DEVICE FOR BORING WELL IN GROUND Russian patent published in 2004 - IPC

FIELD: building, particularly devices for trenchless well boring in ground for laying pipelines, cable lines and power lines.

SUBSTANCE: device has auger screw pivotally connected to conical working bit having auger blade secured to outer surface thereof. Direction of auger blade coiling is opposite to that of auger screw. Device has vibrator to generate annular oscillations arranged inside working bit so that a gap is formed in-between. Gear wheel with inner teeth is connected to inner surface of working bit, gear wheel with outer teeth is connected to outer vibrator surface. A number of engaging teeth of gear with outer teeth is less than that of gear with inner teeth. Vibrator body is connected by flexible coupling with auger screw rod.

EFFECT: simplified structure.

1 dwg