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液压挖掘机的回转是靠液压马达驱动的,无论是直接驱动还是通过减速机构驱动,在这里统称回转驱动机构为回转马达。所谓回转马达松动,即指其与回转平台接合处螺栓松动、结合不牢的现象。 正常工况下,回转马达驱动回转平台和工作装置无外界阻力时,被驱动部分的重量只相当于挖掘机重量的一半左右,所以回转马达的工作一般不存在超负荷现象。然而,回转马达并非只起驱动回转平台转动的作用,还在以下两种情况下起
The rotation of the hydraulic excavator is driven by a hydraulic motor. Whether it is a direct drive or a speed reduction mechanism, the rotary drive mechanism is collectively referred to herein as a rotary motor. The looseness of the so-called slewing motor means that the bolts loose at the joint with the slewing platform, and the looseness of the bolts is not achieved. Under normal conditions, when the rotary motor drives the rotary platform and the working device without external resistance, the weight of the driven portion is only about half of the weight of the excavator, so the work of the rotary motor generally does not have an overload phenomenon. However, the rotary motor does not only act to drive the rotation of the rotary table, but also in the following two cases.