FIELD: mining industry. SUBSTANCE: this relates to rock-crushing tools used for drilling rock in construction of bore-holes. Diamond rock-crushing tool has body and diamond bearing matrix separated by flushing groove into sectors and installed on body by means of joint type: circular protrusion - circular slot. Matrix is installed on body for possible splitting. Its sectors are connected to each other by means of partitions secured to bases of flushing grooves. They are made in body as protruding towards matrix with formation of mating supporting surfaces. Base of flushing groove in its thickness is larger than circular protrusion conjugated with it. Supporting surfaces of circular protrusion and circular slot are made cone-shaped. EFFECT: higher efficiency. 1 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DIAMOND ROCK DESTRUCTION TOOL | 2018 |
|
RU2710231C1 |
| CROWN BIT | 1997 |
|
RU2120021C1 |
| DRILL BIT | 2014 |
|
RU2567260C1 |
| DRILLING BIT | 2016 |
|
RU2615660C1 |
| DRILLING CLOWN BIT | 0 |
|
SU1756529A1 |
| DIAMOND DRILL BIT | 1999 |
|
RU2170321C2 |
| DIAMOND CROWN BIT | 2001 |
|
RU2203381C2 |
| DOWNHOLE MOTOR | 2004 |
|
RU2283936C2 |
| DRILL PIPE | 2016 |
|
RU2631458C1 |
| COLUMN SET | 2017 |
|
RU2654087C1 |
