EP0685629B1 - Gesteinsbohrer - Google Patents
Gesteinsbohrer Download PDFInfo
- Publication number
- EP0685629B1 EP0685629B1 EP95810187A EP95810187A EP0685629B1 EP 0685629 B1 EP0685629 B1 EP 0685629B1 EP 95810187 A EP95810187 A EP 95810187A EP 95810187 A EP95810187 A EP 95810187A EP 0685629 B1 EP0685629 B1 EP 0685629B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- flutes
- drill
- drill bit
- diametrically opposed
- drill head
- 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
- 239000011435 rock Substances 0.000 title claims description 30
- 239000002184 metal Substances 0.000 claims abstract description 8
- 238000000926 separation method Methods 0.000 claims 4
- 208000028659 discharge Diseases 0.000 description 20
- 238000005520 cutting process Methods 0.000 description 13
- 238000005553 drilling Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 206010038743 Restlessness Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
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
- B28D1/14—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by boring or drilling
-
- 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
Definitions
- the invention relates to a rock drill with a clamping shank, at least one four parallel flutes with flutes and a drill head connected to the drill shaft and made entirely of hard metal with four discharge grooves arranged around the circumference, with the clear cross sections of the delivery and flute covers.
- Rock drills of the type in question are used to drill holes in Rock, concrete, masonry and the like. It is known that the rock drill is in the area wear the tip of the drill extremely quickly when drilling in hard ground. That is why rock drills are equipped with hard metal, under hard metal understood sintered or melted carbides, silicates, borides or their alloys become.
- Such a rock drill is known from US Pat. No. 2,673,716.
- This rock drill has a total of hard metal connected to the drill shank Drilling head, the four extraction grooves arranged evenly distributed around the circumference, which run in the longitudinal direction of the drill head.
- the drill head has a centrally arranged projection, which protrudes into a corresponding recess in the drill shank.
- the invention has for its object a rock drill with a hard metal to create existing drill head, which is characterized by high drilling performance, long service life, characterized by quiet running and good drilling cuttings.
- this is achieved in that the discharge grooves of the drill head have a different sized, clear cross section.
- the larger discharge ducts form the main discharge channels and the further discharge pipes, which are made smaller, the secondary discharge channels.
- the clear cross sections of different sizes can be formed of Abfuhmuten, which expediently have a different radial distance from the center of the drill head.
- the radial extension of the first two discharge grooves advantageously corresponds to that 0.05 to 0.25 times the outside diameter of the drill head.
- the radial extension of the two second discharge grooves preferably correspond to 0.1 to 0.35 times the outside diameter of the drill head. Due to the relatively deeply trained execution paths the extent of the discharge grooves in the circumferential direction of the drill head is small and that part the circumference of the drill head, which is supported on the borehole wall, kept large become.
- the Abfuhmuten are arranged running in the longitudinal direction of the drill head.
- the drill cuttings reach the flutes of the Drill shaft, the flutes of the drill shaft advantageously spiral are trained.
- the spiral flutes ensure further transport of the removed cuttings from the deepest part of the borehole to the Surface of the borehole.
- the rock drill shown in FIGS. 1 and 2 has a clamping shank 1, a drill shaft 2 with four flutes 4, 5, 6, 7 arranged parallel to one another, which are formed in a spiral and one connected to the drill shaft 2, in total made of hard metal drill head 3 with four evenly distributed around the circumference arranged Abfuhmuten 8, 9, 10, 11.
- the radial distances R1 from the center Z of the Boring head 3 of two first, diametrically opposite extraction grooves 8, 10 are smaller than the radial distances R2 from two second diametrically opposite one another Execution 9, 11.
- At least one cutting edge 12 is arranged, which at least partially along the Front side extends over the entire diameter of the drill head 3. This cutting edge 12 is used to remove drill cuttings, not shown.
- the drill head 13 shown in Fig. 3 has four Abfuhmuten 14, 15, 16, 17, the regular are distributed around the circumference.
- the clear cross sections of two first, each other diametrically opposite discharge grooves 14, 16 are larger than the clear ones Cross-sections of two second, diametrically opposite, exhaust grooves 15, 17.
- the extensions B1, B3 of the discharge grooves 14, 16 in the circumferential direction of the drill head 13 are larger than the extensions B2, B4 of the delivery rods 15, 17.
- the discharge grooves 14, 16 are opposite the discharge grooves 15, 17 at an angle W of 90 ° arranged.
- the drill head 23 shown in FIG. 4 has four discharge grooves arranged distributed around the circumference 24, 25, 26, 27, which run in the longitudinal direction of the drill head 23.
- the discharge grooves 24, 25, 26, 27 have a clear cross-section of different sizes. Therefore the Abfuhmuten 24, 25, 26, 27 have a different radial distance R3, R4, R5, R6 from the center Z of the drill head 23.
- the drill head 3 shown in FIGS. 1 and 2 has an outer diameter D which is essentially of the same size as the outside diameter of the drill shank Second
- the drill head 3 is connected to the drill shaft 2, for example, by a solder connection.
- the better centering during the soldering process and the formation of a Larger connecting surface serve centering means, not shown, in the form of projections on the drill head 3, which are formed in appropriately designed depressions, not shown of the drill shaft 2 protrude. These projections or depressions are special arranged in the central area of the rock drill. Such advances can be conical, for example.
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (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)
- Drilling Tools (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Steroid Compounds (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4419641A DE4419641A1 (de) | 1994-06-04 | 1994-06-04 | Gesteinsbohrer |
DE4419641 | 1994-06-04 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0685629A2 EP0685629A2 (de) | 1995-12-06 |
EP0685629A3 EP0685629A3 (de) | 1996-12-18 |
EP0685629B1 true EP0685629B1 (de) | 2002-08-14 |
Family
ID=6519846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95810187A Expired - Lifetime EP0685629B1 (de) | 1994-06-04 | 1995-03-20 | Gesteinsbohrer |
Country Status (16)
Country | Link |
---|---|
US (1) | US5553682A (fi) |
EP (1) | EP0685629B1 (fi) |
JP (1) | JPH07329049A (fi) |
KR (1) | KR960000438A (fi) |
CN (1) | CN1116683A (fi) |
AT (1) | ATE222321T1 (fi) |
AU (1) | AU690659B2 (fi) |
CA (1) | CA2150164C (fi) |
CZ (1) | CZ82895A3 (fi) |
DE (2) | DE4419641A1 (fi) |
DK (1) | DK0685629T3 (fi) |
ES (1) | ES2181759T3 (fi) |
FI (1) | FI108622B (fi) |
HU (1) | HU216598B (fi) |
PL (1) | PL308889A1 (fi) |
TW (1) | TW284718B (fi) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2116321A1 (de) | 2008-05-09 | 2009-11-11 | Irwin Industrial Tools GmbH | Bogrwerkzeug, insbesondere Spiralbohrer |
DE102008022945A1 (de) | 2008-05-09 | 2009-12-03 | Irwin Industrial Tools Gmbh | Bohrwerkzeug, insbesondere Spiralbohrer |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19707115A1 (de) * | 1997-02-22 | 1998-08-27 | Hilti Ag | Bohr- und/oder Meisselwerkzeug |
DE10009732A1 (de) * | 2000-03-02 | 2001-09-06 | Hawera Probst Gmbh | Gesteinsbohrer |
DE10047332A1 (de) * | 2000-09-25 | 2002-04-11 | Hilti Ag | Werkzeug mit Wendel |
KR20010051858A (ko) * | 2000-11-22 | 2001-06-25 | 윤광근 | 파쇄기용 치즐 |
DE20108179U1 (de) | 2001-05-15 | 2001-07-26 | Plica Werkzeugfabrik Ag, Mollis | Bohrer |
CA2790224C (en) | 2002-08-08 | 2013-07-30 | Surgibit Ip Holdings Pty Limited | A drill bit and method for producing a drill bit |
GB2393681A (en) * | 2002-10-03 | 2004-04-07 | Black & Decker Inc | Masonry drilling tool |
US8146256B2 (en) * | 2003-10-31 | 2012-04-03 | Stanley Black & Decker, Inc. | Metal demolition shears with indexable, integrated wear plate/piercing tip |
DE102004028099A1 (de) * | 2004-06-09 | 2005-12-29 | Hilti Ag | Bohrer |
GB2433905B (en) * | 2006-01-06 | 2009-07-15 | Kuldip Singh Kanth | Apparatus for use in the installation of a shower enclosure |
DE102006000208A1 (de) | 2006-04-28 | 2007-10-31 | Hilti Ag | Drehschlagbohrer mit viergängigem Bohrwendelschaft |
DE102007062539B4 (de) * | 2006-12-21 | 2012-08-23 | Stefan Rothenaicher | Bohrwerkzeug |
DE202006019501U1 (de) * | 2006-12-21 | 2008-04-30 | Rothenaicher, Stefan | Bohrwerkzeug |
DE102006035306A1 (de) | 2006-12-22 | 2008-06-26 | Hilti Ag | Drehschlagbohrer mit Hartstoffeinsatz |
DE102007000486A1 (de) | 2007-09-05 | 2009-03-12 | Hilti Aktiengesellschaft | Oberflächenbehandlung für Hartstoffe und Werkzeuge mit diesen Hartstoffen |
US20090148250A1 (en) * | 2007-12-05 | 2009-06-11 | Wayne Chappell | Drill Bit |
US7861807B2 (en) * | 2008-12-03 | 2011-01-04 | Black & Decker Inc. | Drill bit including one piece cutting head |
CN103433535B (zh) * | 2013-08-26 | 2015-11-04 | 深圳市金洲精工科技股份有限公司 | 一种微型钻头 |
DE102014203327A1 (de) * | 2014-02-25 | 2015-08-27 | Robert Bosch Gmbh | Bohrwerkzeug |
CN104493263A (zh) * | 2014-09-28 | 2015-04-08 | 上海奥林汽车安全系统有限公司 | 一种高加工精度的双刃带麻花钻 |
CN105108211B (zh) * | 2015-09-15 | 2018-06-26 | 深圳市金洲精工科技股份有限公司 | 错齿刃钻头 |
DE102017117664A1 (de) * | 2017-08-03 | 2019-02-07 | Drebo Werkzeugfabrik Gmbh | Bohrer |
US11679442B2 (en) | 2018-06-22 | 2023-06-20 | Maestro Logistics, Llc | Drill bit and method for making a drill bit |
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 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US580398A (en) * | 1897-04-13 | Peter j | ||
US599537A (en) * | 1898-02-22 | Martin steudner | ||
US750537A (en) * | 1904-01-26 | Drilling-tool | ||
GB512830A (en) * | 1938-03-17 | 1939-09-27 | John Joseph Rawlings | Improvements in percussion drills |
US2217202A (en) * | 1939-10-19 | 1940-10-08 | Rawlplug Company Inc | Percussion drill |
US2370706A (en) * | 1943-11-29 | 1945-03-06 | Rudolf W Andreasson | Drill |
US2673716A (en) * | 1950-09-02 | 1954-03-30 | Clyde E Avery | Bit |
US3089354A (en) * | 1959-10-30 | 1963-05-14 | Spiralbohrer Und Werkzeugfabri | Method for the production of cutting tools |
CH626557A5 (fi) * | 1978-09-28 | 1981-11-30 | Guex Philippe & Fils Sa | |
US4898503A (en) * | 1988-07-05 | 1990-02-06 | Lockheed Corporation | Twist drill |
US5297456A (en) * | 1990-02-07 | 1994-03-29 | Gn Tool Co., Ltd. | Cutting tool with twisted edge and manufacturing method thereof |
US5265688A (en) * | 1990-04-09 | 1993-11-30 | Hilti Aktiengesellschaft | Rock drill |
DE4011441A1 (de) * | 1990-04-09 | 1991-10-10 | Hilti Ag | Gesteinsbohrer |
SE507842C2 (sv) * | 1992-09-24 | 1998-07-20 | Sandvik Ab | Borr |
-
1994
- 1994-06-04 DE DE4419641A patent/DE4419641A1/de not_active Withdrawn
-
1995
- 1995-03-20 ES ES95810187T patent/ES2181759T3/es not_active Expired - Lifetime
- 1995-03-20 DK DK95810187T patent/DK0685629T3/da active
- 1995-03-20 DE DE59510316T patent/DE59510316D1/de not_active Expired - Lifetime
- 1995-03-20 EP EP95810187A patent/EP0685629B1/de not_active Expired - Lifetime
- 1995-03-20 AT AT95810187T patent/ATE222321T1/de not_active IP Right Cessation
- 1995-03-31 CZ CZ95828A patent/CZ82895A3/cs unknown
- 1995-04-26 KR KR1019950009888A patent/KR960000438A/ko active IP Right Grant
- 1995-05-09 TW TW084104604A patent/TW284718B/zh active
- 1995-05-25 CA CA002150164A patent/CA2150164C/en not_active Expired - Fee Related
- 1995-05-26 FI FI952565A patent/FI108622B/fi active
- 1995-05-30 AU AU20395/95A patent/AU690659B2/en not_active Ceased
- 1995-06-02 HU HU9501624A patent/HU216598B/hu not_active IP Right Cessation
- 1995-06-02 PL PL95308889A patent/PL308889A1/xx unknown
- 1995-06-02 CN CN95107179A patent/CN1116683A/zh active Pending
- 1995-06-05 JP JP7138039A patent/JPH07329049A/ja active Pending
- 1995-06-07 US US08/474,846 patent/US5553682A/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2116321A1 (de) | 2008-05-09 | 2009-11-11 | Irwin Industrial Tools GmbH | Bogrwerkzeug, insbesondere Spiralbohrer |
DE102008022945A1 (de) | 2008-05-09 | 2009-12-03 | Irwin Industrial Tools Gmbh | Bohrwerkzeug, insbesondere Spiralbohrer |
Also Published As
Publication number | Publication date |
---|---|
EP0685629A2 (de) | 1995-12-06 |
DE59510316D1 (de) | 2002-09-19 |
CA2150164A1 (en) | 1995-12-05 |
CA2150164C (en) | 2001-02-27 |
DK0685629T3 (da) | 2002-12-02 |
FI952565A (fi) | 1995-12-05 |
DE4419641A1 (de) | 1995-12-07 |
CN1116683A (zh) | 1996-02-14 |
FI952565A0 (fi) | 1995-05-26 |
PL308889A1 (en) | 1995-12-11 |
AU2039595A (en) | 1995-12-14 |
KR960000438A (ko) | 1996-01-25 |
HUT71760A (en) | 1996-01-29 |
JPH07329049A (ja) | 1995-12-19 |
ATE222321T1 (de) | 2002-08-15 |
FI108622B (fi) | 2002-02-28 |
HU9501624D0 (en) | 1995-07-28 |
HU216598B (hu) | 1999-07-28 |
ES2181759T3 (es) | 2003-03-01 |
EP0685629A3 (de) | 1996-12-18 |
AU690659B2 (en) | 1998-04-30 |
CZ82895A3 (en) | 1995-12-13 |
US5553682A (en) | 1996-09-10 |
TW284718B (fi) | 1996-09-01 |
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