The Application Of Large Scale Rail Flaw Detection Vehicle In The Shuohuang Railway

Heavy haul railway has a large volume,the characteristics of major axis and high traffic density,the impact on the line than the general line of serious,exacerbated by the rail fatigue damage development,especially to the rail head injury,the nuclear more jaw crack,rail waist and rail base cracks and weld damage prominent.Non destructive testing technology can not damage the workpiece under the premise of the workpiece to achieve rapid detection,accurate positioning defects,the most commonly used nondestructive testing methods are ultrasonic testing.The introduction and development of large-scale rail inspection car based on the ultrasonic detection technology,improve work efficiency and save labor,is the development direction of the rail detection,but also the existence of nuclear injury and jaw crack detection rate is not high,the small radius curve of bad and broken wheel leakage on such a phenomenon,technical problems for efficient inspection car high quality work to be solved.This article from the inspection vehicle detection principle,using the technical characteristics and other aspects,through theoretical calculation,static test and dynamic calibration methods,a case study on factors affecting the detection quality of vehicle detection,contrast detection ability and carry out inspection vehicle inspection instrument,study on the relationship between the state and the effect on the line,the results show that the detection speed and parameters are the main factors affecting the detection quality of vehicle detection,and puts forward in the detection speed,parameters and the specific measures for improvement of medium,the method of determining the transducer quality evaluation,received good results.Research on characteristics of phased array technology combing belt wheel inspection vehicle,and by comparison with the existing inspection car wheel,laid the foundation for the further research of the new inspection vehicle inspection car,improved technology industry,improve the inspection vehicle use level to provide the reference.