A dirt removal and piling machine is ideally suited for use in cleaning and piling individualized and non-uniformly shaped workpieces, preferably sugar beets but also potatoes, other tuber crops, and even with aggregate rocks for a tilting receiving station. A further aspect of the present machine includes a workpiece unloading or receiving station which can tip sideways after a dump truck unloads the workpieces and longitudinally drives therethrough. In another aspect, the machine also includes a cleaning station having rotatable rollers, an underlying dirt conveyor and a moveable dirt dumping conveyor, hopper or bucket adjacent an end of the dirt conveyor and external to the rollers. Furthermore, another aspect of the machine includes an automatic and/or robotic sampling arm which is operable to remove a tuber crop workpiece sample and automatically package the sample after the sample has moved through a cleaning station.

A disc for use in a disc screen is disclosed. The auger disc includes a central longitudinal disc axis and a hub extending a length along the longitudinal disc axis. The longitudinal disc axis is coaxial with the center of the hub. The hub further includes a hub surface and a helical ridge structure extending away from the hub surface and twisting about the longitudinal axis at least 360 degrees. The auger disc has a disc rotation axis that is parallel to the central longitudinal axis and is offset from the center of the hub. The auger disc is constructed to rotate about the disc rotation axis.

A disc for use in a disc screen is disclosed. The auger disc includes a central longitudinal disc axis and a hub extending a length along the longitudinal disc axis. The longitudinal disc axis is coaxial with the center of the hub. The hub further includes a hub surface and a helical ridge structure extending away from the hub surface and twisting about the longitudinal axis at least 360 degrees. The auger disc has a disc rotation axis that is parallel to the central longitudinal axis and is offset from the center of the hub. The auger disc is constructed to rotate about the disc rotation axis.

The invention relates to a cleaning device (2) for cleaning crops comprising a roller bed (4) comprising several rollers (3) rotatable about a rotational axis (3a), whereby gaps (10) are or can be provided between said rollers (3) in such a manner that impurities present together with the crop on an upper side (4a) of the roller bed (4) can be discharged through the gaps (10) while, at the same time, the crop can be kept on the upper side (4a), whereby the rollers (3) of the roller bed (4) can be driven in such a way that the impurities can be discharged through the gaps (10).

According to the invention, tappets (6) movable in the direction of conveyance (F) are arranged above the upper side (4a) of the roller bed (4) in such a way that crop present on the upper side (4a) of the roller bed (4) can be carried along by these tappets (6) in the direction of conveyance (F), whereby, to that end, said tappets (6) extend between at least two driver means (8; 12), whereby at least the tappets (6) arranged above said upper side (4a) of said roller bed can be moved by the at least two driver means (8; 12) in the direction of conveyance (F).

Embodiments of a harvesting machine configured to uproot hemp plants and process various cut portions of the plants. The harvesting machine includes a harvesting head removably coupled to a main body of the harvesting machine. The harvesting head includes a roller positioned adjacent a lower front end of the harvesting head, the roller having tines extending therefrom and the roller configured to rotate so that the tines loosen soil and lift roots of the plants from the soil. The harvesting machine includes at least one belt positioned adjacently rearward of the roller and is configured to move the uprooted plants from the tines and to move the uprooted plants rearward from the harvesting head. Further, the harvesting head includes a cutting system positioned adjacent the at least one belt and is configured to make at least two cuts along a length of the plant to form the cut portions.

A disc for use in a disc screen is disclosed. The disc includes a longitudinal disc axis and a hub extending a length along the longitudinal disc axis. The hub further includes a hub surface and a helical ridge structure extending away from the hub surface and twisting about the longitudinal axis at least 360 degrees. A cross-section of the hub taken perpendicular to the longitudinal disc axis is non-circular.

The invention relates to a device for cleaning root vegetables comprising at least two rollers (14) rotatably mounted about an axis (A) perpendicular to the direction of travel of the root vegetables on the rollers (14), characterized in that at least one of the rollers (14) is equipped with a means for heating its outer wall (16). Thus, with the outer wall of the roller (14) being heated, this has the effect of drying the soil that is possibly stuck thereon. This drying is enough to make the soil crisp and to overcome the suction phenomenon of the wet soil on the roller (14) and on the reliefs of the roller (14). The vibrations due to the displacement of the vegetables on the rollers ensure that the soil thus dried is detached and cause it to fall to the ground.

The invention relates to a device for cleaning root vegetables comprising at least two rollers (14) rotatably mounted about an axis (A) perpendicular to the direction of travel of the root vegetables on the rollers (14), characterized in that at least one of the rollers (14) is equipped with a means for heating its outer wall (16). Thus, with the outer wall of the roller (14) being heated, this has the effect of drying the soil that is possibly stuck thereon. This drying is enough to make the soil crisp and to overcome the suction phenomenon of the wet soil on the roller (14) and on the reliefs of the roller (14). The vibrations due to the displacement of the vegetables on the rollers ensure that the soil thus dried is detached and cause it to fall to the ground.

A disc for use in a disc screen is disclosed. The disc has a longitudinal axis and includes a hub extending a length along the longitudinal axis. The longitudinal axis is coaxial with the center of the hub and the hub further includes a hub surface, a major axis defined by a first cross section taken perpendicular to the longitudinal axis and through the center of the hub at and a minor axis defined by a second cross section taken perpendicular to the longitudinal axis and through the center of the hub. The first cross section is longer than the second cross section, and the first cross section is substantially orthogonal to the second cross section. A helical ridge structure extends away from hub surface and twists at least 360 degrees about the longitudinal axis for the length.

A dirt removal and piling machine is ideally suited for use in cleaning and piling individualized and non-uniformly shaped workpieces, preferably sugar beets but also potatoes, other tuber crops, and even with aggregate rocks for a tilting receiving station. A further aspect of the present machine includes a workpiece unloading or receiving station which can tip sideways after a dump truck unloads the workpieces and longitudinally drives therethrough. In another aspect, the machine also includes a cleaning station having rotatable rollers, an underlying dirt conveyor and a moveable dirt dumping conveyor, hopper or bucket adjacent an end of the dirt conveyor and external to the rollers. Furthermore, another aspect of the machine includes an automatic and/or robotic sampling arm which is operable to remove a tuber crop workpiece sample and automatically package the sample after the sample has moved through a cleaning station.