FIELD: drilling of boreholes of various purpose. SUBSTANCE: cone drill bit has feet with pivots which carry cones fastened with lock pins, units for sealing with PVC paste and lubricators with separating plugs. Each lubricator is fabricated in lock pin in the form of space communicating with space of cones with the aid of radial channel and longitudinal channel in pivot. Specified spaces and channels are filled with PVC paste which provides for lubrication and sealing of support of drill bit in process of drilling. EFFECT: increased drilling efficiency. 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROLLER DRILL-BIT | 0 |
|
SU1828899A1 |
| CONE DRILL BIT | 1992 |
|
RU2082868C1 |
| ROLLER-CUTTER DRILLING BIT | 0 |
|
SU1808968A1 |
| DEVICE FOR SEALING THE JOINT BETWEEN ROLLER AND ARM OF DRILL BIT | 0 |
|
SU1359434A1 |
| CONE DRILL BIT | 1985 |
|
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| DRILLING BIT WITH SEALED BEARING | 2008 |
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| SUPPORT FOR CUTTER DRILL BIT | 2007 |
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| ROLLING-CUTTER DRILLING BIT | 2002 |
|
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| SUPPORT OF CONE BIT | 2007 |
|
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| DRILL ROCK BIT WITH SEALED SUPPORT | 2010 |
|
RU2453675C1 |
