| 摘要 |
PROBLEM TO BE SOLVED: To improve both separation accuracy and operation efficiency by a high-speed operation traveling. SOLUTION: This combine harvester is equipped with a separation control means 80 for operating a winnower air flow adjusting means 76 for increasing, decreasing and adjusting the air flow of a winnower, a sieve opening and closing adjusting means 72 for opening, closing and adjusting the aperture of a sieve, a dust control plate position adjusting means 64 for adjusting the position of a dust control plate in a threshing chamber and a traveling speed adjusting means 86 for changing a traveling speed based on the detected results of a second sensor 65 for detecting a second reduction amount and a waste straw flow rate detecting means 68 for detecting a straw waste amount in a treated material in the threshing chamber.
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