Design and Tests of Transplantation-Cavitation Mechanism for Self-Propelled Tobacco Transplanter
To solve existing problems of tobacco manual transplanting such as high labor intensity,poor in-dependence of mechanized equipment and low reliability,design of transplantation-cavitation mechanism for self-propelled tobacco transplanter was optimized.ADAMS was used to simulate and analyze the trans-plantation-cavitation mechanism,and EDEM was applied to construct the simulation model of threaded burrower.Through orthogonal combination tests,significance among threaded burrower indices was ana-lyzed,and the best parameter combination was concluded as the threaded burrower diameter of 160 mm,thread number of 3,and rotation speed of 1 800 r/min.The field experiments were carried out and the rate of injury seedlings was 0.33%,the rate of qualified plant spacing was 85.67%,and the rate of leakage of transplanting was 1.33%.Transplanting holes could be watered simultaneously,and the continuous bur-rowing transplanting was realized,which could meet the agronomic requirements of modern tobacco trans-planting.