A vibration damping fastener system

Abstract

The invention belongs to the technical field of urban rail transit, and specifically relates to a vibration-damping fastener system, which includes an upper iron backing plate, a lower bottom plate, a middle vibration-damping pad, an under-rail vibration-damping pad, a lower-board vibration-damping pad, a middle plate, an insulating coupling plate and a self-locking limit structure; the insulating coupling plate is laid on the ground, and a lower base plate is installed above the insulating coupling plate; the present invention sets a self-locking buckle and makes the self-locking buckle embedded in the installation groove, Make the lower base plate and the upper iron backing plate be limited, ensure the stability of the lower base plate and the upper iron backing plate and the parts in the gap between them, and avoid the phenomenon of movement and dislocation of the vibration-damping fasteners under the vibration of the train passing by; and through The tandem effect of the middle damping pad, the under-rail damping pad and the under-slab damping pad effectively reduces the overall stiffness of the fastener while preventing excessive deformation of the damping pad, thus ensuring the normal performance of the fastener system for vibration reduction effect.

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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