COMBINE HARVESTER WITH A SPREADER HAVING INDEPENDENT SPREAD WIDTH CONTROL

摘要

A straw and chaff chopper is mounted at the rear hood of a combine harvester and includes a mousing with a feed opening and a discharge opening and a rotor mounted in the housing comprising a hub with a plurality of blades mounted on the hub for chopping the fed materials and accelerating the chopped materials for discharge. A tailboard has a plurality of guide fins arranged relative to th e housing so as to receive the chopped materials from the discharge opening to engage onto a guide surface and guide fins of the tailboard construction for spreading of the chopped materials. The tailboard is divided longitudinally into first and second separate tailboard portions, each arranged to receive a portion of the chopp ed materials and each being adjustable in angle to raise and lower independentl y of the other so as to provide a different spreading effect on the portion received thereon. Fins on the portions prevent the materials entering the gap. Adjustment on t he go from the cab can be provided.