CN202300232U - Valve-type sucker rod centering device - Google Patents
Valve-type sucker rod centering device Download PDFInfo
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- CN202300232U CN202300232U CN2011204381593U CN201120438159U CN202300232U CN 202300232 U CN202300232 U CN 202300232U CN 2011204381593 U CN2011204381593 U CN 2011204381593U CN 201120438159 U CN201120438159 U CN 201120438159U CN 202300232 U CN202300232 U CN 202300232U
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- wiper block
- centering device
- piece
- resisting
- split
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Abstract
The utility model discloses a valve-type sucker rod centering device and relates to a device for mechanical oil extraction in an oil field, wherein the valve-type sucker rod centering device comprises at least two support shafts, an upper centering block component and a lower centering block component; each support shaft is respectively provided with a rolling device; the upper centering block component comprises at least two upper centering blocks; the lower centering component comprises lower centering blocks the number of which is equal to that of the upper centering blocks; each upper centering block is connected with the corresponding lower centering block respectively through a support; each rolling block is respectively arranged in the corresponding support; and two ends of each support shaft are supported on the corresponding support. The valve-type sucker rod centering device provided by the utility model is arranged in an oil pipe, can be installed at any position on a sucker rod body when in use; when in oil extraction, the rolling devices are in contact with the inner wall of the oil pipe so as to form supporting points, thus the sucker rod is not in contact with the oil pipe, and the friction between the sucker rod and the oil pipe is reduced; and after the rolling devices of the centering device are invalid, the centering blocks replace the rolling devices to be in friction with the oil pipe, and the service life of the oil pipe of the sucker rod is prolonged.
Description
Technical field
The utility model relates to the device that a kind of oil field machinery oil is used, and is a kind of split-type oil pumping rod centering device.
Background technology
Along with the increase of sucker rod pumping working system, the moisture rod and tube partial-wear problem that increases sucker-rod pumping in intensification, oil field that pump is hung, become very important problem of petroleum production engineering.Done number of research projects to the side-abrasion of rod string problem both at home and abroad for many years; The main method that at present solves sucker rod partial wear remains utilizes centralizer; Centralizer major part commonly used at present mainly by screwed connection at the sucker rod two ends; Can to a certain degree make sucker rod placed in the middle like this, but well not deal with problems.
Summary of the invention
The purpose of the utility model is to take out optional position on the bar body in order to overcome the deficiency of prior art, a kind of split-type oil pumping rod centering device to be provided, can being installed in, rationally distribute install after, alleviate the eccentric wear between the sucker rod and oil pipe in the oil recovery process.
The purpose of the utility model is achieved in that the split-type oil pumping rod centering device, comprises at least two back shafts, and tourelle is set respectively on the every back shaft; Said centralizer also comprises wiper block assembly and following wiper block assembly; Last wiper block assembly comprises wiper block at least two lobes; Following wiper block assembly comprises the following wiper block that equates with last wiper block quantity; Wiper block is connected through support respectively between the wiper block down with corresponding on each, and said each tourelle is separately positioned in the corresponding support, and the two ends of every back shaft are supported on respectively on the corresponding support.
The utility model is arranged in the oil pipe; Can be installed in the optional position of sucker rod body during use, during oil recovery, tourelle contacts with the inwall of oil pipe and forms fulcrum; Sucker rod is not contacted with oil pipe; With the sliding friction between sucker rod and the oil pipe, become the rolling friction between the tourelle of oil pipe and centralizer, thereby reduced the friction between sucker rod and the oil pipe.And after the centralizer tourelle lost efficacy; Wiper block by the high molecular abrasion-proof material substitutes tourelle and oil pipe friction; Friction between tourelle and the oil pipe is changed into the friction between the wiper block of oil pipe and high molecular abrasion-proof material, prolonged the application life of sucker rod oil pipe.
In order to strengthen the up and down intensity of wiper block and support, said each go up wiper block and corresponding support, following wiper block disjunctor setting.
Wiper block comprises respectively that disjunctor is provided with on each of the utility model outer wear-resistingly goes up the wear-resisting piece of going up in piece and the arc, and outer wear-resisting upper end of going up piece is the triangle conical surface or inclined-plane, and the outer wear-resisting upward surface of piece is an arc; Said on each outer wear-resisting the going up on the piece of wiper block the fixed strip through hole is set respectively, place respectively in the fixed strip through hole on each same on fixed strip, last fixed strip passes through bolton; Said each down wiper block comprise wear-resisting piece down in outer wear-resisting piece down that disjunctor is provided with and the arc respectively, the outer wear-resisting lower end of piece down is the triangle conical surface or inclined-plane, outer wear-resisting under the surface of piece be arc; The outer wear-resisting of said each following wiper block is provided with down the fixed strip through hole respectively on the piece down, and each places together fixed strip once respectively in the fixed strip through hole down, and following fixed strip passes through bolton.The wiper block front end of the utility model, the terminal triangular pyramidal structure that adopts, the resistance of oil stream can also be cleared up the wax of tube inner wall on the tourelle course of centralizer in advance when decapacitation reduced to recover the oil.
Each support of the utility model comprises two high-strength panels respectively.First kind of structure of support directly is made up of two high-strength panels.
Receive force intensity in order to increase, said each support comprises also that to projecting inward arc junction plate two high-strength panels are provided with corresponding arc junction plate disjunctor.Second kind of structure of support is made up of two high-strength panels and arc junction plate.
The same, the two ends up and down of said every arc junction plate disjunctor respectively are provided with extension plate, and every extension plate is separately positioned on corresponding inboard of going up wiper block, following wiper block.The third structure of support is made up of two high-strength panels, arc junction plate and extension plate.
The utility model can be with hollow out is set respectively on the support at each tourelle place of the centralizer that is installed in the oil well paraffinication section; Hollow out can reduce tourelle by the viscosity resistance between wax parcel back and the support both sides; Thereby reduce roller by the dead probability that lost efficacy of wax bag, prolong the application life of centralizer.
In order to guarantee that centralizer connects smooth and easy passing through at oil pipe, said on each the upper end of wiper block first chamfering is set respectively, each is provided with second chamfering respectively in the lower end of wiper block down.
In order to increase abrasion resistance, said on each wiper block connect respectively outward and go up wearing layer, the upper end of wearing layer is provided with the 3rd chamfering respectively on each; Wiper block connects wearing layer down outward respectively under each, and each is provided with the 4th chamfering respectively in the lower end of wearing layer down.Chamfering can guarantee that centralizer connects smooth and easy passing through at oil pipe simultaneously.
The tourelle of the utility model is roller or bearing.
Description of drawings
Fig. 1 is first kind of structural representation of the utility model.
Fig. 2 be among Fig. 1 A-A to view.
Fig. 3 is second kind of structural representation of the utility model.
Fig. 4 is the third structural representation of the utility model.
Fig. 5 is the 4th kind of structural representation of the utility model.
Fig. 6 be among Fig. 5 B-B to view.
Fig. 7 is the 5th kind of structural representation of the utility model.
Among the figure, wiper block assembly on 1, the last wiper block of 1-1, the outer wear-resisting piece of going up of 1-1-1, wear-resisting piece, 2 rollers gone up in the 1-1-2; 3 back shafts, 4 sucker rods, fixed strip on 5, fixed strip through hole on 6,7 supports, 7-1 high-strength panel; 7-2 arc junction plate, 7-3 extension plate, 8 hollow outs, 9 times wiper block assemblies, wiper block under the 9-1; The outer wear-resisting piece down of 9-1-1, wear-resisting piece down in the 9-1-2,10 times fixed strip through holes, 11 times fixed strips, wearing layer on 12; 13 times wearing layers, 14 first chamferings, 15 second chamferings, 16 the 3rd chamferings, 17 the 4th chamferings.
The specific embodiment
Embodiment 1
Like Fig. 1, shown in 2; Be first kind of split-type oil pumping rod centering device; Comprise the last wiper block assembly 1 and following wiper block assembly 9 processed by the high molecular abrasion-proof material, last wiper block assembly 1 comprises wiper block 1-1 on the pintongs, and the upper end of wiper block 1-1 is provided with first chamfering 14 respectively on each.Wiper block 1-1 comprises the wear-resisting piece 1-1-2 of going up in the outer wear-resisting piece 1-1-1 of going up that disjunctor is provided with and the arc respectively on each, and outer wear-resisting upper end of going up piece 1-1-1 is the triangle conical surface or inclined-plane, and the outer wear-resisting upward surface of piece 1-1-1 is an arc.Outer wear-resisting going up on the piece 1-1-1 is provided with fixed strip through hole 6 respectively, places the same fixed strip 5 of going up on each in the fixed strip through hole 6 respectively, and last fixed strip 5 is through bolton, and wiper block 1-1 is installed in outside the sucker rod 4 through last fixed strip 5 on the pintongs.
Following wiper block assembly 9 comprises wiper block 9-1 under the pintongs, and each is provided with second chamfering 15 respectively in the lower end of wiper block 9-1 down.Each down wiper block 9-1 comprise wear-resisting piece 9-1-2 down in outer wear-resisting piece 9-1-1 down that disjunctor is provided with and the arc respectively, the outer wear-resisting lower end of piece 9-1-1 down is the triangle conical surface or inclined-plane, outer wear-resisting under the surface of piece 9-1-1 be arc.Each is outer wear-resistingly to be provided with down fixed strip through hole 10 respectively on the piece 9-1-1 down, and each places respectively in the fixed strip through hole 10 down with fixed strip 11 once, and following fixed strip 11 is through bolton, and wiper block 9-1 is installed in outside the sucker rod 4 through following fixed strip 11 under the pintongs.
Wiper block 1-1 is connected through support 7 respectively between the wiper block 9-1 down with corresponding on each, and each support 7 comprises two high-strength panel 7-1 respectively.Two rollers 2 are set respectively in each support 7, place a back shaft 3 in each roller 2 respectively, the two ends of every back shaft 3 are supported on respectively on the corresponding high-strength panel 7-1.On the high-strength panel 7-1 at each roller 2 place hollow out 8 is set respectively.
As shown in Figure 3; Be second kind of split-type oil pumping rod centering device; Wiper block 1-1 connects upward wearing layer 12 outward respectively on each steel; The upper end of wearing layer 12 is provided with the 3rd chamfering 16 respectively on each, and wiper block 9-1 connects wearing layer 13 down outward respectively under each steel, and each is provided with the 4th chamfering 17 respectively in the lower end of wearing layer 13 down.All the other structures are with embodiment 1.
As shown in Figure 4, be the third split-type oil pumping rod centering device, wiper block 9-1 disjunctor setting under wiper block 1-1 and corresponding support 7, the steel on each steel.Wiper block 1-1 connects upward wearing layer 12 outward respectively on each, and the upper end of wearing layer 12 is provided with the 3rd chamfering 16 respectively on each, and wiper block 9-1 connects wearing layer 13 down outward respectively under each, and each is provided with the 4th chamfering 17 respectively in the lower end of wearing layer 13 down.All the other structures are with embodiment 1.
Like Fig. 5, shown in 6; Be the 4th kind of split-type oil pumping rod centering device; Two high-strength panel 7-1 that each support 7 comprises respectively that disjunctor is provided with and to projecting inward arc junction plate 7-2, two high-strength panel 7-1 connect through corresponding arc junction plate 7-2 respectively.All the other structures are with embodiment 1.
As shown in Figure 7; Be the 5th kind of split-type oil pumping rod centering device; Each support 7 comprises two high-strength panel 7-1 that disjunctor is provided with respectively, to projecting inward arc junction plate 7-2 and extension plate 7-3; Two high-strength panel 7-1 connect through corresponding arc junction plate 7-2 respectively; The two ends up and down of every arc junction plate 7-2 disjunctor respectively are provided with extension plate 7-3, and the extension plate 7-3 of every arc junction plate 7-2 upper end is separately positioned between corresponding wiper block 1-1 of going up and the sucker rod 4, and the extension plate 7-3 of every arc junction plate 7-2 lower end is separately positioned between corresponding wiper block 9-1 down and the sucker rod 4.All the other structures are with embodiment 1.
Claims (1)
1. the split-type oil pumping rod centering device comprises at least two back shafts, and tourelle is set respectively on the every back shaft; It is characterized in that: said centralizer also comprises wiper block assembly and following wiper block assembly; Last wiper block assembly comprises wiper block at least two lobes; Following wiper block assembly comprises the following wiper block that equates with last wiper block quantity; Wiper block is connected through support respectively between the wiper block down with corresponding on each, and said each tourelle is separately positioned in the corresponding support, and the two ends of every back shaft are supported on respectively on the corresponding support.
2, split-type oil pumping rod centering device according to claim 1 is characterized in that: said on each wiper block with corresponding support, the wiper block disjunctor is provided with down.
3, split-type oil pumping rod centering device according to claim 1; It is characterized in that: said wiper block comprises respectively that disjunctor is provided with on each outer wear-resistingly goes up wear-resisting last piece in piece and the arc; Outer wear-resisting upper end of going up piece is the triangle conical surface or inclined-plane, and outer wear-resisting surface of going up piece is an arc; Said on each outer wear-resisting the going up on the piece of wiper block the fixed strip through hole is set respectively, place respectively in the fixed strip through hole on each same on fixed strip, last fixed strip passes through bolton; Said each down wiper block comprise wear-resisting piece down in outer wear-resisting piece down that disjunctor is provided with and the arc respectively, the outer wear-resisting lower end of piece down is the triangle conical surface or inclined-plane, outer wear-resisting under the surface of piece be arc; The outer wear-resisting of said each following wiper block is provided with down the fixed strip through hole respectively on the piece down, and each places together fixed strip once respectively in the fixed strip through hole down, and following fixed strip passes through bolton.
4, split-type oil pumping rod centering device according to claim 1 is characterized in that: said each support comprises two high-strength panels respectively.
5, split-type oil pumping rod centering device according to claim 4 is characterized in that: said each support comprises also that to projecting inward arc junction plate two high-strength panels are provided with corresponding arc junction plate disjunctor.
6, split-type oil pumping rod centering device according to claim 5 is characterized in that: the two ends up and down of said every arc junction plate disjunctor respectively are provided with extension plate, and every extension plate is separately positioned on corresponding inboard of going up wiper block, following wiper block.
7, split-type oil pumping rod centering device according to claim 1 is characterized in that: hollow out is set respectively on the support at said each tourelle place.
8, split-type oil pumping rod centering device according to claim 1 is characterized in that: said on each the upper end of wiper block first chamfering is set respectively, each is provided with second chamfering respectively in the lower end of wiper block down.
9, split-type oil pumping rod centering device according to claim 1 is characterized in that: said on each wiper block connect respectively outward and go up wearing layer, the upper end of wearing layer is provided with the 3rd chamfering respectively on each; Wiper block connects wearing layer down outward respectively under each, and each is provided with the 4th chamfering respectively in the lower end of wearing layer down.
10, split-type oil pumping rod centering device according to claim 1 is characterized in that: said tourelle is roller or bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204381593U CN202300232U (en) | 2011-11-08 | 2011-11-08 | Valve-type sucker rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204381593U CN202300232U (en) | 2011-11-08 | 2011-11-08 | Valve-type sucker rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202300232U true CN202300232U (en) | 2012-07-04 |
Family
ID=46369154
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204381593U Expired - Fee Related CN202300232U (en) | 2011-11-08 | 2011-11-08 | Valve-type sucker rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202300232U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775005A (en) * | 2014-01-14 | 2014-05-07 | 河南理工大学 | Sucker rod anti-eccentric grinding device for coal-bed gas well |
| CN106837216A (en) * | 2016-12-28 | 2017-06-13 | 中国石油天然气集团公司 | For the eccentric abrasion prevention mud-scraping apparatus of carbon-fiber continuous rod |
-
2011
- 2011-11-08 CN CN2011204381593U patent/CN202300232U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103775005A (en) * | 2014-01-14 | 2014-05-07 | 河南理工大学 | Sucker rod anti-eccentric grinding device for coal-bed gas well |
| CN106837216A (en) * | 2016-12-28 | 2017-06-13 | 中国石油天然气集团公司 | For the eccentric abrasion prevention mud-scraping apparatus of carbon-fiber continuous rod |
| CN106837216B (en) * | 2016-12-28 | 2018-12-25 | 中国石油天然气集团公司 | Eccentric abrasion prevention mud-scraping apparatus for carbon-fiber continuous rod |
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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: 20120704 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |