新型装载机工作装置受力及有限元分析

Force Analysis and Finite Element Analysis of New Loader Working Equipment

以新式的八连杆工作装置的装载机为研究对象,建立力学模型,利用有限元方法对其动臂进行性能分析。取其偏载工况为例,计算出动臂在极限偏载情况下各个铰接点的受力情况,通过有限元分析得出动臂的应力分布云图及变形图,并找出动臂的危险点和应力集中区域,在结构设计和加工工艺中予以重视,为改进设计提供依据,对装载机工作装置的设计有一定的指导意义。

In this paper,a new mechanical model was established to study a new loader of 8-bar linkage working equipment,and the performance analysis of its work arm was done based on the finite element method.With the example of partial load condition,the force on each joint of the arm in case of limit partial load is calculated.Besides,the stress contours and the deformation contours of the arm,as well as the danger points and the maximum stress sections of the arm,are made clear through finite element analysis,which can call more attention to structural design and process of this equipment.This paper provides a basis for design modification in the future,which is of certain significance for the design of the working equipment on the loader.