Kinematics And Dynamic Analysis And Parameter Optimism Study On Separating Planting Mechanism With Eccentric Gears

The object of present study is to analyze the kinetic characteristic of the eccentric sprocket separating planting mechanism with planetary gears of high performance rice transplanter, to construct mathematic model and kinetic optimism model and figure out the optimal kinetic parameters, and then to analyze the dynamic performance and study the dynamic mathematic model. The following is the main content and results of this research:1) After deeply analyzing the restriction factors of rice transplanter mechanization developing under the present situation of China, the eccentric sprocket separating planting mechanism with planetary gears was considered to be quite useful for double cropping rice planting in South area of China, the research merit of which is valuable. Meanwhile, combining present research situation of the eccentric sprocket separating planting mechanism with planetary gears in China, a few problems need to be resolved was put forward.2) Program chart was constructed on the foundation of the kinetic characteristic of the eccentric sprocket, which was analyzed in detail. At the same time, the map of transmission ratio with the varying angle was exported by using VB software. And the relationship between K value and the eccentric sprocket transmission ratio was especially discussed.3) On the basis of kinematics analysis, mathematic model of which was conducted to analyze the kinematics characteristic of an appointed eccentric sprocket separating planting mechanism by using VB 6.0 assisting analysis software.4) According to the nine request of the kinematics of the eccentric sprocket separating planting mechanism in rice transplanting agronomics, kinematics optimizing model was established to build human-machine integration system. By using this system, a group of preferable parameters was obtained for orthogonal analysis. Then linear correlation analysis and the analysis of each factor at vary level affecting relative object were performed for the data got from previous orthogonal analysis with SAS program, form which a group idea kinematics parameter was obtained.5) Mathematic model was conducted on the basis of dynamic analysis of the eccentric sprocket separating planting mechanism.6) Forwarding research program and method was put forward.