| 摘要 |
A harvester-thresher combine includes two threshing and separating drums which are mounted in a common housing for rotation in the same sense about parallel axes. The axes may extend in planes which extend parallel to the direction of movement of the combine, and then the leading ends of the drums are conical and have an external helical projection thereon. A twist-inducing conveyor may extend at an angle to the direction of movement of the combine into a corresponding cutout in the common housing. The drums may have equal or unequal lengths and in the latter case they are so arranged that the trailing end portions form a discharging step registering with a discharge opening of the housing. However, the parallel axes of the drums may also be situated in planes extending transversely of the direction of movement of the combine, and then the circumferential wall of the common housing is provided with an inlet opening for the severed cereal plants at one of its ends, and with a discharge opening for the straw at its other end. A pre-threshing unit may be arranged upstream of the inlet of the common housing. |
