Abstract: A new intermittent drive transfer mechanism of planetary gear train with eccentric circle and incomplete non-circular gear is designed on the basis of the analysis of recent advances. In one work period, non-uniform intermittent rotation of planet gear relative to planet carrier is achieved. Work principle and structural feature of the mechanism are introduced, kinematics model is established. The software of computer-aided analysis for this intermittent drive transfer mechanism of planetary gear train is developed. By human-computer conversation, structural parameters are carried out, which can meet the demand of driving. Based on these parameters, design and test of this intermittent drive transfer mechanism of planetary gear train are carried out. The mechanism has been successfully used in creation design of vegetable plug seedling pick-up mechanism, and experimented with transplanting seedling. The correct and feasible of theoretical model of planetary gear train mechanism are verified.

Key words: Eccentric circular gear, Incomplete non-circular gear, Non-uniform and intermittent drive, Planetary gear train mechanism