CN208966215U - A kind of oil pumping rod centering device of wear-resistant - Google Patents
A kind of oil pumping rod centering device of wear-resistant Download PDFInfo
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- CN208966215U CN208966215U CN201821808342.6U CN201821808342U CN208966215U CN 208966215 U CN208966215 U CN 208966215U CN 201821808342 U CN201821808342 U CN 201821808342U CN 208966215 U CN208966215 U CN 208966215U
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- box cupling
- outside
- wear
- oil pumping
- centering device
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Abstract
The utility model relates to oil well technical field of auxiliary equipment, and disclose a kind of oil pumping rod centering device of wear-resistant, including centralizer, the external activity of centralizer is socketed with supporting positive cover, box cupling is fixedly installed at the top of centralizer, the outside of box cupling offers sliding groove, the external activity of box cupling is socketed with spring, the top movable sleeve that the outside of box cupling is located at spring is connected to lower seal pad, the outside of box cupling and be located at lower seal pad top movable sleeve be connected to gasket, it is located at the surrounding outside box cupling at the top of upper gasket and is fixedly installed with fixture block, the outside of box cupling and the internal activity of sucker rod bottom end are socketed, the outside of supporting positive cover is fixedly installed with pulley.The oil pumping rod centering device of the wear-resistant, so that the sealing effect between box cupling and sucker rod is preferable, is prevented oil and overflowed from junction, improve the working efficiency of oil pumping by being used cooperatively for spring, upper gasket, lower seal pad and fixture block.
Description
Technical field
The utility model relates to oil well technical field of auxiliary equipment, specially a kind of sucker rod stabilizing of wear-resistant
Device.
Background technique
Oil pumping rod centering device is anti-pumpingh well eccentric wear downhole tool, suitable for the rod-pumped well of eccentric wear, is particularly suitable for taking out
The rod-pumped well and deviated directional drilling of the above eccentric wear of the beam hanger point of neutralization, the sucker rod point of neutralization with the nylon on the oil pumping body of rod hereinafter, help
Positive device cooperation, eccentric abrasion prevention better effect.
For existing oil pumping rod centering device in use, finding that existing oil pumping rod centering device and oil pipe directly pass through spiral shell
Line connection, so that cause pumping efficiency to reduce using easily there is the case where oil leak for a long time, simultaneously because oil pumping rod centering device
Supporting positive cover directly contacts the serious wear for leading to lead to supporting positive cover and oil pipe because contact area is excessive with the inner wall of oil well, reduces
Service life.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of oil pumping rod centering device of wear-resistant, has
The advantage that sealing effect is good and wearability is good solves existing oil pumping rod centering device and is directly connected through a screw thread with oil pipe, makes
It obtains for a long time using easily there is the case where oil leak, causes pumping efficiency to reduce, simultaneously because the supporting positive cover of oil pumping rod centering device is straight
It connects and contacts the serious wear for leading to lead to supporting positive cover because contact area is excessive with the inner wall of oil well, reduce asking for service life
Topic.
The utility model provides the following technical solutions: a kind of oil pumping rod centering device of wear-resistant, including centralizer, institute
The external activity for stating centralizer is socketed with supporting positive cover, and box cupling, the outside of the box cupling are fixedly installed at the top of the centralizer
Sliding groove is offered, the external activity of the box cupling is socketed with spring, and the outside of the box cupling is located at the top movable sleeve of spring
It is connected to lower seal pad, the outside of the box cupling and top movable sleeve for being located at lower seal pad is connected to gasket, the upper sealing
Pad top is located at the surrounding outside box cupling and is fixedly installed with fixture block, the outside of the box cupling and the internal activity set of sucker rod bottom end
It connects, the outside of the supporting positive cover is fixedly installed with pulley.
Preferably, the overall diameter value of the box cupling is less than the overall diameter value of supporting positive cover, and the outside of the box cupling offers spiral shell
Line.
Preferably, the top movable of the bottom end of the spring and centralizer connects, under the interior diameter value of the spring is less than
The diameter value of gasket.
Preferably, it is provided with sawtooth at the top of the lower seal pad, and the sawtooth in lower seal pad and upper gasket bottom
Sawtooth be adapted, the internal activity of the inside of the lower seal pad and sliding groove connects.
Preferably, the inside of the sucker rod bottom end offers and internal screw thread compatible outside box cupling, the sucker rod
The inside of bottom end offers card slot, and the shape of card slot and the shape of fixture block are identical on sucker rod.
Preferably, the quantity of the pulley is 12, and 12 pulley circular arrays are evenly distributed in righting
The inner wall of the outside of set, the pulley one end and oil pipe far from supporting positive cover is slidably connected.
Be compared with the prior art, the utility model have it is following the utility model has the advantages that
1, the oil pumping rod centering device of the wear-resistant is made by the cooperation of spring, upper gasket, lower seal pad and fixture block
With preventing oil and overflowed from junction, improve the work of oil pumping so that the sealing effect between box cupling and sucker rod is preferable
Efficiency.
2, the oil pumping rod centering device of the wear-resistant makes the cunning on tube inner wall and supporting positive cover by the effect of pulley
Wheel contact, reduces contact area and reduces the abrasion to supporting positive cover and oil pipe, achieved the purpose that eccentric abrasion prevention, extended whole
The service life of a device.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model；
Fig. 2 is the schematic top plan view of the utility model structure supporting positive cover.
In figure: 1, centralizer；2, supporting positive cover；3, box cupling；4, sliding groove；5, spring；6, lower seal pad；7, upper gasket；
8, fixture block；9, sucker rod；10, pulley.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
A kind of oil pumping rod centering device of wear-resistant referring to FIG. 1-2, including centralizer 1, the external of centralizer 1 live
Dynamic to be socketed with supporting positive cover 2, the top of centralizer 1 is fixedly installed with box cupling 3, and the overall diameter value of box cupling 3 is less than the outer straight of supporting positive cover 2
The outside of diameter value, box cupling 3 offers screw thread, is risen and is helped to sucker rod 9 by the diameter value that the diameter value of supporting positive cover 2 is greater than box cupling 3
Positive interaction, avoids run-off the straight during oil pumping of sucker rod 9, and the outside of box cupling 3 offers sliding groove 4, the outside of box cupling 3
Movable sleeve is connected to spring 5, and the bottom end of spring 5 is connect with the top movable of centralizer 1, and the interior diameter value of spring 5 is less than lower sealing
The diameter value of pad 6 is influenced because of lower seal pad 6 and upper gasket 7 by expanding with heat and contract with cold by avoiding under the action of spring 5, right
Sealing effect between centralizer 1 and sucker rod 9 impacts, and improves sealing effect, and the outside of box cupling 3 is located at spring 5
Top movable sleeve is connected to lower seal pad 6, and the top of lower seal pad 6 is provided with sawtooth, and the sawtooth in lower seal pad 6 and upper sealing
The sawtooth for padding 7 bottoms is adapted, and the inside of lower seal pad 6 is connect with the internal activity of sliding groove 4, by lower seal pad 6 and upper
Gasket 7 is used cooperatively, so that the sealing effect between box cupling 3 and sucker rod 9 is more preferable, improves pumping efficiency, box cupling 3
Top movable sleeve that is external and being located at lower seal pad 6 is connected to gasket 7, the surrounding being located at outside box cupling 3 at the top of upper gasket 7
It is fixedly installed with fixture block 8, the outside of box cupling 3 and the internal activity of 9 bottom end of sucker rod are socketed, and the inside of 9 bottom end of sucker rod opens up
There is compatible internal screw thread, the inside of 9 bottom end of sucker rod with the outside of box cupling 3 to offer card slot, and on sucker rod 9 card slot shape
It is identical as the shape of fixture block 8, avoid upper gasket 7 and lower seal pad 6 during oil pumping from loosening so that oil is from box cupling 3 and takes out
The junction of beam hanger 9 is overflowed, and is reduced its leakproofness and is reduced pumping efficiency, the outside of supporting positive cover 2 is fixedly installed with cunning
Wheel 10, the quantity of pulley 10 is 12, and 12 10 circular arrays of pulley are evenly distributed in the outside of supporting positive cover 2,
The inner wall of pulley 10 one end and oil pipe far from supporting positive cover 2 is slidably connected, and connects tube inner wall with the pulley 10 on supporting positive cover 2
Touching, reduces contact area and reduces the abrasion to supporting positive cover and oil pipe, achieved the purpose that eccentric abrasion prevention, extended entire dress
The service life set.
Spring 5, lower seal pad 6, upper gasket 7 are successively socketed in the outside of box cupling 3 by working principle first, then will
Sucker rod 9 and 3 screw thread of box cupling are socketed, and centralizer 1, which is subsequently put into oil pipe, contacts one end of pulley 10 with the inner wall of oil pipe,
?.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of oil pumping rod centering device of wear-resistant, including centralizer (1), it is characterised in that: outside the centralizer (1)
Portion's movable sleeve is connected to supporting positive cover (2), is fixedly installed with box cupling (3) at the top of the centralizer (1), the outside of the box cupling (3)
It offers sliding groove (4), the external activity of the box cupling (3) is socketed with spring (5), and the outside of the box cupling (3) is located at spring
(5) top movable sleeve is connected to lower seal pad (6), the outside of the box cupling (3) and the top movable sleeve for being located at lower seal pad (6)
It is connected to gasket (7), box cupling (3) external surrounding is located at the top of the upper gasket (7) and is fixedly installed with fixture block (8), institute
The internal activity of the outside and sucker rod (9) bottom end of stating box cupling (3) is socketed, and the outside of the supporting positive cover (2) is fixedly installed with cunning
It takes turns (10).
2. a kind of oil pumping rod centering device of wear-resistant according to claim 1, it is characterised in that: the box cupling (3)
Overall diameter value be less than supporting positive cover (2) overall diameter value, the outside of the box cupling (3) offers screw thread.
3. a kind of oil pumping rod centering device of wear-resistant according to claim 1, it is characterised in that: the spring (5)
Bottom end connect with the top movable of centralizer (1), the interior diameter value of the spring (5) is less than the diameter value of lower seal pad (6).
4. a kind of oil pumping rod centering device of wear-resistant according to claim 1, it is characterised in that: the lower seal pad
(6) sawtooth is provided at the top of, and the sawtooth in lower seal pad (6) is adapted with the sawtooth of upper gasket (7) bottom, under described
The inside of gasket (6) is connect with the internal activity of sliding groove (4).
5. a kind of oil pumping rod centering device of wear-resistant according to claim 1, it is characterised in that: the sucker rod
(9) inside of bottom end offers the compatible internal screw thread with box cupling (3) outside, and the inside of sucker rod (9) bottom end offers
Card slot, and the shape of card slot is identical as the shape of fixture block (8) on sucker rod (9).
6. a kind of oil pumping rod centering device of wear-resistant according to claim 1, it is characterised in that: the pulley (10)
Quantity be 12, and 12 pulley (10) circular arrays are evenly distributed in the outside of supporting positive cover (2), the pulley
(10) inner wall of one end far from supporting positive cover (2) and oil pipe is slidably connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821808342.6U CN208966215U (en) | 2018-11-02 | 2018-11-02 | A kind of oil pumping rod centering device of wear-resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821808342.6U CN208966215U (en) | 2018-11-02 | 2018-11-02 | A kind of oil pumping rod centering device of wear-resistant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208966215U true CN208966215U (en) | 2019-06-11 |
Family
ID=66765016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821808342.6U Active CN208966215U (en) | 2018-11-02 | 2018-11-02 | A kind of oil pumping rod centering device of wear-resistant |
Country Status (1)
| Country | Link |
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| CN (1) | CN208966215U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856866A (en) * | 2023-09-01 | 2023-10-10 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
-
2018
- 2018-11-02 CN CN201821808342.6U patent/CN208966215U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116856866A (en) * | 2023-09-01 | 2023-10-10 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
| CN116856866B (en) * | 2023-09-01 | 2023-12-15 | 新疆坤隆石油装备有限公司 | Eccentric wear prevention device and method for sucker rod |
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