This paper presents the essential structures and working principle of a brand new roller stripping -type cotton picker .It concerns the modeling of three-dimensional picker unit using three-dimensional design software;and primary kinematics simulation of the picker under ADAMS-based virtual prototype environment and acquiring the motion relation-ship of axial-direction cotton beaters of roller .The simulated conclusion indicates that the polygonal effect in roller chain drive makes bats produce the vibration and strike on touched cotton plants .Moreover , the increase of the rotation speed of stripping roller is observably capable of obtaining an acceleration rise on beaters .The result of simulation provides a certain foundation and reference for theory analysis .%阐述了一种新型刷辊式采棉机的基本结构及工作原理，运用三维设计软件建立了采摘装置三维实体模型，并利用ADAMS 虚拟样机分析软件对采摘部件进行了初步的运动学仿真，获得了刷棉辊作用元件———纵向刷板的运动规律。仿真结果表明：传动系统中滚子链传动的多边形效应，使纵向刷板在采摘物料时具有一定的振动和冲击力；此外，提高刷棉辊的旋转速度，能够显著地提高纵向刷板的加速度。仿真分析的结果为刷辊式采棉机工作机理的研究，以及刷棉辊结构特征、配置参数的研究，提供了一定的理论分析依据和参考。
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