EP1525370B1 - Dispositif pour realiser des forages dans la terre - Google Patents

Dispositif pour realiser des forages dans la terre Download PDF

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Publication number
EP1525370B1
EP1525370B1 EP03766209A EP03766209A EP1525370B1 EP 1525370 B1 EP1525370 B1 EP 1525370B1 EP 03766209 A EP03766209 A EP 03766209A EP 03766209 A EP03766209 A EP 03766209A EP 1525370 B1 EP1525370 B1 EP 1525370B1
Authority
EP
European Patent Office
Prior art keywords
drill head
main shaft
circumferential region
drill
receiving end
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
Application number
EP03766209A
Other languages
German (de)
English (en)
Other versions
EP1525370A2 (fr
Inventor
Michael Mohrmann
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.)
Mhwirth GmbH
Original Assignee
Wirth Maschinen und Bohrgeraete Fabrik 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
Priority claimed from DE2002134336 external-priority patent/DE10234336A1/de
Priority claimed from DE2002134337 external-priority patent/DE10234337B4/de
Priority claimed from DE2002134338 external-priority patent/DE10234338B4/de
Priority claimed from DE2002137889 external-priority patent/DE10237889C1/de
Application filed by Wirth Maschinen und Bohrgeraete Fabrik GmbH filed Critical Wirth Maschinen und Bohrgeraete Fabrik GmbH
Publication of EP1525370A2 publication Critical patent/EP1525370A2/fr
Application granted granted Critical
Publication of EP1525370B1 publication Critical patent/EP1525370B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/083—Roller bits with longitudinal axis, e.g. wobbling or nutating roller bit
    • 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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/086—Roller bits with excentric movement
    • 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
    • E21B4/006—Mechanical motion converting means, e.g. reduction gearings
    • 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
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
    • E21D9/112—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of one single rotary head or of concentric rotary heads
    • E21D9/113—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines by means of one single rotary head or of concentric rotary heads having a central part for making a pilot tunnel and a follow-up part for enlarging the pilot tunnel

Definitions

  • the invention relates to a device for propelling holes in the ground, as is known from DE 43 32 113 A1.
  • a rotationally driven shaft is rotatably mounted within a machine housing, on which the working face or the bore sole facing the end of a drill head is arranged.
  • the drill head is formed differently. Difficulties therefore often occur when changing over the drilling length, the nature of the degraded soil.
  • rock drill heads which are generally filled with rollers, chisels or disks, stick in soft, for example loamy soils;
  • drill heads that show good drilling performance in loamy or mobile soils quickly fail due to high wear when encountering rocks or large rocks.
  • a further disadvantage is that the drilling operation subject to a significant wear boring head by the external bevel gear is expensive to manufacture, thereby increasing the operating costs of this device.
  • the invention is therefore the object of developing a known from DE 43 32 113 A1 device such that it is suitable for a wider range of different soils.
  • the rotary drive of the drill head is further characterized in that it has a peripheral region which runs during the rotation of the main shaft at a mating peripheral region.
  • the rotation of the drill head caused by the run-off is now influenced according to the invention in terms of its rotational speed by virtue of the fact that the counter-peripheral region itself can be displaced in rotation. Depending on the direction of rotation of the circumferential area, an increase or reduction of the resulting rotational speed of the drill head is thus effected at a constant rotational speed of the main shaft.
  • peripheral area and the peripheral area running on it can be turned off in any way that ensures drainage during operation. Because of the ease of manufacture and reliability, however, it is preferred if the peripheral region comprises an outer toothing and the mating peripheral region comprises an internal toothing.
  • the mating peripheral region is preferably formed by a ring gear arranged concentrically to the main shaft axis, which can be set into rotation in accordance with the invention.
  • a preferred embodiment of the device according to the invention therefore provides that the mating peripheral region can be set in rotation by means of a planetary gear meshing with the main shaft.
  • This embodiment has the advantage that it requires no further complicated drive motors compared with the generic device. Furthermore, this embodiment is characterized by a particularly high reliability.
  • the mating peripheral area by means of a separate drive independent of the main shaft, i. No coupling of the circumference area and main shaft.
  • the separate drive is then configured controllable or controllable, whereby an adjustment of the ratio between Bohrkopffitiere and Taumelfrequenz to the type of each pending soil is possible during operation.
  • the feed and the rotary drive of the main shaft by means of a hydraulic medium means that control the hydraulic pressures for effecting the feed and the rotary drive of the main shaft relative to each other or regulate. For example, if the pressure on the engine for the rotary drive is not high enough, the hydraulic pressure to effect the feed is reduced until the working pressure on the drive motor to effect the rotary drive is sufficient. If the pressure at the drive motor is too high, the hydraulic pressure to effect the feed is reduced until the desired pressure at the rotary motor also sets. As a result, optimal utilization of the device is ensured by this configuration by the largest possible drilling progress is achieved; without this need to be readjusted manually permanently.
  • the drill head is designed in several parts, such that the by the friction of the soil to be dissolved a high-subject subject tool part of the bearing part is solvable.
  • the drill head wherein the tool part is fastened by screws to the bearing part. These are preferably arranged evenly distributed uniformly over a pitch circle of the bearing part.
  • a sealing arrangement which seals the bearing assembly for the drill head at least substantially, prevents wear-increasing overburden reaches up to the area in which the peripheral region runs off at the mating peripheral area.
  • the sealing arrangement comprises an elastic bellows. This serves to compensate for the radial relative movement between the bearing part of the drill head and a non-tumbling, but revolving with disc speed flange.
  • the latter is preferably sealed by a mechanical seal with respect to the housing of the device.
  • the drill head and the receiving end of the conveyor line are designed such that by the tumbling motion of the drill head such cuttings that is located in front of the receiving end, is mechanically transported to the conveyor line, the removal of the cuttings is much more effective than in the prior art ,
  • the drill head has on its side facing away from the face at least one projection which penetrates by the wobbling at least almost into the receiving end of the delivery line, the cuttings are particularly effectively introduced into the delivery line and by the recurrent mechanical pressure in the conveyor unit transported further.
  • means for reducing at least large drill bits are preferably provided in the region adjoining the receiving end of the delivery line.
  • These means may consist of actively working, i. even driven stone breakers exist.
  • the means for comminution include very difficult in the cross section of the conveying line extending crushing ribs.
  • the effectiveness of the delivery line i. the Abtragsrate achieved with this is again increased when the receiving end is formed in partial cross-section in cross section. It is then possible to arrange the receiving end in the bore along the inner circumference of the bore and symmetrically to its lowest point, so that no "height differences have to be overcome for the" loading "of the receiving end.
  • the application rate can be increased again if the device additionally comprises means for injecting conveying air into the drill head space, as is known for the pneumatic removal of the prior art.
  • the apparatus designated as a whole by 100 comprises a drill head 1 which has a tool part 30 designed as a scraping disk 2 and a bearing part 3.
  • the scraper 2 and the bearing part 3 are fastened together with a plurality of cylinder screws 4, only one of which is shown in the drawing.
  • the cylinder screws 4 are evenly distributed on a pitch circle with the radius R arranged. Due to the division of the drill head 1 of the subjected to wear tool part 30 can be dismantled after reaching the wear limit by loosening the screws 4 on the site and replaced by a new or restored tool part.
  • the scrub location 2 is provided with a central cutting edge 5 whose tip 6 lies on the axis of rotation A of the drill head.
  • the scraper 2 has in the illustrated embodiment, three radially outwardly extending arms 7, 7 ', 7 ", of which the arm 7 shown in the drawing above is occupied by a plurality of chisels 8.
  • the drill head 1 is mounted on the bearing part 3 by means of a bearing assembly 40, the tapered roller bearings 9, 10, rotatably mounted on a shaft journal 11 of a main shaft 12.
  • the one substantially cylindrical outer peripheral surface having shaft journals 11 is formed on the main shaft 12 so that its axis B with the axis of rotation A forms an acute angle w of about 5 °.
  • the main shaft 12 is in turn rotatably supported by tapered roller bearings 13, 14 in a machine housing 15 about the axis of rotation A and is rotationally driven by a frontally flanged hydraulic motor 16.
  • the part of the bearing part 3 applied to the scraper 2 is known as concentric with the axis B of the shaft journal 11 arranged gear, hereinafter referred to as the wobble edge 17, and thus formed as a peripheral portion 18 which expires upon rotation of the main shaft 12 in an acting as a counter-peripheral region 19 internal teeth 20.
  • the internal toothing 20 is formed on a ring gear 21, which is arranged concentrically with respect to the main shaft axis and rotatably mounted relative thereto.
  • the ring gear has a further internal toothing 22 which is part of a planetary gear designated as a whole by 28.
  • the teeth of the smaller diameter parts 24 of planetary gears 23 engage.
  • the larger diameter parts 25 of the planet gears 23 engage with their teeth in a provided on the main shaft 12 external teeth 26 and provided in the machine housing 15 internal teeth 27, so that the planetary gears 12 during rotation of the main shaft in the same sense of rotation encircle the axis of rotation A.
  • the ring gear 21 is offset in opposite directions rotation to the drill head 11, the rotation of which is effected by running of the wobble wheel 17 on the internal teeth 20. It is understood that by selecting the ratios in the planetary gear 28, the rotational speed of the ring gear 21 relative to the main shaft 12 and thus in the result the ratio of wobble frequency to rotational frequency of the drill head can be specified.
  • a sealing arrangement 50 is provided. It comprises an elastic bellows 51, which is approximately V-shaped in cross section. It is mounted so that its concave side is directed against the drill head O.
  • the annular, free ends of the bellows 51 each have outwardly directed thickenings 52, 53, wherein the one thickening 52 in a complementary formed annular groove 54 of the bearing part 3, the other thickening 53 in an annular groove 55 with respect to the machine housing 15 by means of a ball bearing 56 rotatably mounted ring 57 rests.
  • the bellows 51 therefore absorbs the vertical movement component of the drill head 1 caused by the tumbling motion relative to the machine housing 15.
  • a mechanical seal 58 is arranged, which prevents ingress of contaminants in the ball bearing 56.
  • the apparatus designated as a whole by 200 in FIG. 2 in turn comprises a drill head 1 which has a scraper disk 2 and a bearing part 3.
  • the scraper 2 and the bearing part 3 are fastened together with a plurality of cylinder screws 4, of which only two are shown in the drawing.
  • the scraper 2 is provided with a central cutting edge 5, the tip 6 of which lies on the axis of rotation A of the drill head.
  • the scraping disk 2 has three radially outwardly extending arms 7, 7 ', 7 ".
  • the drill head 1 is rotatably mounted on the bearing part 3 by means of bearings, not shown in the drawing, on a shaft journal of a main shaft.
  • the one substantially cylindrical outer peripheral surface having shaft journals is formed on the main shaft, that its axis B encloses an acute angle w with the axis of rotation A.
  • the main shaft is in turn rotatably mounted in a machine housing 8 about the rotation axis A and is rotatably driven by a hydraulic motor.
  • the removal of loosened drilled material is a conveying channel 10, the rear portion 11 is circular inner cross-section flattened towards the Bohrkopfraum O finally to end in a receiving end 12 of a partially annular cross-section in the Bohrkopfraum O (see, in particular Fig. 2 and 3).
  • crushing ribs 13 are provided which extend approximately radially, as can be seen in Fig. 2.
  • the crushing ribs 13 are each arranged in pairs, such that a larger distance follows a small distance between two adjacent crushing ribs 13.
  • the division of the ribs 13 is selected such that the cuttings to be removed are comminuted so that it can be removed by the conveyor channel 10 without problems.
  • the tumbling frequency of the scraper is synchronized with the rotational speed of the same so that a mechanical insertion of cuttings in the receiving end 12 of the conveyor line 10 when passing one of the arms 7, 7 ', 7 "is effected.
  • the device according to the invention comprises an inlet for injecting conveying air into the drill head space O, which is not recognizable in the drawing.
  • an air flow is generated in the delivery line 10, which is symbolized by the arrows P.

Landscapes

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

Claims (22)

  1. Dispositif pour réaliser des forages dans la terre, comportant un arbre principal entraîné en rotation (12) avec un tourillon d'arbre (11) dont l'axe (B) forme, par rapport à l'axe (A) de l'arbre principal (12), un angle aigu (w), et une tête de forage (1) rotative autour de l'axe (B) du tourillon d'arbre (11) et présentant une zone périphérique (18) se prolongeant le long d'une zone périphérique complémentaire (19),
    caractérisé en ce que
    la zone périphérique complémentaire (19) est décalable en rotation.
  2. Dispositif selon la revendication 1,
    caractérisé en ce que
    la zone périphérique (18) présente une denture extérieure et la zone périphérique complémentaire (19) présente une denture intérieure.
  3. Dispositif selon la revendication 1 ou 2,
    caractérisé en ce que
    la zone périphérique complémentaire (19) est formée par une roue creuse (21) concentrique à l'axe (A) de l'arbre principal (12).
  4. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    la zone périphérique complémentaire (19) est décalable en rotation au moyen d'un engrenage planétaire (28) engrené avec l'arbre principal (12).
  5. Dispositif selon l'une quelconque des revendications 1 à 3,
    caractérisé en ce que
    la zone périphérique complémentaire (19) est décalable en rotation indépendamment de l'arbre principal (12) grâce à un entraînement séparé.
  6. Dispositif selon la revendication 5,
    caractérisé en ce que
    l'entraînement séparé peut être commandé ou réglé.
  7. Dispositif selon l'une quelconque des revendications 1 à 6,
    caractérisé en ce que
    des moyens permettent de commander ou régler l'avance en fonction de la puissance de l'entraînement en rotation de l'arbre principal.
  8. Dispositif selon la revendication 7,
    caractérisé en ce que
    l'entraînement séparé peut être commandé ou réglé.
  9. Dispositif selon l'une quelconque des revendications 1 à 8,
    caractérisé en ce que
    des moyens permettent de commander ou régler l'avance en fonction de la puissance de l'entraînement en rotation de l'arbre principal.
  10. Dispositif selon la revendication 9, dans lequel l'avance et l'entraînement en rotation de l'arbre principal s'effectuent grâce à un fluide hydraulique,
    caractérisé en ce que
    des moyens permettent de commander ou de régler la pression hydraulique destinée à créer l'avance et l'entraînement en rotation de l'arbre principal.
  11. Dispositif selon l'une quelconque des revendications 1 à 10,
    caractérisé en ce que
    la tête de forage (1) est constituée de plusieurs composants permettant à la partie de tête de forage soumise à l'usure d'être séparable de la partie de tête de forage assurant le montage de la tête de forage sur le tourillon d'arbre (11).
  12. Dispositif selon la revendication 11,
    caractérisé en ce que
    la tête de forage (1) comprend un élément de palier central (3) et un élément d'outil (30) fixé à celui-ci de manière amovible.
  13. Dispositif selon la revendication 13,
    caractérisé en ce que
    l'élément d'outil (30) est fixé sur l'élément de palier (3) au moyen de vis réparties régulièrement sur un cercle primitif.
  14. Dispositif selon l'une quelconque des revendications 1 à 13,
    caractérisé en ce qu'
    un dispositif d'étanchéité (50) assure au moins pour l'essentiel l'étanchéité du dispositif de palier (40) vis-à-vis de la chambre de tête de forage (O).
  15. Dispositif selon la revendication 14,
    caractérisé en ce que
    le dispositif d'étanchéité (50) comprend un soufflet élastique (51).
  16. Dispositif selon la revendication 14 ou 15,
    caractérisé en ce que
    le dispositif d'étanchéité comprend un joint d'étanchéité rotatif.
  17. Dispositif selon l'une quelconque des revendications 1 à 16,
    caractérisé en ce que
    la tête de forage et l'extrémité de réception (12) de la conduite de transport (10) sont conçues de telle sorte que le mouvement basculant de la tête de forage (1) entraîne le transport mécanique dans la conduite de transport (10) du déblais faisant face à l'extrémité de réception (12).
  18. Dispositif selon la revendication 17,
    caractérisé en ce que
    la tête de forage (1) présente sur son côté tourné vers le front de taille, au moins un prolongement (9, 9', 9") qui du fait du mouvement basculant, pénètre au moins quasiment dans l'extrémité de réception (12) de la conduite de transport (10).
  19. Dispositif selon la revendication 17 ou 18,
    caractérisé en ce que
    dans la zone faisant suite à l'extrémité de réception (12) de la conduite de transport (10), des moyens permettent de broyer au moins les gros morceaux de déblais.
  20. Dispositif selon la revendication 19,
    caractérisé en ce que
    les moyens de broyage comprennent des nervures de concassage (13) se prolongeant transversalement à la section transversale de la conduite de transport (10).
  21. Dispositif selon l'une quelconque des revendications 17 à 20,
    caractérisé en ce que
    l'extrémité de réception (12) a une section transversale partiellement circulaire.
  22. Dispositif selon l'une quelconque des revendications 17 à 21,
    caractérisé en ce que
    des moyens permettent d'insuffler de l'air de transport dans la chambre de tête de forage (O).
EP03766209A 2002-07-26 2003-07-18 Dispositif pour realiser des forages dans la terre Expired - Lifetime EP1525370B1 (fr)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
DE2002134336 DE10234336A1 (de) 2002-07-26 2002-07-26 Vorrichtung zum Vortreiben von Bohrungen im Erdreich
DE2002134337 DE10234337B4 (de) 2002-07-26 2002-07-26 Vorrichtung zum Vortreiben von Bohrungen im Erdreich
DE2002134338 DE10234338B4 (de) 2002-07-26 2002-07-26 Vorrichtung zum Vortreiben von Bohrungen im Erdreich
DE10234337 2002-07-26
DE10234336 2002-07-26
DE10234338 2002-07-26
DE2002137889 DE10237889C1 (de) 2002-08-19 2002-08-19 Vorrichtung zum Abtransport von Bohrgut aus dem Bohrkopfraum einer Vorrichtung zum Vortreiben von Bohrungen im Erdreich
DE10237889 2002-08-19
PCT/EP2003/007810 WO2004013449A2 (fr) 2002-07-26 2003-07-18 Dispositif pour realiser des forages dans la terre

Publications (2)

Publication Number Publication Date
EP1525370A2 EP1525370A2 (fr) 2005-04-27
EP1525370B1 true EP1525370B1 (fr) 2006-09-13

Family

ID=31499404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03766209A Expired - Lifetime EP1525370B1 (fr) 2002-07-26 2003-07-18 Dispositif pour realiser des forages dans la terre

Country Status (8)

Country Link
US (1) US7658244B2 (fr)
EP (1) EP1525370B1 (fr)
JP (1) JP4112554B2 (fr)
AT (1) ATE339587T1 (fr)
AU (1) AU2003257476A1 (fr)
DE (1) DE50305056D1 (fr)
HK (1) HK1082015A1 (fr)
WO (1) WO2004013449A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287203B (zh) * 2011-08-01 2013-04-10 成都市新筑路桥机械股份有限公司 一种风钻工作装置
CN103437776A (zh) * 2013-09-12 2013-12-11 甘忠荣 一种隧道掘进机的机头和装有该机头的隧道掘进机
US11261667B2 (en) 2015-03-24 2022-03-01 Baker Hughes, A Ge Company, Llc Self-adjusting directional drilling apparatus and methods for drilling directional wells
CN104948105A (zh) * 2015-06-29 2015-09-30 江苏谷登工程机械装备有限公司 一种双通道动力头结构
US11193331B2 (en) 2019-06-12 2021-12-07 Baker Hughes Oilfield Operations Llc Self initiating bend motor for coil tubing drilling

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DE4332113A1 (de) * 1993-09-22 1995-03-23 Nlw Foerdertechnik Gmbh Bohrgerät für Bohrungen im Erdreich mit unterschiedlichen Bodenklassen
JPH07324591A (ja) 1994-05-31 1995-12-12 Fujita Corp 地質変化に対応したシールド工事の施工方法
FR2721346B1 (fr) * 1994-06-15 1996-08-30 Andre Leroy Outil articulé pour le forage de puits pétroliers, gaziers ou géothermiques.
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Also Published As

Publication number Publication date
WO2004013449A3 (fr) 2004-04-22
DE50305056D1 (de) 2006-10-26
JP4112554B2 (ja) 2008-07-02
WO2004013449A2 (fr) 2004-02-12
US20060096784A1 (en) 2006-05-11
JP2005533949A (ja) 2005-11-10
HK1082015A1 (en) 2006-05-26
ATE339587T1 (de) 2006-10-15
US7658244B2 (en) 2010-02-09
EP1525370A2 (fr) 2005-04-27
AU2003257476A1 (en) 2004-02-23

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