FIELD: mining.
SUBSTANCE: invention relates to washing units of rock cutting tool. Flushing assembly of drilling bit includes a housing with a channel and a seat having an annular bore, nozzle installed in seat with sealing element and arranged in annular lock split ring with retainer. Nozzle flushing channel is shifted in plan view relative to its longitudinal axis, and holder is made in form of a rod arranged along axis of symmetry of locking ring and made from material with shape memory, wherein one end of rod is rigidly connected with split lock ring, and free end of rod in operating position flushing assembly is arranged between end sections of retaining split ring to interact with them.
EFFECT: technical result is high efficiency.
1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DRILL BIT FLUSHING ASSEMBLY | 2014 |
|
RU2570579C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT (VERSIONS) | 2012 |
|
RU2505659C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT (VERSIONS) | 2016 |
|
RU2617745C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT (VERSIONS) | 2016 |
|
RU2618707C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT (VERSIONS) | 2016 |
|
RU2618726C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT (VERSIONS) | 2016 |
|
RU2618717C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT (VERSIONS) | 2016 |
|
RU2618734C1 |
| FLUSHING ASSEMBLY OF DRILLING UNIT (OPTIONS) | 2017 |
|
RU2663511C1 |
| FLUSHING ASSEMBLY OF THE DRILLING UNIT (OPTIONS) | 2017 |
|
RU2663520C1 |
| FLUSHING ASSEMBLY OF DRILLING UNIT (OPTIONS) | 2017 |
|
RU2663516C1 |
