CN202370443U - Multifunctional pumping rod joint - Google Patents
Multifunctional pumping rod joint Download PDFInfo
- Publication number
- CN202370443U CN202370443U CN2011205272377U CN201120527237U CN202370443U CN 202370443 U CN202370443 U CN 202370443U CN 2011205272377 U CN2011205272377 U CN 2011205272377U CN 201120527237 U CN201120527237 U CN 201120527237U CN 202370443 U CN202370443 U CN 202370443U
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- CN
- China
- Prior art keywords
- joint
- rod
- pumping
- spherical bump
- connecting rod
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- 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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Abstract
The utility model discloses a multifunctional pumping rod joint in the technical field of oilfield machinery, and aims to solve the problems of eccentric wear caused by bending of a pumping rod due to pressing and high probability of erosion of the outer surface by oil in the prior art. The multifunctional pumping rod joint comprises an upper joint and a lower joint, wherein one end of the lower joint is provided with a spherical bump; the spherical bump is connected with the lower joint through a connecting rod; one end of the upper joint is provided with a middle joint; a concave hole which is matched with the spherical bump is formed in the middle joint; the spherical bump is accommodated in the concave hole; the connecting rod extends out of the bottom of the concave hole and is connected with the lower joint; and a certain expansion and retraction distance is reserved between the connecting rod and the lower joint. When the pumping oil is pressed, the connecting rod can push the spherical bump to move upwards and reduce the deformation of the rod body; the spherical bump can freely rotate in the concave hole; the problems of eccentric wear and breakage of the pumping rod caused by rigid torsion are effectively solved; and the multifunctional pumping rod joint is applied to a pumping unit, so that the working efficiency can be increased and the service life can be prolonged.
Description
Technical field
The utility model relates to a kind of pumping tool in the oilfield machinery technical field, particularly a kind of rod connector.
Background technology
Oil pumper is as present oil field oil recovery capital equipment, and sucker rod is the critical component of oil pumping system then, is used to connect oil well pump and oil pumper, plays the effect of transferring power, the stable operation of the whole oil pumping system of the good and bad directly decision of the performance of sucker rod.
In the prior art, generally adopt screwed connection between the sucker rod, do not have buffering between the body of rod, be mostly to be rigidly connected.During oil pumping, oil pumper drives sucker rod and pumps, and in the down stroke stage, sucker rod mainly receives the drag effect that when gravity downward in fluid and piston down stroke, makes progress.More than both direction equilibrium of forces point (being neutral point), sucker rod is extended state; And below the neutral point, sucker rod then can twist by pressurized, with oil pipe generation eccentric wear, is prone to cause fracture, and sucker rod is fallen in the oil well.When salvaging sucker rod, just waste lot of manpower and material resources like this, influenced production efficiency, increased cost of production.
In addition, sucker rod is immersed in the whole oil pipe tubing string of oil extraction system in the course of the work for a long time, contains hydrogen sulfide, carbon dioxide, water, mould and other comprehensive corrosion factors and hard suspended particulate in the liquid of pumping, is managed the corrosion of inner fluid simultaneously; The inefficacy that under the effect of alternating stresses and corrosive medium, can occur the body of rod through sucker rod is after a while ruptured; So require sucker rod under applying working condition, not only to have higher intensity, have resistance to corrosion preferably simultaneously.
The utility model content
The purpose of the utility model is to overcome deficiency of the prior art, provides a kind of.
The purpose of the utility model is achieved in that a kind of multifunctional pumping rod joint, comprises top connection and lower contact, and said lower contact one end is provided with hemisphere jut, and said hemisphere jut is connected with lower contact through connecting rod; One end of said top connection is provided with transition joint, and the inside of transition joint offers the shrinkage pool that matches with said hemisphere jut.
When the utility model is installed and used; At first the end of connecting rod from transition joint stretched in the inner shrinkage pool of transition joint; And stretch out from the bottom of transition joint other end shrinkage pool; Hemisphere jut is contained in the shrinkage pool, then transition joint is fixedly connected with top connection, the external part of connecting rod is connected with lower contact gets final product at last.Under the deadweight downstream state, hemisphere jut is in the shrinkage pool bottommost, leaves one section flexible distance between top connection and the lower contact; When the sucker rod pressurized, connecting rod can promote hemisphere jut and move upward, reduced distances between the upper and lower joint; Reduce body of rod distortion, and hemisphere jut can rotate freely in shrinkage pool, effectively solve eccentric wear, breakage problem that sucker rod causes because of rigid distortion; Prolong the application life of sucker rod, improved oil well production efficient.
As the further improvement of the utility model, said top connection and lower contact external surface are provided with wearing layer.During work, wearing layer is fully kept apart rod connector and corrosive medium, improves effectively that rod connector is anticorrosive, the performance of erosion resistant, prolongs the application life of rod connector, significantly improves pumping efficiency, reduces cost for oil production.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein, 1 top connection; 2 lower contacts; 3 hemisphere juts; 4 connecting rods; 5 transition joints; 6 shrinkage pools; 7 wearing layers.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail.
As shown in Figure 1, be the utility model structural representation, a kind of multifunctional pumping rod joint comprises top connection 1 and lower contact 2, and said lower contact 2 one ends are provided with hemisphere jut 3, and said hemisphere jut 3 is connected with lower contact 2 through connecting rod 4; One end of said top connection 1 is provided with transition joint 5, and the inside of transition joint 5 offers the shrinkage pool 6 that matches with said hemisphere jut 3.Said top connection 1 is provided with wearing layer 7 with lower contact 2 external surfaces.
Connecting rod 4 was arranged with lower contact in 2 minutes, can be fixedly connected through binding thread between the two.When installing and using, connecting rod 4 one ends stretch out from shrinkage pool 6 bottoms, under the deadweight downstream state, can make and leave one section flexible distance between top connection 1 and the lower contact 2, thereby reduce the sucker rod bend by pressure, avoid and oil pipe generation eccentric wear.The size of top connection 1 inner shrinkage pool 6 will be enough to accommodate hemisphere jut 3, and it can be rotated freely in shrinkage pool 6 and pump.The nonmetal macromolecular material of wearing layer 7 preferred light weights and erosion resistant because its smooth outer surface can slow down sucker rod surperficial wax deposition and fouling, reduces down-hole frictional resistance, improves pumping efficiency.
The utility model is not limited to the foregoing description; On the basis of the disclosed technical scheme of the utility model; Those skilled in the art is according to disclosed technology contents; Do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in the protection domain of the utility model.
Claims (2)
1. a multifunctional pumping rod joint comprises top connection and lower contact, it is characterized in that, said lower contact one end is provided with hemisphere jut, and said hemisphere jut is connected with lower contact through connecting rod; One end of said top connection is provided with transition joint, and the inside of transition joint offers the shrinkage pool that matches with said hemisphere jut.
2. a kind of multifunctional pumping rod joint according to claim 1 is characterized in that said top connection and lower contact external surface are provided with wearing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205272377U CN202370443U (en) | 2011-12-16 | 2011-12-16 | Multifunctional pumping rod joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205272377U CN202370443U (en) | 2011-12-16 | 2011-12-16 | Multifunctional pumping rod joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202370443U true CN202370443U (en) | 2012-08-08 |
Family
ID=46594150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205272377U Expired - Lifetime CN202370443U (en) | 2011-12-16 | 2011-12-16 | Multifunctional pumping rod joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202370443U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894334A (en) * | 2017-04-17 | 2017-06-27 | 中铁第四勘察设计院集团有限公司 | A kind of expansion gap device for large span magnetic floating traffic bridge |
-
2011
- 2011-12-16 CN CN2011205272377U patent/CN202370443U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106894334A (en) * | 2017-04-17 | 2017-06-27 | 中铁第四勘察设计院集团有限公司 | A kind of expansion gap device for large span magnetic floating traffic bridge |
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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 |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |