Material conveyance system in a combine harvester
AssigneeAGCO International GmbH
InventorsKenneth During, Morten Leth Bilde, David Marden
Life of this patent
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Abstract
A combine harvester is provided with a conveyance system for transporting crop material discharged by overhead grain separating apparatus to a grain cleaning shoe. The conveyance system comprises a series of oscillating pans which move the grain in a generally longitudinal direction. A return pan conveys the collected material forwardly to a front discharge edge from where the material falls onto a stratification pan below. The stratification pan conveys the collected material rearwardly to a rear discharge edge from where the material falls into the grain cleaning shoe. At least one of the return pan and the stratification pan is non-rectangular and has a non-transverse discharge edge.
Claims16
A crop-material conveyance pan for a combine harvester, the pan comprising:
- a first return pan;
- and
- a second return pan;
- wherein at least one of the first return pan the second return pan comprises a non-rectangular major surface defining a crop discharge edge having a curved profile when viewed from above.
A combine harvester, comprising:
- at least one grain-processing rotor;
- and
- a crop-material conveyance pan configured to receive grain from the rotor, the crop-material conveyance pan comprising:
- a first return pan;
- and
- a second return pan;
- wherein at least one of the first return pan the second return pan comprises a non-rectangular major surface defining a crop discharge edge having a curved profile when viewed from above.
Dependencies are inferred from the claim text.