EP1182324B1 - Diamantbohrkrone - Google Patents
Diamantbohrkrone Download PDFInfo
- Publication number
- EP1182324B1 EP1182324B1 EP01810780A EP01810780A EP1182324B1 EP 1182324 B1 EP1182324 B1 EP 1182324B1 EP 01810780 A EP01810780 A EP 01810780A EP 01810780 A EP01810780 A EP 01810780A EP 1182324 B1 EP1182324 B1 EP 1182324B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- carrier
- carrier body
- wall thickness
- fact
- tubular
- 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
Links
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 11
- 239000010432 diamond Substances 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000005553 drilling Methods 0.000 abstract description 19
- 238000003780 insertion Methods 0.000 abstract description 10
- 230000037431 insertion Effects 0.000 abstract description 10
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 description 10
- 238000003754 machining Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000009987 spinning Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/14—Spinning
- B21D22/16—Spinning over shaping mandrels or formers
-
- 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
- E21B10/02—Core bits
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49373—Tube joint and tube plate structure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4935—Heat exchanger or boiler making
- Y10T29/49391—Tube making or reforming
Definitions
- the invention relates to a base body for a diamond drill bit according to the preamble of claim 1
- Diamond core bits are used for making holes with a large diameter in a hard ground such as concrete, rock or the like.
- Diamond core bits consist of a base body, which at its borehole side End face is provided with at least a single diamond cutting element.
- the Grundköper itself consists of a tubular support body with a bottom and a shank end together. The soil is located at one opposite to the drilling direction pointing free end of the support body and extends substantially perpendicular to the drilling direction. The insertion end protrudes in a direction opposite to the drilling direction Direction from the ground.
- the known from DE-3603499 basic body for a diamond drill bit is made of three individual parts, a cylindrical insertion end, a tubular support body and a floor made. All three parts are connected by welding.
- the tubular carrier body is for example by a machining brought to its final shape and has a smooth surface both an inside as well as on an outside.
- a machining brought to its final shape has a smooth surface both an inside as well as on an outside.
- diamond cutting element Side can be an increased friction between the smooth surface of the tubular support body and the substrate arise, which adversely affects the quality of a hole to be produced.
- the smooth surfaces also have the disadvantage that these removed cuttings do not from a drilled annular gap in the underground can transport.
- the invention has for its object to a basic body for diamond drill bits create, which is economically producible, a low weight, a small wall thickness and has good concentricity properties.
- cleared cuttings should be removed be well transportable a drilled annular gap of a subsoil.
- the spin forming has the advantage that the entire body of a single Material exists and that for the production of the body very little Machining operations are necessary. This particularly affects the amount of Production costs of the carrier body positive.
- the carrier body has a runout of less than 1.3 mm.
- a low runout is only by the flow-forming process achievable, in which the material to be formed uniformly from the spinning rollers is displaced.
- the one piece with the tubular carrier body lends Trained bottom of the support body high radial strength, so this For example, during transport due to improper handling not deformed becomes.
- the radial extent of the free end attachable to the drilling direction side Cutting element is only slightly larger than the wall thickness of the tubular Carrier body occurs, especially with increasing wear of the cutting element, to a friction between the tubular portion of the carrier body and the underground. This friction leads to a warming of the entire body and to a greater load of the drive of the body serving Drive motor of a drill to be brought into contact with the main body.
- a profiling preferably on the inside and / or outside of the tubular portion of the support body is arranged, which can be with the ground Reduce contact surface of the carrier body coming into contact. A increased friction between the carrier body and the substrate can in this way be avoided.
- the profiling also has the advantage that this the Function of reinforcing ribs, which in addition to the strength of tubular portion of the support body positively affect.
- the main body points in the area the profiling, for example, a wall thickness, the maximum of 0.03 times Outer diameter of the carrier body corresponds.
- This big joining zone is achieved by the wall thickness of the carrier body preferably to Bohrhrungsungs remedyen, extended free end of Sukörpes out.
- This extension of the carrier body results For example, by a radial extension of the outer contour of the carrier body and extends over part of the total length of the carrier body.
- a big Joining zone can for example also be created by this Extension on the outside and the inside or only on the inside of the Carrier body extends. If the extension is on the inside, it reduces Of course, the clear width of the tubular support body on the drilling direction side free end.
- the wall thickness of the carrier body corresponds to the free borehole direction side End, for example, 0.012 to 0.014 times, outside the extended range measured outside diameter of the carrier body.
- this extension extends advantageously over a length corresponding to 0.04 to 0.14 times the total length of the carrier body.
- the carrier body In order to give the support body a particularly high stability, is the bottom the carrier body preferably bell-shaped.
- the main body is For example, formed from a metal, which is good with the help of the flow-forming deform.
- Fig. 1 shows a turned, cast or formed by machining blank with a raw insertion end 1 and a raw body 2.
- the Blank is free of play with a, from a main spindle of a flow-forming device, not shown recorded, spin-mandrel 3 brought into connection.
- This in Fig. 2 for example, has a cylindrical outer contour and presses against the direction of drilling against a facing in the direction of drilling end face of the unprocessed basic body 2.
- counter-holding force is the insertion in fixed in the axial direction and by a main drive of the flow-forming device in rotary motion added.
- Corresponding symbols that indicate a rotational movement are the Fig. 3 removable.
- Two pressure rollers 5, 6 of the flow-forming device have a Drilling direction tapered outer contour. During the flow-forming process, a Displacement of the rotating pressure rollers 5, 6 in the drilling direction. They grab the, along guided two unillustrated axes, pressure rollers 5, 6 locally on the circumference of the unprocessed carrier body 3 a. This is revealed in Fig. 3.
- the material of the support body 2 is plastic deformed and partially displaced in the drilling direction along the spinning mandrel 3, so that the carrier body 3 receives its tubular shape.
- the defined movement of the spinning rollers 5, 6 causes the carrier body 2 forming portion of the blank on the Required wall thickness is reduced and brought to the desired length.
- the wall thickness of the carrier body 2 increases to the drilling direction-side free end of the Carrier body 2 towards, so that at least one not shown diamane cutting element can be set well on the carrier body 2.
- the extension 8 of the carrier body 2 results from a radial extension of the outer contour of the support body 2 and extends over a length measured parallel to the drilling direction, that of the 0.04- to 0.14 times the total length of the support body 2 corresponds.
- the wall thickness of the carrier body 2 at the drilling direction-side free end is 1.5 mm to 3.5 mm. Of the Bottom of the carrier body 2 may be bell-shaped.
- the insertion end 1, a longitudinal groove 7 at the insertion end 1 and the drilling direction side free end of the support body 2 are, as shown in FIG. 4, with the help of machined tools 9, 10 post-processed.
- Fig. 5 shows a base body with a tubular support body 12, which integrally with an insertion end 11 is connected.
- the insertion end 11 has a closed Longitudinal groove 17.
- the outside and the inside are with one example provided trapezoidal thread profiling.
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Carbon And Carbon Compounds (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
- Fig.1
- ein Rohteil aus dem der erfindungsgemässe Grundkörper fertigbar ist;
- Fig. 2
- das Rohteil gemäss Fig. 1 in Verbindung mit einem Drückwalzdorn;
- Fig. 3
- Herstellung des rohrförmigen Trägerkörpers aus einem Teil des Rohteiles gemäss Fig. 1 mit Hilfe mehrere Drückwalzen;
- Fig. 4
- spannabhebende Bearbeitung des Einsteckendes und des bohrrichtungsseitigen freien Endes des Trägerkörpers;
- Fig. 5
- ein weiterer erfindungsgemässer Grundkörper, dessen Trägerkörper an einer Innen- und Aussenseite mit einer Profilierung versehen ist.
Claims (7)
- Grundkörper für eine Diamantbohrkrone mit einem, einen Boden (4) aufweisenden, rohrförmigen Trägerkörper (2, 12) und einem vom Boden (4) abragenden Einsteckende (1, 11), dadurch gekennzeichnet, dass der Trägerkörper (2, 12) und der Boden (4) im Drückwalzverfahren hergestellt sind.
- Grundkörper nach Anspruch 1, dadurch gekennzeichnet, dass der Trägerkörper (2, 12) eine Wandstärke aufweist, die dem 0,008- bis 0,016-fachen Aussendurchmesser des Trägerkörpers (2, 12) entspricht.
- Grundkörper nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Trägerkörper (2, 12) eine Rundlaufabweichung von weniger als 1,3 mm aufweist.
- Grundkörper nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Trägerkörper (12) an der Aussenseite und/oder Innenseite mit einer Profilierung (13, 14) versehen ist.
- Grundkörper nach Anspruch 4, dadurch gekennzeichnet, dass die Profilierung (13, 14) spiralförmig ausgebildet ist.
- Grundkörper nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass sich die Wandstärke des Trägerkörpers (2, 12) zum bohrrichtungsseitigen, freien Ende des Trägerkörpes (2, 12) hin erweitert.
- Grundkörper nach Anspruch 6, dadurch gekennzeichnet, dass sich die Erweiterung der Wandstärke über eine Länge erstreckt, die der 0,04- bis 0,14-fachen Gesamtlänge des Trägerkörpers (2, 12) entspricht.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10041911A DE10041911B4 (de) | 2000-08-25 | 2000-08-25 | Diamantbohrkrone |
DE10041911 | 2000-08-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1182324A2 EP1182324A2 (de) | 2002-02-27 |
EP1182324A3 EP1182324A3 (de) | 2002-04-03 |
EP1182324B1 true EP1182324B1 (de) | 2005-05-11 |
Family
ID=7653838
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01810780A Expired - Lifetime EP1182324B1 (de) | 2000-08-25 | 2001-08-13 | Diamantbohrkrone |
Country Status (6)
Country | Link |
---|---|
US (1) | US6572447B2 (de) |
EP (1) | EP1182324B1 (de) |
JP (1) | JP5107491B2 (de) |
AT (1) | ATE295469T1 (de) |
DE (2) | DE10041911B4 (de) |
DK (1) | DK1182324T3 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104675330A (zh) * | 2013-11-27 | 2015-06-03 | 中国石油化工股份有限公司 | 一种干法取芯钻头 |
US10662716B2 (en) * | 2017-10-06 | 2020-05-26 | Kennametal Inc. | Thin-walled earth boring tools and methods of making the same |
US11998987B2 (en) | 2017-12-05 | 2024-06-04 | Kennametal Inc. | Additive manufacturing techniques and applications thereof |
DE112020001416T5 (de) | 2019-03-25 | 2021-12-09 | Kennametal Inc. | Additive fertigungstechniken und deren anwendungen |
DE102023121703B3 (de) | 2023-08-14 | 2024-07-25 | Thyssenkrupp Steel Europe Ag | Verfahren zur Herstellung einer Bohrkrone |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3692127A (en) * | 1971-05-10 | 1972-09-19 | Walter R Hampe | Rotary diamond core bit |
JPS537145B2 (de) * | 1974-01-18 | 1978-03-15 | ||
DE2807198A1 (de) * | 1978-02-20 | 1979-08-30 | Heller Verwaltungsges | Verfahren zum herstellen einer bohrkrone und nach dem verfahren hergestellte bohrkrone |
US4328647A (en) * | 1980-04-09 | 1982-05-11 | Brammall, Inc. | Inside, outside honing tool |
DE3603499A1 (de) * | 1985-05-07 | 1986-11-13 | Geißler & Kuper GmbH Diamantwerkzeug - Wiederaufbereitung, 3100 Celle | Diamantbohrkrone mit schaftrohr und rohrgewindeanschluss |
DE3744095A1 (de) * | 1987-12-24 | 1989-07-13 | Josef Dipl In Ehrenschwendtner | Verfahren zur herstellung von zylinderlaufbuechsen |
JPH0746496Y2 (ja) * | 1988-03-03 | 1995-10-25 | 有限会社吉野精機 | 小孔穿孔用回転ドリル |
DE8805449U1 (de) * | 1988-04-25 | 1988-06-09 | Maier, Wolfgang, 5630 Remscheid | Diamant-Kernbohrer |
JP2515111Y2 (ja) * | 1990-09-01 | 1996-10-30 | ノリタケダイヤ株式会社 | ダイヤモンドドリル |
KR100277320B1 (ko) * | 1992-06-03 | 2001-01-15 | 가나이 쓰도무 | 온라인 롤 연삭 장치를 구비한 압연기와 압연 방법 및 회전 숫돌 |
US5910041A (en) * | 1997-03-06 | 1999-06-08 | Keltech Engineering | Lapping apparatus and process with raised edge on platen |
US6108856A (en) * | 1997-10-09 | 2000-08-29 | The Malish Corporation | Molded pad driver |
JPH11169985A (ja) * | 1997-12-04 | 1999-06-29 | Mazda Motor Corp | 歯付円筒部品の成形方法 |
-
2000
- 2000-08-25 DE DE10041911A patent/DE10041911B4/de not_active Expired - Lifetime
-
2001
- 2001-08-13 EP EP01810780A patent/EP1182324B1/de not_active Expired - Lifetime
- 2001-08-13 DE DE50106178T patent/DE50106178D1/de not_active Expired - Fee Related
- 2001-08-13 AT AT01810780T patent/ATE295469T1/de active
- 2001-08-13 DK DK01810780T patent/DK1182324T3/da active
- 2001-08-21 US US09/933,969 patent/US6572447B2/en not_active Expired - Lifetime
- 2001-08-22 JP JP2001251002A patent/JP5107491B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1182324A3 (de) | 2002-04-03 |
EP1182324A2 (de) | 2002-02-27 |
ATE295469T1 (de) | 2005-05-15 |
US6572447B2 (en) | 2003-06-03 |
DE10041911B4 (de) | 2009-02-05 |
JP2002096133A (ja) | 2002-04-02 |
JP5107491B2 (ja) | 2012-12-26 |
DE10041911A1 (de) | 2002-03-07 |
DK1182324T3 (da) | 2005-09-12 |
DE50106178D1 (de) | 2005-06-16 |
US20020023635A1 (en) | 2002-02-28 |
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