DEVICE FOR TRENCHLESS LAYING OF PIPELINES BY PRICKING METHOD Russian patent published in 2014 - IPC E02F5/18 

FIELD: construction.

SUBSTANCE: device for trenchless pipeline laying by pricking method comprises the feeding mechanism from the guide frame with horizontal and vertical guide rollers with the possibility of their interaction with the outer surface of pipeline to be laid, and cable pulling winch, rod fixedly secured to the flange mounted on the front end towards the puncture of the laid pipeline, with the ball bearing installed on its end with possibility of supporting on it of the hollow working tip of conical form, inside the hollow working tip at its area of cylindrical shape, electric motor of circular rotation rod is installed relative to the axis of rotation rod with its support on the flange by means of seal assemblies. Stator of electric motor is fixed on the rod, and rotor - on the inner surface of horizontal area of the hollow working tip. Helical surface of auger-type is fixed on the outer surface of cone area of working tip.

EFFECT: simplification of the device design, increase of reliability and lifetime of its operation, reduction of value of the required force for pricking and energy consumption.

2 dwg