A concave for an agricultural combine includes threshing beds carried by a base frame and forming openings therebetween for grain to pass through. Each threshing bed includes a first end, a second end, a length from the first end to the second end, an inner extremity, an outer extremity, and a separating grate extending across one of the openings for separating grain from threshed crop material. The separating grate extends along the length between the first end and the second end, is between the inner extremity and the outer extremity and includes grate openings and spaced-apart bars. The bars are between adjacent grate openings and include struts each connecting two adjacent parts of the separating grate between adjacent grate openings and severed bars each including bar segments extending inwardly toward one another to respective free ends on either side of a gap between adjacent grate openings.

A method and device for harvesting grain crops is provided. A threshing method includes separating grain from harvested material, which is fed to a threshing phase after a gathering process taking place against a direction of working travel. During threshing, the harvested material is processed as the respective grain crops and admixtures in the form of straw and chaff such that essential, dischargeable admixtures are separated from the grain crops, and these, in the form of a mixture with chaff or similar fine particles, are fed as a grain/chaff stream to a final cleaning. The grains free of these residual admixtures are subsequently collected as grain crops. During at least one feed phase preceding the final cleaning, a transport movement is imparted to the at least one grain/chaff stream with the transport movement having a component in a vertical direction and a component in the direction of working travel.

A combine grain cleaning system having front and rear rollers, a conveyor belt having an upper surface extending from the front roller to the rear roller, a motor operatively connected to the conveyor belt and configured to drive the upper surface in a belt travel direction from the front roller to the rear roller, and a baffle located adjacent the rear roller. The baffle has a leading edge, a trailing edge located behind the leading edge with respect to the belt travel direction and below the leading edge with respect to a vertical direction, and a baffle surface extending from the leading edge to the trailing edge. One or more sieves are located below the baffle, and a fan is provided to direct an airflow at least partially upwards in the vertical direction adjacent the rear roller. A method for separating grain is also provided.

A combine grain cleaning system having front and rear rollers, a conveyor belt having an upper surface extending from the front roller to the rear roller, a motor operatively connected to the conveyor belt and configured to drive the upper surface in a belt travel direction from the front roller to the rear roller, and a baffle located adjacent the rear roller. The baffle has a leading edge, a trailing edge located behind the leading edge with respect to the belt travel direction and below the leading edge with respect to a vertical direction, and a baffle surface extending from the leading edge to the trailing edge. One or more sieves are located below the baffle, and a fan is provided to direct an airflow at least partially upwards in the vertical direction adjacent the rear roller. A method for separating grain is also provided.

A helical auger flight has an inner edge, an outer edge, an inner face, an outer face, and a leading extremity that includes a prominence and a leading edge that extends from the outer edge to the prominence. The prominence extends outward from the leading edge of the leading extremity to an outer end having an upturned jut. A wear plate is releasably connected to the inner face of the helical auger flight. The wear plate extends from the outer edge of the helical auger flight to the prominence. A front extremity of the wear plate extends forwardly of the leading edge of the helical auger flight so as to be in a shielding relationship with respect to the leading edge of the helical auger flight, and a nose of the front extremity of the wear plated is seated in direct contact against a contact surface of the jut.

A procedure for collection and processing of weed seeds of the type which includes: a first step of collecting of a plant material; fourth step of threshing of the harvested material; a fifth step of separating of grains from material other than the grains; a sixth step of cleaning of the main material; a seventh step of transporting the main material to a discharge device; and an eighth step of storing the main material in an appropriate media. Also includes a second step of placing the material obtained by a thresher head assembly into at least one conveyor belt towards a trailer; a third step of transferring the plant material into a transport and hauling vehicle to a stationary processing plant; a ninth step of grinding the residues; a tenth step of introducing the MDG into densification device; and a tenth step of incorporating in a mixer the resulting grinding of the ninth step along with at least one supplement.

A procedure for collection and processing of weed seeds of the type which includes: a first step of collecting of a plant material; fourth step of threshing of the harvested material; a fifth step of separating of grains from material other than the grains; a sixth step of cleaning of the main material; a seventh step of transporting the main material to a discharge device; and an eighth step of storing the main material in an appropriate media. Also includes a second step of placing the material obtained by a thresher head assembly into at least one conveyor belt towards a trailer; a third step of transferring the plant material into a transport and hauling vehicle to a stationary processing plant; a ninth step of grinding the residues; a tenth step of introducing the MDG into densification device; and a tenth step of incorporating in a mixer the resulting grinding of the ninth step along with at least one supplement.

A concave for an agricultural combine includes threshing beds carried by a base frame and forming openings therebetween for grain to pass through. Each threshing bed includes a first end, a second end, a length from the first end to the second end, an inner extremity, an outer extremity, and a separating grate extending across one of the openings for separating grain from threshed crop material. The separating grate extends along the length between the first end and the second end, is between the inner extremity and the outer extremity and includes grate openings and spaced-apart bars. The bars are between adjacent grate openings and include struts each connecting two adjacent parts of the separating grate between adjacent grate openings and severed bars each including bar segments extending inwardly toward one another to respective free ends on either side of a gap between adjacent grate openings.

An agricultural vehicle including a chassis, at least one rotor supported by the chassis and configured for threshing a crop material, at least one exterior side member supported by the chassis and including at least one outlet, and an air conduit located underneath the at least one rotor. The air conduit is configured for providing an airstream directed to the at least one exterior side member such that the airstream forces a material other than grain out through the at least one outlet.

An agricultural vehicle including a chassis, at least one rotor supported by the chassis and configured for threshing a crop material, at least one exterior side member supported by the chassis and including at least one outlet, and an air conduit located underneath the at least one rotor. The air conduit is configured for providing an airstream directed to the at least one exterior side member such that the airstream forces a material other than grain out through the at least one outlet.