Rotor for an axial flow combine

Details Rotor for an axial flow combine Rotor for an axial flow combine

A - Human Necessities

01

F

130/8

A01F 12/20 (2006.01) A01F 7/06 (2006.01)

Patent

CA 1107168

Case 780419 Thomas Edward Powell and Shiro Tom Ito IMPROVED ROTOR FOR AN AXIAL FLOW COMBINE Abstract of the Disclosure The inlet end of an axial flow rotor feeds high volumes of crop materials at low crop pressures toward the threshing and separating areas to avoid bunching of crop materials or plugging of the rotor. A cylindrical core tube at the inlet end of the rotor is of substantially reduced diameter compared to the generally cylindrical threshing or separating portions of the rotor. A frusto- conical portion connects the core tube to the threshing portion for a ramp-like transition of crop materials near the threshing area. The flighting, which is helically disposed about the core tube, feeds the materials toward special threshing elements which rise from the frusto- conical portion and a connecting portion of the core tube to a height approximately equal to that of a plurality of rasp bars affixed to the threshing portion for uniformly dispersing the crop materials against the rotor casing. The threshing elements on the frusto-conical portion have coarse protrusions which are particularly effective in removing lumps and bunches from the materials, for threshing corn, and for combing cereal grain crops into a uniform and thin mat of fast-moving crop material before threshing by the rasp bars.

319583

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