| 摘要 |
A grain threshing device ( 10 ) comprising a receptacle ( 12 ) or receiving a portion of crop head. The receptacle ( 12 ) has a plurality of longitudinal ribs ( 30 ) on inner surfaces. One or more flexible arm members ( 28 ) are arranged on a rotating shaft ( 22 ) within the receptacle ( 12 ) such that the flexible arm members ( 28 ) strike the ribs ( 30 ) during rotation. The action of the flexible arm members ( 28 ) and ribs ( 30 ) on the crop head within the receptacle ( 12 ) separates the grain from the crop head.
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