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1.支腿纠偏原因目前大型港口及轮船制造厂广泛采用大跨度门式起重机。为了避免起重机轨道存在高差或不平行问题,造成其主梁承受附加载荷,导致其变形。跨度大于40m的门式起重机一侧支腿与主梁的采用螺栓连接(即刚性连接),另一侧采用铰接(即柔性连接)。由于两侧车轮磨损量、运行阻力、车轮打滑量的不同,该类起重机在运行时,易于出现两侧支腿“一前一后”的
1. Leg correction reasons At present, large-scale port and ship manufacturers widely used gantry crane. In order to avoid the elevation difference or non-parallel problem of the crane track, the main beam of the crane is subjected to additional load, which leads to deformation. A gantry crane with a span of more than 40 m is bolted (ie, rigidly connected) to one side of the main girder and hinged (ie, flexibly connected) to the other side. Due to the amount of wheel wear on both sides, running resistance, different amount of wheel slip, this type of crane in operation, prone to both sides of the legs “one after the other ”