| 摘要 |
PROBLEM TO BE SOLVED: To provide a threshing device capable of preventing grains from being scattered to outside of the machine together with waste straws in a simple constitution and reducing a load on a blower fan by suppressing the number of switching times of the rotation frequency of the blower fan in the threshing device including a control section configured to be able to change an opening degree of fins of an oscillation sorting body and the rotation frequency of the blower fan.SOLUTION: The threshing device includes: an oscillation sorting body 22 capable of adjusting a fin opening degree; a blower fan 23; a detection sensor 28 detecting a processing object amount; and a control section 50 controlling the fin opening degree of the oscillation sorting body 22 and the rotation frequency of the blower fan 23. The control section 50 is configured to increase the rotation frequency of the blower fan 23 when the processing object amount detected by the detection sensor 28 exceeds a fan speed increase value as a predetermined threshold and to increase the fin opening degree when the detected processing amount exceeds a fin adjustment value as a predetermined threshold, the fan speed increase value set to be larger than the fin adjustment value.SELECTED DRAWING: Figure 12 |
