EP1706579B1 - Halteschlüssel für gesteinsbohrmaschine und solch einen halteschlüssel enthaltende gesteinsbohrmaschine - Google Patents

Halteschlüssel für gesteinsbohrmaschine und solch einen halteschlüssel enthaltende gesteinsbohrmaschine Download PDF

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Publication number
EP1706579B1
EP1706579B1 EP04800413A EP04800413A EP1706579B1 EP 1706579 B1 EP1706579 B1 EP 1706579B1 EP 04800413 A EP04800413 A EP 04800413A EP 04800413 A EP04800413 A EP 04800413A EP 1706579 B1 EP1706579 B1 EP 1706579B1
Authority
EP
European Patent Office
Prior art keywords
drill string
wrench
engagement
wrench according
gripping means
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
EP04800413A
Other languages
English (en)
French (fr)
Other versions
EP1706579A1 (de
Inventor
Ulf KÄMPE
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.)
Epiroc Rock Drills AB
Original Assignee
Atlas Copco Rock Drills AB
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 Atlas Copco Rock Drills AB filed Critical Atlas Copco Rock Drills AB
Publication of EP1706579A1 publication Critical patent/EP1706579A1/de
Application granted granted Critical
Publication of EP1706579B1 publication Critical patent/EP1706579B1/de
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
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/58—Machines slitting by drilling hole on hole
    • 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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/161—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe

Definitions

  • the invention concerns a holding wrench according to the preamble of claim 1 and a rock drilling machine including such a holding wrench.
  • a drill string having a reamer at its free end has to be assembled in accordance with the advancement of the reamer into the rock structure.
  • drill string components are accordingly joined so as to form the drill string at a proximal end thereof, generally by screwing a new drill string component onto the advanced drill string.
  • a new drill string component is added similarly to the proximal end of the thus advanced drill string and so on.
  • Disassembling of the drill string is carried out in the opposite way, i.e. the drill string is drawn into the drilling machine under successive loosening of the proximal drill string component from the rest of the drill string.
  • the drill string In order to control the drill string and to allow the most proximal drill string component to be joined and disjoined respectively, the drill string has to be fixed against rotational movement, which is accomplished by engagement of a holding wrench.
  • holding wrenches There are different types of holding wrenches used for this purpose, for example fixed wrenches having gripping jaws positioned inside a U-shaped gripping head as disclosed in GB-A-2,139,129 .
  • gripping means being pivotally supported so as to be positioned into gripping position by means of actuators as disclosed in GA-A-2,440,176.
  • actuators In case of large dimensions there are corresponding high demands for powerful actuators so as to resist forces occurring during in particular in loosening of a drill string component during disassembling of the drill string.
  • the invention also makes it possible to reduce the dimensions on the gripping means as well as the positioning means. In particular the latter only have to be dimensioned for moving the gripping means and not for resisting any wrenching forces.
  • a holding wrench according to the invention is particularly useful for excavating drilling machines meaning that a relatively large diameter drill bit, or a reamer, is used and in particular where the frame opening is dimensioned such that the reamer can pass said frame opening under retraction of the entire drill string including the reamer.
  • the gripping means there is a demand for the gripping means to be able to move between the active position where it is capable of gripping a drill string having a diameter of perhaps only about 1/5 - 1/3 of the free diameter of the frame opening.
  • the locking means are pivotally movable and in particular that they form hook parts that upon pivoting engagement pins or the like on an adjacent gripping means. It is preferred that the engagement means are actuated by linear hydraulic actuators but pneumatic and electric actuators can also be useful.
  • the locking means are rotatable and engage into a corresponding element by means of for example screw threads or bayonet coupling elements by means of a rotational actuator.
  • Fig. 1 there is shown a rock drilling machine for excavating purposes, wherein a reamer 3, which is carried on a drill string 2, excavates a cylindrical part of rock formation.
  • a pilot bit is indicated with 4 and a head frame of a holding wrench according to the invention is indicated with 5.
  • the rock drilling machine 1 provides several additional details which are not part of this invention and therefore not described here.
  • a derrick 8 includes the head frame 5 of the holding wrench 6, wherein the free opening of the frame 5 viz. the frame opening 7 appears as having a diameter substantially exceeding the diameter of the drill string component 2'.
  • the derrick is tiltable by power means which are not part of this invention and therefore not described here.
  • the frame opening 7 is shown in connection with the comparatively large diameter reamer 3, which is intended to be drawn inside the rock drilling machine, that is through the frame opening 7, after the finishing of one bore hole and during transport to the next drilling position.
  • FIG. 4 a holding wrench having only a slightly differently shaped head frame 5 from the one shown in Fig. 2 and 3 is shown.
  • Fig. 4 shows the holding wrench in the inactive position of the gripping means 9, wherein free passage through the frame opening 7 is allowed since the gripping means are entirely positioned beside said opening 7.
  • Fig. 5 the gripping means 9 have been displaced to their active position such that they engage with wrenching surfaces (20 in Figs. 1 and 2) on a drill string component.
  • the gripping means are interlocked to each other by the locking means on one gripping means engaging an engagement means on an adjacent gripping means so as to form a closed rigid wrench structure which entirely encloses a drill string component 2'.
  • Fig. 6 parts of the holding wrench are shown without the background of the head frame for clarity reasons.
  • the gripping means are, like in Fig. 5, in the active position, that is with the gripping means being rigidly interconnected to each other by means of the locking means.
  • These are in the form of pivotal engagement elements which are at least partly hook shaped, and wherein each respective hook portion catches an engagement means 15 in the form of a pin which is positioned at an adjacent area of an adjacent gripping means.
  • Fig. 6 there is further shown a respective pivot axes 12, around which the gripping means are pivotally movable by means of one respective positioning means 10 which in this case is a hydraulic cylinder.
  • each gripping means provides a swing arm 11 for obtaining the sufficient distance when rotating between the active position and the inactive position.
  • Each locking means is movable by means of one respective linear actuator 17, also in the form of a hydraulic cylinder.
  • each gripping means there are a number, here 2, gripping surfaces 13 which in this case are positioned at right angle to each other, for engagement with the similarly shaped wrenching surfaces on the respective drill string components 2'.
  • the invention also provides for the possibility of having the holding wrench acting as a guide for a starter sub (detail 4' in Fig. 1) which carries the pilot bit 4, at the initial stage of a drilling operation.
  • a starter sub (detail 4' in Fig. 1) which carries the pilot bit 4, at the initial stage of a drilling operation.
  • This is accomplished by having the holding wrench in its active, closed position, holding a guide bushing 18 having an inside opening allowing axial movement of the starter sub (4' in Fig. 1). This is done during only a short distance allowing the pilot bit to be fully established in its pilot hole in the rock.
  • the holding wrench is opened and the guide bushing, which preferably consists of two halves, is removed, whereafter the drilling procedure continues.
  • the invention may be modified within the scope of the invention.
  • the gripping means may be actuated differently by for example pneumatic or electric actuators.
  • the number of gripping means may be different, for example three or four.
  • the position of the locking means may be altered and it is also within the scope of the invention to provide locking by other means than by pivotal hooking together two adjacent gripping means.
  • An example of this is to have screw means and another example is bayonet coupling means between two adjacent gripping means. It should be understood that it is preferred that the movement of the gripping means as well as the movement of the locking means are controlled either automatically by a control system or distance controlled by an operator.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Drilling And Boring (AREA)

Claims (13)

  1. Halteschlüssel (6) zum Halten von Bohrstrangkomponenten (2') zum Zweck des Zusammenbaus oder des Zerlegens eines Bohrstrangs (2) während eines Bohrprozesses und beinhaltend Positionierungsmittel (10) zur Bewegung von zumindest zwei Greifmitteln (9) in den Eingriff mit Schlüsselober-flächen (20) der Bohrstrangkomponenten, wobei die Greifmittel gelenkig auf einem Hauptrahmen (5) getragen sind, sodass sie in einer Ebene normal zu einer zentralen Achse des Bohrstranges zwischen einer aktiven Greifposition und einer inaktiven eingezogenen Position schwenkbar sind, und wobei der Hauptrahmen (5) eine Rahmenöffnung (7) für den Durchtritt des Bohrstranges (2) hat, dadurch gekennzeichnet, dass jedes Greifmittel (9), Schließmittel (14) zum verriegelnden Eingreifen mit Eingreifmitteln (15) auf einem angrenzenden Greifmittel (9) in der aktiven Position beinhaltet, um eine geschlossene starre Schlüsselstruktur zu erhalten.
  2. Schlüssel nach Anspruch 1, dadurch gekennzeichnet, dass die Rahmenöffnung (7) das Durchtreten eines Räumers (3) zum Ausräumen von Gestein in der inaktiven Position des Greifmittels erlaubt.
  3. Schlüssel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jedes Schließmittel (14) ein drehbares Eingriffselement beinhaltet.
  4. Schlüssel nach Anspruch 3, dadurch gekennzeichnet, dass jedes drehbare Eingriffselement (14) zumindest teilweise hakenförmig ist.
  5. Schlüssel nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Eingriffsmittel (15) stiftförmig ist.
  6. Schlüssel nach irgendeinem der Ansprüche 3 bis 5, dadurch gekennzeichnet, dass das Eingriffselement (14) durch einen linearen Antrieb (17) der Gruppe: hydraulischer Motor, pneumatischer Motor, elektrischer Motor, betätigt wird.
  7. Schlüssel nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass jedes Schließmittel drehbar ist, und dass der Verriegelungseingriff mit dem Eingriffsmittel durch eine Drehbewegung erhalten wird.
  8. Schlüssel nach Anspruch 7, dadurch gekennzeichnet, dass der verriegelnde Eingriff erreicht wird durch irgendeines der Gruppe: Schraubengewinde, Bajonett-Kupplungselemente.
  9. Schlüssel nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Schließmittel durch einen Rotationsantrieb von der Gruppe: hydraulischer Motor, pneumatischer Motor, elektrischer Motor, betätigt werden.
  10. Schlüssel nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Greifmittel (9) zentral in einer Ebene drehbar ist, die parallel zu der allgemeinen Ebene des Hauptrahmens ist.
  11. Schlüssel nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Positionierungsmittel (9) ein Antrieb aus der Gruppe: hydraulischer linearer oder drehbarer Motor, elektrischer linearer oder drehbarer Motor, pneumatischer linearer oder drehbarer Motor, ist.
  12. Schlüssel nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anzahl von Greifmitteln (9) zwei bis vier ist.
  13. Bohrmaschine (1) zur Extraktion von Erzen aus einem erzhaltigen Gestein durch Aushub mit einem Räumer (3), der seine Schneidflächen während des Bohrprozesses von der Maschine gerichtet hat, und mit einem Schlüssel (6) nach irgendeinem der Ansprüche 1 bis 12 zum Halten von Bohrstrangkomponenten zum Zweck des Zusammenbaus oder des Zerlegens eines Bohrstranges (2), der den Räumer (3) während des Bohrprozesses trägt.
EP04800413A 2004-01-14 2004-11-29 Halteschlüssel für gesteinsbohrmaschine und solch einen halteschlüssel enthaltende gesteinsbohrmaschine Not-in-force EP1706579B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0400057A SE528664C2 (sv) 2004-01-14 2004-01-14 Hållarnyckel för bergborrningsmaskin och bergborrningsmaskin inkluderande en sådan hållarnyckel
PCT/SE2004/001757 WO2005068772A1 (en) 2004-01-14 2004-11-29 Holding wrench for rock drilling machine and rock drilling machine including such a holding wrench

Publications (2)

Publication Number Publication Date
EP1706579A1 EP1706579A1 (de) 2006-10-04
EP1706579B1 true EP1706579B1 (de) 2008-01-23

Family

ID=31493036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04800413A Not-in-force EP1706579B1 (de) 2004-01-14 2004-11-29 Halteschlüssel für gesteinsbohrmaschine und solch einen halteschlüssel enthaltende gesteinsbohrmaschine

Country Status (10)

Country Link
EP (1) EP1706579B1 (de)
AT (1) ATE384854T1 (de)
AU (1) AU2004313811B2 (de)
CA (1) CA2547707C (de)
DE (1) DE602004011571T2 (de)
ES (1) ES2297515T3 (de)
PT (1) PT1706579E (de)
SE (1) SE528664C2 (de)
WO (1) WO2005068772A1 (de)
ZA (1) ZA200604816B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3361039A1 (de) 2017-02-13 2018-08-15 Epiroc Rock Drills Aktiebolag Bohrstrangführungsvorrichtung und verfahren zur verbindung von bohrstrangkomponenten mit solch einer vorrichtung
CN109764184B (zh) * 2019-02-18 2024-05-14 安百拓（南京）建筑矿山设备有限公司 凿岩台车钻臂油管固定装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL68567A0 (en) * 1983-05-04 1983-09-30 Avraham Bar Yam Hydraulic wrench
NO163973C (no) * 1988-04-19 1990-08-15 Maritime Hydraulics As Momenttanganordning.
CA2440176C (en) * 1996-06-27 2004-06-22 Bucyrus International, Inc. Blast hole drill pipe gripping mechanism
AUPO829097A0 (en) * 1997-07-29 1997-08-21 Universal Drilling Systems (Aust) Pty Limited Apparatus for disconnecting drill rods

Also Published As

Publication number Publication date
ES2297515T3 (es) 2008-05-01
DE602004011571D1 (de) 2008-03-13
DE602004011571T2 (de) 2009-01-29
AU2004313811A1 (en) 2005-07-28
CA2547707C (en) 2012-11-27
ZA200604816B (en) 2008-01-08
AU2004313811B2 (en) 2010-03-25
WO2005068772A1 (en) 2005-07-28
SE0400057L (sv) 2005-07-15
CA2547707A1 (en) 2005-07-28
PT1706579E (pt) 2008-03-05
SE528664C2 (sv) 2007-01-16
ATE384854T1 (de) 2008-02-15
SE0400057D0 (sv) 2004-01-14
EP1706579A1 (de) 2006-10-04

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