A cleaning device includes a first frame plate, a shaking plate, a second frame plate, a sieve body, a driving mechanism, a throwing rod, and a crank and connecting rod mechanism. The shaking plate is mounted in the first frame plate, forms an angle of inclination with a horizontal plane, and is connected to a shaking device. The second frame plate is mounted below the first frame plate, and is connected to the first frame plate through a crank mechanism. The sieve body is mounted in the second frame plate. The driving mechanism is connected to the shaking device and the second frame plate, and configured for driving the shaking device to cause the shaking plate to shake and driving the second frame plate to cause the sieve body to perform a sieving motion. A harvester including the cleaning device is further provided.

A cleaning system for an agricultural combine includes a cleaning shoe including a chaffer having an upstream extremity and a downstream extremity, a cleaning fan for establishing a flow of air upwardly through the chaffer, and a transverse chaffer dam mounted proximate to the downstream extremity transversely obstructing a crop layer flow path extending over the chaffer from the upstream extremity to the downstream extremity while permitting air and threshed crop material to flow thereover and thereunder through a transverse opening between the chaffer dam and the downstream extremity.

A drop pan system for collecting a sample of crop material discharged by a harvester while harvesting crops. The drop pan is magnetically coupled to a support structure disposed on the harvester by at least one electro-permanent magnet having a default de-energized state and an energized state. In the default de-energized state, the at least one electro-permanent magnet is electrically isolated from an electric power source. In the energized state, the least one electro-permanent magnet is electrically coupled with the electric power source. As the harvester advances through the field harvesting the crop, the drop pan is released from the support structure by switching the electro-permanent magnet from the default de-energized state to the energized state such that the drop pan drops to the ground surface. The open top end of the drop pan on the ground surface captures a sample of the crop material discharged by the advancing harvester.

A harvester includes a chassis, a separation frame movably supported by the chassis and upon which crop material is deposited, a reciprocating drive operably coupled to the separation frame to reciprocate the separation frame, a control system, a sensor programmed to produce a signal indicative of a tilt of the chassis relative to a gravitational direction, and programmed to provide the signal to the control system, and an adjustable link operably coupled between the separation frame and the chassis to adjust a pivot point of the separation frame. The control system is programmed to determine a change in tilt of the chassis based on the signal from the sensor. The controller is programmed to adjust the adjustable link to modify the pivot point of the separation frame in response to the change in tilt of the chassis.

A self-propelled combine harvester has at least one tilting mechanism for the uniform distribution of a harvested material on an oscillating conveying and cleaning unit, in particular a top sieve. The tilting mechanism has elements for defining a swiveling direction of the conveying and cleaning unit which are arranged between the conveying and cleaning unit and a machine housing. The tilting mechanism has an actuator for continuous adjustment of at least one component part of the elements from an initial position to an adjusting position. The position of the at least one component part decisively defines the swiveling direction. An electric control unit controls the actuator depending on a state of the combine harvester and/or harvested material and the initial position of the at least one component part of the tilting mechanism.

A method and an apparatus for separating a crop flow on at least one conveying and cleaning unit, particularly a top sieve, of a combine harvester, wherein the conveying and cleaning unit is excited to a longitudinal oscillation and a transverse oscillation. The transverse oscillation is controlled depending on at least one state, wherein least one state for controlling the transverse oscillation is the inclination of the combine harvester, wherein at least one further state for controlling the transverse oscillation is the grain purity, particularly the grain purity of a main crop flow. The transverse oscillation is pre-controlled depending on the inclination of the combine harvester and fine-tuned depending on the grain purity.

A driver assistance system for a combine harvester that has a processing stage with an input for a crop flow, a first output for a useful flow and has abundant threshed grains, and a second output for a residual flow with scarce grains. At least one operating parameter of the processing stage is adjustable. The driver assistance system has an actuatable rethreshing device arranged at the second output of the processing stage, a residual grain sensor for detecting a proportion of threshed out grain in the residual flow downstream of the rethreshing device, and an evaluating device that turns the rethreshing device on and off, compares the proportions of threshed out grains in the residual flow when the rethreshing device is turned on and when the rethreshing device is turned off, and to adapt the at least one operating parameter of the processing stage based on the comparison.

A drop pan system for collecting discharge samples from combine harvesters or other conveyed machines or implements features a support housing attachable to the machine, a drop pan receivable in a nested position within the housing, and a magnetic hold/release mechanism with electro-permanent magnets responsive to selective energization to switch from a holding state emitting an external magnetic field for holding the drop pan in the nested position, to a release state cancelling the external magnetic field to thereby release the drop pan from the housing. A power supply is positioned on the housing at an area that resides within a footprint of the drop pan's nested position. Differently sized drop pans may be included, and the housing may include alignment guides for self-aligning the drop pan during magnetically aided placement thereof. Electrical components of the housing may be contained in an enclosure that doubles as a support for the electro-permanent magnets.

A drop pan system for collecting discharge samples from combine harvesters or other conveyed machines or implements features a support housing attachable to the machine, a drop pan receivable in a nested position within the housing, and a magnetic hold/release mechanism with electro-permanent magnets responsive to selective energization to switch from a holding state emitting an external magnetic field for holding the drop pan in the nested position, to a release state cancelling the external magnetic field to thereby release the drop pan from the housing. A power supply is positioned on the housing at an area that resides within a footprint of the drop pan's nested position. Differently sized drop pans may be included, and the housing may include alignment guides for self-aligning the drop pan during magnetically aided placement thereof. Electrical components of the housing may be contained in an enclosure that doubles as a support for the electro-permanent magnets.

A sieve for a cleaning system of an agricultural harvester includes: a sieve frame defining a top side; adjustable louvers carried by the sieve frame and defining apertures; an adjustment bar coupled to the adjustable louvers such that displacement of the adjustment bar changes a size of at least some of the apertures; and an adjustment assembly. The adjustment assembly includes: an adjustment arm coupled to the adjustment bar and pivotable relative to the sieve frame such that pivoting of the adjustment arm about a pivot axis displaces the adjustment bar. The adjustment arm carries a locking pin. A shaft is disposed on the top side and coupled to the adjustment arm. Displacement of the shaft from a first position to a second position causes a corresponding displacement of the locking pin from a locking position to an adjustment position.