Kinematic analysis of a rice transplanting mechanism with eccentric planetary gear trains

Although eccentric gear trains have been found useful in agricultural machinery such as rice transplanting machines, lack of a theoretic study on kinematics and dynamics of it has led to some difficulty to further improve the performances of the system. The main contribution of this paper is to develop the so-called kinematic parametric equation (kinematic model) for an eccentric planetary gear train without introducing the assumptions which are mainly related to the eccentricity of the system. A comparison of our kinematic model with the measured results achieved by Tatsuya Konishi et al. is also provided.