CN211567587U

CN211567587U - Rear shock absorber upper bracket assembly

Info

Publication number: CN211567587U
Application number: CN201922420388.1U
Authority: CN
Inventors: 李德淯; 马良灿; 林振华
Original assignee: SAIC GM Wuling Automobile Co Ltd
Current assignee: SAIC GM Wuling Automobile Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-09-25
Anticipated expiration: 2029-12-30

Abstract

The utility model relates to a back bumper shock absorber upper bracket assembly, skeleton in the middle of skeleton, support elastomer and support under skeleton, support upper bracket, skeleton periphery are equipped with perpendicular turn-ups downwards, under the support skeleton fixed mounting in the perpendicular turn-ups, under the support skeleton central authorities lower surface is equipped with down the boss, but lower boss lower surface and buffer block formula relieving offset, and lower boss periphery cover is established coil spring, forms a cavity on lower boss and the support between the skeleton, and in the cavity was arranged in to support elastomer interference formula, the middle of support elastomer transversely vulcanizes integrated into one piece and is equipped with skeleton in the middle of the support, and the skeleton on the support is worn to locate by the piston rod of bumper shock absorber, skeleton and support middle skeleton central authorities under the support, skeleton on the support under the support skeleton in the middle of the support is the rigid member. The utility model discloses simple structure, the lightweight possesses fine mechanical properties, and the travelling comfort is good for whole car, and spatial arrangement is good, and spare part is few, realizes the platformization.

Description

Rear shock absorber upper bracket assembly

Technical Field

The utility model relates to an automobile parts installation, especially a rear shock absorber upper bracket assembly.

Background

The rear shock absorber upper bracket assembly has the basic functions of transmitting the stress from the chassis to the vehicle body and simultaneously playing the roles of vibration isolation and noise reduction. Generally, the conventional framework structure 21 is formed by stamping, welding and forming a metal plate or forming cast aluminum, and then rubber and a support framework are vulcanized and formed, and the common structure is shown in fig. 1; another conventional framework 22 is a stamped sheet metal framework plus an inner and outer framework of vulcanized rubber, such as a cast aluminum framework plus vulcanized rubber, as shown in fig. 2. The transmission channels of the damping force, the spring force and the force of the buffer block of the piston rod are divided upwards, and the single-channel force transmission upper support assembly, the double-channel force transmission upper support assembly and the multi-channel force transmission upper support assembly can be classified. The problems are as follows:

1) the damping force, the spring force and the force transmission channel of the buffer block force of the piston rod are transmitted to the vehicle body through a rubber single channel or double channels, the framework structure bears large load stress, and meanwhile, a high-hardness rubber body is required to meet the rubber body durability, so that the comfort of the whole vehicle is poor;

2) the traditional upper support assembly of the rear shock absorber cannot be independently assembled with a rear spiral spring, and when the spiral spring is integrated on the shock absorber, an additional upper spring seat is required to be added, so that the part cost and the additional part cost are increased, the aims of light weight and low cost are not achieved, and the requirement on the part control precision is increased;

3) when the rear buffer block assembly is integrated in the rear shock absorber assembly to transfer force, the lower cup seat of the buffer block is added to the upper support assembly structure of the rear shock absorber, the stamping process or the aluminum casting process is complex, and the part cost is increased;

4) most three-channel force transmission front/rear shock absorber upper support assembly and vehicle body connection points adopt three riveting bolts or three welding nuts, a larger assembly space is needed, and the cost of the whole vehicle is higher due to the large number of fasteners.

Disclosure of Invention

The utility model relates to a solve not enough among the prior art and accomplish, the utility model aims at providing a simple structure, the lightweight possesses fine mechanical properties, and the travelling comfort is taken to whole car, and spatial arrangement is good, and spare part is few, realizes a back bumper shock absorber upper bracket assembly of platformization.

The utility model relates to a rear shock absorber upper support assembly, which comprises a support upper framework, a support lower framework, a support elastomer and a support middle framework, wherein the periphery of the support upper framework is downwards provided with a vertical flanging, the support lower framework is fixedly arranged at the lower surface of the support upper framework, the left end and the right end of the support lower framework are fixedly connected with the inner side of the vertical flanging, the support upper framework is detachably and fixedly connected with an automobile body, the lower surface of the support lower framework is provided with a lower boss, the lower surface of the lower boss is in releasable counterbalance with a buffer block, the periphery of the lower boss is sleeved with a spiral spring, the upper end of the spiral spring is in releasable counterbalance with the support lower framework, a cavity is formed between the lower boss and the support upper framework, the support elastomer is arranged in the cavity in an interference manner, the middle of the support elastomer is transversely vulcanized integrally with the support middle framework, the piston rod of the shock absorber penetrates through the center of the upper support framework, the middle support framework and the lower support framework, and the upper support framework, the lower support framework and the middle support framework are rigid members.

The utility model relates to a rear shock absorber upper bracket assembly technical scheme can also be:

the middle of the upper framework of the support is provided with an upper boss, and the piston rod penetrates through the center of the upper boss and is detachably and fixedly connected with the automobile body.

And semicircular convex ribs are respectively arranged at the positions, close to the upper bosses, of the front side and the rear side of the upper surface of the upper framework of the support, and the semicircular convex ribs are fixed with the metal plates of the automobile body in an embedded manner.

The inner circumference of the upper boss is provided with an upper flanging extending upwards.

And the sides of the upper end and the lower end of the support elastomer, which are close to the outer edge, are all provided with circumferential exhaust grooves in a surrounding manner.

The upper end face of the support elastomer is uniformly provided with four first bosses, and the upper surfaces of the first bosses are in contact type contact with the lower surface of the support upper framework to abut against the upper surface of the support upper framework.

The upper hemp points are arranged between the first bosses at intervals and are abutted with the lower surface of the upper framework of the support in a contact manner.

The lower terminal surface of support elastomer evenly is equipped with four second bosss, the lower surface of second boss with the upper surface contact of support lower frame offsets.

And lower pockmarks are arranged between the second bosses at intervals and are abutted with the upper surface of the lower framework of the support in a contact manner.

The automobile frame support is characterized in that mounting holes are formed in corresponding positions of the left side and the right side of the upper framework of the support and corresponding positions of the right side and the left side of the lower framework of the support, and the upper framework of the support and the lower framework of the support are detachably and fixedly connected with an automobile body through the mounting holes.

The utility model relates to a rear shock absorber upper support assembly, which comprises a support upper framework, a support lower framework, a support elastomer and a support middle framework, wherein the periphery of the support upper framework is downwards provided with a vertical flanging, the support lower framework is fixedly arranged at the lower surface of the support upper framework, the left end and the right end of the support lower framework are fixedly connected with the inner side of the vertical flanging, the support upper framework is detachably and fixedly connected with an automobile body, the lower surface of the support lower framework is provided with a lower boss, the lower surface of the lower boss is in releasable counterbalance with a buffer block, the periphery of the lower boss is sleeved with a spiral spring, the upper end of the spiral spring is in releasable counterbalance with the support lower framework, a cavity is formed between the lower boss and the support upper framework, the support elastomer is arranged in the cavity in an interference manner, the middle of the support elastomer is transversely vulcanized integrally with the support middle framework, the piston rod of the shock absorber penetrates through the center of the upper support framework, the middle support framework and the lower support framework, and the upper support framework, the lower support framework and the middle support framework are rigid members. Thus, the spiral spring is sleeved on the periphery of the lower boss, the spiral spring is in releasable abutting against the lower support framework, the lower boss plays a role of a spring support, the lower boss limits the spiral spring to move left and right, the spring force transmitted to the vehicle body through the lower support framework and the upper support framework avoids the shock absorber from being acted by lateral force, the service life and the reliability of the shock absorber are improved, parts are reduced, the cost is saved, the light weight is realized, the lower surface of the lower boss is in releasable abutting against the buffer block, a larger contact surface is provided for the buffer block, the service life of the buffer block is prolonged, the stress condition of the lower support framework is improved, the parts are reduced, the light weight is realized while the cost is saved, and the buffer block force transmitted to the vehicle body through the lower support framework boss, the support elastomer and the middle part of the upper support framework plays a role of buffering, the damping force of the piston rod, the back spring force and the buffer block force transmitted to the automobile body through the middle framework of the support, the support elastomer and the upper framework of the support form three independent force transmission channels, the three independent force transmission channels can disperse the bearing force of the framework structure, good mechanical performance is improved, and therefore the operation stability and riding comfort of the automobile are further improved. The support upper frame edge increases perpendicular turn-ups and has increased the perpendicular rigidity that the frame on the stress point effectively promoted the support, under the support about the skeleton both ends with perpendicular turn-ups inboard fixed connection has increased the horizontal stress point of skeleton under the support, has improved the horizontal rigidity of skeleton under the support, the support elastomer with skeleton vulcanization is integrative in the middle of the support, has improved the rigidity of support elastomer to in the cavity was arranged in to the interference formula, effectively prevented that the support elastomer from taking place to turn round the pendulum, improved the rigidity of support elastomer, prevented the abnormal sound that the support elastomer produced because of turning round the pendulum, the support upper frame the support under the skeleton the support the skeleton is rigid member in the middle of the support has improved the bulk rigidity of back bumper shock absorber upper mount assembly. The utility model discloses a rear shock absorber upper bracket assembly, the advantage that has for prior art does, simple structure, the lightweight possesses fine mechanical properties, and the travelling comfort is good for whole car, and spatial arrangement is good, and spare part is few, realizes the platformization.

Drawings

FIG. 1 is a schematic view of a rear shock absorber upper bracket in the prior art

FIG. 2 is a schematic view of another prior art upper bracket of a rear shock absorber

FIG. 3 is the utility model discloses a back bumper shock absorber upper bracket assembly structure plan view

Figure 4 is the utility model discloses a rear shock absorber upper bracket assembly side view

Figure 5 is the utility model discloses an inside sketch map of rear shock absorber upper bracket assembly

Figure 6 is the utility model discloses a three channel force transmission schematic diagrams of back bumper shock absorber upper bracket assembly

Figure 7 is the utility model discloses a rear shock absorber upper bracket assembly cross-sectional view

Figure 8 is the utility model discloses a support elastomer top view of rear shock absorber upper bracket assembly

FIG. 9 is a schematic view of the installation of the rear shock absorber upper bracket assembly of the present invention

Description of the figures

1. A support upper framework; 2. a lower framework of the support; 3. a support elastomer; 4. a support middle framework; 5. a lower boss; 6. mounting holes; 7. an upper boss; 8. semicircular convex ribs; 9. upward flanging; 10. a first boss; 11. a second boss; 12. a circumferential exhaust groove; 13. adding pockmarks; 14. removing pockmarks; 15. Vertically flanging; 16. an automotive body; 17. a piston rod; 18. a connecting bolt; 19. a buffer block; 20. a coil spring; f1, piston rod damping force; f2, buffer block force; f3, rear spring force 21, existing skeleton structure; 22. another existing skeleton structure

Detailed Description

A rear shock absorber upper bracket assembly according to the present invention will be described in further detail with reference to fig. 3 and 9.

The utility model relates to a rear shock absorber upper support assembly, please refer to fig. 3 and fig. 9, which comprises a support upper framework 1, a support lower framework 2, a support elastomer 3 and a support middle framework 4, wherein the periphery of the support upper framework 1 is downwards provided with a vertical flanging 15, the support lower framework 2 is fixedly arranged at the lower surface of the support upper framework 1, the left and right ends of the support lower framework 2 are fixedly connected with the inner side of the vertical flanging 15, the support upper framework 1 is detachably and fixedly connected with an automobile body 16, the central lower surface of the support lower framework 2 is provided with a lower boss 5, the lower surface of the lower boss 5 is detachably abutted with a buffer block 19, the periphery of the lower boss 5 is sleeved with a spiral spring 20, the upper end of the spiral spring 20 is detachably abutted with the support lower framework 2, a cavity is formed between the lower surface of the lower boss 5 and the support

upper framework

1, 3 interference formulas of support elastomer are arranged in the cavity, the middle of support elastomer 3 transversely vulcanizes integrated into one piece and has skeleton 4 in the middle of the support, and skeleton 1 on the support is worn to locate by piston rod 17 of bumper shock absorber, and the central authorities of skeleton 4 in the middle of skeleton 2 and the support under the support, skeleton 1 on the support skeleton 2 under the support skeleton 4 is the rigid member in the middle of the support. Thus, the spiral spring 20 is sleeved on the periphery of the lower boss 5, the spiral spring 20 is in releasable abutment with the support lower framework 2, the lower boss 5 plays a role of a spring support, the lower boss 5 limits the left and right movement of the spiral spring 20, the spring force transmitted to the vehicle body through the support lower framework 2 and the support upper framework 1 is avoided being acted by the lateral force, the service life and the reliability of the shock absorber are prolonged, parts are reduced, the weight is reduced while the cost is saved, the lower surface of the lower boss 5 is in releasable abutment with the buffer block 19, a larger contact surface is provided for the buffer block 19, the service life of the buffer block 19 is prolonged, the stress condition of the support lower framework 2 is improved, the parts are reduced, the weight is reduced while the cost is saved, and the buffer block force F2 transmitted to the vehicle body through the lower boss 5 of the support lower framework, the support elastic body 3 and the middle part of the support upper framework 1, the buffer function is played, the damping force of the piston rod, the back spring force and the back buffer block force F2 which are transmitted to the automobile body through the middle frame 4 of the support, the support elastic body 3 and the upper frame 1 of the support form three independent force transmission channels, the bearing capacity of the frame structure can be dispersed through the three independent force transmission channels, and the three independent force transmission channels have good mechanical performance, so that the operation stability and the riding comfort of the automobile are further improved. The support 1 edge of skeleton on increase perpendicular turn-ups 15 has increased the perpendicular rigidity that the stress point effectively promoted skeleton 1 on the support, under the support 2 about both ends with perpendicular turn-ups 15 inboard fixed connection has increased the horizontal stress point of skeleton 2 under the support, has improved the horizontal rigidity of skeleton under the support, support elastomer 3 with skeleton 4 vulcanizes integratively in the middle of the support, has improved the rigidity of support elastomer to in the cavity is arranged in to the interference formula, effectively prevent that the support elastomer from taking place to turn round the pendulum, has improved the rigidity of support elastomer, prevents the abnormal sound that the support elastomer produced because of turning round the pendulum, on the support skeleton 1 under the support skeleton 2 skeleton 4 is the rigid member in the middle of the support and has improved the bulk rigidity of back bumper shock absorber upper bracket assembly. Further preferred is: skeleton 1 is the fillet rhombus on the support, and is now simple to current design structure, satisfies the assembling nature.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: the middle of the support upper framework 1 is provided with an upper boss 7, and the piston rod 17 penetrates through the center of the upper boss 7 to be detachably and fixedly connected with an automobile body. Like this, go up boss 7 and play the effect of support, effectively promoted the vertical rigidity of skeleton under the support, piston rod 17 wears to locate boss 7 central authorities and can dismantle fixed connection with auto body 16, has injectd the moving direction of skeleton on the support, makes the shock absorber avoid receiving the effect of lateral force, increases the life-span and the reliability of shock absorber to further promote whole car and take the travelling comfort.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: semicircular convex ribs 8 are respectively arranged between the front edge and the rear edge of the upper surface of the upper framework 1 of the support and the upper boss 7, and the semicircular convex ribs 8 are fixed with a 16-metal plate of an automobile body in an embedded mode. Like this, 1 upper surface of skeleton increases two semicircular protruding muscle 8 on the support, and the semi-circular protruding muscle 8 embedding automobile body sheet metal connected after the installation has played the effect with the automobile body tie point, makes skeleton 1 closely laminate with the automobile body on the support, has promoted and has connected reliable and stable nature, reduces the risk that the noise produced, promotes whole car NVH performance.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: the inner circumference of the upper boss 7 is provided with an upper flange 9 extending upwards. Therefore, the upper flanging 9 on the inner side of the upper boss 7 can improve the material stacking and thinning problems of the plate rib punch forming, and the appearance forming effect of the product is improved.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: the upper end and the lower end of the support elastomer 3 close to the outer edge are provided with a circumferential exhaust groove 12. Thus, when the support elastic body 3 bears the upward extrusion force of the buffer block 19, the air in the support elastic body 3 is extruded to generate squeaking noise, and the air in the support elastic body 3 can be discharged by arranging the circumferential exhaust groove 12, so that the squeaking noise of the compressed air is effectively reduced.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: the upper end face of the support elastic body 3 is uniformly provided with four first bosses 10, and the upper surfaces of the first bosses 10 are in contact type contact with the lower surface of the support upper framework 1. Like this, set up first boss 10 and can effectively reduce support elastomer 3 and support upper frame 1 bear the extrusion abnormal sound of colloid and metal when deforming. The further preferable scheme is as follows: the specification of the first boss and the rubber formula of the support elastomer 3 can be adjusted, the attenuation amplitude of parts under impact can be adjusted by adjusting the rubber formula, and the comfort of the whole vehicle is improved, so that the NVH performance of the whole vehicle is improved.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: the four first bosses 10 are provided with upper hemp points 13 at intervals, and the upper hemp points 13 are in contact type contact with the lower surface of the support upper framework 1. Like this, through increasing the frictional force that the contact surface of the 3 upper surfaces of support elastomer and the support upper framework 1 lower surface increases of pockmark 13, effectively reduce support elastomer 3 and support upper framework 1's the extrusion abnormal sound of colloid and metal when bearing extrusion deformation, improve whole car travelling comfort to promote the NVH performance of whole car.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: the lower end face of the support elastic body 3 is uniformly provided with four second bosses 11, and the lower surfaces of the second bosses 11 are in contact with the upper surface of the support lower framework 2 to abut against each other. Therefore, the four bosses 11 are uniformly arranged on the lower end surface of the support elastic body 3, so that the extrusion abnormal sound of colloid and metal when the support elastic body 3 and the support lower support 2 bear extrusion deformation can be effectively reduced. The further preferable scheme is as follows: by adjusting the specification of the boss 11 and the rubber formula of the support elastomer, the attenuation amplitude of the part under impact can be adjusted, the comfort of the whole vehicle is improved, and the NVH performance of the whole vehicle is improved.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: lower pockmarks 14 are arranged among the four second bosses 11 at intervals, and the lower pockmarks 14 are in contact and abut against the upper surface of the lower support framework 2. Like this, through increasing down the numb point 14 and increasing the frictional force of the contact surface of 3 lower surfaces of support elastomer and support lower carriage 2, effectively reduce the extrusion abnormal sound of colloid and metal when bearing extrusion deformation of support elastomer 3 and support lower carriage 2, improve whole car travelling comfort to promote the NVH performance of whole car.

The utility model relates to a rear shock absorber upper bracket assembly please refer to fig. 3 and fig. 9, specifically can be on the basis of preceding technical scheme: the support upper frame 1 with the support is 2 corresponding positions of the left and right sides of the lower frame and is equipped with a mounting hole 6, the support upper frame 1 with the support is 2 through the mounting hole 6 with the automobile body 16 can dismantle fixed connection. Like this, mounting hole 6 provides the mounting point for the connection of rear shock absorber upper bracket, and connecting bolt 18 passes the mounting hole will skeleton 1 on the support with skeleton 2 and auto body 16 fastening under the support have promoted and have connected reliable and stable nature, reduce the risk that the noise produced to promote the NVH performance of whole car.

The above description is only for the description of several embodiments of the present invention, but the scope of the present invention should not be considered as falling within the scope of the present invention, in which all the equivalent changes or modifications or the equal-scale enlargement or reduction etc. according to the design spirit of the present invention are made.

Claims

1. A rear shock absorber upper support assembly is characterized by comprising a support upper framework, a support lower framework, a support elastic body and a support middle framework, wherein a vertical flanging is downwards arranged on the periphery of the support upper framework, the support lower framework is fixedly arranged at the lower surface of the support upper framework, the left end and the right end of the support lower framework are fixedly connected with the inner side of the vertical flanging, the support upper framework is detachably and fixedly connected with an automobile body, a lower boss is arranged on the lower surface of the center of the support lower framework, the lower surface of the lower boss is in releasable abutting with a buffer block, a spiral spring is sleeved on the periphery of the lower boss, the upper end of the spiral spring is in releasable abutting with the support lower framework, a cavity is formed between the lower boss and the support upper framework, the support elastic body is arranged in the cavity in an interference manner, and the middle of the support elastic body is transversely vulcanized integrally with the support middle framework, the piston rod of the shock absorber penetrates through the center of the upper support framework, the middle support framework and the lower support framework, and the upper support framework, the lower support framework and the middle support framework are rigid members.

2. The upper support assembly of the rear shock absorber as claimed in claim 1, wherein an upper boss is provided in the middle of the upper frame of the support, and the piston rod is inserted into the center of the upper boss and is detachably and fixedly connected with the automobile body.

3. The upper support assembly of the rear shock absorber as claimed in claim 2, wherein semicircular ribs are respectively arranged on the front and rear sides of the upper surface of the upper framework of the support near the upper boss, and the semicircular ribs are fixed with the metal plate of the automobile body in an embedded manner.

4. The upper bracket assembly for the rear shock absorber as claimed in claim 2, wherein the upper boss is provided at an inner circumference thereof with an upwardly extending flange.

5. The upper bracket assembly of the rear shock absorber as claimed in any one of claims 1 to 4, wherein the upper and lower ends of the bracket elastic body are provided with circumferential vent grooves around the outer edge.

6. The rear shock absorber upper bracket assembly as claimed in any one of claims 1 to 4, wherein four first bosses are uniformly arranged on the upper end surface of the bracket elastic body, and the upper surfaces of the first bosses are in contact abutment with the lower surface of the bracket upper framework.

7. The upper bracket assembly of the rear shock absorber as claimed in claim 6, wherein a plurality of upper dimples are spaced between the first bosses, and the upper dimples contact the lower surface of the upper frame of the bracket.

8. The upper support assembly of the rear shock absorber as claimed in any one of claims 1 to 4, wherein four second bosses are uniformly arranged on the lower end surface of the support elastic body, and the lower surfaces of the second bosses are in contact abutment with the upper surface of the support lower framework.

9. The upper bracket assembly of the rear shock absorber as claimed in claim 8, wherein lower pockmarks are spaced between the second bosses, and the lower pockmarks are in contact abutment with the upper surface of the lower frame of the bracket.

10. The rear shock absorber upper bracket assembly as claimed in any one of claims 1 to 4, wherein mounting holes are formed in corresponding positions on the left side and the right side of the support upper framework and the support lower framework, and the support upper framework and the support lower framework are detachably and fixedly connected with an automobile body through the mounting holes.