Flaw detection device for wheel set bearing of train
A flaw detection device and a technology for bearings, applied in measuring devices, mechanical bearing testing, instruments, etc., can solve the problems of inability to perform accurate detection, inability to detect wheel bearings better, and high false detection rate
Pending Publication Date: 2018-04-20
胡军
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[0004] There are certain defects in these two methods, namely: 1. The false detection rate of manual detection is high, and accurate detection cannot be carried out; However, for the wheel set bearings with deep damage in the later stage, it cannot be better detected.
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[0024] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings. Several embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the present invention will be thorough and complete.
[0025] It should be noted that when an element is referred to as being “fixed on” another element, it may be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "u...
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The invention discloses a flaw detection device for a wheel set bearing of a train, and the device is characterized in that the device comprises an electret microphone, a control circuit board, a GSMmodule, a storage battery, a metal aluminum box, a first hex head screw, a second hex head screw, a charging port, a hinge, a front casing clamp, and a rear casing clamp, a first hex head nut, and a second hex head nut. The electret microphone is used for the analysis and clutter filtering of a sound signal generated by a fault wheel set bearing, extracting the feature frequency and carrying out the waveform analysis. The sound signal generated by the fault wheel set bearing is compared with the sound signal generated by the normal wheel set bearing at the amplitude, waveform factor, wave peakfactor, probability density and kurtosis coefficient. When the wavelength of the collected sound signal is apparently different from the wavelength of the sound signal generated by the normal wheel set bearing, it indicates that the wheel set bearing has an abnormality, and the fault information is transmitted to a segment, corresponding to the fault wheel set bearing, of the train through a GSMmodule at this moment, thereby achieving the better detection of the wheel set bearing with the severer flaws.
Description
technical field [0001] The invention relates to automatic detection and wireless communication equipment, in particular to a flaw detection device for train wheel set bearings. Background technique [0002] The wheel set bearings of trains generally work in very harsh environments. During the running of the train, the wheel set bearings are the most prone to failure parts, and the wheel set bearings have an irreplaceable position among all the components of the train. Due to long-term heavy-load driving, high-speed rotating wheel-set bearings are prone to failures such as surface peeling, fatigue, and cracks, which seriously affect the safe running of trains. The realization of intelligent automatic monitoring of high-speed trains in China is of great significance to the development of my country's railway transportation and high-speed trains. Fault diagnosis of train wheel set bearings can reduce train operation accidents and ensure the safety of life and property, which ha...
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IPC IPC(8): G01M13/04
CPCG01M13/045
Inventor 胡军胡成
Owner 胡军