Parameters design and simulation of planting mechanism of pepper transplanter

XU Zhi-bo, YU Li-hua, LUO Zhen, ZHANG Fu-gui
(College of Mechanical Engineering, Guizhou University, Guiyang 550025, China)

Abstract: Aiming at the problems such as low planting perpendicularity,large size of tearing filmand poor stability of pepper transplanter after operation in hilly and mountainous areas, the parameter optimization design and simulation analysis of duck beak multi pole transplanter were carried out. Firstly,the three-dimensional model of multi-linkage planting mechanism of transplanter was established, on the basis of which the kinematic mathematical model of the end of the transplanter was built. According to the requirements of local pepper planting agronomy and structure constraints,the mechanism parameters were designed with MATLAB,by doing so,combination of the main parameters was extracted.The kinematic simulation of the optimized mechanism was carried out in RecurDyn,and the obtained planting trajectory and velocity,acceleration and displacement curves were analyzed. The simulation results indicate that the distance between the highest point and the lowest point of the P-point movement track at the end of the planter is 233 mm, the transplanting depth is 97.5 mm, and the maximum transverse distance of the P-point movement track at the end of the planter under the ridge surface is 8.3 mm, all of which meet the design requirements, and the planting performance is improved.
Key words: pepper transplanter; multi-linkage planting mechanism; mathematical model; parameters design; simulation analysis