Auxiliary spring device used for hydraulic bushing

An auxiliary spring, hydraulic bushing technology, applied in the direction of spring, spring/shock absorber, shock absorber-spring combination, etc., can solve the problem of limited range of stiffness and damping adjustment, and achieve the effect of enhancing variable stiffness, good Vibration reduction effect, effect of improving 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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  • Auxiliary spring device used for hydraulic bushing
  • Auxiliary spring device used for hydraulic bushing
  • Auxiliary spring device used for hydraulic bushing

Examples

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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 including an auxiliary spring arrangement 50 according to an embodiment of the invention is schematically shown. like figure 1 As shown, the hydraulic bushing 100 includes a mandrel 10 , a flow channel body 20 arranged radially outside the mandrel 10 , and a casing 30 sleeved on the radially outside of the flow channel body 20 in a compression manner. The runner 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 ...

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Abstract

The invention provides an auxiliary spring device used for a hydraulic bushing, wherein the hydraulic bushing comprises a core shaft, sleeve-shaped flow channel bodies formed in the core shaft in a sleeved manner, and outer sleeves tightly arranged on the radial outer sides of the flow channel bodies in a sleeved manner; the auxiliary spring device comprises supporting rings which are formed in the core shaft and is positioned on the axial outer sides of the flow channel bodies; the supporting rings are configured to auxiliary liquid cavities which are used for containing hydraulic liquid andare cooperatively defined with the outer sleeves; and the supporting rings further comprise radial projections inside the auxiliary liquid cavities, the radial projections are in sealing contact withthe inner surfaces of the outer sleeves, so that the auxiliary liquid cavities are divided into first sub-cavities on the outer sides of the axial direction and second sub-cavities on the inner sidesof the axial direction.

Description

technical field [0001] The invention relates to an auxiliary spring arrangement for use in hydraulic bushings for vehicles, especially rail vehicles. 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F13/14
CPCF16F13/1409F16F13/1454F16F13/1463F16F13/1481
Inventor 卜继玲丁行武邹波夏彰阳李艺盟张亚新
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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