An agricultural harvester includes a grain processing section having a sieve assembly. The sieve assembly includes right and left frames interconnected by a cross member. The cross member has end castings securable to the right and left frame members. An elongated U-shaped sheet metal member extends between the castings. An elongated slot at each of the U-shaped sheet metal member terminates in a circular hole. The slot and circular hole accommodate variations in forming tolerances for the U-shaped sheet member and dissipate stresses.

An agricultural harvester includes a grain processing section having a sieve. The sieve is driven in fore and aft oscillation while permitting side to side movement by a pair of cast members interconnected each having three mounting points. Two of the mounting points of the members are interconnected by flexible rubber bushings and the third mounting point of one of the members receives fore and aft oscillating movement and the third mounting point on the second of the members pivotally interconnects to the sieve to drive it into fore and aft oscillation while permitting side to side movement.

An agricultural vehicle includes: a chassis; at least one cleaning sieve carried by the chassis; a grain tank carried by the chassis; an unloader carried by the chassis and configured to unload crop material; and a crop material conveyor carried by the chassis and including a housing having a sieve inlet under the at least one cleaning sieve, a tank outlet coupled to the grain tank, an unloader outlet coupled to the unloader, and an endless conveyor within the housing, the crop material conveyor being configured to switch between a tank feed mode where crop material is conveyed by the endless conveyor out the tank outlet and an unload mode where crop material is conveyed by the endless conveyor out the unloader outlet.

An agricultural harvester includes a straw walker arrangement positioned downstream from a threshing and separating system. The straw walker arrangement includes a first straw walker positioned to receive crop material from the threshing and separating system, a second straw walker positioned downstream from the first straw walker, and a rotatable drum positioned between the first straw walker and the second straw walker. The rotatable drum is operable to convey crop material from the first straw walker to the second straw walker.

An agricultural harvester includes an auger assembly including an auger having an auger shaft defining an axis of rotation and a fighting carried by the auger shaft, the auger being configured to rotate the fighting in a sweeping path about the axis of rotation and convey cleaned crop material toward the crop material elevator; an auger trough placed adjacent to the auger to hold crop material in the sweeping path; and an auger cover held above the sweeping path that is configured to direct flung crop material toward the auger and/or the auger trough.

An agricultural vehicle includes: a chassis; at least one cleaning sieve carried by the chassis; a grain tank carried by the chassis; an unloader carried by the chassis and configured to unload crop material; and a crop material conveyor carried by the chassis and including a housing having a sieve inlet under the at least one cleaning sieve, a tank outlet coupled to the grain tank, an unloader outlet coupled to the unloader, and an endless conveyor within the housing, the crop material conveyor being configured to switch between a tank feed mode where crop material is conveyed by the endless conveyor out the tank outlet and an unload mode where crop material is conveyed by the endless conveyor out the unloader outlet.

An agricultural harvester includes a chassis; a threshing and separating system carried by the chassis and including at least one threshing rotor mounted in a longitudinal direction of the agricultural harvester; a grain pan carried by the chassis that receives crop material from the threshing and separating system, the grain pan being configured to shake in a fore-to-aft direction and a lateral direction; and a cleaning system carried by the chassis supplied with crop material from the grain pan, the cleaning system including at least one sieve configured to shake in the lateral direction out of phase with the grain pan.

An agricultural vehicle includes a chassis defining a rear; a header carried by the chassis and configured to collect crop material from a field; a track carried by the chassis; and a shredding assembly carried by the chassis that receives crop material collected by the header. The shredding assembly includes a shredder configured to shred received crop material; and a shredder pan carried by the chassis under the shredder that includes a shred assister configured to cooperate with the shredder to shred crop material and at least one track follower in contact with the track that allows the shredder pan to move along the track toward the rear of the chassis.

An agricultural vehicle, includes a chassis; a cleaning system carried by the chassis including at least one sieve and configured to clean crop material; and an unloader carried by the chassis and supplied with cleaned crop material from the cleaning system. The unloader includes: a roller; a belt wrapped around the roller; and an oblong housing at least partially enclosing the belt.

The present disclosure relates to an apparatus for automatically separating fine-sized seeds including a hopper where a plant object for seed separation is introduced, a crushing separator disposed below the hopper, to crush the plant object being introduced from the hopper and physically separate the seeds from the plant object, a cyclone part that the seeds and non-seed plant objects, which are crushed and separated in the crushing separator, are introduced, and by cyclone flow, the heavy seeds sink whereas the light-weighted non-seed plant objects float inside, thereby separating the seeds from the rest of plant debris, and a strainer filter part that is mounted to a lower end of the cyclone part and passes the seeds through a strainer filter, thereby spatially separating the seeds from the rest of plant debris.