Anti-side rolling torsion rod axis for railway vehicle and manufacturing method thereof

Abstract

The invention relates to an anti-side rolling torsion rod axis for a railway vehicle and a manufacturing method thereof. The anti-side rolling torsion rod axis for the railway vehicle mainly comprises a torsion rod axis, torsion arms, a supporting seat, a lower joint axis of a vertical connecting rod, the vertical connecting rod, an upper joint axis of the vertical connecting rod and the like, wherein the torsion rod axis is connected with the left torsion arm and the right torsion arm in a conical surface matching way. Compared with the current typical torsion rod types (cylindrical surface interference fit and splined connection), the invention has the advantages that the torsion rod axis and the torsion arms can be assembled through the action of high pressure oil without heating or cooling; the purposes of disassembly and assembly for many times can be realized, and the combined surface of the torsion rod axis and the torsion arms can not be damaged; the magnitude of interference can be accurately adjusted by controlling the displacement in the axial direction; and the type of connecting with a steering frame is more flexible, and the influence caused by the steering frame structure is little.

Description

technical field [0001] The invention belongs to a part for a rail transit vehicle and a manufacturing method thereof, in particular to an anti-rolling torsion bar shaft for a rail transit vehicle and a manufacturing method thereof. The torsion bar shaft is installed on the rail vehicle body and bogie. When the vehicle is rolling, the anti-rolling torsion bar shaft is torsionally deformed to generate roll stiffness, and together with other components, it provides the necessary stability for the safe operation of the vehicle. The rolling stiffness is used to meet the requirements of vehicle dynamic performance and ensure the safe operation of the vehicle. technical background [0002] Due to the characteristics of small vertical stiffness and large equivalent deflection, air springs are very suitable for the development of secondary suspension of rail vehicles, and have been increasingly widely used in recent years. However, due to the small vertical stiffness of the air spri...

AI Technical Summary

Problems solved by technology

However, due to the small vertical stiffness of the air spring, the roll angle of the vehicle will increase during the operation of the vehicle, resulting in a small roll stiffness of the vehicle, and even the phenomenon of roll instability, resulting in a decrease in the safety and smooth running performance of the vehicle. It is necessary to increase the roll stiffness of the vehicle separately to limit its roll angle, so as to improve the anti-roll performance of the vehicle, but at the same time, it cannot affect the vibration characteristics of the vehicle in the directions of ups and downs, yaw, telescopic, nodding and shaking

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