EP2927417A3 - Sich öffnende dreh-schlagbohrkrone, insbesondere zum überlagerungsbohren - Google Patents

Sich öffnende dreh-schlagbohrkrone, insbesondere zum überlagerungsbohren Download PDF

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Publication number
EP2927417A3
EP2927417A3 EP15161307.2A EP15161307A EP2927417A3 EP 2927417 A3 EP2927417 A3 EP 2927417A3 EP 15161307 A EP15161307 A EP 15161307A EP 2927417 A3 EP2927417 A3 EP 2927417A3
Authority
EP
European Patent Office
Prior art keywords
folding wing
drill head
drill bit
drill
transversely
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
EP15161307.2A
Other languages
English (en)
French (fr)
Other versions
EP2927417B1 (de
EP2927417A2 (de
Inventor
Günter Fennel
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.)
Sysbohr Bohrtechnik fur Den Spezialtiefbau GmbH
Original Assignee
Sysbohr Bohrtechnik fur Den Spezialtiefbau 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 Sysbohr Bohrtechnik fur Den Spezialtiefbau GmbH filed Critical Sysbohr Bohrtechnik fur Den Spezialtiefbau GmbH
Publication of EP2927417A2 publication Critical patent/EP2927417A2/de
Publication of EP2927417A3 publication Critical patent/EP2927417A3/de
Application granted granted Critical
Publication of EP2927417B1 publication Critical patent/EP2927417B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • E21B10/36—Percussion drill bits
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer
    • 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
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Landscapes

  • 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)

Abstract

Die Erfindung betrifft eine sich öffnende Dreh-Schlagbohrkrone, die nach durchlaufen einer Außenverrohrung bei Grundkontakt zwangsläufig aufklappt und größer bohrt als der Durchmesser der Außenverrohrung misst, wobei die beweglichen Teile der Dreh-Schlagbohrkrone quer zum Kronenschaft drehbar gelagert sind und einen Bohrkopf bilden und die zum Bohren benötigte Energie durch Hydraulikhämmer oder Imlochhämmer zugeführt bekommt und zum Gestängewechsel oder nach vollendeter Arbeit ohne Verdrehen entgegen der Arbeitsdrehrichtung einfach in das Außenrohr zurückgezogen werden kann.
Ferner betrifft die Erfindung eine Bohrkrone (10), insbesondere zum Überlagerungsbohren, mit einem Bohrkopf (30) und einem den Bohrkopf (30) tragenden Bohrkronenträger (20), mit zumindest einem Klappflügel (32, 34), der zwischen einer ersten Position und einer zweiten Position hin und her bewegbar ist, wobei der zumindest eine Klappflügel (32, 34) in der ersten Position innerhalb eines Bohrkronendurchmessers (d10) angeordnet ist und in der zweiten Position über den Bohrkronendurchmesser (d10) hinausragt, und wobei der Klappflügel (32, 34) an seinem freien Ende eine Stirnfläche (40) aufweist. Der wenigstens eine Klappflügel (32, 34) ist quer zu einer Bohrkronenträgerlängsachse (70) schwenkbar am Bohrkronenträger (20) angeordnet und konstruktiv so ausgebildet, dass bei rotierendem Bohrkopf (30) eine Wirkverbindung mit einem Bohrobjekt ein Drehmoment an dem Klappflügel (32, 34) quer zur Bohrkronenträgerlängsachse (70) erzeugt und den Klappflügel (32, 34) von der ersten in die zweite Position treibt.
EP15161307.2A 2014-03-31 2015-03-27 Sich öffnende dreh-schlagbohrkrone, insbesondere zum überlagerungsbohren Active EP2927417B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014104516.5A DE102014104516A1 (de) 2014-03-31 2014-03-31 Bohrkrone, insbesondere zum Überlagerungsbohren, sowie Bohrvorrichtung mit einer Bohrkrone

Publications (3)

Publication Number Publication Date
EP2927417A2 EP2927417A2 (de) 2015-10-07
EP2927417A3 true EP2927417A3 (de) 2016-04-27
EP2927417B1 EP2927417B1 (de) 2018-11-14

Family

ID=52774143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15161307.2A Active EP2927417B1 (de) 2014-03-31 2015-03-27 Sich öffnende dreh-schlagbohrkrone, insbesondere zum überlagerungsbohren

Country Status (2)

Country Link
EP (1) EP2927417B1 (de)
DE (1) DE102014104516A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109654138A (zh) * 2019-01-14 2019-04-19 陶德明 桩孔内中空回转接头的制动装置
DE102020131532A1 (de) 2020-11-27 2022-06-02 Zipp Industries GmbH & Co.KG Bohrvorrichtung
FI130984B1 (fi) * 2022-05-03 2024-07-05 Mincon Nordic Oy Porakruunu ja menetelmä reiän poraamiseksi maahan asennettavaa putkea varten

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494274A (en) * 1921-08-02 1924-05-13 James G Morgan Expansion coal cutter
US2244674A (en) * 1940-03-25 1941-06-10 Fitsum Mining Company Expanding drill
AT354960B (de) * 1978-04-06 1980-02-11 Panzer Ferdinand Bohrkrone fuer die herstellung von bohrungen in erdreich oder gestein

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211048C1 (de) 1992-04-02 1993-05-06 Boart Hwf Gmbh & Co Kg Hartmetallwerkzeugfabrik, 6419 Burghaun, De
DE29513325U1 (de) * 1995-08-19 1995-10-19 Boart Longyear GmbH & Co. KG Hartmetallwerkzeugfabrik, 36151 Burghaun Bohrkrone
GB0009834D0 (en) 2000-04-25 2000-06-07 Brit Bit Limited Expandable bit
DE102010015474B4 (de) * 2010-04-16 2015-12-10 Stds-Jantz Gmbh & Co. Kg Bohrkopf

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1494274A (en) * 1921-08-02 1924-05-13 James G Morgan Expansion coal cutter
US2244674A (en) * 1940-03-25 1941-06-10 Fitsum Mining Company Expanding drill
AT354960B (de) * 1978-04-06 1980-02-11 Panzer Ferdinand Bohrkrone fuer die herstellung von bohrungen in erdreich oder gestein

Also Published As

Publication number Publication date
EP2927417B1 (de) 2018-11-14
EP2927417A2 (de) 2015-10-07
DE102014104516A1 (de) 2015-10-01

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