A transition cone for a threshing system of an agricultural harvesting machine has an inner surface with a tapering inner circumference between a wider upstream end and a narrower downstream end, and a plurality of vanes in the transition cone. Each vane extends between the upstream end and the downstream end and at least partly around the tapering inner circumference. Each vane includes an upstanding segment extending away from the inner surface, and a base segment extending from the upstanding segment along the inner surface on the downstream side of the upstanding segment. The base segment has a thicker proximal region adjacent the upstanding segment and a thinner distal edge opposite thereto, with a curved exposed surface extending there between.

The disclosure pertains to separably driven rotor portions for a combine harvester and a method for threshing grain using separably-driven rotor portions. The combine harvester is moved through harvest material comprising grain material and material-other-than-grain (MOG). The grain material is separated from the MOG using multiple processing areas. The auger portion may be stopped or rotated at a slower speed with respect to rotation of the threshing portion to simulate the gathering of a large amount of crop material even when small plots are involved, thereby providing the benefits of large-plot harvesting to small-plot applications.

The disclosure pertains to separably driven rotor portions for a combine harvester and a method for threshing grain using separably-driven rotor portions. The combine harvester is moved through harvest material comprising grain material and material-other-than-grain (MOG). The grain material is separated from the MOG using multiple processing areas. The auger portion may be stopped or rotated at a slower speed with respect to rotation of the threshing portion to simulate the gathering of a large amount of crop material even when small plots are involved, thereby providing the benefits of large-plot harvesting to small-plot applications.

A liner panel for a transition cone of a farm combine is provided. The liner panel is configured to absorb abrasive forces caused by crop cuttings moving across an inner surface of the transition cone. The liner panel includes an upper edge having a length. A lower edge is positioned opposite the upper edge and has a length that is smaller than the length of the upper edge. Opposing side edges are connected to the upper edge and lower edge. The upper edge, lower edge and opposing edges cooperate such that the liner panel has a tapered shape.

An agricultural thresher rotor comprising: a main body extending along a rotation axis in a processing direction from a front main body end to a rear main body end; a rotor transition surface extending from the front main body end and tapered to decrease in cross-sectional size, as viewed along the rotation axis, away from the main body; and at least one impeller extending away from the rotation axis from the rotor transition surface, and configured to move crop material towards the main body upon rotation of the rotor about the rotation axis. The rotor transition surface and the main body comprise at least one flute located downstream of the at least one impeller, and defining a recessed flute volume in the rotor transition surface and the main body. An agricultural thresher including a rotor, and an agricultural combine including the thresher are also provided.

An agricultural thresher rotor comprising: a main body extending along a rotation axis in a processing direction from a front main body end to a rear main body end; a rotor transition surface extending from the front main body end and tapered to decrease in cross-sectional size, as viewed along the rotation axis, away from the main body; and at least one impeller extending away from the rotation axis from the rotor transition surface, and configured to move crop material towards the main body upon rotation of the rotor about the rotation axis. The rotor transition surface and the main body comprise at least one flute located downstream of the at least one impeller, and defining a recessed flute volume in the rotor transition surface and the main body. An agricultural thresher including a rotor, and an agricultural combine including the thresher are also provided.

Separably-driven rotor portions for a combine harvester and a method for threshing grain using separably-driven rotor portions are provided. The combine harvester is moved through harvest material comprising grain material and material-other-than-grain (MOG). The grain material is separated from the MOG using multiple processing areas. The auger portion may be stopped or rotated at a slower speed with respect to rotation of the threshing portion to simulate the gathering of a large amount of crop material even when small plots are involved, thereby providing the benefits of large-plot harvesting to small-plot applications.

Separably-driven rotor portions for a combine harvester and a method for threshing grain using separably-driven rotor portions are provided. The combine harvester is moved through harvest material comprising grain material and material-other-than-grain (MOG). The grain material is separated from the MOG using multiple processing areas. The auger portion may be stopped or rotated at a slower speed with respect to rotation of the threshing portion to simulate the gathering of a large amount of crop material even when small plots are involved, thereby providing the benefits of large-plot harvesting to small-plot applications.

An agricultural harvester includes a chassis and a threshing and separating system carried by the chassis that is configured for threshing and separating grain from gathered crop material. The threshing and separating system includes: a rotor defining a longitudinal axis; a concave at least partially surrounding the rotor; a transition cone defining an infeed to the rotor; and a transition surface connecting the transition cone to the concave and having a conical portion defined about the longitudinal axis and a blended portion connected to the conical portion. The blended portion defines a first end connected to the conical portion and a second end distanced from the first end in a lateral direction. The blended portion defines a substantially conical shape about the longitudinal axis at the first end and approaches a substantially cylindrical shape about the longitudinal axis toward the second end.

An agricultural harvester includes a chassis and a threshing and separating system carried by the chassis that is configured for threshing and separating grain from gathered crop material. The threshing and separating system includes: a rotor defining a longitudinal axis; a concave at least partially surrounding the rotor; a transition cone defining an infeed to the rotor; and a transition surface connecting the transition cone to the concave and having a conical portion defined about the longitudinal axis and a blended portion connected to the conical portion. The blended portion defines a first end connected to the conical portion and a second end distanced from the first end in a lateral direction. The blended portion defines a substantially conical shape about the longitudinal axis at the first end and approaches a substantially cylindrical shape about the longitudinal axis toward the second end.