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Bushing structure of cantilever frame shock absorber

A shock absorber, suspension beam frame technology, applied in the direction of springs/shock absorbers, springs made of plastic materials, mechanical equipment, etc., can solve the problem that the bushing structure cannot bear large radial loads, and reduce development costs. and cycle, improve control flexibility, improve the effect of NVH

Pending Publication Date: 2018-06-12
SAIC-GM-WULING AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the defects or deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a technical solution that can solve the problem that the bushing structure in the prior art cannot bear large radial loads

Method used

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  • Bushing structure of cantilever frame shock absorber
  • Bushing structure of cantilever frame shock absorber
  • Bushing structure of cantilever frame shock absorber

Examples

Experimental program
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Embodiment 1

[0036] Embodiment 1, the present invention provides a suspension beam shock absorber bushing structure, which is mainly used in the suspension system on the automobile shock absorber assembly. The existing rear shock absorber lower support bushing is mainly used for transmitting force, Vibration reduction, noise reduction, motion determination, etc. The common rear shock absorber lower support bush structure mainly adopts a symmetrical structure, and there is no plug-in stopper in the axial direction. After the bolt is tightened, when the whole vehicle is running on the road, with the continuous movement of the suspension, There will be iron-iron friction at the end face of the inner steel sleeve of the vibrator bushing, resulting in abnormal noise, and the end face of the inner steel sleeve 111 of the bushing is small, which cannot withstand a large bolt torque, and is prone to torque attenuation, which is not conducive to multiple The platform vehicle type is shared, and the...

Embodiment 2

[0039] Embodiment 2, based on the above embodiments, the present invention provides a bushing structure for suspension beam shock absorbers. The difference between this embodiment and the above embodiments is that, as Figure 5 As shown, in this embodiment, in addition to adding a limit block 112 to the inner steel sleeve, a first groove 101 is added to the rubber sleeve 110, and the position of the first groove 101 is located in the On the rubber sleeve 110 between the limiting block 112 and the outer steel sleeve 19 .

[0040] Specifically, the opening of the first groove 101 is upward, and its bottom is arc-shaped, and the vulcanization part of the limiting block 112 is rounded.

[0041] Such as Figure 6 , Figure 8The dimensional drawing of the bushing structure is marked as shown, in which, the total length L1 of the bushing structure is: L1=L2+L3+(L4)+L5+L6, where L2 is the length of the mating section between the inner steel sleeve 111 and the surrounding parts (the...

Embodiment 3

[0045] Embodiment 3, based on the above embodiments, the present invention provides a bushing structure for suspension beam shock absorbers. The difference between this embodiment and the above embodiments is that, as Figure 6 As shown, the outer diameter of the outer steel sleeve 19 greater than the outer diameter of the limiting block 112 , and the outer diameter of the tail end of the inner steel sleeve 111 greater than the outer diameter of the insertion portion 113 . Such design, considering that when the bushing structure is installed into the sleeve, the diameter of the sleeve is larger than the outer diameter of the outer steel sleeve , so as to ensure that the bushing structure can be installed and disassembled smoothly. Wherein, the outer diameter φA of the limiting block 112 needs to be smaller than φE, and the length L4 between the limiting block 112 and the inner steel sleeve 111 is smaller than the length L2 of the insertion part 113 and the length L4 o...

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Abstract

The invention relates to a bushing structure of a cantilever frame shock absorber. The bushing structure comprises an inner steel sleeve, a rubber sleeve and an outer steel sleeve; the inner steel sleeve is in interference fit with the rubber sleeve; the rubber sleeve is in interference fit with the outer steel sleeve; the head end of the inner steel sleeve is provided with an inserting part and alimiting block, wherein the inserting part is inserted into a mating part hole position; and the limiting block is connected with the inserting part and is fixed together with the rubber sleeve in anintegrated sulfurization manner. According to the bushing structure provided by the invention, the end part of the inner steel sleeve is additionally provided with one limiting block so as to increase the radial load bearing capacity of a bushing so that the bushing can satisfy a bolt torque range of different loaded car types; and the bushing structure is applicable to rear suspension frames ofvarious platform car types, lowers the development cost and shortens the development period.

Description

technical field [0001] The invention relates to automobile vibration reduction technology, in particular to a suspension beam frame shock absorber bushing structure. Background technique [0002] The automobile shock absorber assembly is an important part of the suspension system, which can effectively attenuate the vibration of the sprung and unsprung masses, and improve the ride comfort and handling stability of the vehicle. As a part of the shock absorber assembly, the lower support bush of the shock absorber mainly plays the roles of force transmission, vibration reduction, noise reduction, and motion determination. The shock absorber can be installed in series or in parallel with the spring to support the vehicle body and buffer the impact of the road surface. The design of the valve system inside the shock absorber is very important. The oil flows through the valve system hole to produce a certain damping. The design and debugging can get the shock absorber that meets...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/38
CPCF16F1/38
Inventor 潘俊斌钟彬李小珊伍初东陈金映林建华
Owner SAIC-GM-WULING AUTOMOBILE CO LTD
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