A01C7/14

High-speed precision seed metering device through kinetic-energy-type rotating and throwing and seed metering control method thereof

A high-speed precision seed metering device through kinetic-energy-type rotating and throwing and a seed metering control method thereof. Two motors are used to cooperatively control and achieve seed feeding and kinetic-energy-type rotating and throwing seed metering. A seed feeding motor rotates a seed feeding disc to be cooperated with an air suction device to suck seeds, and a throwing motor rotates a seed spoon to fetch seeds. After taking seeds, the seed spoon is accelerated by the throwing motor to provide initial kinetic energy for the seeds. After rotating to a throwing point, the seed spoon is decelerated by the throwing motor to throw the seeds. The throwing speed and the throwing angle of the seeds can be precisely controlled by adjusting the position of the throwing point and the rotational speed of the throwing motor.