EP0866210B1 - Method for operating a tool and apparatus for transmission of rotary torque and speed of rotation of a drive unit to that tool - Google Patents
Method for operating a tool and apparatus for transmission of rotary torque and speed of rotation of a drive unit to that tool Download PDFInfo
- Publication number
- EP0866210B1 EP0866210B1 EP98104400A EP98104400A EP0866210B1 EP 0866210 B1 EP0866210 B1 EP 0866210B1 EP 98104400 A EP98104400 A EP 98104400A EP 98104400 A EP98104400 A EP 98104400A EP 0866210 B1 EP0866210 B1 EP 0866210B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hydraulic
- rotation
- tool
- head
- grab
- 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.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims description 10
- 230000005540 biological transmission Effects 0.000 title abstract description 6
- 239000012530 fluid Substances 0.000 claims description 12
- BTCSSZJGUNDROE-UHFFFAOYSA-N gamma-aminobutyric acid Chemical compound NCCCC(O)=O BTCSSZJGUNDROE-UHFFFAOYSA-N 0.000 claims description 3
- 230000004075 alteration Effects 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 4
- 239000011435 rock Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C3/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith and intended primarily for transmitting lifting forces to loose materials; Grabs
-
- 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
- E21B11/00—Other drilling tools
- E21B11/04—Boring grabs
-
- 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
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
-
- 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
- E21B4/00—Drives for drilling, used in the borehole
Definitions
- the invention relates to a method for operating a Work module, in particular a hydraulic gripper, which when drilling a borehole with a power turret and a drill pipe to remove obstacles, for example of rock, boulders etc. becomes.
- a gripper tool for example a hydraulic gripper, which with an additional device for the gripper tool is operated.
- the additional device must be provided at the borehole become.
- the invention has for its object to provide a method for operating a work module, such as a hydraulic gripper, and a device which make drilling and removing obstacles in a borehole extremely efficient in terms of equipment and in terms of time and costs.
- a work module such as a hydraulic gripper
- the task is procedurally characterized by the features of the claim 1 and device-wise by the features of the claim 6 solved.
- An essential basic idea of the invention is to use a tool that is designed in this way is that mechanical quantities, namely torque M and speed n, for example a turret with drill pipe, optionally and for a definable period of time in converts hydraulic power.
- any hydraulically actuated module can be used as the work module Unit or device or tool can be used.
- Method and the device is the transfer of Torque and speed of a rotary head with a Kelly rod in a hydraulic grab considered as a work module.
- Speed and torque of the Kelly bar are with an additional work tool on the hydraulic gripper transfer.
- the work equipment is designed in this way and arranged between the drill pipe and hydraulic gripper, that speed and torque by changing the direction of rotation is converted into hydraulic power.
- This hydraulic Performance is at least the hydraulic gripper to exercise another function.
- the supply of the locking cylinders of the hydraulic gripper is essential with hydraulic fluid using a Hydraulic pump driven by the drill pipe becomes.
- the hydraulic head which is connected to the drill pipe, the rotary movements the drill pipe onto the work module, e.g. on the Hydraulic gripper, transmits.
- the open gripper blades can be placed on the bottom of the borehole be turned into the ground.
- the hydraulic head has Gearbox on which the speed of the drill string around increases a factor i and at the same time the torque of the Drill pipe reduced by the same factor.
- a freewheel is arranged for the transmission and the hydraulic pump, which is a speed transfer into the hydraulic pump allows in a first direction of rotation, but in the opposite direction of rotation locks.
- Grab blades in a direction of rotation of the drill pipe be turned into the ground.
- the hydraulic pump is driven in the direction of rotation and hydraulic cylinder of the work module actuated, in which Hydraulic fluid from the hydraulic pump into the hydraulic cylinder is promoted.
- a directional valve is provided to open the gripper blades, which has a toggle function to reverse the Hydraulic fluid flow is assigned.
- the work module or the hydraulic gripper with rock etc. is filled, it is attached to the drill pipe promoted the surface. It is advantageous if the hydraulic gripper pulled against a stop on the power turret can be. This is due to the tractive forces exerted Directional control valve switched accordingly and the rotary movement of the Drill pipe in hydraulic energy to open the grab buckets converted.
- the working means according to the invention between an aggregate, whose torque and speed is transmitted, for example a power turret, and a work module, for example a drilling gripper module, is for hydraulic consumers in the broadest sense.
- a work module for example a drilling gripper module
- Gripper module or hydraulic gripper can also be hydraulic driven pumps, hammer mechanisms or motors via a rotary drive with circumferential and pressure force and moved hydraulically by changing the direction of rotation, be pivoted, for example.
- Fig. 1 shows a hydraulic head 3, which as a working medium hydraulic power from over a drill pipe 2 mechanical quantities led to a bottom of the borehole, the Torque M and the speed n of the drill string 2, generated.
- the drill pipe 2 is non-rotatable with a power turret (not shown), which represents an aggregate 2, its torque M and speed n transmitted and in hydraulic Power to be converted, connected.
- the hydraulic head 3 has a rotationally fixed with a coupling piece of the drill pipe 2 connected head cover 21st on which there is a head housing via a bearing unit 31 17 connects. With the rotating head housing 17 are connected a gear 7, a freewheel 11 and one Hydraulic pump 9, which are surrounded by the head housing 17.
- a switch housing 15, which has a switching element on the bottom, e.g. a spring-biased switch cam 16 and surrounds the head housing 17 to which it is connected in a rotationally fixed manner is via a work module 5 (see FIGS. 4 and 5), which stands on a borehole bottom (not shown), held non-rotatably.
- the transmission 7 which for example can be designed as a planetary gear, and having a gear ratio i reduces the input torque M by 1 / i times and increases the input speed n by the same factor i.
- the transmission output shaft 23 drives via a clutch 13 a drive shaft 24 of the freewheel 11, which at the first Direction of rotation torque M and speed n unaffected via a clutch 14 to a drive shaft of the hydraulic pump 9 passes on.
- the hydraulic pump 9 sucks out a hydraulic fluid a tank 27 and transmits speed and torque in volume flow and pressure.
- the hydraulic fluid is on the High-pressure side of the hydraulic pump 9 via a hydraulic line 18 to a valve 20, for example a 4/2-way valve to the hydraulic consumer, in this case to hydraulic cylinders 6 of the hydraulic gripper 5 (see FIG. 4 and 5) directed.
- a hydraulic return line 19 and the directional control valve 20 is guided back into the tank 27.
- a second and opposite direction of rotation Direction of rotation of the drill pipe 2 can rotate on the work module 5 are transmitted when the freewheel 11 in the second direction of rotation is blocked, i.e. a freewheel inner part 12 and one rigidly connected to the head housing 17 Freewheel outer ring 10 are coupled together.
- An output shaft 25 of the freewheel 11 can with respect to the Head housing 17 no longer exercise relative rotation, whereby the transmission output shaft 23 with 1 / i-fold drill pipe torque is held. Speed and torque transmitted to the head housing 17 via the gear housing 7, which is rotatably connected to the switch housing 15 is.
- the work module 5 firmly connected to the switch housing 15 is now with the torque and speed of the drill string 2 driven so that in this second direction of rotation the open gripper blades 4 (see FIGS. 4 and 5) in the bottom of a borehole can be rotated.
- Switch housing 15 with spring-loaded switching cam 16 offers the possibility of two different flow directions to realize the hydraulic fluid without the work module, for example a hydraulic gripper, and the hydraulic head 3 from a borehole for switching purposes must be transported out.
- the two different ones Directions of hydraulic fluid are reached when an additional load on the Hydraulic head 3 can be abandoned.
- the switch housing 15 is provided with a spring device 16 and enables Relative movements to the drill pipe 2, which for Circuit of the directional valve 20 can be used.
- the Switching of the directional valve 20 as a function of a load is apparent from Fig. 2. In this position the hydraulic gripper 5 (not shown) on the The bottom of the borehole and the drill pipe 2 will be loaded the switch housing 15 is exerted, whereby the directional control valve 20 switched and the direction of flow of the hydraulic fluid is turned over.
- Fig. 3 shows a further switching state.
- tensile forces act on the switch housing 15, which compared to the state of FIGS. 1 and 2 up to a cover-side stop 33 towards the bottom of the borehole is adjusted.
- This adjustment comes from the spring device 16 out.
- Hydraulic actuation of the hydraulic cylinders 6, of which only one cylinder is shown is done when the switch housing 15 and with this the work module 5 against a stop, for example pulling the turret (not shown), so that with simultaneous rotation of the drill pipe in Direction of rotation 2 the gripper blades 4 opened hydraulically become.
- a particularly simple variant of the Hydraulic head can be designed without a switch housing 15. It is then only a volume flow direction of the hydraulic fluid possible. A second possibility would then exist therein, the work module 5 outside the borehole, for example by manual adjustment.
- FIGS. 1 to 3 show a preferred embodiment Device for transmitting the rotational energy of a Power rotary head by means of drill pipe 2 in a hydraulic gripper 5. Training and arrangement of the hydraulic head 3 corresponds to FIGS. 1 to 3. The same features were with provided identical reference numerals.
- Fig. 5 shows a second variant of an inventive Device with drilling gripper module 5, 3.
- the hydraulic head 3 is only shown in outline. Below the hydraulic head 3 are the hydraulic cylinders 6 in axial extension arranged.
- the hydraulic gripper 5 with its gripper blades 4 is also shown in the open position. 5 illustrates the non-rotatable arrangement of the hydraulic gripper 5 on the hydraulic head 3.
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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)
- Marine Sciences & Fisheries (AREA)
- Earth Drilling (AREA)
- Fluid-Pressure Circuits (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Die Bonding (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Manipulator (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zum Betreiben eines Arbeitsmoduls, insbesondere eines Hydraulikgreifers, welcher beim Abbohren eines Bohrloches mit einem Kraftdrehkopf und einem Bohrgestänge zur Beseitigung von Hindernissen, beispielsweise von Felsgestein, Findlingen etc., eingesetzt wird.The invention relates to a method for operating a Work module, in particular a hydraulic gripper, which when drilling a borehole with a power turret and a drill pipe to remove obstacles, for example of rock, boulders etc. becomes.
Bisher ist es üblich, beim Auftreffen des Bohrgestänges auf ein Hindernis ein Spezialgerät einzusetzen, durch welches das Hindernis entfernt wird. In der Regel wird ein Greiferwerkzeug, beispielsweise ein Hydraulikgreifer, eingesetzt, welches mit einem zusätzlichen Gerät zum Greiferwerkzeug betrieben wird.So far it has been common to hit the drill pipe on an obstacle to using a special device through which the obstacle is removed. Usually a gripper tool, for example a hydraulic gripper, which with an additional device for the gripper tool is operated.
Das zusätzliche Gerät muß am Bohrloch bereitgestellt werden.The additional device must be provided at the borehole become.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Betreiben eines Arbeitsmoduls, beispielsweise eines Hydraulikgreifers, und eine Vorrichtung zu schaffen, welche ein Abbohren und das Beseitigen von Hindernissen in einem Bohrloch in gerätetechnischer Hinsicht und bezogen auf den Zeit- und Kostenaufwand außerordentlich effizient gestalten. The invention has for its object to provide a method for operating a work module, such as a hydraulic gripper, and a device which make drilling and removing obstacles in a borehole extremely efficient in terms of equipment and in terms of time and costs.
Verfahrensmäßig wird die Aufgabe durch die Merkmale des Anspruchs
1 und vorrichtungsmäßig durch die Merkmale des Anspruchs
6 gelöst.The task is procedurally characterized by the features of the claim
1 and device-wise by the features of the
Vorteilhafte und zweckmäßige Ausgestaltungen sind in den Unteransprüchen sowie in der Figurenbeschreibung enthalten.Advantageous and expedient configurations are in the Subclaims and included in the description of the figures.
Ein wesentlicher Grundgedanke der Erfindung besteht darin, ein Arbeitsmittel einzusetzen, welches derart ausgebildet ist, daß mechanische Größen, nämlich Drehmoment M und Drehzahl n, beispielsweise eines Kraftdrehkopfes mit Bohrgestänge, wahlweise und für eine vorgebbare Zeitdauer in hydraulische Leistung umwandelt. Die hydraulische Leistung wird auf ein Arbeitsmodul, beispielsweise auf einen Hydraulikgreifer, mit Hilfe einer Hydraulikleitung übertragen, wozu das Arbeitsmodul mit dem Arbeitsmittel verbunden wird.An essential basic idea of the invention is to use a tool that is designed in this way is that mechanical quantities, namely torque M and speed n, for example a turret with drill pipe, optionally and for a definable period of time in converts hydraulic power. The hydraulic performance a work module, for example a hydraulic gripper, transmitted using a hydraulic line, what the work module is connected to the work equipment.
Grundsätzlich kann als Arbeitsmodul jedes hydraulisch betätigbare Aggregat oder Gerät bzw. Werkzeug eingesetzt werden. Als bevorzugtes Anwendungsgebiet des erfindungsgemäßen Verfahrens und der Vorrichtung wird die Übertragung von Drehmoment und Drehzahl eines Kraftdrehkopfes mit einer Kellystange in einen Hydraulikgreifer als Arbeitsmodul betrachtet. Drehzahl und Drehmoment der Kellystange werden über ein zusätzliches Arbeitsmittel auf den Hydraulikgreifer übertragen. Das Arbeitsmittel ist derart ausgebildet und zwischen Bohrgestänge und Hydraulikgreifer angeordnet, daß Drehzahl und Drehmoment durch Änderung der Drehrichtung in hydraulische Leistung umgewandelt wird. Diese hydraulische Leistung wird dem Hydraulikgreifer zur Ausübung wenigstens einer weiteren Funktion zugeführt.Basically, any hydraulically actuated module can be used as the work module Unit or device or tool can be used. As a preferred field of application of the invention Method and the device is the transfer of Torque and speed of a rotary head with a Kelly rod in a hydraulic grab considered as a work module. Speed and torque of the Kelly bar are with an additional work tool on the hydraulic gripper transfer. The work equipment is designed in this way and arranged between the drill pipe and hydraulic gripper, that speed and torque by changing the direction of rotation is converted into hydraulic power. This hydraulic Performance is at least the hydraulic gripper to exercise another function.
Wesentlich ist die Versorgung der Schließzylinder des Hydraulikgreifers mit Hydraulikflüssigkeit mit Hilfe einer Hydraulikpumpe, welche von dem Bohrgestänge angetrieben wird. Gleichzeitig ist vorgesehen, daß der Hydraulikkopf, welcher mit dem Bohrgestänge verbunden ist, die Drehbewegungen des Bohrgestänges auf das Arbeitsmodul, z.B. auf den Hydraulikgreifer, überträgt. Nach dem Absenken des Greifers auf die Bohrlochsohle können die geöffneten Greiferschaufeln in den Boden gedreht werden.The supply of the locking cylinders of the hydraulic gripper is essential with hydraulic fluid using a Hydraulic pump driven by the drill pipe becomes. At the same time, it is provided that the hydraulic head, which is connected to the drill pipe, the rotary movements the drill pipe onto the work module, e.g. on the Hydraulic gripper, transmits. After lowering the gripper The open gripper blades can be placed on the bottom of the borehole be turned into the ground.
In einer bevorzugten Ausbildung weist der Hydraulikkopf ein Getriebe auf, welches die Drehzahl des Bohrgestänges um einen Faktor i erhöht und gleichzeitig das Drehmoment des Bohrgestänges um den gleichen Faktor reduziert. Zwischen dem Getriebe und der Hydraulikpumpe ist ein Freilauf angeordnet, welcher eine Drehzahlübertragung in die Hydraulikpumpe in einer ersten Drehrichtung zuläßt, jedoch in der entgegengesetzten Drehrichtung sperrt. Nach dem Absenken des Hydraulikgreifers auf die Bohrlochsohle können die geöffneten Greiferschaufeln in einer Drehrichtung des Bohrgestänges in den Boden gedreht werden. In der entgegengesetzten Drehrichtung wird die Hydraulikpumpe angetrieben und Hydraulikzylinder des Arbeitsmoduls betätigt, in denen Hydraulikflüssigkeit von der Hydraulikpumpe in die Hydraulikzylinder gefördert wird.In a preferred embodiment, the hydraulic head has Gearbox on which the speed of the drill string around increases a factor i and at the same time the torque of the Drill pipe reduced by the same factor. Between a freewheel is arranged for the transmission and the hydraulic pump, which is a speed transfer into the hydraulic pump allows in a first direction of rotation, but in the opposite direction of rotation locks. After lowering of the hydraulic gripper on the bottom of the borehole can be opened Grab blades in a direction of rotation of the drill pipe be turned into the ground. In the opposite The hydraulic pump is driven in the direction of rotation and hydraulic cylinder of the work module actuated, in which Hydraulic fluid from the hydraulic pump into the hydraulic cylinder is promoted.
Zur Öffnung der Greiferschaufeln ist ein Wegeventil vorgesehen, welchem eine Umschaltfunktion zur Umkehrung des Hydraulikflüssigkeitsstroms zugeordnet ist.A directional valve is provided to open the gripper blades, which has a toggle function to reverse the Hydraulic fluid flow is assigned.
Zweckmäßigerweise werden Zug- und Druckkräfte, welche von dem Bohrgestänge auf den Hydraulikgreifer ausgeübt werden, zum Umschalten des Wegeventils genutzt. In einer vorteilhaften Ausbildung ist eine federvorgespannte Schaltnocke an einem Schaltgehäuse vorgesehen, über welches eine axiale Verschiebung zwischen Bohrgestänge und Arbeitsmodul erfolgt. Expedient tensile and compressive forces, which of the drill pipe is exerted on the hydraulic gripper, used to switch the directional valve. In an advantageous Training is based on a spring-loaded cam a switch housing is provided, via which an axial There is a shift between the drill pipe and the work module.
Wenn das Arbeitsmodul bzw. der Hydraulikgreifer mit Felsgestein u.ä. gefüllt ist, wird er über das Bohrgestänge an die Oberfläche befördert. Es ist vorteilhaft, wenn der Hydraulikgreifer gegen einen Anschlag am Kraftdrehkopf gezogen werden kann. Durch die ausgeübten Zugkräfte wird das Wegeventil entsprechend geschaltet und die Drehbewegung des Bohrgestänges in hydraulische Energie zum Öffnen der Greiferschaufeln umgewandelt.If the work module or the hydraulic gripper with rock etc. is filled, it is attached to the drill pipe promoted the surface. It is advantageous if the hydraulic gripper pulled against a stop on the power turret can be. This is due to the tractive forces exerted Directional control valve switched accordingly and the rotary movement of the Drill pipe in hydraulic energy to open the grab buckets converted.
Das erfindungsgemäße Arbeitsmittel zwischen einem Aggregat, dessen Drehmoment und Drehzahl übertragen wird, beispielsweise einen Kraftdrehkopf, und einem Arbeitsmodul, beispielsweise einem Bohrgreifermodul, ist für Hydraulikverbraucher im weitesten Sinne einzusetzen. Neben dem bevorzugten Greifermodul oder Hydraulikgreifer können auch hydraulisch angetriebene Pumpen, Schlagwerke oder Motoren über einen Drehantrieb mit Umfangs- und Andruckskraft drehbewegt und durch Änderung der Drehrichtung hydraulisch bewegt, beispielsweise verschwenkt werden.The working means according to the invention between an aggregate, whose torque and speed is transmitted, for example a power turret, and a work module, for example a drilling gripper module, is for hydraulic consumers in the broadest sense. In addition to the preferred Gripper module or hydraulic gripper can also be hydraulic driven pumps, hammer mechanisms or motors via a rotary drive with circumferential and pressure force and moved hydraulically by changing the direction of rotation, be pivoted, for example.
Die Erfindung wird nachstehend anhand einer Zeichnung weiter erläutert; in dieser zeigen
- Fig. 1
- einen Hydraulikkopf einer erfindungsgemäßen Vorrichtung zur Übertragung von Drehmoment und Drehzahl eines Kraftdrehkopfes mit Bohrgestänge in ein Arbeitsmittel;
- Fig. 2 und 3
- den Hydraulikkopf nach Fig. 1 in unterschiedlichen Schaltzuständen;
- Fig. 4
- eine erfindungsgemäße Vorrichtung mit einem Hydraulikgreifer als Arbeitsmodul und koaxial zu einem Hydraulikkopf angeordneten Hydraulikzylindern und
- Fig. 5
- eine erfindungsgemäße Vorrichtung mit einem Hydraulikgreifer als Arbeitsmodul und mit in einer axialen Verlängerung eines Hydraulikkopfes angeordneten Hydraulikzylindern.
- Fig. 1
- a hydraulic head of a device according to the invention for transmitting torque and speed of a rotary power head with drill pipe in a working medium;
- 2 and 3
- the hydraulic head of Figure 1 in different switching states.
- Fig. 4
- an inventive device with a hydraulic gripper as a working module and arranged coaxially to a hydraulic head hydraulic cylinders and
- Fig. 5
- a device according to the invention with a hydraulic gripper as a work module and with hydraulic cylinders arranged in an axial extension of a hydraulic head.
Fig. 1 zeigt einen Hydraulikkopf 3, welcher als ein Arbeitsmittel
hydraulische Leistung aus über ein Bohrgestänge
2 zu einer Bohrlochsohle geführten mechanischen Größen, dem
Drehmoments M und der Drehzahl n des Bohrgestänges 2, erzeugt.
Das Bohrgestänge 2 ist drehfest mit einem Kraftdrehkopf
(nicht dargestellt), welcher ein Aggregat 2 darstellt,
dessen Drehmoment M und Drehzahl n übertragen und in hydraulische
Leistung umgewandelt werden soll, verbunden.Fig. 1 shows a
Der Hydraulikkopf 3 weist einen drehfest mit einem Kupplungsstück
des Bohrgestänges 2 verbundenen Kopfdeckel 21
auf, an welchen sich über eine Lagereinheit 31 ein Kopfgehäuse
17 anschließt. Mit dem drehbeweglichen Kopfgehäuse
17 verbunden sind ein Getriebe 7, ein Freilauf 11 und eine
Hydraulikpumpe 9, welche vom Kopfgehäuse 17 umgeben werden.
Ein Schaltgehäuse 15, welches bodenseitig ein Schaltelement,
z.B. eine federvorgespannte Schaltnocke 16, aufweist
und das Kopfgehäuse 17 umgibt, mit dem es drehfest verbunden
ist, wird über ein Arbeitsmodul 5 (siehe Fig. 4 und 5),
welches auf einer Bohrlochsohle (nicht dargestellt) steht,
drehfest gehalten.The
In einer ersten Drehrichtung wird die Rotationsbewegung des
Bohrgestänges 2 von dem Kopfdeckel 21 auf eine Getriebeantriebswelle
22 übertragen. Das Getriebe 7, welches beispielsweise
als ein Planetengetriebe ausgebildet sein kann,
und eine Übersetzung i aufweist, reduziert das Eingangsdrehmoment
M um das 1/i-fache und erhöht die Eingangsdrehzahl
n um den gleichen Faktor i. In a first direction of rotation, the rotational movement of the
Drill pipe 2 from the
Die Getriebeabtriebswelle 23 treibt über eine Kupplung 13
eine Antriebswelle 24 des Freilaufs 11, welcher bei der ersten
Drehrichtung Drehmoment M und Drehzahl n unbeeinflußt
über eine Kupplung 14 auf eine Antriebswelle der Hydraulikpumpe
9 weitergibt.The
Die Hydraulikpumpe 9 saugt eine Hydraulikflüssigkeit aus
einem Tank 27 und überträgt Drehzahl und Drehmoment in Volumenstrom
und Druck. Die Hydraulikflüssigkeit wird auf der
Hochdruckseite der Hydraulikpumpe 9 über eine Hydraulikleitung
18 zu einem Ventil 20, beispielsweise einem 4/2-Wegeventil
zu dem Hydraulikverbraucher, in diesem Falle zu Hydraulikzylindern
6 des Hydraulikgreifers 5 (siehe Fig. 4
und 5) geleitet. Von dem Hydraulikverbraucher 6 wird die
Hydraulikflüssigkeit über eine Hydraulikrückleitung 19 und
das Wegeventil 20 zurück in den Tank 27 geführt.The
Eine zweite und der ersten Drehrichtung entgegengesetzte
Drehrichtung des Bohrgestänges 2 kann drehfest auf das Arbeitsmodul
5 übertragen werden, wenn der Freilauf 11 in der
zweiten Drehrichtung gesperrt ist, d.h. ein Freilaufinnenteil
12 und ein mit dem Kopfgehäuse 17 starr verbundener
Freilaufaußenring 10 miteinander gekoppelt sind.A second and opposite direction of rotation
Direction of rotation of the drill pipe 2 can rotate on the
Eine Abtriebswelle 25 des Freilaufs 11 kann gegenüber dem
Kopfgehäuse 17 keine Relativdrehung mehr ausüben, wodurch
die Getriebeabtriebswelle 23 mit 1/i-fachen Bohrgestänge-Drehmoment
festgehalten wird. Drehzahl und Drehmoment werden
über das Getriebegehäuse 7 auf das Kopfgehäuse 17 übertragen,
welches drehfest mit dem Schaltgehäuse 15 verbunden
ist.An
Das mit dem Schaltgehäuse 15 fest verbundene Arbeitsmodul 5
wird nun mit dem Drehmoment und der Drehzahl des Bohrgestänges
2 angetrieben, so daß in dieser zweiten Drehrichtung
die geöffneten Greiferschaufeln 4 (siehe Fig. 4 und 5) in
den Boden eines Bohrlochs gedreht werden können.The
Das Schaltgehäuse 15 mit federvorgespannter Schaltnocke 16
bietet die Möglichkeit, zwei verschiedene Volumenstromrichtungen
der Hydraulikflüssigkeit zu realisieren, ohne daß
das Arbeitsmodul, beispielsweise ein Hydraulikgreifer, sowie
der Hydraulikkopf 3 aus einem Bohrloch zu Umschaltzwekken
herausbefördert werden muß. Die zwei unterschiedlichen
Richtungen der Hydraulikflüssigkeit werden erreicht, wenn
über das Bohrgestänge 2 eine zusätzliche Auflast auf den
Hydraulikkopf 3 aufgegeben werden kann. Das Schaltgehäuse
15 ist mit einer Federvorrichtung 16 versehen und ermöglicht
Relativbewegungen zum Bohrgestänge 2, welche zur
Schaltung des Wegeventils 20 ausgenutzt werden können. Die
Schaltung des Wegeventils 20 in Abhängigkeit von einer Auflast
geht aus Fig. 2 hervor. In dieser Stellung befindet
sich der Hydraulikgreifer 5 (nicht dargestellt) auf der
Bohrlochsohle und vom Bohrgestänge 2 wird eine Auflast auf
das Schaltgehäuse 15 ausgeübt, wodurch das Wegeventil 20
umgeschaltet und die Strömungsrichtung der Hydraulikflüssigkeit
umgedreht wird.Switch
Fig. 3 zeigt einen weiteren Schaltzustand. In diesem
Schaltzustand wirken Zugkräfte auf das Schaltgehäuse 15,
welches im Vergleich zum Zustand der Fig. 1 und 2 bis zu
einem deckelseitigen Anschlag 33 in Richtung Bohrlochsohle
verstellt wird. Diese Verstellung geht aus der Federvorrichtung
16 hervor. Eine hydraulische Betätigung der Hydraulikzylinder
6, von denen jeweils nur ein Zylinder dargestellt
ist, erfolgt, wenn das Schaltgehäuse 15 und mit
diesem das Arbeitsmodul 5 gegen einen Anschlag, beispielsweise
am Kraftdrehkopf (nicht dargestellt) gezogen wird,
so daß bei gleichzeitiger Drehung des Bohrgestänges in
Drehrichtung 2 die Greiferschaufeln 4 hydraulisch geöffnet
werden.Fig. 3 shows a further switching state. In this
Switching state, tensile forces act on the
Grundsätzlich kann eine besonders einfache Variante des
Hydraulikkopfes ohne Schaltgehäuse 15 ausgebildet sein. Es
ist dann lediglich eine Volumenstromrichtung der Hydraulikflüssigkeit
möglich. Eine zweite Möglichkeit bestünde dann
darin, das Arbeitsmodul 5 außerhalb des Bohrloches, beispielsweise
durch Handverstellung, zu betätigen.Basically, a particularly simple variant of the
Hydraulic head can be designed without a
Fig. 4 zeigt in einer bevorzugten Ausbildungsvariante eine
Vorrichtung zur Übertragung der Rotationsenergie eines
Kraftdrehkopfes mittels Bohrgestänge 2 in einen Hydraulikgreifer
5. Ausbildung und Anordnung des Hydraulikkopfes 3
entspricht den Fig. 1 bis 3. Gleiche Merkmale wurden mit
identischen Bezugszeichen versehen.4 shows a preferred embodiment
Device for transmitting the rotational energy of a
Power rotary head by means of drill pipe 2 in a
Die Vorrichtung nach Fig. 4 weist koaxial zum Hydraulikkopf
3 angeordnete Hydraulikzylinder 6 auf, welche über Anlenkpunkte
32 die Greiferschaufeln 4 des Hydraulikgreifers
5 aus einer geschlossenen in die dargestellte geöffnete
Stellung verstellen. In dieser geöffneten Stellung kann der
Hydraulikgreifer 5 mit dem Hydraulikkopf 3 einer Drehbewegung
unterworfen werden, welche der Drehbewegung des Bohrgestänges
2 entspricht. Über entsprechend ausgebildete endseitige
Elemente 33 der Greiferschaufeln 4 dreht sich das
auf eine Bohrlochsohle abgesenkte Bohrgreifermodul 5, 3 in
den Boden, welcher zertrümmert und nachfolgend über die
hydraulisch in Schließstellung gebrachten Greiferschaufeln
4 aus dem Bohrloch gefördert werden kann.4 has coaxial with the
Fig. 5 zeigt eine zweite Variante einer erfindungsgemäßen
Vorrichtung mit Bohrgreifermodul 5, 3. Der Hydraulikkopf 3
ist nur in Umrissen dargestellt. Unterhalb des Hydraulikkopfes
3 sind die Hydraulikzylinder 6 in axialer Verlängerung
angeordnet. Der Hydraulikgreifer 5 mit seinen Greiferschaufeln
4 ist ebenfalls in geöffneter Stellung gezeigt.
Insbesondere Fig. 5 verdeutlicht die drehfeste Anordnung
des Hydraulikgreifers 5 am Hydraulikkopf 3.Fig. 5 shows a second variant of an inventive
Device with
Claims (18)
- Method for operating a tool (5) by means of a unit (2) whose rotary torque and speed of rotation are transmitted, characterized in that
the speed of rotation and the rotary torque of the unit (2) are transmitted to the tool (5) through a working means (3) and by changing the direction of rotation the speed of rotation and the rotary torque are temporarily transformed in said working means (3) into hydraulic power which is supplied to the tool (5) in order to carry out at least one further function. - Method according to claim 1,
characterized in that
a rotary drive head with drill pipes (2) is employed as unit (2) for transmitting rotary torque and speed of rotation and a borehole is sunk,
to remove obstacles in the borehole a hydraulic grab (5) is connected as tool with the drill pipes (2) through a hydraulic head (3) as working means,
the hydraulic grab (5) is placed onto a borehole bottom and subsequently drilled into the earth with opened grab spades (4) when the rotary torque and the speed of rotation are transmitted through the hydraulic head (3) to the hydraulic grab (5) in a first direction of rotation, and
to remove the obstacle from the borehole the grab spades (4) are closed hydraulically when a hydraulic pump (9) is driven by the drill pipes (2) through the hydraulic head (3) in the opposite direction of rotation. - Method according claim 2,
characterized in that
hydraulic fluid is conveyed from the hydraulic pump (9) to hydraulic cylinders (6) of the hydraulic grab (5) and the grab spades (4) are closed. - Method according to claim 2 or 3,
characterized in that
in order to open the grab spades (4) the flow of the hydraulic fluid is reversed and through tensile or compressive forces exerted by the drill pipes (2) onto the hydraulic grab (5) a directional control valve (20) is switched by means of a switching means (15, 16). - Method according to any one of claims 2 to 4,
characterized in that
the filled hydraulic grab (5) is transported to the surface by means of the drill pipes (2) and pulled against a stop at the rotary drive head, whereby tensile forces are exerted and the grab spades (4) are opened whilst the drill pipes (2) are being rotated simultaneously. - Device for transmitting rotary torques and speeds of rotation of a unit (2) to a tool (5), in particular for carrying out the method according to any one of claims 1 to 5,
characterized in that
a working means (3) is arranged between the unit (2) and the tool (5) and connected therewith and
the working means (3) transmits the rotary torque and the speed of rotation of the unit (2) to the tool (5) in a first direction of rotation and in a second direction of rotation transforms the rotary torque and the speed of rotation into hydraulic power which can be supplied to the tool (5) as at least one additional function. - Device according to claim 6,
characterized in that
a rotary drive head with drill pipes (2) is arranged as unit, a hydraulic head (3) as working means and a hydraulic grab (5) as tool and in that the hydraulic head (3) is designed and connected with the hydraulic grab (5) in such a manner that the former is rotatable with the drill pipes (2) and hydraulically operable. - Device according to claim 7,
characterized in that
the hydraulic head (3) has a gear (7) which increases the speed of rotation of the drill pipes (2) by a factor i and reduces the rotary torque by the same factor, and a free-wheeling (11) is provided which transmits the speed of rotation of the gear (7) to a hydraulic pump (9) in a first direction of rotation and blocks in the opposite direction of rotation. - Device according to claim 8,
characterized in that
in a first direction of rotation the rotary torque and the speed of rotation of the drill pipes (2) can be transmitted through a head cover (21) and a head housing (17) to the gear (7) and without influence to the free-wheeling (11) and the drive shaft of the hydraulic pump (9). - Device according to claim 8 or 9,
characterized in that
in an opposite direction of rotation the free-wheeling (11) is blocked, a gear drive shaft (23) is kept at 1/i-fold drill pipe torque and the speed of rotation and rotary torque can be transmitted through the gear housing (7) and the head housing (17) as well as through the rotationally fixed feed box (15) to the tool (5) which is fixedly connected to the feed box (15). - Device according to claim 9 or 10,
characterized in that
the feed box (15) is provided for switching a valve (20), in particular a 4/2-directional control valve arranged in the hydraulic supply line (18) and the hydraulic removal line (19) of a tool (5) . - Device according to any one of the preceding claims 6 to 11,
characterized in that
hydraulic cylinders (6) of a hydraulic grab (5) are arranged approximately coaxially to the hydraulic head (3) and grab spades (4) are hinged below the hydraulic head (3). - Device according to any one of the preceding claims 3 to 11,
characterized in that
hydraulic cylinders (6) of a hydraulic grab (5) are arranged in the axial extension of the hydraulic head (3). - Device according to claim 6,
characterized in that
a belling bucket is employed as tool (5). - Device according to claim 6,
characterized in that
a core batcher or core breaker is employed as tool (5). - Device according to claim 6,
characterized in that
roller bit core barrels are employed as drill pipes (2) and swing rollers are employed as tool (5). - Device according to claim 6,
characterized in that
hydraulic consuming devices, e.g. hydraulically driven pumps, striking units or engines, are employed as working means (3). - Device according to claim 7,
characterized in that
the hydraulic head (3) is provided with an upward lying high torque free-wheeling and a small torque gear lying underneath.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19711479A DE19711479C2 (en) | 1997-03-19 | 1997-03-19 | Method for operating a work module and device |
| DE19711479 | 1997-03-19 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0866210A2 EP0866210A2 (en) | 1998-09-23 |
| EP0866210A3 EP0866210A3 (en) | 2001-01-10 |
| EP0866210B1 true EP0866210B1 (en) | 2004-01-14 |
Family
ID=7823917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98104400A Expired - Lifetime EP0866210B1 (en) | 1997-03-19 | 1998-03-11 | Method for operating a tool and apparatus for transmission of rotary torque and speed of rotation of a drive unit to that tool |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0866210B1 (en) |
| JP (1) | JPH10325289A (en) |
| KR (1) | KR100546497B1 (en) |
| CN (1) | CN1196436A (en) |
| AT (1) | ATE257902T1 (en) |
| CZ (1) | CZ294862B6 (en) |
| DE (2) | DE19711479C2 (en) |
| ES (1) | ES2212159T3 (en) |
| HK (1) | HK1011556A1 (en) |
| PL (1) | PL186953B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8356161B2 (en) | 2001-03-22 | 2013-01-15 | Qst Holdings Llc | Adaptive processor for performing an operation with simple and complex units each comprising configurably interconnected heterogeneous elements |
| US8533431B2 (en) | 2001-03-22 | 2013-09-10 | Altera Corporation | Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements |
| US8767804B2 (en) | 2001-05-08 | 2014-07-01 | Qst Holdings Llc | Method and system for reconfigurable channel coding |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7752419B1 (en) | 2001-03-22 | 2010-07-06 | Qst Holdings, Llc | Method and system for managing hardware resources to implement system functions using an adaptive computing architecture |
| US7653710B2 (en) | 2002-06-25 | 2010-01-26 | Qst Holdings, Llc. | Hardware task manager |
| US20040133745A1 (en) | 2002-10-28 | 2004-07-08 | Quicksilver Technology, Inc. | Adaptable datapath for a digital processing system |
| US7046635B2 (en) | 2001-11-28 | 2006-05-16 | Quicksilver Technology, Inc. | System for authorizing functionality in adaptable hardware devices |
| US6986021B2 (en) | 2001-11-30 | 2006-01-10 | Quick Silver Technology, Inc. | Apparatus, method, system and executable module for configuration and operation of adaptive integrated circuitry having fixed, application specific computational elements |
| US8412915B2 (en) | 2001-11-30 | 2013-04-02 | Altera Corporation | Apparatus, system and method for configuration of adaptive integrated circuitry having heterogeneous computational elements |
| US7215701B2 (en) | 2001-12-12 | 2007-05-08 | Sharad Sambhwani | Low I/O bandwidth method and system for implementing detection and identification of scrambling codes |
| US7403981B2 (en) | 2002-01-04 | 2008-07-22 | Quicksilver Technology, Inc. | Apparatus and method for adaptive multimedia reception and transmission in communication environments |
| US7660984B1 (en) | 2003-05-13 | 2010-02-09 | Quicksilver Technology | Method and system for achieving individualized protected space in an operating system |
| US7328414B1 (en) | 2003-05-13 | 2008-02-05 | Qst Holdings, Llc | Method and system for creating and programming an adaptive computing engine |
| US8108656B2 (en) | 2002-08-29 | 2012-01-31 | Qst Holdings, Llc | Task definition for specifying resource requirements |
| US7937591B1 (en) | 2002-10-25 | 2011-05-03 | Qst Holdings, Llc | Method and system for providing a device which can be adapted on an ongoing basis |
| US8276135B2 (en) | 2002-11-07 | 2012-09-25 | Qst Holdings Llc | Profiling of software and circuit designs utilizing data operation analyses |
| CN107780862B (en) * | 2017-09-22 | 2023-07-14 | 中国石油天然气集团有限公司 | Fishing device for underground throttler |
| CN109611066B (en) * | 2018-12-14 | 2021-05-07 | 黑龙江永研科技有限公司 | Efficient dropping and fishing device for water distributor of oil well and water well |
| KR102384208B1 (en) * | 2020-02-06 | 2022-04-07 | 흥진에프에이(주) | Hanger grap for crane |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3194329A (en) * | 1964-06-11 | 1965-07-13 | Calweld Inc | Hydraulic grab bucket |
| DE2718434C2 (en) * | 1977-04-26 | 1979-06-28 | Fa. Johannes Fuchs, 7257 Ditzingen | Gripper hinged to the boom of a work machine |
| SE429149B (en) * | 1979-03-30 | 1983-08-15 | Gote Ingemar Hansson | MACHINE FOR SINGLE DRILLING IN BERG |
| JPS5721635A (en) * | 1980-07-15 | 1982-02-04 | Ryutaro Yoritomi | Weight-striking type grab bucket |
| JPH09158658A (en) * | 1995-12-11 | 1997-06-17 | Itoo:Kk | Bucket rotary excavator |
-
1997
- 1997-03-19 DE DE19711479A patent/DE19711479C2/en not_active Expired - Fee Related
-
1998
- 1998-03-11 ES ES98104400T patent/ES2212159T3/en not_active Expired - Lifetime
- 1998-03-11 AT AT98104400T patent/ATE257902T1/en not_active IP Right Cessation
- 1998-03-11 EP EP98104400A patent/EP0866210B1/en not_active Expired - Lifetime
- 1998-03-11 DE DE59810568T patent/DE59810568D1/en not_active Expired - Fee Related
- 1998-03-18 CZ CZ1998828A patent/CZ294862B6/en not_active IP Right Cessation
- 1998-03-18 KR KR1019980009154A patent/KR100546497B1/en not_active IP Right Cessation
- 1998-03-18 JP JP10068229A patent/JPH10325289A/en not_active Withdrawn
- 1998-03-19 CN CN98108250A patent/CN1196436A/en active Pending
- 1998-03-19 PL PL98325438A patent/PL186953B1/en not_active IP Right Cessation
- 1998-12-04 HK HK98112801A patent/HK1011556A1/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8356161B2 (en) | 2001-03-22 | 2013-01-15 | Qst Holdings Llc | Adaptive processor for performing an operation with simple and complex units each comprising configurably interconnected heterogeneous elements |
| US8533431B2 (en) | 2001-03-22 | 2013-09-10 | Altera Corporation | Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements |
| US8543795B2 (en) | 2001-03-22 | 2013-09-24 | Altera Corporation | Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements |
| US9164952B2 (en) | 2001-03-22 | 2015-10-20 | Altera Corporation | Adaptive integrated circuitry with heterogeneous and reconfigurable matrices of diverse and adaptive computational units having fixed, application specific computational elements |
| US8767804B2 (en) | 2001-05-08 | 2014-07-01 | Qst Holdings Llc | Method and system for reconfigurable channel coding |
Also Published As
| Publication number | Publication date |
|---|---|
| CZ82898A3 (en) | 1998-10-14 |
| JPH10325289A (en) | 1998-12-08 |
| KR100546497B1 (en) | 2006-04-17 |
| DE59810568D1 (en) | 2004-02-19 |
| HK1011556A1 (en) | 1999-07-16 |
| ATE257902T1 (en) | 2004-01-15 |
| CZ294862B6 (en) | 2005-04-13 |
| EP0866210A3 (en) | 2001-01-10 |
| CN1196436A (en) | 1998-10-21 |
| PL325438A1 (en) | 1998-09-28 |
| KR19980080381A (en) | 1998-11-25 |
| PL186953B1 (en) | 2004-04-30 |
| ES2212159T3 (en) | 2004-07-16 |
| DE19711479C2 (en) | 2002-10-24 |
| EP0866210A2 (en) | 1998-09-23 |
| DE19711479A1 (en) | 1998-09-24 |
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