工程设计学报2025，Vol.32Issue(2)：220-231,12.
基于EDEM-ADAMS的采煤机摇臂壳体变形规律研究
Study on deformation law of rocker arm shell of shearer based on EDEM-ADAMS
摘要
Abstract
In order to analyze the root of shearer rocker arm shell failure and ensure the safe and stable operation of shearer,the influencing factors of shearer rocker arm shell deformation were analyzed,and the shell deformation law was studied.Firstly,the mechanical model of the rocker arm shell was constructed,and the load factors affecting the deformation of rocker arm shell were sorted out,including the external forces generated by coal rock on the drum and the internal loads formed by gear transmission system when the shearer was cutting.Secondly,Solidworks software was used to establish the three-dimensional model of the rocker arm,and EDEM-ADAMS software was used to build the elevation working condition model of shearer cutting 4 types of gangue coal rocks,containing aluminous rock,gray rock,limestone and siltstone,to simulate the deformation of the rocker arm shell.Finally,the shell deformation test platform was set up,and the experiment of shearer cutting silt-containing gangue coal was carried out.The simulation results showed that the mean value of drag traction resistance was less than the mean value of cutting resistance,and both were greater than the mean value of lateral force.After the shell was subjected to external loads,its deformation was complex,at the joint of the rocker arm shell and the drum planetary reducer,the deformation was large,and the risk of instability was large.The deformation of rocker arm shell at the position of gear shaft exhibited a nonlinear,approximate normal distribution with multiple peaks.The experimental results showed that the closer to the drum planetary reducer,the greater the deformation,which was highly consistent with the simulation results.The research clearly shows the deformation law of the rocker arm shell under complex loads providing a robust theoretical support for the improved design of the rocker arm shell,and is helpful to optimize the shearer design scheme,reduce the shell failure risk,and effectively improve the reliability and stability of the shearer in actual production.关键词
摇臂壳体/EDEM仿真/截割载荷/变形规律/实验测试Key words
rocker arm shell/EDEM simulation/cutting load/deformation law/experimental test分类
矿山工程引用本文复制引用
田立勇,于晓涵,于宁..基于EDEM-ADAMS的采煤机摇臂壳体变形规律研究[J].工程设计学报,2025,32(2):220-231,12.基金项目
国家自然科学基金面上项目(52174143) （52174143）
