Chopping device for combine harvester has fan for discharging chopped straw positioned below driven rotor fitted with spiral chopping tool and vertical counter-restraint rail adjusted relative to latter

摘要

The chopping device (2) has a housing (9) enclosing at least one driven rotor (5) with a vertical or inclined rotation axis (6), provided with a spiral chopping tool (7) and a fan (4) positioned below the rotor for discharging the chopped straw. The inside wall of the housing has a vertical counter-restraint rail (18) which is adjustable relative to the spiral path (8) of the chopping tool.