LONGITUDINAL COMPRESSING AND SHEARING PROPERTIES OF SILAGE CORN STALK IN NORTH CHINA PLAIN

This paper aimed to optimize working quality and reduce energy consumption of the feeding and shearing device of the silage harvester by making a comprehensive analysis and experiment on the longitudinal compressing and shearing properties of the silage corn stalks. The main factors affecting the shearing energy consumption were obtained by compressing and shearing tests on internodes and nodes of silage corn stalk. The results of three-level and three-factor central combination experiments showed that the overall shearing energy consumption for nodes was much higher than that for internodes. Compressing the silage corn stalk to some extent before shearing at the loading direction of 0 degrees and lower shearing speed was beneficial to saving energy.