CN203729909U - Eccentric-wear-resisting rotating supporting device - Google Patents
Eccentric-wear-resisting rotating supporting device Download PDFInfo
- Publication number
- CN203729909U CN203729909U CN201420116295.4U CN201420116295U CN203729909U CN 203729909 U CN203729909 U CN 203729909U CN 201420116295 U CN201420116295 U CN 201420116295U CN 203729909 U CN203729909 U CN 203729909U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- screw thread
- rotating supporting
- rotary support
- support cover
- 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 - Lifetime
Links
- 238000005452 bending Methods 0.000 abstract description 6
- 239000003129 oil well Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 230000002929 anti-fatigue Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
Landscapes
- Sliding-Contact Bearings (AREA)
Abstract
The utility model relates to an eccentric-wear-resisting rotating supporting device. The eccentric-wear-resisting rotating supporting device comprises a connecting rod and a rotating supporting sleeve, wherein the upper part of the connecting rod is provided with upper oil push rod threads, the lower part of the connecting rod is provided with lower oil push rod threads, the position, below the upper oil push rod threads, of the upper part of the connecting rod is provided with upper outer threads, the upper part of the rotating supporting sleeve is provided with upper inner threads, the upper inner threads are matched with the upper outer threads, the rotating supporting sleeve sleeves the connecting rod, the upper inner threads on the upper part of the rotating supporting sleeve run through the upper outer threads on the upper part of the connecting rod, the upper inner threads are arranged above the upper outer threads, the connecting rod is provided with a reducing section, so that an annular passage is formed between the connecting rod and the rotating supporting sleeve, the rotating supporting sleeve is provided with an upper communication groove and a lower communication groove, the rotating supporting sleeve can rotate, the entire surface is abraded, the eccentric wear problem of a sucker rod and an oil pipe caused by the bending and inclination of the sucker rod in the oil pipe can be solved, and the economic benefit is remarkable.
Description
Technical field
The utility model relates to the underground equipment that oil pumping in oil fields is used, and is a kind of anti-eccentric wear rotating supporting device.
Background technology
In sucker-rod pumping system, no matter be straight well or inclined shaft, R a T is all relative motion in contact, therefore, between sucker rod and oil pipe, exist inevitable wearing and tearing, particularly deep-well and inclined shaft, sucker rod is easy to bending in oil pipe, because rod collar diameter and tube inner wall diameter differ larger, little with tube inner wall contact area, cause contact large, there is the problem of serious rod collar eccentrically worn tubing, after producing eccentric wear, oil pipe and sucker rod can not be used, cause oil well operation, oil well repair free period is short, increase operating cost, increase rod tube consumption, the oil well off-time is many, reduce crude output.In order to address this problem, oil field has been used oil pumping rod centering device, as Chinese patent 200920282043.8 " proof-wear sucker rod centralising device ", centralizer body diameter can increase, and large with the contact area of oil pipe, contact is little, can alleviate certain wearing and tearing, its centralizer body can not rotate, and only some participates in wearing and tearing, and its application life is still undesirable, and be integral type structure,, easily there is machining damage in processing difficulties, causes fatigue fracture.
Summary of the invention
The purpose of this utility model is a kind of anti-eccentric wear rotating supporting device of design, increases long service life, solves sucker rod, oil pipe eccentric wear appear in sucker rod problem in the bending of oil pipe internal cause, inclination, extends the oil well production cycle.
The purpose of this utility model is achieved in that and comprises connecting rod, rotary support cover, upper sucker rod screw thread is arranged at the top of connecting rod, lower sucker rod screw thread is arranged at bottom, there is upper external screw thread on the top of connecting rod under upper sucker rod screw thread, upper internal thread is arranged at the top of rotary support cover, upper internal thread and upper external screw thread match, rotary support cover is sleeved on connecting rod, upper internal thread external thread rotary mistake from connecting rod top on rotary support cover top, make internal thread on upper external screw thread, on connecting rod, there is undergauge section, make to form circular passage between connecting rod and rotary support cover, rotary support has put first line of a couplet groove and second line of a couplet groove, first line of a couplet groove, second line of a couplet groove is by circular passage UNICOM, lower external screw thread is arranged on lower sucker rod screw thread at the bottom of connecting rod, lower internal thread is arranged at the bottom of rotary support cover, lower external screw thread and lower internal thread match, lower internal thread external thread rotary mistake from connecting rod bottom of rotary support cover bottom, make lower internal thread on lower external screw thread.
The beneficial effects of the utility model are: rotary support cover can rotate, whole surface all participates in wearing and tearing, wear surface can be lengthened working hours after disperseing, increase the oil well production cycle, the utility model is split-type structural, processing is simple, the connecting rod of bearing tension is complete cylindrical, supporting capacity is strong, antifatigue, can further extend production cycle of oil well, therefore, the utility model can solve sucker rod in the bending of oil pipe internal cause, inclination and occur the problem of sucker rod, oil pipe eccentric wear, has significant economic benefit.
Brief description of the drawings
Accompanying drawing Fig. 1 is the structure chart of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, embodiment of the present utility model comprises connecting rod 2, rotary support cover 8, upper sucker rod screw thread 1 is arranged at the top of connecting rod 2, lower sucker rod screw thread 12 is arranged at bottom, upper external screw thread 4 is arranged under upper sucker rod screw thread 1 at the top of connecting rod 2, upper internal thread 3 is arranged at the top of rotary support cover 8, upper internal thread 3 matches with upper external screw thread 4, rotary support cover 8 is sleeved on connecting rod 2, upper internal thread 3 external screw thread 4 from connecting rod 2 tops that rotary support overlaps 8 tops revolved, make internal thread 3 on upper external screw thread 4, on connecting rod 2, there is undergauge section 7, make to form circular passage 6 between connecting rod 2 and rotary support cover 8, on rotary support cover 8, there are first line of a couplet groove 5 and second line of a couplet groove 9, first line of a couplet groove 5, second line of a couplet groove 9 is by circular passage 6 UNICOMs.Lower external screw thread 11 is arranged on lower sucker rod screw thread 12 at the bottom of connecting rod 2, lower internal thread 10 is arranged at the bottom of rotary support cover 8, lower external screw thread 11 matches with lower internal thread 10, lower internal thread 10 external screw thread 11 from connecting rod 2 bottoms that rotary support overlaps 8 bottoms revolved, make lower internal thread 10 on lower external screw thread 11, this feature makes rotary support cover 8 better be limited in, on connecting rod 2, becoming reliable entirety.First line of a couplet groove 5 is uniformly distributed 3-4, and second line of a couplet groove 9 is uniformly distributed 3-4, can ensure that liquid circulation is smooth, and can ensure its intensity.
Liquid stream flows away from second line of a couplet groove 9, circular passage 6, first line of a couplet groove 5, therefore, the external diameter of rotary support cover 8 can strengthen, make it be slightly smaller than be lowered to pipe aperture, by rod string righting, reduce bending, so, the utility model solves sucker rod, oil pipe eccentric wear appear in sucker rod problem in the bending of oil pipe internal cause, inclination, extends the oil well production cycle.
Claims (1)
1. an anti-eccentric wear rotating supporting device, comprise connecting rod (2), rotary support cover (8), upper sucker rod screw thread (1) is arranged at the top of connecting rod (2), lower sucker rod screw thread (12) is arranged at bottom, it is characterized in that: upper external screw thread (4) is arranged under upper sucker rod screw thread (1) at the top of connecting rod (2), upper internal thread (3) is arranged at the top of rotary support cover (8), upper internal thread (3) matches with upper external screw thread (4), rotary support cover (8) is sleeved on connecting rod (2), the upper internal thread (3) on rotary support cover (8) top external screw thread (4) from connecting rod (2) top revolved, make internal thread (3) on upper external screw thread (4), on connecting rod (2), there is undergauge section (7), make to form circular passage (6) between connecting rod (2) and rotary support cover (8), on rotary support cover (8), there are first line of a couplet groove (5) and second line of a couplet groove (9), first line of a couplet groove (5), second line of a couplet groove (9) is by circular passage (6) UNICOM, lower external screw thread (11) is arranged on lower sucker rod screw thread (12) at the bottom of connecting rod (2), lower internal thread (10) is arranged at the bottom of rotary support cover (8), lower external screw thread (11) matches with lower internal thread (10), the lower internal thread (10) of rotary support cover (8) bottom external screw thread (11) from connecting rod (2) bottom revolved, make lower internal thread (10) on lower external screw thread (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116295.4U CN203729909U (en) | 2014-03-15 | 2014-03-15 | Eccentric-wear-resisting rotating supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420116295.4U CN203729909U (en) | 2014-03-15 | 2014-03-15 | Eccentric-wear-resisting rotating supporting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203729909U true CN203729909U (en) | 2014-07-23 |
Family
ID=51199989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420116295.4U Expired - Lifetime CN203729909U (en) | 2014-03-15 | 2014-03-15 | Eccentric-wear-resisting rotating supporting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203729909U (en) |
-
2014
- 2014-03-15 CN CN201420116295.4U patent/CN203729909U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204163964U (en) | Ring valve type hydraulic feedback oil | |
| CN203729909U (en) | Eccentric-wear-resisting rotating supporting device | |
| CN102337851A (en) | Oil production wellhead device capable of rotating automatically | |
| CN201321967Y (en) | Rotating plunger oil-well pump with actuating cylinder | |
| CN107956455B (en) | Load reducing device of oil pumping unit | |
| CN201560722U (en) | Anti-bias wear oil pumping rod centralizer | |
| CN202659218U (en) | Oil lubrication oil-pumping device | |
| CN202073508U (en) | Positioning eccentric wear prevention device | |
| CN202937195U (en) | Sucker rod universal joint | |
| CN203627168U (en) | Pump cylinder reinforced small pump diameter whole cylinder oil well pump | |
| CN202073755U (en) | Deep well oil pump suitable for highly-deviated well | |
| CN206592107U (en) | Down-hole oil production elastic expansion plunger | |
| CN203161113U (en) | Sucker rod eccentric wear preventing device | |
| CN205025378U (en) | Can lubricate sucker rod wear proof device | |
| CN202467781U (en) | Oil production device | |
| CN204344003U (en) | Oil well pump swimming type eccentric abrasion prevention device | |
| CN202732297U (en) | Rodless hydraulic feedback oil pump | |
| CN203271613U (en) | Joint with variable diameters and high wear resistance of oil well fracturing pipeline | |
| CN205532348U (en) | Install oily device that gathers on rod string | |
| CN203051098U (en) | Expanding and shrinking barrel piston self-rotating centering oil-well pump | |
| CN202348155U (en) | Reusable follow-up wax removal device for oil pumping well tube poles | |
| CN201924843U (en) | Magnetic supporting sucker rod centering device | |
| CN205605138U (en) | Sucker rod abrasionproof centralizer | |
| CN201246117Y (en) | Bias-wearing-proof eddy flow centralizer | |
| CN101440798A (en) | Movable barrel type rotary plunger oil well pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140723 |