Vibration reduction fastener system

Abstract

The invention belongs to the technical field of urban rail transit, and particularly relates to a vibration reduction fastener system which comprises an upper iron base plate, a lower bottom plate, a middle vibration reduction pad, an under-rail vibration reduction pad, an under-plate vibration reduction pad, a middle vibration isolation plate, an insulating coupling plate and a self-locking limiting structure. The insulating coupling plate is laid on the ground, and the lower bottom plate is mounted above the insulating coupling plate; a self-locking buckle is arranged and embedded into the mounting groove, so that the lower bottom plate and the upper iron base plate are limited, it is guaranteed that the lower bottom plate, the upper iron base plate and components in the gap between the lower bottom plate and the upper iron base plate are kept stable, and the phenomenon that the vibration reduction fastener moves and is staggered under the vibration effect of passing of a train is avoided; and through the series connection effect of the middle anti-vibration pad, the under-rail anti-vibration pad and the under-plate anti-vibration pad, the overall rigidity of the fastener is effectively reduced, meanwhile, excessive deformation of the anti-vibration pads is prevented, and therefore it is guaranteed that the fastener system can normally play a vibration reduction role.

Description

technical field [0001] The invention belongs to the technical field of urban rail transit, in particular to a vibration-damping fastener system. Background technique [0002] In recent years, domestic urban rail transit systems such as subways and light rails have developed rapidly, effectively alleviating the tension in urban traffic. In this series of construction, the fastener system is indispensable. The fastener is the connection between the rail and the sleeper. The connection with the rail is realized by buckling the rail with elastic strips, and the connection with the sleeper is realized by fixing with anchor bolts. In the field of urban rail transit, double-layer damping fasteners are the most commonly used medium vibration damping. As society pays more and more attention to vibration reduction and noise reduction, it is difficult for conventional double-layer vibration reduction fasteners to meet the increasingly high vibration and noise reduction requirements of...

AI Technical Summary

Problems solved by technology

[0005] In order to make up for the deficiencies of the existing technology and solve the problems of high production cost and troublesome installation and maintenance in the existing vibration-damping fastener system; when the bolt support structure of the multi-layer vibration-damping fastener is used, because it is a non-integrated design, the stability is relatively high Poor, and the installation height is too high, which is not conducive to the later adjustment of the line

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