FR2627541A2 - Single piece rock drill bit - has central rotary tool head including radial slots or grooves to receive cutting blade inserts with multiple diamond teeth - Google Patents

Single piece rock drill bit - has central rotary tool head including radial slots or grooves to receive cutting blade inserts with multiple diamond teeth Download PDF

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Publication number
FR2627541A2
FR2627541A2 FR8802565A FR8802565A FR2627541A2 FR 2627541 A2 FR2627541 A2 FR 2627541A2 FR 8802565 A FR8802565 A FR 8802565A FR 8802565 A FR8802565 A FR 8802565A FR 2627541 A2 FR2627541 A2 FR 2627541A2
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FR
France
Prior art keywords
drill bit
blades
tool head
grooves
cutting blade
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
FR8802565A
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French (fr)
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FR2627541B2 (en
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Individual
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Individual
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Filing date
Publication date
Priority claimed from FR8615769A external-priority patent/FR2606069B1/en
Application filed by Individual filed Critical Individual
Priority to FR888802565A priority Critical patent/FR2627541B2/en
Publication of FR2627541A2 publication Critical patent/FR2627541A2/en
Application granted granted Critical
Publication of FR2627541B2 publication Critical patent/FR2627541B2/en
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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits

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  • 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)
  • Drilling Tools (AREA)

Abstract

The rotary drill bit has a number of radial blades (3) projecting outwardly from a central tool head portion. The blades each carry a series of polycrystalline diamond cutting teeth. The blades are fabricated separately from the tool head (1) and are received by groove-type locating position (2) in the head. The blades are secured within the groove positions by bolts (6) or similar fasteners. ADVANTAGE - Simplified mfg. and assembly procedures.

Description

Le présent certificat d'addition a pour objet de presenter un mode de réalisation particulier de l'invention decrite dans la demande de brevet 8615769 . Dans cette addition toutes les revendications de l'invention de base sont conservées. The purpose of this addition certificate is to present a particular embodiment of the invention described in patent application 8615769. In this addition all the claims of the basic invention are retained.

L'invention de base, telle qu'elle est décrite dans la demande de brevet principal, présente l'inconvénient d'être assez onéreuse å fabriquer; l'usinage en relief des lames radiales par taillage dans la masse du corps de l'outil est d'autant plus coûteux que le relief est plus important. Par ailleurs le trépan en une seule pièce ainsi réalisé n'est pas réparable. The basic invention, as described in the main patent application, has the disadvantage of being fairly expensive to manufacture; the machining in relief of the radial blades by cutting into the mass of the body of the tool is all the more costly the higher the relief. Furthermore, the single-piece drill bit thus produced cannot be repaired.

Pour pallier ces inconvénients, il est possible de réaliser chaque lame radiale comme une pièce d'usure, fabriquée séparément, encastrée dans des logements du corps de l'outil, et assemblée au trépan par des moyens de fixation. Il devient alors possible de réparer le trépan par remplacement des lames usees chaque fois que les rangées de taillants (pièces d'usure), ont rempli leur office. To overcome these drawbacks, it is possible to produce each radial blade as a wearing part, manufactured separately, embedded in housings of the tool body, and assembled to the drill bit by fixing means. It then becomes possible to repair the drill bit by replacing the worn blades each time the rows of cutters (wearing parts) have fulfilled their function.

L'assemblage de lames rapportées sur le corps par soudage est une technique peu recommandée car elle engendre des contraintes et des déformations dans les pièces par suite de l'échauffement inhérent au procédé de soudure. The assembly of blades attached to the body by welding is a technique little recommended because it generates stresses and deformations in the parts as a result of the heating inherent in the welding process.

Le dispositif choisi préférentiellement élimine la soudure corme Doyen d'assemblage; il consiste a insérer des lames, en forme de plaques ou de patins, munies de taillants, dans des logements en forme de rainures, fentes ou mortaises, aménagées a l'intérieur du corps d'outil et de rendre les lames solidaires du trépan au moyen d'éléments de fixation tels que: boulons, goujons, goupilles, clavettes ou tout autre procédé mécanique d'assemblage. The device chosen preferentially eliminates the welding of the corm Dean assembly; it consists of inserting blades, in the form of plates or pads, provided with cutting edges, into housings in the form of grooves, slits or mortises, arranged inside the tool body and making the blades integral with the drill bit. by means of fastening elements such as: bolts, studs, pins, keys or any other mechanical assembly process.

Selan une variante, les lames peuvent également être fixées au trépan au -moyen de rivets emmanchés par dilatation ou contraction. According to a variant, the blades can also be fixed to the drill bit by means of rivets fitted by expansion or contraction.

L'assemblage peut également être renforcé par un collage des pièces au moyen de résines thernodurcissables.  The assembly can also be reinforced by bonding the parts using thernosetting resins.

Le démontage des lames pour reDplacement des pièces d'usure s'effectue soit par dévissage soit par usinage destructif des goujons. The disassembly of the blades for the replacement of wearing parts is carried out either by unscrewing or by destructive machining of the studs.

Le dispositif pourra être bien compris å la lecture de la description d'un mode particulier, mais non limitatif, de réalisation illustrée par la figure annexe suivante:
La figure 1 illustre, vue en perspective, le montage d'une lame rapportée sur le trépan.The device can be clearly understood on reading the description of a particular, but non-limiting, embodiment illustrated by the following appended figure:
Figure 1 illustrates, in perspective view, the mounting of a blade attached to the drill bit.

Le trépan se présente conne un corps ou support (1) dans-lequel sont usinées des rainures < 2) correspondant à la forme des lames (3), lorsque la lame est introduite dans son logement, les orifices de fixation < 4) des lames viennent se positionner en face des orifices C) du corps de trépan afin que les boulons de fixation (6 > puissent se mettre en place pour fixer les lames sur le trépan.  The drill bit is conne a body or support (1) in which are machined grooves <2) corresponding to the shape of the blades (3), when the blade is inserted in its housing, the fixing holes <4) of the blades are positioned opposite the holes C) of the bit body so that the fixing bolts (6> can be put in place to fix the blades on the bit.

Claims (1)

RRVENDICATIONSRRVENDICATIONS 1- Trépan rotatif et monobloc de forage des roches selon l'une quelconque des revendications de la demande de brevet principal 8615769 caracterisé en ce que les lames (3),sensiblement radiales, en saillies par rapport au corps de l'outil, munies de taillants en diamant polycristallin, au lieu d'être sculptées dans la masse sont fabriquées séparément pour être encastrées dans des logements en forme de, rainure (2), fentes ou mortaises du corps de l'outil (1), et assemblées au trépan par des moyens de fixation tels que, par exemple, boulons (6), goujons, goupilles, rivets, clavettes, ou tout autre procédé d'assemblage mécanique.  1- Rotary and monobloc drill bit for rock drilling according to any one of the claims of main patent application 8615769 characterized in that the blades (3), substantially radial, projecting from the body of the tool, provided with polycrystalline diamond cutters, instead of being sculpted in the mass, are manufactured separately to be embedded in housings in the form of, groove (2), slots or mortises of the body of the tool (1), and assembled with the drill fixing means such as, for example, bolts (6), studs, pins, rivets, keys, or any other mechanical assembly process.
FR888802565A 1986-11-04 1988-02-22 ROTARY MONOBLOCK DRILLING TOOL Expired - Lifetime FR2627541B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR888802565A FR2627541B2 (en) 1986-11-04 1988-02-22 ROTARY MONOBLOCK DRILLING TOOL

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8615769A FR2606069B1 (en) 1986-11-04 1986-11-04 ROTARY MONOBLOCK DRILLING TOOL
FR888802565A FR2627541B2 (en) 1986-11-04 1988-02-22 ROTARY MONOBLOCK DRILLING TOOL

Publications (2)

Publication Number Publication Date
FR2627541A2 true FR2627541A2 (en) 1989-08-25
FR2627541B2 FR2627541B2 (en) 1991-04-05

Family

ID=26225582

Family Applications (1)

Application Number Title Priority Date Filing Date
FR888802565A Expired - Lifetime FR2627541B2 (en) 1986-11-04 1988-02-22 ROTARY MONOBLOCK DRILLING TOOL

Country Status (1)

Country Link
FR (1) FR2627541B2 (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007127680A1 (en) * 2006-04-27 2007-11-08 Tdy Industries, Inc. Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods
WO2009046069A2 (en) * 2007-10-01 2009-04-09 Baker Hughes Incorporated Drill bit for subterranean drilling
US7687156B2 (en) 2005-08-18 2010-03-30 Tdy Industries, Inc. Composite cutting inserts and methods of making the same
US8007922B2 (en) 2006-10-25 2011-08-30 Tdy Industries, Inc Articles having improved resistance to thermal cracking
US8025112B2 (en) 2008-08-22 2011-09-27 Tdy Industries, Inc. Earth-boring bits and other parts including cemented carbide
US8137816B2 (en) 2007-03-16 2012-03-20 Tdy Industries, Inc. Composite articles
US8221517B2 (en) 2008-06-02 2012-07-17 TDY Industries, LLC Cemented carbide—metallic alloy composites
US8272816B2 (en) 2009-05-12 2012-09-25 TDY Industries, LLC Composite cemented carbide rotary cutting tools and rotary cutting tool blanks
US8308096B2 (en) 2009-07-14 2012-11-13 TDY Industries, LLC Reinforced roll and method of making same
US8318063B2 (en) 2005-06-27 2012-11-27 TDY Industries, LLC Injection molding fabrication method
US8322465B2 (en) 2008-08-22 2012-12-04 TDY Industries, LLC Earth-boring bit parts including hybrid cemented carbides and methods of making the same
US8790439B2 (en) 2008-06-02 2014-07-29 Kennametal Inc. Composite sintered powder metal articles
US8800848B2 (en) 2011-08-31 2014-08-12 Kennametal Inc. Methods of forming wear resistant layers on metallic surfaces
US9016406B2 (en) 2011-09-22 2015-04-28 Kennametal Inc. Cutting inserts for earth-boring bits
US9643236B2 (en) 2009-11-11 2017-05-09 Landis Solutions Llc Thread rolling die and method of making same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575239A (en) * 1950-06-13 1951-11-13 Marathon Coal Bit Company Inc Reversible bit and holder therefor
US3310126A (en) * 1963-05-28 1967-03-21 Aquitaine Petrole Rotary boring tools operating with jets of fluid
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations
US4116289A (en) * 1977-09-23 1978-09-26 Shell Oil Company Rotary bit with ridges
US4603751A (en) * 1984-02-16 1986-08-05 Kennametal Inc. Mechanically fastened center vacuum roof drill bit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2575239A (en) * 1950-06-13 1951-11-13 Marathon Coal Bit Company Inc Reversible bit and holder therefor
US3310126A (en) * 1963-05-28 1967-03-21 Aquitaine Petrole Rotary boring tools operating with jets of fluid
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations
US4116289A (en) * 1977-09-23 1978-09-26 Shell Oil Company Rotary bit with ridges
US4603751A (en) * 1984-02-16 1986-08-05 Kennametal Inc. Mechanically fastened center vacuum roof drill bit

Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8318063B2 (en) 2005-06-27 2012-11-27 TDY Industries, LLC Injection molding fabrication method
US8808591B2 (en) 2005-06-27 2014-08-19 Kennametal Inc. Coextrusion fabrication method
US8637127B2 (en) 2005-06-27 2014-01-28 Kennametal Inc. Composite article with coolant channels and tool fabrication method
US8647561B2 (en) 2005-08-18 2014-02-11 Kennametal Inc. Composite cutting inserts and methods of making the same
US7687156B2 (en) 2005-08-18 2010-03-30 Tdy Industries, Inc. Composite cutting inserts and methods of making the same
US8789625B2 (en) 2006-04-27 2014-07-29 Kennametal Inc. Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods
EP2327856A1 (en) * 2006-04-27 2011-06-01 TDY Industries, Inc. Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods
WO2007127680A1 (en) * 2006-04-27 2007-11-08 Tdy Industries, Inc. Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods
JP2009535536A (en) * 2006-04-27 2009-10-01 ティーディーワイ・インダストリーズ・インコーポレーテッド Modular fixed cutter boring bit, modular fixed cutter boring bit body and related method
US8312941B2 (en) 2006-04-27 2012-11-20 TDY Industries, LLC Modular fixed cutter earth-boring bits, modular fixed cutter earth-boring bit bodies, and related methods
US8841005B2 (en) 2006-10-25 2014-09-23 Kennametal Inc. Articles having improved resistance to thermal cracking
US8697258B2 (en) 2006-10-25 2014-04-15 Kennametal Inc. Articles having improved resistance to thermal cracking
US8007922B2 (en) 2006-10-25 2011-08-30 Tdy Industries, Inc Articles having improved resistance to thermal cracking
US8137816B2 (en) 2007-03-16 2012-03-20 Tdy Industries, Inc. Composite articles
WO2009046069A3 (en) * 2007-10-01 2009-07-02 Baker Hughes Inc Drill bit for subterranean drilling
WO2009046069A2 (en) * 2007-10-01 2009-04-09 Baker Hughes Incorporated Drill bit for subterranean drilling
US8790439B2 (en) 2008-06-02 2014-07-29 Kennametal Inc. Composite sintered powder metal articles
US8221517B2 (en) 2008-06-02 2012-07-17 TDY Industries, LLC Cemented carbide—metallic alloy composites
US8225886B2 (en) 2008-08-22 2012-07-24 TDY Industries, LLC Earth-boring bits and other parts including cemented carbide
US8322465B2 (en) 2008-08-22 2012-12-04 TDY Industries, LLC Earth-boring bit parts including hybrid cemented carbides and methods of making the same
US8459380B2 (en) 2008-08-22 2013-06-11 TDY Industries, LLC Earth-boring bits and other parts including cemented carbide
US8025112B2 (en) 2008-08-22 2011-09-27 Tdy Industries, Inc. Earth-boring bits and other parts including cemented carbide
US8858870B2 (en) 2008-08-22 2014-10-14 Kennametal Inc. Earth-boring bits and other parts including cemented carbide
US8272816B2 (en) 2009-05-12 2012-09-25 TDY Industries, LLC Composite cemented carbide rotary cutting tools and rotary cutting tool blanks
US8876443B2 (en) 2009-05-12 2014-11-04 Kennametal Inc. Composite cemented carbide rotary cutting tools and rotary cutting tool blanks
US9435010B2 (en) 2009-05-12 2016-09-06 Kennametal Inc. Composite cemented carbide rotary cutting tools and rotary cutting tool blanks
US8308096B2 (en) 2009-07-14 2012-11-13 TDY Industries, LLC Reinforced roll and method of making same
US9266171B2 (en) 2009-07-14 2016-02-23 Kennametal Inc. Grinding roll including wear resistant working surface
US9643236B2 (en) 2009-11-11 2017-05-09 Landis Solutions Llc Thread rolling die and method of making same
US8800848B2 (en) 2011-08-31 2014-08-12 Kennametal Inc. Methods of forming wear resistant layers on metallic surfaces
US9016406B2 (en) 2011-09-22 2015-04-28 Kennametal Inc. Cutting inserts for earth-boring bits

Also Published As

Publication number Publication date
FR2627541B2 (en) 1991-04-05

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