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Hydraulic bushing

A technology of hydraulic bushing and hydraulic fluid, applied in the functional characteristics of springs/shock absorbers, shock absorbers, springs, etc., can solve the problems of limited range of stiffness and damping adjustment, etc., to expand the range of stiffness adjustment and improve variable stiffness. Effects of properties and damping effects

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

[0021] 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.

[0022] 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; and an outer sleeve that sleeves the first runner member radially in compressing manner. The first rubber is radially oppositely provided with two main fluid cavities to hold the hydraulic fluid, and the two main fluid cavities are communicated with each other via the first runner. A sealing component is arranged on the at least one axial outer side of the first runner member; the sealing component and the outer sleeve jointly define two auxiliary fluid cavities. A second runner member is arranged in each auxiliary fluid cavity; the outer surface of each second runner member is provided with a second runner for the hydraulic fluid; the two auxiliary fluid cavities are communicated with each other via the second runners.

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 邹波丁行武王凤夏彰阳卜继玲约瑟夫·格罗斯王涛
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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