EP1564365A2 - Trépan de forage - Google Patents

Trépan de forage Download PDF

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Publication number
EP1564365A2
EP1564365A2 EP05010556A EP05010556A EP1564365A2 EP 1564365 A2 EP1564365 A2 EP 1564365A2 EP 05010556 A EP05010556 A EP 05010556A EP 05010556 A EP05010556 A EP 05010556A EP 1564365 A2 EP1564365 A2 EP 1564365A2
Authority
EP
European Patent Office
Prior art keywords
drill bit
face
channel
channels
drill
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.)
Withdrawn
Application number
EP05010556A
Other languages
German (de)
English (en)
Other versions
EP1564365A3 (fr
Inventor
Herbert Papousek
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.)
Atlas Copco Mai GmbH
Original Assignee
Atlas Copco Mai GmbH
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 Atlas Copco Mai GmbH filed Critical Atlas Copco Mai GmbH
Publication of EP1564365A2 publication Critical patent/EP1564365A2/fr
Publication of EP1564365A3 publication Critical patent/EP1564365A3/fr
Withdrawn legal-status Critical Current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
    • E21B10/58—Chisel-type inserts
    • 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
    • E21B10/36—Percussion drill bits
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Definitions

  • the invention relates to a drill bit with the features of the introductory part of Claim 1.
  • Drill bits in particular impact or rotary impact drill bits, attached to their End face Cutting for loosening and / or crushing the material to be degraded have, are and will be known in various embodiments For example, at the front end of self-drilling Injetationsbohrankem used to secure rock against rocky pressures.
  • Drill bits in particular impact or rotary impact drill bits, on their end face Cutting for loosening and / or crushing the material to be degraded wear, have at least one channel which in the end face and / or in the Side surface of the drill bit opens. This channel enters during drilling Rinsing medium (e.g., water or air) that removes the drill bit while drilling cools and cuttings rinsed out of the hole. After the hole the reaches the desired depth, the channel-setting mass (e.g., mortar or concrete), which after setting the Injektorbohranker in the borehole sets.
  • Rinsing medium e.g., water or air
  • the channel-setting mass e.g., mortar or concrete
  • a drill bit of the type mentioned is known from GB 633 999 A.
  • the known drill bit has a channel for the flushing medium and at their Cutting face.
  • the mouth of the channel for flushing medium lies in one Embodiment in a recess in the side surface of the drill bit and is too this depression arranged symmetrically.
  • a similar embodiment of Flushing channels are the drill bit of the GB 981 489 A and the drill bit of the AU 450 556, wherein the known from AU 450 556 drill bit on its side surface not in recesses arranged mouths of channels for flushing medium has.
  • the drill head of FR 1 411 867 A has a dividing flushing channel whose Mouths in recesses on the side surface of the drill head, to the Wells are symmetrical, arranged.
  • the invention is based on the object, drill bits of the aforementioned Further develop genus in such a way that there is no danger that the channel during Drilling by cuttings is misplaced (clogged).
  • the drill bit according to the invention in particular for use in Injection anchors is thought to be at least one mouth of at least a channel through which first flushing medium and then hardening mass, e.g. hardening (cement) mortar, is squeezed to the injection drill anchor in the Drill hole set in an area of the drill bit, which is opposite to the circumference of the drill bit Core bit is set back.
  • the mouth is in the recessed Region is arranged off-center such that the mouth to the - based on the direction of rotation of the drill bit - front edge of the recessed area is arranged offset.
  • the mouth of the drill bit according to the invention has referred to the direction of rotation to the rear. This will prevent the channel when using the drill bit for drilling with cuttings can enforce. This will be ensures that the passage through the at least one channel in the drill bit at Rinsing during the drilling process and during pressing of setting compound certainly not hindered.
  • the drill bit 1 has at its Face three with the same radius of curvature and curved in the same direction Cutting 2, the cutting edges 3 extend to the center of the end face and the at a distance from the center, i. the axis 4 of the drill bit 1 ends.
  • a blind hole 5 is provided, that of the end face opposite end of the drill bit 1 goes out and carries an internal thread.
  • the drill bit 1 on an externally threaded anchor rod, as they for injection drill anchors are screwed.
  • three channels 10, the axis 4 of the Drill bit 1 at an acute angle, for example an angle of 30 °, are inclined (see Fig. 4).
  • the channels 10 are aligned in the drill bit 1 so that their mouths 11 on the side surface of the drill bit 1 each in the area between two adjacent cutting 2 open.
  • the mouths 11 of the channels 10 are, as for example, Figs. 1 to 3 and in particular the sectional view of Fig. 4 show, in the area concave curved surface portions 12 which are defined by the cutting edges 3 Level, so substantially to the end face of the drill bit 1 approximately normal stand.
  • the outer surface 13 of the drill bit 1 as extending to the end face cone (truncated cone), for example has an opening angle of 10 °, is formed are the Mouths 11 of the channels 10 arranged so that the channels 10 during drilling can not clog with cuttings.
  • This is in contrast to the embodiment known drill bits (see, for example, AT 001 513 U1), in which the channels in the area the end face of a drill bit open.
  • the mouths 11 of the channels 10 to the concave curved surface portions 12 off-center (see Fig. 3) arranged.
  • the Mouths 11 of the channels 10 are in the direction of rotation of the drill bit 1 (in the Fig. 1 to 5, the drill bit 1 is designed for a clockwise rotation) front lying portion of the concave surface portions 12, so to speak in the shade the edges between the lateral surface 13 of the drill bit 1 and the concave Area sections 12.
  • the entry of cuttings into the channels 10 is still better prevented than centrally arranged in concave surface sections Mouths of channels.
  • channels 10 Between the channels 10 more channels 10 'are provided, which in the Outer surface 13 of the drill bit 1 between the concave curved Open surface portions 12, as shown for example in FIGS. 2 and 3 is recognizable.
  • the channels 10 ' open in a concave retracted portion of Outside surface 13 of the drill bit 1 off.
  • the channels 10 of the drill bit 1 shown in Figs. 1 to 5 are based on the Axis of the drill bit 1 to the front end (end face) of the drill bit 1 pointing sloping.
  • the channels 10 ' are to the axis of the drill bit 1 to her rear end from which the blind hole 5 goes out obliquely, ie from the end face of the drill bit 1 inclined away.
  • the mouths 11 'of the channels 10' lie in a tapered portion 13 'of the outer surface 13 of the drill bit. 1
  • this orientation of the channels 10 ' is the entry of cuttings in the Channels 10 'prevented.
  • this orientation has the advantage that the Rinsing medium without sharp deflection of its flow from the channels 10 'in the Borehole can enter.
  • FIGS. 1 to 5 a drill bit 1 with channels 10 and 10 'is shown, can a drill bit 1 according to the invention also exclusively with as in this figure shown channels 10 or exclusively with channels 10 'be equipped.
  • the Cutting 2 is formed by cemented carbide inserts inserted in the drill bit 1, e.g. by Shrink, fastened.
  • the blades 2 of the drill bit 1 according to the invention are curved so that the convex sides of the cutting edges 2 and the cutting edges 3 with respect to the Turn direction forward.
  • the drill bit 1 has two with respect to the direction of rotation oppositely curved cutting edges, with one also from the center of the End face of the drill bit 1 outgoing straight cutting edge are combined.
  • the straight cutting edge lies with respect to the axis of Drill bit 1 the area of the end face of the drill bit 1 opposite, in which the oppositely curved blades 2 are arranged.
  • a straight edge with two is in the same direction combined curved cutting.
  • drill bit 1 according to the invention with three cutting edges are also embodiments with more than three cutting edges, for example four Cutting, possible.
  • two straight, relative to each other with respect to the axis of the drill head 1 opposite Cutting with two, based on the direction of rotation, curved in the same direction Cutting, which also opposite each other with respect to the axis 4 are arranged, combined.
  • the drill bits 1 are exclusively on the end face curved cutting edges, namely four cutting edges, all provided in the Substantially from the center of the end face of the drill bit 1, i. from the axis go out the same.
  • the cutting edges are the Cutting alternately curved in opposite directions, so that two each with respect to the axis of the drill bit 1 opposite Add cutting to a flat S
  • blades are provided, all in the same direction are curved, the curvature of the cutting is chosen so that, based on the direction of rotation, either their convex or their concave Side facing forward.
  • drill bits 1 of the invention are three provided curved cutting edges, which are arranged and aligned so that two of the three cutting edges complement each other in a continuous arc and the third curved cutting edge on the convex side of the two other cutting edges, which are arranged in a continuous arc, is arranged.
  • the drill bit 1 has two at its end face oppositely curved cutting edges and two in a common axial plane the drill bit 1 lying, straight cutting.
  • the drill bit 1 has a straight cutting edge, which extends to the middle (axis) of the drill bit 1, and two only in the outer Area of the drill bit 1 arranged, oppositely curved cutting, the not diametrically opposed to each other, but in the straight edge opposite half of the end face of the drill bit 1 are arranged.
  • the curved blades 2 can be up to one in the end face of the drill bit. 1 arranged and concentric with the axis of the drill bit, for example circular depression 20 rich.
  • two are each other diametrically opposed, straight cutting, in an axial plane of the Drill bit 1 lie, and two diametrically opposed, in opposite directions curved cutting edges from the outer edge of the end face of the drill bit 1 up to a central depression rich, provided.
  • Drill bit In summary, a preferred embodiment of the invention Drill bit can be described as follows:
  • a drill bit 1 has exclusively curved blades 2 on its end face or a combination of at least one straight cutting edge with at least two curved cutting edges 2.
  • the cutting edges 2 on the end face of the drill bit 1 are arranged so that they emanate from the axis of the drill bit 1 or this immediately end next.
  • channels 10 From a for securing the drill bit 1 to a Anchor rod of a injection drill anchor serving blind hole 5 go out channels 10, whose mouths 11 are not arranged in the region of the end face of the drill bit 1 but in the area of the lateral outer surface 13 of the same, which are to the Cutting 2 towards conically widened.
  • mouths 11 of channels 10 in Area of concave surface portions 12 of the lateral surface 13 of the drill bit. 1 arranged so that they are opposite the circumference of the end face of the drill bit. 1 are set back.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP05010556A 2001-05-17 2002-05-16 Trépan de forage Withdrawn EP1564365A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT7892001 2001-05-17
AT7892001 2001-05-17
EP02769438A EP1387923B1 (fr) 2001-05-17 2002-05-16 Couronne de sondage

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP02769438A Division EP1387923B1 (fr) 2001-05-17 2002-05-16 Couronne de sondage

Publications (2)

Publication Number Publication Date
EP1564365A2 true EP1564365A2 (fr) 2005-08-17
EP1564365A3 EP1564365A3 (fr) 2007-05-02

Family

ID=3680959

Family Applications (2)

Application Number Title Priority Date Filing Date
EP02769438A Expired - Lifetime EP1387923B1 (fr) 2001-05-17 2002-05-16 Couronne de sondage
EP05010556A Withdrawn EP1564365A3 (fr) 2001-05-17 2002-05-16 Trépan de forage

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP02769438A Expired - Lifetime EP1387923B1 (fr) 2001-05-17 2002-05-16 Couronne de sondage

Country Status (12)

Country Link
US (2) US7070010B2 (fr)
EP (2) EP1387923B1 (fr)
JP (1) JP3961959B2 (fr)
CN (2) CN1982646A (fr)
CA (1) CA2447223C (fr)
CZ (1) CZ20033075A3 (fr)
DE (1) DE50207010D1 (fr)
DK (1) DK1387923T3 (fr)
ES (1) ES2263815T3 (fr)
PL (1) PL197413B1 (fr)
PT (1) PT1387923E (fr)
WO (1) WO2002092957A2 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8215206B2 (en) * 2003-04-25 2012-07-10 Combined Products Co. #1 Inc. Damaged bolt and screw removing devices
US8276482B2 (en) 2003-04-25 2012-10-02 Combined Products Co. #1 Inc. Damaged bolt and screw removing devices
US20060101949A1 (en) * 2003-04-25 2006-05-18 Burton Kozak Damaged bolt and screw removing devices
US9408592B2 (en) 2003-12-23 2016-08-09 Senorx, Inc. Biopsy device with aperture orientation and improved tip
US8360990B2 (en) 2004-12-16 2013-01-29 Senorx, Inc. Biopsy device with aperture orientation and improved tip
JP4809711B2 (ja) * 2006-03-22 2011-11-09 日本プロジェクト株式会社 ドリル
US7905164B2 (en) * 2008-09-18 2011-03-15 Combined Products Co. #1 Inc. Adjustable one way screw remover
US7861807B2 (en) * 2008-12-03 2011-01-04 Black & Decker Inc. Drill bit including one piece cutting head
FR3004746B1 (fr) * 2013-04-19 2015-05-15 Diager Plaquette de coupe
FI126596B (fi) * 2014-01-20 2017-02-28 Lehti Group Oy Teräkruunu
US9572631B2 (en) * 2014-03-05 2017-02-21 Form And Function Dental Services, P.C. Asymmetrical dental tool with cooling channels
EP3421163A1 (fr) * 2017-06-27 2019-01-02 HILTI Aktiengesellschaft Foret pour le travail de roche par impact
CN108868618B (zh) * 2018-08-03 2023-12-12 洛阳中岩工程材料有限公司 便于高效生产的铸造锚固钻头
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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189021A (en) 1921-11-21 1922-11-23 Arthur Lee Hawkesworth Drills
GB633999A (en) 1947-03-22 1949-12-30 Atlas Diesel Ab Improvements in drill bits for hammer drills having hard metal cutting edges
GB981489A (en) 1962-10-19 1965-01-27 Tungsten Carbide Developments Improvements in or relating to rock bits
FR1411867A (fr) 1963-08-19 1965-09-24 P & V Mining & Engineering Ltd Procédé et appareil pour augmenter l'action du liquide de nettoyage dans les outils servant à perforer les roches
AU450556B2 (en) 1973-01-09 1974-07-11 "improvements in rock drill bits"
US4185708A (en) 1976-08-31 1980-01-29 Akademia Gorniczo-Hunicza im, Stanislawa Staszica Bit for drilling holes in rocks
WO1997019247A1 (fr) 1995-11-23 1997-05-29 Techmo Entwicklungs- Und Vertriebs Gmbh Couronne de fleuret

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE918741C (de) 1949-09-03 1954-10-04 Boehler & Co Ag Geb Gesteinsbohrer mit Einfach- oder Mehrfachschneiden
DE927022C (de) * 1953-11-17 1955-04-28 Gustav Etschel Bohrmeissel fuer stossendes Tiefbohren
US3997279A (en) * 1975-01-20 1976-12-14 Parker Manufacturing Co. Drill bit
US5810517A (en) * 1993-06-28 1998-09-22 Monroe Cutting Tool Inc. Rotary milling cutters
US5452971A (en) * 1994-03-08 1995-09-26 Nevills; Alva D. Rotary end cutting tool

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189021A (en) 1921-11-21 1922-11-23 Arthur Lee Hawkesworth Drills
GB633999A (en) 1947-03-22 1949-12-30 Atlas Diesel Ab Improvements in drill bits for hammer drills having hard metal cutting edges
GB981489A (en) 1962-10-19 1965-01-27 Tungsten Carbide Developments Improvements in or relating to rock bits
FR1411867A (fr) 1963-08-19 1965-09-24 P & V Mining & Engineering Ltd Procédé et appareil pour augmenter l'action du liquide de nettoyage dans les outils servant à perforer les roches
AU450556B2 (en) 1973-01-09 1974-07-11 "improvements in rock drill bits"
US4185708A (en) 1976-08-31 1980-01-29 Akademia Gorniczo-Hunicza im, Stanislawa Staszica Bit for drilling holes in rocks
WO1997019247A1 (fr) 1995-11-23 1997-05-29 Techmo Entwicklungs- Und Vertriebs Gmbh Couronne de fleuret
AT1513U1 (de) 1995-11-23 1997-06-25 Techmo Entw & Vertriebs Gmbh Bohrkrone

Also Published As

Publication number Publication date
PT1387923E (pt) 2006-09-29
JP2004529280A (ja) 2004-09-24
WO2002092957A3 (fr) 2003-04-17
CZ20033075A3 (en) 2004-03-17
WO2002092957A2 (fr) 2002-11-21
CN1608166A (zh) 2005-04-20
CA2447223A1 (fr) 2002-11-21
PL197413B1 (pl) 2008-03-31
CA2447223C (fr) 2008-04-01
DK1387923T3 (da) 2006-09-18
DE50207010D1 (de) 2006-07-06
US7070010B2 (en) 2006-07-04
US7231992B2 (en) 2007-06-19
EP1387923A2 (fr) 2004-02-11
US20040134688A1 (en) 2004-07-15
JP3961959B2 (ja) 2007-08-22
CN1982646A (zh) 2007-06-20
EP1387923B1 (fr) 2006-05-31
US20060032676A1 (en) 2006-02-16
ES2263815T3 (es) 2006-12-16
PL366519A1 (en) 2005-02-07
EP1564365A3 (fr) 2007-05-02

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