FIELD: process engineering.
SUBSTANCE: invention relates to rock crushers, primarily, drill bits intended for drilling with the use of central flushing assembly. Drill bit comprises body with central stepped channel, cutters secured at bit legs and pipe made of resilient material arranged in said central channel. Resilient pipe inner surface on one side has at least one ledge provided with ultrasound radiator.
EFFECT: higher efficiency of drilling.
3 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROLLER BIT (VERSIONS) | 2014 |
|
RU2555850C1 |
| ROLLER BIT | 2014 |
|
RU2555851C1 |
| ROLLER BIT (VERSIONS) | 2014 |
|
RU2555961C1 |
| DRILL BIT | 2015 |
|
RU2569944C1 |
| ROTARY BIT HOLE REAMER | 2000 |
|
RU2169822C1 |
| ROCK DRILL BIT | 2014 |
|
RU2543823C1 |
| ROLLER BIT | 2013 |
|
RU2520974C1 |
| ROLLER REAMER | 1996 |
|
RU2112858C1 |
| ROLLER BIT WITH ASYMMETRIC FLUSHING | 2013 |
|
RU2520656C1 |
| ROLLER REAMER | 2014 |
|
RU2600225C1 |
