Connecting device of railway vehicle side rolling resistant torsion bar device and vehicle body

Abstract

The invention relates to the technical field of railway vehicle connecting pieces, in particular to a connecting device of a railway vehicle side rolling resistant torsion bar device and a vehicle body. The connecting device comprises a structure member and an elastic rubber joint, wherein the structure member is used for being fixedly connected with an upper connecting rod head shaft of the side rolling resistant torsion bar device; the elastic rubber joint is used for being fixedly connected with the vehicle body; two installation holes are arranged on the structure member and distributed in the vertical direction; central axes of the holes are vertical to each other; the upper connecting rod head shaft of the side rolling resistant torsion bar device is in interference fit with the lower installation hole; the elastic rubber joint is tightly installed on the upper installation hole and connected with the vehicle body by screws or bolts; and the invention ensures that the vehicle has favorable flexibility coefficient and side rolling resistant capability, can ensure that the side rolling resistant device can not form excessive restraint on the side rolling of the vehicle body relative to a bogie and mitigate moving action force between the vehicle body and the side rolling resistant torsion bar device when the side rolling resistant torsion bar device acts and improves dynamic performance indexes, such as wheel load reducing rate, and the like when the vehicle passes through a curve or is driven on a line with larger line unevenness.

Description

technical field [0001] The invention relates to the technical field of railway vehicle connectors, in particular to a connection device between a railway vehicle anti-rolling torsion bar device and a vehicle body. Background technique [0002] The car bodies of current high-speed passenger cars, main line passenger cars and subway vehicles are all supported on the bogie frame by air springs to obtain better lateral and vertical performance, and the height of empty and heavy vehicles can be adjusted. However, the roll stiffness of the car body relative to the bogie frame is also reduced, so that the vehicle's flexibility coefficient and the roll angle of the car body relative to the bogie when passing a curve are significantly increased, which not only affects the stability and comfort of the vehicle running, but also When the vehicle passes through the curve quickly, the vehicle body is easy to tilt to the outside of the curve under the action of centrifugal force, which red...

AI Technical Summary

Problems solved by technology

In practice, it is found that although the anti-roll torsion bar device significantly improves the compliance coefficient and the lateral comfort of the vehicle when passing through curves, the use of the anti-roll torsion bar device also reduces the adaptability of the vehicle to uneven roads. Reduce the adaptability to changes in line curvature when the vehicle passes through the curve quickly, and cause some important curve passing safety indicators such as wheel load reduction rate and derailment coefficient to be too large, even exceeding the limit requirements in the railway vehicle dynamics standard

[0004] Theoretical calculations show that reducing the structural rigidity of the torsion bar in the traditional anti-roll torsion bar device is beneficial to solve the above problems, but reducing the structural rigidity of the torsion bar means that the diameter of the torsion bar needs to be reduced, which will reduce the load-carrying capacity of the torsion bar. reduce the stress and increase the stress, so reducing the diameter of the torsion bar in the traditional anti-roll device cannot achieve the requirement of reducing the stiffness

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