关键词: 机械工程；液压挖掘机；多功能铲斗；工作装置；仿真

Abstract: Taking the TX210C hydraulic excavator as the research object, a multi-functional bucket structure design that could carry out front shovel, backhoe and clamping without changing the bucket was proposed. The virtual prototype model was established by Pro-E and ADAMS software, and on this basis, the structure design, kinematics and dynamics simulation analysis of the working device were carried out. Finally, the variation curve of the force at each hinge point and at each hydraulic cylinder were obtained. The results show that the difference between the theoretical size and actual size of the maximum digging radius, maximum digging depth and maximum digging height of the excavator is very small, and the force change is consistent with the actual working conditions, which can realize the conversion between the front and back shovel of the multifunctional bucket and the clamping action of the material.

Key words: mechanical engineering; hydraulic excavator; multifunctional bucket; working device; simulation