Threshing system and chopper for combine harvester
AssigneeCNH Industrial America LLC
InventorJason L. Shonk
Life of this patent
Estimating the term…
Abstract
A combine (20) harvester includes a cage (32′) at least partially surrounding a rotor (28′) for threshing crops in the space (34) between the cage (321) and the rotor (28′). An auger (302) is at least partially positioned within the cage (32′) and is connected to the rotor (28) for rotating therewith. The auger (302) includes vanes (312) for transporting crop from the rotor (28′) and towards an outlet of the cage (32′). A chopper (320) is positioned either at or adjacent the outlet (310) of the cage (32′). A rotational axis (30) of the chopper (320) is substantially aligned with an axis of rotation of the auger (302) and the rotor (28).
Claims20
A combine harvester comprising:
- a cage at least partially surrounding a rotor for threshing crops in a space between the cage and the rotor;
- an auger at least partially positioned within the cage and connected to said rotor for rotating therewith, said auger comprising vanes for transporting crop in a transport direction from the rotor and towards an outlet of the cage;
- and
- a chopper positioned either at or adjacent the outlet of the cage, wherein a rotational axis of the chopper is substantially aligned with an axis of rotation of the auger and the rotor.
A combine harvester comprising:
- a cage at least partially surrounding a rotor for threshing crops in a space between the cage and the rotor;
- an auger at least partially positioned within the cage and connected to said rotor for rotating therewith, said auger comprising vanes for transporting crop in a transport direction from the rotor and towards an outlet of the cage, wherein the auger has a body and vanes extending from an exterior surface of the body, and wherein a height of the vanes decreases in the transport direction, a pitch of the vanes increases in the transport direction, and a volume space disposed between adjacent convolutions of the vanes is substantially constant in the transport direction;
- and
- a chopper positioned either at or adjacent the outlet of the cage.
A combine harvester comprising:
- a cage at least partially surrounding a rotor for threshing crops in a space between the cage and the rotor;
- a chopper positioned either at or adjacent an outlet of the cage, wherein a rotational axis of the chopper is substantially aligned with an axis of rotation of the rotor;
- and
- means for driving the chopper at a different rate of rotation than a rate of rotation of the rotor.
Dependencies are inferred from the claim text.