SEED DISTRIBUTOR OF PRECISION ROW DRILL AND ROW DRILL COMPRISING SUCH SEED DISTRIBUTOR Russian patent published in 2016 - IPC A01C7/04 

FIELD: agriculture.

SUBSTANCE: group of inventions comprises: a seed distributor (1) of precision pneumatic row drill (3), a sowing unit, a row drill, and an upgrade kit for the seed distributor of precision pneumatic row drill. The seed distributor (1) of the precision pneumatic row drill (3) relates to the type comprising a sowing disc (16) which is rotated by the transmission shaft (20) driven by a motor, a housing (10) with a fixed part (11), in which a shaft (20) is mounted, and a part (12) which is made movable relative to the fixed part (11) and can be closed against it, a chamber (15) for collecting the seeds in the fixed part (11), a pneumatic suction chamber (17) in the movable part (12). And the sowing disc (16) is located between the parts (11, 12) and has opposed surfaces bounding the chambers (15, 17), at that the sowing disc (16) has a ring of selector holes (23) and a seal (24) located on the movable part (12) and made with the ability of sliding contact with the facing surface (16a) of the disc (16), a thrust bearing element (26) of the sowing disc (16), mounted with the ability of rotation in the movable part (12). This group of inventions enables to reduce or eliminate completely the seal wear caused by the sliding contact with the selecting disc of seeds.

EFFECT: thrust bearing element is a self-centring, which enables to open and close easily the movable part on the fixed part of the distributor housing.

11 cl, 2 dwg