GRINDING DEVICE FOR SEEDS Russian patent published in 2019 - IPC A01C1/06 

FIELD: agriculture.

SUBSTANCE: device for grinding seeds is proposed, containing a container mounted from two or more screw grinding drums joined into a single technological chain, the inner surface of which is covered with a layer of rubber, rigidly fixed one above the other in a closed one on all sides, with transitional covers, covered from the inside with a layer of rubber, a box elastically installed on the base with an exciter, a hopper, a discharge tray. Screw grinding drums are made of convex and concave shapes, installed alternately under each other. Convex-shaped helical grinding drums are made around the perimeter of three or more rolled-up and variable-width strips of curved curvilinear shape connected in series with a ribbed surface, rolled in a vertical plane in the longitudinal direction, curved along helical lines in the transverse direction and bent along notches, with bevelled walls in the transverse-longitudinal direction arranged in pairs at an angle to one another on both sides of the strips on the convex mandrel with the formation along the perimeter of the screw grinding drum directed towards each other broken screw lines and broken screw surfaces with the same variable pitch along the length of the grinding drum. Screw-shaped grinding drums of a concave shape are made of ribbed surfaces of variable width strips of a concave curvilinear shape, rolled up in a vertical plane in the longitudinal direction, bent along helical lines in the transverse direction and bent along notches, with beveled walls in the transverse-longitudinal direction, located at an angle to one another on both sides of the strips on a concave mandrel with the formation around the perimeter of the screw grinding drum of a concave shape directed towards each other broken screw lines and broken screw surfaces with variable pitch.

EFFECT: invention enables increased efficiency.

1 cl, 15 dwg