CN201159156Y - Upper body of oil pump connector - Google Patents
Upper body of oil pump connector Download PDFInfo
- Publication number
- CN201159156Y CN201159156Y CNU2007200292895U CN200720029289U CN201159156Y CN 201159156 Y CN201159156 Y CN 201159156Y CN U2007200292895 U CNU2007200292895 U CN U2007200292895U CN 200720029289 U CN200720029289 U CN 200720029289U CN 201159156 Y CN201159156 Y CN 201159156Y
- Authority
- CN
- China
- Prior art keywords
- pressure ring
- upper body
- pump connector
- joint
- oil well
- 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
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- Earth Drilling (AREA)
Abstract
An upper body of an oil well pump connector is used in the Chinese patent application 02204675.5, which is composed of a sucker rod joint, a hanging joint and an anti-pressure ring, wherein the sucker rod joint is connected with the hanging joint, a variable diameter shoulder is arranged in the hanging joint, and the anti-pressure ring is mounted on the variable diameter shoulder arranged in the hanging joint. The hardness HRC of the anti-pressure ring (3) is larger than or equal to 50. For only bearing pressing without high durability requirement, the anti-pressure ring can employ high hardness materials such as hard alloy, the anti-pressure ring is strong in anti-pressure ability, thereby enabling the working stress of the anti-pressure ring to be lower than the admissible stress of materials, and therefore, the upper body of the oil well pump connector is high in strength, reliable in operating and long in service life.
Description
One, technical field
The utility model belongs to the parts on the fastening means of using in the oilfield pumping well, is oil well pump connector upper body.
Two, background technique
The upper body inwall shoulder of Chinese patent application 02204675.5 hangs the bullet piece, two area of contact is limited, contact stress is very high during work, though adopted good material and heat treatment measure, all do not satisfy the work on the spot requirement, the accident that upper body inwall shoulder destroys often occurs, cause economic loss.
Three, summary of the invention
The purpose of this utility model provides a kind of oil well pump connector upper body, makes its intensity height, reliable operation, long service life.
The purpose of this utility model is achieved in that by rod connector, suspension joint, compression ring to be formed, and rod connector is connected with suspension joint, and there is the reducing shoulder suspension joint inside, and compression ring is installed on the reducing shoulder of suspension joint inside.
The hardness HRC of compression ring 〉=50.Compression ring adopts Hardmetal materials.
The beneficial effects of the utility model are: because compression ring only bears extruding, less demanding to bearing property, can adopt high hardness material, the anti-extrusion ability of compression ring is strong, make its working stress be lower than the allowable stress of material, so the utility model can reach purpose of design, the intensity height, reliable operation, long service life.
Four, description of drawings
Accompanying drawing is an erection drawing of the present utility model.
Five, embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described.
Be made up of rod connector 1, suspension joint 2, compression ring 3, rod connector 1 is connected with suspension joint 2, and there is the reducing shoulder suspension joint 2 inside, and compression ring 3 is installed on the reducing shoulder of suspension joint 2 inside.Compression ring 3 adopts Hardmetal materials, the hardness HRC of compression ring 3 〉=50.Compression ring 3 also can adopt the material that after heat treatment can improve hardness, as tool steel, steel for carburizing etc.The utility model is used for Chinese patent application 02204675.5 oil well pump connecting-and-unconnecting device, replaces its upper body.
Claims (3)
1, a kind of oil well pump connector upper body, it is characterized in that: form by rod connector (1), suspension joint (2), compression ring (3), rod connector (1) is connected with suspension joint (2), there is the reducing shoulder suspension joint (2) inside, and compression ring (3) is installed on the inner reducing shoulder of suspension joint (2).
2, oil well pump connector according to claim 1 upper body is characterized in that: hardness HRC 〉=50 of compression ring (3).
3, oil well pump connector according to claim 1 upper body is characterized in that: compression ring (3) adopts Hardmetal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200292895U CN201159156Y (en) | 2007-10-21 | 2007-10-21 | Upper body of oil pump connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200292895U CN201159156Y (en) | 2007-10-21 | 2007-10-21 | Upper body of oil pump connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201159156Y true CN201159156Y (en) | 2008-12-03 |
Family
ID=40109741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200292895U Expired - Fee Related CN201159156Y (en) | 2007-10-21 | 2007-10-21 | Upper body of oil pump connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201159156Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639905A (en) * | 2017-01-24 | 2017-05-10 | 中国石油天然气集团公司 | Abnormal-diameter continuous oil pipe butt joint device and mounting method of butt joint device as well as abnormal-diameter oil pipe mounting method |
-
2007
- 2007-10-21 CN CNU2007200292895U patent/CN201159156Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639905A (en) * | 2017-01-24 | 2017-05-10 | 中国石油天然气集团公司 | Abnormal-diameter continuous oil pipe butt joint device and mounting method of butt joint device as well as abnormal-diameter oil pipe mounting method |
| CN106639905B (en) * | 2017-01-24 | 2018-10-12 | 中国石油天然气集团公司 | Reducing coiled tubing docking facilities and its installation method and reducing oil pipe installation method |
| US11149496B2 (en) | 2017-01-24 | 2021-10-19 | China National Petroleum Corporation | Coupling apparatus for coiled tubings of different diameters, installing method for coupling apparatus, and installing method for tubings of different diameters using coupling apparatus |
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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: 20081203 Termination date: 20091123 |