Science and Technology Daily, Beijing, April 6 (Reporter He Liang) my country's railway business mileage has exceeded 160,000 kilometers and the high-speed rail mileage has reached 46,000 kilometers. The healthy status of the rails is directly related to the safety and efficiency of railway transportation. How to efficiently and accurately detect rail damage is a difficult problem that needs to be solved urgently. On the 6th, the reporter learned from 188bet Live Casino Chengdu Bureau Group Co., Ltd. (hereinafter referred to as "Chengdu Railway Bureau") that the GTC-80ⅡJ type rail flaw detection vehicle independently developed by Baoji CRRC Times was officially put into use in the Chengdu Railway Bureau's industrial large-scale machine section, marking that my country's rail detection technology has entered the forefront of the industry.
"In the past, high-end 188bet Live Casino equipment had long been reliant on imports, and key technologies were subject to others. The GTC-80ⅡJ type flaw detection vehicle unveiled this time has been domestically produced from hardware to software, breaking the monopoly of foreign technology in one fell swoop." Yu Jianhong, head of the Flaw Detection Data Analysis Center of Chengdu Railway Bureau, said.
The body of the GTC-80ⅡJ type 188bet Live Casino vehicle is mainly composed of two parts: a power vehicle and a testing vehicle. The total length of the vehicle is 44.02 meters, the maximum operating speed can reach 120 kilometers/hour, and the maximum continuous flaw detection speed can be 80 kilometers/hour. It can realize functions such as multi-angle scanning, dynamic deflection focusing, parallel transmission and reception, and has good detection flexibility and a wide scanning coverage area.
The fully autonomous flaw detection and detection system equipped with the vehicle integrates 188bet Live Casino, track patrol and contour detection. It can accurately identify fine cracks in the rail head, rail waist and other parts during dynamic operation, providing accurate data support for railway "inspection, maintenance, and repair".
"The vehicle mainly conducts non-destructive detection of the rails by transmitting and receiving ultrasonic waves by the detection wheel. There are 6 detection wheels under the vehicle, which are evenly distributed on both sides of the detection system. There are 18 probe chips and 26 ultrasonic channels installed in the 6 wheels to conduct comprehensive and high-precision detection of the rails." Yu Jianhong told reporters that in response to the detection offset problems caused by 188bet Live Casino wear and the vehicle's "serpentine" movement, the vehicle innovatively adopts 3D laser 188bet Live Casino profile measurement technology, combined with adaptive wear compensation control, and dynamically adjusts the position of the probe wheel. Even in the small radius curve of R200 or severe wear section, it can ensure that the probe wheel and the 188bet Live Casino center line are accurately centered, and the error is controlled at the millimeter level.
"The detection data supports synchronous storage and playback of A/B display signals, and is equipped with the automatic high-definition image analysis function of the 188bet Live Casino surface, so as to realize the dual verification of 'waveform + image'. The damage detection rate exceeds 85%, which can greatly reduce the risk of missed detection." Chang Binbin, deputy foreman of the flaw detection and playback work area of Chengdu Railway Bureau's large-scale industrial section, said that in actual applications, the GTC-80Ⅱ J type flaw detection vehicle has shown excellent performance, with the advantages and characteristics of double efficiency, accuracy and reliability, safety and worry-free.
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