%0 Journal Article %T Some constructive solutions to improve the efficiency of the hammer zernoterok %A Boyko, A.. %A Morozovskaya, Z.. %K hammer crusher, sieve, chopping, durability, technical solution, perforation, particle %J Actual directions of scientific researches of the XXI century: theory and practice %D 2015 %N 3 %P 3 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov