DE3432995A1 - MINING CHISEL - Google Patents
MINING CHISELInfo
- Publication number
- DE3432995A1 DE3432995A1 DE19843432995 DE3432995A DE3432995A1 DE 3432995 A1 DE3432995 A1 DE 3432995A1 DE 19843432995 DE19843432995 DE 19843432995 DE 3432995 A DE3432995 A DE 3432995A DE 3432995 A1 DE3432995 A1 DE 3432995A1
- Authority
- DE
- Germany
- Prior art keywords
- chisel
- mining
- tip
- mining chisel
- hard metal
- 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- Withdrawn
Links
- 238000005065 mining Methods 0.000 title claims description 8
- 229910003460 diamond Inorganic materials 0.000 claims description 6
- 239000010432 diamond Substances 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000012876 carrier material Substances 0.000 claims description 2
- 229910001347 Stellite Inorganic materials 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
-
- 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
- E21B10/56—Button-type inserts
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
- E21C35/183—Mining picks; Holders therefor with inserts or layers of wear-resisting material
- E21C35/1835—Chemical composition or specific material
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Earth Drilling (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Beschreibungdescription
Die Erfindung bezieht sich auf Bergbaumeißel, wie sie bei Bergbaumaschinen für Kohle und andere Materialien und bei Maschinen zum Straßenplanieren verwendet werden.The invention relates to mining bits as used in mining machines for coal and other materials and in Machines used for road grading.
Im allgemeinen weist ein Meißel eines derartigen Typs einen länglichen Körper auf, welcher mit einer Spitze versehen ist, die den Schneidvorgang bewirkt.In general, a chisel of such a type has an elongated body which is tipped that causes the cutting process.
In dem südafrikanischen Patent Nr. 80/7566 wurde bereitsIn the South African patent no. 80/7566 was already
vorgeschlagen,-den Schneideabschnitt der Spitze aus einem Diamantpreßkörper zu bilden. Bei diesem vorbekannten Vorschlag ist der Schneidmeißel aus drei Teilen ausgebil-K det, die aneinander befestigt sind: der Spitze, einerProposed to form the cutting portion of the tip from a diamond compact. In this prior art proposed by the cutting bit of three parts trained K is det, which are attached to each other: the top, a
Hartmetallegierung, wie z.B. Stellit, welche die Spitze trägt, und einem Hauptkörper der Spitze, welcher aus Stahl gefertigt ist.A hard metal alloy such as stellite which supports the tip and a main body of the tip which is made of Steel is made.
Es wurden bereits Spitzen aus gebundenem Wolframkarbid (cemented tungsten carbide) vorgeschlagen, so etwa in dem US-Patent 36 50 565, welche in Körpern aus Stahl eingebettet sind.Cemented tungsten carbide tips have been proposed, such as in the US Pat. No. 3,650,565 which are embedded in bodies made of steel.
Es ist ein Ziel der Erfindung, die Verwendung von Diamantpreßkörpern bei Bergbaumeißeln zu verbessern.It is an object of the invention to use diamond compacts to improve mining chisels.
Ein erfindungsgemäßer Bergbaumeißel weist einen länglichen Körper aus Stahl mit einem Diamantpreßkörper als Schneidspitze auf, wobei die Spitze von einem Material getragen wird, welches härter ist als der Körper und zeichnet sich dadurch aus, daß das Trägermaterial aus gebundenem bzw. gesintertem Metall (cemented hard metal) besteht, bevorzugterweise aus Wolframkarbid, und daß der Preßkör-A mining chisel according to the invention has an elongated body made of steel with a diamond compact as Cutting point on, the point being carried by a material that is harder than the body and draws is characterized by the fact that the carrier material consists of bonded or sintered metal (cemented hard metal), preferably made of tungsten carbide, and that the pressed body
__ per der Länge nach in einer Aussparung in dem Hartmetall oü__ lengthwise in a recess in the hard metal oü
eingebettet ist.is embedded.
Im folgenden wird die Erfindung anhand zweier Ausführungsbeispiele in Verbindung mit der Zeichnung beschrieben. Dabei zeigt:In the following, the invention is described using two exemplary embodiments in conjunction with the drawing. It shows:
Fig. 1 eine erfindungsgemäße Meißelspitze in einer ersten Ausführungsform und1 shows a chisel tip according to the invention in a first embodiment and
Fig. 2 eine zweite Ausführungsform einer erfindungsgemäßenFig. 2 shows a second embodiment of an inventive
Meißelspitze.
10Chisel point.
10
In Fig. 1 ist eine Meißelspitze dargestellt, wie sie in dem US-Patent Nr. 40 84 856 beschrieben ist, welche jedoch gemäß der Lehre der vorliegenden Erfindung verändert wurde. Die Meißelspitze weist einen Körper 10 auf, welcher entlang einer Linie 11 mit einem gebundenen (cemented) Wolframkarbidteil hartverlötet ist. Das vordere Ende des Teils 12 ist mit einem zylindrischen Sackloch ausgebildet, in welchem ein zylindrischer Diamantpreßkörper 13 durch Hartlöten oder Auflagetränkung befestigt ist.1 shows a chisel point as described in US Pat. No. 4,084,856, but which has been modified in accordance with the teachings of the present invention. The chisel tip has a body 10 which runs along a line 11 with a bonded (cemented) tungsten carbide part is brazed. The front end of the part 12 is with a cylindrical blind hole formed in which a cylindrical diamond compact 13 by brazing or Pad impregnation is attached.
In Fig. 2 ist ein Meißel des Typs dargestellt, wie er in dem britischen Patent Nr. 11 70 979 beschrieben ist. Der Meißel weist einen Körper 20 auf, an welchem ein. Wolframkarbidabschnitt 21 befestigt ist, der einen zylindrischen Diamantpreßkörper 23 trägt.Referring to Figure 2, there is shown a chisel of the type described in British Patent No. 11,70979. Of the Chisel has a body 20 on which a. Tungsten carbide section 21 is attached, which has a cylindrical Diamond compact 23 carries.
In der Praxis nützt sich der Teil 12 und der Abschnitt 21 stufenweise mit dem Preßkörper 13 oder 23 ab.In practice, the part 12 and the section 21 wear out gradually with the pressed body 13 or 23.
Claims (2)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA836855 | 1983-09-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3432995A1 true DE3432995A1 (en) | 1985-04-04 |
Family
ID=25576912
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19843432995 Withdrawn DE3432995A1 (en) | 1983-09-15 | 1984-09-07 | MINING CHISEL |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU3290184A (en) |
BE (1) | BE900582A (en) |
DE (1) | DE3432995A1 (en) |
FR (1) | FR2553146A1 (en) |
GB (1) | GB2148353B (en) |
IT (1) | IT1196248B (en) |
SE (1) | SE8404494L (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0235455A2 (en) * | 1986-02-13 | 1987-09-09 | Smith International, Inc. | Percussion rock bit |
WO2010129977A3 (en) * | 2009-05-14 | 2011-04-28 | Sandvik Mining And Construction G.M.B.H. | Cutting tool for a mining machine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ZA846759B (en) * | 1983-09-05 | 1985-02-27 | ||
AU577958B2 (en) * | 1985-08-22 | 1988-10-06 | De Beers Industrial Diamond Division (Proprietary) Limited | Abrasive compact |
US4764255A (en) * | 1987-03-13 | 1988-08-16 | Sandvik Ab | Cemented carbide tool |
CN104712336A (en) * | 2015-03-26 | 2015-06-17 | 河南四方达超硬材料股份有限公司 | Composite cutting tooth made of polycrystalline diamond and hard alloy |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE639335A (en) * | ||||
GB156521A (en) * | 1914-10-09 | 1922-04-05 | Signal Gmbh | Transmitting arrangement for submarine sound signals |
GB1114156A (en) * | 1964-09-01 | 1968-05-15 | Coal Industry Patents Ltd | Improvements in or relating to cutter picks |
DE2610734A1 (en) * | 1976-03-13 | 1977-09-22 | Krupp Gmbh | TOOL EQUIPPED WITH CUTTING PINS AND DRIVE PINS FOR REMOVING ROCKS AND MINERALS |
DE2719330C3 (en) * | 1977-04-30 | 1984-01-05 | Christensen, Inc., 84115 Salt Lake City, Utah | Rotary drill bit |
CS202186B1 (en) * | 1977-11-29 | 1980-12-31 | Jaroslav Vasek | Knite incl. the knife holder determined for disconnectig the materials part. rocks |
GB2041427B (en) * | 1978-11-01 | 1982-08-18 | Nl Industries Inc | Insert for tool wear surfaces and method of manufacture |
ZA806249B (en) * | 1979-11-19 | 1982-01-27 | Gen Electric | Compacts for diamond drill and saw applications |
DE3114749C2 (en) * | 1981-04-11 | 1983-10-27 | Christensen, Inc., 84115 Salt Lake City, Utah | Wedge-shaped cutting link for rotary drill bits for deep drilling |
NL8203750A (en) * | 1981-10-29 | 1983-05-16 | Smith International | REMOVAL DEVICE FOR DIAMOND CUTTING DEVICE FOR SCRAP CHISELS. |
CA1194857A (en) * | 1982-02-20 | 1985-10-08 | Nl Industries, Inc. | Rotary drilling bits |
EP0103391A3 (en) * | 1982-08-06 | 1985-06-05 | Huddy Diamond Crown Setting Company (Proprietary) Limited | Cutter inserts for picks, picks and pick blanks |
US4538690A (en) * | 1983-02-22 | 1985-09-03 | Nl Industries, Inc. | PDC cutter and bit |
-
1984
- 1984-09-06 GB GB08422564A patent/GB2148353B/en not_active Expired
- 1984-09-07 DE DE19843432995 patent/DE3432995A1/en not_active Withdrawn
- 1984-09-07 SE SE8404494A patent/SE8404494L/en not_active Application Discontinuation
- 1984-09-10 IT IT8422585A patent/IT1196248B/en active
- 1984-09-11 AU AU32901/84A patent/AU3290184A/en not_active Abandoned
- 1984-09-14 FR FR8414112A patent/FR2553146A1/en active Pending
- 1984-09-14 BE BE0/213654A patent/BE900582A/en not_active IP Right Cessation
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0235455A2 (en) * | 1986-02-13 | 1987-09-09 | Smith International, Inc. | Percussion rock bit |
EP0235455A3 (en) * | 1986-02-13 | 1988-11-17 | Smith International, Inc. | Percussion rock bit |
WO2010129977A3 (en) * | 2009-05-14 | 2011-04-28 | Sandvik Mining And Construction G.M.B.H. | Cutting tool for a mining machine |
Also Published As
Publication number | Publication date |
---|---|
SE8404494D0 (en) | 1984-09-07 |
IT1196248B (en) | 1988-11-16 |
AU3290184A (en) | 1985-03-21 |
GB2148353A (en) | 1985-05-30 |
BE900582A (en) | 1985-01-02 |
GB2148353B (en) | 1986-03-05 |
SE8404494L (en) | 1985-03-16 |
GB8422564D0 (en) | 1984-10-10 |
IT8422585A0 (en) | 1984-09-10 |
FR2553146A1 (en) | 1985-04-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8139 | Disposal/non-payment of the annual fee |