LASER ELECTRIC DRILL Russian patent published in 2012 - IPC E21B7/14 B23B45/02 

FIELD: construction.

SUBSTANCE: invention relates to a construction industry, in particular, to hand-held drills, and may be used to bore and drill holes in granite slabs and concrete walls. The laser electric drill comprises an electric motor, a reducer, a laser device, a drilling tool made in the form of an auger pipe, the lower part of which is equipped with a high-temperature crown. The electric motor and a planetary reduction gear are made with hollow shafts. The lower end part of the hollow shaft of the electric motor is connected to the upper end part of the hollow shaft of the planetary reduction gear, which is connected to the upper end part of the auger pipe. The high-temperature crown is arranged as cylindrical and is equipped with heat resistant cutters installed in the form of a crosspiece with the possibility to focus beams of the laser device to the upper part of the bottomhole via an internal cavity of the electric motor shaft, the cavity of the planetary reduction gear shaft and the auger pipe shaft.

EFFECT: invention provides for high speed of drilling.

3 dwg