A method of rail damage detection
A detection method, rail technology, applied in the direction of optical testing flaws/defects, using sound waves/ultrasonic waves/infrasonic waves to analyze solids, etc., which can solve the problems of insufficient detection of defects and low detection efficiency
Active Publication Date: 2017-06-09
浙江贝尔新轨道装备研究院有限公司
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However, the detection efficiency of these methods is low, and the defects detected are not comprehensive enough.
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[0015] Hereinafter, the embodiments of the rail damage detection cart of the present invention will be described in detail with reference to the accompanying drawings.
[0016] The operation of high-speed railways and heavy-haul railways has strict requirements on the reliability of railway infrastructure. As a part of infrastructure inspection work, rail flaw detection plays a vital role in the safety of railway operations.
[0017] In the past, most of the online rail fractures were caused by internal defects. Internal defects usually occur in the waist and head of the rail. With the excessive wear and fatigue of the rail, the internal defects continue to develop and expand, eventually leading to rail breakage accidents.
[0018] Now, with the introduction of advanced production technologies, such as the introduction of high-carbon steel and clean steel production processes, the probability of internal rail defects has been greatly reduced. Instead, rail surface defects lead to ra...
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The invention relates to a steel rail damage detecting method. The method comprises the following steps: 1) a steel rail damage detecting cart is provided, and the steel rail damage detecting cart is moved on a steel rail to detect the damage degree of the steel rail. The method is characterized in that the detecting cart comprises a pushing handle, moving wheels, a vertical detecting frame, an image detecting device, an ultrasonic detecting device and an ARM 11 processor. The moving wheels are used for moving the detecting cart on the steel rail. The image detecting device and the ultrasonic detecting device are arranged on the vertical detecting frame in an up-to-down arranging mode. The image processing is carried out on a collected image of the steel rail by the image detecting device. The ultrasonic detecting device is used for conducting ultrasonic detection on the steel rail. The ARM11 processor is connected with the image detecting device and the ultrasonic detecting device. Based on an image processed result and an ultrasonic detected result, the damage degree of the steel rail can be confirmed. 2) The cart is used to conduct detection.
Description
Technical field [0001] The invention relates to the field of railway maintenance, in particular to a method for detecting damage to a steel rail. Background technique [0002] In recent years, rail transportation in various countries has been developing rapidly, and the operating mileage is also growing rapidly. The development of rail transportation has provided great convenience to freight and passenger transportation, and improved the speed and capacity of transportation. With the increase in service time of rails and the development of railways towards high speed and heavy load, rail damage detection technology has attracted much attention. The surface defects of the rail will accelerate the wear of the wheels, and the cracks on the surface of the rail will also cause the rail to break after repeated rolling. These all increase the possibility of derailment and seriously affect the driving safety. If the detection and treatment of damaged rails are neglected, serious traffic...
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IPC IPC(8): G01N29/04G01N21/88
Inventor 方津
Owner 浙江贝尔新轨道装备研究院有限公司