Būgno inercijos momento įtaka kūlimo ir grūdų separacijos procesams

Abstract

Combines perform four operations: cutting, threshing, separating, and cleaning. Acceptable grain losses from each operation limit the throughput capacity and performance of a combine. The objective of this research was to investigate the influence of inertia momentum of threshing cylinder on grain separation through concave. Grain damage is closely related to cylinder speed, cylinder clearance, and grain moisture content. Grain damage increased from 3.10+0.43% to 4.91+0.34% as the momentum of inertia of the ±sreshing cylinder was increased from 8.34 kg-m2 to 15.73 kg-m2. However as the momentum of inertia was greater the grain separation through concave increased about 7.7%, i.e. less of threshed grains thrown from the threshing unit on to straw walkers