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在学习无产阶级专政理论的推动下,齐齐哈尔铁路局电务工程段为了提高电杆挖坑机械化水平,学习大庆先进经验,试制成一台螺旋式液压钻坑机。该钻坑机用东方红75马力拖拉机改装。钻杆的升降、起落以及支腿均用油压控制,钻杆旋转由拖拉机后部动力输出轴径链轮传动。平时钻杆可放倒在拖拉机上部,最高点3.6米,钻杆立起时全高6米。钻坑直径370毫米。适合于野外作业,夏季钻两米深的坑约1分钟左右(冬季尚未试验),较人工挖坑提高工效八至九倍。
Driven by the theory of dictatorship of the proletariat, the electric power engineering section of Qiqihar Railway Bureau tried to develop the mechanization level of electric pole digging and learned the advanced experience of Daqing to make a spiral hydraulic drilling pit machine. This drilling machine is modified with Dongfanghong 75 horsepower tractor. Drill pipe movements, as well as landing and landing legs with hydraulic control, drill pipe rotation by the rear of the tractor power output shaft diameter sprocket drive. Usually drill pipe can be placed in the upper part of the tractor, the highest point of 3.6 meters, the full height of the drill pipe stood 6 meters. Drilling pit diameter 370 mm. Suitable for fieldwork, summer drilling two meters deep pit about 1 minute (winter not yet tested), compared with artificial digging to improve work efficiency eight to nine times.