Chute-mounted suspended steel rail vibration reduction fastener

Abstract

The invention belongs to the field of rail vibration reduction and noise reduction, and provides a chute-mounted suspended steel rail vibration reduction fastener. A structure for limiting a lateral bracket (3) is arranged at the joint position of a fastener bottom plate (4) and the lateral bracket (3), and the limiting structure is provided with at least one limiting surface I (6) for limiting the lateral bracket (3) to move in the laying direction of a steel rail and at least one limiting surface II (14) for limiting the lateral bracket (3) to move vertically; and a space for allowing the lateral bracket (3) to horizontally move in the direction vertical to the laying direction of the steel rail (1) is formed between the limiting surface I (6) and the limiting surface II (14). Through the fastener, movement of the lateral bracket (3) in the vertical direction and the laying direction of the steel rail (1) can be effectively controlled, torsion of the lateral bracket (3) due to torsion of the steel rail (1) can be effectively controlled, the stability of the lateral bracket (3) structure is effectively enhanced, and the safety of a vehicle is ensured.

Description

technical field [0001] The invention belongs to the field of rail vibration and noise reduction, and mainly relates to a chute-mounted suspension rail vibration-damping fastener, which is especially suitable for the laying of new lines and the reconstruction of old lines for urban subways, light rails, intercity railways, and high-speed railway traffic. Background technique [0002] In recent years, my country's subway, light rail and other urban rail transit systems have developed rapidly, effectively alleviating the tension in urban traffic, but how to control the vibration and noise pollution generated during the operation of rail transit has become an urgent problem to be solved. The application of vibration and noise reduction fasteners is an effective treatment method. The traditional fastener system is to install one or more layers of low-rigidity elastic backing plates under the rails, the upper part is fastened by elastic strips to the rail foot, and the lower part ...

AI Technical Summary

Problems solved by technology

[0006] When the fastener structure involved in the above two patents is in operation, the rails are torsionally and vertically elastically deformed by the running of the vehicle, and produce resistance to the fastener along the laying direction of the rail, forcing the bracket to move vertically, torsion and Moving along the direction of the rail, this kind of fastener does not constrain the bracket very well, and cannot effectively control the movement of the bracket

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