摘要
液压挖掘机的工作环境恶劣,工作装置动臂结构作为主要的受载部件,其结构合理性决定了挖掘机的各项工作性能。根据发动机最大输出动力进行逆向推算,设计出最大挖掘力287 kN的大型挖掘机工作装置,并利用ANSYS软件对挖掘机工作装置动臂的两种典型工况进行有限元分析。获得了大型挖掘机工作装置动臂主体结构的应力特点、变形情况以及最大应力的大小和位置,为避免动臂应力集中、强化动臂关键部位以及动臂结构优化等提供重要的参考依据。
The working environment of the hydraulic excavator is harsh;the working device is the main load-bearing component, and its structural rationality determines the performance of the excavator. Based on the reverse calculation of the maximum output power of the engine, a large excavator working device with the maximum digging force of 287kN is designed, and the finite element analysis of two typical working conditions of the arm of the excavator working device is carried out by using the ANSYS software. The stress characteristics, deformation and the size and position of the maximum stress of the main structure of the working device boom of large excavator are obtained, which provides important reference for avoiding the stress concentration of the boom, strengthening the key parts of the boom and optimizing the boom structure.
作者
刘旋
万一品
周宇杰
梁艳彬
贾洁
LIU Xuan;WAN Yi-pin;ZHOU Yu-jie;LIANG Yan-bin;JIA Jie(Key Laboratory of Road Construction Technology and Equipment,Ministry of Education,Chang′an University,Xi′an Shanxi 710064,China)
出处
《机械研究与应用》
2022年第6期15-17,共3页
Mechanical Research & Application
基金
陕西省自然科学基础研究计划青年项目:异种钢多层强度失配焊接接头的疲劳损伤演化机理研究(编号:2021JQ-283)
陕西省自然科学基础研究计划青年项目:摊铺机熨平板耦合振动机理及能量迁移规律研究(编号:2022JQ-572)。
关键词
挖掘机
动臂
有限元分析
结构优化
excavator
boom
finite element analysis
structural optimization
