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Hydraulic bushing

A hydraulic bushing and hydraulic fluid technology, which is applied in the functional characteristics of spring/shock absorber, shock absorber, spring, etc., can solve the problems of limited range of stiffness and damping adjustment, and achieve the effect of enhancing variable stiffness and reducing stress Vibration effect, improve the effect of damping effect

Pending Publication Date: 2019-01-25
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above hydraulic bushings, the range of stiffness and damping adjustment is still limited

Method used

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with accompanying drawing. It should be noted that the terms "axial" and "radial" in this article refer to figure 1 in the horizontal and vertical directions.

[0024] figure 1 A hydraulic bushing 100 according to one embodiment of the invention is schematically shown. Such as figure 1 As shown, the hydraulic bushing 100 includes a mandrel 10 , a first flow passage body 20 arranged radially outside the mandrel 10 , and a sleeve 30 sleeved radially outside the first flow passage body 20 in a compression manner. The first channel body 20 is generally configured in the form of a sleeve part. The mandrel 10 is usually a preform, and in figure 1 In the exemplary embodiment shown, it is configured in the form of a stepped shaft. The two ends of the mandrel 10 can be connected with the bogie of the railway train, for example, and the outer casing 30 is connected with the positioning rotating arm. An op...

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Abstract

The invention provides a hydraulic bushing, comprising: a mandrel; a first runner member sleeving the mandrel and in sleeve shape, wherein a gap between the mandrel and the first runner member is filled with first rubber, the outer surface of the first runner member is provided with a first runner for a hydraulic fluid, the first rubber is radially oppositely provided with two main fluid cavitiesto hold the hydraulic fluid, and the two main fluid cavities are communicated with each other via the first runner; an outer sleeve that sleeves the first runner member radially in compressing manner;a sealing component arranged on the at least one axial outer side of the first runner member, wherein the sealing component and the outer sleeve jointly define an auxiliary fluid cavity to hold the hydraulic fluid. The sealing component includes a support ring sleeving the mandrel; the support ring includes a radial protrusion inside the auxiliary fluid cavity; the radial protrusion is in hermetic contact with the inner surface of the outer sleeve so that the auxiliary fluid cavity is divided into a first sub-cavity on the axial outer side and a second sub-cavity on the axial inner side.

Description

technical field [0001] The invention relates to a hydraulic bushing for a vehicle, in particular a rail vehicle. Background technique [0002] Hydraulic bushings are widely used in vehicles (such as automobiles and rail vehicles), and are mainly installed on the suspension or bogie of the vehicle to buffer vibration and shock to improve the stability and safety of the vehicle. . [0003] Chinese patent document CN108150536A discloses a hydraulic bushing. The hydraulic bushing includes a mandrel, a first channel body sheathed on the outside of the mandrel, and a jacket sleeved on the outside of the first channel body for compression. The gap between the core shaft and the first flow channel body is filled with a first rubber body, and grooves are configured on the outer surface of the first flow channel body. Two liquid cavities for accommodating liquid are radially and oppositely formed on the first rubber body, wherein the groove and the jacket form a flow channel, and t...

Claims

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Application Information

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IPC IPC(8): F16F13/14
CPCF16F13/1409F16F13/1454F16F13/1463F16F2228/06
Inventor 邹波丁行武刘桂杰张亚新姜其斌夏彰阳
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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