FIELD: mining industry.
SUBSTANCE: device has body, friction elements for destroying surface rock layer with heating, and heat resistant cutters for removing that layer. Friction elements and heat-resistant cutters are fixed on one body. Cutters are mounted in advance relatively to friction elements for value, determined from relation δ=V/nk, where V - planned mechanical drilling speed, m/sec; n - number of toll rotations for 1 sec., turns/sec; k - number of cutters on one cutting line.
EFFECT: higher efficiency and reliability.
2 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| THERMAL-MECHANICAL ROCK-DESTROYING TOOL | 2003 |
|
RU2247216C2 |
| THERMOCLUTCH ROCK-CUTTING TOOL | 2004 |
|
RU2279532C2 |
| DRILLING THERMAL FRICTION BIT | 2009 |
|
RU2416710C1 |
| THERMAL-MECHANICAL DRILLING METHOD AND DEVICE | 2003 |
|
RU2263758C2 |
| HEAT CUTTING HEAD WITH BOTTOMHOLE STRIPPER | 2011 |
|
RU2468175C1 |
| DRILL CROWN WITH FRICTION ELEMENTS | 2013 |
|
RU2539471C2 |
| CUTTING BIT FOR THERMO-FRICTION TOOL | 2004 |
|
RU2288340C2 |
| THERMO-FRICTIONAL JACKBIT | 2008 |
|
RU2376439C1 |
| THERMOCLUTCH ROCK-DESTROYING TOOL | 2007 |
|
RU2374418C2 |
| THERMAL-FRICTION ROCK-BREAKING TOOL | 2007 |
|
RU2373368C2 |
