DEVICE FOR GROUND WELLING Russian patent published in 2008 - IPC E02F5/18 

FIELD: mining.

SUBSTANCE: invention relates to construction, particularly to the devices for trenchless ground welling and can be used in construction of pipelines, underground cable systems of communication and power lines. The device contains the auger screw, conical operating cap with the auger blade with coiling opposite to that at the auger screw. The auger screw and the conical operating cap are connected by bearing joint. Inside the conical cap, the circular vibrator is installed open at the rotation points and with the case connected to the spindle of the auger screw via compensating coupling. Inside the conical operating cap, the gearwheel with the internal teeth is fixed, and on the vibrator case, the gearwheel with less number of external meshing teeth is fixed. At the vibrator's pivot bolt, the conical cartridge which is connected by screw nut and spring to the internal cone of the half-coupling hub is fixed via dowel.

EFFECT: increased reliability and working life of the welling device compounds.

2 dwg, 2 cl