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US 2024/0209699 A1Published application
Drill head for creating a borehole in the ground
AssigneeHerrenknecht AG
InventorsBoris JUNG, Tobias GEREARDT
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AssigneeHerrenknecht AG
InventorsBoris JUNG, Tobias GEREARDT
Estimating the term…
The invention relates to a drill head for creating a substantially vertical borehole in the ground, comprising: a body, which can be connected to a rotational drive of a drilling device; drilling tools, which are arranged on the body, for loosening the ground at a working face of the borehole; a suctioning means for leading away the loosened ground at the working face, which suctioning means can be connected to a pump, wherein the suctioning means comprises an opening region arranged on the body and having at least one opening in the region of the drilling tools at the working face. It is advantageous that the opening region has an elongate extent, that the at least one opening of the opening region is connected to a suction box, which has, at an end opposite the opening, a connection opening for connecting to the pump, that, in the opening region, the ground loosened by the drilling tools can be sucked through the opening into the suction box in a flow direction by means of the pump, that the suction box is tapered in width from the opening toward the connection opening, and that the height of the suction box increases from the opening toward the connection opening.
A drill head for creating a substantially vertical borehole in the ground, having a body which is able to be connected to a rotary drive of a drilling device, having drilling tools which for loosening the ground at a face of the borehole are disposed on the body, having a suction system which for discharging the loosened ground at the face is able to be connected to a pump, wherein the suction system has an opening region which is disposed on the body and has at least one opening in the region of the drilling tools at the face, characterized in that the opening region has an elongate extent;
A drill head for creating a substantially vertical borehole in the ground, having a body which is able to be connected to a rotary drive of a drilling device, having drilling tools which for loosening the ground at a face of the borehole are disposed on the body, having a suction system which for discharging the loosened ground at the face is able to be connected to a pump, wherein the suction system has an opening region which is disposed on the body and has at least one opening in the region of the drilling tools at the face, characterized in that, when viewed in the rotating direction of the drill head, at least two nozzles for dispensing a jet of a medium, preferably a liquid or air, are provided in front of the opening on the lower side of the drill head, said nozzles being directed toward the face.
A drill head for creating a substantially vertical borehole in the ground, having a body which is able to be connected to a rotary drive of a drilling device, having drilling tools which for loosening the ground at a face of the borehole are disposed on the body, having a suction system which for discharging the loosened ground at the face is able to be connected to a pump, wherein the suction system has an opening region which is disposed on the body and has at least one opening in the region of the drilling tools at the face, characterized in that at least one nozzle for dispensing a jet of a medium, preferably air or a liquid, is provided on the lower side of the drill head, and in that the jet has the effect of moving the loosened ground into a region of the face which during the rotation of the drill head is traversed by the opening.
Dependencies are inferred from the claim text.