An agricultural harvester including a chassis, a threshing and separating system for separating grain from MOG, and a grain cleaning system for further separating grain from residual MOG. The grain cleaning system has a main grain pan, an intermediate grain pan located beneath and rearward of the main grain pan, and at least one sieve located beneath and rearward of the intermediate grain pan. The main grain pan, the intermediate grain pan, and the at least one sieve are so arranged that the mixture of grain and residual MOG undergoes a first fall step from the main grain pan to the intermediate grain pan and a second fall step from the intermediate grain pan to the at least one sieve.

In a sieve apparatus, a housing (1) is provided with an inlet section with a feed inlet for material to be sifted and a discharge section including at least one outlet. Means are provided for vibrating the screen mesh. The housing has two substantially vertical side walls (2), and a screen mesh (5) having at least one side edge (51) is supported by a support structure (6, 7) connected to the respective side wall (2). The support structure includes a support element (7) along each side wall and adapted to support the screen mesh (5). Each support element is provided as a support profile (7) having an inclined support surface (73) for the side edge (51) of the screen mesh and constituting a V-shaped structure protruding into the housing, said support surface (73) meeting a lower surface (74) in an apex (75) located at a distance from the side wall (2) inside the housing (1). Specifically, each V-shaped support profile (7) is formed as an integral part of the respective side wall (2).

In a sieve apparatus, a housing (1) is provided with an inlet section with a feed inlet for material to be sifted and a discharge section including at least one outlet. Means are provided for vibrating the screen mesh. The housing has two substantially vertical side walls (2), and a screen mesh (5) having at least one side edge (51) is supported by a support structure (6, 7) connected to the respective side wall (2). The support structure includes a support element (7) along each side wall and adapted to support the screen mesh (5). Each support element is provided as a support profile (7) having an inclined support surface (73) for the side edge (51) of the screen mesh and constituting a V-shaped structure protruding into the housing, said support surface (73) meeting a lower surface (74) in an apex (75) located at a distance from the side wall (2) inside the housing (1). Specifically, each V-shaped support profile (7) is formed as an integral part of the respective side wall (2).

A vibrating screen feed conveying apparatus for conveying and separating sticky moisture laden bulk solids which are sticky and wet flowing onto a vibrating screening feeder and into a hopper. The apparatus includes a bed on which material is conveyed, a longitudinal counterbalance supported on a plurality of isolation springs, a plurality of inclined drive springs extending between the bed and the longitudinal counterbalance, and a plurality of stabilizers for controlling movement of the drive springs along their central axes. A plurality of vibratory motors, each having rotatable eccentric weights are attached to the rear end of the longitudinal counterbalance. The eccentric weights rotate in phase with one another to vibrate the bed at a vibration frequency.

The vibrating apparatus has a housing (1) with a wall (2) provided with at least one aperture (3). A peripheral flange (4) protrudes from the wall (2) at the aperture (3) and has a plane surface (5) for abutment of a covering. The peripheral flange (4) is formed as an integral part of the wall (2), for instance by sheet metal forming, such as drawing, pressing, pulling, rolling and/or punching.

The vibrating apparatus has a housing (1) with a wall (2) provided with at least one aperture (3). A peripheral flange (4) protrudes from the wall (2) at the aperture (3) and has a plane surface (5) for abutment of a covering. The peripheral flange (4) is formed as an integral part of the wall (2), for instance by sheet metal forming, such as drawing, pressing, pulling, rolling and/or punching.

A crop residue spreader including at least one impeller, at least one radial housing, and at least one blower outlet opening. The at least one radial housing includes a crop residue outlet opening. The at least one impeller is configured to be rotatably driven around a rotation axis such that a crop residue flow is ejected through the crop residue outlet opening of the at least one radial housing, such that the crop residue flow is converted from an incoming crop residue flow into a wider outgoing crop residue flow. The at least one separate blower outlet opening is separate from the crop residue outlet opening of the at least one radial housing. The at least one blower outlet opening is configured to provide an outgoing airflow to accelerate the crop residue flow.

A combine harvester is provided with a threshing system, a preparation arrangement and cleaning arrangement. The preparation arrangement comprises multiple preparation stages, each of said stages being configured to transport said mixture over a given distance between a front edge and a rear edge of the stage, with an air gap being present between each pair of consecutive stages. The preparation arrangement further comprises a blower, separate from the main blower, said blower configured to direct air towards at least one of said air gaps, to thereby blow at least a portion of said mixture towards the rear of the combine harvester. The preparation arrangement comprises a plate provided with fins mounted transversally with respect to the longitudinal direction of the harvester, each fin representing one of said preparation stages, the plate further comprising one or more openings between at least one pair of consecutive fins.

A combine harvester including a frame, threshing apparatus, a grain cleaning system, and a feederhouse pivotally mounted to the frame on a transverse lift axis. The feederhouse includes a conveyor for conveying cut crop material from a fore opening to an aft opening. The feederhouse is configured to support a cutting header at its forward end. The grain cleaning system includes a transverse cross-flow fan having a debris screen protecting an air inlet channel. The debris screen is pivotally mounted along a first transverse edge to the frame and along a second transverse edge to the underside of the feederhouse. One of the first transverse edge and second transverse edge is slideably mounted to the frame or feederhouse respectively to permit the feederhouse to be raised and lowered around the lift axis.

A metal mesh has a plurality of through-holes. A photosensitive organic material is attached to at least part of the metal mesh. The metal mesh is sterilized and/or cleaned. A determination of whether or not the sterilization and/or cleaning has been successful is made by analyzing the photosensitive organic material attached to the metal mesh.