钻机车的分动箱一轴后端的花键常被磨损或变形，无法实现动力的正常传递，因此必须进行维修。
In practice, the splines in rear of first axle of transfer case are often worn out or deformed, failing to finish the normal transmission of power, which should be maintenance.
箱体类主要部件（立轴箱、分动箱、卷扬机等）材质采用压力铸造高强度铝基合金替换原有普通钢材；
Box main components (vertical axle box, transfer case, hoist, etc. ) adopts the pressure casting of high strength aluminum alloy to replace the original ordinary steel;
主要产品有：船用齿轮箱、船用辅机、液压离合器、液压离合分动箱、液粘调速离合器、减速机、真空泵等。
Main products: vessel gear case, hydraulic pressure clutch, hydraulic pressure double and branch driver, timing clutch, reducer, vacuum pump etc.
主要产品有：船用齿轮箱、船用辅机、液压离合器、液压离合分动箱、液粘调速离合器、减速机、真空泵等。
Main products: vessel gear case, hydraulic pressure clutch, hydraulic pressure double and branch driver, timing clutch, reducer, vacuum pump etc.
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