CN201843532U - Positioning anti-eccentric wear device - Google Patents
Positioning anti-eccentric wear device Download PDFInfo
- Publication number
- CN201843532U CN201843532U CN2010206114465U CN201020611446U CN201843532U CN 201843532 U CN201843532 U CN 201843532U CN 2010206114465 U CN2010206114465 U CN 2010206114465U CN 201020611446 U CN201020611446 U CN 201020611446U CN 201843532 U CN201843532 U CN 201843532U
- Authority
- CN
- China
- Prior art keywords
- device body
- centering sleeve
- main body
- sucker rod
- supporting positive
- 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
- Sliding-Contact Bearings (AREA)
Abstract
The utility model relates to a positioning anti-eccentric wear device which comprises a device body and a centering sleeve; the device body is made of metal material, and the centering sleeve is made of non-metal material; the centering sleeve is fusion cast outside the device body; the upper part of the device body is provided with a sucker rod thread, and the lower part of the device body is also provided with the sucker rod thread; a plurality of liquid through tanks are arranged on the outer surface of the centering sleeve; the diameters of both ends of the device body are bigger and the diameter of the middle part of the device body is smaller; reducing shoulders on both ends of the device body axially position the centering sleeve; the small-diameter section of the middle part of the device body is provided with a plurality of radial positioning grooves; the centering sleeve is fusion cast in the radial positioning grooves; the radial positioning grooves position the centering sleeve in the radial direction; the centering sleeve is provided with the plurality of liquid through tanks, so that the outer diameter of the centering sleeve can be increased, a sucker rod can be centered and is prevented from bending, the friction between the sucker rod and an oil pipe is reduced, the device body can position the centering sleeve in the axial direction and the radial direction, the centering sleeve does not fall off, thereby the service life is long, the work cycle of an oil well can be prolonged, and economic benefits are improved.
Description
Technical field
The utility model is the device of using in the oil field pumping well, is the anti-eccentric wear device in a kind of location.
Background technology
In the oil pumping system of oil field, R a T has relative contact movement, certainly existing between sucker rod and the oil pipe and rubbing, and the wearing and tearing of sucker rod, oil pipe also just inevitably occurred.Particularly deep-well and inclined shaft, sucker rod is easy to bending in oil pipe, the problem that serious sucker rod partial wear oil pipe occurs, after producing eccentric wear oil pipe and sucker rod can not be used, cause the oil well operation, oil well repair free period is short, increase operating cost, increase rod tube consumption, the oil well off-time is many, reduces crude output.The normal problem that adopts oil pumping rod centering device to solve oil pipe and sucker rod partial wear on the oil recovery technique, as Chinese patent application 200420029609.3 abrasion-proof sucker rod box cuplings, this rod collar is in order to prevent throttling, external diameter can not be excessive, so there is not centralizing function, can not prevent that sucker rod is crooked in oil pipe, the problem of sucker rod partial wear oil pipe still occur, the oil well production cycle is still shorter.
Summary of the invention
The purpose of this utility model is the anti-eccentric wear device in a kind of location of design, makes it have the righting anti-abrasion effect, prolongs the application life of sucker rod, reduces oil well operation number of times.
The purpose of this utility model has been achieved in that main body, supporting positive cover, main body is a metal material, supporting positive cover is nonmetals, the supporting positive cover founding is outside main body, the sucker rod screw thread is arranged at main body top, lower body part has the sucker rod screw thread, there are several to cross liquid bath on the supporting positive cover external surface, the big middle part of diameter, main body two ends diameter is little, main body two ends reducing shoulder axial location supporting positive cover, there are several radial location grooves at reduced diameter section place, main body middle part, and the supporting positive cover founding is in the radial location groove, and the radial location groove is to the supporting positive cover radial location.
The beneficial effects of the utility model are: have several to cross liquid bath on supporting positive cover, after having several to cross liquid bath, the external diameter of supporting positive cover can increase, thereby has the effect of setting upright sucker rod, can prevent rod sag, reduce the friction between sucker rod and the oil pipe, main body to supporting positive cover can be axially, radial location, supporting positive cover can not come off, thereby long service life, can prolong the oil well work period, increase economic efficiency.
Description of drawings
Fig. 1 is a half sectional view of the present utility model.
Fig. 2 is the profile after cutting open from A-A among Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Embodiment of the present utility model has main body 1, supporting positive cover 2, main body 1 is a metal material, the requirement of strength in the time of satisfying oil pumping, and supporting positive cover 2 is nonmetals, select the good material of abrasion resistance for use, supporting positive cover 2 foundings are outside main body 1, and sucker rod screw thread 3 is arranged at main body 1 top, and sucker rod screw thread 6 is arranged at main body 1 bottom, there are several to cross liquid bath 5 on supporting positive cover 2 external surfaces, when being when using in Φ 62 oil pipes at internal diameter, liquid stream passes through from crossing liquid bath 5, and supporting positive cover 2 external diameters can be greater than Φ 56; When being when using in Φ 76 oil pipes at internal diameter, liquid stream passes through from crossing liquid bath 5, and supporting positive cover 2 external diameters can play centralizing function to sucker rod greater than Φ 70.The big middle part of main body 1 two ends diameter diameter is little, main body 1 two ends reducing shoulder axial location supporting positive cover 2, make between supporting positive cover 2 and the main body 1 and can not move axially, there are several radial location grooves 4 at reduced diameter section place, main body 1 middle part, supporting positive cover 2 foundings are 4 li of radial location grooves, 4 pairs of supporting positive cover 2 radial locations of radial location groove make between supporting positive cover 2 and the main body 1 and can not move radially, and supporting positive cover can not come off.
Claims (1)
1. the eccentric wear device is prevented in a location, main body (1) is arranged, supporting positive cover (2), main body (1) is a metal material, supporting positive cover (2) is nonmetals, supporting positive cover (2) founding is outside main body (1), sucker rod screw thread (3) is arranged at main body (1) top, sucker rod screw thread (6) is arranged at main body (1) bottom, it is characterized in that: have several to cross liquid bath (5) on supporting positive cover (2) external surface, the big middle part of diameter, main body (1) two ends diameter is little, main body (1) two ends reducing shoulder axial location supporting positive covers (2), there are several radial location grooves (4) at reduced diameter section place, main body (1) middle part, supporting positive cover (2) founding is in radial location groove (4) lining, and radial location groove (4) is to supporting positive cover (2) radial location.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206114465U CN201843532U (en) | 2010-11-09 | 2010-11-09 | Positioning anti-eccentric wear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206114465U CN201843532U (en) | 2010-11-09 | 2010-11-09 | Positioning anti-eccentric wear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201843532U true CN201843532U (en) | 2011-05-25 |
Family
ID=44038425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206114465U Expired - Fee Related CN201843532U (en) | 2010-11-09 | 2010-11-09 | Positioning anti-eccentric wear device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201843532U (en) |
-
2010
- 2010-11-09 CN CN2010206114465U patent/CN201843532U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201377294Y (en) | Righting abrasion-proof sucker-rod coupling | |
| CN201250618Y (en) | Magnetic support pumping rod centralizer | |
| CN201843532U (en) | Positioning anti-eccentric wear device | |
| CN202073508U (en) | Positioning eccentric wear prevention device | |
| CN201254956Y (en) | Anti-biasing-wear hollow sucker rod | |
| CN201794536U (en) | Wash pipe assembly of top drive drilling equipment | |
| CN201517377U (en) | Centralizer of rod part of sucker rod | |
| CN201031631Y (en) | Rotary corrector for sucker rod | |
| CN201818249U (en) | Positioning anti-eccentric wear device | |
| CN201560722U (en) | Anti-bias wear oil pumping rod centralizer | |
| CN201159057Y (en) | Elastic centralizer | |
| CN201420511Y (en) | Wear-resistant sucker rod coupling | |
| CN201786274U (en) | High wear resistance rotary sucker rod eccentric wear prevention centralizer | |
| CN202483473U (en) | Eccentric-abrasion-proof automatic centering and centralizing device of oil sucking rod | |
| CN202073509U (en) | Pumping rod protector | |
| CN201738833U (en) | Sucker rod coupling | |
| CN103334704B (en) | Can rotation can to revolve round the sun tumbling-type Anti-eccentric wear coupling of sucker rod | |
| CN201972624U (en) | Pumping rod straightening device | |
| CN201924843U (en) | Magnetic supporting sucker rod centering device | |
| CN201874486U (en) | Anti-wearing device for sucker rod | |
| CN201443308U (en) | Device retarding abrasion of pumping rod in oil pipe | |
| CN201428393Y (en) | Anti-friction joint | |
| CN2646368Y (en) | Eccentric proof grinding pair for oil tube and sucker rod | |
| CN202745732U (en) | Low friction resistance sucker rod centralizer | |
| CN208380522U (en) | A kind of righting anti-abrasion sucker rod |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20111109 |