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EP0427454A2 - Dispositif de nettoyage pour tarière - Google Patents

Dispositif de nettoyage pour tarière Download PDF

Info

Publication number
EP0427454A2
EP0427454A2 EP90311949A EP90311949A EP0427454A2 EP 0427454 A2 EP0427454 A2 EP 0427454A2 EP 90311949 A EP90311949 A EP 90311949A EP 90311949 A EP90311949 A EP 90311949A EP 0427454 A2 EP0427454 A2 EP 0427454A2
Authority
EP
European Patent Office
Prior art keywords
auger
scraper blade
flights
scraper
cleaner
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.)
Granted
Application number
EP90311949A
Other languages
German (de)
English (en)
Other versions
EP0427454B1 (fr
EP0427454A3 (en
Inventor
Brian Flint
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.)
Dawson Construction Plant Ltd
Original Assignee
Dawson Construction Plant Ltd
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 GB898925391A external-priority patent/GB8925391D0/en
Application filed by Dawson Construction Plant Ltd filed Critical Dawson Construction Plant Ltd
Priority to AT90311949T priority Critical patent/ATE92584T1/de
Publication of EP0427454A2 publication Critical patent/EP0427454A2/fr
Publication of EP0427454A3 publication Critical patent/EP0427454A3/en
Application granted granted Critical
Publication of EP0427454B1 publication Critical patent/EP0427454B1/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 present invention relates to an auger cleaner and to a helical blade for use therewith.
  • the scraper described in that specification comprises a plate which may be swung from an inoperative to an operative position. In the operative position the plate extends between adjacent flights of the auger.
  • the scraper is formed upon a body which is rotated about the axis of the auger thereby to force the spoil or debris adhering to the auger flights out of adhesion therewith, thereby to clean the flights on a progressive basis.
  • the scraper blade extends generally perpendicular to the path of the auger flighting, power requirements for removing sticky clay, for example, from the auger flighting by means of the scraper can be high. Furthermore it is a regular occurrence that the flighting becomes deformed over a period of time. Generally the deformations on the auger flighting are such that the auger flighting plates are bent downwardly because of the drilling action in demanding conditions. Further, this deformation need not be regular, but can comprise irregular deformations as a result of the action of particular stones, blocks of concrete, etc.
  • a static auger cleaner also provided with a scraper which can be rotated at will into or out of engagement with the auger flights.
  • the static cleaner rests on two rollers which ride on the cleaned auger flights above the scraper.
  • the cleaner is held in the vertical sense so that rotation of the auger also cleans the auger flight. The cleaner cannot be operated if the auger is stationary.
  • the present invention is characterised in that the scraper blade has a helical configuration which generally conforms to, or has a greater angle of attack than, the angle of the flights of the auger thereby to displace debris and/or spoil by applying thereto a lifting force in the direction of the axis of the auger.
  • the scraper blade is in permanent interengagement with the auger flights and is retained in its desired orientation between the flights of the auger by means of a roller riding on a portion of the auger flights superior to the cutting edge of the scraper blade.
  • the roller may be of a readily replaceable type so that it may be replaced by a roller of a different diameter thereby to adjust the gap between the face of the auger flight and the adjacent cutting edge of the scraper blade. This arrangement allows the auger cleaner to move up and down the length of the auger at will.
  • the scraper blade is preferably retained in an annular body which is a clearance fit about the auger flights, and wherein the annular body is operatively connected to the means for rotating the scraper about the axis of the auger.
  • the annular body may be provided with a debris-discharging aperture adjacent the scraper blade.
  • Means for rotating the scraper is preferably positioned above the said discharge aperture, and is preferably slidingly secured to a parallel rig member.
  • a scraper blade for an auger cleaner said scraper blade being interposable between adjacent flights of an auger, characterised in that the scraper blade has a helical shape extending from its cutting edge, said helical shape having an angle to its intended common axis of rotation about the auger, which angle generally conforms to, or is greater than, the angle of attack of the flight of the auger with which it is intended to be used.
  • a weir is provided at or toward the end of the scraper remote from the cutting edge, said weir acting to urge the debris and/or spoil away from the axis of the auger.
  • the auger B is rotated by means of a drive thereby boring a hole in the soil which can then be filled with concrete, for example.
  • the mast 12 extends parallel to the auger B in standard fashion.
  • the auger cleaner A is supported for free sliding movement on the mast 12 by means of guides 6 which ride upon the mast 12 in the upward or downward direction.
  • the guides 6 are generally elongate and support a support apron 11 which supports in turn a motor 7 which, in this instance, is a hydraulic motor but may be electric or powered by other means.
  • This motor in turn drives a crown wheel interengaged with a pinion extending about the upper periphery of a rotary shell 4 of a generally annular configuration.
  • the internal diameter of the shell 4 is a clearance fit over the auger flighting 3.
  • actuation of the motor 7 rotates a crown wheel (not shown) which interengages a pinion (not shown) shrouded by pinion shroud 8.
  • the pinion is accordingly driven in response to the crown wheel and thereby rotates the rotary shell 4. Since the motor 7 is reversible, the rotary shell 4 may be driven in either direction.
  • a helical scraper 1 Located within the rotary shell 4 is a helical scraper 1 which generally conforms to the configuration of the auger flighting 3.
  • the helical scraper 1, as is shown in Figure 3, extends over most of a single turn of the auger flighting and terminates at its cutting edge in a specially hardened steel portion 13 which provides initial contact between the helical scraper blade 1 and the spoil impacted upon the auger flighting 3.
  • the upper surface of the helical scraper blade 1 passes by a generally rectangular discharge aperture 5 formed in the shell 4.
  • Adjacent the end of the helical scraper blade 1 remote from the cutting tip is a weir 14 which is upstanding from the upper surface of the helical scraper blade adjacent the lateral edge of the discharge aperture 5.
  • the weir 14 acts to urge the debris forced up the inclined plane of the helical scraper 1 out of the discharge aperture 5.
  • the lower rim 10 of the rotary shell 4 is provided with an out-turned section adapted to assist in impelling the spoil and debris away from the auger in use.
  • the internal face of the shell 4 remote from the aperture 5 and opposed thereto is provided with a suitably positioned roller which carries the shell, and hence the scraper blade integrally formed therewith, upon the auger flighting.
  • a suitably positioned roller which carries the shell, and hence the scraper blade integrally formed therewith, upon the auger flighting.
  • the auger cleaner A is controlled by means of the supply of hydraulic fluid to the motor 7 allowing it to be driven in either direction by the operator of the auger rig. Initially, the auger cleaner A is moved toward the top of the auger B and retained there during the drilling operation. Obviously, as the auger is wound down into the ground the auger cleaner A will descend with it, but this may be counteracted at intervals by operating the motor 7 to drive the auger cleaner upwards again. It is in any event occasionally necessary to stop the auger in order to interengage further sections of auger flights.
  • the auger is withdrawn in the usual way. This may be done either by merely withdrawing the auger without rotation, or by gentle rotation in either the clockwise or anti-clockwise direction as seems appropriate to the operator in view of the stratum through which the hole is being bored. However the auger is withdrawn, it may be cleaned either as, or after, it has been withdrawn from the bore. In either condition, power is supplied to the motor 7 to drive the auger cleaner A in a downward direction thereby causing the helical scraper blade 1 to contact the impacted spoil on the auger flights 3 and discharge it either directed downwardly or via the discharge aperture 5.
  • the invention relates to an auger cleaner, and a helical blade for use therewith.

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)
  • Cleaning In General (AREA)
EP19900311949 1989-11-10 1990-11-01 Dispositif de nettoyage pour tarière Expired - Lifetime EP0427454B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90311949T ATE92584T1 (de) 1989-11-10 1990-11-01 Reiniger fuer schneckenbohrer.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8925391 1989-11-10
GB898925391A GB8925391D0 (en) 1989-11-10 1989-11-10 Auger cleaner
GB909001455A GB9001455D0 (en) 1989-11-10 1990-01-22 Auger cleaner
GB9001455 1990-01-22

Publications (3)

Publication Number Publication Date
EP0427454A2 true EP0427454A2 (fr) 1991-05-15
EP0427454A3 EP0427454A3 (en) 1991-10-16
EP0427454B1 EP0427454B1 (fr) 1993-08-04

Family

ID=26296181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900311949 Expired - Lifetime EP0427454B1 (fr) 1989-11-10 1990-11-01 Dispositif de nettoyage pour tarière

Country Status (2)

Country Link
EP (1) EP0427454B1 (fr)
DE (1) DE69002583T2 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318135A (en) * 1996-10-11 1998-04-15 Mini Agriculture & Fisheries Soil auger and mechanical soil sampler
EP1367215A1 (fr) * 2002-05-30 2003-12-03 CASAGRANDE SpA Dispositif de nettoyage pour tariere
NL1033258C2 (nl) * 2007-01-19 2008-07-22 Ecodrie B V Inrichting voor het reinigen van een grondboor.
FR3060048A1 (fr) * 2016-12-12 2018-06-15 Soletanche Freyssinet Machine de forage comprenant une tariere et un dispositif de nettoyage de la tariere
CN108457600A (zh) * 2018-05-10 2018-08-28 江苏地基工程有限公司 新型长螺旋桩机钻头削土器
CN110295852A (zh) * 2019-06-28 2019-10-01 中交天津港湾工程研究院有限公司 一种钻头土体清除装置及其使用方法
WO2020201537A1 (fr) * 2019-04-05 2020-10-08 Burg Marcus Dispositif de nettoyage
CN112252993A (zh) * 2020-11-02 2021-01-22 王元 一种地面钻孔用实现钻土分离的设备
CN115613965A (zh) * 2022-09-22 2023-01-17 乐山师范学院 一种石油钻采用设备及操作方法
FR3127420A1 (fr) * 2021-09-28 2023-03-31 Botte Fondations Dispositif de nettoyage pour un outil de forage

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012006306A1 (de) * 2012-03-21 2013-09-26 Liebherr-Werk Nenzing Gmbh Reinigungsvorrichtung für eine Bohrschnecke
DE102017119377B3 (de) 2017-08-24 2018-08-16 Karl Schnell Gmbh & Co. Kg Reinigungsvorrichtung und Verfahren zur Reinigung einer Förderschnecke

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1522276A (fr) * 1967-02-09 1968-04-26 Sucmanu Dispositif racleur pour transporteurs hélicoïdaux
FR2189284A1 (fr) * 1972-06-15 1974-01-25 Joy Mfg Co
SU705099A1 (ru) * 1977-09-12 1979-12-25 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Нефтяного Машиностроения Устройство дл очистки шнеков
GB2158130A (en) * 1984-05-03 1985-11-06 Soletanche Apparatus for cleaning drills
DE3440002C1 (de) * 1984-11-02 1986-04-10 Telg GmbH, 4717 Nordkirchen Bohrgerät zur Herstellung von Entspannungsbohrungen über Tage
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
FR2609307A1 (fr) * 1987-01-07 1988-07-08 Labrue Jean Marie Dispositif d'entrainement de tariere pour le forage et le betonnage des pieux dans le sol et procede pour leur realisation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1522276A (fr) * 1967-02-09 1968-04-26 Sucmanu Dispositif racleur pour transporteurs hélicoïdaux
FR2189284A1 (fr) * 1972-06-15 1974-01-25 Joy Mfg Co
SU705099A1 (ru) * 1977-09-12 1979-12-25 Всесоюзный Научно-Исследовательский И Проектно-Конструкторский Институт Нефтяного Машиностроения Устройство дл очистки шнеков
GB2158130A (en) * 1984-05-03 1985-11-06 Soletanche Apparatus for cleaning drills
DE3440002C1 (de) * 1984-11-02 1986-04-10 Telg GmbH, 4717 Nordkirchen Bohrgerät zur Herstellung von Entspannungsbohrungen über Tage
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
FR2609307A1 (fr) * 1987-01-07 1988-07-08 Labrue Jean Marie Dispositif d'entrainement de tariere pour le forage et le betonnage des pieux dans le sol et procede pour leur realisation

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318135A (en) * 1996-10-11 1998-04-15 Mini Agriculture & Fisheries Soil auger and mechanical soil sampler
GB2333547B (en) * 1996-10-11 2001-03-28 Mini Agriculture & Fisheries Soil auger and mechanical soil sampler
EP1367215A1 (fr) * 2002-05-30 2003-12-03 CASAGRANDE SpA Dispositif de nettoyage pour tariere
NL1033258C2 (nl) * 2007-01-19 2008-07-22 Ecodrie B V Inrichting voor het reinigen van een grondboor.
FR3060048A1 (fr) * 2016-12-12 2018-06-15 Soletanche Freyssinet Machine de forage comprenant une tariere et un dispositif de nettoyage de la tariere
WO2018109356A1 (fr) * 2016-12-12 2018-06-21 Soletanche Freyssinet Machine de forage comprenant une tariere et un dispositif de nettoyage de la tariere
CN108457600A (zh) * 2018-05-10 2018-08-28 江苏地基工程有限公司 新型长螺旋桩机钻头削土器
WO2020201537A1 (fr) * 2019-04-05 2020-10-08 Burg Marcus Dispositif de nettoyage
CN110295852A (zh) * 2019-06-28 2019-10-01 中交天津港湾工程研究院有限公司 一种钻头土体清除装置及其使用方法
CN112252993A (zh) * 2020-11-02 2021-01-22 王元 一种地面钻孔用实现钻土分离的设备
FR3127420A1 (fr) * 2021-09-28 2023-03-31 Botte Fondations Dispositif de nettoyage pour un outil de forage
CN115613965A (zh) * 2022-09-22 2023-01-17 乐山师范学院 一种石油钻采用设备及操作方法

Also Published As

Publication number Publication date
DE69002583D1 (de) 1993-09-09
DE69002583T2 (de) 1993-11-25
EP0427454B1 (fr) 1993-08-04
EP0427454A3 (en) 1991-10-16

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