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合江—1.5型冻土钻孔机(图1)同东方红—28或铁牛—55拖拉机配套,以完成冻土钻孔工艺为主,还兼用于暖土挖穴。钻孔用于爆破松动冻土,挖穴用于植树。该机具由机架、伸缩传动轴、齿轮箱、钻杆和钻头等部分组成(图2)。该机采用了单臂悬吊钻杆的方案。机架由悬挂臂和支臂组成,机架的一端和拖拉机的悬挂机构相联,另一端悬吊变速箱和钻杆。伸缩传动轴由两对万向联轴节和一组伸缩轴组成,传动轴一端同拖拉机动力输出轴联接,另一端联接于齿轮箱的水平轴端部。齿轮箱由一对锥齿轮组成,齿轮箱铰接在机架的一端。钻杆通过安全销装在齿轮箱的
Hejiang -1.5 type of permafrost drilling machine (Figure 1) with Dongfanghong -28 or tractor-iron tractor supporting, in order to complete the perforation of the main drilling technology, but also for the warm dug digging. Bored for drilling loose frozen soil, digging holes for planting trees. The machine from the rack, telescopic shaft, gear box, drill pipe and drill bits and other components (Figure 2). The machine uses a single-arm suspension rod program. The frame is composed of suspension arms and arms. One end of the frame is connected with the tractor’s suspension mechanism, and the other end is used to suspend the gearbox and the drill pipe. Telescopic drive shaft consists of two pairs of universal coupling and a set of telescopic shaft composition, one end of the drive shaft coupled with the tractor power output shaft, the other end is coupled to the gear box horizontal shaft end. The gear box consists of a pair of bevel gears, which are hinged to one end of the frame. Drill rods are securely pinned to the gearbox