Deflection-resisting rail spacing device

Abstract

The invention relates to a rail accessory, in particular to a deflection-resisting rail spacing device which comprises anti-bending binding beams and clamping components. The anti-bending binding beams are located below two steel rails on the same line and located between each two adjacent fasteners in the longitudinal direction of the steel rails, and the clamping components clamp and fix the two steel rails at steel rail webs or rail bottoms and at least partially fixed on the anti-bending binding beams. Transverse stiffness of the steel rails is enhanced while bending moment generated by the opposite rail bottoms when outside disturbing force is acted on rail heads of the steel rail can be offset effectively, shimmy of the steel rails during working can be controlled effectively, and the deflection-resisting rail spacing device is outstanding in advantage of overquick wear prevention of the steel rails and obvious in effect. In addition, the deflection-resisting rail spacing device is capable of effectively improving comfortability during train running and achieving excellent noise reduction performance, has the advantages of simple and compact structure, high utilization rate of rail space, excellent vibration reduction and noise reduction performances, economy, practicality, high applicability and the like, and quite wide in market application prospect.

Description

technical field [0001] The invention belongs to the field of rail transportation, and relates to a rail accessory, in particular to a distance-fixing device that limits rail spacing and can limit rail deflection shimmy. Background technique [0002] In recent years, under the development trend of high-speed rail transit, the requirements for vibration and noise reduction of rail transit are increasing. In order to solve the vibration and noise nuisance problems generated during the operation of rail transit, various high-elastic backing plates and high-elastic fasteners have been widely used. The application of these vibration reduction measures significantly reduces the vertical stiffness of the rail and achieves a good vibration reduction effect. However, because the lateral stiffness of the rail is also reduced at the same time, the lateral vibration of the rail increases, resulting in the wheel rail when the vehicle passes by. The lateral slip between the trains increas...

AI Technical Summary

Problems solved by technology

However, because the rail has a certain height, the lateral force generated by the wheel-rail interaction acts on the rail head of the rail, which will generate a large bending distance relative to the rail bottom, and the existing fixed-distance connecting rod is basically designed for tensile strength. The bending moment is less considered, so the existing fixed-distance connecting rod is strong in tension and weak in bending. Therefore, this fixed-distance connecting rod can ensure the gauge of the rail bottom, but cannot limit the vibration displacement of the rail head due to the bending moment

Therefore, the rail will still vibrate, and the wear and corrugation of the rail cannot be suppressed.

[0004] To sum up, the existing technology cannot cope with the bending distance generated at the rail head relative to the rail bottom when the rail is working, so the deflection and shimmy phenomenon of the rail cannot be controlled, so the performance of preventing rail wear is greatly affected , the market urgently needs a new product that can completely solve the above problems

[0005] In addition, the application of highly elastic fasteners causes large vertical and lateral displacements and noises on the rails, which affects the comfort of the train. In order to reduce the vibration amplitude of the rails without changing the elasticity of the fasteners, it is best The best way is to increase the para-vibration mass of the rail fastener vibration isolation system, but most of the fastener systems so far do not have much space and mounting parts for increasing the mass

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