FIELD: mining..
SUBSTANCE: invention refers to rock destroying tool and can be implemented in bore bits for boreholes by means of impact-rotating method. The technical result is achieved like follows: the insertion contains a cylinder portion and a working portion which is made in form of rotating body of chain line around the symmetry axis - catena.
EFFECT: upgraded efficiency of boring tool.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| HARD-ALLOY INSERT FOR CROWN BIT | 1998 |
|
RU2202030C2 |
| SOLID-ALLOY INSERT FOR BORING DRILL BITS | 1992 |
|
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| CROWN BIT FOR ROTARY-PERCUSSION DRILLING | 1992 |
|
RU2019674C1 |
| HARD METAL INSERT FOR CROWN BITS | 1999 |
|
RU2167993C1 |
| HARD-ALLOY INSERT FOR DRILL BITS | 1995 |
|
RU2090735C1 |
| EDGELESS DRILL BIT | 2001 |
|
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| BIT FOR BLASTHOLE DRILLING | 2001 |
|
RU2212510C2 |
| DRILL CROWN FOR CHURN DRILLING | 1993 |
|
RU2065022C1 |
| DRILLING BIT | 1996 |
|
RU2105123C1 |
| ROLLER BIT WITH HARD-ALLOY INSERTS | 2012 |
|
RU2499121C1 |
