Method of forming liquid cavities by additionally arranging four-pedal intermediate spacer bush and cavity structures

Abstract

The invention discloses a method of forming liquid cavities by additionally arranging a four-pedal intermediate spacer bush and cavity structures. The method comprises the following steps: first, additionally arranging the four-pedal intermediate spacer bush between a mandrel and an outer sleeve; then hollowing the four-pedal intermediate spacer bush to form a plurality of spaces; then bonding thefour-pedal intermediate spacer bush and the mandrel together by rubber vulcanization; and forming independent liquid cavities by means of rubber and the four-pedal intermediate spacer bush. Accordingto the method, relatively small radial rigidity and relatively large axial rigidity can be provided, and meanwhile, a relatively large dynamic-static ratio is achieved, so that the product performance of a liquid rubber compound node is optimized.

Description

technical field [0001] The invention relates to a method and a structure for forming a liquid cavity in a liquid rubber composite node, in particular to a method and a cavity structure for forming a liquid cavity by adding a four-petal middle spacer. Background technique [0002] According to the dynamic requirements, when the pivoting arm node is running in a straight line at high speed (high frequency vibration), it provides a large radial stiffness to ensure the running stability and increase the critical speed; when it passes the curve (low frequency and large amplitude), it provides a small stiffness performance Guaranteed over-curve performance and reduced wear; it is difficult for ordinary joints to achieve the above characteristics, especially for old lines, where wheel rails and lines wear a lot, and the maintenance cost is high. Therefore, it is necessary to use a new product that has the above characteristics at the same time—liquid rubber composite joints. [000...

AI Technical Summary

Problems solved by technology

[0002] According to the dynamic requirements, when the pivoting arm node is running in a straight line at high speed (high frequency vibration), it provides a large radial stiffness to ensure the running stability and increase the critical speed; when it passes the curve (low frequency and large amplitude), it provides a small stiffness performance Guarantee over-curve performance and reduce wear; it is difficult for ordinary joints to achieve the above characteristics, especially for old lines, where the wear of wheels, rails and lines is high, and the maintenance cost is high. Therefore, it is necessary to use a new product that has the above characteristics at the same time—liquid rubber composite joints

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