FIELD CHOPPER WITH A BLOWER DRUM WITH INCREASED AXIAL FLOW

摘要

Field chopper (1) configured to chop (chop) harvested crops and produce a stream of finely chopped harvest material, the harvesting machine including a rotary blower drum (8) mounted on a blower housing (11, 12, 24) around the flow to push harvest material to an outlet sleeve (9) of the harvesting machine, the blower drum (8) having an open structure allowing air flow in the axial direction of the drum, and the blower drum being arranged between two side walls (24) of the blower housing , wherein at least one of the side walls (24) contains one or more air inlet openings (26), characterized in that the harvesting machine (1) contains at least one set of axial flow turbine blades (20) arranged between the blower drum (8) and one or both side walls (24) of the blower housing, the blades being rotatable about the axis of rotation (15) of the blower drum.