FIELD: rock-destructing equipment.
SUBSTANCE: invention relates to rock-breaking tool of water jet type, namely, to their washing units. Drill bit flushing assembly comprises a housing with a channel and a socket with a circular bore, and nozzle installed in socket with sealing element, fixed there by means of locking split ring arranged in circular bore seat with L-shaped longitudinal section, contacting with outer surface nozzle. Flushing assembly is equipped with an additional elastic element in the form of tapered skirt made from elastic material. Upper end of skirt is fixed between upper end of sealing element and lower end of nozzle seat, and lower end of skirt is installed with possibility of overlapping on height of upper end of nozzle. Coefficient of elasticity of sealing element is less than coefficient of elasticity of additional elastic element.
EFFECT: technical result consists in improvement of operating efficiency of flushing assembly due to improved hydrodynamic parameters.
1 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FLUSHING ASSEMBLY OF DRILLING BIT | 2018 |
|
RU2686735C1 |
| FLUSHING UNIT OF DRILLING BIT | 2018 |
|
RU2691180C1 |
| ONE-CUTTER ROCK DRILLING BIT | 2018 |
|
RU2691179C1 |
| SINGLE-ROLLER BIT | 2018 |
|
RU2690980C1 |
| ROLLING ONE-CONE DRILLING BIT (VERSIONS) | 2018 |
|
RU2675265C1 |
| CORE GRINDER | 2018 |
|
RU2686208C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT | 2012 |
|
RU2509861C1 |
| DRILL BIT FLUSHING ASSEMBLY | 2013 |
|
RU2536601C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT (VERSIONS) | 2012 |
|
RU2505659C1 |
| FLUSHING UNIT FOR DRILLING BIT (VARIANTS) | 2005 |
|
RU2279529C1 |
