FIELD: mining.
SUBSTANCE: sliding support of drill bit rolling cutters includes trunnion, intermediate sleeve between trunnion and surface of mounting bore of rolling cutter, thrust element made in the form of end projection and having intermediate loosely fitted washer. At that, three-layered packs soaked with standard lubricant are installed between contact surfaces of the end projection of trunnion and intermediate washer, as well as between surfaces of washer and rolling cutter: tracing paper - fluoroplastic film - tracing paper, the contact area of which is equal to the area of intermediate washers.
EFFECT: increasing efficiency of thrust bearing of drill bit rolling cutters.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| BIT GREBENNIKOV-MALINKIN-USHAKOVA'S CONE CUTTER | 2006 |
|
RU2334075C2 |
| DEMOUNTABLE CONE BIT WITH SUPPORTS OF ROLLER CUTTERS ON ROLLER BEARINGS WITH SEPARATORS AND WITH SHORTENED DEMOUNTABLE SECTIONS OF LEGS BY GRIBENNIKOV-MALINKIN | 2006 |
|
RU2347883C2 |
| DEMOUNTABLE ROCK DRILL WITH CONE ROLLERS ON BALL BEARINGS WITH CAGES | 2006 |
|
RU2333341C2 |
| DEMOUNTABLE ROLLING DRILLING BIT WITH REPLACEABLE ROLLING CUTTERS AND VARYING AXES OF SUPPORT BRACKET SECTIONS | 2010 |
|
RU2433244C1 |
| DISMOUNTABLE WHEEL-TYPE DRILLING BIT WITH SHORTENED SECTIONS OF ARMS | 2007 |
|
RU2369717C2 |
| DRILLING BIT ROLLER CUTTER BEARING SUPPORT | 2016 |
|
RU2655065C1 |
| ROLLER BIT BEARING | 1991 |
|
RU2019671C1 |
| DRILL ROCK BIT WITH SEALED SUPPORT | 2010 |
|
RU2453675C1 |
| DRILL BIT WITH BLOWING FACE BY AIR AND SEALING OF ROLLING CUTTER BEARINGS | 2011 |
|
RU2486329C2 |
| BEARING ASSEMBLY OF ROLLER-CUTTER DRILLING BIT | 1991 |
|
RU2068069C1 |
