Ground drilling device and use of a ground drilling device

Abstract

A ground drilling device has a drilling carriage which defines a drill string axis, a drill rod magazine for a plurality of rod sections, and a transfer device for the transfer of a rod section between the drill rod magazine and a position of the rod section in the direction of the drill string axis. The ground drilling device also has a guide on a top of the drill rod magazine that is configured to guide movement of the transfer device.

Claims

1. A ground drilling device comprising: a drilling carriage which defines a drill string axis, a drill rod magazine for a plurality of rod sections, having first and second longitudinal ends, and a head piece at each of the ends arranged transverse to the lengthwise extension of the drill rod magazine, a transfer device for the transfer of a rod section between the drill rod magazine and a position of the rod section in the direction of the drill string axis, and a guide, configured to dictate a direction of movement of the transfer device, extending along a width of each head piece of the drill rod magazine the guide arranged transverse to the lengthwise extension of the drill rod magazine.

2. The ground drilling device according to claim 1, wherein the guide is configured for movement of the transfer device transversely to the drill string axis.

3. The ground drilling device according to claim 1, wherein each head piece is adapted for separate connection to the drilling device.

4. The ground drilling device according to claim 1, wherein the drill rod magazine is configured with no connection struts between the two head pieces.

5. The ground drilling device according to claim 1, wherein the transfer device comprises two gripping devices for grasping one of the rod sections.

6. The ground drilling device according to claim 1, further comprising multiple separating elements arranged on head pieces of the drill rod magazine, said multiple separating elements being staggered and extending along the drill string axis, and wherein the length by which the separating elements are staggered along the drill string axis is less than one-half of the length of the rod section.

7. The ground drilling device according to claim 1, wherein the guide has a greater extension transverse to the drill string axis than that of the drill rod magazine.

8. The ground drilling device of claim 1, wherein the guide being disposed on the drill rod magazine comprises the guide being connected to the drill rod magazine.

9. The ground drilling device of claim 8, wherein the guide being connected to the drill rod magazine comprises the guide being connected to a head piece of the drill rod magazine.

10. A process of ground drilling using a ground drilling device including a drilling carriage defining a drill string axis, and a drill rod magazine for a plurality of rod sections, having first and second longitudinal ends, and a head piece at each of the ends arranged transverse to the lengthwise extension of the drill rod magazine, comprising: transferring a rod section between the drill rod magazine and a position of the rod section in the direction of the drill string axis via a transfer device, a direction of movement of the transfer device being dictated by a guide extending along a width of each head piece, the guide arranged transverse to the lengthwise extension of the drill rod magazine.

11. The process of claim 10, wherein dictating the direction of movement of the transfer device by the guide comprises guiding the transfer device transversely to the drill string axis.

12. The process of claim 10, wherein each of the two head pieces is adapted for separate connection to the drilling device.

13. The process of claim 10, further comprising grasping, with two gripping devices of the transfer device, one of the rod sections.

14. The process of claim 10, further comprising arranging multiple separating elements on the two head pieces of the drill rod magazine, said multiple separating elements being staggered and extending along the drill string axis, and wherein the length by which the separating elements are staggered along the drill string axis is less than one-half of the length of the rod section.

15. The process of claim 10, wherein the guide is connected to the drill rod magazine.

16. The process of claim 15, wherein the guide is connected to a head piece of the drill rod magazine.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) The invention shall now be explained more closely with the aid of an exemplary embodiment presented in the drawing. The drawings show:

(2) FIG. 1 a region of a ground drilling device with a drill rod magazine and a drilling carriage and

(3) FIG. 2 a detail view of FIG. 1 with a guide and a gripping device.

DETAILED DESCRIPTION

(4) FIG. 1 shows a section of a ground drilling device with which an earth borehole can be made in the soil. The ground drilling device comprises a drilling carriage 1. The drilling carriage 1 defines a drill string axis 2, shown schematically in the figure in the form of a broken line. Along the drill string axis 2 a drive element 3 can move, being arranged on or at a sliding carriage. The drive element 3 may be connected to rod sections 4, which are arranged in a drill rod magazine 5, in order to connect them to the already introduced drill string and drive them into the soil. The drill rod magazine 5 comprises separating elements 11, which extend substantially along the drill string axis 2, offset from it. The separating elements 11 form compartments or rows situated alongside each other in order to hold the rod sections 4. The rod sections 4 can be arranged one above another in the compartments.

(5) In order to take up the rod sections 4 stored or stockpiled in the drill rod magazine 5 and transfer them to the drill string axis 2, there is provided a transfer device 6, having two gripping devices 7 with which a rod section 4 can be grasped. The gripping devices 7 can be moved vertically and horizontally, both transversely to and also in the longitudinal direction, parallel to the drill string axis. A guide 8 is arranged on the drill rod magazine 5, making possible a horizontal movement of the gripping devices 7. In this way, a rod section 4 can be moved transversely to the drill string axis 2. A guide 8 is connected respectively to a head piece 9 of the drill rod magazine 5 at the head end. In the embodiment represented in FIG. 1, there is a direct connection between the guide 8 and the head piece 9. The guide 8 is designed as a linear guide. One end each of a beam 10, on which the gripping devices 7 are arranged, is led in one of the guides 8.

(6) For the moving of the gripping devices 7 in the substantially vertical direction, the gripping devices 7 are led movably in height on the beam 10.

(7) FIG. 2 shows a detail view of FIG. 1 with an enlarged representation of the guide 8, being connected to the head piece 9. The guide 8 is arranged above the head piece 9 of the drill rod magazine 5. The transfer device 6, which comprises the gripping device 7, is movable transversely to the lengthwise extension of the drill rod magazine 5 by means of a driven gear 12, which meshes with a rack 13 of the guide 8.