DRILLING DEVICE AND METHOD FOR PRODUCING A BORE
2 Assignments
0 Petitions
Accused Products
Abstract
A boring apparatus for producing a bore within a support tube in the ground. The boring apparatus comprises a housing which is introducible into the support tube and is non-rotatably fixable to the support tube, a cutting device for removing ground material, a rotary drive for driving the cutting device in rotation and a feeding device, by way of which a flushing fluid can be fed into a region of the cutting device. Arranged above the cutting device is a receptacle, into which removed ground material is deliverable by way of the flushing fluid. Provided in the receptacle is at least one stirring element for mixing the removed ground material with the flushing fluid. The removed ground material is upwardly dischargeable out of the receptacle together with the flushing fluid by means of a discharging device. The invention also relates to a method for producing a bore in the ground.
7 Citations
20 Claims
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1-11. -11. (canceled)
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12. Drilling device for producing a bore inside a support tube in the ground with
a housing which can be inserted into the support tube and fixed in a torque-proof manner on the support tube, a cutting means for removing ground material, a rotary drive for driving the cutting means in a rotating manner, a feed means for feeding flushing liquid, a receiving container which is arranged above the cutting means and into which removed ground material can be conveyed, and a discharge means, with which the removed ground material can be discharged together with the flushing liquid in the upward direction from the receiving container, wherein in that the receiving container comprises a stirring chamber, in which at least one stirring element driven in a rotating manner is provided for stirring the removed ground material with the flushing liquid, between the cutting means and the at least one stirring element a conveying means is arranged, and in that through the feed means the flushing liquid can be fed into an area of the cutting means.
Specification