THRESHER

摘要

PROBLEM TO BE SOLVED: To provide a thresher improving the threshing through-put by improving a structure of an inlet part of a second threshing cylinder in the thresher provided with a treating chamber having the internally installed second threshing cylinder communicating with a dust feeding port provided in the terminal part of a threshing chamber having an internally installed first threshing cylinder. SOLUTION: The threshing cylinder diameter of the second threshing cylinder facing to a dust feeding port part is composed of a small-diameter part. A screw provided on the peripheral surface of the small-diameter part is composed of a screw having a larger diameter than that of the large-diameter part of the second threshing cylinder at the rear and a screw having a smaller diameter than that of the screw having the larger diameter. The dust feeding port is composed as follows. The transportation upstream side thereof is wide and the transportation downstream side thereof is narrow. COPYRIGHT: (C)2005,JPO&NCIPI