摘要
煤矿巷道施工支护喷涂机械臂采用极坐标形式,其基座固定于履带式底盘上,可实现摆动、伸缩、行走运动,满足煤矿巷道不同截面的喷涂作业。由于喷涂作业机械臂不停伸缩摆动,受周期性运动载荷的影响,基座在使用中存在安全隐患。利用 Inventor 运动仿真模块和应力分析模块对机械臂基座进行了有限元分析,得到机械臂在极端工况下的应力、位移和安全系数,并根据结果对比分析进行了基座的结构优化。优化后的基座结构相对之前结构质量减轻,装配和拆装方便,在试验中运行稳定可靠,完全满足工况要求。
The spraying manipulator used for construction and supporting of colliery roadway adopts polar coordinate form,and its base is fixed onto the crawler-type chassis.It realizes the swinging,telescopic and walking motion,so as to meet the requirements of spraying operation on various cross-section of colliery roadway.Since the spraying manipulator kept swinging and telescopic motion during operation,its base was of hidden danger in service under the influence of periodic motion load.Inventor motion simulation module and stress analysis module were applied to conduct FEA on the base of the manipulator,and the stress,displacement and safety coefficient of the manipulator in extreme operation mode were obtained.And then,the base was optimized in structure according to comparison results.The optimized base reduced in mass,was easy to assemble and disassemble,and operated stably and reliably in test.It totally met the requirements of operation mode.
作者
王新昌
董辉辉
娄安东
尹国辉
李向阳
WANG Xinchang;DONG Huihui;LOU Andong;YIN Guohui;LI Xiangyang(CITIC Heavy Industries Co.,Ltd.,Luoyang 471039,Henan,China;Nanjing Kegong Coal Science&Technology Research Co.,Ltd.,Nanjing 210000,Jiangsu,China)
出处
《矿山机械》
2021年第10期50-54,共5页
Mining & Processing Equipment
基金
中国煤炭科工集团有限公司科技创新创业资金专项资助(2018-2-ZD002)。
