EP0937860A1 - Bohr- und/oder Meisselwerkzeug - Google Patents
Bohr- und/oder Meisselwerkzeug Download PDFInfo
- Publication number
- EP0937860A1 EP0937860A1 EP98811179A EP98811179A EP0937860A1 EP 0937860 A1 EP0937860 A1 EP 0937860A1 EP 98811179 A EP98811179 A EP 98811179A EP 98811179 A EP98811179 A EP 98811179A EP 0937860 A1 EP0937860 A1 EP 0937860A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- grooves
- head
- discharge
- tool according
- 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.)
- Granted
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000005553 drilling Methods 0.000 claims description 12
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 230000035899 viability Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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
- E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
- E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
-
- 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
- E21B10/40—Percussion drill bits with leading portion
-
- 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
Definitions
- the invention relates to a drilling and / or chisel tool with one of the receptacles Drive units adapted plug-in end to which a shaft is attached in the drilling direction adjoins at least one helical discharge groove open to the circumference, wherein a drill head with a diameter substantially corresponding to the shaft is adjacent, the one or in recesses that are open to the free end has several carbide inserts, starting from one centering part in three Radial directions with at least to the circumference of the head Cutting areas are provided and between the cutting areas of the head three Has circumferentially open head grooves that are connected to the discharge grooves.
- the tools of the type mentioned are mainly used to edit Rock, concrete and masonry.
- these are with an insertion end provided which of the relevant recording of the application find Drive unit is adapted.
- drive devices for example Hammer drills, combination hammers and chisel hammers.
- a shank at the insertion end of the tool which has at least one helical discharge groove open to the circumference.
- This helical discharge groove is used to transport the cuttings that come from the drill head, which is arranged adjacent to the shaft is dismantled.
- the drill head with one or more carbide inserts, which have the free end protrude slightly from the drill head and are arranged in recesses which are open towards the free end of the drill head.
- the arrangement of hard metal in the manner of a star has proven particularly useful Arrangement of cutting areas, according to which of a centrally arranged Centering part in three directions at essentially the same angle Carbide inserts run radially up to at least the circumference of the head.
- This kind the arrangement of hard metal inserts leads to advantages in the drilling capacity in the Accuracy of the bore to be produced and in the quiet and therefore low-vibration Operating mode.
- the invention is therefore based on the object of a drilling and / or chiseling tool with the advantageous arrangement of hard metal inserts mentioned above to further develop that it can also be done using easily controllable forming processes can be produced economically.
- the object is achieved in that the drilling and / or chiseling tool has at most two discharge grooves.
- a preferred one, which is particularly advantageous with regard to the removal of the cuttings effective embodiment is that one of the two discharge grooves with two Head grooves is connected.
- This embodiment not only has advantages from the perspective of FIG Manufacture and use, but it also leads to an extraordinary appearance attractive design of the head. This argument is also for the economic Success of the tool according to the invention is important because an operator already From the visual impression, the tool is assessed as stable and efficient and trust him accordingly.
- At least one of the Head grooves is connected to both discharge grooves. This condition is easy to meet, by providing the head groove in question with a length such that both of them Discharge grooves cuts.
- the removal grooves can be formed with a view to an easily controllable forming uniformly distributed deformation forces, for example with discharge grooves, have the same cross-sectional areas.
- the removal grooves can have different cross-sectional areas. This opens up the possibility, for example, that discharge groove, which is connected to two head grooves, somewhat in the cross-sectional area to be made larger so that the drilling cuttings resulting from two head grooves are unimpeded can be transported.
- the three head grooves have essentially the same cross-sectional areas.
- the head is provided with cutouts which are open towards the free end, in which one or more hard metal inserts are arranged.
- These recesses can be designed in different ways, but preferably penetrate the drilling direction Face of the head over its entire diameter. So they can Recesses run in a star shape in the form of a slot.
- a one-piece carbide insert as a star can form the recess be shaped. For example, four are available when using multiple carbide inserts Parts, namely their three with radially star-shaped cutting areas and a centering part arranged in the middle.
- the tool shown in FIGS. 1 and 2 is designed, for example, as a drilling tool and has an insertion end 1, a shaft 2 and a head 3.
- the insertion end 1 is on a not shown drawing of a drive device adapted and thus has means for connection to this recording.
- This Means consist of axially closed locking grooves 4 and one side axially open driving grooves 5.
- the shaft 2 is provided with two discharge grooves 6, 7. Both discharge grooves 6,7 are Open to the extent and have the same cross-sectional areas in the present example.
- the head 3 is provided with cutouts 8 which are open towards the free end.
- Recesses 8 are - as also shown in FIG. 2 - a one-piece in the present example Tungsten carbide insert 9 arranged, which, starting from a centering part 9b in three Cutting areas 9a extending radially up to the circumference of the head 8 having.
- three head grooves 10, 11, 12 are provided which run parallel to the main axis and to the circumference of the head 3 are open.
- These head grooves 10,11,12 are with the Removal grooves 6, 7 connected.
- the head grooves 10, 12 are with the Discharge groove 6 and the top groove 11 connected to the discharge groove 7.
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)
Abstract
Description
- Fig. 1
- das erfindungsgemässe Werkzeug in Seitenansicht;
- Fig. 2
- das Werkzeug der Fig. 1 in einer Draufsicht auf den Bohrkopf.
Claims (7)
- Bohr- und/oder Meisselwerkzeug mit einem der Aufnahme von Antriebsgeräten angepassten Einsteckende (1), an das sich in Bohrrichtung ein Schaft (2) mit wenigstens einer zum Umfang hin offenen, wendelförmigen Abfuhrnut (6,7) anschliesst, wobei dem Schaft (2) ein Bohrkopf (3) mit im wesentlichen dem Schaft (2) entsprechenden Durchmesser benachbart ist, der in Aussparungen (8) die zum freien Ende hin offen sind, einen oder mehrere Hartmetalleinsätze (9) aufweist, die ausgehend von einem Zentrierteil (9b) in drei Richtungen radial bis zumindest zum Umfang des Kopfes (3) verlaufend mit Schneidbereichen (9a) versehen sind und zwischen den Schneidbreichen (9a) der Kopf (3) drei zum Umfang hin offene Kopfnuten (10,11,12) aufweist, die mit den Abfuhrnuten (6,7) in Verbindung stehen, dadurch gekennzeichnet, dass höchstens zwei Abfuhrnuten (6,7) vorgesehen sind.
- Werkzeug nach Anspruch 1, dadurch gekennzeichnet, dass zwei Abfuhrnuten (6,7) vorgesehen sind.
- Werkzeug nach Anspruch 2, dadurch gekennzeichnet, dass eine der zwei Abfuhrnuten (6) mit zwei Kopfnuten (10,12) verbunden ist.
- Werkzeug nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass zumindest eine der Kopfnuten (10,11,12) mit beiden Abfuhrnuten (6,7,) verbunden ist.
- Werkzeug nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Abfuhrnuten (6,7) gleiche Querschnittsflächen aufweisen.
- Werkzeug nach einem der Ansprüche 2 bis 4, dadurch gekennzeichnet, dass die Abfuhrnuten (6,7) unterschiedliche Querschnittsflächen aufweisen.
- Werkzeug nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die drei Kopfnuten (10,11,12) im wesentlichen gleiche Querschnittsflächen aufweisen.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19807394A DE19807394A1 (de) | 1998-02-21 | 1998-02-21 | Bohr- und/oder Meisselwerkzeug |
DE19807394 | 1998-02-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0937860A1 true EP0937860A1 (de) | 1999-08-25 |
EP0937860B1 EP0937860B1 (de) | 2001-11-21 |
Family
ID=7858546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98811179A Expired - Lifetime EP0937860B1 (de) | 1998-02-21 | 1998-11-27 | Bohr- und/oder Meisselwerkzeug |
Country Status (6)
Country | Link |
---|---|
US (1) | US6116361A (de) |
EP (1) | EP0937860B1 (de) |
JP (1) | JP4361983B2 (de) |
CN (2) | CN1313255C (de) |
DE (2) | DE19807394A1 (de) |
DK (1) | DK0937860T3 (de) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19942985A1 (de) * | 1999-09-09 | 2001-03-15 | Hilti Ag | Bohrwerkzeug |
DE19942986A1 (de) * | 1999-09-09 | 2001-03-15 | Hilti Ag | Bohrwerkzeug |
DE19942987A1 (de) * | 1999-09-09 | 2001-03-15 | Hilti Ag | Bohrwerkzeug |
US6374931B1 (en) | 1999-11-03 | 2002-04-23 | Relton Corporation | Multiple cutter rotary hammer bit |
DE10006936A1 (de) * | 2000-02-16 | 2001-08-23 | Hilti Ag | Bohrwerkzeug für Gestein |
DE10053344A1 (de) * | 2000-10-27 | 2002-05-08 | Hilti Ag | Gesteinsbohrer |
DE10122299C2 (de) * | 2001-05-08 | 2003-11-13 | Tracto Technik | Verfahren zum Felsbohren |
GB2393681A (en) * | 2002-10-03 | 2004-04-07 | Black & Decker Inc | Masonry drilling tool |
JP4500748B2 (ja) * | 2005-09-02 | 2010-07-14 | 住友電工ハードメタル株式会社 | スローアウェイ式工具 |
US7861807B2 (en) * | 2008-12-03 | 2011-01-04 | Black & Decker Inc. | Drill bit including one piece cutting head |
DE102010013723A1 (de) | 2010-03-31 | 2011-10-06 | Gdf Suez | Verfahren zum Betrieb einer Horizontalbohrvorrichtung und Horizontalbohrvorrichtung |
JP2015507011A (ja) * | 2012-02-14 | 2015-03-05 | ザ プロクター アンド ギャンブルカンパニー | 皮膚共生プレバイオティック剤及びそれを含有する組成物の局所使用 |
CN103358404B (zh) * | 2012-03-28 | 2017-03-29 | 博世电动工具(中国)有限公司 | 钻削工具及其钻头 |
CN103419284A (zh) * | 2012-05-21 | 2013-12-04 | 博世电动工具(中国)有限公司 | 钻头 |
CN102704844A (zh) * | 2012-06-20 | 2012-10-03 | 常熟市平冶机械有限公司 | 一种钣金钻头 |
EP3181261A1 (de) * | 2015-12-15 | 2017-06-21 | HILTI Aktiengesellschaft | Herstellungsverfahren, werkzeuggerüst und bohrer |
CN108422019B (zh) * | 2018-04-25 | 2023-09-29 | 湖北鑫运祥科技发展有限公司 | 一种三刃分体钻头及制作方法 |
US20220219306A1 (en) * | 2021-01-14 | 2022-07-14 | Milwaukee Electric Tool Corporation | Tool bit |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2075409A (en) * | 1980-05-09 | 1981-11-18 | Vnii Tugoplavkikh | Drills |
DE3820695A1 (de) * | 1988-06-18 | 1989-12-21 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2129913A1 (de) * | 1971-06-16 | 1972-12-21 | Hilti Ag | Gesteinsbohrer |
DE3742661A1 (de) * | 1987-12-16 | 1989-07-13 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
DE4338667A1 (de) * | 1993-11-12 | 1995-05-18 | Hilti Ag | Bohrwerkzeug |
DE4407119A1 (de) * | 1993-12-11 | 1995-06-14 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
DE19516270C1 (de) * | 1995-05-09 | 1997-01-30 | Heller Dinklage Gmbh Geb | Bohrwerkzeug |
DE19545648A1 (de) * | 1995-12-07 | 1997-06-12 | Hilti Ag | Drehschlag-Wendelbohrer |
-
1998
- 1998-02-21 DE DE19807394A patent/DE19807394A1/de not_active Withdrawn
- 1998-11-27 DK DK98811179T patent/DK0937860T3/da active
- 1998-11-27 EP EP98811179A patent/EP0937860B1/de not_active Expired - Lifetime
- 1998-11-27 DE DE59802704T patent/DE59802704D1/de not_active Expired - Lifetime
-
1999
- 1999-01-07 CN CNB031424392A patent/CN1313255C/zh not_active Expired - Fee Related
- 1999-01-07 CN CN99101010A patent/CN1226627A/zh active Pending
- 1999-02-18 US US09/252,191 patent/US6116361A/en not_active Expired - Lifetime
- 1999-02-22 JP JP04284699A patent/JP4361983B2/ja not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2075409A (en) * | 1980-05-09 | 1981-11-18 | Vnii Tugoplavkikh | Drills |
DE3820695A1 (de) * | 1988-06-18 | 1989-12-21 | Hawera Probst Kg Hartmetall | Gesteinsbohrer |
Also Published As
Publication number | Publication date |
---|---|
CN1631636A (zh) | 2005-06-29 |
JP4361983B2 (ja) | 2009-11-11 |
US6116361A (en) | 2000-09-12 |
DE59802704D1 (de) | 2002-02-21 |
CN1226627A (zh) | 1999-08-25 |
DE19807394A1 (de) | 1999-08-26 |
EP0937860B1 (de) | 2001-11-21 |
JPH11285911A (ja) | 1999-10-19 |
DK0937860T3 (da) | 2002-05-21 |
CN1313255C (zh) | 2007-05-02 |
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