A connection structure between torsion bar and rocker arm of rolling stock anti-rolling torsion bar device

Abstract

The invention discloses a connection structure between a torsion bar and a rocker arm of an anti-rolling torsion bar device for a locomotive and vehicle. The connection structure includes a bracket, a torsion bar, a rocker arm, and a docking device. Snap ring, docking device, bracket, the docking device is fixed with the bracket, two sets of level adjustment mechanisms are arranged on the docking device, and rocker arms are arranged on the docking device, and the two sets of level adjustment mechanisms swing the rocker arms up (down) The force of the torsion bar is amplified and acts on the torsion bar. The invention is scientific and reasonable, and is safe and convenient to use. The docking device will only generate two sets of opposite forces on the torsion bar, and the force of the rocker arm's up (down) swing can be amplified by the level adjustment mechanism. And act on the torsion bar, the torsion bar is torsional deformation under the action of opposite forces at both ends, and the torsional deformation of the torsion bar is increased by the amplified force, so as to obtain a large elastic counter moment to resist the roll of the vehicle, thereby improving Rolling resistance of the vehicle.

Description

technical field [0001] The invention relates to the technical field of a connection structure between a torsion bar and a rocker arm, in particular to a connection structure between a torsion bar and a rocker arm of an anti-rolling torsion bar device for a rolling stock. Background technique [0002] With the development of high-speed trains and urban rail vehicles, air springs are being used more and more. After the secondary suspension adopts air springs with large deflection, better vertical performance of the vehicle is obtained, but it also brings a relatively large The problem is that the roll stiffness of the vehicle is reduced. [0003] 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 the vehicle, but also brings serious safety hazards. In order to solve this problem, in order to suppress the vehicle's anti-roll To reduce the stiffness, the vehicl...

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Problems solved by technology

[0004] At present, the torsion bar and the rocker arm adopt a spline connection structure. In this structure, in the state of rolling motion, the force-bearing part is only the partial spline tooth surface, so the contact between the tooth surface and the tooth surface belongs to the line contact motion pair, and the connection strength is lower than that of the surface. The contact connection structure, and the spline has strict requirements on the angle, so it is difficult to realize the assembly

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