EP0707129B1 - Bohrwerkzeug mit Trägerkörper und Schneidkörpern - Google Patents

Bohrwerkzeug mit Trägerkörper und Schneidkörpern Download PDF

Info

Publication number
EP0707129B1
EP0707129B1 EP95810469A EP95810469A EP0707129B1 EP 0707129 B1 EP0707129 B1 EP 0707129B1 EP 95810469 A EP95810469 A EP 95810469A EP 95810469 A EP95810469 A EP 95810469A EP 0707129 B1 EP0707129 B1 EP 0707129B1
Authority
EP
European Patent Office
Prior art keywords
drilling
cutting
measured
width
carrier body
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.)
Expired - Lifetime
Application number
EP95810469A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0707129A2 (de
EP0707129A3 (de
Inventor
Werner Kleine
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 EP0707129A2 publication Critical patent/EP0707129A2/de
Publication of EP0707129A3 publication Critical patent/EP0707129A3/de
Application granted granted Critical
Publication of EP0707129B1 publication Critical patent/EP0707129B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
    • 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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type

Definitions

  • the invention relates to a drilling tool with a carrier body and one or more Cutting bodies, their width measured in the radial direction against the drilling direction subsequent to a continuous decrease in one step and the The cutting body protrudes radially and axially beyond the circumferential contour of the carrier body.
  • Drilling tools of the type shown here are used to mine rock. Concrete, Masonry and the like materials.
  • the structure of the carrier body can they are designed differently. What the drilling tools have in common, however, that they have one or more cutting bodies in the end region on the drilling direction, these cutting bodies made of wear-resistant material such as hard metal. Hard material or the like exist.
  • the carrier body for example, there is the possibility. this in shape of a shaft. which carries a helix on the circumference, which is integrally formed or can be connected to it.
  • the carrier body becomes radial and radial towered over by cutting bodies, it being, for example, in the case of smaller diameters to be a single and, in the case of larger diameters, a plurality of cutting bodies can.
  • Such a drilling tool in particular for larger diameters, is for example known from DE-PS 25 43 578.
  • a generic drilling tool for in particular small diameters is for example from DE-C-834 829 known.
  • This drilling tool has a carrier body and an in Drilling direction adjoining, releasably attached cutting body.
  • the one in radial The width of the cutting body measured in the direction decreases in the opposite direction to the drilling direction following a continuous decrease in one stage.
  • the cutting body protrudes the circumferential contour of the carrier body radially and axially.
  • the carrier body as a hollow drill bit.
  • the region of the support body on the drilling direction becomes both axial and protrudes radially from the cutting body, which is distributed over the circumference as a hollow drill bit trained carrier body are arranged.
  • the length of the cutting body is allowed Do not fall below a minimum dimension in the drilling direction, so that between the cutting body and the carrier body has a sufficiently large contact area, which is able to transmit the forces occurring.
  • a hollow core bit is known for example from DE-PS 24 19 548.
  • the cutting bodies have in common that their width measured in the radial direction is opposite to the drilling direction decreases continuously.
  • the invention has for its object to provide a drilling tool in which even with prolonged use, the friction of the cutting body on the wall of the to be manufactured Drilling is not increased in an efficiency reducing manner.
  • the object is achieved in that the step of reducing in a plane formed by the end of the carrier body on the drilling direction side.
  • the decrease according to the invention of the width of the measured in the radial direction Cutting body in the form of a step leads to a kind of waist of the cutting body in its radially measured width.
  • the level of Reduction coincides with the drilling direction end of the support body.
  • the area projecting in the axial direction for forming the length responsible for the friction contributes.
  • the area of the involvement the cutting body is used in the carrier body can not lead to an unacceptable increase the friction of the drilling tool on the wall of the hole to be made.
  • the friction increases with the duration Use to a certain extent.
  • the maximum amount of friction can be determined by the However, the step according to the invention can be limited in such a way that the friction does not yet occur has an impact on efficiency. This maximum amount depends on the choice the arrangement of the stage, where it has been shown that preferred values then arise when the measured in the axial direction from the free end of the Cutting body to the level of reduction about 0.3 to 0.5 times that corresponds to the total length of the cutting body measured in the axial direction.
  • the cutting body 2 is embedded in the carrier body 1.
  • FIG. 1 also shows, the width R des measured in the radial direction increases Cutting body 2 in the area K continuously down to a step S.
  • the step S there is a further decrease in the width R measured in the radial direction
  • the step S essentially falls with the direction of the drilling direction End E of the carrier body 1 together.
  • the dimension B towers above Cutting body 2, the drilling direction end E of the support body 1, the entire Length of the cutting body 2 corresponds to dimension A.
  • the 2 has a carrier body designed as a hollow drill bit 3, in which cutting bodies 4 are embedded.
  • the cutting body 4 protrude the wall thickness of the carrier body 3 in the radial direction and exceed the drilling direction side End E of the carrier body 3.
  • the width R measured in the radial direction decreases the cutting body 4 against the drilling direction continuously in the area K up to the step S.
  • the width R measured in the radial direction Width R decreases the cutting body 4 against the drilling direction continuously in the area K up to the step S.
  • Level S falls - like that in 2 shows the example shown - with the drilling direction end E of the carrier body 3 together.
  • the length B exceeds the cutting body 4 on the drilling direction side End E of the support body 3 in the drilling direction, during the entire length of the Cutting body 4 corresponds to dimension A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
EP95810469A 1994-10-15 1995-07-17 Bohrwerkzeug mit Trägerkörper und Schneidkörpern Expired - Lifetime EP0707129B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4436916 1994-10-15
DE4436916A DE4436916A1 (de) 1994-10-15 1994-10-15 Bohrwerkzeug mit Trägerkörper und Schneidkörpern

Publications (3)

Publication Number Publication Date
EP0707129A2 EP0707129A2 (de) 1996-04-17
EP0707129A3 EP0707129A3 (de) 1997-08-06
EP0707129B1 true EP0707129B1 (de) 1999-06-16

Family

ID=6530875

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95810469A Expired - Lifetime EP0707129B1 (de) 1994-10-15 1995-07-17 Bohrwerkzeug mit Trägerkörper und Schneidkörpern

Country Status (11)

Country Link
US (1) US5628376A (da)
EP (1) EP0707129B1 (da)
JP (1) JP3706664B2 (da)
KR (1) KR100318971B1 (da)
CN (1) CN1081280C (da)
AT (1) ATE181398T1 (da)
CA (1) CA2160042C (da)
DE (2) DE4436916A1 (da)
DK (1) DK0707129T3 (da)
FI (1) FI111980B (da)
HU (1) HU216401B (da)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR970006498A (ko) * 1995-07-31 1997-02-21 유충식 활성형 인성장호르몬의 정제 방법
DE10054850B4 (de) * 2000-11-04 2009-08-06 Hilti Aktiengesellschaft Bohrer für Gestein
US6599063B1 (en) * 2002-08-31 2003-07-29 Richard E. Capstran Hole saw having efficient slug removal
US6817429B2 (en) 2002-10-03 2004-11-16 Jimmie Sollami Roof bit carbide blade
US7363118B2 (en) * 2004-08-02 2008-04-22 Volvo Trucks North America, Inc. Methods and apparatus for reducing vehicle tire wear
US8459381B2 (en) 2006-12-14 2013-06-11 Longyear Tm, Inc. Drill bits with axially-tapered waterways
US9279292B2 (en) 2013-11-20 2016-03-08 Longyear Tm, Inc. Drill bits having flushing and systems for using same
US7628228B2 (en) * 2006-12-14 2009-12-08 Longyear Tm, Inc. Core drill bit with extended crown height
US9500036B2 (en) 2006-12-14 2016-11-22 Longyear Tm, Inc. Single-waterway drill bits and systems for using same
US9506298B2 (en) 2013-11-20 2016-11-29 Longyear Tm, Inc. Drill bits having blind-hole flushing and systems for using same
US8590646B2 (en) * 2009-09-22 2013-11-26 Longyear Tm, Inc. Impregnated cutting elements with large abrasive cutting media and methods of making and using the same
US8657894B2 (en) 2011-04-15 2014-02-25 Longyear Tm, Inc. Use of resonant mixing to produce impregnated bits
DE102011081443A1 (de) * 2011-08-23 2013-02-28 Robert Bosch Gmbh Bohrkrone, insbesondere Stahlbetonbohrkrone
CN103042606A (zh) * 2012-12-17 2013-04-17 天津市泽华工艺品有限公司 一种多级台阶式石材加工钻筒
EP2745966A1 (de) * 2012-12-21 2014-06-25 HILTI Aktiengesellschaft Bohrkrone mit einem austauschbaren Schneidabschnitt
WO2016115079A1 (en) 2015-01-12 2016-07-21 Longyear Tm, Inc. Drilling tools having matrices with carbide-forming alloys, and methods of making and using same
EP4163037A1 (de) * 2021-10-11 2023-04-12 Hilti Aktiengesellschaft Bohrkrone mit verbesserter entfernung des bohrkerns

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1204805A (en) * 1912-09-11 1916-11-14 Cathrine Macdonald Drill.
US1112498A (en) * 1913-05-01 1914-10-06 Louis Jean Chretien Van Es Drill.
DE384829C (de) * 1921-07-15 1923-11-06 Erich Horn Anschlaege fuer die geloesten Bremskloetze, insbesondere fuer Kraftfahrzeuge
DE385938C (de) * 1922-11-28 1923-12-14 Albert Nuernberg Gesteinbohrer
FR889080A (fr) * 1942-01-16 1943-12-30 Flottmann Ag Foret de mine à tranchant en métal dur rapporté
DE800853C (de) * 1948-10-02 1950-12-11 Adolf Meutsch Spitzeisen fuer Abbauhaemmer
DE834829C (de) * 1949-02-06 1952-03-24 Herbert Jeschke Dr Ing Gesteinsschlagbohrer mit loesbar aufgesetzter Bohrkrone
US2998086A (en) * 1954-09-27 1961-08-29 Joseph Morris Reciprocating core drill
DE2419548C2 (de) 1974-04-23 1983-05-05 Hawera Probst Gmbh + Co, 7980 Ravensburg Bohrwerkzeug für Bohrhämmer
DE2543578C2 (de) 1975-09-30 1986-03-06 Friedrich Duss Maschinenfabrik GmbH & Co, 7265 Neubulach Gesteinsbohrer
DE3105268A1 (de) * 1980-11-03 1982-06-09 Robert Bosch Gmbh, 7000 Stuttgart Bohrkrone
DE4003374C1 (da) * 1990-02-05 1991-05-08 Sfs Stadler Holding Ag, Heerbrugg, Ch
DE9308443U1 (de) * 1993-06-05 1993-08-19 Bilfinger Berger Bau Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen

Also Published As

Publication number Publication date
JPH08199964A (ja) 1996-08-06
FI111980B (fi) 2003-10-15
HU216401B (hu) 1999-06-28
FI954850A0 (fi) 1995-10-12
ATE181398T1 (de) 1999-07-15
CN1128321A (zh) 1996-08-07
CN1081280C (zh) 2002-03-20
HU9502975D0 (en) 1995-12-28
DE59506217D1 (de) 1999-07-22
CA2160042A1 (en) 1996-04-16
US5628376A (en) 1997-05-13
DK0707129T3 (da) 1999-12-13
DE4436916A1 (de) 1996-04-18
EP0707129A2 (de) 1996-04-17
FI954850A (fi) 1996-04-16
CA2160042C (en) 1999-01-12
KR100318971B1 (ko) 2002-04-22
EP0707129A3 (de) 1997-08-06
HUT72769A (en) 1996-05-28
KR960014591A (ko) 1996-05-22
JP3706664B2 (ja) 2005-10-12

Similar Documents

Publication Publication Date Title
EP0707129B1 (de) Bohrwerkzeug mit Trägerkörper und Schneidkörpern
EP1846186B1 (de) Tieflochbohrer
EP0378964B1 (de) Hohlbohrwerkzeug
DE3339211C2 (da)
DE69630344T2 (de) Walzgeschmiedeter Bohrer
EP0778100B1 (de) Drehschlag-Wendelbohrer
DE8134681U1 (de) "drehend arbeitende bohrkrone"
DE19545648A1 (de) Drehschlag-Wendelbohrer
EP0685629A2 (de) Gesteinsbohrer
EP1316669B1 (de) Gesteinbohrwerkzeug
EP0603121B1 (de) Hohlbohrkrone mit stirnseitigen Schneiden
DE102007062539B4 (de) Bohrwerkzeug
DE19807609A1 (de) Spiralbohrer
DE2509140A1 (de) Bohrwerkzeug mit bohrer und aufnahmeteil
EP1083294B1 (de) Bohrwerkzeug
DE60106587T2 (de) Schlagbohrmeissel
DE3024852C2 (da)
WO2012159947A2 (de) Gesteinsbohrer mit freistichen
EP1314506B1 (de) Gewindeschneidwerkzeug
EP0653544B1 (de) Spiralbohrer
EP0706870B1 (de) Hohlbohrkrone mit einem hohlzylindrischen Trägerkörper
EP1083295B1 (de) Bohrwerkzeug
DE102011007406A1 (de) Gewindeschneidende Schraube
DE2625372A1 (de) Gewindeschneidschraube
DE2420442A1 (de) Bohrkrone

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT CH DE DK FR GB IT LI NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE DK FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19980206

17Q First examination report despatched

Effective date: 19980325

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILANO S.P.A.

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE DK FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 181398

Country of ref document: AT

Date of ref document: 19990715

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 59506217

Country of ref document: DE

Date of ref document: 19990722

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990906

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20140710

Year of fee payment: 20

Ref country code: DK

Payment date: 20140710

Year of fee payment: 20

Ref country code: CH

Payment date: 20140714

Year of fee payment: 20

Ref country code: DE

Payment date: 20140709

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20140711

Year of fee payment: 20

Ref country code: FR

Payment date: 20140708

Year of fee payment: 20

Ref country code: AT

Payment date: 20140626

Year of fee payment: 20

Ref country code: GB

Payment date: 20140716

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20140717

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 59506217

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20150717

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20150717

REG Reference to a national code

Ref country code: NL

Ref legal event code: V4

Effective date: 20150717

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20150716

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 181398

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150717

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20150716