GRAIN DISCHARGE APPARATUS FOR COMBINED HARVESTER

摘要

PROBLEM TO BE SOLVED: To provide a grain discharge apparatus for a combined harvester, with which both a bad condition for rotating spiral bodies (32) to discharge grain and a bad condition for elastically deforming the spiral bodies (32) in the shaft center direction to change the pitches and the diameters of the spiral bodies (32). SOLUTION: In this grain discharge apparatus for a combined harvester, in which the spiral bodies (32) are built in auger cylinders (18a) and (25) for taking out grain in a grain tank (16), the spiral bodies (32) are divided into a plurality of parts in the shaft center direction and strechably arranged and an electric motor (29) being an expansion mechanism for expanding and contracting the auger cylinders (18a) and (25) is installed, the grain discharge apparatus is characterized in that the spiral bodies (32) are slid on the same shaft (18b) by the expansion and contraction of the auger cylinders (18a) and (25) so that the spiral bodies are made into a continuous spiral form when the auger cylinders (18a) and (25) are expanded and lapped when the auger cylinders (18a) and (25) are contracted.