DRILLING ROTARY-IMPACT MACHINE Russian patent published in 2005 - IPC

Abstract RU 2247212 C1

FIELD: mining industry.

SUBSTANCE: machine has conic toothed transfer with driving engine, vibration damper mounted on drill with cuter crown. Impact assembly is made in form of cross case, fixed at gear shaft of rotator, in aperture grooves of which impact balls or impact cylinders on support springs are mounted.

EFFECT: simplified construction.

4 dwg

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RU 2 247 212 C1

Authors

Judin V.G.

Dates

2005-02-27—Published

2003-10-01—Filed