diameter section (the large diameter section and the small diameter section are not marked in the figure, the large diameter section refers to a section with a relatively large diameter, and the small diameter section refers to a section with a relatively small diameter), and a sealing ring 9 is provided between the large diameter section and the shock absorber end cover 8.

The U-shaped bracket 4 is connected to the small diameter section of the connecting rod 2. A transition gasket 3 is provided between the U-shaped bracket 4 and the shock absorber end cover 8. The transition gasket 3 is provided at the small diameter section.

The connecting rod 2 is designed to be stepped and divided into a large diameter section and a small diameter section. The force of the U-shaped bracket 4 will be transmitted to the connecting rod 2 through the transition gasket 3 instead of directly pressing on the shock absorber end cover 8. When the inclination angle of the shock absorber 1 changes, there will be no uneven force on both sides of the end cover, avoiding leakage of the sealing ring 9 due to uneven wear.

The connecting rod 2 of the shock absorber 1 is a stepped structure. The upper cover plate of the airbag (shock absorber end cover 8) is assembled on the large diameter section of the connecting rod 2, the transition gasket 3 is assembled on the small diameter section of the connecting rod 2, and then the U-shaped bracket 4 is assembled on the small diameter section of the connecting rod 2. The bottom surface of the U-shaped bracket 4 is in contact with the transition gasket 3. The small diameter section of the connecting rod 2 has an external thread. The adjusting gasket 6 is mounted on the U-shaped bracket 4 and finally fixedly connected to the connecting rod 2 through the locking nut 5. Finally, the protective cover 7 is installed on the outside of the locking nut 5.

By changing the connection mode between the U-shaped bracket 4 and the shock absorber end cover 8, the original force acting on the shock absorber end cover 8 is transferred to the connecting rod 2 through the transition gasket 3, thereby solving the problem of inconsistent force on the shock absorber end cover 8 and eliminating the abnormal wear and leakage of the sealing ring 9. The simplified force model is shown in b) of Figure 3. The improved force model is a three-link mechanism, and the force on the shock absorber 1 is always along the axial direction of the connecting rod 2.

Embodiment 2:

On the basis of Example 1, the small diameter section is threadedly connected to the locking nut 5 , and an adjusting gasket 6 is provided between the locking nut 5 and the U-shaped bracket 4 .

The locking nut 5 is connected to the small diameter section, and the U-shaped bracket 4 is compressed by the locking nut 5 to ensure the stability of the connection of the U-shaped bracket 4.

The locking nut 5 is connected with a protective cover 7 .

By providing the protection cover 7 , the locking nut 5 is protected by the protection cover 7 .

The transition gasket 3 is made of metal.

The transition gasket 3 is made of metal and can effectively transfer the pressure to the connecting rod 2 .

The present utility model is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present utility model fall within the protection scope of the present utility model.

Claims (4)

1. A shock absorber connection structure, characterized in that it comprises a shock absorber (1), a connecting rod (2), an adjustment washer (6), a locking nut (5), a U-shaped bracket (4) and a shock absorber end cover (8); One end of the shock absorber (1) is connected to a shock absorber end cover (8); The connecting rod (2) passes through the shock absorber end cover (8), the connecting rod (2) comprises a large diameter section and a small diameter section, and a sealing ring (9) is provided between the large diameter section and the shock absorber end cover (8); The U-shaped bracket (4) is connected to the small-diameter section of the connecting rod (2), and a transition gasket (3) is provided between the U-shaped bracket (4) and the shock absorber end cover (8), and the transition gasket (3) is provided on the small-diameter section. 2. The shock absorber connection structure according to claim 1 is characterized in that: the small diameter section is threadedly connected to the locking nut (5), and an adjustment gasket (6) is provided between the locking nut (5) and the U-shaped bracket (4). 3. The shock absorber connection structure according to claim 1, characterized in that the locking nut (5) is connected to a protective cover (7). 4. The shock absorber connection structure according to claim 1, characterized in that the transition gasket (3) is made of metal.