CN111379807B

CN111379807B - Suspension bush and automotive suspension

Info

Publication number: CN111379807B
Application number: CN202010197482.XA
Authority: CN
Inventors: 袁琼
Original assignee: Chongqing Industry Polytechnic College
Current assignee: Chongqing Industry Polytechnic College
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2021-04-06
Anticipated expiration: 2040-03-19
Also published as: CN111379807A

Abstract

The invention relates to the technical field of automobile parts and discloses a suspension bushing and an automobile suspension. The suspension bushing comprises a shell and a shock absorption layer which is arranged in the shell and is coaxial with the shell, an anti-falling sliding block is arranged on the outer wall of the shock absorption layer, first unidirectional teeth are arranged at the bottom of the anti-falling sliding block, a first slide way which is arranged corresponding to the anti-falling sliding block and distributed along the axial direction of the shell is arranged on the inner wall of the shell, a second slide way extends from the tail end of the first slide way, the second slide way is distributed along the circumferential direction of the shell, tooth grooves matched with the first unidirectional teeth are formed in the bottom of the second slide way, the first slide way is communicated with the second slide way, and the anti-falling sliding block can slide in the first slide way and; the tail end of the second slide way is closed so as to limit the anti-falling slide block to be separated from the second slide way along the radial direction of the shell. Through above-mentioned technical scheme, utilize the cooperation between anticreep slider and first slide, second slide and the tooth's socket, fix the buffer layer in circumference, radially and axial, avoid the buffer layer to deviate from.

Description

Suspension bush and automotive suspension

Technical Field

The invention relates to the technical field of automobile parts, in particular to a suspension bushing and an automobile suspension.

Background

The suspension positioning parameters of the automobile under each actual operation condition can be changed, which is not beneficial to differential operation and driving stability, and the riding comfort can be influenced.

A suspension bushing in the prior art includes a housing, a core tube located inside the housing, and a shock absorbing layer between the housing and the core tube. When the suspension bushing with the structure is installed on the bushing installation seat, the shock absorption layer is easy to be separated, namely, the anti-pressure separation force of the shell is insufficient.

Disclosure of Invention

The invention aims to solve the problem that a shock absorption layer of a suspension bushing in the prior art is easy to fall off, and provides the suspension bushing with high pressure-disengaging force in the axial direction, the radial direction and the circumferential direction.

In order to achieve the above object, a first aspect of the present invention provides a suspension bushing, where the suspension bushing includes a casing and a damping layer disposed in the casing and coaxial with the casing, an anti-drop slider is disposed on an outer wall of the damping layer, first unidirectional teeth are disposed at a bottom of the anti-drop slider, a first slideway disposed on an inner wall of the casing and corresponding to the anti-drop slider and distributed in an axial direction of the casing is disposed on the inner wall of the casing, a second slideway extends from a terminal of the first slideway, the second slideway is distributed in a circumferential direction of the casing, a tooth socket matched with the first unidirectional teeth is disposed at a bottom of the second slideway, the first slideway is communicated with the second slideway, and the anti-drop slider can slide in the first slideway and the second slideway.

Through above-mentioned technical scheme, utilize the cooperation between anticreep slider and first slide, second slide and the tooth's socket, fix the buffer layer in circumference, radially and axial, avoid the buffer layer to deviate from.

Further, the tail end of the second slide way is closed so as to limit the anti-falling slide block to be separated from the second slide way along the radial direction of the shell.

Further, the length of the first slideway is one half of the length of the shell, and the length of the second slideway is one quarter of the perimeter of the shell.

Furthermore, the number of the anti-falling sliding blocks is two, and the two anti-falling sliding blocks are rotationally symmetrical by taking the axis of the damping layer as a center; the first slide with the second slide all sets up to two and all uses the axis of casing is central rotational symmetry.

Further, the anti-falling sliding block is arranged in the middle of the damping layer.

Further, the tooth slot is formed by a plurality of second unidirectional tooth arrays which are identical to the first unidirectional tooth structures and are distributed oppositely.

Further, the shock-absorbing layer is made of rubber materials.

In another aspect, the present invention provides an automotive suspension including a suspension bushing as claimed above.

The automobile suspension provided by the invention is beneficial to differential control of an automobile and driving stability, and the riding comfort is improved.

Additional features and advantages of the invention will be set forth in the detailed description which follows.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a suspension bushing of the present invention;

FIG. 2 is a schematic structural view of one embodiment of the shock-absorbing shell of the present invention;

FIG. 3 is a schematic structural view showing an assembled relationship between the anti-slip slider and the first unidirectional teeth;

FIG. 4 is a schematic structural view of an embodiment of a first unidirectional tooth;

FIG. 5 is a schematic view of the construction of the first and second ramps;

FIG. 6 is a schematic structural view of an embodiment of a second unidirectional tooth;

FIG. 7 is a schematic structural view of another embodiment of the second runner;

fig. 8 is a schematic structural view of another embodiment of the anti-drop slider.

Description of the reference numerals

10 housing 11 first slide

12 second slideway 20 shock-absorbing layer

21 anti-drop slider 22 first unidirectional tooth

13 second one-way tooth 23 slide block

24 third unidirectional tooth

Detailed Description

The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.

In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.

A first aspect of the present invention provides a suspension bushing, as shown in fig. 1 to 6, which includes a housing 10 and a shock-absorbing layer 20 disposed within the housing 10 and coaxially disposed with the housing 10, an anti-falling sliding block 21 is arranged on the outer wall of the shock absorption layer 20, a first one-way tooth 22 is arranged at the bottom of the anti-falling sliding block 21, a first slide way 11 which is arranged corresponding to the anti-falling slide block 21 and is distributed along the axial direction of the shell 10 is arranged on the inner wall of the shell 10, a second slide way 12 extends from the tail end of the first slide way 11, the second slideway 12 is distributed along the circumferential direction of the shell 10, the bottom of the second slideway 12 is provided with a tooth slot 13 matched with the first unidirectional tooth 22, the first slideway 11 is communicated with the second slideway 12, and the anti-falling sliding block 21 can slide in the first slideway 11 and the second slideway 12.

Through above-mentioned technical scheme, utilize anticreep slider 21 with first slide 11 second slide 12 and cooperation between the tooth's socket is right buffer layer 20 is fixed at circumference, radial and axial ascending, avoids buffer layer 20 deviates from.

Generally, the inside of the case 10 is provided with a core tube. Based on the tension that the damping layer 20 is sandwiched between the core tube and the shell 10 and the damping layer itself has. Therefore, the shock-absorbing shell is not generally loosened in the radial direction. In order to reinforce the press-off force of the shock-absorbing layer in the radial direction, the end of the second slide way 12 may be closed (as shown in fig. 7) to limit the separation-preventing slide 21 from separating from the second slide way 12 in the radial direction of the housing 10.

Optionally, the length of the first slideway 11 is half of the length of the housing 10, and the length of the second slideway 12 is a quarter of the circumference of the housing 10. The anti-dropping slide block 21 is arranged in the middle of the shock absorption layer 20. Wherein, the shock absorbing layer 20 can be made of rubber material.

Preferably, two anti-dropping sliders 21 are provided, and the two anti-dropping sliders 21 are rotationally symmetrical around the axis of the shock absorption layer 20; the first slide way 11 and the second slide way 12 are both arranged into two and are both rotationally symmetrical by taking the axis of the shell 10 as a center.

In the above, the tooth slot is formed by arranging a plurality of second unidirectional teeth 13 which have the same structure as the first unidirectional teeth 22 and are distributed oppositely.

The working principle of the suspension bushing of the invention is as follows: during assembly, the two anti-falling sliders 21 on the shock absorption layer 20 are aligned with the two first slide ways 11 on the casing 10, and the anti-falling sliders 21 are slid to the tail ends of the first slide ways 11 along the first slide ways 11. Then, the shock absorbing layer 20 is rotated clockwise or counterclockwise, so that the anti-drop slider 21 slides into the second slideway 12. Because the bottom of the anti-falling sliding block 21 is provided with the first unidirectional teeth 22, a tooth groove matched with the first unidirectional teeth 22 is arranged in the second slideway 12. The slider is irreversible after it has been turned into said second slideway 12. This achieves a strong press-off force of the damping layer 20 in the axial and radial directions. Since the end of the second slide channel 13 is closed (as shown in fig. 7), when the anti-slip slider 21 is slid into the end of the second slide channel 13, the displacement of the anti-slip slider 21 in the radial direction is also restricted. This ensures that the damping layer 20 is fixed in the circumferential, radial and axial directions, preventing the damping layer 20 from coming off.

The invention also provides another specific implementation mode of the anti-slip sliding block, in general, the anti-slip sliding block 21 is connected with the first slideway 11 in a sliding manner in a dovetail groove manner, and the anti-slip block 21 is matched with the second slideway 12 through unidirectional teeth and tooth grooves. Specifically, as shown in fig. 8, sliders 23 are provided on both left and right sides of the retaining slider 21, a third one-way tooth 24 is provided on a bottom portion of the retaining slider 21, and the third one-way tooth 24 has the same structure as the first one-way tooth 22 and the second one-way tooth 13. Dovetail groove guide rails (not shown in the drawings of the specification) matched with the sliding blocks 23 are arranged on two sides of the first slide way 11, so that the anti-falling sliding block 21 can slide in the first slide way 11 and slide to the tail end of the first slide way 11, the sliding blocks 23 are separated from the dovetail groove guide rails, the shock absorption layer 20 rotates clockwise or anticlockwise, the third one-way teeth 24 at the bottom of the anti-falling sliding block 21 are matched with the tooth grooves, and the anti-falling sliding block 21 can enter the tail end of the anti-falling sliding block 21 along the second slide way 12.

In another aspect, the present invention provides an automotive suspension comprising a suspension bushing as described above.

The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.

In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.

Claims

1. The suspension bushing is characterized by comprising a shell (10) and a shock absorption layer (20) which is arranged in the shell (10) and is coaxial with the shell (10), wherein an anti-falling sliding block (21) is arranged on the outer wall of the shock absorption layer (20), first one-way teeth (22) are arranged at the bottom of the anti-falling sliding block (21), first sliding ways (11) which are correspondingly arranged on the inner wall of the shell (10) and are axially distributed along the shell (10) are arranged on the inner wall of the shell (10), second sliding ways (12) extend out from the tail ends of the first sliding ways (11), the second sliding ways (12) are distributed along the circumferential direction of the shell (10), tooth grooves (13) matched with the first one-way teeth (22) are arranged at the bottom of the second sliding ways (12), and the first sliding ways (11) are communicated with the second sliding ways (12), the anti-drop slider (21) can slide in the first slideway (11) and the second slideway (12).

2. The suspension liner bushing according to claim 1, wherein the second slideway (12) is closed at its distal end to restrict the disengagement preventing slider (21) from disengaging from the second slideway (12) in the radial direction of the housing (10).

3. The suspension liner according to claim 2, wherein the length of the first slideway (11) is one half of the length of the housing (10) and the length of the second slideway (12) is one quarter of the circumference of the housing (10).

4. The suspension bushing according to claim 1, wherein the anti-drop slider (21) is provided in two, and the two anti-drop sliders (21) are rotationally symmetrical about the axis of the damper layer (20); the first slide way (11) and the second slide way (12) are both arranged into two and are rotationally symmetrical by taking the axis of the shell (10) as a center.

5. The suspension bushing according to claim 4, wherein the anti-drop slider (21) is disposed in the middle of the shock-absorbing layer (20).

6. The suspension bushing according to claim 1, wherein the tooth slot is formed by a plurality of second unidirectional teeth (13) arranged in the same configuration and in an opposite distribution to the first unidirectional teeth (22).

7. Suspension bushing according to claim 1, characterized in that the shock absorbing layer (20) is made of a rubber material.

8. Automotive suspension characterized in that it comprises a suspension bushing according to any one of claims 1 to 7.