EP0349846B1 - Trépan carottier - Google Patents

Trépan carottier Download PDF

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Publication number
EP0349846B1
EP0349846B1 EP89111381A EP89111381A EP0349846B1 EP 0349846 B1 EP0349846 B1 EP 0349846B1 EP 89111381 A EP89111381 A EP 89111381A EP 89111381 A EP89111381 A EP 89111381A EP 0349846 B1 EP0349846 B1 EP 0349846B1
Authority
EP
European Patent Office
Prior art keywords
channels
carrier body
sides
cutting segments
drilling tool
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
EP89111381A
Other languages
German (de)
English (en)
Other versions
EP0349846A1 (fr
Inventor
Eugen Dr. Magyari
Walter Ritt
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
Priority to AT89111381T priority Critical patent/ATE76480T1/de
Publication of EP0349846A1 publication Critical patent/EP0349846A1/fr
Application granted granted Critical
Publication of EP0349846B1 publication Critical patent/EP0349846B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E21B10/44—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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type

Definitions

  • the invention relates to a hollow drilling tool with a tubular carrier body and at its front end arranged in the feed direction, the cutting segments projecting beyond the outer and inner contours of the carrier body.
  • Hollow drilling tools of the type mentioned, for example from DE-GM 8 515 322, are used in particular for drilling holes with a large cross section in rock, concrete, masonry and the like.
  • the cutting segments are provided with abrasive cutting particles, especially synthetic diamonds.
  • Drilling usually takes place with the simultaneous supply of a coolant.
  • the supply of the cooling liquid takes place with more or less high pressure and usually along the inside of the tubular support body, so that a drainage on the outside is ensured together with the drilling material.
  • the invention has for its object to provide a hollow drilling tool that allows good removal of the drill, even with less equipment.
  • the cutting segments are provided on their sides projecting beyond the outer and inner contours of the carrier body with a plurality of channels which run parallel to one another within the sides and which run in opposite directions to the longitudinal axis of the carrier body and serve to remove the drill material, the channels being open to the sides and to the circumferential contour delimiting these sides.
  • the coolant is additionally conveyed on the inside against the bottom of the borehole.
  • the slope of the grooves on the inside of the cutting segments runs in the opposite direction to the grooves on the outside of the segments.
  • the coolant is conveyed to the deepest of the borehole on the inside of the cutting segments and is conveyed towards the mouth of the borehole on the outside of the cutting segments.
  • the arrangement of a plurality of channels running parallel to one another ensures during the entire service life of the drilling tool that channels are available for removing the drill material from the cutting segments.
  • Good conveyance of the drilling material is advantageously achieved with channels running at an incline of 30 ° to 60 °.
  • the channels advantageously have a U-shaped cross section.
  • the U-shaped cross section of the channels can be angular or rounded.
  • the depth and width of the U-shaped The cross section of the channels preferably corresponds approximately to the dimension by which the cutting segments project beyond the outer contour of the carrier body.
  • Another advantage of the channels according to the invention is that this increases the surface of the cutting segments and thus improves the heat transfer from the cutting segments to the cooling liquid. Overheating of the cutting segments can be avoided by the improved heat supply.
  • This drawing shows a hollow drilling tool according to the invention in a perspective view.
  • the hollow drilling tool essentially consists of a carrier body 1 with a front end 1a in the feed direction and a rear end 1b.
  • the rear end 1b is designed as a reduced diameter connecting piece 1c for connection to a drilling device known per se, not shown.
  • the end region adjoining the front end 1a is formed with essentially U-shaped recesses 1d for receiving cutting segments 2.
  • the cutting segments 2 have an outwardly directed outer side 2a and an inwardly directed inner side 2b arranged opposite this.
  • the cutting segments are provided on their outer side 2a and on their inner side 2b with channels 2c, 2d which are inclined to the longitudinal axis of the carrier body 1 and open on both sides and towards the outer contour.
  • the channels 2c, 2d are arranged parallel to each other on one side.
  • the pitch angle A of the channels 2c, 2d is approximately 45 °.
  • the direction of inclination of the channels 2c, 2d is opposite on the outside 2a and on the inside 2b.
  • the channels 2c, 2d can also be arranged only in part of the cutting segments 2 or on one side of the cutting segments 2. In the latter case, it is expedient to arrange the channels 2c on the outside 2a of the cutting segments 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Surgical Instruments (AREA)
  • Dowels (AREA)

Claims (3)

1. Trépan carottier, présentant un corps porteur tubulaire (1) et des segments coupants (2) disposés à son extrémité avant (1a) dans la direction de creusement et dépassant du contour extérieur et du contour intérieur du corps porteur (1),
caractérisé en ce que les segments coupants (2) sont munis, sur leurs côtés (2a, 2b) dépassant du contour extérieur et du contour intérieur du corps porteur (1), de plusieurs canaux (2c, 2d), servant à l'évacuation du matériau creusé, qui s'étendent parallèlement entre eux à l'intérieur de chaque côté (2a, 2b) et en étant inclinés par rapport à l'axe longitudinal du corps porteur (1) dans des directions contraires sur les côtés respectifs (2a, 2b), les canaux (2c, 2d) étant ouverts des deux côtés (2a, 2b) et vers le contour extérieur délimitant ces côtés (2a, 2b ).
2. Trépan carottier selon la revendication 1, caractérisé en ce que les canaux (2c, 2d) s'étendent sous un angle d'inclinaison (A) de 30 ° à 60 °.
3. Trépan carottier selon la revendication 1 ou 2, caractérisé en ce que les canaux (2c, 2d) présentent une section en forme de U.
EP89111381A 1988-07-01 1989-06-22 Trépan carottier Expired - Lifetime EP0349846B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89111381T ATE76480T1 (de) 1988-07-01 1989-06-22 Hohlbohrwerkzeug.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3822249A DE3822249A1 (de) 1988-07-01 1988-07-01 Hohlbohrwerkzeug
DE3822249 1988-07-01

Publications (2)

Publication Number Publication Date
EP0349846A1 EP0349846A1 (fr) 1990-01-10
EP0349846B1 true EP0349846B1 (fr) 1992-05-20

Family

ID=6357726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89111381A Expired - Lifetime EP0349846B1 (fr) 1988-07-01 1989-06-22 Trépan carottier

Country Status (5)

Country Link
US (1) US4915182A (fr)
EP (1) EP0349846B1 (fr)
AT (1) ATE76480T1 (fr)
CA (1) CA1314282C (fr)
DE (2) DE3822249A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5791837A (en) * 1996-08-16 1998-08-11 Johnson; Samuel Annular tool for cutting holes in metal
US5868125A (en) * 1996-11-21 1999-02-09 Norton Company Crenelated abrasive tool
US6250403B1 (en) * 1997-09-30 2001-06-26 The Charles Machine Works, Inc. Device and method for enlarging a Bore
FR2824008A1 (fr) * 2001-04-26 2002-10-31 Michelin Soc Tech Outil d'usinage de pneumatiques
US6761514B2 (en) 2001-10-19 2004-07-13 Master Tool Corporation Hollow mill tool
US7373994B2 (en) * 2004-10-07 2008-05-20 Baker Hughes Incorporated Self cleaning coring bit
RU2443847C1 (ru) * 2010-10-11 2012-02-27 Николай Митрофанович Панин Буровая коронка
RU2460613C1 (ru) * 2011-06-28 2012-09-10 Юрий Михайлович Ермаков Кольцевое сверло
RU2473772C1 (ru) * 2011-10-27 2013-01-27 Николай Митрофанович Панин Коронка для ударно-вращательного бурения
US20130183891A1 (en) * 2011-12-30 2013-07-18 Ignazio Gosamo Grinding Ring with Dual Function Grinding Segments
CA2825729C (fr) * 2012-11-21 2018-05-22 Diamond Products, Limited Meche en diamant et ses procedes de fabrication
CN103195372B (zh) * 2013-04-24 2016-08-17 中国电建集团中南勘测设计研究院有限公司 一种螺旋式钻头及一种泡沫钻进装置和泡沫钻进工艺
KR101705194B1 (ko) * 2015-07-06 2017-02-09 주식회사 에지텍 코어드릴 제조방법 및 상기 방법으로 제조되는 코어드릴
BE1023352B1 (fr) * 2016-01-29 2017-02-13 Diarotech S.A. Couronne miniere comprenant des segments impregnes de diamant obtenus par frittage a chaud
RU174005U1 (ru) * 2016-02-16 2017-09-25 Федеральное государственное бюджетное образовательное учреждение высшего образования Балтийский государственный технический университет "ВОЕНМЕХ" им. Д.Ф. Устинова (БГТУ "ВОЕНМЕХ") Инструмент для сверления глубоких отверстий
USD951313S1 (en) 2018-07-12 2022-05-10 Halliburton Energy Services, Inc. PDC cutter
US11105158B2 (en) 2018-07-12 2021-08-31 Halliburton Energy Services, Inc. Drill bit and method using cutter with shaped channels
WO2021006912A1 (fr) * 2019-07-11 2021-01-14 Halliburton Energy Services, Inc. Dispositif de coupe de trépan
KR102719479B1 (ko) * 2024-01-09 2024-10-17 김영국 드릴 비트 및 상기 드릴 비트를 포함하는 저소음 착암기
KR102730778B1 (ko) * 2024-02-28 2024-11-14 김영국 암맥 절단형 무진동 할암 작업 공법 및 상기 암맥 절단형 무진동 할암 작업 공법에 적용되는 암맥 절단형 무진동 할암 작업용 저소음 착암기

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE23539E (en) * 1952-08-26 Drill bit
US817296A (en) * 1905-03-31 1906-04-10 William Besson Tubular rock-boring drill.
US1172139A (en) * 1913-10-02 1916-02-15 William j mitchell Swelled coupling and bit used in diamond-drilling.
US1168226A (en) * 1914-06-18 1916-01-11 Ed Rand Well-drilling apparatus.
US1846177A (en) * 1928-07-16 1932-02-23 Calvin P Bascom Coal drill
US2520876A (en) * 1949-05-13 1950-08-29 Koebel Diamond Tool Company Core bit
US2838286A (en) * 1956-04-19 1958-06-10 Christensen Diamond Prod Co Rotary drill bit
DE1083763B (de) * 1958-08-22 1960-06-23 Salzgitter Maschinen Ag Vollbohrkrone
US3153885A (en) * 1961-10-09 1964-10-27 Chauncey A R Keller Cyclindrical cutter device
US3217816A (en) * 1964-12-10 1965-11-16 Louis B Boyer Method of removing pipe
US3692127A (en) * 1971-05-10 1972-09-19 Walter R Hampe Rotary diamond core bit
DE2214021C2 (de) * 1972-03-23 1973-09-20 Ellmer, Kurt, 8580 Bayreuth Werkzeuge zum Ausbohren von Erd kernen
AT373196B (de) * 1980-11-11 1983-12-27 Swarovski Tyrolit Schleif Hohlbohrer
US4352400A (en) * 1980-12-01 1982-10-05 Christensen, Inc. Drill bit
DE3566566D1 (en) * 1984-10-11 1989-01-05 Diamant Boart Sa Stabilizer
DE3600189A1 (de) * 1986-01-16 1987-07-16 Kazachskij Politekhn I Im W I Diamantbohrkrone

Also Published As

Publication number Publication date
CA1314282C (fr) 1993-03-09
ATE76480T1 (de) 1992-06-15
DE58901461D1 (de) 1992-06-25
DE3822249A1 (de) 1990-01-04
US4915182A (en) 1990-04-10
EP0349846A1 (fr) 1990-01-10

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