Cleaning shoe for a combine harvester

Details Cleaning shoe for a combine harvester Cleaning shoe for a combine harvester

A - Human Necessities

01

F

130/15

A01F 7/00 (2006.01) A01F 11/00 (2006.01) A01F 12/30 (2006.01) A01F 12/44 (2006.01)

Patent

CA 1101297

CLEANING SHOE FOR A COMBINE HARVESTER Abstract of the Disclosure In a cleaning shoe for a combine harvester, threshed grain from the threshing cylinder and separator is received onto the upper run of an endless mesh belt conveyor or sieve band. The sides of the upper run of the conveyor are guided in channels which may be oscillated in a vertical plane so as to agitate the upper run of the sieve band and promote the separation of grain from material other than grain as the material is conveyed rear- wardly, the grain passing downwards through openings in the mesh belt. A second more conventional oscillating sieve element is mounted below the sieve band. Grain cleaning efficiency is augmented by a blower and duct system which provides a plurality of longitudinally spaced, laterally extending elongated air nozzles disposed below the lower sieve element and each directing an air blast rearwardly and upwardly through it. In an alternate embodiment, a third conventional sieve element is supported to move with the guide of the upper run of the sieve band so that it too is oscillated. Discharge from the rearward edge of this third sieve element is received by a supplementary tailings conveyor.

331094

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