An apparatus for separating plant material from a harvested plant includes a frame and: (a) a planar sheet attached to the frame, the planar sheet having a thickness thereof and an aperture therethrough, the aperture having a length defining a longitudinal axis and a width equal to or greater than the thickness of the planar sheet; and (b) a motor-driven blade defining a cutting edge dimensioned for sweeping adjacent to one side of the planar sheet, the cutting edge being aligned with the longitudinal axis when adjacent to the aperture.

The planar sheet may be sloped in a downwardly sloped direction toward a receiving tray for receiving separated plant material. A plurality of apertures of different widths may be covered by pairs of oppositely sliding covers having beveled edges at the apertures. A path from each aperture in the downwardly sloped direction does not intersect any other aperture.

An apparatus for separating plant material from a harvested plant includes a frame and: (a) a planar sheet attached to the frame, the planar sheet having a thickness thereof and an aperture therethrough, the aperture having a length defining a longitudinal axis and a width equal to or greater than the thickness of the planar sheet; and (b) a motor-driven blade defining a cutting edge dimensioned for sweeping adjacent to one side of the planar sheet, the cutting edge being aligned with the longitudinal axis when adjacent to the aperture.

The planar sheet may be sloped in a downwardly sloped direction toward a receiving tray for receiving separated plant material. A plurality of apertures of different widths may be covered by pairs of oppositely sliding covers having beveled edges at the apertures. A path from each aperture in the downwardly sloped direction does not intersect any other aperture.

A threshing and separating system including a rotor cage, a first vane rail movably connected to the rotor cage, and a first vane portion with a first constrained end pivotably connected to the rotor cage and a first movable end linked to the first vane rail. The threshing and separating system further including a second vane rail movably connected to the rotor cage, and a second vane portion with a second constrained end pivotably connected to the rotor cage and a second movable end linked to the second vane rail, the second vane portion and the first vane portion together define a substantially continuous vane.

A threshing and separating system including a rotor cage, a first vane rail movably connected to the rotor cage, and a first vane portion with a first constrained end pivotably connected to the rotor cage and a first movable end linked to the first vane rail. The threshing and separating system further including a second vane rail movably connected to the rotor cage, and a second vane portion with a second constrained end pivotably connected to the rotor cage and a second movable end linked to the second vane rail, the second vane portion and the first vane portion together define a substantially continuous vane.

A threshing and separating system for an agricultural vehicle includes: a rotor cage; a first vane rail movably connected to the rotor cage; a first vane portion pivotably connected to the rotor cage and linked to the first vane rail; a second vane rail movably connected to the rotor cage, the second vane rail being movable independently of the first vane rail; and a second vane portion pivotably connected to the rotor cage and linked to the second vane rail, the second vane portion and the first vane portion together defining a substantially continuous vane.

A threshing and separating system for an agricultural vehicle includes: a rotor cage; a first vane rail movably connected to the rotor cage; a first vane portion pivotably connected to the rotor cage and linked to the first vane rail; a second vane rail movably connected to the rotor cage, the second vane rail being movable independently of the first vane rail; and a second vane portion pivotably connected to the rotor cage and linked to the second vane rail, the second vane portion and the first vane portion together defining a substantially continuous vane.

A threshing and separating system for an agricultural vehicle includes: a rotor cage; a first vane rail movably connected to the rotor cage; a first vane portion pivotably connected to the rotor cage and linked to the first vane rail; a second vane rail movably connected to the rotor cage, the second vane rail being movable independently of the first vane rail; and a second vane portion pivotably connected to the rotor cage and linked to the second vane rail, the second vane portion and the first vane portion together defining a substantially continuous vane.

A threshing and separating system for an agricultural vehicle includes: a rotor cage; a first vane rail movably connected to the rotor cage; a first vane portion pivotably connected to the rotor cage and linked to the first vane rail; a second vane rail movably connected to the rotor cage, the second vane rail being movable independently of the first vane rail; and a second vane portion pivotably connected to the rotor cage and linked to the second vane rail, the second vane portion and the first vane portion together defining a substantially continuous vane.

A system for an agricultural harvester includes an extractor configured to separate debris from a crop and expel the debris therefrom. The extractor can include a hood and a fan assembly positioned at least partially within the hood and configured to generate a suction force to force the debris through the extractor. The fan assembly includes a fan blade. An actuator is configured to alter a position of the fan blade relative to an upper portion of the hood. A sensor system is configured to generate data indicative of one or more operating parameters or conditions of the extractor. A computing system is communicatively coupled to the sensor system and the actuator. The computing system being configured to receive the data from the sensor system and determine a defined position of the fan blades relative to the hood based at least in part on the data from the sensor system.

A system for an agricultural harvester includes an extractor configured to separate debris from a crop and expel the debris therefrom. The extractor can include a hood and a fan assembly positioned at least partially within the hood and configured to generate a suction force to force the debris through the extractor. The fan assembly includes a fan blade. An actuator is configured to alter a position of the fan blade relative to an upper portion of the hood. A sensor system is configured to generate data indicative of one or more operating parameters or conditions of the extractor. A computing system is communicatively coupled to the sensor system and the actuator. The computing system being configured to receive the data from the sensor system and determine a defined position of the fan blades relative to the hood based at least in part on the data from the sensor system.