Steel rail flaw detection vehicle anti-freezing system and rail flaw detection vehicle

Abstract

The invention relates to a steel rail flaw detection vehicle anti-freezing system and a steel rail flaw detection vehicle. In the detection process, coupling liquid in a coupling water tank is sprayed between a belt and a probe and between the belt and a steel rail through a spraying assembly, so that a first coupling layer and a second coupling layer are formed correspondingly, so that ultrasonic waves of the probe are better transmitted to the steel rail, and therefore, flaw detection of the steel rail is realized. Due to the fact that the steel rail flaw detection vehicle anti-freezing system is provided with a heater, the coupling liquid can be heated through the heater before being sprayed, and the formed first coupling layer and the formed second coupling layer both have a certain temperature. Heat supply equipment can provide fluid (such as hot water, hot air and the like) with the preset temperature for the first coupling layer, so that the fluid with the preset temperature can be continuously provided for the inner side of the belt through the heat supply equipment in the detection process, stable coupling between the equipment is ensured, and normal operation of the flaw detection vehicle in a cold environment is ensured.

Description

technical field [0001] The invention relates to the technical field of rail flaw detection, in particular to an antifreeze system of a rail flaw detection vehicle and a rail flaw detection vehicle. Background technique [0002] There are two types of ultrasonic probes currently used for rail flaw detection: wheel probes and sliding shoe probes. Among them, the wheel probe is composed of a probe bracket and a probe wheel outer membrane. The probe bracket is installed on the wheel shaft to fix the ultrasonic probe. The probe wheel outer membrane is made of sound-transparent resin material and is used to wrap the sound-transparent coupling fluid of the entire inner cavity. During flaw detection, the outer film of the detection wheel rolls forward with the movement of the vehicle, while the ultrasonic probe in it does not move, so as to keep the direction of ultrasonic emission and reception unchanged. The sliding shoe probe is composed of an ultrasonic probe and a pry board. M...

AI Technical Summary

Problems solved by technology

However, when the traditional rail flaw detection vehicle is inspected, it is easily affected by the external air temperature, which causes the coupling fluid in the belt and the probe carrier to freeze, which makes the flaw detection vehicle unable to operate in a cold environment (such as an extremely cold environment of -40°C). run the job normally

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