Cabbage roll, harvesting unit and root crop harvester

Abstract

Cabbage roll for a harvesting unit (32), which is to be arranged at a front end (26) of a sieve belt (18) of the harvesting unit (32), with an outer surface (5) which is provided for contact with the sieve belt (18), which, viewed in a side view and in an unloaded state of the cabbage roll (2), has an at least approximately circular envelope and which includes a central axis (4) around which the surface (5) is moved during operation, characterized in that the cabbage roll (2) has an elastically deformable support structure arranged between the surface (5) and the central axis (4), due to which the surface (5) deflects in the direction of the central axis (4) when loaded.

Claims

[1] A herb roller for a harvesting unit (32), which is to be arranged at a front end (26) of a sieve belt (18) of the harvesting unit (32), with an outer surface (5) which is intended to bear against the sieve belt (18), which, when viewed in a side view and in an unloaded state of the herb roller (2), has an at least approximately circular envelope and which comprises a central axis (4) around which the surface (5) is moved during operation, characterized by that the herb roller (2) has an elastically deformable support structure arranged between the surface (5) and the central axis (4), due to which the surface (5) deflects in the direction of the central axis (4) when under load. [2] Cabbage roll according to claim 1, characterized by that the support structure is offset radially inwards from the surface (5). [3] Cabbage roll according to claim 1 or 2, characterized bythat the spring travel that can be covered by the surface (5) in the radial direction is at least 1 cm, preferably at least 1.5 cm. [4] Cabbage roll according to one of the preceding claims, characterized by that the surface (5) is part of an outer layer which is carried by the support structure. [5] Cabbage roll according to one of the preceding claims, characterized by that the support structure is at least partly formed by a porous material. [6] Cabbage roll according to one of the preceding claims, characterized by that the support structure is at least partly formed by a plastic material. [7] Cabbage roll according to claim 6, characterized by that the support structure in a side view is formed over the entire surface between the bearing core (12) of the herb roller (2) and the surface (5). [8] Cabbage roll according to one of claims 1 to 7, characterized by that the support structure is at least partly formed by a metal. [9] Cabbage roll according to one of the preceding claims, characterized by that the support structure has a plurality of struts (14) formed between the central axis (4) and the surface (5), in particular between the bearing core (12) and the surface (5). [10] Cabbage roll according to claim 9, characterized by that the struts (14) are curved from the inside to the outside. [11] Cabbage roll according to claim 10, characterized by that the struts (14) are strip-like. [12] Cabbage roll according to claim 11, characterized by that the strip-like struts (14) have a varying width when viewed in the direction transverse to the central axis (4). [13] Cabbage roll according to claim 11 or 12, characterized by that the surface (5) is formed integrally with the struts (14). [14] Lifting unit for a root crop harvesting machine, in particular a potato harvesting machine, with at least one lifting share (23) arranged on a frame (22), at least one screening belt (18) arranged downstream of the lifting share (23) in the direction of crop flow and at least one herb roller (2), wherein the screening belt (18) and the herb roller (2) form a contact surface (K) at a front end (26) of the screening belt (18), characterized by that the herb roller (2) is designed according to one of the preceding claims 1 to 13, in particular wherein the contact surface (K) extends at least 2, preferably at least 5 cm, in the direction of crop flow due to the elastically deformable support structure. [15] Harvesting unit according to claim 14, characterized by that the contact surface (K) extends over at least 5 cm in the material flow direction (F) and / or the spring travel between the contact surface (K) and the central axis (4) is at least 1 cm. [16] Harvesting unit according to one of the preceding claims 14 or 15, characterized by that the herb roller (2) is arranged to be displaceable in the crop flow direction (F) and / or transversely thereto by means of a support device (24). [17] Harvesting unit according to one of the preceding claims 14 to 16, characterized by that the herb roller (2) is passively driven via the sieve belt (18) during operation. [18] Harvesting unit according to one of claims 14 to 17, characterized by that the distance between the screen belt (18) and the central axis (4) on a straight line (28) perpendicular to the screen belt is less than the distance between the central axis (4) and an intersection point (P) of the straight line (28) and the surface (5) located above the central axis. [19] Root crop harvesting machine with a digging unit (32) according to one of the preceding claims 14 to 18.

Images