CN204511330U - A kind of fastening Integral elastic centralizer - Google Patents
A kind of fastening Integral elastic centralizer Download PDFInfo
- Publication number
- CN204511330U CN204511330U CN201520138126.5U CN201520138126U CN204511330U CN 204511330 U CN204511330 U CN 204511330U CN 201520138126 U CN201520138126 U CN 201520138126U CN 204511330 U CN204511330 U CN 204511330U
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- ring
- arc
- rings
- elastic centralizer
- fastening
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Abstract
The utility model discloses a kind of fastening Integral elastic centralizer, the many arc righting strips comprising two back-up rings at two ends and be connected between two back-up rings, described back-up ring is two semicircular ring, two semicircular ring one end Fixed hinges link together, the other end of back-up ring waits until the hinge of fastening in advance, be movably connected by pin axle, arc righting strip inside-out bends to arc surface, and described arc righting strip and two back-up rings are integrally formed.The back-up ring at described two ends is provided with the stop top wire hole preventing elastic centralizer installation stop jackscrew of upper and lower play on sleeve pipe.Described back-up ring and the arc righting strip of Duo Gen are by the overall stamping forming structure of a block plate.The utility model has free-open-close, the feature that uprighting force is strong.Due to its reasonable in design, not only reliability high and also can free-open-close connect, convenient and swift.
Description
Technical field
The elastic centralizer that the utility model relates to, especially a kind ofly fastens Integral elastic centralizer, and meeting integral-type centralizer can the function of free-open-close, can be used in various cementing operation.
Background technology
The centralizer of various forms and specification is one of instrument the most frequently used in current cementing operation, its main function ensures that sleeve pipe is placed in the middle in pit shaft, the righting strip of elastic centralizer, because having elasticity, compares and is applicable to the oil gas field that well interior diameter changes greatly or gradient is larger, to improve cementing quality.Existing elastic centralizer is woven by two back-up rings and several arc muscle or welded together, so its firmness affects by welding quality, may think that welding quality is bad and damage in using; Welded construction makes the bearing capacity of elastic centralizer righting strip reduce, and can not guarantee casing centralization; Product reliability is poor, and precision is low.
Utility model content
Technical problem to be solved in the utility model is, provide a kind of and fasten Integral elastic centralizer, solving existing elastic centralizer affects greatly by welding quality, and uprighting force is not enough; Change centralizer installation form, make centralizer can be fixed on a certain sleeve pipe and whether go up descend play.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of fastening Integral elastic centralizer, the many arc righting strips comprising two back-up rings at two ends and be connected between two back-up rings, described back-up ring is two semicircular ring, two semicircular ring one end Fixed hinges link together, the other end of back-up ring waits until the hinge of fastening in advance, insert hinge to be fastened by pin axle and be movably connected, arc righting strip inside-out bends to arc surface, and described arc righting strip and two back-up rings are integrally formed.
The back-up ring at described two ends is provided with the stop top wire hole preventing elastic centralizer installation stop jackscrew of upper and lower play on sleeve pipe.
Described back-up ring and the arc righting strip of Duo Gen are by the overall stamping forming structure of a block plate.
Described arc righting strip is 4-6 root.
The beneficial effects of the utility model are: have free-open-close, the feature that uprighting force is strong.Due to its reasonable in design, not only reliability high and also can free-open-close connect, convenient and swift.
Accompanying drawing explanation
Fig. 1 is that the utility model fastens Integral elastic centralizer structure figure;
In figure, 1. wait until the hinge of fastening in advance; 2. back-up ring; 3. arc righting strip; 4. stop top wire hole; 5. Fixed hinge.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
As shown in Figure 1, fastening Integral elastic centralizer of the present utility model, comprise two back-up rings 2 at two ends and be connected to many arc righting strips 3 between two back-up rings, described back-up ring 2 is two semicircular ring, two semicircular ring one end Fixed hinges 5 link together, the other end of back-up ring waits until the hinge 1 of fastening in advance, insert hinge to be fastened by pin axle 6 and be movably connected, arc righting strip 3 inside-out bends to arc surface, and described arc righting strip 3 and two back-up rings 2 are integrally formed.
The back-up ring 2 at described two ends is provided with the stop top wire hole 4 preventing elastic centralizer installation stop jackscrew of upper and lower play on sleeve pipe.
Described back-up ring 2 and the arc righting strip of Duo Gen 3 are by the overall stamping forming structure of a block plate.
Described arc righting strip 3 is 4-6 root.
The utility model strikes out two semi-circular shape by two pieces of spring steel plate entirety, and wherein every two hollow outs are by one righting strip interval; Every root righting strip inside-out is bent into circular arc structure, is used for increasing the uprighting force of centralizer; Back-up ring two ends are converted into hinge, are linked together by two semicircular ring one end Fixed hinges; The other end of back-up ring waits until the hinge of fastening in advance, links together during site operation with connecting pin, and meeting can the function of free-open-close and connection, convenient and swift; Two back-up ring increases stop top wire hole, can optionally centralizer is fixed on sleeve pipe, prevent centralizer upper and lower play on sleeve pipe.Due to its reasonable in design, not only reliability high and also can free-open-close connect, convenient and swift.
The overall centralizer of the utility model fastening type achieves the arc muscle of centralizer from structure design and two ends back-up ring is stamping forming overall structure, and good toughness, uprighting force are strong.In the back-up ring of two ends, add hinge and stop top wire hole, meeting centralizer can the ability of free-open-close, and can fix jackscrew by two ends and prevent the upper and lower play of centralizer; The utility model structure is simple, and easy to connect, righting intensity is high, is easy to promote.
In sum, content of the present utility model is not limited in the above-described embodiment, knowledgeable people in same area can propose other embodiment easily within technological guidance's thought of the present utility model, but this embodiment is all included within scope of the present utility model.
Claims (4)
1. one kind fastens Integral elastic centralizer, comprise two back-up rings (2) being positioned at two ends and the many arc righting strips (3) be connected between two back-up rings, it is characterized in that, described back-up ring (2) is two semicircular ring, two semicircular ring one end Fixed hinge (5) link together, the other end of back-up ring waits until the hinge (1) of fastening in advance, insert hinge to be fastened by pin axle (6) and be movably connected, arc righting strip (3) inside-out bends to arc surface, described arc righting strip (3) and two back-up rings (2) are integrally formed.
2. fastening Integral elastic centralizer according to claim 1, is characterized in that, the back-up ring (2) at described two ends is provided with the stop top wire hole (4) preventing elastic centralizer installation stop jackscrew of upper and lower play on sleeve pipe.
3. fastening Integral elastic centralizer according to claim 1, is characterized in that, described back-up ring (2) and many arc righting strips (3) are by the overall stamping forming structure of a block plate.
4. fastening Integral elastic centralizer according to claim 1, is characterized in that, described arc righting strip (3) is 4-6 root.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520138126.5U CN204511330U (en) | 2015-03-11 | 2015-03-11 | A kind of fastening Integral elastic centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520138126.5U CN204511330U (en) | 2015-03-11 | 2015-03-11 | A kind of fastening Integral elastic centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204511330U true CN204511330U (en) | 2015-07-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520138126.5U Expired - Fee Related CN204511330U (en) | 2015-03-11 | 2015-03-11 | A kind of fastening Integral elastic centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204511330U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178883A (en) * | 2015-11-03 | 2015-12-23 | 北京泓宇恒业科技发展有限公司 | Integrated elastic centralizer |
| CN106917593A (en) * | 2017-04-27 | 2017-07-04 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of sleeve outer wall anti-corrosion rigid centralizer and its installation application |
| CN108131105A (en) * | 2018-02-08 | 2018-06-08 | 大庆宏富来电气设备制造有限公司 | The oil pumping rod centering device of easy disassembly |
-
2015
- 2015-03-11 CN CN201520138126.5U patent/CN204511330U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178883A (en) * | 2015-11-03 | 2015-12-23 | 北京泓宇恒业科技发展有限公司 | Integrated elastic centralizer |
| CN106917593A (en) * | 2017-04-27 | 2017-07-04 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of sleeve outer wall anti-corrosion rigid centralizer and its installation application |
| CN106917593B (en) * | 2017-04-27 | 2023-04-07 | 中国石油天然气集团有限公司 | Rigid centralizer for corrosion prevention of outer wall of casing and installation application of rigid centralizer |
| CN108131105A (en) * | 2018-02-08 | 2018-06-08 | 大庆宏富来电气设备制造有限公司 | The oil pumping rod centering device of easy disassembly |
| CN108131105B (en) * | 2018-02-08 | 2023-11-14 | 大庆恒驰电气有限公司 | Sucker rod centralizer convenient to disassemble and assemble |
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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: 20150729 Termination date: 20170311 |
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| CF01 | Termination of patent right due to non-payment of annual fee |