ROTATIONAL SUPPLY SYSTEM OF DRILLING MACHINE Russian patent published in 2013 - IPC E21B19/84 E21B47/04 

FIELD: oil and gas industry.

SUBSTANCE: rotational supply system includes a traverse of a supporting assembly with a rotator, which is arranged in the traverse, a traverse movement drive, a polyspast system with blocks and flexible connections forming the branches of the working and reverse travels. Blocks of the branch of the working travel are arranged in lower part of the mast, and blocks of the branch of the reverse travel - in upper one, and a depth sensor with an actuating element and a position fixation device of the actuating element is arranged in the block of the branch of reverse travel. A garland is meant for supply of blowdown agent to the drilling machine. Arrangement of the sensor in the block of the branch of reverse travel allows reducing the vibration action on the actuating element as much as possible, which leads to improvement of the sensor actuation accuracy.

EFFECT: improving the quality of blasting operations at the open pit and reducing explosive consumption owing to obtaining wells of the specified depth.

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