Variable drive for a harvester functional element

Details Variable drive for a harvester functional element Variable drive for a harvester functional element

A - Human Necessities

01

F

74/238

A01F 12/00 (2006.01) A01D 69/06 (2006.01) A01F 12/56 (2006.01)

Patent

CA 1200991

VARIABLE DRIVE FOR A HARVESTER FUNCTIONAL ELEMENT Abstract of the Disclosure In a drive system for the threshing cylinder of a combine harvester, a conventional infinitely variable V-belt drive, is combined with a two-speed final drive assembly. In the final drive assembly, an epicyclic gear train is housed within the body of a driven sheave journaled on the cylinder shaft. For a direct drive mode, the sheave is coupled to the shaft by way of a flange mounted non-rotatably on the shaft. A sun gear of the gear train is controllable externally of the sheave body and may be non-rotatably secured relative to the combine body for a cylinder speed reducing mode. The combine cylinder speed is therefore infinitely variable within, selectively, either an upper range or a lower range.

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