EP1081329B1 - Outil de nettoyage de tarière - Google Patents

Outil de nettoyage de tarière Download PDF

Info

Publication number
EP1081329B1
EP1081329B1 EP00114457A EP00114457A EP1081329B1 EP 1081329 B1 EP1081329 B1 EP 1081329B1 EP 00114457 A EP00114457 A EP 00114457A EP 00114457 A EP00114457 A EP 00114457A EP 1081329 B1 EP1081329 B1 EP 1081329B1
Authority
EP
European Patent Office
Prior art keywords
auger
cleaning element
cleaning
wiper according
holder
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
EP00114457A
Other languages
German (de)
English (en)
Other versions
EP1081329A1 (fr
Inventor
Werner Dipl.-Ing. Fh Harthauser
Leonhard Dipl.-Ing. Fh Weixler
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
Publication of EP1081329A1 publication Critical patent/EP1081329A1/fr
Application granted granted Critical
Publication of EP1081329B1 publication Critical patent/EP1081329B1/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
    • E21B12/00—Accessories for drilling tools
    • E21B12/06—Mechanical cleaning devices

Definitions

  • the invention relates to a screw cleaner for a auger of a drilling device for earth bores, which is mounted on a mast of the drilling device and has a cleaning member for engaging in a spiral space of the auger.
  • US 3,968,846 describes a screw cleaner for removing drilling material from the spiral space of a screw auger of a drilling device for earth bores.
  • the screw cleaner has a wheel with radially protruding finger-shaped areas which successively engage in the spiral space between the auger and remove drilling material.
  • the wheel is mounted next to the auger and rotates around an axis that is perpendicular to the longitudinal axis of the auger. Rotation and feed movement of the auger causes the wheel to rotate, so that the finger-shaped areas engage one after the other in the spiral space between the auger.
  • the invention has for its object to provide a screw cleaner of the type mentioned, which is simple to use with a simple structure and at the same time offers reliable and improved cleaning.
  • the cleaning member is rotatably mounted on a cleaning member holder of the screw cleaner and is rotated in its cleaning engagement by the driven auger around its bearing axis, and that the cleaning member holder is mounted on a mast guide mounted on the mast is pivotally mounted and can be pivoted in and out of the spiral space by a drive device for pivoting the cleaning member in and out.
  • the cleaning element is thus always rotated by the auger around its axis of rotation into the correct position, in which the largest possible cross-sectional area of the spiral space is covered for cleaning and removing stuck earth material.
  • the driving in and out of the screw cleaner by means of a drive device is a significant simplification of operation in a rough working environment on a construction site.
  • At least one second cleaning member is attached to the cleaning member holder in an arrangement connected in series and adapted to the auger, which further improves the cleaning result.
  • the first cleaning member serves as a pre-cutter for stuck material and the second cleaning member serves as a clearer.
  • each cleaning member is rotatably mounted on its own bearing axis on the cleaning member holder.
  • the second cleaning member on the cleaning member holder can also be arranged offset to the first cleaning member. It is advantageous if at least one of the cleaning members is arranged to be adjustable on the cleaning member holder.
  • a longitudinal adjustment of one of the cleaning members, in particular along the cleaning member holder can be carried out. It is expedient that a longitudinal adjustment can be carried out by moving the bearing axis of one of the cleaning members on the cleaning member holder into one of several transverse bores formed along the holder.
  • the operation of the screw cleaner is considerably easier if the drive device can be operated remotely, in particular from a driver's cab of the drilling rig.
  • the drive device has a hydraulic piston-cylinder drive which connects the cleaning member holder of the screw cleaner and the mast guide to one another.
  • the mast guide is slidably mounted on the mast.
  • the at least one cleaning member has a disk-shaped engagement area which is in sliding contact on its outer circumference with at least one of the two screw blades delimiting the space between the helix. With a corresponding design, this can completely cover the spiral gap and can be guided by the two screw blades delimiting the spiral gap taking into account a play.
  • the disk-shaped cleaning member expediently contains at least two cleaning sheets with a rounded outer circumference, and in particular the disk-shaped cleaning member is formed in a cloverleaf shape with four cleaning sheets.
  • the engagement of the second cleaning member in the auger is optimized when it is at a certain angle is pivoted with respect to the drill axis to the first cleaning member so that the planes of rotation of the two cleaning members intersect on the side of the cleaning member holder facing the auger, in particular in a parallel to the drill axis.
  • the swivel-in path of the auger cleaner can be easily adapted for different augers with different drill core diameters.
  • a drilling tool 1 of a drilling device for producing pile bores and the like in a building ground contains a cylindrical drill core 2 or core tube with a helically rotating auger 3 (see FIG. 1).
  • a screw cleaner 4 is attached and mounted on a mast (not shown) carrying the drilling tool 1 by means of a mast guide 5.
  • the screw cleaner 4 contains a first and a second disk-shaped cleaning member 6 and 7 for engaging in a spiral space 8 between two adjacent screw blades 9 and 10 of the auger 3.
  • the two cleaning members 6 and 7 have four identical cleaning blades 11 and 12, one have rounded outer circumference 13 and 14 and each by one from the outer circumference 13 and 14 forth recess 15 and 16 are separated.
  • the two cleaning members 6 and 7 are rotatably supported on bearing axles 17 and 18 (see FIGS. 2 and 3) of a cleaning member holder 19 by roller bearings.
  • the bearing axis 17 of the first cleaning member 6 is fixedly mounted in the holder 19 in a first bore 20.
  • the cleaning member holder 19 contains z. B. four further bores 21, in which the bearing axis 18 of the second cleaning member 7 optionally used and z. B. can be fixed by means of a screw flange connection 22.
  • the bearing axis 18 of the second cleaning member 7 is angled towards the auger 3 (see FIG.
  • the cleaning member holder 19 is fastened to the mast guide 5 on a bolt 23 so as to be pivotable about a pivot axis 24 (see FIGS. 1 and 3).
  • a hydraulic piston-cylinder unit 25 is connected on the one hand to a joint 26 on the mast guide 5 and on the other hand via a joint 27 to a lateral extension 28 of the holder 19 and can pivot the holder 19 and thus the cleaning members 6 by extending or retracting its piston rod 29 , 7 and move into and out of the spiral space 8.
  • the piston-cylinder unit 25 is actuated e.g. B. by remote control from a cab of the drill.
  • the hydraulic piston-cylinder unit 25 is actuated so that its extending piston rod 29 pivots the holder 19 from a disengaged position (not shown) into the engagement position shown, the cleaning members 6, 7 engaging in the auger 3. Since the cleaning members 6, 7 are freely rotatable, a respective cleaning sheet 11 or 12 of the two cleaning members 6, 7 will always turn into the spiral space 8 between the two adjacent screw blades 9 and 10, which in turn engage in the recesses 15, 16 can and can roll or slide on the side edges 30 of the recesses 15, 16 and on the outer circumference 13 or 14.
  • the individual cleaning blades 11 and 12 of the rotating cleaning members 6, 7 roll with their outer circumferences 13 and 14 and the Side edges 30 of the recesses 15 on the screw blades 11 and 12 and remove the soil material stuck in the auger 3.
  • the first cleaning member 6 serves as a pre-cutter and the second cleaning member 7 as a re-cleaner.
  • the two cleaning elements 6 and 7 ensure that at least one cleaning blade 11 and 12 of the cleaning elements 6 and 7 always fills the predominant cross-sectional portion of the spiral space 8 for removing soil material stuck therein when the auger 3 is rotated, so that cleaning that is as complete as possible is achieved becomes.
  • the screw cleaner 4 is pivoted out of the auger 3 again by the hydraulic piston-cylinder unit 25.
  • an adjustable end stop 31 can be provided for the hydraulic piston-cylinder unit 25 in order to be able to adapt the pivoting path to different diameters of the drill core 2 in the case of differently designed drilling tools 1.
  • the planes of rotation of the cleaning members 6, 7 expediently do not run through the drill axis 32, but they can be offset from the direction of rotation (see FIG. 2), so that the disk-shaped cleaning members 6, 7 are arranged at a shallower angle to the drill core 2 and thus can better scrape the soil material out of the spiral space 8 via its engaging surfaces 33 and 34 and lead it out (the discharge path is shown schematically in FIG. 2 by arrows A and B for the first and second cleaning members 6 and 7, respectively).
  • At least one further cleaning element for example an upstream tearing tool with protruding rods, can be attached to the screw cleaner 4.
  • solidified soil material can be torn open and loosened.
  • the disk-shaped cleaning members 6, 7 can be fastened to a bearing flange 35 of the bearing axes 17 and 18 with screws and can thus be quickly replaced.

Landscapes

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

Claims (14)

  1. Outil (4) de nettoyage de tarière pour une tarière de forage (3) d'un dispositif de forage destiné à des forages dans le sol, qui est monté sur un mât du dispositif de forage et comporte un organe de nettoyage (6) en vue d'une prise de nettoyage dans un interstice (8) d'enroulement de la tarière de forage (3), l'organe de nettoyage (6) étant monté rotatif sur un support (19) d'organe de nettoyage de l'outil (4) de nettoyage de tarière et étant mis en rotation autour de son axe longitudinal (17) dans sa prise de nettoyage par la tarière de forage (3) entraînée, et le support (19) d'organe de nettoyage étant monté pivotant sur un guidage (5) de mât monté sur le mât et pouvant être rentré et sorti par un dispositif d'entraînement (25) afin de faire entrer et sortir par pivotement l'organe de nettoyage (6) dans et hors de l'interstice (8) d'enroulement, caractérise en ce qu'au moins un deuxième organe de nettoyage (7) est placé sur le support (19) d'organe de nettoyage de manière décalée par rapport au premier organe de nettoyage (6).
  2. Outil de nettoyage de tarière selon la revendication 1, caractérisé en ce que le deuxième organe de nettoyage (7) est placé sur le support (19) d'organe de nettoyage selon une disposition l'un derrière l'autre et adaptée à la tarière de forage (3).
  3. Outil de nettoyage de tarière selon la revendication 1 ou 2, caractérisé en ce que chaque organe de nettoyage (6, 7) est monté rotatif sur son propre axe de soutien (respectivement 17, 18) sur le support (19) d'organe de nettoyage.
  4. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu 'au moins l'un des organes de nettoyage (6, 7) est placé mobile sur le support (19) d'organe de nettoyage.
  5. Outil de nettoyage de tarière selon la revendication 4, caractérisé en ce qu' un déplacement longitudinal de l'un des organes de nettoyage (6, 7) s'effectue le long du support (19) d'organe de nettoyage.
  6. Outil de nettoyage de tarière selon la revendication 4 ou 5, caractérisé en ce qu'un déplacement longitudinal s'effectue par déplacement de l'axe (17, 18) de soutien de l'un des organes de nettoyage (6, 7) sur le support (19) d'organe de nettoyage dans l'un de plusieurs perçages transversaux (21) ménagés le long du support (19).
  7. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le dispositif d'entraînement (25) peut en particulier être commandé à distance depuis un poste de conduite du dispositif de forage.
  8. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 7, caractérisé en ce que le dispositif d'entraînement présente un entraînement hydraulique (25) à piston et cylindre, qui relie entre eux le support (19) d'organe de nettoyage de l'outil (4) de nettoyage de tarière et le guidage (5) de mât.
  9. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 8, ca ractérisé en ce que l'organe de nettoyage (6, 7) présente une zone de prise (respectivement 11, 12) de type plaque, qui est en contact glissant, au niveau de sa circonférence extérieure (respectivement 13, 14) avec au moins l'une des deux lames (9 et 10) de tarière délimitant l'interstice (8) d'enroulement.
  10. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 9, caractérisé en ce que l'organe de nettoyage (6, 7) en forme de plaque présente au moins deux lames de nettoyage (respectivement 11, 12) avec une circonférence extérieure (respectivement 13, 14) arrondie.
  11. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'organe de nettoyage (6, 7) en forme de plaque est réalisé en forme de trèfle avec quatre lames de nettoyage (respectivement 11, 12).
  12. Outil de nettoyage de tarière selon la revendication 8, caractérisé en ce que le deuxième organe de nettoyage (7) est placé basculé d'un angle déterminé vis-à-vis de l'axe de forage (32) par rapport au premier organe de nettoyage (6), de telle sorte que les plans de rotation des deux organes de nettoyage (6, 7) se coupent du côté du support (19) d'organe de nettoyage orienté vers la tarière de forage (3), en particulier suivant une parallèle à l'axe de forage (32).
  13. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu 'une butée de fin réglable (31) limite la course de déplacement du piston hydraulique (29) en direction de la tarière de forage (3).
  14. Outil de nettoyage de tarière selon l'une quelconque des revendications 1 à 13, caractérisé en ce que, comme autre organe de nettoyage, il est prévu un outil d'arrachement avec au moins une barre en saillie.
EP00114457A 1999-08-31 2000-07-05 Outil de nettoyage de tarière Expired - Lifetime EP1081329B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19941409 1999-08-31
DE19941409A DE19941409C1 (de) 1999-08-31 1999-08-31 Schneckenputzer

Publications (2)

Publication Number Publication Date
EP1081329A1 EP1081329A1 (fr) 2001-03-07
EP1081329B1 true EP1081329B1 (fr) 2004-12-29

Family

ID=7920260

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114457A Expired - Lifetime EP1081329B1 (fr) 1999-08-31 2000-07-05 Outil de nettoyage de tarière

Country Status (2)

Country Link
EP (1) EP1081329B1 (fr)
DE (2) DE19941409C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448150A (zh) * 2017-08-02 2017-12-08 张家港市兴鸿达基础有限公司 一种螺旋打桩机用可升降清土装置
WO2022028955A1 (fr) 2020-08-05 2022-02-10 Bauer Maschinen Gmbh Dispositif permettant de nettoyer un espace en spirale d'une vis sans fin et procédé permettant de produire un trou foré

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0019804D0 (en) * 2000-08-12 2000-09-27 Elle Holdings Limited Van Auger cleaning device
FR2960573A1 (fr) * 2010-05-26 2011-12-02 Robert Cavo Dispositif destine a creer des bassins enterres en vue du stockage de l'eau dans le sol et plus particulierement ceux realises au droit d'un forage, selon un outillage et une demarche specifiques
DE202018101237U1 (de) * 2018-03-06 2019-06-07 Liebherr-Werk Nenzing Gmbh Vorrichtung zum Reinigen einer Bohrschnecke
DE102018133068B4 (de) * 2018-12-20 2020-10-22 gemeinnützige KIMW Forschungs-GmbH Dosiervorrichtung zum Dosieren eines pulverförmigen Stoffes
DE102019109012A1 (de) * 2019-04-05 2020-10-08 Marcus Burg Reinigungsvorrichtung
CN113020049A (zh) * 2021-03-26 2021-06-25 中曼石油钻井技术有限公司 一种钻杆丝扣清洁设备
CN116146115B (zh) * 2023-03-23 2023-11-24 中国建筑第四工程局有限公司 一种钻孔机刮土装置

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US3540572A (en) * 1967-12-07 1970-11-17 Raymond Int Inc Cleaning helical flights
US3968846A (en) * 1975-05-09 1976-07-13 M.G.B., Inc. Auger wiper
DE3446902A1 (de) * 1984-12-21 1986-07-03 Karl Bauer Spezialtiefbau GmbH & Co KG, 8898 Schrobenhausen Vorrichtung zum austragen von bohrgut aus der bohrschnecke eines schneckenbohrgeraetes fuer erdbohrungen
DE3839003C2 (de) * 1988-11-18 1996-07-11 Paul Dr Behringer Vorrichtung zur Entnahme von Bodenproben mit einer Bohrschnecke
GB2235480A (en) * 1989-08-15 1991-03-06 English Drilling Equipment Co Improvements in or relating to the clearing of drills
IT1236315B (it) * 1989-11-21 1993-02-09 Dispositivo di raschiatura per trivelle ad elica continua
US5242027A (en) * 1992-03-09 1993-09-07 Berkel & Company Contractors, Inc. Cleaning device for earth augers
GB2265922A (en) * 1992-04-01 1993-10-13 Starlite Investment Ltd Cleaning augers and screw-conveyors
IT1279562B1 (it) * 1995-05-25 1997-12-16 Soilmec Spa Dispositivo per rimuovere i detriti da un utensile di perforazione ad elica.
GB2332689B (en) * 1997-12-24 2002-01-16 Kvaerner Cementation Found Ltd Improved auger cleaners

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107448150A (zh) * 2017-08-02 2017-12-08 张家港市兴鸿达基础有限公司 一种螺旋打桩机用可升降清土装置
WO2022028955A1 (fr) 2020-08-05 2022-02-10 Bauer Maschinen Gmbh Dispositif permettant de nettoyer un espace en spirale d'une vis sans fin et procédé permettant de produire un trou foré
US11952838B2 (en) 2020-08-05 2024-04-09 Bauer Maschinen Gmbh Device for clearing a helix gap of an auger, and method for making a drilled hole

Also Published As

Publication number Publication date
EP1081329A1 (fr) 2001-03-07
DE50009086D1 (de) 2005-02-03
DE19941409C1 (de) 2001-02-15

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