我厂推床翻钢机曲柄轴底座与轴承盖之间采用4根M36×320的双头螺栓联接。由于翻钢机工作时,曲柄轴底座和轴承盖受到很大的冲击负荷作用,常导致双头螺栓松动和断裂。维修人员几乎每班都得对其紧固,每周都得更换几根螺栓。而螺栓断裂后,更换又比较麻烦,因为先得取出断在底座里的那节螺栓。 I push the bed machine Crank Shaft Crank Shaft and bearing cover between the four M36 × 320 stud connection. Due to the work of turning machine, the crankshaft base and bearing cap are subject to a large impact load, often leading to stud loose and fracture. Almost every shift has to be tightened by maintenance personnel, and a few bolts have to be changed every week. After the bolt is broken, the replacement is rather troublesome because the bolt that was cut off in the base has to be taken first.