Method of cleaning threshed grain in a combine

摘要: A method for cleaning threshed grain in a combine harvester is disclosed wherein the conveyed into cylinder that rotatably driven at sufficient speed to impart centrifugal forces on urge through sieve openings during each entire 360 degree revolution of cylinder. The sieves are mounted within axially extending shoes connected rotating individual reciprocatory movement along generally axial direction inclined inwardly toward axis rotation convey rearwardly and help cleaned pass openings. Simultaneously with reciprocating shoes, fan blows air make unwanted residue airborne discharge from cylinder, also being directed threshold twice before it received sieves. Unthreshed heads tailings section return threshing separating mechanism further harvesting treatment discharged