ROTARY HEAD-DRILL Russian patent published in 1995 - IPC

Abstract RU 2039239 C1

FIELD: mining. SUBSTANCE: used in the unit is single-axis mounting of all components. Splined spindle is installed for axial motion relative to drive motor. Axial feed mechanism of drilling tool is made in form of a pair of hydraulic cylinders fastened to body of drive motor coaxial with it and spindle. Hydraulic cylinder rods are connected by means of cross-piece with free end of spindle. Axial load produced by working pistons of hydraulic cylinders is transmitted from spindle free end to drilling tool. EFFECT: higher efficiency. 4 dwg

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RU 2 039 239 C1

Authors

Krugljakov Jurij Izrailovich

Dates

1995-07-09—Published

1992-08-13—Filed