Traction rubber spherical hinge and multiple stiffness variation method thereof

Abstract

A traction rubber spherical hinge comprises a core shaft, a jacket and a rubber layer, wherein the rubber layer is arranged between the core shaft and the jacket in a vulcanization bonding manner. The traction rubber spherical hinge is characterized in that the rubber exterior surface of the rubber layer comprises an end surface I and an end surface II; the end surface I is close to the jacket and the end surface II is close to the core shaft; the end surface I takes the shape of an outward bulge and comprises a plurality of ring-shaped surfaces which are connected in sequence; the outward bulge is gradually close to the jacket from exterior to the interior; the end surface II is designed as a ring-shaped plane and has smooth transition with the end surface I through a rounded corner; and the end surface I is in transition connection with the inner wall of the jacket through a small rounded corner. The traction rubber spherical hinge provided by the invention is high in anti-fatigue performance, has a multiple stiffness variation function, and is high in nonlinear stiffness. The invention further provides a multiple stiffness variation method of the traction rubber spherical hinge.

Description

technical field [0001] The invention relates to a traction rubber ball joint and a method for multiple stiffness changes thereof, which realize multiple stiffness changes of the traction rubber ball joint during the load-bearing process, and belong to the field of rail vehicle elastic components. Background technique [0002] During the loading and running process of the spherical hinge product, according to the installation position and design function, it can realize vibration reduction, traction [0003] Leading and flexible connection and so on. In order to ensure the comfort of vehicle operation, the stiffness of the product is required to be small when the load is small (normal operation); but in order to ensure the reliability of the vehicle operation, the stiffness of the product is required to increase significantly when the load is large (starting and braking) so that it can be timely Therefore, the spherical joint, especially the traction spherical joint, needs...

AI Technical Summary

Problems solved by technology

However, it does not solve the technical problem of how to realize the multiple variable stiffness of the product and how to adjust the nonlinear stiffness of the product according to the bearing requirements under complex operating conditions.

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