摘要
采掘岩体的力学性能复杂,不易于实现滚筒的精确建模,以现有模型建立的滚筒设计方法无法有效保证滚筒实际装煤性能,导致采煤机螺旋滚筒实际平均装煤性能不足60%,所以基于工作面现场数据对滚筒的设计方法进行研究具有重要意义。本次选取工作面现场装煤性能80%以上的500套滚筒参数作为研究依据,首次提出以叶片螺距S和γ(叶片外径与筒体外径之比)建立双参数设计法,采用曲线拟合法获得叶片螺距S的最佳取值范围和γ的计算公式,建立了采煤机螺旋滚筒双参数设计方法。以两种方法分别设计了神东补连塔煤矿4500滚筒的左、右滚筒,在工作面现场进行了对比试验,测得采用双参数设计法的滚筒装煤性能约为85%,现有设计方法装煤性能约为70%。结果表明:以工作面现场数据为基础建立的双参数设计方法能更有效保证滚筒实际装煤性能。
The mechanical properties of rock mining are complicated and not easy to get a precise modeling of the drum.The drum design method established by the existing model cannot effectively ensure the actual loading performance of the drum,which lead the actual average loading performance of shearer is less than 60%. The design method of roller working surface based on the field data is of great significance to research. In this research,500 sets of rollers with site loading performance of more than 80% are selected,we put forward the pitch s and γ( blade pitch and diameter and cylinder diameter ratio) using two parameter design method,using curve fitting optimum range of blade pitch and legally obtained the calculation formula to establish the design method of double parameters shearer drum. Two kinds of methods are used to design Shandong Bulianta Coal Mine 4500 cylinder of the left and right roller,the contrast test was made in the face of the scene,the drum loading performance measured by dual parameter design method is about 85%,the existing design method of loading performance is about 70%. The results show that the two parameter design method based on the field data can effectively guarantee the actual coal loading performance of the drum.
作者
李海虹
杨忠印
辛红宝
刘宁
LI Hai-hong;YANG Zhong-yin;XIN Hong-bao;LIU Ning(School of Mechanical Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;Datong Phillips Mining Machinery Manufacturing Co., Ltd. Research Institute, Datong Coal Mine Mechanical and Electrical Eauinment Comoany, Dalong 037000 China)
出处
《煤炭工程》
北大核心
2018年第4期119-122,共4页
Coal Engineering
基金
国家青年科学基金"高速数控机床电主轴的行波法动力学建模及主动控制研究"(51541501)
关键词
采煤机
螺旋滚筒
装煤性能
工作面
shearer
screw drum
coal loading performance
working face