刮板输送机链轮传动系统接触动力学仿真分析

建立基于MSC.ADAMS的刮板输送机链轮传动系统虚拟样机模型，分析在各种工况下的动力特性。分析得出机头与机尾的驱动力矩及其合力矩的变化规律：启动瞬间驱动力矩快速到达最大值，平稳运行过程中呈现周期性变化，为配置装机电机的功率提供参考依据；分析得出圆环链与链轮之间接触力的变化规律、接触力最大值及其对应位置，为链轮有限元分析及结构优化提供载荷参考；分析得出圆环链所受拉力的变化规律，为进行链轮传动系统瞬态动力学提供了参考。

Contact dynamics simulation analysis for sprocket transmission system of scraper conveyor

Based on virtual prototyping software MSC.ADAMS，the paper built the virtual prototyping model for sprocket transmission system of scraper conveyor，the dynamic characteristics of this system under various work conditions were simulated.The distributions and rules of driving torque and it’s resultant moment of motor at scraper head and tail are discussed，the driving torque reaches maximal quickly at the moment of launch and presents cyclical variability in the process of smooth running，which provides reference for the allocation of the motors power.The distributions and rules of contact force between chains and sprockets，the maximal contact force and it’s corresponding position are discussed，which provides reference for finite element analysis and structure optimization of sprocket.The distributions and rules of the chain tension are discussed，which provides reference for transient dynamic analysis of sprocket transmission system.