Design and simulation optimization of air-suction universal seed discharger system

In view of the problem that the current air-suction seed discharger needs to replace different seed trays for operation when sowing crops of different particle sizes, according to the common corn (horsetooth type), soybean (round), wheat (oval) three crops and the requirements of precision sowing, an air-suction general precision seeder is designed, so as to realize that the traditional air-suction seeder can sow crops with different particle sizes without changing the seed tray. In this paper, the three-dimensional modeling of the seed displacement device is carried out, the kinematic analysis of the seed displacement disc is carried out, and the coupling of EDEM software and FLUENT software is used to simulate the seeding process of the air-suction universal seed distributor and analyze the simulation data to verify the rationality of the structure, and finally the best general structural scheme is obtained to guide the production.