EP1311740B1 - Method and device for assembling, particularly for lengthening, a pipe or system of rods - Google Patents

Abstract

The invention relates to a method and device for assembling, particularly for lengthening, a pipe or system of rods (4, 5), in particular, of a drilling rod. According to the invention, an, in particular, pivotal lifting and positioning device (2) for receiving another pipe or rod element (4, 5) is provided on a holding device (1), for example, a support, in particular, for the driving or introducing device (11) of the pipe or system of rods (4, 5). For automatically connecting or screwing together abutting pipe or rod elements (4, 5), the driving or introducing device (11) and/or a separate turning device (10), which engages on the pipe or rod element (4, 5) that lengthens the existing pipe or system of rods, is/are provided in order to enable a further automation of the process of lengthening pipe or rod elements of this type.

Description

The present invention relates to a method for assembling, in particular extending, a pipe or linkage, in particular a drill string, and a the pipe or pipe surrounding cladding tube, wherein to achieve large pipe or rod lengths each with each other to be connected pipe or rod and Hüllrohrelemente on site after a release of a drive or insertion device and a substantially aligned arrangement the linkage and Hüllrohrelemente interconnected be, with the joining of adjoining Linkage elements by the drive or Insertion device, which on the existing linkage elongating linkage element is made, and to a device for assembling, in particular Extend, a pipe or linkage, in particular one Bohrgestänges, and one surrounding the pipe or rod Cladding tube, wherein on a holder, such as carriage, for the drive or insertion device of the tube or linkage a particular pivotable lifting and positioning for receiving another linkage and Hüllrohrelements is provided, wherein for a screw of adjoining linkage elements the drive or insertion device, which on the the existing linkage elongating linkage element attacks, is provided.

In connection with the production of drilling large Length using multi-part pipes or drill pipes it is known pipe or rod elements with Help of a feeding or Magaziniervorrichtung in a in essential with one already in a hole Pipe or linkage to bring aligned position, where subsequently, essentially by hand screwing of such additional extension elements with the existing pipe or rod elements he follows. Such feeding or Magaziniervorrichtungen are for example from DE-A 198 43 167, EP-B 0 527 460 or EP-A 0 942 146 known. Although with help Such known supply or handling devices a simplification in the positioning of such a great length and thus comparatively large weight extension elements possible will be unchanged by the requirement of a manual Connection of such pipe or rod parts, if necessary with the help of appropriate, by hand pressing tools, an increased work and time required. Furthermore, it must be considered that for example, for anchor or locking holes in production of a tunnel such works in the foremost, partially unprotected area of such degradation have been made, so that a corresponding high safety risk for the operator with such Work is connected. In addition, at Carrying out such work, in particular during tunneling to reckon with extremely cramped space conditions.

For automated connection of rod or pipe elements In addition, for example, in US-A 4 955 757, EP-A 0 685 630, EP-A 0 860 581, EP-A 0 No. 860,582 or EP-A 0 919 692 discloses the use of the customary rotary drive used for the drilling process proposed. Even with providing the drill pipe surrounding cladding or jacket tube is directly the Rotary drive used for a connection, resulting in that during the drilling process next to the drill string also be subjected to the cladding a Drehbeaufschlagung must and must therefore be solid. Furthermore, is disadvantageous that only one joint or coupled Extension of the drill string and the cladding with the known devices can be achieved.

The present invention is based on the above state of the art, a process and, a device for assembling, in particular lengthening a pipe or rod, in particular a drill pipe and a tube surrounding the drill pipe, the To provide, with which or which another Automation of the process of extension of linkage and cladding elements is possible. By such Automation is not just about simplification the handling but also at the same time Shortening of the extension of such pipes or Pole targeted labor and time required. Furthermore, it is based on a particular separate connection targeted by linkage elements and cladding elements.

To solve the above objects, a method of the beginning mentioned type essentially characterized that the drill string in a first connection step below Use of the drive or drilling device screwed is that and the surrounding the drill string cladding in a second bonding step using a separate rotating device over a continuous Rotary movement is screwed. Due to the fact that according to the invention not just feeding pipe extension elements or rods and sheaths with the help of appropriate Zufuhr- or magazine devices, but also according to the invention an automatic connection or screwing together subsequent pipe or rod elements and Cladding elements is made, it becomes possible on a manual manipulation to connect or extend such pipes or rods and cladding completely without. It is after a corresponding positioning and alignment of the to be connected Pipe or rod elements and cladding elements automatically the connection or screwing in providing a Rotary drive, for example, for a rotary impact drilling, immediately by the drive or insertion device for the linkage elements made and it becomes a separate Turning device used for the cladding tube elements, so that automatically a screwing and thus extension of a corresponding pipe or linkage and the cladding tube is achievable. It is thus especially in underground mining or at tunneling an increase in the security of Operating team scored, as dismantled in the foremost Range for example when setting anchor holes a longer stay for screwing such Linkage elements and cladding elements by the operator is no longer necessary. By providing the invention proposed, separate screw the cladding tube and the linkage can also be a corresponding Adaptation for automated screwing used to be provided separate drives, wherein In particular, it can be considered that the cladding tube optionally formed relatively thin-walled. One Such jacket or cladding tube, which at the same time introduced the production of the hole in the hole is used, for example, to subsequently a Fill the hole to allow it without breaking of surrounding material and thus a partial laying fear of drilling during the drilling process have to.

Furthermore, it is possible by the automation of the connection or Verschraubens total of labor and time reduce accordingly, as next to an automated feeder and positioning the extension elements immediately by, for example, on a carriage Drive or rotating devices a connection or screwing of the boom to be extended as well as the cladding tube he follows. In addition, through automation also possible errors concerning the Bolting or connecting direction of adjoining Turned off during manual operation, such errors especially in cramped Space in a manual screwing not be avoided or excluded with certainty can. Particularly important is the monitoring of the direction of rotation the drill string, as in any possibly Incorrect operation in the extension of the same one Loosening or loosening of the drill bit must be feared resulting in a complete removal of the piping and, where appropriate a complete reuse of the hole would result.

For a further simplification and acceleration of the connection the pipe or linkage elements to be extended is provided according to a further preferred embodiment, that before connecting the linkage and Hüllrohrelemente a centering of the linkage to be interconnected and cladding elements is made.

To connect both the usually centrally located Drill and the surrounding the drill string To allow cladding in an equally automated manner, is according to a further preferred embodiment suggested that centering the drill string in the cladding tube is made before connecting. By such a prior centering of the drill pipe in the cladding ensures that when feeding the each an extension element for the drill pipe and an extension element for the cladding existing Unit immediately an exact positioning of the individual elements to the elements already in the hole followed by a separate Connecting or screwing both the drill string as also the cladding tube by the drive or insertion device as well as the separate turning device made becomes.

To solve the above tasks is beyond a device of the type mentioned in essence characterized in that for screwing together subsequent cladding elements a separate Rotary device provided for a continuous rotational movement is. The automated connection or screwing of adjoining pipe or rod elements is inventively by the corresponding rotary drive made for the drill pipe, while for the extension of the cladding tube a corresponding, usually small-sized, separate rotating device is provided as for a screwing the optionally thin-walled cladding no excessive large forces must be applied.

To during the connecting process of the adjoining Cladding and rod elements moving the already in the hole located cladding and linkage to be able to avoid with certainty, if necessary Problems or uncertainties regarding centering and / or a complete connection or screwing the extension elements can result is according to a further preferred embodiment provided that in addition to the to be lengthened cladding tube and linkage engaging clamping device is provided. A Such clamping device can be used together with the lifting and Positioning device during the positioning process with the elongated pipe or linkage and cladding in engagement be brought to a safe grasp of the already located in the bore and cladding or linkage to ensure.

As indicated above, in a variety of cases when producing a borehole in particular for a Subsequent anchoring not just a drill pipe to Production of the hole and for insertion of the drilling tool but it is also an envelope or jacket tube provided. In this context is for a simultaneous lengthening of both the usually centered arranged drill string and the cladding tube proposed that at least one additional centering device for centering the drill string in the cladding tube is provided; as this another preferred embodiment corresponds to the device according to the invention. The Centering of the drill string in the cladding tube can hiebei preferred be simplified or facilitated by that the lifting and positioning a particular pivotable centering device is provided.

For a particularly simple mounting of the additional Turning device for the extension of the cladding tube in accordance small footprint and without interference or Impairment of the drive or insertion device for the linkage is according to a further preferred embodiment provided that a separate rotating device at one on the bracket, such as carriage, separately fixable support or support device can be fixed is and engageable with a cladding element is. By providing such a separately definable Support device for such a rotary device In addition, it becomes possible to use existing brackets, especially carriages, also to retrofit, so that existing drill carriages are not redesigned or be rebuilt, but for automation the screwing or connecting process in can be easily adapted.

For centering and clamping the cladding tube to be extended is preferred in this context, that at the support or support additionally a Centering and / or clamping device for gripping the is provided to be extended linkage or cladding tube. For a further simplification of the handling and in particular to reduce the space required after completion The extension during the drilling process is according to a further preferred embodiment proposed that the additional turning device in the longitudinal direction of the to be extended Cladding tube on the support or support device slidably disposed, wherein according to a particular preferred embodiment is proposed that for the Displacement of the rotating device on at the support or Support device mounted drive, in particular a cylinder piston unit, is provided.

To properly position for a lengthened and To enable centering of a cladding tube or linkage and during the Verschraubungsvorganges relative movements between the to be lengthened cladding or rod and to avoid the extension element as much as possible is according to a further preferred embodiment proposed that the support or support device to her facing away from the bracket, especially mount, away End with an additional mounting or anchoring device for anchoring in the material is formed, in which bring the cladding tube is. Such a holder or anchoring allows in particular in the manufacture of anchor bores in the field the working face of a tunnel a reliable anchoring both the support and support device and the Holder, in particular mount, on the one hand for the connection or extension process as well as for the subsequent one Drilling.

Fig. 1 eine schematische Seitenansicht einer erfindungsgemäßen Vorrichtung zur Durchführung des erfindungsgemäßen Verfahrens zum Zusammenbauen, insbesondere Verlängern, eines Rohrs bzw. Gestänges und eines Hüllrohrs;

Fig. 2 in einer schematischen Teilansicht in gegenüber Fig. 1 vergrößertem Maßstab im Schnitt entlang der Linie II-II die Hebe- bzw. Positioniereinrichtung der erfindungsgemäßen Vorrichtung gemäß Fig. 1; und

Fig. 3 in vergrößerter Darstellung teilweise im Schnitt einen Teilbereich der erfindungsgemäßen Vorrichtung umfassend eine gesonderte Drehvorrichtung sowie einer Klemm- und Zentriervorrichtung für das zu verlängernde Rohr bzw. Gestänge.

The invention will be explained in more detail with reference to embodiments schematically illustrated in the accompanying drawings. In this show:

1 shows a schematic side view of a device according to the invention for carrying out the method according to the invention for assembling, in particular lengthening, a pipe or linkage and a cladding tube;

Figure 2 is a schematic partial view in comparison with Figure 1 enlarged scale in section along the line II-II, the lifting or positioning of the device according to the invention shown in FIG. 1. and

Fig. 3 in an enlarged view partly in section a portion of the device according to the invention comprising a separate rotating device and a clamping and centering device for the pipe or linkage to be extended.

In Fig. 1 and 2 is schematically with 1 a bracket or Carriage of a drilling device, not shown, wherein at the carriage 1 a generally denoted by 2 hinged lifting and positioning hinged is with which to extend an already in introduced a schematically designated 3 material Pipe or linkage additional extension elements in Shape of a central drill pipe element 4 and a Drill 4 surrounding cladding element 5 are moved can.

As can be seen from FIG. 2, it is possible to use the lifting and positioning device a lifting of a pipe or rod element from the dashed lines with 4 'and 5' shown Position in which an arrangement of extension elements 4 or 5 takes place on the lifting and positioning device 2, in a 4 or 5 indicated, raised position via a corresponding pivot mechanism 6, whereupon subsequently a connection of the pipe or rod elements 4, 5 with already in the borehole 7 located Tube or linkage elements takes place.

As shown in the schematic representation of FIG. 1 further can be seen on the material or the Ortbrust 3 facing front section of the gun carriage 1 an additional Support or support device 8 stored, which in detail in Fig. 3 is shown. At this support or support device 8 is on the one hand a centering and / or Clamping device 9 stored and it further, as is clear will be apparent from Fig. 3, an additional Rotary drive 10 stored.

For an extension of the pipe or rod elements is in a first step after lifting the pipe or linkage elements 4, 5 in the illustrated in Fig. 2 erected position on the lifting and positioning 2 First connect the central drill pipe 4 made by the fact that on the side facing away from the working face 3 End schematically indicated with 11 drive or. Applicator device or drilling device 11 attacks, wherein by the force exerted by the drilling device 11 rotational movement a connection, in particular screwing, the drill string 4 is done.

After such automated screwing or Lengthening of the drill pipe 4 takes place via a schematic with 12 indicated displacement drive a move of the drill pipe 4 surrounding cladding tube 5 in the direction of the arrow 13 into the area of the additional rotary drive 10, as shown in Fig. 3 in more detail.

In Fig. 1, in addition to 19, the drill pipe 4th for example, surrounding a fork, on the lifting device 2 pivotally hinged centering indicated.

From Fig. 3 it is seen that the at the support or Support device 8 mounted clamping or centering device 9 the cladding tube 5 at the projecting from the working face 3 Section surrounds and holds, whereupon subsequently after feeding the cladding tube 5 according to the arrow 13 of FIG. 1 this by the additional rotary drive 10 is passed. The cladding tube 5 is in the additional Rotary drive 10 by suitable jaws or clamping devices detected and for connecting with the already present cladding element to a rotary motion through the rotary drive 10 is acted upon, for this rotational movement a schematically indicated with 14 engine provided is which, for example, a chain drive 15 the the drill pipe 4 surrounding cladding tube 5 to a rotary motion applied for a screwing.

From Fig. 3 is further apparent that the rotating device 10, for example, via a cylinder piston unit 16 in Meaning of the double arrow 17 in the longitudinal direction of the drill string 4 or of the cladding tube 5 on the support or support device 8 is movable to a proper screwing the cladding tube elements 5 by means of the rotary drive 10 to allow.

From FIGS. 1 and 3 it is further apparent that the support or supporting device 8 with an additional anchoring device 18 is designed to be a reliable Determine both the carriage 1 and the fixed thereto Supporting device 8 at the working face 3 for a targeted support of the drill string 4 and the cladding tube 5 to allow.

As can be clearly seen from the drawings, can be by both the clamping device 9 and the additional Rotary drive 10 supporting support or support device 8 also an existing carriage 1 easily for automated lengthening, in particular screwing retrofit the pipe or rod elements 4 and 5, respectively or adapt.

Claims (12)

1. A method for assembling, particularly extending, a tube or a rod assembly (4), in particular a drill rod assembly, and a jacket tube (5) surrounding the tube or rod assembly (4), wherein, in order to obtain large tube or rod assembly lengths, respective tube or rod assembly or jacket tube elements (4, 5) to be mutually connected are connected with one another at the face upon detachment of an actuation or introduction means (11) and substantial alignment of said rod assembly or jacket tube elements (4, 5), wherein the connection of adjoining rod assembly elements (4) is effected by, the actuation or introduction means (11), which contact the rod assembly element (4, 5) extending the existing tube or rod assembly, characterized in that the drill rod assembly (4) is screwed in a first connection step using the actuation or drilling means (11), and that the jacket tube (5) surrounding the drill rod assembly (4) is screwed in a second connection step using a separate rotation means (10) via a continuous rotational movement.
2. A method according to claim 1, characterized in that a centering of the rod assembly and jacket tube elements (4, 5) to be mutually connected is effected prior to connecting the rod assembly and jacket tube elements.
3. A method according to claim 1 or 2, characterized in that a centering of the drill rod assembly (4) within the jacket tube (5) is effected prior to connecting.
4. A device for assembling, particularly extending, a tube or rod assembly (4, 5), in particular a drill rod assembly, and a jacket tube (5) surrounding the tube or rod assembly (4), wherein a lifting and positioning means (2), in particular a pivotable lifting and positioning means, is arranged on a support means (1), for instance a bracket, provided for the actuation and introduction means (11) of the tube or rod assembly (4), to receive a further rod assembly and jacket tube element (4, 5), wherein the actuation or introduction means (11), which engage the rod assembly element (4) extending the existing rod assembly, are provided for a screwing of adjoining rod assembly elements (4), characterized in that a separate rotation means (10) for a continuous rotational movement is provided for screwing adjoining jacket tube elements (5).
5. A device according to claim 4, characterized in that a clamping means (9) engaging the jacket tube and rod assembly (4, 5) to be extended is additionally provided.
6. A device according to claim 4 or 5, characterized in that at least one additional centering means (19) is provided for the centering of the drill rod assembly (4) within the jacket tube (5).
7. A device according to claim 6, characterized in that a centering means (19), in particular a pivotable centering means, is provided on the lifting and positioning means (2).
8. A device according to any one of claims 4 to 7, characterized in that the separate rotation means (10) is capable of being fixed to a supporting means (8) separately fixable to the support or retention means (1), for instance bracket, and being engageable with a jacket tube element (5).
9. A device according to claim 8, characterized in that a centering and/or clamping means (9) is additionally provided on the supporting means (8) to seize the rod assembly or jacket tube (4, 5) to be extended.
10. A device according to claim 8 or 9, characterized in that the additional rotation means (10) is arranged on the supporting means (8) so as to be displaceable in the longitudinal direction of the jacket tube (5) to be extended.
11. A device according to claim 10, characterized in that a driving means (16), in particular a cylinder piston unit, is provided on the supporting means (8) to enable the displacement of said rotation means (10).
12. A device according to any one of claims 8 to 11, characterized in that the supporting means (8), on its end facing away from the support means, in particular bracket, is designed to include an additional holding or anchoring means (18) to be anchored or fixed in the material (3) in which the jacket tube (5) is to be introduced.

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