SKID-SHAPED PLOUGHSHARE Russian patent published in 2020 - IPC A01C7/20 

FIELD: agriculture; machine building.

SUBSTANCE: invention relates to agricultural machine building, in particular, to sowers of sowing machines for sowing of seeds of agricultural crops. Skid-shaped ploughshare consists of body, made solid-cast with tine point knife. In axis of the shovel there is an axis on which the scraper bar of seeds with curvilinear working surface is hingedly fixed. Also, the ploughshare has a receiving funnel, which functions as a seed distributor. Receiving funnel connected to the seed conduit has a curvilinear surface made as brachistochrone with guiding grooves of a curvilinear shape in the cross section. Angle of solution of the cheeks of the ploughshare is formed by deltoids and by 4-6 degrees below the double angle of friction of steel along the soil. Radius of deltoid rounding with ploughshare cheek makes 1/2 width of the ploughshare.

EFFECT: invention will make it possible to reduce traction resistance of skid-shaped ploughshare and, as a result, to reduce fuel consumption during sowing of small-seeded crops.

1 cl, 2 dwg