Abstract: The software Pro/E was adopted to create a three-dimensional physical model of the virtual prototype of a single bucket backhoe hydraulic excavator work device. The model was transferred into ADAMS to build a virtual prototype of the work device. A work cycle of excavator work device, as well as the tangential force, the normal force and the gravitational force of the materials was successfully simulated by using the function step. With the simulation, load-time curves of three hinge points whose articulated stresses are more complex were obtained. The research has provided the basis for the design of the excavator devices.

Key words: Hydraulic excavator, ADAMS, Virtual prototyping, Dynamics simulation 

摘要： 采用Pro/E软件建立了单斗反铲液压挖掘机工作装置的三维实体模型。将此模型导入ADAMS软件中，建立了挖掘机工作装置的虚拟样机。运用step函数模拟了挖掘机工作装置的一个工作循环，及它在该循环中受到的切向挖掘力、法向挖掘力和物料重力。通过仿真，得到了受力较复杂的3个铰接点所受载荷随时间变化的曲线，为挖掘机机构的设计提供了依据。

关键词: 液压挖掘机, ADAMS, 虚拟样机, 动力学仿真