Method and device for flaw detection of train wheelset

Abstract

The invention provides a method and a device for flaw detection of a train wheel set. The method comprises the following steps: extracting data graph information of the train wheel set from a flaw detection data after packaging; analyzing the data graph information, thereby acquiring a reflecting wave with a reflecting wave amplitude value of the train wheel set not less than a first threshold and taking the reflecting wave as an initial defect waveform; and taking the initial defect waveform acquired by a normally working flaw detection part screened out from the initial defect waveform as a target defect waveform, thereby removing the initial defect waveform with ultrahigh reflecting wave amplitude value of the train wheel set caused by the abnormal condition of the flaw detection part, and ensuring that the position of the train wheel set corresponding to the target defect waveform is the real flaw position based on the incidence relation between the reflecting wave and the train wheel set information. According to the method provided by the invention, the analysis for the online high-speed collected and packaged flaw detection data is realized and the flaw position of the train wheel set is accurately judged, so that the safety and reliability of the train running are ensured.

Description

technical field [0001] The invention relates to the technical field of wheelset flaw detection and detection, and more particularly to a train wheelset flaw detection detection method and device. Background technique [0002] In recent years, with the rapid development of my country's economy, the speed of railway trains has gradually increased, and the impact on the train wheels has also increased. Whether the train wheels can work normally is a major hidden danger to the safety of railway transportation. 1. Therefore, the safety inspection of train wheel sets has become an important part of railway inspection. [0003] At present, railway departments often use non-destructive testing technology to realize wheelset detection, mainly to apply this non-destructive testing technology to wheelset flaw detection to solve the problem of real-time detection of wheelset defects. As the most widely used non-destructive testing technology today, the non-destructive testing method tra...

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Problems solved by technology

[0004] However, the applicant found that the existing train wheel set flaw detection method usually uses an ultrasonic flaw detection device to complete the detection of the train when the train needs to be overhauled, which has a certain lag and cannot timely and accurately determine the train wheel set. These defects affect the safety and reliability of train operation

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