Barrier-free turnout passing wheel type probe bracket applied to portable steel rail flaw detecting vehicle

Abstract

The invention discloses a barrier-free turnout passing wheel type probe bracket applied to a portable steel rail flaw detecting vehicle. The bracket comprises a pair of under frames, a pair of travelling wheels, a wheel type probe, a pair of probe fixing plates, two pairs of sliding poles, a pair of springs and a plough, wherein the pair of under frames is arranged parallel to the direction of a steel rail at an interval; one pair of parallel sliding poles is fixedly arranged between the under frames vertical to the under frames; the pair of travelling wheels is sleeved on corresponding sliding poles through sleeves respectively; the pair of probe fixing plates is arranged between the under frames parallel to the under frames; the two ends of the probe fixing plates are connected with corresponding travelling wheels respectively; the two ends of the wheel type probe are fixed on corresponding probe fixing plates respectively; the pair of springs are sleeved on the sliding poles on flange sides of the travelling wheels respectively and are positioned in a compression state; the plough is fixed on the travelling wheels; the length direction of the plough is parallel to the steel rail; and the front end and the rear end of the plough are extended out of the travelling wheels. The invention has the advantages that: by the probe bracket capable of passing a turnout through own capacity without manual operation under the guiding action of the plough, detection efficiency is greatly improved.

Description

technical field [0001] The invention relates to a wheeled probe bracket applied to a portable rail flaw detection vehicle for barrier-free crossing, and belongs to the technical field of rail flaw detection vehicles. Background technique [0002] At present, ultrasonic wheel probes are widely used in rail flaw detection, but a basic requirement for wheel probes is that the wheel probe must always be in the middle of the rail. Since the rail gauge often changes, if the wheel probe is simply fixed on the rail flaw detection vehicle, the wheel probe will deviate from the center line of the rail during the operation of the rail flaw detection vehicle. A device that can automatically adjust the wheel probe during the operation of the rail flaw detection vehicle, and always keep it on the center line of the rail. Considering that the rail ultrasonic flaw detection vehicle is a portable flaw detection equipment powered by batteries, the device should not be too heavy, and auxiliar...

AI Technical Summary

Problems solved by technology

When crossing a turnout, a shift fork is used, and the bracket is manually pushed in the direction opposite to the spring thrust, so as to avoid the push of the spring from pushing the traveling wheel to another rail, so as to pass the turnout smoothly. This method requires manual operation and is very inconvenient to use

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