Steel rail knocking device

Abstract

The invention discloses a steel rail knocking device, and relates to the field of rail traffic. The steel rail knocking device comprises a knocking head, a flexible beam, a transmission rod, a fixed shaft and a drive module. The knocking head is arranged at a first end of the flexible beam. A second end of the flexible beam is connected with a first end of the transmission rod. The fixed shaft is connected with the middle of the transmission rod in a rotating mode. A second end of the transmission rod is connected with the drive module and capable of rotating around the fixed shaft under the drive of the drive module. According to the steel rail knocking device, the flexible beam is arranged to drive the knocking head to knock a steel rail, the knocking action time of the knocking head and the surface of the steel rail can be effectively shortened, a high-quality steel rail pulse response signal is generated, and the accuracy of detection for looseness of steel rail fastening pieces in follow-up work is improved.

Description

technical field [0001] The invention relates to the technical field of rail transportation, in particular to a rail striking device. Background technique [0002] During the high-speed running of the train, the severe vibration of the rail can easily lead to loose bolts or fatigue fracture of the fasteners, and the loosening of a fastener will often induce the loosening of the surrounding fasteners, which will aggravate the dynamic irregularity of the track. And then cause serious train derailment hidden danger. Until now, whether abroad or at home, relevant preventive measures rely entirely on manual patrols and regular tightening. Among them, regular full tightness is completely a last resort expedient measure, while the safety of the track during normal hours is completely dependent on the manual patrol method that is prone to missed inspections. [0003] In order to automatically, efficiently and accurately detect all loose fasteners along the line, a method for locati...

AI Technical Summary

Problems solved by technology

Although the existing percussion device can also make the rail vibrate, but the percussion head and the surface of the rail have a long interaction time, and the free attenuation period of the vibration after the rail is knocked once is extremely short. Therefore, if the action time is too long, the rail will be affected. The quality of the vibration signal cannot achieve the purpose of pulse-type knocking on the rail, which is not conducive to the collection of vibration signals and seriously affects the positioning accuracy of loose fasteners.

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