掘进机截割部输出端行星盘可靠性优化设计  

Reliability Optimization Design of Star Disk at the Output End of Roadheader Cutting Section

作　　者：李明昊 赵丽娟[2,3] 乔捷 Li Minghao;Zhao Lijuan;Qiao Jie(School of Mechanical Engineering,Shenyang Ligong University,Liaoning Shenyang 110159;College of Mechanical Engineering,Liaoning Technical University,Liaoning Fuxin 123000;Liaoning Provincial Key Laboratory of Large-Scale Mining Equipment,Liaoning Fuxin 123000)

机构地区：[1]沈阳理工大学机械工程学院,辽宁沈阳110159 [2]辽宁工程技术大学机械工程学院,辽宁阜新123000 [3]辽宁省大型工矿装备重点实验室,辽宁阜新123000

出　　处：《山东煤炭科技》2022年第5期213-216,共4页Shandong Coal Science and Technology

基　　金：国家自然科学基金项目(51674134),辽宁省博士科研启动基金计划项目(2020-BS-153);辽宁省教育厅青年科技人才“育苗”项目(LG202029);辽宁省教育厅基础项目(LJ2019JL024)资助。

摘　　要：行星盘对掘进机整机的可靠性有着重要的影响。基于刚柔耦合虚拟样机技术,得到行星盘的最大等效应力值及位置,基于对数正态分布得到了行星盘的疲劳寿命可靠度。构建行星盘的综合优化设计函数,利用遗传算法求得最优解。结果表明:优化后最大等效应力由120.7665 MPa降低到98.5389 MPa,疲劳寿命由1.878e5提高到2.641e5,可靠度由0.9672提高到0.9869。Planetary disk has an important influence on the reliability of roadheader.Based on rigid-flexible coupling virtual prototyping technology,the maximum equivalent stress value and position of the planetary disk were obtained,and the fatigue life reliability of the planetary disk was obtained based on lognormal distribution.The comprehensive optimization design function of planetary disk was constructed and the optimal solution was obtained by genetic algorithm.The results show that the maximum equivalent stress decreases from 120.7665 MPa to 98.5389 MPa after optimization,fatigue life increased from 1.878e5 to 2.641e5,the reliability is improved from 0.9672 to 0.9869.

关 键 词：掘进机 截割部 行星传动 优化设计 

分 类 号：TD421.5[矿业工程—矿山机电]