FIELD: rock-destroying tools, namely, supports for rolling cutter drilling bits.
SUBSTANCE: support as leg with pivot bolt and rolling cutter held on pivot bolt by means of locking unit. Pivot bolt is made with circular recess, positioned near base of pivot bolt, and locking unit is formed by collapsible ring, mounted in circular recess of pivot bolt and rigidly connected to rolling cutter. Collapsible ring and rolling cutter interact by means of slit connection. Collapsible ring and rolling cutter interact by means of slit connection. Collapsible ring is formed of several parts in form of circular segments, each one of which is connected to rolling cutter.
EFFECT: increased reliability of operation, improved technical and economical characteristics of bit as a whole.
4 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ROLLING CUTTER DRILLING BIT | 2005 |
|
RU2291270C1 |
| SUPPORT FOR ROLLING CUTTER BIT | 2005 |
|
RU2287656C1 |
| ROLLER BIT SUPPORT (VERSIONS) | 2011 |
|
RU2476661C1 |
| SUPPORT FOR ROLLING CUTTER BIT AND METHOD FOR MOUNTING THEREOF | 2005 |
|
RU2291273C1 |
| SUPPORT FOR CUTTER DRILL BIT | 2007 |
|
RU2351738C1 |
| ROLLER CUTTER DRILLING TOOL BEARING ASSEMBLY (VERSIONS) | 2008 |
|
RU2377382C1 |
| SUPPORT OF ROLLING CUTTER DRILLING BIT | 2011 |
|
RU2452842C1 |
| CONE BIT SUPPORT (VERSIONS) | 2008 |
|
RU2374419C1 |
| ROLLER-BIT DRILL SUPPORT | 2007 |
|
RU2350734C1 |
| CONE BIT SUPPORT | 2011 |
|
RU2473771C1 |
