Analysis and Optimization of Air Flow Field Suction Tray for Air-Suction Vibrating Tray Seed Metering Device

To analyze the effect of air chamber height and size on the airflow field distribution within the chamber and suction holes of the air suction vibrating tray seed metering device. The airflow field of air chambers with different height and size was simulated and analyzed using ANSYS 2021 R2/Fluent software. The results from numerical simulations single-factor experiments indicated that both the height and size of the air chamber significantly affected the distribution of the airflow field, as evidenced by the pressure and velocity distribution. The distribution of airflow field became more uniform with the increase of chamber height. However, the air velocity at the seed suction holes first decreased before stabilizing. Furthermore, with a fixed overall size of the air chamber, fewer partitions within the chamber lead to a more uniform distribution of the internal airflow field. This research provides theoretical basis for the optimization of the air chamber structure in air suction vibrating tray seed metering devices and for the development of related equipment.