MULTI-PURPOSE THRASHING DRUM Russian patent published in 2010 - IPC A01F12/20 

FIELD: agriculture.

SUBSTANCE: invention refers to agricultural machine building. The multi-purpose thrashing drum contains a housing formed by disks with projections mounted on a shaft. On the disk projections tooth-shaped working elements are mounted. At least two tooth-shaped working elements are equipped with streamline planks. The drum has corrugated vanes whose front part is mounted on planks (pivotally connected to the tooth-shaped working elements) with the help of a releasable connection. The device may operate in two versions. In case of the vanes front parts mounted on the drum disks one implements the version of the thrashing device with tooth-shaped working elements. When their front parts are disconnected from the disks the corrugated vanes are thrown back into the working position up to a stop against the teeth with the drum rotating due to centrifugal forces and resistive forces resulting from motion of crops being thrashed along the board. In such a case one implements the version of the beating thrashing device.

EFFECT: invention ensures highly efficient thrashing with any crops harvested by thrasher harvesters.

3 dwg