SPOOL-TYPE SEEDING UNIT FOR SMALL-SEEDED CROPS, INCLUDING AMARANTH Russian patent published in 2003 - IPC

FIELD: agricultural engineering. SUBSTANCE: seeding unit has casing, coupling, grooved spool and small-toothed washer. Coupling and spool are mounted on drive shaft. Small-toothed profile of washer is defined by cells, each having front face oriented radially with respect to washer axis of rotation, and rear face inclined at an angle to radius of subsequent front face. Front and rear faces are joined along arc of circle. Side faces of cells are inclined to washer end surfaces. Washer is mounted on spool pivot. Washer is connected to spool by means of pin, whose geometric axis of symmetry is extending in parallel with drive shaft axis. EFFECT: improved uniformity of distribution of small seeds along ridge and reduced consumption of valuable seeds. 4 dwg