| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve a problem that threshing processing accuracy is deteriorated due to the low rigidity of an intermediate portion of a threshing cylinder, large vibration during rotation, and the displacement of the rotation.SOLUTION: In a thresher, a front first support member 35, an intermediate second support member 28 and a third support member 36 for supporting a threshing cylinder 21 are arranged at a front, a middle and a rear of a threshing cylinder shaft 27 arranged in a threshing chamber 22, a tapered part 23 having a taper shape whose outside diameter becomes large as progressing toward a rear end side and a cylinder part 24 having a cylinder shape which continues to the tapered part 23 are arranged at the threshing cylinder 21, a plurality of fore-and-aft plates 40 having a plurality of threshing teeth 20 are arranged at an external peripheral face of the cylinder part 24 at intervals in the circumferential direction of the cylinder part 24, and reinforcing members 37 for reinforcing the cylinder part 24 without having a direct connection relationship with the threshing cylinder shaft 37 are arranged at a front and a rear of the second support member 28 at the internal peripheral face of the cylinder part 24.</p> |
