The application of the differentials of LHD units both in and outside China is generally reviewd.The working principles and characteristics of ordinary bevel differential and jaw free wheel antiskid self-locking differential are described.Application cases of ordinary bevel,jaw free wheel antiskid self-locking and mixed differentials in China's metal mines are cited.%介绍了国内外铲运机差速器的应用概况,论述了普通伞齿轮差速器、牙嵌式自由轮防滑自锁差速器的工作原理与特性,列举了普通伞齿轮、牙嵌式自由轮防滑自锁、混合型三种差速器铲运机在国内金属矿山应用实例。
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