FIELD: mining.
SUBSTANCE: drill tool comprises a housing with channels for cleaning agent reinforced with hollow hard-alloy inserts, the cavities of which are interconnected with the housing channels. Each hard-alloy insert is fitted with a guiding element for cleaning agent designed with the screw shape placed in the insert cavity and fixed in it from crank.
EFFECT: improvement of overall performance of the tool.
4 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILL TOOL | 2014 |
|
RU2543766C1 |
| DOUBLE-EDGED DRILLING BIT | 2004 |
|
RU2269637C1 |
| DRILLING BIT | 2015 |
|
RU2579821C1 |
| DRILLING BIT | 2011 |
|
RU2459064C1 |
| DRILLING BIT | 2004 |
|
RU2269636C1 |
| ANNULAR DRILLING BIT | 2006 |
|
RU2320845C1 |
| HARD-ALLOY INSERT | 2014 |
|
RU2543769C1 |
| DRILL DISK BIT | 2015 |
|
RU2579823C1 |
| DRILL TOOL (VERSIONS) | 2010 |
|
RU2415249C1 |
| CROWN FOR IMPACT-ROTARY DRILLING | 2011 |
|
RU2473772C1 |
