An agricultural harvester includes a grain processing section having a crop material handling assembly. The crop material handling assembly is driven in fore and aft oscillation by a device while permitting side to side movement. A pivotal link mechanism structurally connected to the crop material handling assembly midway between its side members and to the agricultural harvester chassis drives linear side to side movement of the crop material handling assembly while permitting fore and aft movement thereof.

An agricultural vehicle includes a chassis; a threshing and separating assembly carried by the chassis; and a cleaning system carried by the chassis and configured to receive crop material that has passed through the threshing and separating assembly. The cleaning system includes a pan configured to receive crop material from the threshing and separating assembly on a pan surface and to shake in a fore-to-aft direction; at least one sieve located below the pan and configured to shake in fore-to-aft and lateral directions, the sieve including a sieve surface configured to receive crop material from the pan; and at least one divider associated with and extending at least 3 centimeters above at least one of the pan surface and the sieve surface.

A sieve system of an agricultural vehicle for separating crop residue from grain, the sieve system including a frame, a plurality of sieve sections, a plurality of dividers and a pivoting system. The sieve sections are pivotally coupled to the frame. The sieve sections include a first sieve section. The dividers include a first divider coupled to the first sieve section. The pivoting system is coupled to the first sieve section and the first divider, to thereby pivot the sieve section at a first angle about a first axis. The pivoting system also either pivots the divider at a second angle about a second axis or flexes the divider at the second angle. The first angle is relative to the frame, and the second angle is relative to the sieve section.

A combine harvester including at least one straw walker extending in a longitudinal direction of the harvester and supported by a front and rear shaft. The shafts are rotatable about respective rotation axes, and each shaft provided with one or more eccentric portions. The straw walker is rotatably mounted on an eccentric portion of the respective front and rear shafts, so that the simultaneous rotation of the shafts actuates a reciprocating motion of the straw walker. The combine further comprises a pivot frame and one or more actuators, configured to adjust the angular position of the frame by pivoting the frame about a pivot axis oriented transversally to the longitudinal direction. The front and rear shafts are configured to rotate with respect to the pivot frame, so that the straw walker's angular position is adjustable while the straw walker executes the reciprocating motion.

A method of controlling operation of a side-shaking mechanism in a combine is provided. The method includes enabling the side-shaking mechanism, and moving the side-shaking mechanism to a predetermined zero position. The method includes receiving incline data representing the inclination of the combine, and receiving sensed data representing at least one operating condition of a combine system. The method includes causing the side-shaking mechanism to increase the distance of movement of the at least one sieve in the side-to-side motion, or decrease the distance of movement of the at least one sieve in the side-to-side motion.

A combine harvester having a cleaning system with at least one cleaner assembly for cleaning the harvested and a drive assembly connected to the cleaning system to drive the cleaning system, thereby driving the at least one cleaner assembly to perform a reciprocating cleaner movement. The drive assembly comprises a variable speed drive assembly with a rotary drive comprising a rotatable output shaft for driving the cleaning system, a transmission to connect the rotatable output shaft to the at least one cleaner assembly, the transmission configured to convert an angular movement of the rotatable output shaft to the reciprocating cleaner movement, and a control unit to control an angular velocity of the rotatable output shaft based on an input signal.

An agricultural harvester includes a grain processing section having a crop material handling assembly. The crop material handling assembly is driven in fore and aft oscillation by a device while permitting side to side movement. A pivotal link mechanism structurally connected to the crop material handling assembly midway between its side members and to the agricultural harvester chassis drives linear side to side movement of the crop material handling assembly while permitting fore and aft movement thereof.

A combine side-shaking control system includes a sieve for separating crop material from other materials and a movable side-shaking mechanism coupled to the sieve and configured to move the sieve in a side-to-side motion. The control system also includes also includes first and second grain loss sensors configured to sense amounts of grain loss from separate portions of the sieve. The control system further includes a controller configured to: (i) receive a first grain loss value corresponding to the sensed first amount of grain loss and a second grain loss value corresponding to the sensed second amount of grain loss; and (ii) cause the side-shaking mechanism to control movement of the sieve in the side-to-side motion based on at least one of the received first grain loss value and the received second grain loss value.

A cleaning section of an agricultural harvester. The cleaning section including a sieve, a plurality of load sensors, and a sieve slope compensating system. The sieve is positioned in the harvester to receive crop material from a threshing section. The plurality of load sensors are coupled to the sieve. The load sensors are configured to produce signals representative of a distributed load of the crop material on the sieve. The sieve slope compensating system is configured to tilt or side shake the sieve dependent upon the signals.

A combine side-shaking control system includes a sieve for separating crop material from other materials and a movable side-shaking mechanism coupled to the sieve and configured to move the sieve in a side-to-side motion. The control system also includes also includes first and second grain loss sensors configured to sense amounts of grain loss from separate portions of the sieve. The control system further includes a controller configured to: (i) receive a first grain loss value corresponding to the sensed first amount of grain loss and a second grain loss value corresponding to the sensed second amount of grain loss; and (ii) cause the side-shaking mechanism to control movement of the sieve in the side-to-side motion based on at least one of the received first grain loss value and the received second grain loss value.