GB2068040A - A tool for cutting rocks, ores and minerals - Google Patents
A tool for cutting rocks, ores and minerals Download PDFInfo
- Publication number
- GB2068040A GB2068040A GB8017094A GB8017094A GB2068040A GB 2068040 A GB2068040 A GB 2068040A GB 8017094 A GB8017094 A GB 8017094A GB 8017094 A GB8017094 A GB 8017094A GB 2068040 A GB2068040 A GB 2068040A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cutter
- tool
- cutting
- ores
- minerals
- 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 title claims abstract description 34
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 24
- 239000011707 mineral Substances 0.000 title claims abstract description 24
- 239000011435 rock Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 claims description 4
- 230000006378 damage Effects 0.000 claims description 2
- 238000005065 mining Methods 0.000 claims description 2
- 230000035939 shock Effects 0.000 claims description 2
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
- E21B10/56—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
-
- 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
- E21C35/1837—Mining picks; Holders therefor with inserts or layers of wear-resisting material characterised by the shape
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Knives (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A tool for cutting rocks, ores and minerals, the tool comprising a spherical cutter bit (1) embedded in a cutter body (2). The cutter bit (1) can be rigid with the cutter body (2) or it can be freely movable in relation to the cutter body (2). <IMAGE>
Description
SPECIFICATION
A tool for cutting rocks, ores and minerals
The invention relates to a tool for cutting rocks, ores and minerals.
Cutting tools of various shapes and sizes have been proposed for use in mining machines. In these previously proposed tools, the exposed portion of the cutter bits are cone-shaped with sharp or rounded apices or chisel-shaped with straight or rounded edge surfaces. These cutter bits are not very resistant to dynamic forces generated in cutting operations, particularly when cutting rocks, ores or minerals which are difficult to disintegrate.
These dynamic forces cause the exposed portion of the cutter bit to be destroyed whereupon the destruction of the whole cutter including cutter holders occurs rapidly if the cutter bits are not replaced in time.
According to the present invention there is provided a tool for cutting rocks, ores and minerals, the tool comprising a cutter body and a spherical cutter bit, a major portion of spherical cutter bit being embedded in the cutter body.
Further according to the present invention there is provided a tool for cutting rocks, ores and minerals, the tool comprising a spherical cutter bit embedded in a cutter body.
Tools embodying the invention will now be particularly described, by way of example with reference to the accompanying diagrammatic drawings in which Figures 1 and 2 are side views of tools for cutting rocks, ores and minerals.
The illustrated tool (Fig. 1) comprises a cutter body 2 which is rotatable about its longitudinal axis 3. A spherical cutter bit 1 of a hardened material is rigidly embedded in the cutter body 2.
The said longitudinal axis 3 passes centrally through the cutter bit 1.
In another embodiment of the cutting tool (Fig. 2) the spherical cutter bit 1 is slidable within a recess in the cutter body 2. More than half of the spherical cutter bit 1 is accommodated in the recess in the cutter body 2. In this embodiment, the cutter bit 1 is able to turn in any direction about its centre in the course of a cutting operation.
A spherical body has the greatest mass to surface area ratio of all bodies. Therefore a spherical cutter bit 1 is better able to withstand dynamic shocks or forces than conventional cutter bits which have sharp or slightly rounded cutting tips.
The above described tools are advantageous in that they are very resistant to dynamic forces generated during the cutting of rocks, ores and minerals. Therefore they are very efficient, particularly in the cutting of rocks, ores and minerals which are difficult to disintegrate.
1. A tool for cutting rocks, ores and minerals, the tool comprising a cutter body and a spherical cutter bit, a major portion of spherical cutter bit being embedded in the cutter body.
2. A tool according to claim 1, wherein the spherical cutter bit is rigid with the cutter body.
3. A tool according to claim 1, wherein the spherical cutter bit is slidable in relation to the cutter body.
4. A tool according to any one of claims 1 to 3, wherein the cutter body is rotatable about an axis which passes centrally through the spherical cutter bit.
5. A tool according to any one of claims 1 to 4, wherein the cutter bit is made of hardened material.
6. A tool for cutting rocks, ores and minerals, the tool comprising a spherical cutter bit embedded in a cutter body.
7. A tool for cutting rocks, ores and minerals substantially as hereinbefore described, with reference to Figures 1 and 2 of the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (7)
1. A tool for cutting rocks, ores and minerals, the tool comprising a cutter body and a spherical cutter bit, a major portion of spherical cutter bit being embedded in the cutter body.
2. A tool according to claim 1, wherein the spherical cutter bit is rigid with the cutter body.
3. A tool according to claim 1, wherein the spherical cutter bit is slidable in relation to the cutter body.
4. A tool according to any one of claims 1 to 3, wherein the cutter body is rotatable about an axis which passes centrally through the spherical cutter bit.
5. A tool according to any one of claims 1 to 4, wherein the cutter bit is made of hardened material.
6. A tool for cutting rocks, ores and minerals, the tool comprising a spherical cutter bit embedded in a cutter body.
7. A tool for cutting rocks, ores and minerals substantially as hereinbefore described, with reference to Figures 1 and 2 of the accompanying drawings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS793812A CS209175B1 (en) | 1979-06-04 | 1979-06-04 | Cutter for rock disintegration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2068040A true GB2068040A (en) | 1981-08-05 |
| GB2068040B GB2068040B (en) | 1983-03-16 |
Family
ID=5379307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8017094A Expired GB2068040B (en) | 1979-06-04 | 1980-05-23 | Tool for cutting rocks ores and minerals |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT371569B (en) |
| CS (1) | CS209175B1 (en) |
| DE (1) | DE3019422C2 (en) |
| GB (1) | GB2068040B (en) |
| SE (1) | SE8004137L (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967854A (en) * | 1989-10-05 | 1990-11-06 | Barnetche Gonzalez Eduardo | Double cone cutting head for a drill bit |
| US20130026811A1 (en) * | 2011-07-28 | 2013-01-31 | Boundary Equipment Co. Ltd. | Tool insert |
| US11339655B2 (en) | 2018-04-17 | 2022-05-24 | Betek Gmbh & Co. Kg | Milling pick |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4484783A (en) * | 1982-07-22 | 1984-11-27 | Fansteel Inc. | Retainer and wear sleeve for rotating mining bits |
| DE102018109148A1 (en) * | 2018-04-17 | 2019-10-17 | Betek Gmbh & Co. Kg | Tooth |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3618683A (en) * | 1968-12-16 | 1971-11-09 | Ingersoll Rand Co | Button bit |
| AT341978B (en) * | 1976-04-14 | 1978-03-10 | Voest Ag | ROUND CHISEL |
-
1979
- 1979-06-04 CS CS793812A patent/CS209175B1/en unknown
-
1980
- 1980-05-21 DE DE3019422A patent/DE3019422C2/en not_active Expired
- 1980-05-22 AT AT0276080A patent/AT371569B/en not_active IP Right Cessation
- 1980-05-23 GB GB8017094A patent/GB2068040B/en not_active Expired
- 1980-06-03 SE SE8004137A patent/SE8004137L/en unknown
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4967854A (en) * | 1989-10-05 | 1990-11-06 | Barnetche Gonzalez Eduardo | Double cone cutting head for a drill bit |
| US20130026811A1 (en) * | 2011-07-28 | 2013-01-31 | Boundary Equipment Co. Ltd. | Tool insert |
| US9120243B2 (en) * | 2011-07-28 | 2015-09-01 | Boundary Equipment Co. Ltd. | Tool insert |
| US11339655B2 (en) | 2018-04-17 | 2022-05-24 | Betek Gmbh & Co. Kg | Milling pick |
Also Published As
| Publication number | Publication date |
|---|---|
| DE3019422C2 (en) | 1986-03-20 |
| SE8004137L (en) | 1980-12-05 |
| AT371569B (en) | 1983-07-11 |
| ATA276080A (en) | 1982-11-15 |
| GB2068040B (en) | 1983-03-16 |
| DE3019422A1 (en) | 1980-12-11 |
| CS209175B1 (en) | 1981-11-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |