EP0685629A3 - Rock drill bit. - Google Patents

Rock drill bit. Download PDF

Info

Publication number
EP0685629A3
EP0685629A3 EP95810187A EP95810187A EP0685629A3 EP 0685629 A3 EP0685629 A3 EP 0685629A3 EP 95810187 A EP95810187 A EP 95810187A EP 95810187 A EP95810187 A EP 95810187A EP 0685629 A3 EP0685629 A3 EP 0685629A3
Authority
EP
European Patent Office
Prior art keywords
discharge grooves
drill
grooves
drill head
shaft
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
EP95810187A
Other languages
German (de)
French (fr)
Other versions
EP0685629A2 (en
EP0685629B1 (en
Inventor
Rainer Batliner
Axel Neukirchen
Anton Knoller
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.)
Hilti AG
Original Assignee
Hilti AG
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 Hilti AG filed Critical Hilti AG
Publication of EP0685629A2 publication Critical patent/EP0685629A2/en
Publication of EP0685629A3 publication Critical patent/EP0685629A3/en
Application granted granted Critical
Publication of EP0685629B1 publication Critical patent/EP0685629B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
    • 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
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Steroid Compounds (AREA)

Abstract

The bit has a clamping shaft (1), a drill shaft (2) with at least four parallel adjacently arranged swarf grooves (4-7). A drill head (3) of hard metal is connected with the drill shaft with four peripherally distributed discharge grooves (8-11) running in the longitudinal direction of the drill head. The discharge grooves have a differently sized internal cross-section, that of two first diametrically opposed discharge grooves (8,10) being larger than that of two second diametrically opposed discharge grooves (9,11). The discharge grooves have a differently sized radial distance from the centre of the drill head. <IMAGE>
EP95810187A 1994-06-04 1995-03-20 Rock drill bit Expired - Lifetime EP0685629B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4419641A DE4419641A1 (en) 1994-06-04 1994-06-04 Rock drill
DE4419641 1994-06-04

Publications (3)

Publication Number Publication Date
EP0685629A2 EP0685629A2 (en) 1995-12-06
EP0685629A3 true EP0685629A3 (en) 1996-12-18
EP0685629B1 EP0685629B1 (en) 2002-08-14

Family

ID=6519846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810187A Expired - Lifetime EP0685629B1 (en) 1994-06-04 1995-03-20 Rock drill bit

Country Status (16)

Country Link
US (1) US5553682A (en)
EP (1) EP0685629B1 (en)
JP (1) JPH07329049A (en)
KR (1) KR960000438A (en)
CN (1) CN1116683A (en)
AT (1) ATE222321T1 (en)
AU (1) AU690659B2 (en)
CA (1) CA2150164C (en)
CZ (1) CZ82895A3 (en)
DE (2) DE4419641A1 (en)
DK (1) DK0685629T3 (en)
ES (1) ES2181759T3 (en)
FI (1) FI108622B (en)
HU (1) HU216598B (en)
PL (1) PL308889A1 (en)
TW (1) TW284718B (en)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19707115A1 (en) * 1997-02-22 1998-08-27 Hilti Ag Drilling and / or chisel tools
DE10009732A1 (en) * 2000-03-02 2001-09-06 Hawera Probst Gmbh Rock drill has drill head, spiral conveyor with main and subsidiary webs, conveyor edges, main and subsidiary cutter-blades.
DE10047332A1 (en) * 2000-09-25 2002-04-11 Hilti Ag Tool with helix
KR20010051858A (en) * 2000-11-22 2001-06-25 윤광근 breaker chisel
DE20108179U1 (en) 2001-05-15 2001-07-26 Plica Werkzeugfabrik Ag, Mollis drill
CA2790224C (en) 2002-08-08 2013-07-30 Surgibit Ip Holdings Pty Limited A drill bit and method for producing a drill bit
GB2393681A (en) * 2002-10-03 2004-04-07 Black & Decker Inc Masonry drilling tool
US8146256B2 (en) * 2003-10-31 2012-04-03 Stanley Black & Decker, Inc. Metal demolition shears with indexable, integrated wear plate/piercing tip
DE102004028099A1 (en) * 2004-06-09 2005-12-29 Hilti Ag drill
GB2433905B (en) * 2006-01-06 2009-07-15 Kuldip Singh Kanth Apparatus for use in the installation of a shower enclosure
DE102006000208A1 (en) 2006-04-28 2007-10-31 Hilti Ag Rotary hammer drill with four-turn drill bit shank
DE102007062539B4 (en) * 2006-12-21 2012-08-23 Stefan Rothenaicher drilling
DE202006019501U1 (en) * 2006-12-21 2008-04-30 Rothenaicher, Stefan drilling
DE102006035306A1 (en) 2006-12-22 2008-06-26 Hilti Ag Rotary impact drill with hard material insert
DE102007000486A1 (en) 2007-09-05 2009-03-12 Hilti Aktiengesellschaft Strengthening brittle hard material surfaces, e.g. in inserts for tools for processing brittle workpieces, involves laser shock hammering by applying laser impulses to generate plasma bubble
US20090148250A1 (en) * 2007-12-05 2009-06-11 Wayne Chappell Drill Bit
EP2116321B1 (en) 2008-05-09 2014-01-08 Irwin Industrial Tool Company Boring tool, in particular twist drill
DE102008022945A1 (en) 2008-05-09 2009-12-03 Irwin Industrial Tools Gmbh Drilling tool, in particular twist drills
US7861807B2 (en) * 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
CN103433535B (en) * 2013-08-26 2015-11-04 深圳市金洲精工科技股份有限公司 A kind of microbit
DE102014203327A1 (en) * 2014-02-25 2015-08-27 Robert Bosch Gmbh drilling
CN104493263A (en) * 2014-09-28 2015-04-08 上海奥林汽车安全系统有限公司 Double-edge band twist drill with high machining precision
CN105108211B (en) * 2015-09-15 2018-06-26 深圳市金洲精工科技股份有限公司 Side set cutting drill head
DE102017117664A1 (en) * 2017-08-03 2019-02-07 Drebo Werkzeugfabrik Gmbh drill
US11679442B2 (en) 2018-06-22 2023-06-20 Maestro Logistics, Llc Drill bit and method for making a drill bit
US11948700B2 (en) 2020-11-11 2024-04-02 Grant Charters In-situ method of drilling to collect dry samples from a nuclear reactor core interior for analysis

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB512830A (en) * 1938-03-17 1939-09-27 John Joseph Rawlings Improvements in percussion drills
US2370706A (en) * 1943-11-29 1945-03-06 Rudolf W Andreasson Drill
US2673716A (en) * 1950-09-02 1954-03-30 Clyde E Avery Bit
EP0452255A2 (en) * 1990-04-09 1991-10-16 HILTI Aktiengesellschaft Stone drill bit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US580398A (en) * 1897-04-13 Peter j
US599537A (en) * 1898-02-22 Martin steudner
US750537A (en) * 1904-01-26 Drilling-tool
US2217202A (en) * 1939-10-19 1940-10-08 Rawlplug Company Inc Percussion drill
US3089354A (en) * 1959-10-30 1963-05-14 Spiralbohrer Und Werkzeugfabri Method for the production of cutting tools
CH626557A5 (en) * 1978-09-28 1981-11-30 Guex Philippe & Fils Sa
US4898503A (en) * 1988-07-05 1990-02-06 Lockheed Corporation Twist drill
US5297456A (en) * 1990-02-07 1994-03-29 Gn Tool Co., Ltd. Cutting tool with twisted edge and manufacturing method thereof
US5265688A (en) * 1990-04-09 1993-11-30 Hilti Aktiengesellschaft Rock drill
SE507842C2 (en) * 1992-09-24 1998-07-20 Sandvik Ab Drill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB512830A (en) * 1938-03-17 1939-09-27 John Joseph Rawlings Improvements in percussion drills
US2370706A (en) * 1943-11-29 1945-03-06 Rudolf W Andreasson Drill
US2673716A (en) * 1950-09-02 1954-03-30 Clyde E Avery Bit
EP0452255A2 (en) * 1990-04-09 1991-10-16 HILTI Aktiengesellschaft Stone drill bit

Also Published As

Publication number Publication date
EP0685629A2 (en) 1995-12-06
DE59510316D1 (en) 2002-09-19
CA2150164A1 (en) 1995-12-05
CA2150164C (en) 2001-02-27
DK0685629T3 (en) 2002-12-02
FI952565A (en) 1995-12-05
DE4419641A1 (en) 1995-12-07
CN1116683A (en) 1996-02-14
FI952565A0 (en) 1995-05-26
PL308889A1 (en) 1995-12-11
AU2039595A (en) 1995-12-14
KR960000438A (en) 1996-01-25
EP0685629B1 (en) 2002-08-14
HUT71760A (en) 1996-01-29
JPH07329049A (en) 1995-12-19
ATE222321T1 (en) 2002-08-15
FI108622B (en) 2002-02-28
HU9501624D0 (en) 1995-07-28
HU216598B (en) 1999-07-28
ES2181759T3 (en) 2003-03-01
AU690659B2 (en) 1998-04-30
CZ82895A3 (en) 1995-12-13
US5553682A (en) 1996-09-10
TW284718B (en) 1996-09-01

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