SOWING DEVICE FOR PRECISION AGRICULTURE Russian patent published in 2020 - IPC A01C7/12 

FIELD: agricultural engineering.

SUBSTANCE: invention can be used for differentiated supply of seeds to a pneumatic system of sowing units in a precision farming system. Sowing apparatus includes a sowing coil installed in the body with grooves, with a drive and a device for regulation of seeds sowing rate by movement of the shutter. Latter closes the coil on the side of the loading window of the housing along the coil grooves by means of an actuator. Actuator is made in the form of stepped electric motor controlled via onboard computer. To adjust the seeding rate by changing the volume of the seeding coil grooves, the latter is made in the form of a drum made of a set of plates arranged in circumferential direction, inside which there is a separating ring and a rotor. Latter is made from two parts of different diameter. Part of larger diameter rotor, which is equal to drum outer diameter, has longitudinal slots for drum plates. Part of smaller diameter of rotor is made with diameter for ID of separating ring. Springs of the sowing coil are formed with plates of the drum, a separating ring and surface of a large-diameter rotor part. Rotor is installed in drum with possibility of axial movement.

EFFECT: invention will provide for differentiated supply of seeds into pneumatic system of sowing units operating in on-line mode, and timely blocking supply of seeds when seeding working elements come out of soil.

1 cl, 10 dwg