Self-propelled combine harvester having an improved design for transferring harvested crop to the separating rotors

摘要

The invention relates to a self-propelled combine harvester having a ground drive assembly, a frame, working implements for picking up, conveying, processing and expelling the harvested crop, drive devices for driving at least one meshing and feed drum, which functions on the tangential flow principle. The feed drum feeds the harvested crop to the separating rotors, which function on the axial flow principle and are rotatably mounted in rotor housings. Conveying implements are mounted on the separating rotors. A rotor core of the separation rotors has a substantially cylindrical basic shape on the outer contour where the conveying implements are mounted. The rotor core tapers from narrow to wide in a direction away from the feed drum. Side panels are operatively mounted on the rotor housing in the frontal pickup region thereof to improve the transfer of the harvested crop from the feed drum to the rotor housings. The side panels are horizontal in the direction of crop flow and converge towards the associated separating rotors in proportion to the rotor core, such that a narrowing pickup zone will be formed in the direction of conveyance whereby only a sub-region of this pickup zone will be effectively swept by the conveying implements. Guide rails are directed upwardly at an acute angle and become increasingly elevated in the direction of conveyance, for imparting an upward, axially directed pulse to the harvested crop whereby the increasing elevation amplifies this pulse without thereby blocking the pickup zone in a frontal region. Dividing wedge for dividing the harvested crop into two paths, wherein the harvested crop glides over the dividing wedge towards the rotor housings and the long stemmed materials, such as stalks, are caught by the separating rotors and drawn into the corresponding rotor housing via the dividing wedge.