FIELD: drilling.
SUBSTANCE: drilling machine is designed to drill holes in existing pipelines through which liquid and gaseous substances are transported under pressure. In a drilling machine, the rotating shaft is made detachable, consisting of a main shaft section and additional shaft sections. Its length can exceed the longitudinal size of the drilling machine, the design of which is highly reliable and easy to assemble and disassemble shaft sections, as well as their installation and fastening.
EFFECT: due to its small size and light weight, the drilling machine can be used in confined spaces of premises and excavations, as well as on existing underground gas and oil pipelines at different depths.
7 cl, 6 dwg
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