CN220037317U

CN220037317U - Composite bushing

Info

Publication number: CN220037317U
Application number: CN202320487465.9U
Authority: CN
Inventors: 查正月; 夏炳红
Original assignee: Wuxi Yiyou Locomotive Technology Co ltd
Current assignee: Wuxi Yiyou Locomotive Technology Co ltd
Priority date: 2023-03-14
Filing date: 2023-03-14
Publication date: 2023-11-17
Anticipated expiration: 2033-03-14

Abstract

The present utility model relates to a composite bushing. The utility model includes an inner liner tube; the outer lining pipe is sleeved on the lining pipe; the buffer part is arranged between the inner lining pipe and the outer lining pipe; the limiting structure is arranged between the inner lining pipe and the outer lining pipe; when the outer lining pipe extrudes the buffer part and displaces relative to the inner lining pipe, the limiting structure is used for contacting with the outer lining pipe and limiting the outer lining pipe. Through setting up limit structure, when outer lining pipe extrusion buffer portion, limit structure can provide spacing effect for the displacement size of outer lining pipe is restricted, and then reduces the deflection of buffer portion. The utility model effectively solves the problem that the buffer rubber on the bushing in the prior art is easy to deform greatly after repeated stress, thereby influencing the shock absorption and buffer effects.

Description

Composite bushing

Technical Field

The utility model relates to the technical field of bushings, in particular to a composite bushing.

Background

At present, a bushing is arranged at the connecting hole part of the shock absorber, buffer rubber is arranged on the bushing, and shock absorption and buffering in transmission are realized through the buffer rubber.

When the buffer rubber arranged on the bushing plays a role of shock absorption and buffer, the rubber is easy to deform greatly after repeated stress extrusion due to the fact that the stress is large, so that the service life of the rubber is shortened, the shock absorption and buffer effect is affected, and the bushing is easy to wear.

Disclosure of Invention

Therefore, the utility model aims to solve the technical problem that the buffer rubber on the bushing is easy to deform greatly after repeated stress in the prior art, so that the shock absorption and buffer effects are affected.

In order to solve the above technical problems, the present utility model provides a composite bushing, including:

an inner liner tube;

the outer lining pipe is sleeved on the lining pipe;

the buffer part is arranged between the inner lining pipe and the outer lining pipe;

the limiting structure is arranged between the inner lining pipe and the outer lining pipe;

when the outer lining pipe extrudes the buffer part and displaces relative to the inner lining pipe, the limiting structure is used for contacting with the outer lining pipe and limiting the outer lining pipe.

In one embodiment of the present utility model, the buffer portion has a tubular structure and is sleeved on the lining tube.

In one embodiment of the present utility model, the buffer portion includes a first end and a second end that are axially opposite, the limiting structure includes a first limiting ring and a second limiting ring, the first limiting ring is sleeved on the inner liner tube and is located beside the first end of the buffer portion, the second limiting ring is sleeved on the inner liner tube and is located beside the second end of the buffer portion, a first annular gap is left between the first limiting ring and the outer liner tube, and a second annular gap is left between the second limiting ring and the outer liner tube.

In one embodiment of the utility model, the first limiting ring and the outer side wall of the lining pipe and the second limiting ring and the outer side wall of the lining pipe are connected through interference fit.

In one embodiment of the present utility model, the materials of the first stop collar and the second stop collar each comprise plastic.

In one embodiment of the present utility model, a first end of the buffer portion abuts against the first stop collar, and a second end of the buffer portion abuts against the second stop collar.

In one embodiment of the present utility model, the central axes of the inner liner tube, the outer liner tube, the buffer portion, the first stopper ring, and the second stopper ring coincide with each other.

In one embodiment of the present utility model, the material of the buffer portion is rubber.

In one embodiment of the present utility model, the material of both the inner liner tube and the outer liner tube comprises aluminum.

In one embodiment of the present utility model,

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

according to the composite bushing, the limiting structure is arranged, so that the limiting structure can provide a limiting effect when the outer bushing extrudes the buffer part, the displacement of the outer bushing is limited, and the deformation of the buffer part is reduced. The utility model effectively solves the problem that the buffer rubber on the bushing in the prior art is easy to deform greatly after repeated stress, thereby influencing the shock absorption and buffer effects.

Drawings

In order that the utility model may be more readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.

FIG. 1 is a schematic view of the overall structure of the composite bushing of the present utility model.

Description of the specification reference numerals:

1. an inner liner tube;

2. an outer liner;

3. a buffer section;

4. a limit structure; 41a, a first limiting ring; 41b, a second limiting ring; 42a, a first annular gap; 42b, a second annular gap.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the utility model and practice it.

In the present utility model, if directions (up, down, left, right, front and rear) are described, they are merely for convenience of description of the technical solution of the present utility model, and do not indicate or imply that the technical features must be in a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, "a plurality of" means one or more, and "a plurality of" means two or more, and "greater than", "less than", "exceeding", etc. are understood to not include the present number; "above", "below", "within" and the like are understood to include this number. In the description of the present utility model, the description of "first" and "second" if any is used solely for the purpose of distinguishing between technical features and not necessarily for the purpose of indicating or implying a relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the present utility model, unless clearly defined otherwise, terms such as "disposed," "mounted," "connected," and the like should be construed broadly and may be connected directly or indirectly through an intermediate medium, for example; the connecting device can be fixedly connected, detachably connected and integrally formed; can be mechanically connected, electrically connected or capable of communicating with each other; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.

Referring to fig. 1, a composite bushing of the present utility model includes:

an inner liner 1;

an outer lining pipe 2, wherein the outer lining pipe 2 is sleeved on the inner lining pipe 1;

a buffer portion 3, wherein the buffer portion 3 is provided between the inner liner 1 and the outer liner 2;

the limiting structure 4 is arranged between the inner lining pipe 1 and the outer lining pipe 2;

when the outer liner tube 2 presses the buffer portion 3 and displaces relative to the inner liner tube 1, the limiting structure 4 is used for contacting with the outer liner tube 2 and limiting the outer liner tube 2.

Just as the background art is said, buffer rubber is liable to take place great deformation after repeated atress extrusion, and through setting up limit structure 4, when outer lining pipe 2 extrudes buffer portion 3, limit structure 4 can provide spacing effect for the displacement size of outer lining pipe 2 is restricted, and then reduces the deflection of buffer portion 3.

In this embodiment, the buffer portion 3 has a tubular structure and is sleeved on the lining tube 1. The buffer part 3 is made of rubber, can be formed by injecting glue into an integrated manner, and is wrapped on the outer side wall of the lining pipe 1.

More specifically, the buffer portion 3 includes a first end and a second end that are axially opposite, the limiting structure 4 includes a first limiting ring 41a and a second limiting ring 41b, the first limiting ring 41a is sleeved on the inner liner tube 1 and located at a side of the first end of the buffer portion 3, the second limiting ring 41b is sleeved on the inner liner tube 1 and located at a side of the second end of the buffer portion, a first annular gap 42a is left between the first limiting ring 41a and the outer liner tube 2, and a second annular gap 42b is left between the second limiting ring 41b and the outer liner tube 2.

In this embodiment, the thickness of the buffer portion 3 is not limited, and the first annular gap 42a and the second annular gap 42b are set according to the stress magnitude of the buffer portion 3 and the thickness of the mating buffer portion 3, which is not limited.

More specifically, the first stop collar 41a and the outer side wall of the liner pipe 1, and the second stop collar 41b and the outer side wall of the liner pipe 1 are all connected by interference fit; the first and second stop collars 41a and 41b are made of plastic, and have high hardness, light weight and convenient installation. In this embodiment, the first end of the buffer portion 3 abuts against the first stop collar 41a, and the second end of the buffer portion 3 abuts against the second stop collar 41b, so that the axial displacement of the buffer portion 3 can be limited by the first stop collar 41a and the second stop collar 41b when the buffer portion 3 is deformed by force.

Specifically, the central axes of the inner liner tube 1, the outer liner tube 2, the buffer portion 3, the first stopper ring 41a, and the second stopper ring 41b coincide with each other. Wherein, the material of the inner lining pipe 1 and the outer lining pipe 2 comprises aluminum, and the materials can be extruded and formed by aluminum.

By adopting the composite bushing, when the composite bushing is used, the composite bushing is assembled in the connecting hole of the shock absorber, when the outer bushing moves circumferentially or radially relative to the inner bushing 1 under the action of driving force, the outer bushing 2 extrudes the buffer part 3, so that the buffer part 3 deforms to a preset range, the inner side wall of the outer bushing is contacted with the first limiting ring 41a and the second limiting ring 41b, the buffer part 3 is prevented from deforming greatly, and the service life of the buffer part is prolonged.

Finally, it should be noted that the above-mentioned embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same, and although the present utility model has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model, and all such modifications and equivalents are intended to be encompassed in the scope of the claims of the present utility model.

Claims

1. A composite bushing, comprising:

an inner liner tube (1);

an outer lining pipe (2), wherein the outer lining pipe (2) is sleeved on the inner lining pipe (1);

a buffer part (3), wherein the buffer part (3) is arranged between the inner lining pipe (1) and the outer lining pipe (2);

the limiting structure (4) is arranged between the inner lining pipe (1) and the outer lining pipe (2);

when the outer lining pipe (2) extrudes the buffer part (3) and displaces relative to the inner lining pipe (1), the limiting structure (4) is used for contacting with the outer lining pipe (2) and limiting the outer lining pipe (2).

2. A composite bushing according to claim 1, wherein the buffer (3) is of tubular construction and is fitted over the liner tube (1).

3. A composite bushing according to claim 2, wherein the buffer portion (3) comprises a first end and a second end which are axially opposite, the limiting structure (4) comprises a first limiting ring (41 a) and a second limiting ring (41 b), the first limiting ring (41 a) is sleeved on the inner lining pipe (1) and located beside the first end of the buffer portion (3), the second limiting ring (41 b) is sleeved on the inner lining pipe (1) and located beside the second end of the buffer portion, a first annular gap (42 a) is reserved between the first limiting ring (41 a) and the outer lining pipe (2), and a second annular gap (42 b) is reserved between the second limiting ring (41 b) and the outer lining pipe (2).

4. A composite lining according to claim 3, characterized in that the first stop collar (41 a) is connected to the outer side wall of the lining pipe (1) and the second stop collar (41 b) is connected to the outer side wall of the lining pipe (1) by interference fit.

5. A composite bushing according to claim 3, wherein the material of the first stop collar (41 a) and the second stop collar (41 b) comprises plastic.

6. A composite bushing according to claim 3, wherein a first end of the buffer portion (3) abuts against the first stop collar (41 a) and a second end of the buffer portion (3) abuts against the second stop collar (41 b).

7. A composite bushing according to claim 3, wherein the central axes of the inner liner (1), the outer liner (2), the buffer (3), the first stop collar (41 a) and the second stop collar (41 b) coincide.

8. A composite bushing according to any of claims 1-7, wherein the cushioning portion (3) is made of rubber.

9. A composite lining according to any one of claims 1-7, characterized in that the material of the inner lining tube (1) and the outer lining tube (2) each comprise aluminium.