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支腿是保证轮式挖掘机进行稳定挖掘作业的基本构件,支腿液压缸的好坏直接影响整机的正常工作。在某型轮式挖掘机的使用过程中发现,支腿液压缸在承受额定载荷时,活塞杆出现自行收缩现象(闭锁不好)。
The outrigger is the basic component that ensures the stable excavation operation of the wheel excavator. The quality of the outrigger hydraulic cylinder directly affects the normal operation of the complete machine. During the use of a wheeled excavator, it was found that when the leg cylinder suffered a rated load, the piston rod self-contracted (locking was not good).