中文摘要：

针对步行式水稻插秧机的工作要求,将偏心齿轮—非圆齿轮行星轮系应用于水稻插秧机后插式分插机构的设计中,研制出偏心齿轮-非圆齿轮后插旋转式分插机构。分析了偏心齿轮—非圆齿轮行星轮系的运动学特性,建立运动学模型,并自主开发了分插机构辅助分析与优化软件,通过人机交互优化方式对该分插机构进行参数优化,完成了该分插机构的二维和三维设计,并进行了虚拟样机试验,试验结果表明：该分插机构可以形成＂海豚形＂插秧静轨迹,满足步行式水稻插秧机的工作要求。

英文摘要：

According to work requirements of walking-type rice transplanter, backward rotary transplanting mechanism with eccentric gears and non-circular gear was developed, in which planetary gear train with eccentric gears and non-circular gear were used. In this paper, the kinematic characteristics of planetary gear train with eccentric gears and non-circular gear were analyzed and kinematic models of the transplanting mechanism were established. Based on the optimization software, which was developed by the authors, parameters of the transplanting mechanism were optimized and the one which met the work requirements of walking-type rice transplanter was given by the method of man-machine conversation. Virtual prototype test was performed after finishing the 2D and 3D design of the transplanting mechanism, and the results showed that the transplanting mechanism can create static locus which looks like a ‘dolphin’ in shape and meet the work requirements of walking-type rice transplanter.