Medição da resistência ao corte do colmo de cana de açúcar com pêndulo duplo.

Abstract

Power consumption of cutting sugar cane stalk is high, measuring cutting resistance is therefore neaessary for impro ving cutting efficiency. Pendulum is the most sirnple device for measuring dynamic strength, but for a sirnple compact desi gn with high capacity of energy storage and irrrpact velocity - requirement a pair of pendulum with one torsional spring are used. The preliminary investigation revealed that the cut ting resistance is greatly effected by the cutter geometries, particularly the sharpness of cutter edge. The difference of cutting resistance between a sharpened hand cutter and the less sharpened commercial base cutter of mechanical harvester is three to six times, the power loss for which can not be overlooked.