摘要
带式装载机具有连续输送、运量大的优点,在煤矿的转载输送中具有广泛的应用,且运行可靠,便于实现自动化转载输送。由于煤炭的应用中输送距离较长,造成带式装载机的工作长度较长,从而对支撑的机架结构提出较高的要求,且机架结构的承载变化较大,对其使用寿命造成一定的影响。为提高机架结构的使用性能,采用ANSYS Workbench有限元分析的方式对装载机机架结构进行分析优化,建立机架的结构及分析模型,并通过不同拉索吊点位置的分析,确定最佳的吊点位置,此时机架受到的应力作用最小。经过分析,机架的最大应力及位移变形量均较小,满足系统的使用需求,进一步采用截面积较小的杆件进行机架的结构优化,从而降低机架的重量,提高带式转载机的使用可靠性及寿命。
Belt loader has the advantages of continuous conveying and large capacity,which is widely used in the transferring and conveying of coal mines,and the operation is reliable,which is convenient to realise automatic transferring and conveying.Due to the long conveying distance in the application of coal,the working length of the belt loader is long,which puts forward high requirements on the supporting frame structure,and the bearing change of the frame structure is large,which has a certain impact on its service life.In order to improve the performance of the rack structure,ANSYS Workbench finite element analysis is used to analyse and optimise the rack structure of the loader,establish the structural and analytical model of the rack,and determine the optimal location of the lifting point through the analysis of different cable lifting point positions,at which time the rack is subjected to the smallest stress.After analysis,the maximum stress and displacement deformation of the rack are small,to meet the use of the system requirements,and further use of smaller cross-sectional area of the rod for the structural optimisation of the rack,so as to reduce the weight of the rack,and to improve the use of the reliability and life of the belt transfer machine.
作者
任家苇
Ren Jiawei(Mechanical and Electrical Department of Meiyukou Mine,Jinneng Holding Coal Group,Datong Shanxi 037003,China)
出处
《机械管理开发》
2024年第7期168-169,172,共3页
Mechanical Management and Development
关键词
带式转载机
机架
仿真分析
应力变形
结构优化
belt transfer machine
rack
simulation analysis
stress deformation
structural optimisation
