CN209818613U

CN209818613U - Automobile shock absorption bushing

Info

Publication number: CN209818613U
Application number: CN201920570561.3U
Authority: CN
Inventors: 吴万荣
Original assignee: Zhejiang Fieve Automation Equipment Co Ltd
Current assignee: Zhejiang Fieve Automation Equipment Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2019-12-20
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses an automobile shock absorber bush relates to auto-parts technical field, and its technical scheme main points are: including outer tube, inner tube, the rubber portion of setting between outer tube and inner tube, be equipped with two dashpots on the one end terminal surface of rubber portion, the inner space of two dashpots is the arc that suits with the inner wall of outer tube, and two dashpots symmetries set up the both sides at the inner tube. When the impact force is transmitted to the rubber part from the inner pipe or the outer pipe, the rubber part can transmit the force to the side wall of the adjacent buffer slot, so that the side wall of the buffer slot is deformed to relieve the impact force.

Description

Automobile shock absorption bushing

Technical Field

The utility model relates to the technical field of auto-parts, in particular to automobile shock absorber bush.

Background

The automobile suspension is a part connected between wheels and an automobile body and mainly has two main functions, namely, the wheels are hung below the automobile body, and the automobile body is supported on the wheels to play a role in lifting and supporting. In order to obtain good steering stability and riding comfort of the vehicle, a large number of rubber members are used at the connection positions of the suspension system of the vehicle, such as the connection of the shock absorber to the vehicle body, the connection of the suspension link to the knuckle, the connection of the suspension link to the vehicle body, and the like. These rubber couplings have a significant impact on the shock absorption, noise reduction and suspension performance of the vehicle.

At present, chinese patent with publication number CN202579779U discloses a rubber bushing of an automobile shock absorber, which comprises an outer bushing tube, a vulcanized rubber layer and an inner bushing tube, wherein the inner edge of the outer bushing tube is tightly connected with the outer edge of the vulcanized rubber layer; the outer edge of the inner pipe of the bushing is tightly connected with the inner edge of the vulcanized rubber layer.

Foretell automobile shock absorber ware rubber bushing is through setting up vulcanized rubber layer between bush outer tube and bush inner tube, absorbs the impact that the car travel in-process produced, nevertheless because vulcanized rubber layer is too inseparable with the contact of bush outer tube and bush inner tube in the use, makes the space that the rubber atress lacks the deformation for rubber wearing and tearing shorten the life of bush.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an automobile shock absorber bush, it has the speed of reducing rubber portion wearing and tearing, improves bush life's advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an automobile shock absorption bush, includes outer tube, inner tube, the rubber portion of setting between outer tube and inner tube, be equipped with two dashpots on the one end terminal surface of rubber portion, the inner space of two dashpots is the arc that suits with the inner wall of outer tube, and two dashpots symmetries set up the both sides at the inner tube.

Through above-mentioned technical scheme, when the impact force transmitted the rubber portion from inner tube or outer tube on, the rubber portion can transmit the lateral wall of close dashpot with power, and the lateral wall that makes the dashpot appears deformation in order to alleviate the effect of impact force.

Preferably, the outer side wall of the inner pipe is symmetrically provided with two extending blocks, the two buffer grooves are respectively positioned at two sides of the two extending blocks, and the side wall of the extending block far away from the inner pipe is positioned in the buffer groove at the corresponding side.

Through above-mentioned technical scheme, because the setting of dashpot, can lead to the width of the rubber portion between inner tube and the dashpot to diminish, the too big condition of degree of deformation can appear when the atress is deformed in the less rubber portion of width takes place, lead to the impaired of rubber portion, and the lateral wall that the inner tube was kept away from to the extension piece constitutes the partly back of the dashpot lateral wall of corresponding side, replace the less position of rubber portion width by the extension piece, can keep being connected of inner tube and rubber portion, can reduce the impaired of rubber portion again.

Preferably, the outer side wall of the inner pipe is symmetrically provided with two clamping blocks, the central connecting line of the two clamping blocks is perpendicular to the central connecting line of the two extension blocks, and one side, far away from the inner pipe, of each clamping block is embedded in the rubber part.

Through above-mentioned technical scheme, the joint piece increases the area of contact with rubber portion, increases the friction between inner tube and the rubber portion, and when the inner tube was to the motion trend of dashpot one side removal, the support that the extension piece lacked rubber portion, the unable inside pipe that provides of extension piece supported, just can play the effect that prevents the inner tube and remove with joint piece contact and the rubber portion that is in this side direction this moment, makes the inner tube can maintain current position, and the motion that reduces acutely takes place.

Preferably, the extension block is provided with first lightening holes penetrating through two ends of the extension block, and the clamping block is provided with second lightening holes penetrating through two ends of the clamping block.

By adopting the technical scheme, the material consumption of the inner pipe is reduced, and the production cost is reduced; the mass of the inner pipe is reduced, so that the whole damping bushing is reduced in mass and convenient to use.

Preferably, the rubber part comprises a natural rubber layer and an artificial rubber layer, the natural rubber layer is fully contacted with the outer side wall of the inner pipe, and the artificial rubber layer is filled between the natural rubber layer and the inner side wall of the outer pipe.

Through above-mentioned technical scheme, the natural rubber layer is vulcanized by natural rubber and forms, has lower rigidity, and when the natural rubber layer received the inner tube extrusion, deformation appeared more easily can reduce the noise effectively, and artifical rubber layer is vulcanized by artifical rubber and forms, has better rigidity, can effectively play the effect that reduces impact and vibration.

Preferably, the artificial rubber layer extends to one side of the inner pipe along the radial direction of the inner pipe and forms a first extending part, and the first extending part covers the natural rubber layer and isolates the natural rubber layer from being communicated with the outside.

Through above-mentioned technical scheme, the ageing resistance on artifical rubber layer is better than natural rubber layer, keeps apart natural rubber layer and external contact by artifical rubber layer, can reduce natural rubber layer's ageing speed, makes natural rubber layer's low rigidity characteristic keep for a longer time, improves whole shock bushing's life.

Preferably, the artificial rubber layer extends toward the outer tube side in the radial direction of the inner tube and forms a second extension portion which covers the end surface of the outer tube.

Through above-mentioned technical scheme for area of contact greatly increased between artifical rubber layer and the outer tube, consequently the adhesion strength that produces between artifical rubber layer and the outer tube also correspondingly increases, when making artifical rubber layer receive great effort and take place deformation, the artifical rubber layer is difficult and takes place to tear separately between the outer tube.

Preferably, the artificial rubber layer is provided with a plurality of grooves in the position between the natural rubber layer and the outer pipe, and the grooves are uniformly distributed around the inner pipe.

Through above-mentioned technical scheme, increase the application space that the atress warp, the artifical rubber layer of the deeper position of the degree of depth of being convenient for is deformed, further prolongs shock attenuation bush's life.

To sum up, the utility model discloses the beneficial effect who contrasts in prior art does:

1. by arranging the buffer groove and the groove, a releasing space is provided for the stress deformation of the rubber part, and the service life of the damping bushing is prolonged;

2. the extension block and the clamping block are arranged on the inner pipe, so that the possibility of movement between the inner pipe and the rubber part is reduced, and the possibility of excessive deformation of the rubber part is reduced;

3. through setting up artifical rubber layer and natural rubber layer, reduce the noise that the shock attenuation bush produced in the use, and reduce the interference that natural rubber layer received external environment.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment;

fig. 2 is a sectional view of the embodiment.

Reference numerals: 1. an outer tube; 2. an inner tube; 21. an extension block; 211. a first lightening hole; 22. a clamping block; 221. a second lightening hole; 3. a rubber part; 31. an artificial rubber layer; 311. a first extension portion; 312. a second extension portion; 313. A buffer tank; 314. a groove; 32. a natural rubber layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides an automobile shock absorber bush, as shown in figure 1, includes outer tube 1, inner tube 2, sets up the rubber portion 3 between outer tube 1 and inner tube 2, is equipped with the apron on the one end tip of outer tube 1, is equipped with uncovered on the other end of outer tube 1, and rubber portion 3 department all is equipped with two dashpots 313 on the terminal surface of uncovered one side, and two dashpots 313 use inner tube 2 to set up as central symmetry.

Referring to fig. 1, the center of the inner tube 2 is provided with a shaft hole, the outer side wall of the inner tube 2 is symmetrically provided with two extending blocks 21 and two clamping blocks 22, the extending blocks 21 and the clamping blocks 22 are alternately arranged, and the central connecting line of the two clamping blocks 22 is perpendicular to the central connecting line of the two extending blocks 21. The cross section of extension piece 21 is square, and the cross section of joint piece 22 is triangle-shaped, and extension piece 21 all with inner tube 2 integrated into one piece with joint piece 22 for the whole shape of inner tube 2 is the hexagon, is equipped with the first lightening hole 211 that runs through extension piece 21 both ends on the extension piece 21, is equipped with the second lightening hole 221 that runs through joint piece 22 both ends on the joint piece 22. When the rubber part is installed, the extending blocks 21 on the inner pipe 2 face the two buffer grooves 313 of the rubber part 3 respectively, the side walls of the extending blocks 21 far away from the inner pipe 2 form the side walls of the buffer grooves 313 on the corresponding side, and the corners of the clamping blocks 22 far away from the inner pipe 2 are embedded in the rubber part 3.

Referring to fig. 1 and 2, the rubber part 3 includes a natural rubber layer 32 and an artificial rubber layer 31, the natural rubber layer 32 is vulcanized by natural rubber and has low rigidity, and the artificial rubber layer 31 is vulcanized by artificial rubber and has good weather resistance and shock absorption performance. The artificial rubber layer 31 is in full contact with the inner side wall of the outer tube 1, a plurality of grooves 314 are formed in the circumferential side wall, in contact with the inner side wall of the outer tube 1, of the artificial rubber layer 31, the grooves 314 are evenly distributed around the inner tube 2, and the length direction of the grooves 314 is the same as that of the inner tube 2. The ends of both ends of the artificial rubber layer 31 extend to the inner tube 2 side in the radial direction of the inner tube 2 and form a first extension 311, and both buffer grooves 313 are provided on the first extension 311 on the open side. The end portion of the artificial rubber layer 31 on the open side extends toward the outer tube 1 side in the radial direction of the inner tube 2 and forms a second extension 312, and the second extension 312 covers the end surface of the outer tube 1. The natural rubber layer 32 is between the two first extensions 311, and the natural rubber layer 32 is between the artificial rubber layer 31 body and the inner tube 2.

The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims.

Claims

1. The utility model provides an automobile shock absorber bush, includes outer tube (1), inner tube (2), sets up rubber portion (3) between outer tube (1) and inner tube (2), characterized by: all be equipped with two dashpot (313) on the terminal surface of rubber portion (3), the inner space of two dashpot (313) is the arc that suits with the inner wall of outer tube (1), and two dashpot (313) symmetry set up the both sides at inner tube (2).

2. The automobile shock absorbing bushing according to claim 1, wherein: the outer side wall of the inner pipe (2) is symmetrically provided with two extension blocks (21), the two buffer grooves (313) are respectively positioned at two sides of the two extension blocks (21), and the side wall, far away from the inner pipe (2), of each extension block (21) is positioned in the buffer groove (313) at the corresponding side.

3. The automobile shock absorbing bushing according to claim 2, wherein: still the symmetry is equipped with two joint pieces (22) on the lateral wall of inner tube (2), and the center line of two joint pieces (22) is perpendicular to the center line of two extension pieces (21), one side that inner tube (2) were kept away from in joint piece (22) inlays and establishes in rubber portion (3).

4. The automobile shock absorbing bushing according to claim 3, wherein: the extension block (21) is provided with first lightening holes (211) penetrating through two ends of the extension block (21), and the clamping block (22) is provided with second lightening holes (221) penetrating through two ends of the clamping block (22).

5. The automobile shock absorbing bushing according to claim 1, wherein: the rubber part (3) comprises a natural rubber layer (32) and an artificial rubber layer (31), the natural rubber layer (32) is fully contacted with the outer side wall of the inner pipe (2), and the artificial rubber layer (31) is filled between the natural rubber layer (32) and the inner side wall of the outer pipe (1).

6. The automobile shock absorbing bushing according to claim 5, wherein: the artificial rubber layer (31) extends to one side of the inner pipe (2) along the radial direction of the inner pipe (2) and forms a first extending part (311), and the first extending part (311) covers the natural rubber layer (32) and isolates the communication between the natural rubber layer (32) and the outside.

7. The automobile shock absorbing bushing according to claim 5, wherein: the artificial rubber layer (31) extends to the outer tube (1) side along the radial direction of the inner tube (2) and forms a second extension part (312), and the second extension part (312) covers the end surface of the outer tube (1).

8. The automobile shock absorbing bushing according to claim 5, wherein: the artificial rubber layer (31) is provided with a plurality of grooves (314) in the position between the natural rubber layer (32) and the outer pipe (1), and the grooves (314) are uniformly distributed around the inner pipe (2).