WINNOWING MACHINE Russian patent published in 2010 - IPC B07B9/02 B07B4/00 A01F12/44 

FIELD: technological processes.

SUBSTANCE: invention relates to agricultural machine building, in particular to machines for cleaning and sorting of grain. Winnowing machine comprises two sieve boots, device of grain feed, fan. Sieves of boots are installed in upper part of machine and are arranged in the form of movable and fixed rectangular frames from metal rods. Movable sieve is installed at the angle of 30-40° to horizontal line. Fixed sieve - at the angle of 70-80° to movable sieve. Movable sieve of boot is equipped with central axis joined to sieve through guide bushings, and which is rigidly connected to machine body. Frame of movable sieve is equipped with hinged mechanism, which is connected to eccentric mechanism, and the latter is connected to machine body. Tray, which is rigidly connected to body, is arranged under movable sieve and at the angle of 20-30° to it. Device of grain feed is located over movable sieve boot. Fixed sieve boot is connected to hopper of bulk wastes, to hopper of seed grain and to double-flow nozzle, which in its turn is connected to fan. Nozzle has body, inside of which there are guide helical elements and rectangular plates arranged in parallel to each other. Hopper of seed grain is connected to hopper of commercial grain via gate, and hopper of commercial grain is connected to hopper-cyclone of feed grain.

EFFECT: increased efficiency of grain treatment and production of seed material 1, 2 for reproduction, as well as increased throughput capacity of machine and its simplified design.

1 dwg