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3QY-260型缓冲式圆盘整地机(以下简称缓冲式整地机)由林业部哈尔滨林业机械研究所研制,1985年9月通过部级技术鉴定,现已投入小批量生产。缓冲式整地机适用于坡度15°以下的大面积荒山荒地、采伐迹地的带状整地或人工促进更新。其工作原理是:将该机悬挂于J-50拖拉机之后,利用J-50的液压系统来控制缓冲式整地机的起落和工作机构——圓盘的入土深度。该机作业一次后,在地面形成两条宽50—80厘米,最大耕深25厘米的栽植带,经过调整后可形成两条占总整地面积25%以上的浅沟状天然下种带(或直播带)(见图1)。
3QY-260 buffer disc machine (hereinafter referred to as cushioning machine) by the Ministry of Forestry Harbin Forestry Machinery Research Institute developed in September 1985 through ministerial technical appraisal, has now been put into small batch production. Buffer-type land preparation machine for large areas of 15 degrees below the slope of the barren hills and land, cut strip land preparation or artificial promotion. Its working principle is: After hanging the machine on the J-50 tractor, use the hydraulic system of J-50 to control the landing and working mechanism of the cushioning machine, the penetration depth of the disc. After the aircraft is operated once, two planting belts with a width of 50-80 cm and a maximum depth of 25 cm are formed on the ground. After adjustment, two shallow groove-like natural belts (or more than 25% of the total land area) Live band) (see Figure 1).