JPH0258433B2 - - Google Patents
Info
- Publication number
- JPH0258433B2 JPH0258433B2 JP56066144A JP6614481A JPH0258433B2 JP H0258433 B2 JPH0258433 B2 JP H0258433B2 JP 56066144 A JP56066144 A JP 56066144A JP 6614481 A JP6614481 A JP 6614481A JP H0258433 B2 JPH0258433 B2 JP H0258433B2
- Authority
- JP
- Japan
- Prior art keywords
- insert
- cutter
- inserts
- row
- axis
- 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
- 238000005553 drilling Methods 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000011295 pitch Substances 0.000 description 30
- 238000000034 method Methods 0.000 description 11
- 230000007423 decrease Effects 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000005520 cutting process Methods 0.000 description 6
- 239000002689 soil Substances 0.000 description 5
- 238000004590 computer program Methods 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000010187 selection method Methods 0.000 description 1
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
- E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
- E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type inserts
-
- 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
- E21B10/08—Roller bits
- E21B10/16—Roller bits characterised by tooth form or arrangement
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16197780A | 1980-06-23 | 1980-06-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5715796A JPS5715796A (en) | 1982-01-27 |
| JPH0258433B2 true JPH0258433B2 (nl) | 1990-12-07 |
Family
ID=22583644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6614481A Granted JPS5715796A (en) | 1980-06-23 | 1981-04-30 | Cutter for underground drill bit |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS5715796A (nl) |
| AU (1) | AU543784B2 (nl) |
| CA (1) | CA1154752A (nl) |
| DE (1) | DE3117268A1 (nl) |
| GB (1) | GB2078826B (nl) |
| NO (1) | NO156952C (nl) |
| SE (1) | SE448015B (nl) |
| ZA (1) | ZA812521B (nl) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29907492U1 (de) * | 1999-04-29 | 2000-09-28 | Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 41812 Erkelenz | Werkzeug zum Lösen von Erdreich |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50117602A (nl) * | 1974-02-13 | 1975-09-13 | ||
| JPS54149303A (en) * | 1978-05-12 | 1979-11-22 | Dresser Ind | Pitch changeable rotary rock bit |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2230569A (en) * | 1939-12-20 | 1941-02-04 | Globe Oil Tools Co | Roller cutter |
| US2774571A (en) * | 1954-07-06 | 1956-12-18 | Hughes Tool Co | Cone type well drill |
| US3726350A (en) * | 1971-05-24 | 1973-04-10 | Hughes Tool Co | Anti-tracking earth boring drill |
-
1981
- 1981-02-27 CA CA000371949A patent/CA1154752A/en not_active Expired
- 1981-04-14 SE SE8102397A patent/SE448015B/sv not_active IP Right Cessation
- 1981-04-15 ZA ZA00812521A patent/ZA812521B/xx unknown
- 1981-04-16 AU AU69615/81A patent/AU543784B2/en not_active Expired
- 1981-04-21 GB GB8112352A patent/GB2078826B/en not_active Expired
- 1981-04-22 NO NO811356A patent/NO156952C/no unknown
- 1981-04-30 DE DE19813117268 patent/DE3117268A1/de active Granted
- 1981-04-30 JP JP6614481A patent/JPS5715796A/ja active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50117602A (nl) * | 1974-02-13 | 1975-09-13 | ||
| JPS54149303A (en) * | 1978-05-12 | 1979-11-22 | Dresser Ind | Pitch changeable rotary rock bit |
Also Published As
| Publication number | Publication date |
|---|---|
| SE448015B (sv) | 1987-01-12 |
| SE8102397L (sv) | 1981-12-24 |
| DE3117268A1 (de) | 1982-04-15 |
| NO811356L (no) | 1981-12-28 |
| AU6961581A (en) | 1982-01-07 |
| GB2078826B (en) | 1983-12-07 |
| ZA812521B (en) | 1982-04-28 |
| CA1154752A (en) | 1983-10-04 |
| NO156952C (no) | 1987-12-23 |
| DE3117268C2 (nl) | 1991-06-06 |
| GB2078826A (en) | 1982-01-13 |
| NO156952B (no) | 1987-09-14 |
| JPS5715796A (en) | 1982-01-27 |
| AU543784B2 (en) | 1985-05-02 |
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