CN201214988Y - Torsion pumping polished rod - Google Patents
Torsion pumping polished rod Download PDFInfo
- Publication number
- CN201214988Y CN201214988Y CNU2008200225274U CN200820022527U CN201214988Y CN 201214988 Y CN201214988 Y CN 201214988Y CN U2008200225274 U CNU2008200225274 U CN U2008200225274U CN 200820022527 U CN200820022527 U CN 200820022527U CN 201214988 Y CN201214988 Y CN 201214988Y
- Authority
- CN
- China
- Prior art keywords
- polished rod
- rod
- torsion
- head
- oil pumping
- 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
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a torsion oil-pumping polished rod which is formed by the connection of a polished rod upset head, a square wrench, a rod body and a polished rod small head. The polished rod upset head is in a conical external thread structure, and the polished rod small head is a flat thread structure. The utility model has the advantages of high torsion capacity, good disengaging prevention effect and the like, and is especially applied to the screw pumps for oil production.
Description
One, technical field
The utility model relates to oil exploitation screw pump annex, particularly a kind of torsion oil pumping polish rod.
Two, background technology
At present, the polished rod that is used for screw pump oil production mainly adopts common oil pumping polish rod to replace.Though common oil pumping polish rod can make the screw pump running, can solve the well head sealing problem, but can not carry big torsional load, because common oil pumping polish rod bar head thread is a straight thread, its tooth form is less, can not carry and apply big pretension strength, more can not bear big torsion, when therefore being used to rotate the screw rod pump rod string of load, the dropout fault very easily occurs, influence the normal operation of screw pump.
Three, summary of the invention
The purpose of this utility model provides a kind ofly can carry and transmit torsional load, effectively prevents to thread off, be suitable for the torsion oil pumping polish rod of existing job execution instrument and existing oil production technology.
The utility model is connected to form by polished rod jumping-up head, spanner side, the body of rod and polished rod microcephaly, it is characterized in that described polished rod jumping-up head is the conical external screw thread structure, and the polished rod microcephaly is the flat thread structure.
Spanner side is a tetragonal.The diameter range of the body of rod is 25.4～38.1 millimeters.
The utility model compared with prior art has the following advantages:
1, the jumping-up head has adopted the tapered thread of unstressed groove structure, has effectively avoided common oil pumping polish rod stress groove location mechanical strength low, can not carry the defective of big torsional load.
The 2 tapered thread tooth forms that adopt are bigger, at box cupling with push away under the cooperation of cushion cap, can reach the tight distance of suitable screw thread, thereby enough anti-tripping frictional force is provided.Avoided effectively that common oil pumping polish rod is little because of the bar tooth form, stress scouring machine tool intensity low cause can not apply the anti-tripping strength of big pretension, easily cause the defective of dropout thing.
3, spanner side and the body of rod identical have been adopted with common oil pumping polish rod, its little head thread is also identical with common polished rod, therefore can be suitable for the existing construction operation instrument in oil field and existing oil production technology and frock easily, have easy construction, the advantage that operation and cost for oil production are low.。
Four, description of drawings
Accompanying drawing is a kind of structural representation of the present utility model
Five, the specific embodiment
With reference to accompanying drawing, a kind of torsion oil pumping polish rod is connected to form by polished rod jumping-up head 1, spanner side 2, the body of rod 3 and polished rod microcephaly 4.Polished rod jumping-up head 1 is the conical external screw thread structure, and polished rod microcephaly 4 is the flat thread structure.
Claims (3)
1, a kind of torsion oil pumping polish rod is connected to form by polished rod jumping-up head, spanner side, the body of rod and polished rod microcephaly, it is characterized in that described polished rod jumping-up head is the conical external screw thread structure, and the polished rod microcephaly is the flat thread structure.
2, torsion oil pumping polish rod according to claim 1, its feature are that also described spanner side is a tetragonal.
3, torsion oil pumping polish rod according to claim 1, its feature are that also the diameter range of the described body of rod is 25.4～38.1 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200225274U CN201214988Y (en) | 2008-05-14 | 2008-05-14 | Torsion pumping polished rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200225274U CN201214988Y (en) | 2008-05-14 | 2008-05-14 | Torsion pumping polished rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201214988Y true CN201214988Y (en) | 2009-04-01 |
Family
ID=40520192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200225274U Expired - Lifetime CN201214988Y (en) | 2008-05-14 | 2008-05-14 | Torsion pumping polished rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201214988Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628823A (en) * | 2012-08-20 | 2014-03-12 | 成都掌握移动信息技术有限公司 | Novel torsion oil pumping polish rod |
-
2008
- 2008-05-14 CN CNU2008200225274U patent/CN201214988Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103628823A (en) * | 2012-08-20 | 2014-03-12 | 成都掌握移动信息技术有限公司 | Novel torsion oil pumping polish rod |
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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: 20090401 |