论文部分内容阅读
前言(一)问题的提出近年来,森林工业发达国家(美、加、瑞典、苏、芬)大力推行伐区作业全盘机械化,研制出许多种完全消除手工劳动的自行式采伐机械(包括采伐联合机),使生产效率大为提高。这类机械的出现和应用,引起了广大木材采运工作者的重视。我国在1976年从芬兰引进了三种采伐机械(伐木集材机、打枝造材机、自装全载集材机),1980年又从美国万国收割机公司引进了10台自行式采伐机械(伐木归堆机、抓钩集材机、装车机)。林业部1978年曾组织研制林业通用底盘,哈尔滨林机厂于1980年已研制出抓钩集材机(160马力),
Foreword (I) Proposal of the Issue In recent years, developed industrialized countries (the United States, Canada, Sweden, the Soviet Union, Finland and Finland) vigorously promote the mechanization of cutting operations and have developed many kinds of self-propelled cutting machines that completely eliminate manual labor Machine), so that production efficiency greatly improved. The emergence and application of such machinery has aroused the attention of the majority of timber mining workers. In 1976, China imported three harvesting machines (luffing skidders, sticking machines and self-loading skidders) from Finland. In 1980, it introduced 10 self-propelled harvesting machines (Feller bunchers, grappling skidders, loading machines). Forestry Department in 1978 has organized the development of common forestry chassis, Harbin Lin Machinery Factory in 1980 has developed a grasping skidder (160 hp)