A kind of anti-rolling stiffness method and anti-rolling device

Abstract

An anti-rolling device is provided, comprising a pair of connecting rods, a pair of torsion arms and a pair of elastic connecting parts, so that the pair of connecting rods are respectively connected to the vehicle body, and three rotating connection points are respectively set on the pair of torsion arms, Rotate the connecting point A to the other end of the connecting rod, rotate the connecting point O to the bogie, connect the two ends of the elastic connecting part between the bogie and the rotating connecting point B, and connect the two ends of the elastic connecting part to the bogie The frame and the rotating connection point B are all rotating connections, and the angle ∠AOB≠180° formed by the three rotating connection points can change the anti-roll stiffness by adjusting the damping of the elastic connecting parts. The elastic connecting part provides damping effect for the rotation of the torsion arm, and by changing the damping coefficient of the elastic connecting part, the stiffness of the whole anti-rolling device can be changed when the vehicle rolls sideways. The torsion arms in the two sets of anti-rolling devices work independently, and the change in stiffness and the torsion angle of the torsion arms when the vehicle rolls are not affected by each other.

Description

technical field [0001] The invention relates to the technical field of an anti-rolling torsion bar system for a rail vehicle, in particular to an anti-rolling variable stiffness method and an anti-rolling device. Background technique [0002] The anti-rolling torsion bar system is referred to as the torsion bar system, which is used in rail transit vehicles, such as urban rail subway vehicles, high-speed EMU vehicles and trunk railway vehicles, to improve the anti-rolling rigidity of the vehicle during operation. Including torsion-bearing spring steel torsion bar shaft, torsion arm, vertical link assembly and support seat assembly, etc. The anti-rolling torsion bar system (referred to as the torsion bar system) is a key component of rail transit vehicles (including trunk railway vehicles, subway urban rail vehicles, trams, etc.), and is used to restrain the vehicle from turning, crosswind, etc. For body roll, the torsion bar system consists of a vertical link assembly (link...

AI Technical Summary

Problems solved by technology

Since the roll stiffness of the anti-roll torsion bar in the current structure has been determined by the product structure, the roll stiffness can only be adjusted by changing the diameter of the torsion bar shaft without changing the interface size, which obviously cannot meet the above requirements

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