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Axial precompression method for combined ball hinged rubber elastic element and product obtained thereby

An elastic element and pre-compression technology, applied in the direction of elastic shock absorbers, bogies, railway couplings, etc., can solve the problems of uneven stress and high concentricity, and achieve uniform thickness, large axial stiffness, and smooth design Effect

Active Publication Date: 2006-09-06
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to solve the shortage of the existing ball joint rubber elastic elements, and provide a new ball joint type rubber elastic element which is easy to pre-compress, produces less uneven stress, has high concentricity, and is easy to control the amount of pre-compression. Assembly method of hinge type rubber elastic element

Method used

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  • Axial precompression method for combined ball hinged rubber elastic element and product obtained thereby
  • Axial precompression method for combined ball hinged rubber elastic element and product obtained thereby
  • Axial precompression method for combined ball hinged rubber elastic element and product obtained thereby

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Experimental program
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Effect test

Embodiment 1

[0015] It can be seen from the drawings that the spherical hinge rubber elastic element 1 includes a metal outer casing 2, an elastic rubber body 3, a metal inner casing 4 and a mandrel 5, and the elastic rubber body 3 is located between the metal outer casing 2 and the metal inner casing 4, And the outer surface of the elastic rubber body 3 is bonded to the metal outer casing 2, the inner surface of the elastic rubber body 3 is bonded to the metal inner casing 4, and the metal inner casing 4 is tightly sleeved on the mandrel 5 through an interference fit. It is characterized in that the pre-compression stress of the elastic rubber body 3 of the ball-hinge rubber elastic element 1 is provided by an axial compression, and the metal jacket 2, the elastic rubber body 3, and the metal The inner sleeve 4 is a two-stage combined structure independent of each other. First, the metal inner sleeve 4, the metal outer sleeve 2 and the elastic rubber body 3 are vulcanized as a whole to for...

Embodiment 2

[0017] The structure of the second embodiment is the same as that of the first embodiment, except that each section of the elastic rubber body can be a non-axial linear curved arc shape or a bent shape, and the arc angle or bending angle A or B of the arc is 160° , The ratio of the diameter to the shaft stiffness of the ball joint type rubber elastic element can reach about 5:1. In this way, relatively high radial stiffness can be obtained.

Embodiment 3

[0019] The structure of the third embodiment is the same as that of the first embodiment, except that each section of the elastic rubber body can be a non-axial linear curved arc shape or a bent shape, and the arc angle or bending angle A or B of the arc is 120° , The diameter-to-axis stiffness ratio of the ball joint type rubber elastic element can reach about 3:1. In this way, a relatively uniform radial and axial stiffness can be obtained.

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Abstract

The invention relates to a axial pre-compress method of integrated ball hinged rubber flexible element and relative product, which comprises a metallic sheath, a flexible rubber element, a metallic inner sheath and a core axle. It is characterize in that: metallic sheath, flexible rubber element and the metallic inner sheath are independent two-section integrated structures, which are connected along the axle on the core axle; the flexible rubber pre-compress stress is realized by adjusting the axial position between the metallic sheath and the metallic inner sheath. And said stress can be formed by the axial separated two sections axially compress the metallic inner sheath and adjust the axial position of metallic inner sheath on the core pin.

Description

technical field [0001] The invention belongs to a method for assembling vibration-damping parts, in particular to a method for assembling rubber elastic components of ball joints, which are mainly used in rubber elastic components used in bogies of various locomotives and vehicles, and can also be applied to engineering machinery and other parts of any vibration-damping elastic connection. The invention also relates to the products of this method. Background technique [0002] Ball joint type rubber elastic element is a commonly used rubber-metal composite damping element, which can be widely used in various vibration damping places, especially in the bogies of rolling stock. When the ball joint rubber elastic element is installed, in order to improve the performance of the ball joint rubber elastic element, the elastic elements of many pairs of ball joint rubber elastic elements artificially create some precompressive stress. Existing spherical hinge rubber elastic elemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/12B61F5/00B61G5/02
Inventor 张春良袁贵根唐先贺
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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