CN201056995Y - Telescopic compensation vibration absorber of oil pumping rod - Google Patents
Telescopic compensation vibration absorber of oil pumping rod Download PDFInfo
- Publication number
- CN201056995Y CN201056995Y CNU2007201542741U CN200720154274U CN201056995Y CN 201056995 Y CN201056995 Y CN 201056995Y CN U2007201542741 U CNU2007201542741 U CN U2007201542741U CN 200720154274 U CN200720154274 U CN 200720154274U CN 201056995 Y CN201056995 Y CN 201056995Y
- Authority
- CN
- China
- Prior art keywords
- sucker rod
- urceolus
- pull bar
- limiter
- outer barrel
- 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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Abstract
The utility model relates to an oil pumping rod telescopic compensating shock absorber, which comprises a connector, an outer barrel, a pulling bar and a back cap. Thread is arranged in the connector, the connector is connected with the upper part of the outer barrel through outer thread, a spring is arranged at one side near to the connector in the outer barrel, a step-shaped lower limiter is arranged at the lower part of the outer barrel, a step-shaped upper limiter is arranged at the upper part of the pulling bar, the upper limiter of the pulling rod is connected with the inside the outer barrel, a spring is arranged between the upper limiter and the lower limiter, the inner diameter of the outer barrel is equal to the outer diameter of the upper limiter, and the outer diameter of the pulling bar is equal to the inner diameter of lower limiter; the back cap is connected at the lower part of the pulling bar, and the back cap is connected with the pulling bar through thread. The utility model has the advantages that the utility model can absorb bending stress, and liquid impacting force, relieve the bending of the pumping rod, reduce the eccentric wear of the rod column, prolong the pump inspection period, reduce the operation investment cost, and prolong the service life of the oil pumping rod.
Description
Technical field
The utility model relates to a kind of sucker rod device of rod-pumped well, relates in particular to a kind of sucker rod flexible compensation damper.
Background technology
The oil pumping of beam hanger pump is in the lifting process, and the sucker rod roofbolt is owing to be subjected to the influence of factors such as well liquid buoyancy, frictional force, the sharp power of liquid, and the bottom sucker rod is stressed very complicated, problems such as middle and lower part rod broken, dropout, eccentric wear occur through regular meeting.The main cause of bottom rod broken, dropout, eccentric wear is the influence that sucker rod is subjected to reasons such as roofbolt and well liquid resistance friction power, crude oil property, oil well pump full level, lifting parameter when descending.In oil pumping high viscosity oil well, cause the main cause of sucker rod roofbolt bottom helical buckling when roofbolt is descending often by the resistance of travelling valve generation with the resistance friction power of generation and liquid.The flexion torsion power that forms behind the sucker rod lower knuckle discharges in rigid body nowhere, causes pumping rod disengaging easily so discharge when sucker rod is up.Simultaneously the descending flexural stress of sucker rod and because of the oil well pump degree of filling not the liquid hammer power of high generation form stress easily at sucker rod surface blemishes place and concentrate, and the stack of various load can reduce the fatigue life of sucker rod greatly, finally causes rod broken.Based on above problem, design a kind of stack that can solve various load such as the flexural stress that produces in the sucker rod running, liquid hammer power, rigid shock, thereby the application life that prolongs sucker rod is necessary.
The utility model content
The purpose of this utility model provides a kind of sucker rod flexible compensation damper, the problem that the stack of various load such as the flexural stress that produces in the existing sucker rod running of solution, liquid hammer power, rigid shock makes sucker rod take off easily, break.
The technical scheme that realizes above-mentioned purpose is:
A kind of sucker rod flexible compensation damper, comprise joint, urceolus, pull bar and back of the body cap, establish screw thread in the described joint, joint is connected by external screw thread with the top of urceolus, be provided with spring near joint one side in the urceolus, the bottom of described urceolus is provided with the step lower limit, the top of described pull bar is provided with the step upper limit, the upper limit of pull bar is connected in the inside of urceolus, be provided with spring between described upper limit and the lower limit, the internal diameter of urceolus is identical with the external diameter of pull bar upper limit, and the external diameter of pull bar is identical with the internal diameter of urceolus lower limit; The bottom of pull bar connects back of the body cap, and described back of the body cap and pull bar are by being threaded.
The utlity model has following beneficial effect:
The utility model can absorb flexural stress, liquid hammer power, can alleviate the bending of sucker rod again, reduces the roofbolt eccentric wear, prolongs pump detection period, reduces the operation input cost, prolongs the application life of sucker rod.
Description of drawings:
Fig. 1 is the structure chart of sucker rod flexible compensation damper described in the utility model.
Among the figure:
1, joint; 2, urceolus; 3, pull bar; 4, back of the body cap; 5, lower limit; 6, upper limit; 7, spring; 8, spring.
The specific embodiment
As shown in Figure 1, sucker rod flexible compensation damper described in the utility model, comprise joint 1, urceolus 2, pull bar 3 and back of the body cap 4, establish screw thread in the described joint 1, joint 1 is connected by external screw thread with the top of urceolus 2, be provided with spring 7 near joint 1 one sides in the urceolus 2, the bottom of described urceolus 2 is provided with step lower limit 5, the top of described pull bar 3 is provided with step upper limit 6, the upper limit 6 of pull bar 3 is connected in the inside of urceolus 2, be provided with spring 8 between described upper limit 5 and the lower limit 6, the internal diameter of urceolus 2 is identical with the external diameter of pull bar 3 upper limits 6, and the external diameter of pull bar 3 is identical with the internal diameter of urceolus 2 lower limit 5; The bottom of pull bar 3 connects back of the body cap 4, and described back of the body cap 4 and pull bar 3 are by being threaded.
When being hampered when sucker rod is descending with the generation bending, one flexible breeze way is arranged between urceolus 2 and pull bar 3, and 5 pairs of pull bars of urceolus 2 lower limit, 3 upper limits 6 do not have disengaging, and pull bar 3 produces slip in urceolus 2, slow down descending speed with compensation owing to sucker rod is hampered, thereby avoid sucker rod to bend; When sucker rod was distorted owing to hole deviation is hampered, owing to be that the step slidingtype is connected between urceolus 2 and the pull bar 3, pull bar 3 can rotate in urceolus 2, thereby can eliminate the moment of torsion that produces in the sucker rod running.The design of two springs can be played damping action when sucker rod is up, reduce the stack of load such as gravity, power; When sucker rod is descending, prevent to move too fast, reduce impact.Provide safeguard so the utility model is the normal operation of sucker rod, can significantly reduce the generation of breaking, taking off phenomenon of sucker rod, prolong the application life of sucker rod.
Claims (7)
1. sucker rod flexible compensation damper, comprise joint, urceolus, pull bar and back of the body cap, it is characterized in that: described joint is connected with the top of urceolus, the bottom of described urceolus is provided with the step lower limit, the top of described pull bar is provided with the step upper limit, the upper limit of pull bar is connected in the inside of urceolus, and the bottom of pull bar connects back of the body cap.
2. sucker rod flexible compensation damper according to claim 1 is characterized in that: described joint and urceolus are by being threaded.
3. sucker rod flexible compensation damper according to claim 1 is characterized in that: described back of the body cap and pull bar are by being threaded.
4. sucker rod flexible compensation damper according to claim 1 is characterized in that: the internal diameter of urceolus is identical with the external diameter of pull bar upper limit.
5. sucker rod flexible compensation damper according to claim 1 is characterized in that: the external diameter of pull bar is identical with the internal diameter of urceolus lower limit.
6. sucker rod flexible compensation damper according to claim 1 is characterized in that: be provided with spring near joint one side in the urceolus.
7. sucker rod flexible compensation damper according to claim 1 is characterized in that: be provided with spring between described upper limit and the lower limit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201542741U CN201056995Y (en) | 2007-05-15 | 2007-05-15 | Telescopic compensation vibration absorber of oil pumping rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201542741U CN201056995Y (en) | 2007-05-15 | 2007-05-15 | Telescopic compensation vibration absorber of oil pumping rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201056995Y true CN201056995Y (en) | 2008-05-07 |
Family
ID=39425835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201542741U Expired - Fee Related CN201056995Y (en) | 2007-05-15 | 2007-05-15 | Telescopic compensation vibration absorber of oil pumping rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201056995Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033110A (en) * | 2014-06-17 | 2014-09-10 | 济源市石油机械有限公司 | Sucker rod rotating shock-absorbing anti-releasing device |
| CN110416835A (en) * | 2019-08-02 | 2019-11-05 | 重庆梦马致新科技有限公司 | A kind of male connector of cable wet joint |
-
2007
- 2007-05-15 CN CNU2007201542741U patent/CN201056995Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104033110A (en) * | 2014-06-17 | 2014-09-10 | 济源市石油机械有限公司 | Sucker rod rotating shock-absorbing anti-releasing device |
| CN110416835A (en) * | 2019-08-02 | 2019-11-05 | 重庆梦马致新科技有限公司 | A kind of male connector of cable wet joint |
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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: 20080507 Termination date: 20110515 |