Drive reversing mechanism.

摘要

A hydraulically driven drive reversing mechanism (30) to reverse the drive to the header and feeder house components (16, 19,...) of a combine harvester (10), is disclosed. The reversing mechanism (30) includes a first gear (42) splined onto the header drive shaft (25) for rotation therewith, a second free wheeling gear (44) mounted in an intermeshing relationship with the first gear (42) for rotation therewith and a clutch (50) selectively engageable with the second gear (44) to transfer rotational power from a hydraulic motor (32) to affect a rotation of the header drive shaft (25). The hydraulic motor (32) is energizable in opposite directions to permit, when the clutch (50) is engaged, a "rocking" of the header and feeder house components (16,19,...) between forward and reverse directions to dislodge a stubborn plugging slug.