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 and under-vane elements forming projections. On the under-vane elements tooth-shaped working elements are mounted. At least two working elements are equipped with streamline planks. The drum has corrugated vanes whose front part is mounted on collapsible curved under-vane elements (pivotally connected to the housing under-vane elements). The device may operate in two versions. In case of the collapsible under-vane elements mounted on the drum housing in the idle position one implements the version of the thrashing device with tooth-shaped working elements. In case of the collapsible under-vane elements mounted on the drum housing in the working position one implements the version of the beating thrashing drum.

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

5 cl, 5 dwg