在以营林为基础的方针指导下，我国人工林面积逐年增多，年抚育间伐量也随之增大。目前以人畜为主进行抚育间伐的方式已不能满足间伐量逐年增长的需要。因此，必须实现抚育间伐作业机械化。轻型绞盘机是抚育间伐小集中集材的主要机械类型之一。用轻型绞盘机进行抚育伐小集中集 Under the guidance of the guideline of afforestation, the area of ​​planted forest in our country increases year by year, and the annual tending interval also increases. At present, the mode of tending thinning mainly by human beings and livestock has failed to meet the need of increasing annual thinning. Therefore, tending thinning operations must be mechanized. Lightweight winch machines are one of the main types of machinery for tending thinly-focused, centralized skids. With light winch machine tending small centralized set