机械制造与自动化2024，Vol.53Issue(3)：37-40,4.DOI:10.19344/j.cnki.issn1671-5276.2024.03.007
矿用挖掘式装载机工作机构疲劳寿命分析
Fatigue Life Analysis of Working Mechanism for Mining Backhoe Loader-bucket
摘要
Abstract
In order to figure out the fatigue life of the working mechanism of mining backhoe loader-bucket,the calculation method of the random excavating resistance of bucket was analyzed and determined,and Matlab was applied to simulate the random excavating resistance.With Pro/E,the three-dimensional model of the working mechanism was established,and its finite element model was created by Workbench.The simulated excavating resistance was imported into ncode to analyze the stress and fatigue life of the bucket,jib and boom.The results show that the variable range of the working mechanism is 0.313x 10-2-0.028 m,and the stress range is 705-3.85×108 Pa.The minimum service life is located at the connecting parts between the bucket and rod,about 7.58x 106times.The research conclusion provides a basis for the parameter design and optimization of the machine.关键词
挖掘式装载机/疲劳/有限元/应力Key words
backhoe loader-bucket/fatigue/finite element/stress分类
矿业与冶金引用本文复制引用
何洋,李晓豁..矿用挖掘式装载机工作机构疲劳寿命分析[J].机械制造与自动化,2024,53(3):37-40,4.基金项目
国家自然科学基金资助项目(59774033) （59774033）
辽宁工业大学博士科研启动基金资助项目(XB2021004) （XB2021004）
