EP0004674A3 - Drill bit for making bore holes in earth and rock - Google Patents

Drill bit for making bore holes in earth and rock Download PDF

Info

Publication number
EP0004674A3
EP0004674A3 EP79101061A EP79101061A EP0004674A3 EP 0004674 A3 EP0004674 A3 EP 0004674A3 EP 79101061 A EP79101061 A EP 79101061A EP 79101061 A EP79101061 A EP 79101061A EP 0004674 A3 EP0004674 A3 EP 0004674A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
jaws
rock
earth
bore holes
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.)
Withdrawn
Application number
EP79101061A
Other languages
German (de)
French (fr)
Other versions
EP0004674A2 (en
Inventor
Josef Sulzer
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.)
Ferdinand Panzer GmbH
Original Assignee
Ferdinand Panzer 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 Ferdinand Panzer GmbH filed Critical Ferdinand Panzer GmbH
Publication of EP0004674A2 publication Critical patent/EP0004674A2/en
Publication of EP0004674A3 publication Critical patent/EP0004674A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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

Abstract

Die Bohrkrone (4) für schlagendes und/oder drehendes Bohren weist an einem Grundkörper (5) angelenkte schwenkbare Backen (6, 7) mit Arbeitsflächen (9, 10) auf. Die schwenkbaren Backen (6, 7) sind so gelagert, daß der Schwerpunkt der Stirnflächen (11, 12) der Backen (6, 7) in der eingeschwenkten Ausgangsstellung in Achsrichtung der Bohrkrone (4) gesehen zwischen der Anlenkstelle der jeweiligen Backe (6, 7) und dem äußeren Rand derselben liegt, so daß die Backen (6, 7) durch den Gegendruck im Erdreich oder Gestein in ihre Arbeitsstellung verschwenkt werden, in welcher sie über den Umfang des Grundkörpers (5) bzw. die Umhüllende der eingeschwenkten Ausgangsstellung der Backen (6, 7) vorragen. The drill bit (4) for striking and / or rotating Drilling has pivotable hinged to a base body (5) Bake (6, 7) with work surfaces (9, 10). The pivotable jaws (6, 7) are mounted so that the Center of gravity of the end faces (11, 12) of the jaws (6, 7) in the swiveled-in initial position in the axial direction of the Drill bit (4) seen between the articulation point of the respective Cheek (6, 7) and the outer edge of the same, so that the jaws (6, 7) by the back pressure in the ground or Rock swung into their working position, in which they over the circumference of the base body (5) or the Envelope of the swung-in starting position of the Project the jaws (6, 7).

EP79101061A 1978-04-06 1979-04-06 Drill bit for making bore holes in earth and rock Withdrawn EP0004674A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2435/78 1978-04-06
AT243578A AT354960B (en) 1978-04-06 1978-04-06 DRILL BIT FOR THE PRODUCTION OF DRILLS IN GROUND OR STONE

Publications (2)

Publication Number Publication Date
EP0004674A2 EP0004674A2 (en) 1979-10-17
EP0004674A3 true EP0004674A3 (en) 1979-10-31

Family

ID=3534299

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79101061A Withdrawn EP0004674A3 (en) 1978-04-06 1979-04-06 Drill bit for making bore holes in earth and rock

Country Status (2)

Country Link
EP (1) EP0004674A3 (en)
AT (1) AT354960B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358786A1 (en) * 1988-09-13 1990-03-21 Ing. G. Klemm Bohrtechnik GmbH Superimposing drilling device
DE102014104516A1 (en) * 2014-03-31 2015-10-01 Sysbohr Gmbh - Bohrtechnik Für Den Spezialtiefbau Drill bit, in particular for overburden drilling, and drilling device with a drill bit

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39674C (en) * A. FAUCK und E. HASENÖRL in Wien Free fall drill for deep drilling
DE3971C (en) * H. GÖTZE, Schlossermeister, in Neumünster in Holstein Earth auger
FR505941A (en) * 1918-11-12 1920-08-10 Chas L Stickney Improvements to drilling rigs
US1428774A (en) * 1921-09-19 1922-09-12 William R Gardner Fishtail bit
GB297285A (en) * 1928-03-02 1928-09-20 Colon Dev Co Improvements in well-boring apparatus
US1733452A (en) * 1926-12-13 1929-10-29 John W Doody Underreamer
GB540027A (en) * 1940-04-26 1941-10-02 Percy Cox Improvements in and relating to rock boring and like tools
US2397652A (en) * 1944-02-03 1946-04-02 Jr Woyman B Dunlap Underreamer
DE830033C (en) * 1950-01-15 1952-01-31 Guenther Fluegge Dr Ing Drill bits
US2599167A (en) * 1946-02-23 1952-06-03 Dionisotti Joseph Scraping out device for mining boreholes
FR2171290A1 (en) * 1972-02-10 1973-09-21 Atlas Copco Ab
FR2274780A1 (en) * 1974-06-12 1976-01-09 Ugine Aciers BUTTON SIZES FOR ROCK PERFORATION USING A HAMMER BOTTOM OF SIDE BLOWING HOLE

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE39674C (en) * A. FAUCK und E. HASENÖRL in Wien Free fall drill for deep drilling
DE3971C (en) * H. GÖTZE, Schlossermeister, in Neumünster in Holstein Earth auger
FR505941A (en) * 1918-11-12 1920-08-10 Chas L Stickney Improvements to drilling rigs
US1428774A (en) * 1921-09-19 1922-09-12 William R Gardner Fishtail bit
US1733452A (en) * 1926-12-13 1929-10-29 John W Doody Underreamer
GB297285A (en) * 1928-03-02 1928-09-20 Colon Dev Co Improvements in well-boring apparatus
GB540027A (en) * 1940-04-26 1941-10-02 Percy Cox Improvements in and relating to rock boring and like tools
US2397652A (en) * 1944-02-03 1946-04-02 Jr Woyman B Dunlap Underreamer
US2599167A (en) * 1946-02-23 1952-06-03 Dionisotti Joseph Scraping out device for mining boreholes
DE830033C (en) * 1950-01-15 1952-01-31 Guenther Fluegge Dr Ing Drill bits
FR2171290A1 (en) * 1972-02-10 1973-09-21 Atlas Copco Ab
FR2274780A1 (en) * 1974-06-12 1976-01-09 Ugine Aciers BUTTON SIZES FOR ROCK PERFORATION USING A HAMMER BOTTOM OF SIDE BLOWING HOLE

Also Published As

Publication number Publication date
EP0004674A2 (en) 1979-10-17
AT354960B (en) 1980-02-11
ATA243578A (en) 1979-07-15

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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18W Application withdrawn

Withdrawal date: 19810205

RIN1 Information on inventor provided before grant (corrected)

Inventor name: SULZER,JOSEF