SKID-SHAPED PLOUGHSHARE Russian patent published in 2021 - 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 ploughshareconsists of cast housing. Latter comprises knife blade 1, jaws 2 wherein axle 3 is installed, on which seed drill 4 is hingedly fixed with curved working surface, and receiving funnel 5 fulfilling the function of seeds distributor. Funnel 5 has curvilinear surface made as brachistochrone with guide grooves of curvilinear shape in cross section, connected with seed tube 6. Body and knife edge 1 are made solid and the angle of solution of cheeks 1 of the ploughshare is formed by curvilinear generating lines. At that, tangent line drawn to curvilinear generatrix makes angle with plies axial line ϕ, which is 1-2 degrees less than steel friction angle on soil.

EFFECT: invention will make it possible to reduce pulling resistance of the ploughshare and to reduce fuel consumption when sowing small-seeded crops.

1 cl, 2 dwg