EP2236734B1 - Unité d'entraînement avec un dispositif d'alignement - Google Patents

Unité d'entraînement avec un dispositif d'alignement Download PDF

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Publication number
EP2236734B1
EP2236734B1 EP09004988A EP09004988A EP2236734B1 EP 2236734 B1 EP2236734 B1 EP 2236734B1 EP 09004988 A EP09004988 A EP 09004988A EP 09004988 A EP09004988 A EP 09004988A EP 2236734 B1 EP2236734 B1 EP 2236734B1
Authority
EP
European Patent Office
Prior art keywords
drive
carriage
pipe drive
tube drive
fastening
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
EP09004988A
Other languages
German (de)
English (en)
Other versions
EP2236734A1 (fr
Inventor
Peter Josef Unglert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bauer Maschinen GmbH
Original Assignee
Bauer Maschinen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bauer Maschinen GmbH filed Critical Bauer Maschinen GmbH
Priority to ES09004988T priority Critical patent/ES2367556T3/es
Priority to EP09004988A priority patent/EP2236734B1/fr
Priority to AT09004988T priority patent/ATE520857T1/de
Publication of EP2236734A1 publication Critical patent/EP2236734A1/fr
Application granted granted Critical
Publication of EP2236734B1 publication Critical patent/EP2236734B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/002—Drilling with diversely driven shafts extending into the borehole
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives
    • 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
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods

Definitions

  • the invention relates to a drive unit for a drilling or construction equipment according to the preamble of claim 1.
  • Such a drive unit has a carriage, which is designed for the method on a mast of the drilling or construction equipment along a track axis.
  • the drive unit further includes an outer tube drive for rotatably driving a first tubular drill string about a first longitudinal axis and an inner tube drive for rotationally driving a second drill string disposed within the first drill string about a second longitudinal axis.
  • the outer tube drive and the inner tube drive are arranged on the carriage and the two longitudinal axes are substantially coaxial with each other and form a common drilling axis.
  • the invention further relates to a drilling or construction equipment with a mast.
  • a generic drive unit is for example from the DE 10 2006 059 171 B3 or the DE 44 02 487 A1 out.
  • Double head drilling is a drilling method in which two generally counter-rotating auger drives, namely an outer tube drive and an inner tube drive, simultaneously rotate an outer drill string and an inner drill string.
  • the outer drill string is usually a hollow tube, which may also be referred to as a drill pipe.
  • the inner drill string is concentrically disposed within the drill pipe and may include, for example, a drill bit.
  • the drilling tool formed from outer drill pipe and inner drill rod which can also be referred to as a double rod, has a high rigidity. Double-head drilling is therefore preferred in the production of overcut bored pile walls.
  • the invention is therefore based on the object to provide a drive unit for a drilling or construction equipment and a corresponding drilling or construction equipment, which have the lowest possible load on the bearing of the auger drives.
  • the drive unit according to the invention is characterized in that an adjusting device is provided, with which an alignment of at least one of the longitudinal axes of the outer tube drive or the inner tube drive to the travel axis of the carriage is variable and adjustable.
  • the invention is based on the recognition that in operation the components are not exactly aligned, which leads to a forced gear.
  • an angled or staggered position of the longitudinal axis of the outer tube drive and / or the longitudinal axis of the inner tube drive to the travel axis of the carriage can lead to a significantly increased bearing load on the corresponding drill drive.
  • a basic idea of the invention is therefore to readjust by means of an adjusting device at least the longitudinal axis of the outer tube drive or the longitudinal axis of the inner tube drive to the travel axis of the carriage in the millimeter or centimeter range, so that they run as parallel as possible.
  • an adjusting device at least the longitudinal axis of the outer tube drive or the longitudinal axis of the inner tube drive to the travel axis of the carriage in the millimeter or centimeter range, so that they run as parallel as possible.
  • the longitudinal axis of a drill drive but both longitudinal axes are aligned to the travel axis of the carriage.
  • the common drilling axis is substantially parallel to the travel axis the carriage, which in turn runs substantially parallel to a longitudinal axis of the mast.
  • the outer tube drive and / or the inner tube drive is mounted on the carriage about a transverse axis which is substantially perpendicular to the travel axis of the carriage, pivotably.
  • the drilling drives can be mounted, for example, in each case via two rod-like or wave-like suspensions on the carriage. These suspensions thus form an axis of rotation about which the drilling drives are rotatable or pivotable.
  • the transverse axis preferably runs parallel to a guide surface between the carriage and the mast.
  • the adjusting device comprises adjusting means, in particular adjusting screws and / or adjusting cylinders, for adjusting the outer tube drive and / or the inner tube drive relative to the carriage.
  • the adjusting means are preferably connected on the one hand to the carriage and on the other hand to the corresponding drill drive, so that the outer tube drive and the inner tube drive can each be pivoted independently relative to the carriage.
  • the adjusting means can in principle be designed as desired. However, it is particularly preferred if the adjusting means have adjusting screws, because they allow by their thread a particularly fine adjustment of the outer tube drive or the inner tube drive.
  • the auger drives are exposed to great forces during their operation. It is therefore preferred according to the invention that fastening means, in particular fastening screws and / or fastening bolts, are provided, with which the outer tube drive and / or the inner tube drive can be fixed in a defined orientation on the carriage. Appropriately, the outer tube drive or the inner tube drive can be pivoted by means of the adjusting device in the desired orientation and then fixed by means of the fastening means in this position. In the operation of the drilling or construction equipment, the adjusting device is thus exposed to no greater forces, so that the Justification must be dimensioned only for the purpose of pivoting the corresponding drill drive.
  • fastening means in particular fastening screws and / or fastening bolts
  • a structurally particularly simple and at the same time reliable fixing is achieved in that a flange fastening is provided for fastening the outer tube drive to the slide, which has a flange element with through holes and fastening means, in particular fastening screws and / or fastening bolts.
  • the fastening means in particular fastening screws and / or fastening bolts are arranged with play in the through holes.
  • the through holes are adapted in their shape to the path of movement of the fastening means and designed, for example, ring-segment-shaped.
  • the flange element with the through-holes is rigidly connected to the carriage.
  • the attachment means are fixed or releasably connected to the corresponding drill drive and passed through the through holes in the flange. Upon pivoting of the corresponding drill drive, the fasteners move within the fixed through holes of the flange.
  • the flange element with the through-holes is rigidly connected to the outer tube drive and / or the inner tube drive. Accordingly, the fastening means are fixedly or detachably connected to the carriage and through the through holes in the flange member passed. Upon pivoting of the corresponding drill drive, the through-holes of the flange member move around the fixed fasteners.
  • each drill drive can be pivoted independently of the slide.
  • the outer tube drive and the inner tube drive are mounted on at least one common mounting flange. By pivoting this mounting flange outer tube drive and inner tube drive are pivoted together, so that in a simple way an alignment of the common drilling axis can be done to the travel axis of the carriage.
  • a further possibility for joint pivoting of outer tube drive and inner tube drive can be achieved in that the inner tube drive is connected via a substantially rigid connecting element with the outer tube drive, wherein the inner tube drive is pivotable together with the outer tube drive.
  • the connecting element may for example comprise a connecting frame, a connecting plate or a plurality of connecting arms, which are arranged substantially between the outer tube drive and the inner tube drive and in each case firmly connected thereto.
  • the inner tube drive by means of the adjusting device relative to the outer tube drive is pivotable.
  • the longitudinal axes of outer tube drive and inner tube drive can be adjusted on the one hand together to the travel axis of the carriage or to the longitudinal axis of the mast.
  • the inner tube drive can be additionally adjusted to the outer tube drive.
  • first adjusting means are provided, which are connected on the one hand with the carriage and on the other hand with the outer tube drive.
  • second adjusting means are provided, which are connected on the one hand with the outer tube drive and on the other hand with the inner tube drive.
  • First and second adjusting means are preferably each adjusting screws and / or adjusting cylinder.
  • a measuring device is provided for determining the orientations of the outer tube drive and / or the inner tube drive.
  • the drilling or construction equipment with a mast is characterized in that a drive unit according to one of claims 1 to 10 is arranged longitudinally displaceably on the mast. This results in the advantages discussed in connection with the drive unit.
  • the drive unit 10 shown in the figure has a carriage 20, which is provided for arrangement on a mast, not shown, of a drilling or construction equipment.
  • the drive unit 10 further comprises two auger drives, namely an outer tube drive 30 for rotationally driving a first drilling element and an inner tube drive 40 for rotationally driving a second drilling element.
  • the carriage is displaceably mounted along a travel axis 12 on the mast.
  • the guide of the carriage 20 on the mast by means of guide surfaces, which are formed on the carriage 20 and designed to rest against a corresponding mating surface of the mast.
  • the illustrated carriage 20 includes a carriage bottom 22 and a carriage top 24.
  • the carriage bottom part 22 is provided for placement on the mast of the drilling or construction equipment.
  • the corresponding guide surfaces are located on a rear side of the slide lower part 22 and, in the illustrated embodiment, are designed as guide claws 26.
  • the auger drives are arranged on the carriage upper part 24.
  • the outer tube drive 30 is arranged in a lower region of the carriage upper part 24 in the direction of the borehole to be created and serves for the rotational driving of a first, tubular drill string.
  • the inner tube drive 40 is arranged in an upper region of the carriage upper part 24 remote from the borehole and serves for rotationally driving an upwardly projecting second solid drill rod, which may be formed, for example, with a drill spiral.
  • Outer tube drive 30 and inner tube drive 40 are arranged substantially in extension to each other, so that a longitudinal axis of the outer tube drive 30 and a longitudinal axis of the inner tube drive 40 are substantially coaxially aligned with each other and form a common drilling axis 14, but also some deviations may occur.
  • the carriage upper part 24 is pivotable relative to the carriage base 22 for maintenance purposes and / or for fitting with drill rods or other drilling elements.
  • a pivoting cylinder 28 is provided, which is articulated on the one hand to the slide base 22 and on the other hand on the carriage upper part 24.
  • the carriage upper part 24 is pivotable relative to the carriage lower part 22 about a pivot axis 17.
  • the pivot axis 17 extends parallel to the guide surfaces and parallel to a mast front side, on which the carriage 20 is slidably mounted.
  • an adjusting device is provided, which allows a fine adjustment of the longitudinal axes.
  • first set screws 50 are provided which are connected on the one hand to the carriage 20 and on the other hand with the outer tube drive 30 and allow fine adjustment.
  • the adjusting screws 50 with an adjusting flange 52 of the outer tube drive 30, for example via a threaded engaged.
  • the adjusting flange 52 is fixedly connected to the outer tube drive 30.
  • the outer tube drive 30 can be fastened to the carriage 20 via a flange attachment 60 for this purpose.
  • the flange attachment 60 comprises a flange element with through-holes, in which fastening screws 62 are accommodated for fastening the outer tube drive 30 to the carriage 20.
  • the through-holes of the flange member have a diameter which is larger than the outer diameter of the fixing screws 62, so that the fixing screws 62 are accommodated with clearance in the through-holes and allow some pivoting before tightening.
  • the inner tube drive 40 is rigidly connected to the outer tube drive 30 via a connecting element 70, so that the inner tube drive 40 is pivoted together with the outer tube drive 30 when pivoting.
  • the adjusting device For adjusting the inner tube drive 40 relative to the outer tube drive, the adjusting device has second adjusting screws 51, which are connected in the illustrated embodiment on the one hand with the connecting element 70 and on the other hand with the inner tube drive 40.
  • the second set screws 51 for adjusting the inner tube drive 40 as shown above, but also be connected to the carriage 20, so that both auger drives are independently adjustable.
  • Storage and attachment of the inner tube drive 40 can be carried out in basically the same way as the storage and attachment of the outer tube drive 30.
  • the longitudinal axes of an outer tube drive and an inner tube drive can be aligned in a simple and precise manner to the travel axis 12 of the carriage 20 and the desired drilling axis and brought into alignment with each other.
  • forces occurring in the bearings of the auger drives can be reduced, whereby the wear on the corresponding parts is reduced.

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

Claims (10)

  1. Unité d'entraînement pour un engin de forage ou de chantier, avec
    - un chariot (20) qui est conformé pour se déplacer le long d'un axe (12) de déplacement sur un mât de l'engin de forage ou de chantier,
    - un entraînement (30) de tube extérieur pour entraîner en rotation une première tige de forage tubulaire autour d'un premier axe longitudinal, et
    - un entraînement (40) de tube intérieur pour entraîner en rotation une deuxième ligne de forage, qui est placée à l'intérieur de la première ligne de forage, autour d'un deuxième axe longitudinal,
    dans lequel
    - l'entraînement (30) de tube extérieur et l'entraînement (40) de tube intérieur sont placés sur le chariot (20) et
    - les deux axes longitudinaux s'étendent pour essentiel coaxialement l'un à l'autre et forment un axe de forage commun (14),
    caractérisée
    en ce qu'il est prévu un dispositif de réglage avec lequel une orientation d'au moins l'un des axes longitudinaux de l'entraînement (30) de tube extérieur ou de l'entraînement (40) de tube intérieur par rapport à l'axe (12) de déplacement du chariot (20) peut être modifiée et réglée, et
    en ce que l'entraînement (30) de tube extérieur et l'entraînement (40) de tube intérieur sont montés sur au moins une bride de fixation commune.
  2. Unité d'entraînement selon la revendication 1, caractérisée en ce que l'entraînement (30) de tube extérieur et/ou l'entraînement (40) de tube intérieur est(sont) monté(s) sur le chariot (20) de manière pivotante autour d'un axe transversal (16) qui s'étend pour l'essentiel perpendiculairement à l'axe (12) de déplacement du chariot (20).
  3. Unité d'entraînement selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que le dispositif de réglage comprend des moyens de manoeuvre, en particulier des vis de manoeuvre (50, 51) et/ou des vérins de manoeuvre, afin de déplacer l'entraînement (30) de tube extérieur et/ou l'entraînement (40) de tube intérieur par rapport au chariot (20).
  4. Unité d'entraînement selon l'une quelconque des revendications 1 à 3, caractérisée en ce que des moyens de fixation, en particulier des vis de fixation (62) et/ou des boulons de fixation, sont prévus, avec lesquels l'entraînement (30) de tube extérieur et/ou l'entraînement (40) de tube intérieur peu(ven)t être fixé(s) selon une orientation définie sur le chariot (20).
  5. Unité d'entraînement selon l'une quelconque des revendications 1 à 4, caractérisée en ce que, pour fixer l'entraînement (30) de tube extérieur et/ou l'entraînement (40) de tube intérieur sur le chariot (20), il est prévu une fixation (60) à bride qui comprend un élément de bride avec des orifices de passage et des moyens de fixation, en particulier des vis de fixation (62) et/ou des boulons de fixation.
  6. Unité d'entraînement selon la revendication 5, caractérisée en ce que, pour fixer l'entraînement (30) de tube extérieur et/ou l'entraînement (40) de tube intérieur dans différentes positions de pivotement, les moyens de fixation sont placés avec du jeu dans les orifices de passage.
  7. Unité d'entraînement selon l'une quelconque des revendications 1 à 6, caractérisée en ce que l'entraînement (40) de tube intérieur est relié à l'entraînement (30) de tube extérieur par un élément de jonction (70) essentiellement rigide, l'entraînement (40) de tube intérieur pouvant pivoter avec l'entraînement (30) de tube extérieur.
  8. Unité d'entraînement selon l'une quelconque des revendications 1 à 7, caractérisée en ce que l'entraînement (40) de tube intérieur peut pivoter par rapport à l'entraînement (30) de tube extérieur au moyen du dispositif de réglage.
  9. Unité d'entraînement selon l'une quelconque des revendications 1 à 8, caractérisée en ce qu'un dispositif de mesure est prévu pour déterminer les orientations de l'entraînement (30) de tube extérieur et/ou de l'entraînement (40) de tube intérieur.
  10. Engin de forage ou de chantier avec un mât,
    caractérisé en ce qu'une unité d'entraînement (10) selon l'une quelconque des revendications 1 à 9 est placée de manière mobile longitudinalement sur le mât.
EP09004988A 2009-04-03 2009-04-03 Unité d'entraînement avec un dispositif d'alignement Not-in-force EP2236734B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES09004988T ES2367556T3 (es) 2009-04-03 2009-04-03 Unidad de accionamiento con instalación de ajuste.
EP09004988A EP2236734B1 (fr) 2009-04-03 2009-04-03 Unité d'entraînement avec un dispositif d'alignement
AT09004988T ATE520857T1 (de) 2009-04-03 2009-04-03 Antriebseinheit mit justiereinrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09004988A EP2236734B1 (fr) 2009-04-03 2009-04-03 Unité d'entraînement avec un dispositif d'alignement

Publications (2)

Publication Number Publication Date
EP2236734A1 EP2236734A1 (fr) 2010-10-06
EP2236734B1 true EP2236734B1 (fr) 2011-08-17

Family

ID=40983564

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09004988A Not-in-force EP2236734B1 (fr) 2009-04-03 2009-04-03 Unité d'entraînement avec un dispositif d'alignement

Country Status (3)

Country Link
EP (1) EP2236734B1 (fr)
AT (1) ATE520857T1 (fr)
ES (1) ES2367556T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3456914A1 (fr) 2017-09-19 2019-03-20 Eurodrill GmbH Dispositif de forage double tête et procédé de réalisation d'un forage

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11136837B2 (en) 2017-01-18 2021-10-05 Minex Crc Ltd Mobile coiled tubing drilling apparatus

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE414417B (sv) * 1975-12-11 1980-07-28 Craelius Ab Bergborrmaskin
US4878546A (en) * 1988-02-12 1989-11-07 Triten Corporation Self-aligning top drive
DE4402487A1 (de) * 1993-12-29 1995-07-06 Interoc Vertriebsgesellschaft Kompaktbohreinheit für gegenläufiges Überlagerungsbohren auf Kleinbohrgeräten
DE19512109C2 (de) * 1995-04-03 1999-06-24 Delmag Maschinenfabrik Bohrgerät
WO2000055470A1 (fr) * 1999-03-15 2000-09-21 Knebel Drilling A/S Appareil de forage pourvu d'un dispositif de manipulation de tuyaux
DE102006059171B3 (de) 2006-12-14 2008-04-03 Klemm Bohrtechnik Zweigniederlassung Der Bauer Maschinen Gmbh Bohrvorrichtung und Verfahren zum Erstellen einer Bohrung im Erdboden

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3456914A1 (fr) 2017-09-19 2019-03-20 Eurodrill GmbH Dispositif de forage double tête et procédé de réalisation d'un forage
US10837231B2 (en) 2017-09-19 2020-11-17 Eurodrill Gmbh Double head drilling device and method for producing a bore

Also Published As

Publication number Publication date
EP2236734A1 (fr) 2010-10-06
ES2367556T3 (es) 2011-11-04
ATE520857T1 (de) 2011-09-15

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