不同工况下滑行式刨煤机的动态仿真研究  

Dynamic simulation of sliding coal plow under different working conditions

作　　者：李晓豁[1] 刘霞[1] 焦丽[1] DO Trung-hieu 

机构地区：[1]辽宁工程技术大学机械工程学院,辽宁阜新123000

出　　处：《煤炭学报》2010年第7期1202-1206,共5页Journal of China Coal Society

基　　金：国家自然科学基金资助项目(59774033);中国煤炭工业协会科学技术研究指导性计划资助项目(MTKJ-08-311);辽宁省第二批科学技术计划资助项目(2008403010);辽宁省安全生产监督管理局安全生产科技发展(辽安监规划[2009]88号)

摘　　要：为研究不同工况下滑行式刨煤机的动态性能,利用拉格朗日第二类方程建立了滑行式刨煤机纵向刨削时的动力学模型,利用计算机仿真得出刨煤机在往复运动、倾斜工作面、中部槽有转角的工况下刨头速度和刨链受力变化的曲线,并对其波动情况进行了分析。结果表明:刨煤机在上述复杂工况下,刨头速度和刨链松、紧边拉力变化很大,产生的波动将加剧刨头振动,使刨煤机的可靠性和使用寿命降低。In order to study dynamic characteristics of a sliding coal plow under different working conditions,a dynamic model of a sliding coal plow planning longitudinally was established with the Lagrange Equation（Ⅱ）.Changing curves of plow head velocity and plow chain force were obtained by means of computer simulation in different conditions,such as reciprocating motion,inclined coal face and corner of chute,and these fluctuations were analyzed.The results show that the velocity of plow head and tension of loose side and tight side change largely under these compli-cated working conditions,these fluctuations of the force will aggravate the plow head vibration,which can lead to reduce reliability and service life.

关 键 词：滑行式刨煤机 动态仿真 往复运动 倾斜工作面 中部槽转角 

分 类 号：TD421.62[矿业工程—矿山机电]