CN203394377U - Split rigid roller centering device - Google Patents
Split rigid roller centering device Download PDFInfo
- Publication number
- CN203394377U CN203394377U CN201320446297.5U CN201320446297U CN203394377U CN 203394377 U CN203394377 U CN 203394377U CN 201320446297 U CN201320446297 U CN 201320446297U CN 203394377 U CN203394377 U CN 203394377U
- Authority
- CN
- China
- Prior art keywords
- bush
- centering device
- box cupling
- coupling
- rigid roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a split rigid roller centering device and relates to petroleum machinery. The split rigid roller centering device comprises a body (1) with a roller (2). A coupling accommodating cavity (3) is formed in a pipe cavity of the body (1). A clamping table (4) with the diameter smaller than that of the coupling accommodating cavity (3) is disposed at one end of the body (1). A clamping ring (5) with the diameter smaller than that of the coupling accommodating cavity (3) is screwed to the other end of the body (1). Fixing screws (6) are disposed at the clamping table (4) and the clamping ring (5). During use, the centering device can be fixed outside a bush coupling without increasing bush connecting length, the centering device does not move on a bush, the protruding coupling part of a bush tubular column is not restrained when the bush tubular column descends in a well, and the bush does not contact with well wall.
Description
Technical field
The utility model relates to petroleum machinery, is specifically related to a kind of split type rigidity rolling wheel centralizer.
Background technology
Existing centralizer generally adopts integral structure to be serially connected between sleeve pipe.This structure in use, itself has increased the connecting length of sleeve pipe, and the problem that outstanding box cupling position is easily hindered can not solve sleeve pipe tubing string and go into the well time.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of outer split type rigidity rolling wheel centralizer using of box cupling that is enclosed within is provided.
Technical solution of the present utility model is: it comprises the body that is provided with roller, in described body tube chamber, be provided with box cupling container cavity, body one end is provided with the Ka Tai that diameter is less than box cupling container cavity, the body other end is bolted with the snap ring that diameter is less than box cupling container cavity, and Ka Tai and snap ring place are provided with hold-down screw.
Technique effect of the present utility model is: during use, need not increase the connecting length of sleeve pipe, be the product being fixed on outside casing coupling; Can be on sleeve pipe play; Or else box cupling position outstanding when sleeve pipe tubing string is gone into the well can be hindered; Sleeve pipe can not touch the borehole wall.
Accompanying drawing explanation
Fig. 1 is the structural representation that partly cuts open of the present utility model.
The specific embodiment
As shown in Figure 1, it comprises the body 1 that is provided with roller 2, in described body 1 tube chamber, be provided with box cupling container cavity 3, body 1 one end is provided with the card platform 4 that diameter is less than box cupling container cavity 3, body 1 other end is bolted with the snap ring 5 that diameter is less than box cupling container cavity 3, and card platform 4 and snap ring 5 places are provided with for being fixed on the hold-down screw 6 of sleeve outer wall.Axle and the body axis of described roller (2) are perpendicular.Described roller (2) is cydariform.
This product is the rigidity rolling wheel centralizer that is fixed on box cupling outside, adopts split-type structural, by the mode being threaded, is fixed on outside box cupling.
Claims (3)
1. split type rigidity rolling wheel centralizer, comprise the body (1) that is provided with roller (2), it is characterized in that, in described body (1) tube chamber, be provided with box cupling container cavity (3), body (1) one end is provided with the Ka Tai (4) that diameter is less than box cupling container cavity (3), body (1) other end is bolted with the snap ring (5) that diameter is less than box cupling container cavity (3), and Ka Tai (4) and snap ring (5) locate to be provided with hold-down screw (6).
2. split type rigidity rolling wheel centralizer as claimed in claim 1, is characterized in that, axle and the body axis of described roller (2) are perpendicular.
3. split type rigidity rolling wheel centralizer as claimed in claim 1 or 2, is characterized in that, described roller (2) is cydariform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320446297.5U CN203394377U (en) | 2013-07-25 | 2013-07-25 | Split rigid roller centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320446297.5U CN203394377U (en) | 2013-07-25 | 2013-07-25 | Split rigid roller centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203394377U true CN203394377U (en) | 2014-01-15 |
Family
ID=49905913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320446297.5U Expired - Fee Related CN203394377U (en) | 2013-07-25 | 2013-07-25 | Split rigid roller centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203394377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762427A (en) * | 2016-08-18 | 2018-03-06 | 中国石油化工股份有限公司 | A kind of rigid centralizer |
-
2013
- 2013-07-25 CN CN201320446297.5U patent/CN203394377U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107762427A (en) * | 2016-08-18 | 2018-03-06 | 中国石油化工股份有限公司 | A kind of rigid centralizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140725 |
|
| EXPY | Termination of patent right or utility model |