CN2700543Y - Rotary sucker rod coupling sleeve centralizer - Google Patents
Rotary sucker rod coupling sleeve centralizer Download PDFInfo
- Publication number
- CN2700543Y CN2700543Y CN 200420018762 CN200420018762U CN2700543Y CN 2700543 Y CN2700543 Y CN 2700543Y CN 200420018762 CN200420018762 CN 200420018762 CN 200420018762 U CN200420018762 U CN 200420018762U CN 2700543 Y CN2700543 Y CN 2700543Y
- Authority
- CN
- China
- Prior art keywords
- centralizer
- sucker rod
- baffle rings
- centering wheel
- rod coupling
- 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
Links
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model discloses a rotary sucker rod coupling sleeve centralizer, comprising a centering wheel and two axial spacing baffle rings. The two axial spacing baffle rings are arranged at the combination points of the upper and the lower two ends of the sucker rod coupling and the upper and the lower two shoulder end faces of the sucker rod respectively. An inclined convex ridge is arranged on the outer side of the centering wheel. The centering wheel is sheathed on the outer side of the sucker rod coupling, and the centering wheel is provided between the two axial spacing baffle rings. The centering wheel uses the sucker rod coupling as the shaft. The centering wheel moves in the interval formed by the two axial spacing baffle rings. The utility model can make the original sucker rod coupling used continuously, and the cost is below the short joint type centralizer. The centering wheel in the centralizer is limited between the two axial spacing baffle rings. The centering wheel in the centralizer moves in the activity area limited by the two axial spacing baffle rings. When the centering wheel in the centralizer moves up-and-down to and fro, the position is not moved. The centralizer has simple structure and convenient loading and unloading.
Description
Technical field: the utility model relates to the rotary rod collar sleeve centralizer that oil field sucker rod pump mechanical oil well uses.
Background technology: existing centralizer divides two kinds of spigot-and-socket and pipe nipple formulas.The spigot-and-socket centralizer is by two relative socket joints of semicircular body together, is fixed on the structure on the sucker rod, and in sucker rod moved up and down process, this centralizer was because of being fixed together with sucker rod, thereby played centralizing function.But the spigot-and-socket centralizer often causes the centralizer power of holding tightly to descend because the lack of standardization and down-hole high temperature of sucker rod manufacturing dimension makes nylon material generation thermal deformation, produces and scurries a phenomenon, does not have centralizing function; And pipe nipple formula centralizer structure complexity, manufacturing cost height need original box cupling is laid down in installation process, and that lays down formerly handles as scrap iron with rod collar, causes unnecessary waste.
Summary of the invention: goal of the invention of the present utility model is to provide a kind of rotary rod collar sleeve centralizer at the problems referred to above, and this centralizer is not scurried the position, anti-eccentric wear is effective, and cost is low.
The technical scheme that the utility model adopted is: this rotary rod collar sleeve centralizer is made up of righting wheel and two axial limiting baffle rings, two axial limiting baffle rings are separately positioned on rod collar two ends and two sucker rod shoulder end face junctions up and down up and down, there is oblique fin in the righting wheel outside, righting wheel is enclosed within the rod collar outside, is positioned between two axial limiting baffle rings, is axle, movable in the interval that is formed by two axial limiting baffle rings with the rod collar.
The beneficial effects of the utility model: this centralizer is made up of two axial limiting baffle rings and a righting wheel, during use, the axial limiting baffle ring is placed on rod collar and sucker rod shoulder end face junction, righting wheel is enclosed within former in the rod collar outside, formerly can continue to use with rod collar, cost is significantly less than pipe nipple formula centralizer; Righting wheel in the centralizer is limited between two axial limiting baffle rings, and righting wheel is movable in the zone of action that two axial limiting baffle rings limit, and makes righting wheel not scurry the position when pumping; Simple in structure, easy to loading and unloading.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
The specific embodiment:
Embodiment 1: according to shown in Figure 1, rotary rod collar sleeve centralizer is made up of righting wheel 4 and two axial limiting baffle rings 2, axial limiting baffle ring 2 is placed on rod collar 3 two ends and two sucker rod 1 shoulder end face junctions up and down, righting wheel 4 outsides are provided with (the best is 4) equally distributed oblique fin more than 2, be placed between two axial limiting baffle rings 2, the internal diameter of righting wheel 4 is greater than the external diameter of rod collar 3, but making righting wheel 4 serves as the axle left-right rotation with rod collar 3, two axial baffle rings 2 of axial limiting form by two axial limiting baffle rings 2 interval in righting wheel 4 is realized axial limitings, make the righting wheel 4 can be up and down in the interval that forms by two axial limiting baffle rings 2.
Embodiment 2: two axial limiting baffle ring 2 inner radius designs screw thread is arranged, to dwindle the eccentric distance in axial limiting baffle ring 2 centers of circle and sucker rod 1 axle center, play partially anti-and anticreep effect, and the tubular steel frame is set in righting wheel 4, to strengthen the righting wheel impact strength, other is with embodiment 1.
Claims (4)
1, a kind of rotary rod collar sleeve centralizer, it is characterized in that: rotary rod collar sleeve centralizer is made up of righting wheel (4) and two axial limiting baffle rings (2), two axial limiting baffle rings (2) are separately positioned on rod collar (3) two ends and two sucker rods (1) shoulder end face junction up and down up and down, there is oblique fin in righting wheel (4) outside, righting wheel (4) is enclosed within rod collar (3) outside, be positioned between two axial limiting baffle rings (2), righting wheel (4) is an axle with rod collar (3), and is movable in the interval that is formed by two axial limiting baffle rings (2).
2, rotary rod collar sleeve centralizer according to claim 1, it is characterized in that: axial limiting baffle ring (2) inner radius has screw thread.
3, rotary rod collar sleeve centralizer according to claim 1, it is characterized in that: righting wheel is provided with the tubular steel frame in (4).
4, rotary rod collar sleeve centralizer according to claim 1 is characterized in that: there is equally distributed oblique fin more than 2 in righting wheel (4) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018762 CN2700543Y (en) | 2004-04-08 | 2004-04-08 | Rotary sucker rod coupling sleeve centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420018762 CN2700543Y (en) | 2004-04-08 | 2004-04-08 | Rotary sucker rod coupling sleeve centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700543Y true CN2700543Y (en) | 2005-05-18 |
Family
ID=34769438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420018762 Expired - Fee Related CN2700543Y (en) | 2004-04-08 | 2004-04-08 | Rotary sucker rod coupling sleeve centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700543Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359350A (en) * | 2011-10-09 | 2012-02-22 | 中国海洋石油总公司 | Centering device |
-
2004
- 2004-04-08 CN CN 200420018762 patent/CN2700543Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102359350A (en) * | 2011-10-09 | 2012-02-22 | 中国海洋石油总公司 | Centering device |
| CN102359350B (en) * | 2011-10-09 | 2013-09-18 | 中国海洋石油总公司 | Centering device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201241918Y (en) | Combined type one-way bearing | |
| CN205277329U (en) | Sucker rod guide | |
| CN2700543Y (en) | Rotary sucker rod coupling sleeve centralizer | |
| CN204321549U (en) | A kind of frock being applied to shaft universal-joint component and press-fiting | |
| CN202560114U (en) | Efficient prestress thermal insulation pipe | |
| CN202544789U (en) | While-drilling jar | |
| CN206111820U (en) | Bending resistance transmission shaft | |
| CN208916164U (en) | A kind of mechanical suspension arm propeller structure | |
| CN207315893U (en) | Transmission shaft connecting fork | |
| CN207787325U (en) | Unpowered band steel coil cradle | |
| CN202767905U (en) | Eccentric wear resistant sucker-rod string | |
| CN2635895Y (en) | Combined coupling for sucker rod | |
| CN2804366Y (en) | Wear-proof device for oil filling tube of sucker rod | |
| CN1944940B (en) | Hollow guide device for oil pumping rod | |
| CN206901209U (en) | It is segmented dismountable helical axis and conveying worm | |
| CN206449666U (en) | A kind of beetle of boiler tube bundle | |
| CN201095961Y (en) | High performance abrasion-proof centralizer | |
| CN2150329Y (en) | Wax-scraping righting device for oil-pumping well | |
| CN206801491U (en) | A kind of drilling well friction prevention device | |
| CN204645276U (en) | The core-theaded type connected node of a kind of steel pipe and solder sphere | |
| CN206622448U (en) | A kind of carbon fiber built-up welding composite core rod | |
| CN2573654Y (en) | Pumping rod collar rotating centering guide | |
| CN2470576Y (en) | Guide-bar-free hydraulic oil-pumping machine | |
| CN211306151U (en) | Socket spanner | |
| CN209035536U (en) | A kind of drilling rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |