SU1606677A1 - Crown for rotary-percussive drilling - Google Patents
Crown for rotary-percussive drilling Download PDFInfo
- Publication number
- SU1606677A1 SU1606677A1 SU864204158A SU4204158A SU1606677A1 SU 1606677 A1 SU1606677 A1 SU 1606677A1 SU 864204158 A SU864204158 A SU 864204158A SU 4204158 A SU4204158 A SU 4204158A SU 1606677 A1 SU1606677 A1 SU 1606677A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- crown
- core
- wedge
- angle
- cop
- Prior art date
Links
Landscapes
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Earth Drilling (AREA)
Abstract
Изобретение относитс к породоразрушающему инструменту и позвол ет увеличить скорость бурени за счет повышени эффективности разрушени керна. Коронка содержит корпус 1, разделенный в торцовой части рассечкой 3 на два пера 4, армированных твердосплавными вставками 5, имеющими клинообразный скос (КС) 6 со стороны рассечки 3. Проекци КС 6 на продольную плоскость составл ет не менее 0,7 высоты вставки 5, а угол КС 6 находитс в пределах 5-25°. КС 6 выступает над поверхностью соответствующей грани пера 4 на величину, составл ющую 0,25-0,5 высоты КС 6. Образующийс в процессе работы коронки керн разрушаетс КС 6. Благодар оптимальным размерам КС 6, углу его наклона и вылету разрушение керна осуществл етс в наиболее эффективном режиме. 5 ил.The invention relates to a rock-breaking tool and allows an increase in the drilling rate by increasing the efficiency of core destruction. The crown contains a housing 1, divided in the front part by cutting 3 into two feathers 4 reinforced with carbide inserts 5 having a wedge-shaped bevel (CS) 6 on the side of cutting 3. The projection of COP 6 onto the longitudinal plane is at least 0.7 of the insert 5, and the angle of CS 6 is in the range of 5-25 °. The CS 6 protrudes above the surface of the corresponding edge 4 by a value of 0.25-0.5 times the height of the CS 6. The core that is formed during the operation of the crown is destroyed by the CS 6. Thanks to the optimal size of the COP 6, its angle of inclination and departure, the core is destroyed in the most efficient way. 5 il.
Description
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Фиг. ЧFIG. H
Фиг. 5FIG. five
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864204158A SU1606677A1 (en) | 1986-12-19 | 1986-12-19 | Crown for rotary-percussive drilling |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU864204158A SU1606677A1 (en) | 1986-12-19 | 1986-12-19 | Crown for rotary-percussive drilling |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1606677A1 true SU1606677A1 (en) | 1990-11-15 |
Family
ID=21288544
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU864204158A SU1606677A1 (en) | 1986-12-19 | 1986-12-19 | Crown for rotary-percussive drilling |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1606677A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2445439C1 (en) * | 2010-11-29 | 2012-03-20 | Николай Митрофанович Панин | Crown bit |
-
1986
- 1986-12-19 SU SU864204158A patent/SU1606677A1/en active
Non-Patent Citations (1)
Title |
---|
Авторское свидетельство СССР № 909104, кл. Е 21 В 10/36, 1980. Авторское свидетельство СССР № 221617, кл. Е 21 В 10/36. 1965. * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2445439C1 (en) * | 2010-11-29 | 2012-03-20 | Николай Митрофанович Панин | Crown bit |
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