摘要
为提高截割效率、降低截齿磨损率,建立了钻进和横切2种工况下截齿截割岩石的模型,对2种工况下的截齿进行有限元分析,并以截齿受力、截割功率、截割比能耗为目标函数,实现了对现有截齿形状、安装角度等方面的优化设计,并以此为基础设计了一款新截割头。通过新旧截割头的对比试验研究,可知优化后的截割头无论是在高速或者低速工况下,其截割效率均高于优化前,且新截割头截齿磨损率小于旧截割头。
In order to improve cutting efficiency and reduce cutting wear rates, the pick cutting rock model under drilling and crosscutting is built. Finite element analysis of picks under these two conditions is conducted. The pick force, cutting power and special energy consummation for cutting are chosen as objective function. The optimization design of cutter shapes and installation angle is finished, Then a new cutting head is designed on the base of these. Through comparative study between new cutting head and old cutting head, these conclusions can be obtained. The cutting efficiency of new cutting head is higher than the old cutting head whether in the high speed or low speed conditions, and cutter wear rates of new cutting head is less than the old.
出处
《煤矿机械》
2015年第3期69-71,共3页
Coal Mine Machinery
基金
国家自然科学基金面上项目(75104452)
辽宁省教育厅科研基金项目(L2014519)
沈阳工程学院博士启动基金项目(LGBS-1406)
关键词
截齿
钻进
横切
仿真
优化
pick
drilling
crosscutting
simulation
optimization
作者简介
李祥松（1979-），辽宁沈阳人，讲师，博士，2010年东北大学获得博士学位，主要从事煤矿机械的试验研究，电子信箱：xiangsong_li@126．com．
