EBZ-135掘进机截割头结构优化设计 .pdfVIP

学兔兔 煤 炭 工 程 201 1年第9期 EBZ一135掘进机截割头结构优化设计 刘英林 (太原理工大学机械工程学院，山西太原 030024) 摘 要：掘进机是巷道掘进的主要设备，文章就EBZ—B5型掘进机存在截割头振动较大、 截齿受力不均的问题，用ANSYS／LS—DYNA10．0软件建立了截割头和煤岩的数值模拟模型。通 过仿真得到了截割头和各截齿的受力。再根据受力情况，反复调整优化了截齿截线间距，使得截 割头和各截齿所受力的差异系数趋于平衡。同时，差异系数的减小，使掘进机的振动得到了有效 控制，截割性能明显提高。 关键词：掘进机；结构优化；截割头；截齿；截线间距 中图分类号：TIM21．5 文献标识码：B 文章编号：1671—0959(2011)09-0012-03 Optimized Design of Cutting Head Structure for EBZ—-1 35 Mechanized Roadheader LIU Ying一1jn (School of Mechanical Engineering，Taiyuan University of Technology，Taiyuan 030024，China) Abstract：The roadheader is a main equipment of the mine roadway heading．The paper had an introduction on the problems of the high vibration on the cutting head and the uneven load on the cutting picks existed in the EBZ一135 madheader．The ANSYS／LS—DYNA10．0 software was applied to establish the numerical simulation models of the cutting head and the coal and rock．The loads of the cutting head and each pick were obtained from the simulation． According to the loading conditions，the cutting line space of the picks was repeatedly adjusted and optimized and thus the different cuemcients of the loads on the cutting head and each pick would be in balance．Meanwhile．the reduction of the different coefficient could effectively control the vibration of the roadheader and could improve the cutting performances obviously． Keywords：roadheader；structure optimization；cutting head；pick；cutting line spacing 切削角、转角、叶片高度与厚度和头体的长度、直径等。 1 概 述