动载荷是导致挖掘机零件破坏的主要原因。动载荷系数是挖掘机设计中的一个重要参数。因此,挖掘机的动载荷研究是十分重要的。单斗挖掘机的工作循环系由挖掘土壤、重斗回转并卸载、空斗回转并回到原掌子面几个过程组成。在整个工作循环中,动载荷都是存在的,且因受载情况的不同而变化。通过试验可以看出,单斗挖掘机在工作过程中动载荷的 Dynamic load is the main cause of damage to excavator parts. The dynamic load factor is an important parameter in the design of the excavator. Therefore, it is very important to study the dynamic load of the excavator. The working cycle of a single-bucket excavator is composed of several processes of excavating soil, turning and unloading the bucket, returning the empty bucket and returning to the original face. Throughout the work cycle, dynamic loads are present and vary by loading conditions. Through experiments, it can be seen that the single-bucket excavator is dynamically loaded during operation.