GRAIN CLEANING MACHINE Russian patent published in 2022 - IPC B07B1/50 

FIELD: agricultural machinery.

SUBSTANCE: invention relates to agricultural machinery, in particular, to grain cleaning machines with brush cleaning of sieves. The grain cleaning machine comprises a frame 1, sieve mills 2 with sieves, installed movably inside the frame 1 at an angle to the horizon, brush frames 10 with an apparatus 17 for pressing the brushes to the sieves 12, installed movably on the guides 24 of the sieve mills, a crank and rod mechanism communicating plane-parallel oscillations to the sieve mills. The brushes are therein installed on the brush frames 10 at a pitch equal to or less than the oscillation span of the sieve mill. The brush frames 10 are connected with the frame 1 of the grain cleaning machine by means of levers connected with the frame 1 of the grain cleaning machine and the brush frames 10 movably by means of hinged supports 5. The hinged support 5 for attaching the levers to the frame of the grain cleaning machine is therein configured to move in a horizontal and a vertical planes and secure the position by means of fasteners.

EFFECT: grain cleaning machine facilitates sieve cleaning.

3 cl, 1 dwg