FIELD: mining.
SUBSTANCE: drilling system includes a rotating drill column connected to a tractor unit and a controlled system of directed drilling, which is connected to the tractor unit and moved by means of it. Rotation of the drill column and/or the axial load transmitted with the drill column to the drill bit have been used for a power drive of the tractor unit and/or controlled system of directed drilling.
EFFECT: reduction of sticking and vibration risk of the drill column; increasing the drilling rate.
14 cl, 2 dwg
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