PNEUMATIC SOWER FOR PRECISION SEED DRILL Russian patent published in 2023 - IPC A01C7/04 

FIELD: agricultural engineering.

SUBSTANCE: invention relates to agricultural engineering, in particular to devices for individual sowing. The pneumatic sowing apparatus of a precision seeder includes a housing on which a hopper with a damper for adjusting the supply of seeds is rigidly mounted, inside which there is an agitator, a hollow shaft with cutouts connected to the air duct, on which a sowing drum with holes for capturing seeds and its mechanism is rotatably mounted drive, an ejector of excess seeds mounted on the body, and a device for cleaning the holes for the seeds. The hollow shaft with cutouts is rigidly fixed to the housing, on which the dispenser is also rotatably mounted. The outer and inner sides of the sowing drum are made with grooves and holes for regulating the seeds and guiding the device for cleaning the holes for the seeds, respectively. The sowing drum is hermetically sealed with a cover that can be removed and is rigidly mounted on a hollow shaft with cutouts, together with its drive mechanism. In addition, a limiter is rigidly fixed on the hollow shaft with cutouts, and a device for cleaning the holes for seeds is fixed in the lower part of the limiter. The excess seed ejector is made in the form of brushes for removing excess seeds, which are mounted on the body with the ability to move in different directions.

EFFECT: invention will make it possible to carry out more accurate sowing of seeds without gaps and doubles with a reduction in their damage.

1 cl, 3 dwg