Anti-slip upper locking combined type rail shock absorber

Abstract

An anti-slip-out upper locking combined type rail shock absorber comprises a base, an elastic base plate, a rail bearing plate, a plurality of locking rings and a plurality of buckling rings. The basecomprises a base body and a plurality of locking stand columns arranged in a protruding mode. A plurality of locking clamps are arranged at the top ends of the locking stand columns in the circumferential direction. The elastic base plate is provided with a plurality of mounting through holes corresponding to the locking stand columns respectively. The rail bearing plate is provided with a plurality of column penetrating through holes corresponding to the locking stand columns, and a plurality of lock seats are arranged at the bottom end of each column penetrating through hole in the circumferential direction at intervals. A plurality of lock tongues are arranged on the hole wall of a central through hole of each locking ring at intervals in the circumferential direction. The rail bearingplate, the elastic base plate and the base are sequentially stacked from top to bottom, and the locking stand columns sequentially penetrate through the mounting through holes and the column penetrating through holes. The locking rings extend into the corresponding column penetrating through holes, and the lock tongues of the locking rings are clamped into gaps between the lock seats and the lockclamps and downwards extrude the lock seats, so that the rail bearing plate downwards presses the elastic base plate. The track shock absorber has high locking capacity, and meanwhile, the mounting height of a track spike bolt can be reduced.

Description

technical field [0001] The invention relates to rail traffic vibration reduction and noise reduction technology. Background technique [0002] In recent years, vibration damping fasteners have been widely used in the field of urban rail transit vibration reduction, and have effectively improved the surrounding vibration and noise environment of rail transit. As the core component of the vibration-absorbing fastener system, the rail shock absorber can be divided into an overall vulcanized type and a physical assembly type according to different connection methods. Among them, the physically assembled track damper mainly physically connects the upper and lower iron backing plates and the elastic backing plate with nonlinear design double-sided protrusions through a specific locking structure, realizing the integration of the product. The single maintenance cost of the track damper is reduced as the elastic backing plates can be replaced independently. However, during the lon...

AI Technical Summary

Problems solved by technology

However, during the long-term use of the rail shock absorber, due to fatigue load, aging and wear, the height of the elastic backing plate (especially the height of the double-sided protrusions of the elastic backing plate) will drop sharply, resulting in the locking force Reduced, even there will be a gap between the elastic backing plate and the upper and lower iron backing plates, thereby reducing the binding force in the horizontal direction, causing the elastic backing plate to slide out, making the track shock absorber in an abnormal working state, affecting the safety of the train

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