JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 1990, Vol. 14 ›› Issue (02): 68-73.doi: 10.3969/j.jssn.1000-2006.1990.02.011

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A STUDY OF SHEARING TIMBER BY HYDRAULIC SPHERICAL BLADES

Zeng Shanrong Zhang Jianhong   

  1. Department of Mechanical Engineering
  • Online:1990-06-18 Published:1990-04-18

Abstract: On the purpose of rationally designing a modern effective logging machine, when spherical shear blades cut pinus massoniana and pinus thunbergii, tke authors study the features of spherical shearing and derive formulas of shearing forces related to wood diameters and cutting speeds, as well as find the way, to diminish splitting.