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DPP—100型汽车钻钻杆加压装置，原设计为手摇绞车加压，为提高钻进效率，减轻体力劳动，我们在原卷筒轴上增添一套减速比为1∶30的蜗轮蜗杆机构，蜗杆轴伸出汽车平台总成右后侧，通过手轮（用汽车旧方向盘代用）操纵（见附图）。因蜗轮在卷筒轴上可自由转动，所以不影响卷筒的快速转动。当蜗轮上的离合爪A与卷筒轴上的离合爪B结合时，操纵手轮即可实现卷筒转动，比原设计省力得多。由于操作轻便，使用灵活，深受钻工同志欢迎。
DPP-100 type car drill pipe pressure device, the original design for hand winch compression, in order to improve drilling efficiency, reduce manual labor, we added a set of original reel shaft deceleration ratio of 1:30 worm gear mechanism , The worm shaft extends beyond the rear right of the vehicle platform assembly and is handled by a handwheel (replaced with a car’s old steering wheel) (see photo). Because the worm gear is freely rotatable on the spool shaft, it does not affect the rapid rotation of the spool. When the clutch claw A on the worm wheel engages with the clutch claw B on the reel shaft, the handle can be rotated by the manipulating hand wheel, which is much more labor-saving than the original design. Due to the operation of light, flexible use, welcomed by drilling comrades.