简述了一种旋转式行星系分插机构，用于高速水稻插秧机前插式作业。分析了偏心齿轮-非圆齿轮行星系分插机构的工作机理和结构特点，建立了该机构的运动学模型。基于Visual Basic6.0开发了该分插机构辅助分析与优化软件，通过人机交互方式，优化出满足高速插秧机插秧要求的结构参数为e=3mm, R=19mm,α0=-40°,φ0=36°, S=155mm, H=180mm。A new type of rotary transplanting mechanism with planetary gears, which is used to transplant seedlings for high-performance rice transplanter, was introduced Work principle and structural feature of the mechanism were analyzed, and its kinematic models were established. Parameters optimization software based on Visual Basic 6.0 was programmed. Kinematic property was analyzed and simulated, based on the optimization method of human-computer conversation, then structural parameters of the transplanting mechanism were obtained, which could meet the demands of transplanting seedlings, such as, e=3mm,R=19mm,α0=-40°,φ0=36°, S=155mm, H=180mm. 简述了一种旋转式行星系分插机构，用于高速水稻插秧机前插式作业。分析了偏心齿轮-非圆齿轮行星系分插机构的工作机理和结构特点，建立了该机构的运动学模型。基于Visual Basic6.0开发了该分插机构辅助分析与优化软件，通过人机交互方式，优化出满足高速插秧机插秧要求的结构参数为