Connecting rod for anti-side-rolling torsion rod and method for improving load tolerance of connecting rod

Abstract

The invention relates to a connecting rod for an anti-side-rolling torsion rod. The connecting rod for the anti-side-rolling torsion rod comprises a connecting rod (12), an upper ball head assembly (1) and a lower ball head assembly (2); and one end of each of the upper ball head assembly (1) and the lower ball head assembly (2) is fixedly connected with the connecting rod (12), and the other end of each of the upper ball head assembly (1) and the lower ball head assembly (2) is fixedly connected with a vehicle body and the anti-side-rolling torsion rod. The connecting rod for the anti-side-rolling torsion rod is characterized by also comprising a flange disk (4); at least one head of the upper ball head assembly (1) and the lower ball head assembly (2) is fixedly connected with the vehicle body and / or the anti-side-rolling torsion rod through the flange disk (4); the flange disk (4) is protruded outwards to form a convex surface body (41); the convex surface body (41) is embedded into a connecting interface of the upper ball head assembly (1) and the vehicle body and / or the lower ball head assembly (2) and the anti-side-rolling torsion rod; and an eccentric structure and a dustproof cover (7) with a rigid sealing structure are provided, so that rotation of a ball hinge spindle and deformation of the dustproof cover caused by torsion are avoided. The service life of the connecting rod for the anti-side-rolling torsion rod is prolonged, and the load tolerance of the connecting rod for the anti-side-rolling torsion rod is improved.

Description

technical field [0001] The invention relates to the technical field of an anti-rolling torsion bar of a rail vehicle, in particular to a connecting rod for an anti-rolling torsion bar and a method for improving its load tolerance. Background technique [0002] With the development of urban rail vehicles, air springs are being used more and more. After the secondary suspension adopts the air spring with large disturbance, although the vertical performance of the vehicle is better, it also brings a relatively big problem, that is, the stiffness of the vehicle roll is reduced. Due to the reduction of vehicle roll stiffness, the vehicle's flexibility coefficient and roll angle will increase significantly, which not only affects the stability of vehicle operation and the comfort of passengers, but also brings serious safety hazards. In order to solve this problem, a set of anti-roll torsion bars is mostly installed in the suspension system of the bogie now. The anti-rolling tor...

AI Technical Summary

Problems solved by technology

After the secondary suspension adopts the air spring with large disturbance, although the vertical performance of the vehicle is better, it also brings a relatively big problem, that is, the stiffness of the vehicle roll is reduced.

[0009] The connecting rods in the anti-rolling torsion bar of the vehicle involved in the above comparative documents have not proposed corresponding improvements for their load tolerance. Larger meaning

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