GRAIN SEPARATOR Russian patent published in 2002 - IPC

FIELD: agricultural engineering. SUBSTANCE: grain separator is made in the form of two spirals and has housing with covers, drive and discharge branch pipe. Spirals have differently oriented coils and are inserted in spaced relation one into the other for rotation in different directions at different angular speed. Each spiral has main screw-type spiral of oval section with centering clips attached along the entire length thereof. Clips are made in the form of screw-type spirals and are covered with enclosure of elastic rubberized fabric. Enclosure is filled with gas. Cut plant mass is drawn from header auger into space between inner and outer spirals. Spirals are rotating in opposite directions to urge grains to be shelled from ears. Shelled grain is discharged through coil space of outer spiral onto housing bottom and is further delivered into discharge branch pipe. EFFECT: increased efficiency and minimal damage to grains during grain separation. 3 cl, 3 dwg