MOBILE TELESCOPIC DRILLING DEVICE OF VERTICAL DRILLING Russian patent published in 2015 - IPC E21B7/02 E21B15/00 

FIELD: mining.

SUBSTANCE: drilling device comprises a transport base with a platform, a telescopic mast with a drive and hydraulic cylinder of lifting, removable supports, a carriage with a hydraulic cylinder. The telescopic mast consists of steps made of tubes inserted into one another and interconnected by means of cables and blocks, each of which has locking wedges. The first step of the telescopic mast is a housing-base on which the hydraulic cylinders or the hoisting tackle are mounted, the retractable hydraulic supports. Along the entire length of the steps an opening is made, reinforced by longitudinal reinforcement ribs, at the ends of the steps the transverse reinforcement ribs are welded, and on the outer surface of the second and subsequent steps opposite the locking wedges the locking plate are welded. Lifting of the second step of the telescopic mast is carried out by means of the hydraulic cylinders or the hoisting tackle and each subsequent step is lifted from the previous one by cables and blocks. Inside the last step of the telescopic mast by means of cables and blocks a carriage is moved with the locking wedges mounted on it, opposite which along the entire length of the inner side of the last step the locking plates are welded, and in the carriage or on the top of the last step of the telescopic mast the upper drive can be mounted, consisting of a reducer with the master gear, along the perimeter of which the high-speed gears are made, driven directly by multispeed electric motor or a hydraulic motor, and during mounting the upper drive at the top of the last step inside the carriage a swivel shackle is mounted.

EFFECT: increased efficiency of drilling operations.

21 dwg