| 摘要 |
FIELD: mining industry. ^ SUBSTANCE: said invention relates to mining industry, in particular, to devices for separating cylinder-shaped stock from rock mass. For this purpose, the device comprises a tubular body connected to the drilling machine, which encircles the cylinder-shaped stock, and a cutting tool installed in horizontal cavity of the tubular body. The cutting tool is an abrasive curved element, rigidly mounted on the bottom end of a vertical rod located in the tubular body side vertical slot, while the rod top end is rigidly connected to the inner half-coupling of the free-wheel clutch. One end of the torsion spring is secured to the outer half-coupling of the free-wheel clutch, while the other end is secured to the tubular body cover. ^ EFFECT: separation of solid cylinder-shaped stock without a central hole from rock mass. ^ 2 dwg |
