液压单斗挖掘机反铲挖掘时,对其工作机构与土壤相互作用进行了多次理论与试验的研究并规定了一系列的基本测量方法。由于它与很多因素有关,使得挖掘过程十分复杂,因此,在研究它的物理现象的基础上要进行更深入细致地研究。为了确定在两种工作制度下单位挖掘阻力和铲斗切削边上的挖掘力,用批量产品O—4121型挖掘机进行了实际试验。该 Hydraulic single-bucket excavator backhoe excavation, the working mechanism and soil interaction conducted many theoretical and experimental studies and provides a series of basic measurement methods. Because of its many factors, making the mining process is very complicated, therefore, in the study of its physical phenomena based on a more in-depth study. In order to determine the unit excavation resistance and the digging force on the bucket cutting edge under the two working systems, the actual test was carried out with the mass production O-4121 excavator. This