EP2396497B1 - Verfahren zur verwendung eines halters und halter - Google Patents

Verfahren zur verwendung eines halters und halter Download PDF

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Publication number
EP2396497B1
EP2396497B1 EP10740972.4A EP10740972A EP2396497B1 EP 2396497 B1 EP2396497 B1 EP 2396497B1 EP 10740972 A EP10740972 A EP 10740972A EP 2396497 B1 EP2396497 B1 EP 2396497B1
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EP
European Patent Office
Prior art keywords
clamping
clamping arm
retainer
clamping arms
actuator
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Application number
EP10740972.4A
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English (en)
French (fr)
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EP2396497A1 (de
EP2396497A4 (de
Inventor
Juha Piipponen
Sami KERÄNEN
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Sandvik Mining and Construction Oy
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Sandvik Mining and Construction Oy
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Publication of EP2396497A1 publication Critical patent/EP2396497A1/de
Publication of EP2396497A4 publication Critical patent/EP2396497A4/de
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    • 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
    • E21B19/24—Guiding or centralising devices for drilling rods or pipes
    • 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
    • E21B19/163—Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe piston-cylinder actuated

Definitions

  • the invention relates to a method for moving clamping arms of a retainer belonging to an excavation apparatus in such a manner that clamping jaws provided in the clamping arms move simultaneously towards each other, clamping between them a drill rod, rock bolt or a similar excavation tool, which is located in the drilling centre of the rock drilling unit or another excavation apparatus.
  • Mechanical synchronization is provided between the clamping arms to render their movements interdependent.
  • the invention further relates to a retainer adaptable to a feed beam of a rock drilling unit, bolting device or a similar excavation apparatus.
  • the retainer comprises at least two clamping jaws that are moved by means of one or more actuators. Between the clamping arms there is a synchronization mechanism to render their movements interdependent.
  • Rock drilling is performed using a rock drilling unit provided with a rock drilling machine and a tool connected thereto to produce a drill hole into the material to be worked on.
  • the tool may comprise a drill rod and a drill bit connected to the distal end thereof or, if long drill holes are to be drilled, a plurality of successive drill rods connected one after the other into an extension rod arrangement.
  • the drill rod needs to be centred by guiding it with the clamping jaws of the retainer in the drilling centre.
  • the retainer may be used for locking the drill rod or other drilling tools to prevent them from rotating for example when drill rods are attached to each other, to the drilling machine or the drill bit.
  • Publication US 4 438 984 discloses a retainer in which the clamping arms of the retainer are interconnected by a rod transmitting the forces from one arm to another. The disclosed structure occupies a lot of space on the feed beam.
  • Publication EP 1 447 522 discloses the preamble of claim 1.
  • the method of the invention is characterized by arranging at least one portion of both the first clamping arm and the second clamping arm in an interleaved manner and arranging shape surfaces provided in the form of openings in the interleaved portions to coincide; and transmitting movement between the clamping arms by means of a connecting pin parallel with the centre, the pin being in contact with the shape surfaces of the clamping arms.
  • the retainer of the invention is characterized in that the first clamping arm and the second clamping arm are interleaved at least on the portion of the shape surfaces, the shape surfaces defining a connecting channel, and a connecting pin arranged in the connecting channel whereby the connecting pin transmits movement between the shape surfaces of the clamping arms.
  • the retainer comprises synchronization means with which the movements of the clamping arms are made mutually dependent.
  • the synchronization means are separate from one or more actuators acting on the clamping arms and transmit the movements of the clamping arms in both travel directions thereof.
  • the synchronization means are implemented by shape members arranged to the clamping arms and located on the portion between the pivot joints of the clamping arms.
  • An advantage of the invention is that since the synchronization means are arranged on the portion between the pivot joints, they do not add to the outer dimensions of the retainer in any way.
  • a further advantage is that by utilizing shape surfaces formed to the clamping arms, synchronization may be implemented using a simple mechanical structure and a small number of components. Due to this synchronization does not increase significantly the weight of the retainer. Moreover, the retainer operates reliably.
  • the shape members on the portion between the pivot points are in constant contact with each other, and thereby at all times ready to synchronize the movements of the clamping arms in both travel directions.
  • the synchronizing means comprise shape surfaces formed directly to the structure of the first and the second clamping arms, the surfaces being arranged against each other and transmitting synchronization movements between the clamping arms through their contact surfaces that set against each other.
  • the first clamping arm and the second clamping arm are provided with mutually compatible teeth arranged against each other, movement between the clamping arms being transmitted by direct tooth contact.
  • the teeth may be made directly to the structure of the clamping arms.
  • the shape surfaces formed to the first and the second clamping arms are in constant contact with each other at least on some portion thereof.
  • the synchronization means comprise shape surfaces formed to the first and the second clamping arm on a portion between the pivot joints.
  • the shape surfaces are interconnected by a connecting piece separate from the clamping arms and arranged against the shape surfaces.
  • the connecting piece is not attached to the clamping arms and the shape surfaces provided in them. During synchronization, movement may take place between the form surfaces and the connecting piece.
  • the first clamping arm comprises at least two first connecting cams arranged at an axial distance from one another, when the retainer is observed in the direction of the centre.
  • the second clamping arm comprises at least two second connecting cams on a portion between pivot joints, the cams being arranged at an axial distance from one another.
  • the first connecting cams and the second connecting cams are interleaved on the portion between the pivot joints.
  • the first and the second connecting cams are provided with connecting slots that open towards each other and are arranged to coincide when observed in the direction of the centre, the connecting slots being arranged to form a connecting channel when observed in the direction of the centre.
  • This connecting channel is provided with a connecting pin that serves as a transmission member between the interleaved connecting cams.
  • the connecting pin moves in a vertical direction when the clamping arms are moved.
  • the vertical movement of the connecting pin is allowed through a longitudinal hole or the like provided in the body of the retainer.
  • the connecting pin is a separate piece not attached to the clamping arms.
  • the first clamping arm is provided with an immobile connecting pin, whose outer surface serves as a first shape surface.
  • the second clamping arm comprises a longitudinal connecting opening that serves as a second shape surface.
  • the connecting pin is arranged through the connecting opening, their shape surfaces transmitting synchronization movements between the clamping arms.
  • the retainer comprises only a single actuator arranged between the clamping arms and connected to act simultaneously on both clamping arms.
  • the retainer comprises only a single actuator arranged to act on the first clamping arm only. In that case movement to the second clamping arm is transmitted by the synchronization means.
  • the retainer comprises at least two actuators, at least a first actuator being connected to act on the first clamping arm only and at least one second actuator being arranged to act on the second clamping arm only.
  • the actuator is a hydraulic cylinder connected to a clamping arm by a pivot.
  • the actuator is arranged to direct the forces needed for moving the clamping arms directly to the clamping arms. This is advantageous for the durability of the construction.
  • the actuator is connected to the clamping arm by a pivot.
  • the pivoting makes the construction durable and, moreover, it may be used to reduce friction.
  • the actuator is a pressure medium cylinder arranged transversally in relation to the longitudinal axis of the clamping arms.
  • the linear travel direction of the actuator is thus arranged to substantially correspond to the travel directions of the clamping jaws.
  • the actuator is placed outside the portion between the pivot points of the clamping arms.
  • a fixing point where the actuator is connected to the clamping arm, may be located at a greater distance from a pivot point of the clamping arm, thus allowing a greater torque arm to be achieved and thereby the clamping force produced by the actuator to be increased.
  • the clamping jaws comprise a slot of a substantially V-shaped cross-section on their surfaces facing each other, thus allowing the clamping jaws to centre a drill rod or the like pressed between them. Due to the shape of the jaws also drill rods and the like with differing diameters may be centred.
  • the clamping jaws are arranged to move at the same travel speed, for the same distance and symmetrically in relation to each other.
  • FIG. 1 shows an excavation apparatus 1 comprising a movable carrier 2 provided with one or more booms 3.
  • a first boom 3a is a drilling boom provided with a rock drilling unit 4.
  • the drilling unit 4 comprises a rock drilling machine 5 that is movable on a feed beam 6 by a feed device 7.
  • the rock drilling machine 5 may be provided with a tool 8 coupled thereto and comprising a plurality of successive drill rods 9, which are attached to each other by connecting means, such as a threaded joint.
  • a drill bit 10 having drill buttons for making a drilling hole 12 into rock 11.
  • the rock drilling machine 5 may comprise an impact device used for delivering impact pulses to the tool 8 that transmits them to the drill bit 10 and further to the rock 11 to be broken.
  • the rock drilling machine 5 may also comprise a rotating device allowing the tool 8 to be rotated about its longitudinal axis during drilling.
  • the drilling unit 4 may also be provided with a rod magazine 13 supported on the feed beam 6.
  • the rod magazine 13 may be used for storing extension rods 9 and other drilling tools needed in long hole drilling.
  • the rod magazine 13 is provided with transfer means for transferring drilling tools between the rod magazine 13 and the drilling axis, i.e. the centre K.
  • the distal end portion of the feed beam 6 is provided with retainer 14 that has jaws for clamping the tool 9 and centring it in the drilling centre K.
  • the jaws may take hold of the shaft or the connecting sleeve of the drill rod 9, thus allowing the rod to be held in place when the joints are screwed or unscrewed. Further, it is possible to grab the drill bit 10 with the retainer and to hold it in place when the drill bit 10 is to be changed.
  • the feed beam 6 may be provided with a drill bit magazine.
  • a second boom 3b of the excavation apparatus 1 of Figure 1 is provided with another excavation device 15 for handling excavation tools 16, such as rock bolts, injection tubes and the like. Also these may need to be held by the jaws or the tool may need to be centred to the centre K of the apparatus. In such cases also these excavation devices 15 may be provided with the retainer 14 of the invention.
  • FIG 2 shows a rock drilling unit 4 in which the feed beam 6 is provided with a rod magazine 13 in which drill rods 9 needed in drilling are.
  • the distal end of the feed beam 6 is provided with a retainer 14, the possible structural alternatives of which are shown in greater detail in Figures 3 to 12 .
  • the retainer 14 of Figure 3 comprises a body 17 allowing it to be attached to the feed beam.
  • the retainer 14 also comprises a first clamping arm 18a connected by a first pivot joint 19a to the body 17 and a second clamping arm 18b connected by a second pivot joint 19b to the body 17.
  • the clamping arms 18 may be moved in relation to the pivot joints 19 by an actuator 20 located between them, whereby clamping jaws 21a, 21b at the distal ends of the clamping arms 18 move either towards or away from each other, depending naturally on the direction of movement of the actuator 20.
  • the actuator 20 may be a pressure medium cylinder, such as a hydraulic cylinder, that may be connected to the clamping arm 18 by joints 22. The actuator 20 then transmits the forces directly to the clamping arms.
  • the actuator 20 is placed outside the portion between the pivot joints 19a and 19b.
  • the point of connection of the actuator 20, i.e. the joint 22, is located at a distance from the pivot joint 19a, 19b, whereby a torque arm is generated between the joints 19 and 22.
  • the clamping jaws 21 may comprise centring surfaces on their surfaces facing each other and thus, when they move towards each other, they may centre the drill rod 9 or other tool between them precisely into the centre K.
  • the centring surfaces 23 may have a substantially V-shaped cross-section and they naturally open towards the centre K. Of course other inclined or conical centring surfaces 23 may also be used in the clamping jaws 21.
  • the clamping arms 18 are made to move interdependently by synchronization means 24 provided on the portion between the pivot joints 19.
  • the synchronization means 24 are separate from the actuator 20.
  • Figure 3 shows a connecting pin 25 which is parallel with the centre K and may belong to the synchronization means 24.
  • the body 17 is provided with a longitudinal opening 26 in the vertical direction, the opening allowing the connecting pin 25 to move in vertical direction V, when the clamping arms 18 are moved.
  • the first clamping arm 18a may comprise two or more first connecting cams 27, which are at an axial distance from one another when the retainer 14 is observed in the direction of the centre K.
  • the second clamping arm 18b may comprise two or more second connecting cams 28.
  • the connecting cams 27, 28 are interleaved on the portion between the pivot joints 19, as shown in Figure 4 .
  • the connecting cams 27, 28 are provided with connecting slots 29 that may open towards each other and are arranged to coincide in the axial direction so that together they form a kind of a connecting channel 30.
  • This axial connecting channel 30 is provided with a connecting pin 25 that may serve as a transmission member between the connecting cams 27, 28.
  • a connecting pin 25 that may serve as a transmission member between the connecting cams 27, 28.
  • FIG. 5 further clearly shows the formation of a connecting channel 30 between the connecting cams 27, 28.
  • the body 17 is provided with longitudinal openings 26a, 26b.
  • the cross-sectional Figures 6 and 7 further clarify the construction of this embodiment. Unlike in Figures 4 to 7 , it may be possible to provide connecting slots 29 with a closed shape.
  • the cross-section of the connecting pin 25 is preferably circular.
  • a first actuator 20a transmits force to a first clamping arm 18a only and a second actuator 20b transmits force to a second clamping arm 18b only.
  • the synchronization means 24 ensure the simultaneity of the movement of the clamping arms 18.
  • FIG 10 shows a strongly simplified embodiment of synchronization means 24 including teeth 31a, 31b formed to the clamping arms 18.
  • the teeth are formed to the curved transmission surfaces of the pivot joints 19. In this application the synchronization movements are transmitted directly through contact with the teeth, therefore no connecting pins or a similar connecting members are needed.
  • the teeth 31 serve as the necessary shape members between the clamping arms 18.
  • Figure 11 shows a strongly simplified embodiment of synchronization means 24 provided with a first longitudinal connecting opening 32a in the first clamping arm 18a and a second longitudinal connecting opening 32b in the second clamping arm 18b. At least on the portions of the connecting openings 32 the clamping arms 18 are interleaved in relation to each other.
  • the clamping arms 18 may be provided with connecting cams 27, 28 or corresponding projecting portions on these interleaved portions.
  • the connecting openings 32 are arranged transversally with respect to each other, whereby they together define a connecting channel 30 with a connecting pin 25 arranged therein.
  • the connecting pin 25 is not attached to the connecting openings 32 but it is allowed to move in the longitudinal direction of the connecting openings 32 and, at the same time, also in a vertical direction with respect to the centre K, when the clamping arms 18 are moved by applying a turning force to the force transmission points 22.
  • Figure 12 shows yet another strongly simplified embodiment of the synchronization means 24 having a longitudinal connecting opening 32 formed to the first clamping arm 18a and an immovably fixed connecting pin 25 provided on the second clamping arm 18b.
  • the clamping arms 18 are interleaved with respect to each other on the portion of the connecting opening 32 and the connecting pin 25.
  • the clamping arms 18 may be provided with connecting cams 27, 28 or similar protruding portions on these interleaved portions.
  • the connecting cam 27 comprises a slot-like connecting opening 32 that opens towards the second clamping arm 18b.
  • the outer surface of the connecting pin 25 and the edges of the connecting opening 32 serve as shape surfaces transmitting the synchronization movements.
  • the connecting pin 25 is arranged between the interleaved portions and is to be subjected substantially to shearing forces only. In that case the connecting pin 25 may be relatively thin, yet it is able to transmit even strong forces between the clamping arms 18. In the embodiments of Figures 3 to 7 and 11 there is a separate connecting pin 25 that is easy to detach and replace.
  • the opening movement of the clamping jaws 21 of the retainer 14 may be arranged to be sufficiently large to allow it to be used for clamping both the shaft of the drill rod 9 and the connecting sleeve between successive drill rods 9. Also the drill bit 10 or any other tool used in excavation may be gripped with it.
  • the characteristics presented in this application may be used as such, independently of other features. However, the characteristics presented in this application may also be combined, when necessary, to provide different combinations.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Jigs For Machine Tools (AREA)

Claims (8)

  1. Verfahren zur Verwendung eines Halters, der zu einer Aushubvorrichtung gehört, wobei der Halter (14) Folgendes umfasst: einen Körper (17), einen ersten Klemmarm (18a) und einen zweiten Klemmarm (18b), die an dem Körper (17) drehbar gelagert sind, Klemmbacken (21a, 21b) an den distalen Enden der Klemmarme (18a, 18b) und mindestens einen Stellantrieb (20);
    und das Verfahren umfassend die folgenden Schritte
    Drehung der Klemmarme (18a, 18b) mit dem Stellantrieb (20) bezüglich ihrer Drehpunkte (19a, 19b), wodurch sich die Klemmbacken (21a, 21b) in Abhängigkeit von der Bewegungsrichtung des Stellantriebs (20) entsprechend aufeinander zubewegen und voneinander wegbewegen;
    Klemmung eines Werkzeugs (9) in der Mitte (K) der Aushubvorrichtung (4, 15) mit den Klemmbacken (21a, 21b), um es zu zentrieren und zu greifen, während es in der Mitte (K) positioniert ist;
    Verbindung der Klemmarme (18a, 18b) miteinander durch separate mechanische Synchronisationsmittel (24), wobei die Bewegungen der Klemmarme (18a, 18b) somit voneinander abhängig sind und die Klemmbacken (21a, 21b) sich gleichzeitig und symmetrisch bewegen;
    und Anordnung von Formelementen an dem Abschnitt zwischen den Drehpunkten (19a, 19b) der Klemmarme (18a, 18b) und Synchronisierung der Bewegung zwischen dem ersten Klemmarm (18a) und dem zweiten Klemmarm (18b) mit den Formelementen in beiden Laufrichtungen der Klemmarme;
    gekennzeichnet durch
    Anordnung von mindestens einem Abschnitt von beiden des ersten Klemmarms (18a) und des zweiten Klemmarms (18b) in einer verschachtelten Weise und Anordnung von Formflächen (29, 32a, 32b), die in Form von Öffnungen in den verschachtelten Abschnitten vorgesehen sind, um zusammenzufallen; und
    Übertragen einer Bewegung zwischen den Klemmarmen (18a, 18b) mittels eines Verbindungsstiftes (25) parallel zur Mitte (K), wobei der Stift in Kontakt mit den Formflächen der Klemmarme (18a, 18b) steht.
  2. Verfahren nach Anspruch 1, gekennzeichnet durch
    Zulassen einer Querbewegung des Verbindungsstifts (25) in einer vertikalen Richtung, wenn sich die Klemmarme (18a, 18b) bewegen.
  3. Halter umfassend
    einen Körper (17), der es ermöglicht, den Halter (14) an einem Vorschubbalken (6) einer Aushubvorrichtung (4, 15) anzubringen;
    einen ersten Klemmarm (18a), der durch ein erstes Drehgelenk (19a) mit dem Körper (17) verbunden ist, und einen zweiten Klemmarm (18b), der durch ein zweites Drehgelenk (19b) mit dem Körper (17) verbunden ist;
    Klemmbacken (21a, 21b), die an den Abschnitten der distalen Enden der Klemmarme (18a, 18b) angeordnet sind und einander gegenüberliegen;
    mindestens einen Stellantrieb (20) zur Bewegung der Klemmarme (18a, 18b) relativ zu den Drehgelenken (19a, 19b), wobei die Klemmbacken (21a, 21b) aufeinander zu und voneinander wegbewegbar sind;
    mechanische Synchronisationsmittel (24), die von dem Stellantrieb (20) getrennt sind, um die Bewegung des ersten Klemmarms (18a) und jene des zweiten Klemmarms (18b) miteinander zu verbinden, um voneinander abhängig zu sein;
    und wobei die Synchronisationsmittel (24) des Halters (14) an dem Abschnitt zwischen dem ersten und dem zweiten Drehgelenk (19a, 19b) angeordnet sind; und
    die Synchronisationsmittel (24) umfassen Formelemente, die an dem ersten und dem zweiten Klemmarm (18a, 18b) ausgebildet sind und angeordnet sind, um Synchronisationsbewegungen zwischen den Klemmarmen (18a, 18b) in beiden Laufrichtungen der Klemmarme zu übertragen;
    dadurch gekennzeichnet, dass
    der erste Klemmarm (18a) und der zweite Klemmarm (18b) mindestens auf dem Abschnitt der Formflächen (29, 32a, 32b) ineinander verschachtelt sind;
    die Formflächen (29, 32a, 32b) einen Verbindungskanal (30) definieren;
    und einen Verbindungsstift (25) in dem Verbindungskanal (30) angeordnet ist, wobei der Verbindungsstift (25) eine Bewegung zwischen den Formflächen (29, 32a, 32b) der Klemmarme (18a, 18b) überträgt.
  4. Halter nach Anspruch 3, dadurch gekennzeichnet, dass
    der erste Klemmarm (18a) mindestens zwei erste Verbindungsnocken (27) an dem Abschnitt zwischen den Drehgelenken (19a, 19b) umfasst, wobei die Nocken in einem axialen Abstand voneinander angeordnet sind;
    der zweite Klemmarm (18b) mindestens zwei zweite Verbindungsnocken (28) an dem Abschnitt zwischen den Drehgelenken (19a, 19b) umfasst, wobei die Nocken in einem axialen Abstand voneinander angeordnet sind;
    die ersten Verbindungsnocken (27) und die zweiten Verbindungsnocken (28) verschachtelt sind;
    die ersten Verbindungsnocken (27) und die zweiten Verbindungsnocken (28) mit Verbindungsschlitzen (29) versehen sind, die sich zueinander öffnen und so angeordnet sind, dass Verbindungsschlitze (29) auf gegenüberliegenden Seiten angeordnet sind um einen Verbindungskanal (30) in einer axialen Richtung zu bilden;
    ein Verbindungsstift (25) an dem Verbindungskanal (30) angeordnet ist und angeordnet ist, um als ein Übertragungselement zwischen dem ersten und dem zweiten Verbindungsnocken (27, 28) zu dienen; und
    der Verbindungsstift (25) sich frei in einer vertikalen Richtung bewegen kann, wenn die Klemmarme (18a, 18b) bewegt werden.
  5. Halter nach Anspruch 3, dadurch gekennzeichnet, dass
    der erste Klemmarm (18a) einen Verbindungsstift (25) parallel zu der Mitte (K) an einem Abschnitt zwischen den Drehgelenken (19a, 19b) umfasst, wobei der Stift unbeweglich an dem ersten Klemmarm (18a) befestigt ist;
    der zweite Klemmarm (18b) eine längliche Verbindungsöffnung (32) an dem Abschnitt zwischen den Drehgelenken (19a, 19b) umfasst; und
    der Verbindungsstift (25) durch die Verbindungsöffnung (32) angeordnet ist, wobei sie als Formelemente wirken und Synchronisationsbewegungen zwischen den Klemmarmen (18a, 18b) übertragen.
  6. Halter nach einem der vorstehenden Ansprüche 3 bis 5, dadurch gekennzeichnet, dass
    der Halter (14) nur einen Stellenantrieb (20) umfasst, der zwischen den Klemmarmen (18a, 18b) angeordnet ist und verbunden ist, um direkt auf beide Klemmarme (18a, 18b) einzuwirken.
  7. Halter nach einem der vorstehenden Ansprüche 3 bis 5, dadurch gekennzeichnet, dass
    der Halter (14) nur einen Stellenantrieb (20) umfasst, der angeordnet ist, um nur auf den ersten Klemmarm (18a) einzuwirken, wobei der zweite Klemmarm (18b) so angeordnet ist, dass er sich unter dem Einfluss der Synchronisationsmittel bewegt.
  8. Halter nach einem der vorstehenden Ansprüche 3 bis 5, dadurch gekennzeichnet, dass
    der Halter (14) mindestens zwei Stellenantriebe (20a, 20b) umfasst, wobei mindestens ein erster Stellenantrieb (20a) verbunden ist, um direkt nur auf den ersten Klemmarm (18a) einzuwirken, und mindestens ein zweiter Stellenantrieb (20b) angeordnet ist, um direkt nur auf den zweiten Klemmarm (18b) einzuwirken.
EP10740972.4A 2009-02-12 2010-02-11 Verfahren zur verwendung eines halters und halter Active EP2396497B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20095134A FI121894B (fi) 2009-02-12 2009-02-12 Menetelmä pitolaitteen käyttämiseksi ja pitolaite
PCT/FI2010/050090 WO2010092237A1 (en) 2009-02-12 2010-02-11 Method for using retainer, and retainer

Publications (3)

Publication Number Publication Date
EP2396497A1 EP2396497A1 (de) 2011-12-21
EP2396497A4 EP2396497A4 (de) 2017-05-24
EP2396497B1 true EP2396497B1 (de) 2018-05-30

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EP10740972.4A Active EP2396497B1 (de) 2009-02-12 2010-02-11 Verfahren zur verwendung eines halters und halter

Country Status (7)

Country Link
EP (1) EP2396497B1 (de)
JP (1) JP5487210B2 (de)
CN (1) CN102216555B (de)
AU (1) AU2010212736B2 (de)
CA (1) CA2734361C (de)
FI (1) FI121894B (de)
WO (1) WO2010092237A1 (de)

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WO2013075033A1 (en) * 2011-11-18 2013-05-23 Longyear Tm, Inc. Self-centering clamping device
US9447645B2 (en) 2012-03-29 2016-09-20 Black Dog Industries Llc Breakout wrench assemblies and methods
CN102730550A (zh) * 2012-06-26 2012-10-17 三一集团有限公司 吊具及具有其的工程机械
SE537994C2 (sv) * 2012-08-30 2016-01-26 Atlas Copco Rock Drills Ab Förfarande vid en borrstödsanordning, borrstödsanordning, fordon jämte datorprogram och datorprogramprodukt vid enborrstödsanordning
CN107956435B (zh) * 2016-10-18 2019-07-19 中国石油化工股份有限公司 一种连续油管安全机构
CN110118668B (zh) * 2019-05-13 2021-11-05 临沂大学 一种用于研究生物化石带的剖面岩层取样装置
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FI20095134A (fi) 2010-08-13
AU2010212736B2 (en) 2013-01-10
FI20095134A0 (fi) 2009-02-12
CN102216555A (zh) 2011-10-12
CN102216555B (zh) 2014-10-01
EP2396497A1 (de) 2011-12-21
JP5487210B2 (ja) 2014-05-07
EP2396497A4 (de) 2017-05-24
CA2734361C (en) 2012-11-06
FI121894B (fi) 2011-05-31
JP2012504721A (ja) 2012-02-23
CA2734361A1 (en) 2010-08-19
AU2010212736A1 (en) 2011-06-30

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