DRILL Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: invention can be used for seed drilling. Proposed drill contains seed disk made in form of flat ring manufactured of elastic material reinforced by ferromagnetic material. Disk is coupled with driven shaft through cup, is embraced by belt and it adjoins bottom of cup. Port is made in belt cover. Hopper communicates with said port. Aperture is formed on bottom diametrically opposite to port. Plate adjoining the disk is hinge-mounted in aperture on bottom. Said plate can be turned downwards by peripheral end and its angle of turning can be force fixed. Electromagnetic oil is mounted on plate from below. Under action of coil, disk flexes into aperture and engages with plate forming chute and seed port along which seeds delivered by disk get for seeding gravity and centrifugal forces. Metering is provided by changing fixed angle of plate turning. EFFECT: provision of uniform feeding of seeds and prevention of seed damage. 2 cl, 2 dwg