Rail flaw detection dynamic test device

Abstract

The invention discloses a dynamic test device for rail flaw detection. The dynamic test device comprises a supporting frame, a sliding platform, a rail test block and an auxiliary device, wherein the supporting frame is used for carrying a flaw detection device; the flaw detection device is arranged at the upper part of the supporting frame; the sliding platform is movably arranged at the bottom of the supporting frame in the length direction of the supporting frame, and is located under the flaw detection device; the rail test block is arranged on the sliding platform, is located under the flaw detection device, can move opposite to the flaw detection device in the length direction of the supporting frame under the driving of the sliding platform, and is used for providing various damage simulations of a rail; the auxiliary device comprises a coupling water spraying device that provides coupling water for a contact surface between the rail test block and a detection wheel of the flaw detection device. According to the invention, the dynamic test device for rail flaw detection can dynamically provide an all-around damage test environment for the rail flaw detection work, and is simple to operate, flexible in arrangement, small in environmental impact, and strong in adaptability.

Description

technical field [0001] The invention relates to the technical field of flaw detection, in particular to a rail flaw detection dynamic test device applied in the field of railway engineering. Background technique [0002] Ultrasonic flaw detection is the most widely used flaw detection method in the field of detection technology. The development and testing of non-destructive testing equipment are inseparable from the object to be tested. The main function of the ultrasonic rail flaw detection operation is to detect the damage of the rail itself, such as: nuclear damage at the rail head, vertical splitting, bolt hole cracks at the rail waist, crescent-shaped damage at the bottom of the rail, and various welding, fatigue, etc. resulting damage, etc. Therefore, how to provide these damage detection objects in a centralized, complete and comprehensive manner is an important part of ultrasonic nondestructive testing. There are many mold manufacturers in China that provide a var...

AI Technical Summary

Problems solved by technology

Its disadvantages are: it needs a dedicated line, there are requirements for the length of the line, it is inconvenient to replace the rail, and it does not use the integration in the laboratory

Its disadvantages are: the circular rail is quite different from the actual rail, and it is easily constrained by conditions.

Since the circular rail cannot be designed to be very large, it is impossible to have such a small curve radius rail in actual use. This damage setting method has a large gap with the actual damaged object detected, and it is not conducive to the installation of detection equipment.

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