刮板输送机链传动系统接触动力学特性分析  

Contact dynamics characteristic analysis on chain transmission system of scraper conveyer

作　　者：毛君[1] 董先瑞[1] 谢苗[1] 白雅静[1] 谢春雪[1] 

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：《工程设计学报》2015年第5期445-451,共7页Chinese Journal of Engineering Design

基　　金：辽宁省教育厅科学研究一般项目(L2012118);辽宁省教育厅创新团队资助项目(LT2013009);辽宁省煤矿液压技术与装备工程研究中心开放基金资助项目(CMHT-201206)

摘　　要：链传动系统是综采工作面刮板输送机最重要的系统.为了研究刮板输送机在运行过程中链传动系统的接触动力学特性,利用有限单元法分别建立平动链条模型、转动链条模型和链环与链轮啮合接触的模型,基于三维建模软件建立链条和链环与链轮啮合的虚拟样机模型.利用非线性有限元软件LS-DYNA分析了启动过程中链环之间接触动力学特性和正常工作过程中链环链轮啮合接触动力学特性,得出了启动过程中链环之间加速度、应力变化规律和正常工作中链环与链轮啮合过程位移、速度、应力的变化规律,为链轮传动系统瞬态动力学和传动系统关键零部件优化设计提供关键设计参数.The chain transmission system is the most important system of fully mechanized working-face scraper conveyor.In order to study the dynamic characteristics of scraper conveyor in the process of operating the chain transmission system,the finite element method was used to establish translational chain model,rotary chain model,and meshing contact model of chain and sprocket while the virtual prototype model was established by 3Dmodeling software.The contact dynamics characteristics between chain in the start working process and the meshing contact dynamics characteristics between chain and sprocket in the normal working process were analyzed by using the nonlinear finite element software LS-DYNA.The variation of acceleration between links in the start process,the stress variation,and the variation of speed,displacement and stress in the normal process of chain and sprocket meshing were obtained which provided the key design parameters for the key parts of chain wheel transmission system transient dynamics and transmission system components optimization.

关 键 词：刮板输送机 链轮 链环 有限单元法 接触动力学 

分 类 号：TD528[矿业工程—矿山机电]