EP1860275B1 - Coupling means - Google Patents

Coupling means Download PDF

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Publication number
EP1860275B1
EP1860275B1 EP06008687A EP06008687A EP1860275B1 EP 1860275 B1 EP1860275 B1 EP 1860275B1 EP 06008687 A EP06008687 A EP 06008687A EP 06008687 A EP06008687 A EP 06008687A EP 1860275 B1 EP1860275 B1 EP 1860275B1
Authority
EP
European Patent Office
Prior art keywords
locking
coupling device
drill
supported
receiving socket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP06008687A
Other languages
German (de)
French (fr)
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EP1860275A1 (en
Inventor
Erwin Stötzer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
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Bauer Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to DE502006000913T priority Critical patent/DE502006000913D1/en
Priority to EP06008687A priority patent/EP1860275B1/en
Priority to AT06008687T priority patent/ATE398227T1/en
Priority to ES06008687T priority patent/ES2307248T3/en
Priority to PT06008687T priority patent/PT1860275E/en
Priority to CA002582125A priority patent/CA2582125A1/en
Priority to SG200702548-9A priority patent/SG136880A1/en
Priority to RU2007114756/03A priority patent/RU2370618C2/en
Priority to JP2007112516A priority patent/JP4657241B2/en
Priority to CN2007101011075A priority patent/CN101063403B/en
Priority to US11/790,558 priority patent/US20070277988A1/en
Publication of EP1860275A1 publication Critical patent/EP1860275A1/en
Application granted granted Critical
Publication of EP1860275B1 publication Critical patent/EP1860275B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer

Definitions

  • the invention relates to a coupling device for drill pipe, in particular for earth drilling apparatus, according to the preamble of claim 1.
  • a generic coupling device is from the EP-A-1 624 151 out.
  • This known coupling device has a sleeve-shaped receptacle for a tubular drilling tool, wherein cylindrical locking bolts or hook-shaped locking claws are provided on the outer circumference of the receptacle. These can engage in corresponding holes on the tubular drilling tool for locking an inserted tubular drilling tool. To lock the drilling tool to the receptacle, it is necessary to bring the drilling tool in an exact rotational position.
  • a similar locking device is the DE 100 23 467 C1 refer to.
  • a link control and an actuating rod locking bolt can be used on a recording radially into corresponding holes on an inserted drilling tool are introduced, with an axial and rotationally fixed connection is created.
  • a comparable locking device is, even from the EP-A-1 580 398 A1 forth.
  • a flat guide member for a guided introduction is provided on the outer rod.
  • the invention has for its object to provide a coupling device for drill pipe, with which a fast and reliable connection can be created.
  • the coupling device for drill pipe has a receiving sleeve for receiving a connection region of a drill string, wherein a locking device is provided with a locking element which is adjustably mounted between a release position and a locking position, in which engages the locking element in a corresponding recess of the connection area.
  • a preferred embodiment of the invention is that the locking device comprises a housing which is arranged on an outer side of the receiving sleeve, and in that a sliding element for adjusting the locking element is mounted in the housing.
  • the sliding element can be operated manually or by an actuatable actuator, such as a motor or a control cylinder.
  • the sliding element is designed as a pivotally mounted pin with a cam, which engages in a slanted backdrop in the housing.
  • a rotational movement can be converted into an axial adjusting movement. This mechanism allows good force application even with manual operation.
  • a pivot lever is provided for pivoting the bolt, which is connected to a rear portion of the bolt with this.
  • the pivoting lever can be used both for manual operation and be designed for actuation by means of a remote-controlled actuator.
  • the blocking element is slidably and resiliently mounted on the sliding element in the radial direction.
  • significant wear and tear such as notches and deformations, can arise, which only permit rough fits.
  • the special displaceable and resilient mounting of the blocking element on the displacement element itself allows a certain compensation, so that even in these cases a good locking is ensured.
  • axial webs are arranged on an inner side of the receiving sleeve, which can be brought into engagement with corresponding axial grooves of the connection region for producing a rotary connection.
  • This is a keyway profiling.
  • the locking element only has to ensure an axial securing.
  • the recess in the connection region can in this case be a circumferential groove, in particular a rectangular groove, in which a corresponding rectangular profile of the locking element engages.
  • the three locking means are provided, which are arranged evenly distributed on the outer circumference of the receiving sleeve.
  • the coupling device according to the invention is used in a drill with a drill drive for driving a drill pipe.
  • the receiving sleeve is attached to the output shaft of the drill drive.
  • the output shaft usually protrudes downwards, so that the coupling device according to the invention is arranged below the drill drive.
  • the drill drive is mounted on a carriage, which is guided displaceably on a mast.
  • the coupling device according to the invention can be adjusted with the carriage along the mast, so that the coupling device when inserting a new drill string element quickly and reliably provides a connection between the upper connection region of the newly inserted drill pipe and the drill drive.
  • the coupling device 10 has a sleeve-shaped receiving sleeve 12, on whose inner side Axialstege 28 are arranged to form a Keilnutprofiles. On the outside, three locking devices 14 are arranged offset by 120 ° to each other.
  • Each locking device 14 comprises a sleeve-shaped housing 18, in which an approximately rectangular locking element 16 is slidably mounted.
  • the front side of the rectangular locking element 16 is concave in accordance with the connection area to be locked.
  • a cylindrical, bolt-shaped sliding element 20 is mounted axially adjustable and rotatable in the housing 18.
  • an obliquely running groove is introduced, which forms a link 24.
  • a cam 22 which is fixedly arranged on the bolt-shaped sliding element 20.
  • the sliding element can be pivoted in the present embodiment by 180 °. Due to the interaction between the cam 22 and the gate 24, the sliding element is displaced axially.
  • the locking element 16 from a retracted release position, which in Fig. 1 is shown, in a locking position according to Fig. 2 adjusted.
  • the locking element 16 is resiliently mounted on the sliding element 20.
  • the locking element 16 has a central bore 30 and the sliding element 20 has a central pin 32.
  • a coil spring 34th arranged between the bore 30 and the pin 32, which pushes the sliding member 20 and the locking element 16 apart.
  • a screw bolt 36 is arranged with a stop nut.
  • connection portion 62 which can be welded to the free end of a drill string.
  • the connection region 62 has axial grooves 66, which correspond to the axial webs 28 on the inside of the receiving sleeve 12 in order to form a splined connection.
  • annular groove is formed on the connection region 62 as a recess 64.
  • the width of the groove corresponds to the width of the locking elements 16, so that they can engage in the recess 64 to form an axial securing.
  • Fig. 5 the arrangement of the coupling device 10 according to the invention is shown on a drill 70.
  • the drill 70 has a mast 78 along which a carriage 76 is slidably guided and driven.
  • a drill drive 72 is mounted, which consists of a motor and a flanged gear.
  • the receiving sleeve 12 of the coupling device 10 is welded.
  • this has the connection region 62, which in connection with Fig. 4 has been described.
  • a rotationally fixed connection is achieved by the mutually corresponding Keilnutprofile, while an axial securing is achieved by the locking elements 16 of the coupling device 10.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Seal Device For Vehicle (AREA)
  • Physical Deposition Of Substances That Are Components Of Semiconductor Devices (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Pens And Brushes (AREA)
  • Massaging Devices (AREA)

Abstract

Coupling device for a boring rod (Bohrgestange, sic) with a receiving coupling (12) for reception of a connection region of the boring rod, at least one locking device (14) with a locking element (16), which is supported between a release position and a locking position, and in which the locking element (16) engages with a corresponding recess in the connection region. An independent claim is included for a boring unit.

Description

Die Erfindung betrifft eine Kupplungsvorrichtung für Bohrgestänge, insbesondere für Erdbohrgeräte, gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a coupling device for drill pipe, in particular for earth drilling apparatus, according to the preamble of claim 1.

Es ist bekannt, einzelne Bohrstangen eines Bohrgestänges mittels Schraubbolzen miteinander zu verbinden. Dies sorgt für eine zuverlässige stabile Drehverbindung. In gleicher Weise wird eine Verbindung des Bohrgestänges zu einem Bohrantrieb geschaffen. Allerdings ist diese Art der Verbindung sehr zeitaufwändig.It is known to connect individual drill rods of a drill string by means of bolts together. This ensures a reliable stable rotary connection. In the same way a connection of the drill string is created to a drill drive. However, this type of connection is very time consuming.

Eine gattungsgemäße Kupplungsvorrichtung geht aus der EP-A-1 624 151 hervor. Diese bekannte Kupplungsvorrichtung weist eine hülsenförmige Aufnahme für ein rohrförmiges Bohrwerkzeug auf, wobei am Außenumfang der Aufnahme zylindrische Verriegelungsbolzen oder hakenförmige Verriegelungskrallen vorgesehen sind. Diese können zur Verriegelung eines eingeführten rohrförmigen Bohrwerkzeuges in entsprechende Löcher am rohrförmigen Bohrwerkzeug eingreifen. Zur Verriegelung des Bohrwerkzeuges an der Aufnahme ist es erforderlich, das Bohrwerkzeug in eine exakte Drehposition zu bringen.A generic coupling device is from the EP-A-1 624 151 out. This known coupling device has a sleeve-shaped receptacle for a tubular drilling tool, wherein cylindrical locking bolts or hook-shaped locking claws are provided on the outer circumference of the receptacle. These can engage in corresponding holes on the tubular drilling tool for locking an inserted tubular drilling tool. To lock the drilling tool to the receptacle, it is necessary to bring the drilling tool in an exact rotational position.

Eine ähnliche Verriegelungseinrichtung ist der DE 100 23 467 C1 zu entnehmen. Mittels einer Kulissensteuerung und einer Betätigungsstange können Riegelbolzen an einer Aufnahme radial in entsprechende Löcher an einem eingeschobenen Bohrwerkzeug eingebracht werden, wobei eine axiale und drehfeste Verbindung geschaffen wird.A similar locking device is the DE 100 23 467 C1 refer to. By means of a link control and an actuating rod locking bolt can be used on a recording radially into corresponding holes on an inserted drilling tool are introduced, with an axial and rotationally fixed connection is created.

Eine vergleichbare Verriegelungseinrichtung geht, auch aus der EP-A-1 580 398 A1 hervor. An der Außenstange ist ein flacher Führungsteil für ein geführtes Einbringen vorgesehen.A comparable locking device is, even from the EP-A-1 580 398 A1 forth. On the outer rod, a flat guide member for a guided introduction is provided.

Der Erfindung liegt die Aufgabe zugrunde, eine Kupplungsvorrichtung für Bohrgestänge anzugeben, mit welcher eine schnelle und zugleich zuverlässige Verbindung geschaffen werden kann.The invention has for its object to provide a coupling device for drill pipe, with which a fast and reliable connection can be created.

Die Aufgabe wird nach der Erfindung durch eine Kupplungsvorrichtung mit den Merkmalen des Anspruchs 1 gelöst. Bevorzugte Ausführungsformen sind in den abhängigen Ansprüchen angegeben.The object is achieved according to the invention by a coupling device with the features of claim 1. Preferred embodiments are given in the dependent claims.

Die erfindungsgemäße Kupplungsvorrichtung für Bohrgestänge weist eine Aufnahmemuffe zur Aufnahme eines Anschlussbereiches eines Bohrgestänges auf, wobei eine Verriegelungseinrichtung mit einem Riegelelement vorgesehen ist, welches zwischen einer Freigabeposition und einer Verriegelungsposition verstellbar gelagert ist, in welcher das Riegelelement in eine korrespondierende Ausnehmung des Anschlussbereiches eingreift. Mit der erfindungsgemäßen Kupplungsvorrichtung ist eine schnelle halb- oder vollautomatische Kupplung mit einem Bohrgestänge möglich. Dies vereinfacht und beschleunigt den Arbeitsvorgang beim Bohren.The coupling device for drill pipe according to the invention has a receiving sleeve for receiving a connection region of a drill string, wherein a locking device is provided with a locking element which is adjustably mounted between a release position and a locking position, in which engages the locking element in a corresponding recess of the connection area. With the coupling device according to the invention is a fast semi or fully automatic coupling with a drill pipe possible. This simplifies and speeds up the drilling process.

Eine bevorzugte Ausführungsform der Erfindung besteht darin, dass die Verriegelungseinrichtung ein Gehäuse aufweist, welches an einer Außenseite der Aufnahmemuffe angeordnet ist, und dass in dem Gehäuse ein Schiebeelement zum Verstellen des Riegelelementes gelagert ist. Hierdurch wird eine stabile und zuverlässige Betätigung der erfindungsgemäßen Kupplungsvorrichtung erreicht.A preferred embodiment of the invention is that the locking device comprises a housing which is arranged on an outer side of the receiving sleeve, and in that a sliding element for adjusting the locking element is mounted in the housing. As a result, a stable and reliable operation of the coupling device according to the invention is achieved.

Das Schiebeelement kann dabei manuell oder durch ein betätigbares Stellorgan, wie einen Motor oder einen Stellzylinder, betätigt werden.The sliding element can be operated manually or by an actuatable actuator, such as a motor or a control cylinder.

Eine besonders vorteilhafte Ausführungsform ergibt sich nach der Erfindung dadurch, dass das Schiebeelement als ein verschwenkbar gelagerter Bolzen mit einer Nocke ausgebildet ist, welche in eine schräg verlaufende Kulisse in dem Gehäuse eingreift. Durch diesen Nockenmechanismus kann eine Drehbewegung in eine axiale Stellbewegung umgesetzt werden. Dieser Mechanismus erlaubt eine gute Kraftaufbringung auch bei manueller Betätigung.A particularly advantageous embodiment results according to the invention in that the sliding element is designed as a pivotally mounted pin with a cam, which engages in a slanted backdrop in the housing. Through this cam mechanism, a rotational movement can be converted into an axial adjusting movement. This mechanism allows good force application even with manual operation.

Hierzu ist es nach der Erfindung bevorzugt, dass zum Verschwenken des Bolzens ein Schwenkhebel vorgesehen ist, der an einem hinteren Bereich des Bolzens mit diesem verbunden ist. Entsprechend der Länge des Schwenkhebels kann in einfacher Weise ein entsprechend großes Drehmoment aufgebracht werden, was für eine zuverlässige Verriegelung vorteilhaft ist. Der Schwenkhebel kann sowohl für eine manuelle Betätigung als auch für eine Betätigung mittels eines ferngesteuerten Stellorganes ausgebildet sein.For this purpose, it is preferred according to the invention that a pivot lever is provided for pivoting the bolt, which is connected to a rear portion of the bolt with this. According to the length of the pivot lever, a correspondingly large torque can be applied in a simple manner, which is advantageous for a reliable locking. The pivoting lever can be used both for manual operation and be designed for actuation by means of a remote-controlled actuator.

Nach der Erfindung ist es weiterhin bevorzugt, dass das Sperrelement an dem Schiebeelement in radialer Richtung verschiebbar und federnd gelagert ist. Bei der Benutzung von Bohrgestängeelementen können erhebliche Abnutzungserscheinungen, wie Kerben und Verformungen, entstehen, welche nur grobe Passungen erlauben. Auch besteht die Gefahr, dass beispielsweise Erdmaterial und Gestein auf den Anschlussbereich des Bohrgestänges gelangen kann, so dass eine Verriegelung nur schwer möglich ist. Die spezielle verschiebbare und federnde Lagerung des Sperrelementes auf dem Verschiebeelement selbst erlaubt eine gewisse Kompensation, so dass auch in diesen Fällen eine gute Verriegelung gewährleistet ist.According to the invention, it is further preferred that the blocking element is slidably and resiliently mounted on the sliding element in the radial direction. When using drill pipe elements, significant wear and tear, such as notches and deformations, can arise, which only permit rough fits. There is also the danger that, for example, earth material and rock can reach the connection area of the drill pipe, so that it is difficult to lock. The special displaceable and resilient mounting of the blocking element on the displacement element itself allows a certain compensation, so that even in these cases a good locking is ensured.

Für eine gute Drehverbindung ist es erfindungsgemäß, dass an einer Innenseite der Aufnahmemuffe Axialstege angeordnet sind, welche zur Erzeugung einer Drehverbindung mit korrespondierenden Axialnuten des Anschlussbereiches in Eingriff bringbar sind. Dies ist eine Keilnutprofilierung. Durch ein axiales zusammenschieben wird so eine stabile hochfeste Drehverbindung geschaffen. In diesem Fall muss das Riegelelement lediglich eine Axialsicherung gewährleisten. Die Ausnehmung im Anschlussbereich kann in diesem Falle eine umlaufende Nut, insbesondere eine Rechtecknut sein, in welche ein entsprechendes Rechteckprofil des Riegelelementes eingreift.For a good rotary connection, it is inventively that axial webs are arranged on an inner side of the receiving sleeve, which can be brought into engagement with corresponding axial grooves of the connection region for producing a rotary connection. This is a keyway profiling. By pushing together axially so a stable high-strength rotary joint is created. In this case, the locking element only has to ensure an axial securing. The recess in the connection region can in this case be a circumferential groove, in particular a rectangular groove, in which a corresponding rectangular profile of the locking element engages.

Für eine besonders stabile Verbindung ist es nach der Erfindung vorteilhaft, das drei Verriegelungseinrichtungen vorgesehen sind, welche gleichmäßig verteilt am Außenumfang der Aufnahmemuffe angeordnet sind.For a particularly stable connection, it is advantageous according to the invention, the three locking means are provided, which are arranged evenly distributed on the outer circumference of the receiving sleeve.

Bevorzugt wird die erfindungsgemäße Kupplungsvorrichtung bei einem Bohrgerät mit einem Bohrantrieb zum Antreiben eines Bohrgestänges eingesetzt.Preferably, the coupling device according to the invention is used in a drill with a drill drive for driving a drill pipe.

Vorteilhafterweise ist dabei die Aufnahmemuffe an der Ausgangswelle des Bohrantriebes angebracht. Bei Erdbohrgeräten ragt die Ausgangswelle üblicherweise nach unten, so dass die erfindungsgemäße Kupplungsvorrichtung unterhalb des Bohrantriebes angeordnet ist.Advantageously, the receiving sleeve is attached to the output shaft of the drill drive. In Erdbohrgeräten the output shaft usually protrudes downwards, so that the coupling device according to the invention is arranged below the drill drive.

Weiterhin ist es erfindungsgemäß, dass der Bohrantrieb an einem Schlitten gelagert ist, welcher an einem Mast verschiebbar geführt ist. Bei dieser Anordnung kann die erfindungsgemäße Kupplungsvorrichtung mit dem Schlitten entlang des Mastes verstellt werden, so dass die Kupplungsvorrichtung beim Einsetzen eines neuen Bohrgestängeelementes schnell und zuverlässig eine Verbindung zwischen dem oberen Anschlussbereich des neu eingesetzten Bohrgestänges und dem Bohrantrieb sorgt.Furthermore, it is according to the invention that the drill drive is mounted on a carriage, which is guided displaceably on a mast. In this arrangement, the coupling device according to the invention can be adjusted with the carriage along the mast, so that the coupling device when inserting a new drill string element quickly and reliably provides a connection between the upper connection region of the newly inserted drill pipe and the drill drive.

Die Erfindung wird anhand von Ausführungsbeispielen weiter erläutert, welche schematisch in den beigefügten Zeichnungen dargstellt sind. In den Zeichnungen zeigen:

Fig. 1
eine teilgeschnittene Ansicht einer erfindungsgemäßen Kupplungsvorrichtung in Freigabeposition;
Fig. 2
eine Teilansicht der Kupplungsvorrichtung gemäß Fig. 1 in Verriegelungsposition;
Fig. 3
eine Seitenansicht der Kupplungsvorrichtung von Fig. 1 und Fig. 2;
Fig. 4
einen Anschlussbereich eines Bohrgestänges und
Fig. 5
eine Teilansicht eines Bohrgerätes mit der erfindungsgemäßen Kupplungsvorrichtung.
The invention will be further explained by means of exemplary embodiments, which are schematically illustrated in the attached drawings. In the drawings show:
Fig. 1
a partially sectioned view of a coupling device according to the invention in the release position;
Fig. 2
a partial view of the coupling device according to Fig. 1 in locking position;
Fig. 3
a side view of the coupling device of Fig. 1 and Fig. 2 ;
Fig. 4
a connection area of a drill pipe and
Fig. 5
a partial view of a drill with the coupling device according to the invention.

Der Aufbau und die Funktion einer erfindungsgemäßen Kupplungsvorrichtung wird anhand der Figuren 1 bis 3 erläutert. Die Kupplungsvorrichtung 10 weist eine hülsenförmige Aufnahmemuffe 12 auf, an deren Innenseite Axialstege 28 zum Bilden eines Keilnutprofiles angeordnet sind. An der Außenseite sind drei Verriegelungseinrichtungen 14 um 120° zueinander versetzt angeordnet.The structure and function of a coupling device according to the invention will be described with reference to FIGS. 1 to 3 explained. The coupling device 10 has a sleeve-shaped receiving sleeve 12, on whose inner side Axialstege 28 are arranged to form a Keilnutprofiles. On the outside, three locking devices 14 are arranged offset by 120 ° to each other.

Jede Verriegelungseinrichtung 14 umfasst ein hülsenförmiges Gehäuse 18, in welchem ein etwa rechteckiges Riegelelement 16 verschiebbar gelagert ist. Die Vorderseite des rechteckigen Riegelelementes 16 ist konkav entsprechend dem zu verriegelnden Anschlussbereich ausgebildet. Weiterhin ist im Gehäuse 18 ein zylindrisches, bolzenförmiges Schiebeelement 20 axial verstellbar und verdrehbar gelagert. Im Gehäuse 18 ist eine schräg verlaufende Nut eingebracht, welche eine Kulisse 24 bildet. In die Kulisse 24 greift ein Nocken 22 ein, welcher fest an dem bolzenförmigen Schiebeelement 20 angeordnet ist. Mittels eines Schwenkhebels 26, welcher an dem aus dem Gehäuse 18 herausragenden Ende des Schiebeelementes 20 befestigt ist, kann das Schiebeelement im vorliegende Ausführungsbeispiel um 180° verschwenkt werden. Aufgrund des Zusammenwirkens zwischen der Nocke 22 und der Kulisse 24 wird das Schiebeelement axial verschoben. Hierdurch wird das Riegelelement 16 von einer rückgezogenen Freigabeposition, welche in Fig. 1 dargestellt ist, in eine Verriegelungsposition gemäß Fig. 2 verstellt.Each locking device 14 comprises a sleeve-shaped housing 18, in which an approximately rectangular locking element 16 is slidably mounted. The front side of the rectangular locking element 16 is concave in accordance with the connection area to be locked. Furthermore, a cylindrical, bolt-shaped sliding element 20 is mounted axially adjustable and rotatable in the housing 18. In the housing 18, an obliquely running groove is introduced, which forms a link 24. In the gate 24 engages a cam 22, which is fixedly arranged on the bolt-shaped sliding element 20. By means of a pivoting lever 26 which is fixed to the protruding from the housing 18 end of the sliding element 20, the sliding element can be pivoted in the present embodiment by 180 °. Due to the interaction between the cam 22 and the gate 24, the sliding element is displaced axially. As a result, the locking element 16 from a retracted release position, which in Fig. 1 is shown, in a locking position according to Fig. 2 adjusted.

Das Riegelelement 16 ist an dem Schiebeelement 20 federnd gelagert. Hierzu weist das Riegelelement 16 eine mittige Bohrung 30 und das Schiebelement 20 einen mittigen Zapfen 32 auf. Zwischen der Bohrung 30 und dem Zapfen 32 ist eine Spiralfeder 34 angeordnet, welche das Schiebeelement 20 und das Riegelelement 16 auseinanderdrückt. Zur Begrenzung des Schiebeweges ist ein Schraubbolzen 36 mit einer Anschlagsmutter angeordnet.The locking element 16 is resiliently mounted on the sliding element 20. For this purpose, the locking element 16 has a central bore 30 and the sliding element 20 has a central pin 32. Between the bore 30 and the pin 32 is a coil spring 34th arranged, which pushes the sliding member 20 and the locking element 16 apart. To limit the sliding path, a screw bolt 36 is arranged with a stop nut.

In Fig. 4 ist schematisch ein Anschlussbereich 62 dargestellt, welcher am freien Ende eines Bohrgestänges angeschweißt werden kann. Der Anschlussbereich 62 weist Axialnuten 66 auf, welche zur Bildung einer Keilnutverbindung mit den Axialstegen 28 an der Innenseite der Aufnahmemuffe 12 korrespondieren. Zum Eingriff in das Riegelelement 16 ist als eine Ausnehmung 64 eine ringförmige Nut am Anschlussbereich 62 ausgebildet. Die Breite der Nut entspricht der Breite der Riegelelemente 16, so dass diese zur Bildung einer Axialsicherung in die Ausnehmung 64 eingreifen können.In Fig. 4 schematically a connection portion 62 is shown, which can be welded to the free end of a drill string. The connection region 62 has axial grooves 66, which correspond to the axial webs 28 on the inside of the receiving sleeve 12 in order to form a splined connection. To engage in the locking element 16, an annular groove is formed on the connection region 62 as a recess 64. The width of the groove corresponds to the width of the locking elements 16, so that they can engage in the recess 64 to form an axial securing.

In Fig. 5 ist die Anordnung der erfindungsgemäßen Kupplungsvorrichtung 10 an einem Bohrgerät 70 dargestellt. Das Bohrgerät 70 weist einen Mast 78 auf, entlang welchem ein Schlitten 76 verschiebbar geführt und angetrieben ist. An dem Schlitten ist ein Bohrantrieb 72 gelagert, welcher aus einem Motor und einem angeflanschten Getriebe besteht. An einer Ausgangswelle 74 des Bohrantriebes 72 ist die Aufnahmemuffe 12 der Kupplungsvorrichtung 10 angeschweißt. Zum Kuppeln eines Bohrgestänges 60 weist dieses den Anschlussbereich 62 auf, welcher vorausgehend im Zusammenhang mit Fig. 4 beschrieben worden ist. Eine drehfeste Verbindung wird durch die miteinander korrespondierenden Keilnutprofile erreicht, während eine Axialsicherung durch die Riegelelemente 16 der Kupplungsvorrichtung 10 erreicht wird.In Fig. 5 the arrangement of the coupling device 10 according to the invention is shown on a drill 70. The drill 70 has a mast 78 along which a carriage 76 is slidably guided and driven. On the carriage a drill drive 72 is mounted, which consists of a motor and a flanged gear. On an output shaft 74 of the drill drive 72, the receiving sleeve 12 of the coupling device 10 is welded. For coupling a drill pipe 60, this has the connection region 62, which in connection with Fig. 4 has been described. A rotationally fixed connection is achieved by the mutually corresponding Keilnutprofile, while an axial securing is achieved by the locking elements 16 of the coupling device 10.

Claims (9)

  1. Coupling device for drill rods (60) comprising a receiving socket (12) for receiving a connecting portion (62) of the drill rod (60), wherein at least one locking device (14) with a locking element (16) is provided, which is supported in an adjustable manner between a release position and a locking position, in which the locking element (16) engages into a corresponding recess (64) of the connecting portion (62)
    characterized in that
    - for an axial locking the recess (64) of the connecting portion (62) is formed as an annular groove and
    - for forming a keyway profile on an inner side of the receiving socket (12) axial ribs (28) are arranged, which can be brought into engagement with corresponding axial grooves (66) of the connecting portion (62) in order to produce a rotational connection.
  2. Coupling device according to claim 1,
    characterized in that
    the locking device (14) has a housing (18) arranged on the outer side of the receiving socket (12) and
    in that a sliding element (20) is supported in the housing (18) for adjusting the locking element (16).
  3. Coupling device according to claim 2,
    characterized in that
    the sliding element (20) is designed as a pivotably supported bolt having a cam (22), which engages into an obliquely extending slotted link (24) in the housing (18).
  4. Coupling device according to claim 3,
    characterized in that
    a pivot lever (26) is provided for pivoting the bolt, which is connected to the bolt at a rear portion thereof.
  5. Coupling device according to any one of claims 1 to 4,
    characterized in that
    the locking element (16) is supported on the sliding element (20) in a radially movable and resilient manner.
  6. Coupling device according to any one of claims 1 to 5,
    characterized in that
    three locking devices (14) are provided, which are arranged in an evenly distributed manner at the outer circumference of the receiving socket (12).
  7. Drilling apparatus comprising a drill drive (72) for driving a drill rod (60),
    characterized in that
    a coupling device (10) according to any one of claims 1 to 6 is provided.
  8. Drilling apparatus according to claim 7,
    characterized in that
    the receiving socket (12) is fixed to the output shaft (74) of the drill drive (72).
  9. Drilling apparatus according to claim 7 or 8,
    characterized in that
    the drill drive (72) is supported on a carriage (76) which is guided in a movable manner on a mast (78).
EP06008687A 2006-04-26 2006-04-26 Coupling means Not-in-force EP1860275B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
DE502006000913T DE502006000913D1 (en) 2006-04-26 2006-04-26 coupling device
EP06008687A EP1860275B1 (en) 2006-04-26 2006-04-26 Coupling means
AT06008687T ATE398227T1 (en) 2006-04-26 2006-04-26 CLUTCH DEVICE
ES06008687T ES2307248T3 (en) 2006-04-26 2006-04-26 COUPLING DEVICE.
PT06008687T PT1860275E (en) 2006-04-26 2006-04-26 Coupling means
CA002582125A CA2582125A1 (en) 2006-04-26 2007-03-13 Coupling device
SG200702548-9A SG136880A1 (en) 2006-04-26 2007-04-05 Coupling device
RU2007114756/03A RU2370618C2 (en) 2006-04-26 2007-04-19 Connector and drilling rig
JP2007112516A JP4657241B2 (en) 2006-04-26 2007-04-23 Coupling device and drilling device
CN2007101011075A CN101063403B (en) 2006-04-26 2007-04-26 Coupling device
US11/790,558 US20070277988A1 (en) 2006-04-26 2007-04-26 Coupling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06008687A EP1860275B1 (en) 2006-04-26 2006-04-26 Coupling means

Publications (2)

Publication Number Publication Date
EP1860275A1 EP1860275A1 (en) 2007-11-28
EP1860275B1 true EP1860275B1 (en) 2008-06-11

Family

ID=37056615

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06008687A Not-in-force EP1860275B1 (en) 2006-04-26 2006-04-26 Coupling means

Country Status (11)

Country Link
US (1) US20070277988A1 (en)
EP (1) EP1860275B1 (en)
JP (1) JP4657241B2 (en)
CN (1) CN101063403B (en)
AT (1) ATE398227T1 (en)
CA (1) CA2582125A1 (en)
DE (1) DE502006000913D1 (en)
ES (1) ES2307248T3 (en)
PT (1) PT1860275E (en)
RU (1) RU2370618C2 (en)
SG (1) SG136880A1 (en)

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* Cited by examiner, † Cited by third party
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IT1400174B1 (en) 2010-05-25 2013-05-17 Soilmec Spa TELESCOPIC AUCTION (KELLY) FOR THE IMPLEMENTATION OF PILLAR POLES.
US8292150B2 (en) 2010-11-02 2012-10-23 Tyco Healthcare Group Lp Adapter for powered surgical devices
CN102146772B (en) * 2011-02-15 2013-04-17 宝鸡石油机械有限责任公司 Rotary locking piece type drilling riser connector
ITTO20110248A1 (en) * 2011-03-22 2012-09-23 Soilmec Spa LOCKING DEVICE FOR TUBULAR ELEMENTS.
DE102013020761B4 (en) * 2013-12-09 2018-01-04 Stahl- und Apparatebau Hans Leffer GmbH & Co. KG Locking device and method for the tool holder of a rotary drilling rig
US9556698B2 (en) * 2014-12-31 2017-01-31 Cameron International Corporation Landing system
CN107288131B (en) * 2016-04-12 2023-05-02 中建四局第五建筑工程有限公司 Construction machine for pile pulling by rotary digging machine
DE102019134109B4 (en) * 2019-12-12 2021-08-12 Sven Beckhusen Device for connecting a drill pipe to the drill drive of a drilling device and a drilling arrangement for earth drilling with such a device
EP4073341A1 (en) 2019-12-12 2022-10-19 Sven Beckhusen Device for connecting a drill pipe to the drilling drive of a drilling rig, and drilling assembly for boreholes comprising such a device

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Also Published As

Publication number Publication date
CA2582125A1 (en) 2007-10-26
RU2007114756A (en) 2008-10-27
CN101063403A (en) 2007-10-31
SG136880A1 (en) 2007-11-29
ES2307248T3 (en) 2008-11-16
ATE398227T1 (en) 2008-07-15
JP4657241B2 (en) 2011-03-23
US20070277988A1 (en) 2007-12-06
DE502006000913D1 (en) 2008-07-24
PT1860275E (en) 2008-09-09
EP1860275A1 (en) 2007-11-28
RU2370618C2 (en) 2009-10-20
JP2007291848A (en) 2007-11-08
CN101063403B (en) 2011-10-05

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