Fertiliser and seed spreading machine - has variable speed motor drives connected to conveyor metering device

摘要

The agricultural spreading machine is especially for fertiliser or seed. It comprises a supply container with a conveyor-metering device and a thrower disc for broadcasting. The drive of the conveyor-metering device and the drive of the thrower disc are both speed-controllable electric motors. The speeds of the motors are identified in a central control unit from the valves given by hand and sensors and are automatically held at a required valve.