CN214138689U - Sliding bush and vehicle - Google Patents

Abstract

The utility model provides a sliding bush and a vehicle, the sliding bush of the utility model mainly comprises a bush main body, an installation pipe and a sliding sleeve, wherein the bush main body comprises an inner pipe, an outer pipe and a rubber part which vulcanizes and connects the inner pipe and the outer pipe together; the installation pipes are inserted into the inner pipe and comprise at least two installation branch pipes which are sequentially arranged along the axial direction of the inner pipe, the installation branch pipes at the end parts are provided with outer blocking parts, the installation branch pipes are fixedly connected together through an external connecting piece penetrating through the installation branch pipes, and the outer blocking parts limit the axial movement of the inner pipe; the sliding sleeve is clamped between the inner pipe and the mounting pipe. The utility model discloses a sliding bush, by the axial motion of outer fender portion restriction inner tube, through each installation branch pipe of outside connecting piece interlude, both can divide union coupling together with each installation, the installation of the sliding bush of being convenient for again, in addition, this sliding bush can promote the torsional durability of sliding bush around self axis satisfying under the prerequisite of torsional rigidity adjustment space increase.

Description

Sliding bush and vehicle

Technical Field

The utility model relates to a vehicle parts technical field, in particular to slip bush. And simultaneously, the utility model discloses still relate to an use vehicle that has this sliding bush.

Background

The basic functions of the rubber bushing are: (1) connecting the steering knuckle with an auxiliary frame; (2) bearing dynamic and static forces; (3) isolating vibrations of the frame or body due to the excitation.

Along with the trend development of miniaturization of the rubber bushing, the radial thickness of the rubber body is reduced, and the axial torsion endurance check of the rubber bushing is more strict. Therefore, in order to better adapt to market demands, adjustable sliding bushes need to be developed, the durability of products is improved, and the NVH effect of the whole vehicle is better met according to the requirements of customers on torsional rigidity. According to the practical vehicle stress analysis of the bushing, the sliding bushing is applied to the practical vehicle position with strict torsion check, such as a front suspension bushing and a rear suspension control arm bushing.

However, the existing suspension bushing, in terms of stiffness performance: the adjustment of the torsional rigidity is limited, and the condition that the small torsional rigidity cannot meet the requirement of a customer exists; in terms of durability performance: the boundary size of the product is small, so that the colloid is thin, the torsion angle is limited, and if the product is large in torsion angle, the torsion durability of the product is poor; in addition, the existing bushing has more parts and is inconvenient to assemble.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a sliding bush, convenient assembling and performance are better.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a sliding bushing, comprising:

the bushing comprises a bushing main body and a bushing body, wherein the bushing main body comprises an inner pipe, an outer pipe sleeved outside the inner pipe and a rubber piece arranged between the inner pipe and the outer pipe and used for vulcanizing and connecting the inner pipe and the outer pipe together;

the installation pipe is inserted into the inner pipe and comprises at least two installation branch pipes which are sequentially arranged along the axial direction of the inner pipe, an external blocking part is arranged on the installation branch pipe at the end part, the installation branch pipes are fixedly connected together through an external connecting piece penetrating through the installation branch pipes, and the external blocking part limits the axial movement of the inner pipe;

and the sliding sleeve is clamped between the inner pipe and the mounting pipe, and when the torsion force exerted on the sliding sleeve by the inner pipe exceeds a preset threshold value due to the fact that the bushing main body bears external force, the sliding sleeve rotates around the mounting pipe along with the inner pipe.

Furthermore, the installation pipe comprises two installation branch pipes, and the outer blocking parts are arranged on the installation branch pipes.

Further, the outer blocking portion comprises a first flanging arranged at the end portion of the installation branch pipe.

Furthermore, a second flanging is formed at the edge of the first flanging, and the second flanging is bent towards the inner pipe.

Furthermore, the sliding sleeve comprises at least two sliding sub-sleeves which are sequentially arranged along the axial direction of the inner pipe, and an inner blocking part which is arranged between the inner pipe and the outer blocking part is formed on the sliding sub-sleeves at the end parts.

Furthermore, the sliding sleeve comprises two sliding sub-sleeves, and each sliding sub-sleeve is provided with the inner blocking part.

Furthermore, the inner blocking part comprises a third flanging arranged at the end part of the sliding branch sleeve.

Further, the external connector comprises a bolt pair for connecting the mounting branch pipes.

Further, a middle pipe is embedded in the rubber part.

Compared with the prior art, the utility model discloses following advantage has:

sliding bush divide into two at least installations through will installing the pipe and divide the pipe to each installation divides to set up outer fender portion on managing, can be by the axial motion of outer fender portion restriction inner tube, wear through each installation and divide the pipe through external connecting piece, both can divide union coupling together with each installation, the installation of the sliding bush of being convenient for again, under the prerequisite that satisfies torsional rigidity adjustment space increase, can promote sliding bush around the torsional durability of self axis, thereby promote the NVH performance of product and operate steady characteristic.

In addition, set up two installations and divide the pipe to all set up outer fender portion on each installation divides the pipe, can further improve the assembly convenience. The outer blocking portion is set as the first flanging, the second flanging is formed on the first flanging, the processing is convenient, and the inner pipe can be well limited to move along the self axial direction.

In addition, the sliding sleeves are arranged into two sliding sub-sleeves, and the inner blocking parts are arranged on the sliding sub-sleeves, so that the assembly convenience can be further improved.

Another object of the present invention is to provide a vehicle, including a steering knuckle and a sub-frame, wherein the steering knuckle and the sub-frame are connected with a sliding bush therebetween.

Vehicle and aforementioned sliding bush have the same beneficial effect for prior art, no longer describe herein.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a top view of a sliding bush according to a first embodiment of the present invention;

FIG. 2 is a cross-sectional view A-A of the structure shown in FIG. 1;

fig. 3 is a schematic structural diagram of a middle tube according to a first embodiment of the present invention;

FIG. 4 is a top view of the structure shown in FIG. 3;

fig. 5 is a cross-sectional view B-B of the structure shown in fig. 4.

Description of reference numerals:

1. an inner tube; 2. an outer tube; 3. a rubber member; 4. installing branch pipes; 5. a middle tube; 6. sliding and sleeving;

401. a first flanging; 402. second flanging;

601. and a third flanging.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, the terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In addition, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless otherwise specifically limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to a sliding bush which mainly comprises a bush main body, a mounting pipe and a sliding sleeve clamped between the bush main body and the mounting pipe. Wherein, the bush main part includes inner tube, outer tube and connects the rubber spare between inner tube and outer tube.

Based on the above description of the overall structure, an exemplary structure of the sliding bush of the present embodiment is shown in fig. 1 and 2, in which a mounting pipe, a sliding bush, and a bush main body are sequentially arranged from inside to outside. In order to facilitate a better understanding of the present embodiment, the structure of the sleeve body will be briefly described below.

In a preferred possible embodiment, the liner body mainly comprises an inner pipe 1, a middle pipe 5, an outer pipe 2 and a rubber member 3. Wherein, inner tube 1 and outer tube 2 are the cover tube-shape, and the structure of well pipe 5 can refer to 3 to 5 and show, and one side of well pipe 5 is equipped with the opening, and this opening link up the length direction setting of well pipe 5 for the cross section of well pipe 5 is close circularly, and rubber spare 3 then is used for vulcanizing inner tube 1, well pipe 5, outer tube 2 three and links together.

It should be understood here that, as in the above construction of the liner main body, in addition to the inner pipe 1, the middle pipe 5, the outer pipe 2 and the rubber member 3, the middle pipe 5 may be omitted, i.e., the liner main body includes only the inner pipe 1, the outer pipe 2 and the rubber member 3, but this makes the liner main body relatively weak in durability.

The installation pipe is inserted into the inner pipe 1, and in a preferred embodiment, the installation pipe comprises two installation branch pipes 4, and each installation branch pipe 4 is provided with an external stop portion. In a specific structure, the outer blocking portion comprises a first flange 401 arranged at the end of the installation branched pipe 4, a second flange 402 is formed at the edge of the first flange 401, and the second flange 402 is bent towards the inner pipe 1. In this structure, the outer retaining portion may include an annular flange circumferentially disposed around the mounting extension 4, or a plurality of flanges circumferentially spaced around the mounting extension 4.

It should be noted that, in addition to two mounting branched pipes 4, the mounting pipe may further include three or more mounting branched pipes 4, each mounting branched pipe 4 has a uniform radial dimension and is sequentially arranged along the axial direction of the inner pipe 1, the mounting branched pipes 4 at the two ends may have the shape as described above with the outer blocking portion, and the mounting branched pipe 4 in the middle is in a sleeve shape. That is, the installation pipe in this embodiment may include at least two installation branched pipes 4 that are sequentially arranged along the axial direction of the inner pipe 1, but the installation branched pipes 4 are more in number, which may result in an increase in the difficulty of assembly.

In the above structure, each mounting branch pipe 4 can be fixedly connected together through an external connecting piece penetrating through the mounting branch pipe, and due to the connection, the external blocking part of the mounting pipe forms a limit to the axial movement of the inner pipe 1 along the mounting branch pipe. Here, the external connection member is preferably a bolt pair for connecting the mounting branch pipes 4.

The sliding sleeve is clamped between the inner tube 1 and the mounting tube, and in a preferred embodiment, the sliding sleeve comprises at least two sliding sub-sleeves 6, and each sliding sub-sleeve 6 is provided with an inner stop portion, and in this embodiment, the inner stop portion comprises a third flange 601 arranged at an end of the sliding sub-sleeve 6. In this structure, the internal blocking portion may include an annular flange circumferentially disposed around the sliding sleeve 6, or a plurality of flanges circumferentially spaced around the sliding sleeve 6.

It should be understood here that the sliding sleeve may comprise, instead of two sliding sub-sleeves 6, three or more sliding sub-sleeves 6, each having a uniform radial dimension and being arranged in series in the axial direction of the inner tube 1, the shape of the sliding sub-sleeves 6 at the two ends being as described above with reference to the configuration with the inner stop, while the sliding sub-sleeve 6 in the middle is sleeve-shaped. That is, the sliding sleeve of the present embodiment may include at least two sliding sub-sleeves 6 sequentially arranged in the axial direction of the inner pipe 1, but the assembly process is complicated due to the large number of the sliding sub-sleeves 6.

Finally, the sliding sleeve 6 comprises a metal framework and a coating coated inside the metal framework, the outer wall of the sliding sleeve 6 is connected with the inner pipe 1 in an interference fit mode, and the inner wall of the sliding sleeve 6 is connected with the mounting pipe in an interference fit mode.

Due to the arrangement of the structure, when the torsional force applied to the sliding sleeve by the inner tube 1 due to the fact that the bushing main body bears the external force exceeds the preset threshold value, the sliding sleeve rotates around the installation tube along with the inner tube 1, and the torsional characteristic of the sliding bushing can be adjusted by adjusting the numerical range of the preset threshold value, namely the range of the sliding friction force between the sliding sleeve and the installation tube, so that the problem that the existing torsional rigidity adjusting space is limited is solved.

When the concrete application, the outer tube 2 of bush main part can link firmly together with current back suspension, and the installation pipe is fixed in the vice fastening of bolt, and when the axial torsional force that the back suspension given was received to the bush main part, rubber spare 3 took place to cut deformation, and when the moment of torsion of slip bush reached the setting value, the slip cap took place to rotate around the installation pipe, can make torsional rigidity keep 0N.m/°.

The sliding bush described in this embodiment divides the installation pipe into at least two installation branch pipes 4, and sets up outer retaining parts on each installation branch pipe 4, can be by the axial motion of outer retaining part restriction inner tube 1, wear through each installation branch pipe 4 through external connecting piece, both can link together each installation branch pipe 4, the installation of the sliding bush of being convenient for again, under the prerequisite that satisfies torsional rigidity adjustment space increase, can promote the torsional durability of sliding bush around self axis, thereby promote the NVH performance and the steady characteristic of operation of product.

Example two

The embodiment relates to a vehicle, which comprises a steering knuckle and a subframe, wherein a sliding bush in the first embodiment is connected between the steering knuckle and the subframe. The structure of the steering knuckle and the subframe can be referred to in the prior art.

The vehicle of this embodiment is through the sliding bush who uses embodiment one, and convenient assembling not only, and can satisfy under the prerequisite that torsional rigidity adjusted the space increase, promote the torsional durability of sliding bush around self axis to promote the NVH performance and the steady characteristic of operation of product, have better practicality.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A sliding bushing, characterized by comprising:

the bushing comprises a bushing main body and a bushing body, wherein the bushing main body comprises an inner pipe (1), an outer pipe (2) sleeved outside the inner pipe (1), and a rubber piece (3) arranged between the inner pipe (1) and the outer pipe (2) and used for vulcanizing and connecting the inner pipe (1) and the outer pipe (2) together;

the installation pipe is inserted into the inner pipe (1), the installation pipe comprises at least two installation branch pipes (4) which are sequentially arranged along the axial direction of the inner pipe (1), an external blocking part is arranged on the installation branch pipe (4) at the end part, the installation branch pipes (4) are fixedly connected together through an external connecting piece penetrating through the installation branch pipes, and the external blocking part is used for limiting the axial movement of the inner pipe (1) along the installation branch pipes;

the sliding sleeve is clamped between the inner tube (1) and the installation tube, and when the torsion force exerted on the sliding sleeve by the inner tube (1) exceeds a preset threshold value due to the fact that the bushing main body bears external force, the sliding sleeve rotates around the installation tube along with the inner tube (1).

2. The sliding bushing of claim 1, wherein: the installation pipe comprises two installation branch pipes (4), and the outer blocking parts are arranged on the installation branch pipes (4).

3. The sliding bushing of claim 1, wherein: the outer blocking portion comprises a first flanging (401) arranged at the end of the mounting branch pipe (4).

4. A sliding bushing according to claim 3, wherein: and a second flanging (402) is formed at the edge of the first flanging (401), and the second flanging (402) is bent towards the inner pipe (1).

5. The sliding bushing of claim 1, wherein: the sliding sleeve comprises at least two sliding sub-sleeves (6) which are sequentially arranged along the axial direction of the inner tube (1), and an inner blocking part which is arranged between the inner tube (1) and the outer blocking part is formed on the sliding sub-sleeve (6) at the end part.

6. The sliding bushing of claim 5, wherein: the sliding sleeve comprises two sliding sub-sleeves (6), and the inner blocking part is arranged on each sliding sub-sleeve (6).

7. The sliding bushing of claim 5, wherein: the inner blocking part comprises a third flanging (601) arranged at the end part of the sliding branch sleeve (6).

8. The sliding bushing of claim 1, wherein: the external connecting piece comprises a bolt pair for connecting the mounting branch pipes (4).

9. The sliding bushing according to any one of claims 1-8, wherein: a middle pipe (5) is embedded in the rubber piece (3).

10. A vehicle, includes knuckle and sub vehicle frame, its characterized in that: a sliding bush according to any one of claims 1 to 9 connected between the knuckle and the subframe.

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