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WK-20型电动挖掘机是白云铁矿的主要采掘设备,其回转时上下半体是单独运动的,依靠回转上下环轨及辊轮装置构成类似轴承系统,使上部平台实现任意角度的自由转动。在此过程中,回转下环轨承担着整个电动挖掘机上部的所有质量。虽然环轨材质为高合金钢锻造,但上部质量大、工作受力复杂,磨损在所难免。咨询厂家得知,传统更换方法是将整个上部回转平台移除后再更换下环轨,过程繁琐且耗时。因此,下环轨一旦按传统方法停产拆修,将
WK-20 electric excavator is the main mining equipment of the Baiyun Iron Mine. The upper and lower halves of the WK-20 electric excavator move independently. The upper and lower rails and the roller device form a similar bearing system, enabling the upper platform to freely rotate at any angle . In the process, the revolving lower rail carries all the mass of the entire electric excavator. Although the ring rail material is high alloy steel forging, but the upper mass, work force complex, wear is inevitable. Consulting manufacturers that the traditional method of replacement is to remove the entire upper slewing platform and then replace the next ring, the process cumbersome and time-consuming. Therefore, the next ring once cut down according to the traditional method of dismantling, will