SELECTIVE CORN THRESHING APPARATUS Russian patent published in 2004 - IPC

FIELD: agricultural engineering, in particular, corn cob threshing equipment.

SUBSTANCE: apparatus has threshing cylinder and concave with threshing members made in the form of rods having round section. Trough-shaped rotary valve with arm and return spring is positioned at inlet end of working slot defined by threshing cylinder and concave. Threshing cylinder supports are fixed in concave sides so that threshing cylinder and concave are prevented from moving one relative another. Additional threshing member is mounted at outlet end of working slot between threshing cylinder and concave. Last threshing member of concave is positioned for displacement to provide for increasing of gaps between last and last-but-one threshing members and passage of large diameter corn cobs through gap without destructing corn cobs.

EFFECT: increased quality of threshing corn cobs and reduced damage to corn cobs.

5 dwg