Herrenknecht Ag

Patrick Michael Rennkamp

Thomas Joseph Edelmann

Frédéric Robert Cousseau

Timothée Couchoud

A drill head and a method having a body connected to a rotary drive of a drilling device, for loosening the ground at a face of the borehole, having a discharge device for discharging the loosened ground to a suction unit for suctioning a conveying medium, wherein the discharge device has at least one opening in the region of the drilling tools The at least one opening is connected to a suction box which has, at an end opposite the opening a connector opening for connecting to a conveying line, that acceleration exerted on the loosened ground in the region of the suction box moves loosened ground through the opening into the suction box wherein the loosened ground acquired by the conveying medium in the opening and/or in the suction box and is discharged.

Drill head and method for producing a vertical borehole in the ground

A device for advancing a cavity in underground mining, including a rotary drive, an axial shaft that is rotatable together with the rotary drive about a longitudinal axis, exactly one extraction drum that is rotatable about an drum rotational axis, and a connecting arrangement which is connected to the axial shaft and which supports the extraction drum, the connecting arrangement being configured in such a way that the drum rotational axis and the longitudinal axis lie in a plane, and are oriented at an acute angle with respect to one another in the advancing direction, in all operating positions during the advancement, characterized in that the extraction drum extends over at least an effective radius of the device in the radial direction of the device during advancement of the cavity.

Growing community of inventors

Munich, Georgia

Patrick Michael Rennkamp