CN2653114Y - Hoop joint type oil pumping rod centering guide - Google Patents
Hoop joint type oil pumping rod centering guide Download PDFInfo
- Publication number
- CN2653114Y CN2653114Y CN 03260537 CN03260537U CN2653114Y CN 2653114 Y CN2653114 Y CN 2653114Y CN 03260537 CN03260537 CN 03260537 CN 03260537 U CN03260537 U CN 03260537U CN 2653114 Y CN2653114 Y CN 2653114Y
- Authority
- CN
- China
- Prior art keywords
- centralizer
- oil pumping
- type oil
- pumping rod
- box cupling
- 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
Disclosed is a coupling sucker rod centralizer. The main part of the pumping unit used in oil field is the sucker rod, the sucker rod is easily to destroy the sleeve of the centralizer because of friction at the inner wall or collision as the sucker rod moves up and down inside the oil pipe. The fracture of the sleeve of the centralizer makes the operation inconvenient and also increases the cost because the centralizer is necessary to be replaced totally due to the complex structure of the centralizer. The coupling sucker rod centralizer includes a centralizer coupling 2; a centralizer sleeve 1 is arranged at the end of circular bead of the external circle of the centralizer coupling 2, a fixing nut 3 is arranged at the end of the centralizer sleeve 1. The product is applied in centering the sucker rod of pumping unit used in oil field.
Description
Technical field: the utility model relates to a kind of coupling type oil pumping rod centering device.
Background technology: the oil field is a sucker rod with the main working parts of oil pumper at present, sucker rod when work because of in oil pipe, moving up and down, very easily make the damaged fracture of its supporting positive cover with tube inner wall friction, collision, and existing centralizer is because of its complex structure, the supporting positive cover fracture needs the integral replacing centralizer, make troubles to the user, and increased cost of production.
Summary of the invention: the purpose of this utility model provides a kind of simple in structure, and cost of production is low, the coupling type oil pumping rod centering device that does not need the integral replacing centralizer just the supporting positive cover of breakage fracture can be changed during use.，
Above-mentioned purpose realizes by following technical scheme:
The coupling type oil pumping rod centering device, its composition comprises: the centralizer box cupling, the outside of described centralizer box cupling has shoulder, and supporting positive cover is equipped with in the described centralizer box cupling outside, and the opposite side of described supporting positive cover is equipped with locking cap by screw thread.
Above-mentioned coupling type oil pumping rod centering device, the inside of described centralizer box cupling has threaded hole, and described centralizer box cupling and locking cap adopt screw thread or matched in clearance.
Above-mentioned coupling type oil pumping rod centering device has 4-6 fin on the outer ring surface of described supporting positive cover, described fin evenly distributes along circumference.
This technical scheme has following beneficial effect:
1. coupling type oil pumping rod centering device of the present utility model, be processed with shoulder and external screw thread on the outer shroud end face of its centralizer box cupling, its locking cap and external screw thread screw, be used for fixing and dismantle supporting positive cover, thereby have simple in structurely, use cost of production low, screw firmly, install easily, advantages such as convenient disassembly reduce use cost more than 65%.
2. on the outer ring surface of the supporting positive cover of this product fin is arranged,, oil pumping rod centering device has been played the effect of protection because of fin carries out work near oil well.
3. the centralizer of this product plays when operation and sets upright and the effect of stable sucker rod, has avoided the eccentric wear of beam hanger, shows that through the axial compression test of centralizer its centralizer can bear bigger load and do not rupture.
4. the supporting positive cover of this product adopts the high molecular abrasion-proof material, thereby has advantage such as wear-resisting, high temperature resistant, shock resistance.
Description of drawings: accompanying drawing 1 is the structural representation of this product when centralizer box cupling and locking cap employing threaded engagement.
Accompanying drawing 2 is accompanying drawing 1 sectional drawings along the A-A direction.
Accompanying drawing 3 is this product structural representations when centralizer box cupling and locking cap employing matched in clearance.
Below in conjunction with the description of drawings specific embodiment:
Embodiment 1:
The coupling type oil pumping rod centering device, its composition comprises: centralizer box cupling 2, the outside of described centralizer box cupling 2 has shoulder 4, and supporting positive cover 1 is equipped with in described centralizer box cupling 2 outsides, and the opposite side of described supporting positive cover 1 is equipped with locking cap 3 by screw thread.
Embodiment 2:
Above-mentioned coupling type oil pumping rod centering device, the inside of described centralizer box cupling 2 has threaded hole, and described centralizer box cupling 2 adopts screw thread or matched in clearance with locking cap 3.
Embodiment 3:
Above-mentioned coupling type oil pumping rod centering device has 4-6 fin on the outer ring surface of described supporting positive cover, described fin evenly distributes along circumference.
Claims (3)
1. coupling type oil pumping rod centering device, its composition comprises: the centralizer box cupling, it is characterized in that: the outside of described centralizer box cupling has shoulder, and supporting positive cover is equipped with in the described centralizer box cupling outside, and the opposite side of described supporting positive cover is equipped with locking cap by screw thread.
2. coupling type oil pumping rod centering device according to claim 1 is characterized in that: the inside of described centralizer box cupling has threaded hole, and described centralizer box cupling and locking cap adopt screw thread or matched in clearance.
3. coupling type oil pumping rod centering device according to claim 1 and 2 is characterized in that: 4-6 fin arranged on the outer ring surface of described supporting positive cover, and described fin evenly distributes along circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03260537 CN2653114Y (en) | 2003-09-16 | 2003-09-16 | Hoop joint type oil pumping rod centering guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03260537 CN2653114Y (en) | 2003-09-16 | 2003-09-16 | Hoop joint type oil pumping rod centering guide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2653114Y true CN2653114Y (en) | 2004-11-03 |
Family
ID=34329167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03260537 Expired - Fee Related CN2653114Y (en) | 2003-09-16 | 2003-09-16 | Hoop joint type oil pumping rod centering guide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2653114Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041971A (en) * | 2011-02-01 | 2011-05-04 | 天津立林石油机械有限公司 | Replaceable mine screw drill centralizer |
| CN103912223A (en) * | 2014-04-12 | 2014-07-09 | 山东陆海石油装备有限公司 | Swivel bearing type drag reduction tool |
-
2003
- 2003-09-16 CN CN 03260537 patent/CN2653114Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102041971A (en) * | 2011-02-01 | 2011-05-04 | 天津立林石油机械有限公司 | Replaceable mine screw drill centralizer |
| CN103912223A (en) * | 2014-04-12 | 2014-07-09 | 山东陆海石油装备有限公司 | Swivel bearing type drag reduction tool |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2653114Y (en) | Hoop joint type oil pumping rod centering guide | |
| CN202031494U (en) | Novel high-wear-resistant centering device of sucker rod | |
| CN201254956Y (en) | Anti-biasing-wear hollow sucker rod | |
| CN201254961Y (en) | Anti-releasing rotating wax scraping centralizer for sucker rod roller | |
| CN2903362Y (en) | Multifunctional centering guide, wax scraping, oil increasing device | |
| CN2811594Y (en) | Oil-well pump with double functions of pumping oil and water | |
| CN2646368Y (en) | Eccentric proof grinding pair for oil tube and sucker rod | |
| CN2325506Y (en) | Sucker rod stabilizer to prevent it from being eccentrically worn | |
| CN201236636Y (en) | Anti-corrosion bias-wearing proof sucker-rod coupling | |
| CN200978633Y (en) | Combined type pump rod joint centralizing device | |
| CN113107384A (en) | Oil pipe non-thread gluing connecting structure and process | |
| CN201206453Y (en) | Multi-stage portal polish-rod sealing device | |
| CN201474626U (en) | Reverse buckle double joint | |
| CN2916100Y (en) | Anti-slide type sucker rod centralizer | |
| CN2573654Y (en) | Pumping rod collar rotating centering guide | |
| CN2376529Y (en) | Rotatable stabilizing wax scraper | |
| CN2535546Y (en) | Spiral column-shape righting device of beaming-rod | |
| CN2534356Y (en) | Sucker pole coupling centralizer | |
| CN101435523B (en) | Bias-wearing-proof method of filling oil conduit seam and oil conduit seam bushing ring | |
| CN2748631Y (en) | Quickly connecting and self-falling disassembled indicator cementing-head | |
| CN200978632Y (en) | Short pitch teeth-type centralizing device | |
| CN2777243Y (en) | Anti eccentrically wear device for oil pumping unit plunger | |
| CN202064855U (en) | Oil pipe connection protector for oil fields | |
| CN2869281Y (en) | Sucker rod centralishing device | |
| CN2693937Y (en) | Vane type sucker rod 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 |