液压挖掘机齿尖挖掘力的间接检测方法  

Indirect measurement method for digging force of hydraulic excavator

作　　者：孙天宇 张平[1] 张森 佟昆宏 SUN Tianyu;ZHANG Ping;ZHANG Sen;TONG Kunhong(School of Mechanical and Electrical Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China)

机构地区：[1]西安建筑科技大学机电工程学院,陕西西安710055

出　　处：《Journal of Measurement Science and Instrumentation》2024年第1期1-8,共8页测试科学与仪器（英文版）

基　　金：supported by Key Project of Industrial Science and Technology of Shaanxi Province(No.2015GGY068)。

摘　　要：液压挖掘机的挖掘力是反映挖掘机工作状态的一个重要参数。基于挖掘机工作装置的力学分析,建立了反应连杆机构截面应力与铲斗挖掘力之间关系的数学模型,并提出了一种新的挖掘力测量方法。通过有限元模拟分析,得到了连杆机构截面应力在不同挖掘力的仿真结果,与理论计算的误差约为8%。仿真结果验证了该测量方法的可行性。The digging force of hydraulic excavator is an important parameter reflecting the working conditions of the excavator.In this study,by analysis of the working mechanism of the excavator,a mathematical model reflecting the relationship between the cross-section stress of the linkage mechanism and the digging force of the bucket was established,and a new method for measuring the digging force was proposed.Furthermore,the cross-section stress values of the linkage mechanism under different digging forces were obtained by finite element simulation,and the error between simulation results and theoretical results was about 8%,which verifies the feasibility of the proposed measurement method for the digging force of hydraulic excavator.

关 键 词：液压挖掘机 应力检测 挖掘力 有限元仿真 

分 类 号：TU621[建筑科学—建筑技术科学] TH137[机械工程—机械制造及自动化]