Kuliamo kukurūzų srauto judėjimas tarpe tarp būgno ir pobūgnio

Abstract

Experimental results shown, that with the increase the momentum of inertia of the threshing cylinder the rotation speed was less shifting by variable load of threshing unit. The threshing crescent of the laboratory threshing unit was filmed using high speed camera Photron Fastcam 1024 PCI (2000 frames per second) through a transparent side panel. The cylinder peripheral speed was 14.7 ms-1. When threshed cobs were moved in threshing crescent perpendicular whit the cylinder shaft the average speed of cobs was 2.93 ms-1, and when parallel – 4.85 ms-1. It has been noted, from observation of high speed movie film of the threshing of corn, that the kernels once threshed encounter difficulty in passing through the concave. That is, the damage occurred whilst the kernels were mowing within the threshing crescent prior to passing the concave or from the threshing crescent. It is desirable to remove the kernels from the threshing crescent as soon as possible after threshing.