Pobūgnio skersinės juostos įtaka kukurūzų burbuolės elgsenai spragilo smūgio poveikyje

Abstract

The study examines interaction between the corn ear, rasp bar and concave crossbar. Corn ears linear velocity was examined in seven parts. Grain separation also was monitored. Experiments was made in five positions of concave crossbar (0, 3, 6, 9, 12 mm), rasp bar was moving at speed of 14 m∙s-1. Laboratory studies showed that increasing concave crossbar height increases grain separation from pith. The biggest separation (examining the corn ear hits the 12 mm high concave crossbar) is equal to 79.70 ± 3.28%. Studies showed that corn ear pith disintegrates after impact of corn ear at 12 mm position concave crossbar, so it should not be used. Examination of other cases did not show much difference between the different tests. The influence of tested three concave crossbar heights (3, 6, 9 mm) on corn ears at the monitored speed characteristics is minimal.