High-speed preventive grinding technology re-enters the urban rail market
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Previously, China Railway Materials Group Co., Ltd. cooperated with the German company Fussuo to establish Beijing China Railway Fuslow Technology Co., Ltd. The company has actively expanded the urban rail transit market this year and has been well received by the owners in the seasonal maintenance of the Harbin subway.
"Long-term contact between wheel and rail will form a wave on the surface of the rail. Not only will the driving noise be high, but it will damage the rails if it is not removed in time, causing an accident." Jiang Haibo, head of the Harbin Metro Operation Department, said.
In the past, rail grinding operations were generally about 10 kilometers per hour, and they only worked at night, and the maintenance efficiency was low. The high-speed preventive grinding wheel can grind the rail at a speed of 25 to 60 kilometers per hour when equipped with an external tractor. All systems can be remotely controlled by the operator riding in the tractor through mobile equipment, and the passive grinding wheel is pulled and dragged on the rail while spinning and finishing.
The grinding car comes with a high-power vacuum system, which can absorb the debris and dust generated during the grinding in time, without cleaning the road sections and tunnels after grinding. The precise electronic system fully records all parameters during driving. It is reported that the rapid grinding technology has been widely used in the maintenance of railway and urban rail transit in Germany, Denmark, Switzerland, the Netherlands and other countries.