SHARE Russian patent published in 1998 - IPC

FIELD: agricultural engineering, in particular, shares for subsurface spreading drill. SUBSTANCE: share has replaceable A-hoe, hollow seed guiding pole mounted on A-hoe and rear strip, which are defining closed spreading chamber. Passive seed distributor is mounted within spreading chamber. Impeller-type activator is positioned in rear part of seed guiding pole above A-hoe surface perpendicular to direction of advancement of share. Activator is made in the form of shaft with eight blades whose working ends are inclined from horizontal plane to side surface of seed guiding pole. Impeller-type activator is driven by chain transmission from shaft of supporting and covering roller. Linear speed of blade working ends exceeds progressive speed of supporting and covering roller by 1.1-1.4 times. Surface of supporting and covering roller is provided with ground-engaging devices for reducing slippage of roller. Supporting and covering roller is attached to seed guiding pole for providing even seeding depth. EFFECT: increased efficiency by stabilized operation of share at low seeding depth and embedding of seeds at uniform depth. 3 cl, 4 dwg