FIELD: mining.
SUBSTANCE: drilling bit rolling cutter contains a body, an axle installed in the body on bearings, a cover, a variable volume chamber with a piston interconnected with an internal cavity of the rolling cutter. Between the cover and the bearing, on the axle, with a possibility of limited axial movement, the piston is installed, which is spring-loaded with reference to the cover.
EFFECT: increase of the service life of the rolling cutter with the simultaneous decrease of labour input for manufacture.
2 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILL BIT ROLLER CUTTER | 2015 |
|
RU2612171C1 |
| DRILL BIT ROLLER CUTTER | 2015 |
|
RU2579101C1 |
| DRILL BIT ROLLER CUTTER | 2015 |
|
RU2612172C1 |
| WELL REAMER | 1993 |
|
RU2068068C1 |
| ROLLING DRILLING BIT WITH SEALED BEARING | 2008 |
|
RU2389860C1 |
| CONE DRILL BIT | 0 |
|
SU1819319A3 |
| BORING CHISEL FOR WELL BORING WITH BLOW-DOWN OF PIT-FACE WITH AIR | 2002 |
|
RU2231613C2 |
| CHISEL WITH CONICAL CUTTERS, WHICH HAS OIL SEAL FOR COMPLETE FIXATION OF SEAL | 2017 |
|
RU2754252C2 |
| ROLLING-CUTTER DRILLING BIT | 2001 |
|
RU2215112C2 |
| DRILL BIT | 2000 |
|
RU2179619C2 |
