A separator arrangement has an inlet head housing, a feed drum and two axial separating rotors projecting by one end portionwise into the inlet head housing. The inlet head housing has planar inlet portions which extend over the width of the respective axial separating rotor and between which is arranged a ramp-shaped housing portion extending paraxial to the conveying direction of the axial separating rotors and which assists in dividing a harvested material flow into partial flows to be fed to the axial separating rotors. At least one separating element is associated with the ramp-shaped housing portion and has a base body which extends perpendicular to the surface of the housing portion and which has an end face formed as a cutting edge. A coating comprising a wear-resistant second material is arranged on the end face and extends substantially medially in the longitudinal direction of the end face.

A threshing system for a combine harvester includes a support bracket that is configured to be attached to a threshing rotor cylinder of the threshing system and a rasp bar that is configured to be mounted to the support bracket. A channel is formed in one of the rasp bar and the support bracket for receiving a surface of the other of the rasp bar and the support bracket, wherein engagement between the channel and the surface limits movement of the rasp bar on the support bracket.

A threshing system for use in an agricultural harvester. The threshing system includes a rotor and a perforated concave system. The rotor has a rotational axis. The perforated concave system is spaced radially outwardly from the rotor for passage of grain through perforations as the rotor moves crop material across the concave system. The concave system has at least one concave section having a rigid frame, pivotal members, and an arcuate movable member. The rigid frame has a plurality of sides rigidly coupled together. The pivotal members are pivotally coupled and extend to two of the sides of the rigid frame. The arcuate movable member interacts with the plurality of pivotal members to pivot each of the pivotal members as the arcuate movable member is moved along a segment of an arc generally about the rotational axis.

An agricultural vehicle including a rotor configured for threshing a crop material and a housing located at a distance radially away from the rotor and circumferentially encasing at least a portion of the rotor. The agricultural vehicle also includes a discharge chopper positioned downstream of the rotor in a direction of crop material flow, and a discharge deflector moveably connected to the housing, circumferentially disposed around at least a portion of the rotor, and located at a radial distance away from the rotor. The discharge deflector has a distal end that defines a discharge opening for allowing the crop material to pass from the rotor to the discharge chopper such that as the discharge deflector is moved a circumferential position of the discharge opening is correspondingly moved without changing the radial distance between the discharge deflector and the rotor.

A separator module for an agricultural machine. The separator module includes a feederhouse configured to receive crop from a harvesting platform, a casing enclosing a rotor positioned therein and rotatable relative to the casing for processing crop from the feederhouse, a cover extending between the feederhouse and the casing, and a noise control treatment coupled to the cover.

An agricultural vehicle crop feeder system having housings defining a crop passage, a conveyor assembly, a rotor, a guide plate, and one or more guide vanes extending from the guide plate. The conveyor assembly propels crop material along a feeder flow direction to the rotor. The rotor has inlet vanes that receive the crop material in a receiving region located below the rotor's axis. The leading edges of the rotor inlet vanes travel towards the receiving region on a first transverse side of the rotor axis and away from the receiving region on a second transverse side of the rotor axis. The guide plate is adjacent the receiving region. The guide vane extends into the crop passage on the first side of the rotor axis, and angled relative to the flow direction with its trailing edge closer to the first rotor axis, in the transverse direction, than the leading edge.

A rotor assembly for harvesting a crop. The rotor assembly has a rotating portion defined along a rotation axis, a surrounding assembly at least partially surrounding the rotating portion, the surrounding assembly having at least one separation grate coupled to a support. The support defines an inner surface and has at least one interrupter receiver. The at least one interrupter receiver is selectively coupleable to an interrupter to position the interrupter radially inward of the inner surface towards the rotation axis.

A harvesting machine including a cutting head configured to provide cut crop for threshing. The harvesting machine includes a conveyer disposed adjacent to the cutting head and configured to move the cut crop to be threshed along a path. A thresher is configured to thresh the cut crop to provide threshed grain from the cut crop. A separator is disposed adjacently to the thresher and is configured to separate debris from the threshed grain. A feed accelerator is disposed between the conveyor and the thresher, wherein the feed accelerator is configured to advance the cut crop along the path from the conveyor to the thresher. A pre-threshing device is disposed adjacently to the feed accelerator, wherein the feed accelerator interacts with the pre-threshing device to provide threshed grain, and the pre-threshing device is configured to collect the threshed grain before the remaining cut crop is threshed at the thresher.

A removable cover plate assembly may be quickly attached, detached and adjusted to the exterior of a concave grate of a combine harvester in order to adjust the flow characteristics of the concave or separator grate assemblies. The cover plate assembly improves the threshing capability of the rasp bar threshing cylinder while simultaneously capturing additional threshed grain. Moreover, the cover plate assembly of the present invention enables a single set of concave grate assemblies to better harvest a wider variety of crop types.

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.