FIELD: mining.
SUBSTANCE: drilling bit rolling cutter includes housing with rims reinforced with hard-alloy inserts. Rolling cutter is provided with a sleeve rigidly fixed on a rim which one end is designed with slots for hard-alloy inserts with congruent contact surfaces. Hard-alloy inserts are made on the top side with supporting surface interacting with walls of sleeve grooves.
EFFECT: simplifying technology of attachment of hard-alloy teeth to rims of rolling cut.
3 cl, 7 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILLING BIT ROLLER CUTTER | 2010 |
|
RU2445434C1 |
| DRILLING BIT ROLLING CUTTER | 2011 |
|
RU2452840C1 |
| ROTARY DRILLING BIT (VERSIONS) | 2007 |
|
RU2334862C1 |
| DRILLING BIT ROLLING CUTTER (VERSIONS) | 2010 |
|
RU2450114C1 |
| BIT FOR REACTIVE TURBODRILLING | 2016 |
|
RU2620108C1 |
| ROCK DRILL CUTTER (VARIANTS) | 2010 |
|
RU2442874C1 |
| HARD-ALLOY INSERT | 2016 |
|
RU2620519C1 |
| ROLLER BIT (VERSIONS) | 2014 |
|
RU2567560C1 |
| ROLLING DRILLING BIT | 2012 |
|
RU2508441C1 |
| HARD-ALLOY INSERT | 2016 |
|
RU2624744C1 |
