EP1415065B1 - Couronne de sondage - Google Patents

Couronne de sondage Download PDF

Info

Publication number
EP1415065B1
EP1415065B1 EP02759861A EP02759861A EP1415065B1 EP 1415065 B1 EP1415065 B1 EP 1415065B1 EP 02759861 A EP02759861 A EP 02759861A EP 02759861 A EP02759861 A EP 02759861A EP 1415065 B1 EP1415065 B1 EP 1415065B1
Authority
EP
European Patent Office
Prior art keywords
hard
drill head
drill
drill bit
inserts
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
EP02759861A
Other languages
German (de)
English (en)
Other versions
EP1415065A1 (fr
Inventor
Romain Clesen
Guy Thiller
Joseph Mocivnik
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.)
Techmo Entwicklungs und Vertriebs GmbH
Paul Wurth SA
Original Assignee
Techmo Entwicklungs und Vertriebs GmbH
Paul Wurth SA
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 Techmo Entwicklungs und Vertriebs GmbH, Paul Wurth SA filed Critical Techmo Entwicklungs und Vertriebs GmbH
Publication of EP1415065A1 publication Critical patent/EP1415065A1/fr
Application granted granted Critical
Publication of EP1415065B1 publication Critical patent/EP1415065B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts

Definitions

  • the present invention relates to a drill bit for drilling, in particular rotary impact drilling, of a hole, in particular a sting hole of a blast furnace, wherein the Drilling bit from a drill head with a plurality of Eartmaterial- or carbide inserts and a base body for Connection with a drive element etc. for driving or applying the drill bit, wherein the hard material or carbide inserts in holes or openings of the drill head, wherein the hard material or carbide inserts in holes or openings of the drill head are received, wherein at least a Hartmaterial- or carbide insert on the in the drill head received end at least partially with a curved or curved surface contour is formed, which with a complementary, curved or curved Surface of the drill head and / or the body cooperates.
  • Hartmaterial- or cemented carbide inserts such as a
  • sleeve-shaped Inserts can be made, like this For example, from EP-B 0 581 534, US-A 4,951,672, EP-A 0 573 135, EP-A 0 943 708 or EP-A 0 353 214 can be seen.
  • Hartmaterial- or hard metal inserts for example with the base material of a drill head to solder to a To avoid falling out of the hard material inserts, such as this example, the DF-A 34 08 225 can be seen.
  • the present invention now aims at providing or arranging hard material or hard metal inserts a drill bit of a drill bit ensure that itself at uneven stress or wear of such Hartmaterial- or hard metal inserts a corresponding large area or a large and substantially constant Surface area for the 'transfer of the Impact energy to achieve a 'correspondingly fast Drilling progress is provided and even if necessary loosened insert avoided falling out becomes.
  • the drill bit according to the invention starting from a drill bit of the aforementioned Art essentially characterized in that the with the curved or curved surface contour formed End of hard material or Carbide insert one opposite the end of the hard material projecting from the drill head or carbide insert enlarged external dimensions having. This can be done even with a slightly relaxed Hard material or carbide insert falling out the same avoided from the drill head or the main body become.
  • Enlarged external dimensions can be the HartmaterialThin safely in a corresponding receiving opening store in the drill bit and it can further be a corresponding large surface for safe transmission of the Provide impact energy.
  • At least one Hartmaterial- or carbide insert the end received in the drill head with at least partially a curved or curved surface contour formed. which is with a complementary, curved or curved surface of the drill head and / or the base body It will ensure that, even in the case of uneven Strain or wear of such Hard material or .. carbide insert and one if necessary resulting loosening of the same in the receiving opening Nevertheless, the complete reliable in the drill head Dissolving energy or in particular impact energy of the Basic body of the drill bit over the respective hard material insert or all hard material inserts in the treated Material can be introduced or transferred.
  • the curved surface contour of the end of hard material or cemented carbide insert from a spherical one Surface or a spherical layer is formed, whereby by such a spherical surface or Ball layer a cost-effective and simple production with the greatest possible adaptation of the positioning of an optionally loosened hard material insert in the drill head or the corresponding receiving opening can be achieved.
  • the light Width of a hole or .. opening for receiving the Hard material or carbide insert the outer dimensions of the end of the hard material to be received in the drill head or Carbide insert at least slightly exceeds and that the Hartmaterial- or carbide insert in the in the Bore received portion surrounded by a sleeve is, the outer dimensions of the clear width of the bore adapted to the drill head, wherein, as stated in the introduction, the use of appropriate pods laying down Hard material or carbide inserts for themselves seen is known.
  • that surrounding the Hartmaterial- or carbide insert Sleeve weldable with the material of the drill head is. While in known embodiments hard material or carbide inserts usually directly with the material were soldered to the drill head or the base body, can be welded by the use of a sleeve between the sleeve material and the material of the Make body or the drill head, while usually a welding of the Hartmaterial- or Carbide inserts used materials not possible is.
  • a substantially hood or cap-shaped drill head which surrounds the body of the drill bit, if necessary requires an increased manufacturing effort is according to a further preferred embodiment, that the drill head in particular at positions or lines for receiving in each case a plurality of hard material or carbide inserts is formed divided and that the subregions of the drill head after receiving the hard material or carbide inserts in the holes or openings connectable to each other and / or to the base body, in particular welded, are.
  • Such subareas or sections of the drill head can be also correspondingly simple and exactly matched to each other which, in turn, the individual elements of the drill head after a recording of hard material or Carbide inserts also connected to the main body, in particular welded.
  • Fig. 1 and 2 is generally designated 1 a drill bit, wherein a base body 2, to which a not closer illustrated drill pipe, for example via a schematic indicated screw 3 connects, in one piece is formed with a drill head 4.
  • the drill head 4 has a plurality of receiving openings 5, in each of which Hard material or carbide inserts 6 arranged are.
  • the determination of hard material or carbide inserts 6 takes place in the embodiment shown in FIGS. 1 and 2 using sleeves 8 containing the hard material or hard metal inserts 6 over a partial area surrounded by their longitudinal extent, the sleeves 8 with the Material of the drill head 4 via schematically indicated Welds or welds 9 are welded.
  • Each hard material or hard metal insert 6 has on the facing away from the drill head projecting end, in the drill head 4 recorded end on an area 10, which a For example, spherical shaped surface 11 has.
  • the receiving opening 5 is also with a corresponding curved or curved, complementary surface formed.
  • both hard material or carbide insert 6 and the receiving opening 5 can be ensured that, in particular, as the Stress of hard material or carbide inserts 6, which, for example, a relaxation in the individual receiving openings 5 can lead reliably even with a slight inclination in the respective Receiving opening 5 a corresponding power transmission from Base 2 or drill head 4 on the hard material or Carbide inserts 6 can be done.
  • the Hartmaterial- or carbide inserts 6 have hiebei in the end region 10 a stepped portion 13, wherein the end region 10 with respect to the projecting from the drill head 4 End of the hard material or cemented carbide insert 6 Has enlarged outer dimensions, so that through the Use of the sleeve 8 every Hartmaterial- or carbide insert securely held in the drill head 4. Because the Sleeve 8 usually from a compared to the Hartmaterial- or hard metal insert 6 softer or less solid Material is, can be particularly off-centered Stress of Hard Material or Carbide Inserts 6 expect a loosening of the same, but by the remote Area or the shoulder 13 falling out of the Hard material insert 6 from the receiving opening 5 avoided can be.
  • modified Embodiment is again denoted by 2 main body is formed separately from the drill head 4 and it is Further, the drill head 4 divided into two halves, which in particular in Fig. 4 with 4 'and 4 "are designated.
  • FIGS. 1 and 2 show both the hard material or carbide inserts 6 as well the receiving openings 5 each complementary, domed or curved surfaces 11. Furthermore, one is again remote area or a shoulder 13 on the in the drill head 4 received end of each hard material or carbide insert 6 as a safeguard against falling out the respective receiving opening 5 of the drill head 4 is provided.

Landscapes

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

Claims (7)

  1. Couronne de forage (1), en particulier de forage par rotary-percussion, notamment d'un trou de coulée d'un haut-fourneau, la couronne (1) se composant d'une tête de forage (4) avec une pluralité de garnitures en matériau dur ou métal dur (6) et d'un corps de base (2) pour l'assemblage avec un élément de commande etc... pour l'entraínement ou l'alimentation de la couronne de forage (1), les garnitures en matériau dur ou métal dur (6) étant logées dans des trous ou percées (5) de la tête de forage (4), au moins une garniture en matériau dur ou métal dur (6) étant configurée au moins en partie, sur l'extrémité logée dans la tête de forage (4), avec un contour superficiel (11) cintré ou incurvé qui coopère avec une surface complémentaire, cintrée ou incurvée, de la tête de forage (4) et/ou du corps de base (2), caractérisée en ce que l'extrémité (10) de la garniture en matériau dur ou métal dur (6), configurée avec le contour superficiel (11) cintré ou incurvé, présente des dimensions extérieures (13) agrandies par rapport à l'extrémité de la garniture en matériau dur ou métal dur (6) dépassant de la tête de forage (4).
  2. Couronne de forage suivant la revendication 1, caractérisée en ce que le contour superficiel cintré (11) de l'extrémité (10) de la garniture en matériau dur ou métal dur (6) est formé par une surface sphérique ou une couche sphérique.
  3. Couronne de forage suivant l'une des revendications 1 et 2, caractérisée en ce que le diamètre intérieur d'un trou ou percée (5) pour recevoir la garniture en matériau dur ou métal dur (6) dépasse au moins légèrement par le haut les dimensions extérieures de l'extrémité, à loger dans la tête de forage (4), de la garniture en matériau dur ou métal dur (6), et en ce que la garniture en matériau dur ou métal dur (6) est entourée dans la zone partielle logée dans le trou (5) par un manchon (8), dont les dimensions extérieures sont adaptées au diamètre intérieur du trou (5) de la tête de forage (4).
  4. Couronne de forage suivant la revendication 3, caractérisée en ce que le manchon (8) entourant la garniture en matériau dur ou métal dur (6) peut être soudé avec le matériau de la tête de forage (4).
  5. Couronne de forage suivant l'une des revendications 1 à 4, caractérisée en ce que les garnitures en matériau dur ou métal dur (6) peuvent être encastrées dans les trous ou ouvertures de passage (5) à partir du côté de la tête de forage (4) tourné vers le corps de base (2) de la couronne de forage (1), et en ce que la tête de forage (4) peut être assemblée, en particulier soudée, avec le corps de base (2) après le logement des garnitures en matériau dur ou métal dur (6).
  6. Couronne de forage suivant la revendication 5, caractérisée en ce que la tête de forage (4) a une configuration partagée en particulier en des positions ou lignes pour recevoir à chaque fois une pluralité de garnitures en matériau dur ou métal dur (6), et en ce que les zones partielles (4', 4") de la tête de forage (4) peuvent être assemblées entre elles et/ou avec le corps de base (2), en particulier soudées, après le logement des garnitures en matériau dur ou métal dur (6) dans les trous ou percées (5).
  7. Couronne de forage suivant l'une des revendications 5 et 6, caractérisée en ce que les trous ou percées (5) de la tête de forage (4) présentent une section transversale rétrécie en direction de la surface extérieure de la tête de forage (4) et/ou ont une configuration étagée ou avec une section transversale élargie dans la zone extrême opposée à la surface extérieure de la tête de forage (4).
EP02759861A 2001-08-01 2002-07-31 Couronne de sondage Expired - Lifetime EP1415065B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT12012001 2001-08-01
AT12012001 2001-08-01
PCT/AT2002/000227 WO2003012244A1 (fr) 2001-08-01 2002-07-31 Couronne de sondage

Publications (2)

Publication Number Publication Date
EP1415065A1 EP1415065A1 (fr) 2004-05-06
EP1415065B1 true EP1415065B1 (fr) 2005-01-12

Family

ID=3687057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02759861A Expired - Lifetime EP1415065B1 (fr) 2001-08-01 2002-07-31 Couronne de sondage

Country Status (9)

Country Link
US (1) US6926104B2 (fr)
EP (1) EP1415065B1 (fr)
AR (1) AR035264A1 (fr)
AT (1) ATE287024T1 (fr)
DE (1) DE50202009D1 (fr)
ES (1) ES2236562T3 (fr)
TW (1) TWI225431B (fr)
WO (1) WO2003012244A1 (fr)
ZA (1) ZA200401101B (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060135966A1 (en) * 2004-11-15 2006-06-22 Laurent Schaller Catheter-based tissue remodeling devices and methods
US20090000827A1 (en) * 2007-06-26 2009-01-01 Baker Hughes Incorporated Cutter pocket having reduced stress concentration
US20100025114A1 (en) * 2008-01-22 2010-02-04 Brady William J PCD Percussion Drill Bit
US20100108398A1 (en) * 2008-11-06 2010-05-06 Dongmin Niu Percussion Rock Drilling Bit with More Efficient Flushing
RU2450113C1 (ru) * 2010-12-29 2012-05-10 Николай Митрофанович Панин Буровая коронка
JP1569597S (fr) * 2016-07-14 2017-02-20
JP1569599S (fr) * 2016-07-14 2017-02-20
JP1569589S (fr) * 2016-07-14 2017-02-20
BR112019007179B1 (pt) * 2016-10-10 2022-07-12 Tmt-Tapping Measuring Technology Sàrl Broca de perfuração

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3548959A (en) * 1969-07-10 1970-12-22 Gulf Research Development Co Relief-type jet bits
US3693736A (en) * 1969-09-04 1972-09-26 Mission Mfg Co Cutter insert for rock bits
US4014395A (en) * 1974-12-05 1977-03-29 Smith-Williston, Inc. Rock drill bit insert retaining sleeve assembly
US4047583A (en) * 1976-06-01 1977-09-13 Dresser Industries, Inc. Earth boring cutting element retention system
DE2610734A1 (de) * 1976-03-13 1977-09-22 Krupp Gmbh Mit schneid- und schlagstiften bestuecktes werkzeug zum abtragen von gesteinen und mineralien
DE3408225A1 (de) 1984-03-07 1985-09-19 Richard 5383 Kierspe Karnebogen Schlagbohrkrone
US4660660A (en) * 1985-05-17 1987-04-28 Trw Inc. Round/flat carbide seat
US4951672A (en) 1985-07-02 1990-08-28 General Electric Company Controlled impedance monitoring lead wires
SE469395B (sv) 1988-07-28 1993-06-28 Sandvik Ab Borrkrona med haardmetallskaer
ZA93584B (en) 1992-05-27 1993-09-01 De Beers Ind Diamond Abrasive tools.
ZA935114B (en) 1992-07-23 1994-02-08 De Beers Ind Diamond Abrasive tools
US5558170A (en) * 1992-12-23 1996-09-24 Baroid Technology, Inc. Method and apparatus for improving drill bit stability
US6918455B2 (en) * 1997-06-30 2005-07-19 Smith International Drill bit with large inserts
US5947215A (en) * 1997-11-06 1999-09-07 Sandvik Ab Diamond enhanced rock drill bit for percussive drilling
EP0943780A3 (fr) 1998-03-18 2000-07-19 Plica Werkzeugfabrik Ag Outil de forage
FR2776307B1 (fr) 1998-03-19 2000-06-23 Staubli Sa Ets Mecanisme de tirage pour mecanique d'armure et metier a tisser comprenant un tel mecanisme de tirage
SE515294C2 (sv) * 1999-11-25 2001-07-09 Sandvik Ab Bergborrkrona och stift för slående borrning samt metod att tillverka en bergborrkrona för slående borrning
SE514931C2 (sv) * 2000-03-02 2001-05-21 Sandvik Ab Bergborrkrona samt förfarande för dess tillverkning
US6655480B1 (en) * 2000-10-05 2003-12-02 Kennametal Inc. Cutting insert for percussion drill bit

Also Published As

Publication number Publication date
EP1415065A1 (fr) 2004-05-06
DE50202009D1 (de) 2005-02-17
US6926104B2 (en) 2005-08-09
WO2003012244A1 (fr) 2003-02-13
ES2236562T3 (es) 2005-07-16
ATE287024T1 (de) 2005-01-15
US20040182610A1 (en) 2004-09-23
AR035264A1 (es) 2004-05-05
ZA200401101B (en) 2007-01-31
TWI225431B (en) 2004-12-21

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