CN204492691U - Braking rotary centralizer - Google Patents
Braking rotary centralizer Download PDFInfo
- Publication number
- CN204492691U CN204492691U CN201520171148.1U CN201520171148U CN204492691U CN 204492691 U CN204492691 U CN 204492691U CN 201520171148 U CN201520171148 U CN 201520171148U CN 204492691 U CN204492691 U CN 204492691U
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- CN
- China
- Prior art keywords
- positive cover
- supporting positive
- brake tooth
- face
- rod
- 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 application relates to a kind of braking rotary centralizer and comprises the body of rod, described body of rod upper and lower side connects upper and lower box cupling respectively, it is characterized in that: on described upper and lower box cupling opposite face, be equiped with brake tooth and lower brake tooth respectively, the body of rod between upper and lower brake tooth is socketed with supporting positive cover, the upper and lower end face of described supporting positive cover all offers teeth circle, and the teeth circle that described upper and lower end face is offered coordinates with upper and lower brake tooth respectively to be braked.The utility model structure is simple, drive supporting positive cover by liquid impulsion wiper block in oil pipe, can prevent supporting positive cover from stopping friction over a long time in same angle, thus when making to work in oil pipe, it can prevent from partially rubbing effectively, smaller to oil pipe wearing and tearing, supporting positive cover wearing and tearing are also more even.
Description
Technical field
The utility model relates to the braking rotary centralizer that a kind of oil field uses.
Background technology
The centralizer that oil field uses now is divided into rolling wheel centralizer and common centralizer.Wherein rolling wheel centralizer uses iron tyre centralizer in thermal recovery oil well, can grind a groove when Long-Time Service on oil pipe, and sometimes also can break because of bearing pin can be stuck oil well pump.And for using common centralizer in oil well, the supporting positive cover of centralizer can be squeezed on tubing wall because of sucker rod partial wear, supporting positive cover is not rotated, so just there will be supporting positive cover intact, supporting positive cover will not wear and tear bad by another side wearing and tearing for a long time.The centralizer of above two kinds of structures is all because structure limit, comparatively large to self and Tubing failure, easily causes leakage.
Summary of the invention
The purpose of this utility model is that proposing one prevents from partially rubbing effectively, and smaller to oil pipe wearing and tearing, supporting positive cover wearing and tearing also brake rotary centralizer more uniformly.
The purpose of this utility model is achieved in that braking rotary centralizer comprises the body of rod, described body of rod upper and lower side connects upper and lower box cupling respectively, it is characterized in that: on described upper and lower box cupling opposite face, be equiped with brake tooth and lower brake tooth respectively, the body of rod between upper and lower brake tooth is socketed with supporting positive cover, the upper and lower end face of described supporting positive cover all offers teeth circle, and the teeth circle that described upper and lower end face is offered coordinates with upper and lower brake tooth respectively to be braked.
The utility model structure is simple, drive supporting positive cover by liquid impulsion wiper block in oil pipe, can prevent supporting positive cover from stopping friction over a long time in same angle, thus when making to work in oil pipe, it can prevent from partially rubbing effectively, smaller to oil pipe wearing and tearing, supporting positive cover wearing and tearing are also more even.When needs are braked supporting positive cover, teeth circle is engaged with upper or lower brake tooth, can brakes supporting positive cover.
Accompanying drawing illustrates: concrete structure of the present utility model is provided by following drawings and Examples:
Fig. 1 is braking rotary centralizer structural representation.
Legend: 1, upper box cupling, 2, upper brake tooth, 3, the body of rod, 4, teeth circle, 5, wiper block, 6, lower brake tooth, 7, lower box cupling, 8, supporting positive cover.
Detailed description of the invention: the utility model by the restriction of following embodiment, can not determine concrete embodiment according to the technical solution of the utility model and actual conditions.
Embodiment: as shown in Figure 1, braking rotary centralizer comprises the body of rod 3, the described body of rod 3 upper and lower side connects upper and lower box cupling 1,7 respectively, described upper and lower box cupling 1,7 opposite face is equiped with brake tooth 2 and lower brake tooth 6 respectively, the body of rod 3 between upper and lower brake tooth 2,6 is socketed with supporting positive cover 8, the upper and lower end face of described supporting positive cover 8 all offers teeth circle 4, and the teeth circle 4 that described upper and lower end face is offered coordinates with upper and lower brake tooth 2,6 respectively to be braked.
Wiper block 5 is evenly distributed with along its axially spaced-apart on supporting positive cover 8 surface.
Described wiper block 5 lateral surface is divided into upper, middle and lower segment side from top to bottom, and side, stage casing is arcwall face, and any place's curvature of this arcwall face is identical, and namely it can form a cavity cylinder around supporting positive cover 8 central axis.Be connected with upper and lower section of symmetrical side in both sides, side, stage casing, epimere side is up-small and down-big arcwall face, and hypomere side is up big and down small arcwall face.
Described upper and lower brake tooth 2,6 and teeth circle 4 have some teeth, and described teeth number, shape, size are all identical.
During use, after the application puts into oil pipe, namely wiper block 5 contacts with tube inner wall.Along with moving up and down of the application, in pipe, namely liquid can get excited wiper block 5, thus drives supporting positive cover 8 to rotate, thus avoids wiper block 5 repeatedly to rub at same position.Teeth circle 4 with on or lower brake tooth 2 or 6 is engaged time, can brake supporting positive cover 8.
Obviously, above-mentioned explanation of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.Every belong to the technical solution of the utility model the apparent change of amplifying out or variation be still in the row of protection domain of the present utility model.
Claims (4)
1. a braking rotary centralizer, comprise the body of rod, described body of rod upper and lower side connects upper and lower box cupling respectively, it is characterized in that: on described upper and lower box cupling opposite face, be equiped with brake tooth and lower brake tooth respectively, the body of rod between upper and lower brake tooth is socketed with supporting positive cover, the upper and lower end face of described supporting positive cover all offers teeth circle, and the teeth circle that described upper and lower end face is offered coordinates with upper and lower brake tooth respectively to be braked.
2. brake rotary centralizer as claimed in claim 1, it is characterized in that: be evenly distributed with wiper block on supporting positive cover surface along its axially spaced-apart.
3. brake rotary centralizer as claimed in claim 2, it is characterized in that: described wiper block lateral surface is divided into upper, middle and lower segment side from top to bottom, side, stage casing is arcwall face, any place's curvature of this arcwall face is identical, upper and lower section of symmetrical side is connected with in both sides, side, stage casing, epimere side is up-small and down-big arcwall face, and hypomere side is up big and down small arcwall face.
4. brake rotary centralizer as claimed in claim 1, it is characterized in that: described upper and lower brake tooth and teeth circle have some teeth, described teeth number, shape, size are all identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171148.1U CN204492691U (en) | 2015-03-26 | 2015-03-26 | Braking rotary centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520171148.1U CN204492691U (en) | 2015-03-26 | 2015-03-26 | Braking rotary centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492691U true CN204492691U (en) | 2015-07-22 |
Family
ID=53572013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520171148.1U Expired - Fee Related CN204492691U (en) | 2015-03-26 | 2015-03-26 | Braking rotary centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204492691U (en) |
-
2015
- 2015-03-26 CN CN201520171148.1U patent/CN204492691U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20210326 |