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Hydraulic bushing comprising metal spacers

A technology of hydraulic bushing and metal spacer, applied in bearings, shock absorbers, mechanical equipment, etc., can solve the problems of leakage, short service life, affecting the use of hydraulic bushings, etc.

Pending Publication Date: 2019-08-30
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above-mentioned hydraulic bushing, the adjustment range of its stiffness is limited, and the flow performance of the liquid in the liquid cavity is poor, and the radial damping effect of the product is poor
In addition, during the application process, the rigidity of the rubber body is low, so that the rubber body is easily damaged due to deformation, and the service life is short, which will cause channeling and leakage of hydraulic fluid, which greatly affects the use of hydraulic bushings

Method used

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  • Hydraulic bushing comprising metal spacers
  • Hydraulic bushing comprising metal spacers
  • Hydraulic bushing comprising metal spacers

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Embodiment Construction

[0028] The present invention is introduced below by accompanying drawing.

[0029] figure 1 Schematically shows an axial cross-sectional view of a hydraulic bush comprising a metal spacer according to the present invention. Such as figure 1 As shown, the hydraulic bushing 100 includes a mandrel 110 , a flow channel body 120 disposed radially outside the mandrel 110 , and a casing 130 sleeved radially outside the flow channel body 120 in a compression manner. Mandrel 110 is typically a preform. The two ends of the mandrel 110 can be connected with the bogie frame of the railway train, for example, and the outer casing 130 is connected with the positioning boom.

[0030] Such as figure 1 As shown, an inner sleeve 150 is sheathed on the mandrel 110 . A rubber body 140 is filled in the annular gap between the inner sleeve 150 and the flow channel body 120 . Two main liquid cavities 142 for accommodating hydraulic fluid are arranged on the rubber body 140 , and the two main l...

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Abstract

The invention provides a hydraulic bushing comprising metal spacers. The hydraulic bushing comprises a mandrel, a flow channel body and the plurality of metal spacers, wherein a flow channel body is arranged on the mandrel in a sleeve mode, a gap between the mandrel and the flow channel body is filled with a rubber body, two main liquid cavities used for containing hydraulic fluid are oppositely constructed in the rubber body in the radial direction, and the two main liquid cavities communicate with each other through a flow channel in the flow channel body; the plurality of metal spacers arranged in the rubber body, and are located between the two main liquid cavities in the circumferential direction, two branch parts which are spaced in the radial direction are formed in the circumferential end parts of the main liquid cavities, and the circumferential end parts of the metal spacers extend between the two branch parts.

Description

technical field [0001] The present invention relates to a liquid composite bushing for a vehicle, especially a rail vehicle. In particular, it relates to a hydraulic bushing that includes a metal spacer. 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 flow channel body sleeved on the outside of the mandrel shaft, and a jacket sleeved on the outside of the flow channel body for compression. A rubber body is filled in the gap between the mandrel and the flow channel body, and grooves are configured on the outer surface of the flow channel body, preferably in a helical circumferential distribution form. In this way, the groove together wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/06F16F15/126F16F15/16
CPCF16C32/0633F16C32/0685F16F15/126F16F15/161F16F13/1481
Inventor 邹波宋庆伟丁行武罗俊卜继玲任文毅
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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