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Horizontal drilling unit for advancing underground pipes - has paired pistons and cylinders, worm-gear and drive shafts in one plane
Horizontal drilling unit for advancing underground pipes - has paired pistons and cylinders, worm-gear and drive shafts in one plane
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机译:用于推进地下管道的卧式钻井装置-在一个平面内具有成对的活塞和液压缸,蜗轮和传动轴
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摘要
A wormgear unit and hydraulic cylinders working in the pipe are used in the horizontal compression drilling unit for pressing steel pipes in the soil without trenching. Two hydraulic piston-and-cylinder assemblies (5, 5, 12, 12) at a time are mounted in a plane passing through the pressure ring (3) and on both sides of it, one on each side to press the pipe (2) forward. The other two serve for axial to-and-fro movement of the wormgear (17) and its drive. All the hydraulic assemblies, plus the shafts of the wormgear itself, lie in the same horizontal plane.
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