Study on a Bowl-based Mechanism for Transplanting Potted Strawberry Seedlings

To improve the efficiency of fetching and transplanting seedlings for the mechanization of strawberry planting, an integrated transplanting mechanism was designed with protruding, fetching and planting performance to achieve rapid fetching and pushing bowl movements. According to the working principle of the slewing mechanism, a kinematics model and the optimization goal were established, respectively. Based on visual auxiliary analysis software, optimal parameters were obtained. A three-dimensional model was established to obtain a simulation trajectory by means of a virtual simulation design analysis. Three-dimensional printing technology was used to manufacture the test prototype, and the actual working trajectories of the test prototype were extracted using high-speed photography technology, which verified the consistency of the actual trajectory with the theoretical and simulated trajectories. A prototype transplanting experiment was performed with the success rate of seedling extraction of 91.2％ and excellent planting rate of 82.8％, which met the requirements for integrated strawberry harvesting, planting and transplanting. The experimental results verified the correctness and feasibility of the design of integrated transplanting mechanism.