Abstract: A separating device is provided for separating a harvested mixture of root crops and admixtures. The separating device includes at least one conveyor element which circulates in operation at least for supplying the harvested mixture to a separation region, or for discharging the root crops from the separation region in a conveying direction. The separating device includes at least one fluid flow generator and at least one directing device for directing a fluid flow in a fluid flow direction to the separation region. The directing device is at least realized in at least one directing portion by the conveyor element itself.

Abstract: A separating device is provided for separating a harvested mixture of root crops and admixtures. The separating device includes at least one conveyor element which circulates in operation at least for supplying the harvested mixture to a separation region, or for discharging the root crops from the separation region in a conveying direction. The separating device includes at least one fluid flow generator and at least one directing device for directing a fluid flow in a fluid flow direction to the separation region. The directing device is at least realized in at least one directing portion by the conveyor element itself.

Abstract: A machine for harvesting root crop has a lifting device that in a position of use on a harvest field lifts several rows of the crop with admixtures from the soil transversely to the travel direction in accordance with a lifting width. From the lifting device the loosened mixture of crop and admixtures is movable opposite to the travel direction by a first longitudinal conveyor and is transferred onto a second screening belt conveyor. Between longitudinal conveyor and screening belt conveyor, a transfer zone is defined with belt overlap. The first longitudinal conveyor in the conveying direction together with the upstream lifting device forms a module that is movable in transverse direction of the machine relative to the second screening belt conveyor. This module, relative to the common transfer zone, can be moved at least sectionwise into a position of lateral spacing relative to the second screening belt conveyor.

Abstract: A root crop harvesting machine has a crop lifting device that has associated therewith downstream in the conveying direction an ascending first sorting stretch with substantially unchangeable working width. The crop is conveyed across a cleaning stretch to a collecting bunker, wherein a conveying run movable along the ascending sorting stretch is guided to a top drop zone where the conveyed material is transferred onto a downstream conveying stretch. The conveying run in the area of an upper unloading end interacts with at least one deflection conveying unit receiving the conveyed crop stream. This upper deflection conveying unit is provided with at least one separating device that, in working position, is moveable into a position of lateral projecting width so as to project at least on one side past the receiving width of the machine; from this position, it is returnable into a travel position for road travel.

Abstract: A separating device for separating a crop from a mixture with admixtures has a drop stage and a conveying device supplying the mixture in a conveyed stream to the drop stage. An air stream is supplied to the drop stage, wherein the mixture is falling in the drop stage and is affected by the air stream, wherein the drop stage effects loosening of the mixture. A retaining element is arranged downstream of the drop stage so as to face the mixture falling in the drop stage. The air stream interacts with the retaining element. Downstream of the retaining element the crop and solid bodies separated from the mixture are transported farther as separated individual parts in substantially opposite conveying directions. A diverting device is provided that can at least partially divert the conveyed stream upstream of the retaining element.

Abstract: A separating and cleaning device for a root crop harvester has at least one separating and cleaning stretch. In this separating and cleaning stretch, at least one roller is arranged that is assembled of one or several roller segments that in direction of a longitudinal roller axis are coaxially adjoining each other. These roller segments are provided with a jacket part made of an elastically yielding material and provided with entrainment ribs projecting outwardly. This jacket part interacts radially inwardly with a receiving area that is provided with free spaces delimited by intermediate webs as well as a through opening, wherein the receiving area can receive a polygonal shaft or drive element for torque transmission. The roller segments, beginning at their inner through opening, are provided with a multi-layer structure in radial outward direction.

Abstract: The invention relates to a separation system for a potato harvesting machine or a preparation machine for separating potatoes, or similar crops, from a mixture of clods, stones, and similar solid bodies. A conveying assembly is thereby utilized to feed the essentially compact mixture as a delivery flow, from where the mixture displaced into the area of at least one drop stage, and thereby influenced by way of a conveying means in the form of an air stream, can be separated. Thereafter, at least the harvested material and the solid bodies, respectively, can be moved on as individual separated goods, and can be moved out of the separation system. The system according to the invention is characterized in that subsequently to the drop stage bringing about a loosening of the mixture, at least one retaining element located opposite the falling separated goods and interacting with the at least one air stream is provided.

Abstract: A root crop harvesting machine has a crop lifting device that has associated therewith downstream in the conveying direction an ascending first sorting stretch with substantially unchangeable working width. The crop is conveyed across a cleaning stretch to a collecting bunker, wherein a conveying run movable along the ascending sorting stretch is guided to a top drop zone where the conveyed material is transferred onto a downstream conveying stretch. The conveying run in the area of an upper unloading end interacts with at least one deflection conveying unit receiving the conveyed crop stream. This upper deflection conveying unit is provided with at least one separating device that, in working position, is moveable into a position of lateral projecting width so as to project at least on one side past the receiving width of the machine; from this position, it is returnable into a travel position for road travel.

Abstract: A machine for harvesting root crop has a lifting device that in a position of use on a harvest field lifts several rows of the crop with admixtures from the soil transversely to the travel direction in accordance with a lifting width. From the lifting device the loosened mixture of crop and admixtures is movable opposite to the travel direction by a first longitudinal conveyor and is transferred onto a second screening belt conveyor. Between longitudinal conveyor and screening belt conveyor, a transfer zone is defined with belt overlap. The first longitudinal conveyor in the conveying direction together with the upstream lifting device forms a module that is movable in transverse direction of the machine relative to the second screening belt conveyor. This module, relative to the common transfer zone, can be moved at least sectionwise into a position of lateral spacing relative to the second screening belt conveyor.

Abstract: A screen chain conveyor for a root crop harvesting machine has a support belt having belt ends and transverse conveying rods secured in the support belt. A belt fastener is provided that has connecting members attached to the belt ends, respectively. The belt fastener has an articulated connection connecting the connecting members. The articulated connection has a component pair and a seal adapted to prevent at least penetration of dirt particles into the component pair.

Abstract: A separating device for separating crop from a mixture with admixtures has a drop stage and a conveying device supplying the mixture to the drop stage. The mixture is falling in the drop stage and the drop stage effects loosening of the mixture. A retaining element is arranged downstream of the drop stage so as to face the mixture falling in the drop stage, wherein downstream of the retaining element the crop and the solid bodies separated from the mixture are transported farther as separated individual parts in substantially opposite conveying directions. An air stream interacts with the retaining element and exits as a discharged air stream from the retaining element. A functional unit extends substantially above the retaining element and interacts at least partially with the discharged air stream and produces one or more partial air streams. The partial air streams are controllable by the functional unit.

Abstract: A separating device for separating a crop from a mixture with admixtures has a drop stage and a conveying device supplying the mixture in a conveyed stream to the drop stage. An air stream is supplied to the drop stage, wherein the mixture is falling in the drop stage and is affected by the air stream, wherein the drop stage effects loosening of the mixture. A retaining element is arranged downstream of the drop stage so as to face the mixture falling in the drop stage. The air stream interacts with the retaining element. Downstream of the retaining element the crop and solid bodies separated from the mixture are transported farther as separated individual parts in substantially opposite conveying directions. A diverting device is provided that can at least partially divert the conveyed stream upstream of the retaining element.

Abstract: The invention relates to a separation system for a potato harvesting machine or a preparation machine for separating potatoes, or similar crops, from a mixture of clods, stones, and similar solid bodies. A conveying assembly is thereby utilized to feed the essentially compact mixture as a delivery flow, from where the mixture displaced into the area of at least one drop stage, and thereby influenced by way of a conveying means in the form of an air stream, can be separated. Thereafter, at least the harvested material and the solid bodies, respectively, can be moved on as individual separated goods, and can be moved out of the separation system. The system according to the invention is characterized in that subsequently to the drop stage bringing about a loosening of the mixture, at least one retaining element located opposite the falling separated goods and interacting with the at least one air stream is provided.

Abstract: A screen chain conveyor for a root crop harvesting machine has a support belt having belt ends and transverse conveying rods secured in the support belt. A belt fastener is provided that has connecting members attached to the belt ends, respectively. The belt fastener has an articulated connection connecting the connecting members. The articulated connection has a component pair and a seal adapted to prevent at least penetration of dirt particles into the component pair.