Novel rubber ball joint

A rubber ball joint, a new type of technology, is applied in the direction of shafts and bearings, pivots, and pivot connections. It can solve the problems of increasing the yaw torsion angle, reducing the yaw torsion stiffness, and increasing the radial stiffness, etc., so as to increase the yaw The effect of torsion angle, reduced torsional stiffness, and increased radial stiffness

Active Publication Date: 2021-11-09
ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is: how to simultaneously increase the radial stiffness, reduce the eccentric torsional stiffness and correspondingly increase the eccentric torsional angle when the eccentric torsional stiffness is low

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 As shown in -7, a new type of rubber ball joint includes a mandrel 1, an outer coat 2 that is coaxial with the mandrel 1 outside the mandrel 1, and is respectively connected to the core by vulcanization between the mandrel 1 and the outer mandrel 2. The rubber layer 3 to which the shaft 1 and the casing 2 are bonded. In the rubber layer 3 on the upper side and the lower side of the mandrel 1, there are symmetrically arranged rubber cavities 31 . In the rubber cavity 31, there is a supporting body whose rigidity is greater than that of the rubber body. The outer side of the supporting body is installed on the jacket, and there is a universal deflection structure between the inner side of the supporting body and the mandrel 1. There are offset gaps between the 31 inner walls. Under working conditions, the supporting body can provide a radial support between the mandrel 1 and the outer casing 2 with a stiffness greater than that of the rubber body. At th...

Embodiment 2

[0046] Such as Figure 8 -shown in 10, its difference with embodiment one is:

[0047] The difference between the spherical radius of the concave spherical surface 51 and the spherical radius of the outer spherical surface 13 is 0.1mm-0.3mm. Since the spherical radius of the outer spherical surface 13 is smaller than that of the concave spherical surface 51 , compared with the first embodiment, the spherical radius of the outer spherical surface 13 remains unchanged, but actually increases the spherical radius of the concave spherical surface 51 . For the processing and assembly of each part of the rubber ball joint of the present invention, the larger the difference between the spherical radius of the concave spherical surface 51 and the spherical radius of the outer spherical surface 13, the processing and assembly can allow a certain centering deviation (concave spherical surface 51 and two sphere centers of the outer spherical surface 13 require to be on a straight line w...

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Abstract

The invention discloses a novel rubber ball joint. The novel rubber ball joint comprises a mandrel, an outer sleeve sleeving the mandrel and a rubber layer, wherein the rubber layer is arranged between the mandrel and the outer sleeve and adhered to the mandrel and the outer sleeve through vulcanization; rubber cavities are symmetrically formed in the rubber layer at the upper side and the lower side of the mandrel; a support body with the rigidity greater than that of a rubber body is arranged in each rubber cavity, the outer sides of the support bodies are installed on the outer sleeve; a universal deflection structure is arranged between the inner sides of the support bodies and the mandrel; and a deflection gap is formed between the peripheries of the support bodies and the inner walls of the rubber cavities. Under the working condition, the support bodies can provide radial support with the rigidity greater than that of the rubber body between the mandrel and the outer sleeve, and meanwhile, the outer sleeve can make deflection torsion in any direction around the center of the rubber ball joint through the universal deflection structure. The radial rigidity of the novel rubber ball joint is remarkably improved, and the reaction timeliness and effectiveness of an anti-roll torsion bar in restraining side rolling of a train compartment are remarkably enhanced. Meanwhile, the deflection torsional rigidity of the novel rubber ball joint is greatly reduced, and the service life of the rubber ball joint is prolonged.

Description

technical field [0001] The invention relates to a novel rubber ball joint used on a train anti-rolling torsion bar, belonging to the technical field of ball joints. Background technique [0002] The upper and lower ends of the vertical tie rod of the anti-rolling torsion bar on the train should use spherical joints. [0003] Metal-rubber ball joints can provide a large yaw torsion angle and small yaw torsion stiffness, but the product is prone to abnormal noise, short product life, and high cost. [0004] The rubber ball joint has low manufacturing cost and is not easy to produce abnormal noise. However, the existing rubber ball joints used for anti-rolling torsion bars are filled with solid rubber through vulcanization, that is, solid rubber vulcanization is used between the metal mandrel and the metal jacket. Compared with the anti-rolling of the train, this rubber ball joint is characterized by relatively small radial stiffness, relatively large yaw torsion stiffness, a...

Claims

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Application Information

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IPC IPC(8): F16C11/06F16C11/08
CPCF16C11/06F16C11/083
Inventor 李刚刘文松於珂睿孙海燕杨哲李东阁冯永平
Owner ZHUZHOU TIMES RUIWEI ANTI VIBERATION EQUIP LTD
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