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3W1-80型植树挖坑机是由山西雁北地区农机所设计、山西应县农机修造厂制造的,已通过省级鉴定。该机与铁牛-55型拖拉机配套,适用于坡度不大于10°的土质和土石地区挖坑。挖坑机主要由垂直起落机构、传动轴、变速箱、挖头、固定板等组成(如图)。机组由1人操作,挖坑一次成型,并可根据需要,向坑内回填一定数量的松土。该机的最大特点是,在挖坑过程中,垂直起落机构可保证挖头轴心线与拖拉机距离始终不变,并且始终和地面垂直,即挖头轴线相对地面定点且垂直,机
3W1-80 planting tree digging machine is designed by Shanxi Yanbei Agricultural Machinery Factory, Shanxi Agricultural Machinery Manufacturing Plant should be made, has passed the provincial appraisal. This machine is matched with the tractor of Tien Niu-55 and is suitable for pit digging in the soil and rock areas where the slope is not more than 10 °. Digging machine mainly by the vertical landing gear, transmission shaft, gearbox, digging head, fixed plate and other components (pictured). The unit is operated by one person and is once formed by digging a pit. A certain amount of loose soil can be backfilled into the pit as required. The most important feature of this machine is that during the digging process, the vertical lifting mechanism ensures that the distance between the axis of the digging head and the tractor is always the same and is always vertical to the ground, that is, the axis of the digging head is fixed and vertical to the ground,