DEVICE FOR CLUSTER DRILLING Russian patent published in 2009 - IPC E21B7/00 

FIELD: mining.

SUBSTANCE: invention refers to mining and is designed for cluster core drilling. The device consists of a consolidation pile, of a mounting jig, of a hydraulic telescopic lift, of an erecting hydro-crane containing a cantilever bar, of a swinging circle, of a telescopic hydraulic boom of the crane with an automatic kea of splitting of drilling tubes, and of a pumping-regulating assembly connected by means of a pipeline with hydraulic units. On the hydraulic lift there is a removable space frame whereon four crankshafts are arranged at corners; these crankshafts are connected with rods of double-sided actuating hydro-cylinders; also their bodies are pivotally connected with the space frame. At the lower ends of crankshafts there are fastened devices for securing drilling tubes. Automatic grips of tubes are arranged in points of drilling at a concrete platform. Pipe setbacks are installed in the zone of hydraulic cranes operation.

EFFECT: upgraded labour efficiency.

3 dwg, 1 ex