| 摘要 |
PROBLEM TO BE SOLVED: To provide a retractile grain unloader for combine harvester solving the problem that when a mobile conveying cylinder undergoes contractile operation during unloading grains out of the machine through a stationary conveying cylinder and the mobile conveying cylinder inserted into the outer circumference of the stationary conveying cylinder, grains in the mobile conveying cylinder are crushed under pressure to possibly produce damaged grains. SOLUTION: The retractile grain unloader for combine harvester includes a grain unloading cylinder and the mobile conveying cylinder 13 axially internally equipped with retractile front, rear and intermediate mobile conveying spirals 11, 10 and 12 and inserted into the outer circumference of the stationary conveying cylinder 8 axially internally equipped with a stationary conveying spiral 7 for conveying and unloading grains in a grain reserve tank 4. In this grain unloader, the mobile conveying cylinder 13 is provided with a grain unloading port 13a and an unloading shutter 13b, the grain unloading port 13a and the grain reserve tank 4 are joined each other via a connector 4b, and the grain reserve tank 4 is installed at the side of the mobile conveying cylinder 13. COPYRIGHT: (C)2004,JPO&NCIPI
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