FIELD: soil or rock drilling.
SUBSTANCE: invention relates to the field of drilling equipment, namely to devices for gripping and retaining core when drilling on hard and strong rocks. Core cutter consists of a casing with conical boring and channels inclined to its axis, in which locking elements are made, made in the form of U-shaped rod staples from elastically deformable material. Each elastically deformed rod is provided with a longitudinal groove accommodating rotary bodies located on the side of the core body axis. Grooves have width smaller than that of bodies of revolution.
EFFECT: technical result is higher efficiency of the core grinder.
1 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROLLING ONE-CONE DRILLING BIT (VERSIONS) | 2018 |
|
RU2675265C1 |
| ONE-CUTTER ROCK DRILLING BIT | 2018 |
|
RU2691179C1 |
| SINGLE-ROLLER BIT | 2018 |
|
RU2690980C1 |
| DRILL BIT FLUSHING ASSEMBLY | 2018 |
|
RU2690574C1 |
| FLUSHING ASSEMBLY OF DRILLING BIT | 2018 |
|
RU2686735C1 |
| FLUSHING UNIT OF DRILLING BIT | 2018 |
|
RU2691180C1 |
| CORE SAMPLING TOOL | 2005 |
|
RU2315851C2 |
| CORE-TAKING TOOL | 2006 |
|
RU2318981C1 |
| CORE EXTRACTOR | 2012 |
|
RU2509867C1 |
| SECTIONAL CORE RECEIVER AND DEVICE FOR CUTTING AND CORE RETENTION AT DEVELOPMENT OF SAID CORE RECEIVER | 2014 |
|
RU2570690C1 |
