Based on the practical situations of current construction equipment maintenance, the fault of master clutch, hydraulic torque converter, driving bridge, steering clutch and brake are discussed.
结合当前工程机械维修工作的实际情况，对主离合器、液力变矩器、驱动桥、转向离合器和转向制动器等部位的故障现象进行了深入的探讨。
According to the special requires of bridge crane, it adopts the vector control theory, has functions of regulating speed smoothly, energy feed back, sequence brake etc.
本文介绍了一个控制桥式起重机的变频调速系统，它根据桥吊的特殊性能要求，采用矢量控制方式，具备平滑调速、能量回馈、顺序制动等功能。
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