CN2869281Y - Sucker rod centralishing device - Google Patents
Sucker rod centralishing device Download PDFInfo
- Publication number
- CN2869281Y CN2869281Y CN 200520086907 CN200520086907U CN2869281Y CN 2869281 Y CN2869281 Y CN 2869281Y CN 200520086907 CN200520086907 CN 200520086907 CN 200520086907 U CN200520086907 U CN 200520086907U CN 2869281 Y CN2869281 Y CN 2869281Y
- Authority
- CN
- China
- Prior art keywords
- rod
- centralizer
- centralizer body
- fastening
- centering device
- 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
Images
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a pumping rod centralizer, comprising a fastening, a setting screw, a centralizer body and a centralizer rod. The utility is characterized in that the centralizer body is made of new type of carbon fiber reinforced thermoplastic composites, on which a linear or a helical oil duct is manufactured on the outer surface, the inner surface has interference fit with the outer surface of the centralizer rod; one end of the centralizer rod is connected with the small end of the fastening through a thread and positioned and fastened with the setting screw; and another end of the centralizer rod and the big end of the fastening with a thread provided inside are connected with the pumping rod. The utility model has the advantages of corrosion-resistance, wear-resistance, good self-lubricating property, light weight, high shock strength and low cost.
Description
Technical field
The utility model relates to well rod and connects erection device, especially uses the oil pumping rod centering device of material as centralizer body with composite thermoplastic carbon fiber material corrosion-resistant and that self-lubricating property is strong.
Background technology
The sucker rod pumping device is adopted in present oil field more.It drives oil well pump by oil pumper by rod string crude oil is lifted to well head.When oil reservoir distributes apart from ground when dark, there is Korrosionsmedium in rod string very long or the inclination of oil well own or bending and the sucker rod working environment, cause that sucker rod and oil pipe wear and tear, corrosion phenomenon is very serious.Existing oil pumping rod centering device is wear-resistant and poor corrosion resistance, and fatigue life is lower, and the accident that causes rod broken or oil pipe to be worn through happens occasionally.
Summary of the invention
The purpose of this utility model be problem such as overcome that existing oil pumping rod centering device resistance to wears, poor corrosion resistance and fatigue life are low design and develop out a kind of with composite thermoplastic carbon fiber material as the oil pumping rod centering device of centralizer body with material.It is made up of fastening (1), dog screw (2), centralizer body (3) and the centralizer body of rod (4).Centralizer body (3) adopts the hot injection mo(u)lding of a kind of novel carbon fiber thermoplastic composite, and wear-resisting, the corrosion resistance of this material and self-lubricating property is good, in light weight, excellent in cushion effect, cost is low can prolong the application life of centralizer significantly.Centralizer body (3) surface has linear pattern (or screw type) and crosses oil groove, and its cross section is trapezoidal, can improve the crude oil flow performance, helps and takes out function, and convex outer surfaces place and tube inner wall form sliding friction pair.Fastening (1) two ends reducing holds internal thread to be connected with sucker rod greatly; The small end internal thread is connected with the centralizer body of rod (4).Centralizer body (3) bore area and the appearance interference fit of setting upright the body of rod (4), centralizer body (3) two ends are by the boss of the centralizer body of rod (4) and the small end end face axial location of fastening (1), and processing and manufacturing is easy, is convenient to the dismounting maintenance.The centralizer body of rod (4) one ends and fastening (1) small end be by being threaded, and with dog screw (2) positioning and locking.The centralizer body of rod (4) other end is provided with internal thread with the big end of fastening (1) and is connected with sucker rod.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
1. fastenings among the figure, 2. dog screw, 3. centralizer body, 4. the centralizer body of rod.
Fig. 2 is the A-A sectional view of Fig. 1.
The specific embodiment
Specify embodiment of the present utility model below in conjunction with accompanying drawing: centralizer body (3) bore area and the appearance interference fit of setting upright the body of rod (4), centralizer body (3) two ends are by the boss of the centralizer body of rod (4) and the small end end face axial location of fastening (1).Centralizer body (3) surface has four linear patterns (or screw type) groove, as crossing oily passage.Crude oil rises through the oily passage of the mistake on the centralizer body (3).The small end of fastening (1) and the centralizer body of rod (4) one ends are by being threaded, with dog screw (2) positioning and locking.The other end of the centralizer body of rod (4) is connected with sucker rod.On the centralizer body of rod (4) outer round surface, be provided with wrench faces, be convenient to clamping and install.In the oil pumping operating process, crude oil rises along crossing oily passage, and centralizer body (3) convex outer surfaces place and tube inner wall form sliding friction, utilize its self-lubricating property, reduce the friction between rod tube, improve the application life of centralizer and oil pipe.
Claims (3)
1. oil pumping rod centering device, comprise fastening (1), dog screw (2), centralizer body (3) and the centralizer body of rod (4), it is characterized in that: centralizer body (3) adopts the hot injection mo(u)lding of composite thermoplastic carbon fiber material, its external surface is provided with circumferential uniform straight line or the spiral helicine fluted body in four edges and crosses oily passage, and the big end of fastening (1) is provided with the screw thread that is connected with sucker rod with an end of the centralizer body of rod (4).
2. oil pumping rod centering device according to claim 1, it is characterized in that: centralizer body (3) bore area and the external surface interference fit of setting upright the body of rod (4), centralizer body (3) two ends are by the boss of the centralizer body of rod (4) and the small end end face axial location of fastening (1).
3. oil pumping rod centering device according to claim 1 is characterized in that: the small end of fastening (1) and the centralizer body of rod (4) other end are by being threaded, with dog screw (2) positioning and locking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086907 CN2869281Y (en) | 2005-08-31 | 2005-08-31 | Sucker rod centralishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086907 CN2869281Y (en) | 2005-08-31 | 2005-08-31 | Sucker rod centralishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2869281Y true CN2869281Y (en) | 2007-02-14 |
Family
ID=37724216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086907 Expired - Fee Related CN2869281Y (en) | 2005-08-31 | 2005-08-31 | Sucker rod centralishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2869281Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177330A1 (en) * | 2016-04-12 | 2017-10-19 | Plainsman Mfg. Inc. | Centralizer |
-
2005
- 2005-08-31 CN CN 200520086907 patent/CN2869281Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017177330A1 (en) * | 2016-04-12 | 2017-10-19 | Plainsman Mfg. Inc. | Centralizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201650148U (en) | Integral casing centralizer | |
| CN2869281Y (en) | Sucker rod centralishing device | |
| CN211474039U (en) | Tubing coupling | |
| CN202031494U (en) | Novel high-wear-resistant centering device of sucker rod | |
| CN201377294Y (en) | Righting abrasion-proof sucker-rod coupling | |
| CN201407166Y (en) | Piston connecting rod assembly of internal combustion engine type novel air compressor | |
| WO2009152652A1 (en) | A dual-plunger self-rotatable oil well pump | |
| CN2869280Y (en) | Dual rolling bearing type sucker rod centralising device | |
| CN102720441A (en) | Accessory used for guiding sucker rod | |
| CN201650150U (en) | Novel elastically-supported wear-resistant and wear-reducing pair | |
| CN201786274U (en) | High wear resistance rotary sucker rod eccentric wear prevention centralizer | |
| CN2434448Y (en) | Rotary plunger oil-well pump | |
| CN201460752U (en) | Three-segment spiral extra-heavy drill rod | |
| CN2642982Y (en) | Superhigh strength wearable correcting sucker rod | |
| CN201031631Y (en) | Rotary corrector for sucker rod | |
| CN205478654U (en) | Floating cylinder structure | |
| CN201103348Y (en) | Wear-resistant alloy pipe protecting connector for sucker rod | |
| CN2786270Y (en) | Self-lubricating paraffin control wearable sucker rod assembly | |
| CN220540567U (en) | Novel wear-resisting elbow of buggy | |
| CN2784574Y (en) | Rotary centralizer for sucker rod | |
| CN201059169Y (en) | Sucker rod elastic centralizer | |
| CN102720438B (en) | High-strength flexible oil-pumping polished rod | |
| CN202755909U (en) | High-strength flexible oil pumping polished rod | |
| CN1924285A (en) | Two-rolling bearing type pumping rod centralizer | |
| CN2775281Y (en) | Spin type oil pipe centralizer |
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 |