[go: up one dir, main page]

EP2775090A3 - Drill bit - Google Patents

Drill bit Download PDF

Info

Publication number
EP2775090A3
EP2775090A3 EP14450008.9A EP14450008A EP2775090A3 EP 2775090 A3 EP2775090 A3 EP 2775090A3 EP 14450008 A EP14450008 A EP 14450008A EP 2775090 A3 EP2775090 A3 EP 2775090A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
cutting edge
face
over
cutting
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Withdrawn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
EP14450008.9A
Other languages
German (de)
French (fr)
Other versions
EP2775090A2 (en
Inventor
Karl BÖHM
Dieter GLANTSCHNEGG
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.)
Dywidag Systems International GmbH Austria
Dywidag Systems International GmbH
Original Assignee
Dywidag Systems International GmbH Austria
Dywidag Systems International 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 Dywidag Systems International GmbH Austria, Dywidag Systems International GmbH filed Critical Dywidag Systems International GmbH Austria
Publication of EP2775090A2 publication Critical patent/EP2775090A2/en
Publication of EP2775090A3 publication Critical patent/EP2775090A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D20/00—Setting anchoring-bolts
    • 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
    • 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
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
    • 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

Landscapes

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

Abstract

Bei einer Bohrkrone (1) für eine Vorrichtung zum Bohren von Löchern in weichem bzw. mildem Boden- oder Gesteinsmaterial mit einer Mehrzahl von sich zumindest über eine Stirnfläche (2) der Bohrkrone (1) erstreckenden Schneiden (3, 5), welche Schneiden (3, 5) mit sowohl wenigstens zwei voneinander verschiedenen "radialen" Erstreckungen als auch zwei voneinander verschiedenen "axialen" Erstreckungen in Richtung einer Drehachse (6) der Bohrkrone (1) ausgebildet sind, sowie wenigstens eine Öffnung (11) zum Ausbringen von Spülfluid, erstreckt sich eine eine geringere radiale Erstreckung aufweisende erste Schneide (3) über den gesamten Bohrkronendurchmesser (a), sind an die eine geringere radiale Erstreckung aufweisende erste Schneide (3) zwei über einen Außenumfang der Stirnfläche (2) der Bohrkrone (1) weiter als die erste Schneide (3) vorragende zweite Schneiden (5) vorgesehen und die zweiten Schneiden (5) sind im Bereich der Stirnfläche (2) der Bohrkrone (1) und/oder im Bereich eines Bohrkronenschafts (4) geneigt, mit der ersten Schneide (3) und/oder der mit der Drehachse (6) der Bohrkrone (1) einen spitzen Winkel (α) einschließend ausgebildet.

Figure imgaf001
In a drill bit (1) for a device for drilling holes in soft soil or rock material having a plurality of cutting edges (3, 5) extending at least over an end face (2) of the drill bit (1) which cut ( 3, 5) with both at least two mutually different "radial" extensions and two mutually different "axial" extensions in the direction of a rotation axis (6) of the drill bit (1) are formed, and at least one opening (11) for discharging flushing fluid, extends a lower radial extent having first cutting edge (3) over the entire Bohrkronendurchmesser (a), to the lower radial extent having first cutting edge (3) two over an outer periphery of the end face (2) of the drill bit (1) on the first cutting edge (3) projecting second cutting (5) provided and the second cutting edges (5) are in the region of the end face (2) of the drill bit (1) and / or in the area a drill bit shank (4) inclined, with the first cutting edge (3) and / or with the axis of rotation (6) of the drill bit (1) formed an acute angle (α) including.
Figure imgaf001
EP14450008.9A 2013-03-05 2014-03-05 Drill bit Withdrawn EP2775090A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATGM72/2013U AT13738U1 (en) 2013-03-05 2013-03-05 drill bit

Publications (2)

Publication Number Publication Date
EP2775090A2 EP2775090A2 (en) 2014-09-10
EP2775090A3 true EP2775090A3 (en) 2016-05-18

Family

ID=51176839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14450008.9A Withdrawn EP2775090A3 (en) 2013-03-05 2014-03-05 Drill bit

Country Status (2)

Country Link
EP (1) EP2775090A3 (en)
AT (1) AT13738U1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106907112B (en) * 2017-05-05 2023-06-20 宜昌神达科技有限公司 PDC drill bit for well drilling

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1169369A (en) * 1916-01-25 Samuel Peck Drill.
DE865874C (en) * 1941-05-09 1953-02-05 Wengeler & Kalthoff Rock impact drill with carbide tipped chisel cutting edge
DE937101C (en) * 1949-03-11 1955-12-29 Gerhard Kuehne Rock drill for rotary drilling
DE941182C (en) * 1952-03-18 1956-04-05 Wilhelm Steinkopf Impact drill bit for rock drill
FR1265943A (en) * 1960-05-25 1961-07-07 Europ De Turboforage Soc Drill bit for soil drilling
US3339649A (en) * 1965-01-19 1967-09-05 Atlas Copco Ab Rock drill bits
DE2701044A1 (en) * 1976-01-12 1977-07-21 Reed Tool Co EARTH DRILLING JIG
DE4012772A1 (en) * 1990-04-21 1991-10-24 Westa Werkzeugbau Hammer drill bit - has cruciform cutters with notches in two opposite ones
DE29611966U1 (en) * 1996-07-10 1997-11-13 Friedr. Ischebeck Gmbh, 58256 Ennepetal Core bit
AT12096U1 (en) * 2009-12-23 2011-10-15 Dywidag Systems Int Gmbh DRILLING CIRCULAR FOR DRILLING, IN PARTICULAR PUNCHING OR DRILLING OF HOLES IN GROUND OR ROCK MATERIALS

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2239461A (en) * 1938-08-31 1941-04-22 Mann Reginald William Rock boring bit
DE19545648A1 (en) * 1995-12-07 1997-06-12 Hilti Ag Rotary impact twist drill
DE19724373A1 (en) * 1997-06-10 1998-12-17 Hilti Ag Rock drill
DE19916975A1 (en) 1999-04-15 2000-10-19 Hilti Ag Rock drill
DE10053344A1 (en) * 2000-10-27 2002-05-08 Hilti Ag rock drill
DE102008043999A1 (en) * 2008-11-24 2010-05-27 Robert Bosch Gmbh Drilling tool, in particular for drilling and / or chiseling devices

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1169369A (en) * 1916-01-25 Samuel Peck Drill.
DE865874C (en) * 1941-05-09 1953-02-05 Wengeler & Kalthoff Rock impact drill with carbide tipped chisel cutting edge
DE937101C (en) * 1949-03-11 1955-12-29 Gerhard Kuehne Rock drill for rotary drilling
DE941182C (en) * 1952-03-18 1956-04-05 Wilhelm Steinkopf Impact drill bit for rock drill
FR1265943A (en) * 1960-05-25 1961-07-07 Europ De Turboforage Soc Drill bit for soil drilling
US3339649A (en) * 1965-01-19 1967-09-05 Atlas Copco Ab Rock drill bits
DE2701044A1 (en) * 1976-01-12 1977-07-21 Reed Tool Co EARTH DRILLING JIG
DE4012772A1 (en) * 1990-04-21 1991-10-24 Westa Werkzeugbau Hammer drill bit - has cruciform cutters with notches in two opposite ones
DE29611966U1 (en) * 1996-07-10 1997-11-13 Friedr. Ischebeck Gmbh, 58256 Ennepetal Core bit
AT12096U1 (en) * 2009-12-23 2011-10-15 Dywidag Systems Int Gmbh DRILLING CIRCULAR FOR DRILLING, IN PARTICULAR PUNCHING OR DRILLING OF HOLES IN GROUND OR ROCK MATERIALS

Also Published As

Publication number Publication date
AT13738U1 (en) 2014-07-15
EP2775090A2 (en) 2014-09-10

Similar Documents

Publication Publication Date Title
EP2830799B1 (en) Drill bit
EP2987577B1 (en) Hole saw
DE102014112066B4 (en) Coupler for a rotary cutter assembly
DE102011115484B4 (en) Improved cutting tip and concentric cutting tool using it
DE102014212714A1 (en) drill head
DE102010052845B4 (en) Rotary cutting tool and guide insert for this
EP1184115A1 (en) Rock drill
DE102010045388A1 (en) Carbide head for a tool for processing solid material
EP2050529A3 (en) Cutting tool for drilling and rotating and cutting insert for same
RU2014123685A (en) DRILL BIT FOR ROCK DRILLING TOOL AND ROCK DRILLING TOOL
EP2775090A3 (en) Drill bit
WO2011066831A3 (en) A rotary drill
DE112011101524T5 (en) Universal tool with an O-groove
EP2886229A1 (en) Drill with depth marker
EP3144099B1 (en) Insert for a drilling machine
EP2915613B1 (en) Cross hole countersink
DE202014105466U1 (en) drilling
DE202013101404U1 (en) drilling
DE102011122403B3 (en) Method for producing a bevel and / or step drill and bevel and / or step drills
DE102011076365A1 (en) rock drill
DE102014004457B4 (en) "Transmitter Housing and Method of Measuring Fluid Pressure"
DE2749864C3 (en) Drilling tools and drill pipes for drilling in seams
DE10334610B4 (en) wellhead
DE2152951B2 (en) Horizontal boring machine with swarf removal device - uses additional jet of oil to retain swarf and cooling oil
AT14973U1 (en) Use for a drill

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140305

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

RIC1 Information provided on ipc code assigned before grant

Ipc: E21B 10/62 20060101ALI20160414BHEP

Ipc: E21B 10/36 20060101AFI20160414BHEP

Ipc: E21B 10/58 20060101ALI20160414BHEP

Ipc: E21B 10/60 20060101ALI20160414BHEP

Ipc: E21B 10/38 20060101ALI20160414BHEP

R17P Request for examination filed (corrected)

Effective date: 20161024

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20180111

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20180523