PNEUMATIC SEEDING UNIT Russian patent published in 2005 - IPC

FIELD: agricultural engineering, in particular, equipment for precise sowing of seeds.

SUBSTANCE: seeding unit has case, seed and pressure chambers, vertical seeding disk with dosing members having through apertures, excessive pressure channel, and intake device. Adjustment mechanism for adjusting flow-through section is mounted within inlet aperture of vertical pipe of intake device. Inlet aperture is arranged on circle of rotation of centers of dosing members, in horizontal plane extending through axis of rotation of seeding disk, on the side diametrically opposed to inlet window. Pipe is spring-loaded to seeding unit surface. Layer is placed between seeding disk and cover and provided with protrusion arranged at site where pipe inlet aperture is positioned. Identical protrusion is provided in case cover.

EFFECT: increased quality of single-seed feeding of seeds and increased rotational velocity of seeding disk.

3 dwg