Abstract
The authers investigated on the distribution of threshed materials under the concave-sieve of a threshing machine with self-feeder. The types of distribution of grains are shown at fig. 2, 3 and are determinated by feeding methods and properties of bundles. Main function of threshing is acted in the first 1/3 part of threshing cylinder. Wheats are threshed by higher effect (H) more than rice-plants.
Therefore, when we research on the problems of the winnower under concave-sieve, it is necessary to consider on the distribution of threshed materials, as above mentioned.
