Combine Harvester with Improved Chopper and Spreader Arrangement

摘要

A combine harvester has at least one rotor oriented in the longitudinal direction of the harvester and configured to separate grains and light chaff from a stream of residue material transported to the distal end of the rotor, where said stream is ejected downwards into a chopper housing. The chopper housing has a pair of chopper wheels configured so that the stream of residue material is ejected directly into the area between said chopper wheels, with essentially no residue being allowed to enter the space between the circumference of the wheels and the sidewalls of the chopper housing. The harvester also has a spreader with a pair of laterally placed spreader openings in the chopper housing, preferably with a pair of spreader snouts mounted on said openings.

主权项

1. A combine harvester for harvesting and processing crops by separating grains from residue material, the combine harvester comprising:
a threshing arrangement, comprising at least one rotor mounted in the longitudinal direction of the combine harvester, and configured to separate grains and light chaff from a stream of residue material, and further to eject said stream of residue material in a downward direction, a chopper arrangement configured to receive said stream of residue material, comprising two rotatable chopper wheels, configured to rotate in opposite directions and arranged side by side in a chopper housing, underneath the at least one rotor, the at least one rotor having a rotation axis substantially oriented in the longitudinal direction of the combine harvester, and stationary cutter configured to cooperate with said chopper wheels to cut said residue so as to produce two streams of chopped material, a spreader configured to receive said streams of chopped material and spread the chopped material in an area behind the combine harvester, wherein the threshing and chopper arrangements are configured so that essentially all of the material in said stream of residue material is ejected directly into an area between the chopper wheels.