METHOD OF "CHISEL-FACE" SYSTEM TRANSFORMATION COEFFICIENT DETERMINATION Russian patent published in 2017 - IPC E21B44/00 

FIELD: mining.

SUBSTANCE: method of "chisel-face" system transformation coefficient determination, based on the representation of the chisel by a three-channel converter of mechanical and hydraulic powers into the groove, the first stage of the drilling process is the destruction of the face rock by the use of mechanical power, and the second stage of the deepening is cleaning the face from the fractured rocks by hydraulic power consumption. At the same time, the stages of destruction of the rock and the face cleaning from the destroyed rock are considered as a "chisel-face" system, formed of two series-connected converters: face rock failure transducer and the face cleaning transducer, while the "chisel-face" system operation is determined by the conversion coefficient determined from the mathematical expression.

EFFECT: ability to determine the best combination of technical parameters that provide the greatest mechanical drilling speed in specific geological conditions determined by the hardness of the rock.

2 cl, 1 dwg