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Method for improving tear resistance and torsion performance of plate spring bushing and plate spring bushing

A technology of leaf spring bushing and torsion performance, which is applied in the direction of spring, elastic suspension, transportation and packaging, etc. It can solve the problems of axial movement and prolapse, so as to improve the service life, reduce axial movement, Enhance the effect of friction

Active Publication Date: 2021-12-28
BOGE RUBBER&PLASTICS ZHUZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to propose a new tear-resistant leaf spring bushing for the problem that the existing leaf spring bush has a large torsion angle that causes the rubber body to tear and cause connection failure, which is prone to axial movement and prolapse. The cracking method and the leaf spring bushing; the tear-resistant method of the leaf spring bushing and the leaf spring bushing can effectively solve the problem of connection failure caused by the tearing of the rubber body at a large torsion angle, and can effectively prevent shaft directional movement and disengagement, thereby increasing the service life of the leaf spring bushing

Method used

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  • Method for improving tear resistance and torsion performance of plate spring bushing and plate spring bushing
  • Method for improving tear resistance and torsion performance of plate spring bushing and plate spring bushing
  • Method for improving tear resistance and torsion performance of plate spring bushing and plate spring bushing

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Experimental program
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Effect test

Embodiment 1

[0048] by attaching Figure 1-9 It can be seen that the present invention relates to a leaf spring bushing, comprising a T-shaped retaining ring 1, an inner sleeve 2 and a vulcanized body 3, the T-shaped retaining ring 1 is a ring structure with a T-shaped cross section; the inner sleeve 2 is Surface-hardened tubular structure; vulcanized body 3 includes split outer tile cover 5, self-lubricating sleeve 6 and rubber body 7, rubber body 7 is a multi-layer rubber structure, rubber body 7 and self-lubricating sleeve 6 shrink to form a cavity 4. The inner casing 2 is press-fitted into the inner hole of the vulcanized body 3 with an interference fit; the T-shaped retaining ring 1 is interference-fitted at both ends of the inner casing 2 .

[0049] In this embodiment, the two split outer tile covers 5 are fitted on the outermost layer of the leaf spring bushing, and the two split outer tile covers 5 are fitted with dislocated "Z" shaped slits 12. There is a gap between the tile cov...

Embodiment 2

[0053] The principle of embodiment two is the same as that of embodiment one, but the combination structure is slightly different. Figure 7 It can be seen that the present invention relates to a leaf spring bushing, which includes a skeleton and a vulcanized body. The skeleton is assembled from two retaining rings and an inner sleeve; the vulcanized body is press-fitted on the inner sleeve with an interference fit. Located between two stop rings; the vulcanized body includes a self-lubricating sleeve, a split outer tile cover, a spacer and a rubber elastic body; the vulcanized body is a cavity structure with both ends retracted, and the vulcanized body is inserted into the vulcanized body The cavity forms a fit.

[0054] Further, the retaining ring is a T-shaped structure, which is interference-fitted on the inner casing and inserted into the cavity of the vulcanized body, and at the same time realizes the axial movement and radial deformation limit of the vulcanized body, in...

Embodiment 3

[0060] The principle of the third embodiment is the same as that of the first embodiment, but the combined structure is slightly different, and the attached Figure 8 It can be seen that the present invention relates to a leaf spring bushing, which includes a skeleton and a vulcanized body. The skeleton is assembled from two retaining rings and an inner sleeve; the vulcanized body is press-fitted on the inner sleeve with an interference fit. Located between two stop rings; the vulcanized body includes a self-lubricating sleeve, a split outer tile cover, a spacer and a rubber elastic body; the vulcanized body is a cavity structure with both ends retracted, and the vulcanized body is inserted into the vulcanized body The cavity forms a fit.

[0061] It’s just that the split outer tile cover is a slit matching structure. When the two split trapezoidal slit outer tile covers are combined to form a “Z”-shaped interface gap on the two sides, and the middle section is oblique Arrang...

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Abstract

The invention relates to a method for improving the tear resistance and the torsion performance of a plate spring bushing and the plate spring bushing. The plate spring bushing integrally vulcanized by rubber and metal is adopted, the inner surface of a rubber elastomer of a vulcanized body is compounded on a self-lubricating sleeve, and then the self-lubricating sleeve is pressed on an inner sleeve; and meanwhile, an outer tile cover of the vulcanized body is divided into two sectioning trapezoidal seam allowance matched structures, and pressing rings are arranged at the two ends of the outer tile cover, are assembled on the inner sleeve in an interference fit manner and are inserted into a cavity of the vulcanized body. According to the method for improving the tear resistance and the torsion performance of the plate spring bushing and the plate spring bushing provided by the invention, axial movement and radial deformation limiting of the rubber elastomer are achieved by controlling the relative positions of the pressing rings at the two ends and two sectioning trapezoid seam allowances of the outer tile cover, so that the installation contact area is increased, and the bolt pre-tightening force is improved; and the self-lubricating bush is provided with a lubricating and abrasion-resistant coating, so that rubber layer abrasion and metal friction abnormal sound during torsion are avoided, and the pre-tightening force of a bolt is improved to improve the tear resistance and the torsion performance of rubber of the plate spring bushing.

Description

technical field [0001] The invention relates to a method for improving the performance of a leaf spring bushing and the leaf spring bushing thereof, in particular to a method for improving the tear resistance and torsion performance of the leaf spring bushing and the leaf spring bushing. The method of bushing tear resistance and torsion performance and the leaf spring bushing improve the structure of the leaf spring bushing to ensure a large torsion angle without axial movement and meet the requirements of radial heavy load, reliability High, greatly improving its service life. Background technique [0002] The leaf spring bushing is an important part of the leaf spring system, which is used for the flexible connection of the leaf spring and the frame. Some leaf spring bushing systems have the function of absorbing some high-frequency vibrations through structure and composition, and at the same time, during the operation of the leaf spring It has a certain protective effec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/38F16F1/387B60G11/12
CPCF16F1/38F16F1/3842F16F1/3863F16F1/3828F16F1/387B60G11/12F16F2230/04F16F2230/02F16F2230/0005F16F2226/045F16F2226/04
Inventor 艾敏李晓晔刘峰钟海兵郭春杰荆问宇
Owner BOGE RUBBER&PLASTICS ZHUZHOU CO LTD
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