CN208024305U - One kind supporting contactless proof-wear sucker rod centralising device entirely - Google Patents
One kind supporting contactless proof-wear sucker rod centralising device entirely Download PDFInfo
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- CN208024305U CN208024305U CN201820079146.3U CN201820079146U CN208024305U CN 208024305 U CN208024305 U CN 208024305U CN 201820079146 U CN201820079146 U CN 201820079146U CN 208024305 U CN208024305 U CN 208024305U
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- sucker rod
- centralizer body
- balance weight
- centralizer
- top connection
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Abstract
The utility model proposes one kind supporting contactless proof-wear sucker rod centralising device entirely.It is related to well rod technical field.Clearance fit is connected with centralizer body on cylinder between top connection and lower contact, and centralizer body is two panels fastening structure, and the cylindrical gap after being fixed by hexagon socket head cap screw between top connection and lower contact is connected；There are six balance weight, balance weights to be connected by axis pin, bearing and centralizer body for centralizer body peripheral hardware.The centralizer is by being arranged the upper and lower connector of seperated centralizer body clearance fit, the advantages of having both integral type and Split type centralizer, the generation of friction phenomenon can be prevented, while preventing oil pumping torsion of bar, contactless balance weight centering sucker rod is set, mitigate the friction that generation is contacted between sucker rod and oil pipe, it effectively prevents sucker rod from deviateing oil pipe center simultaneously, improves the production efficiency of pumping unit, be convenient for changing parts, the human cost and goods and materials cost of maintenance maintenance are reduced, it is advantageous to promote and apply.
Description
Technical field：
The utility model is related to well rod technical fields, specifically a kind of that contactless eccentric abrasion prevention is supported to take out entirely
Beam centralizer.
Background technology：
Crude oil is given rise to ground by screw pump oil pumping system, and the rotation of surface drive is transmitted to well by sucker rod
Lower screw pump, under the action of torque and wellbore trajectory, sucker rod can be distorted and stir, and oil pumping club shaft and oil pipe can not
It rubs with avoiding, causes tubing wall thinning, bear pressure reduction, for a long time it is also possible to will produce showing for rod broken
As influencing the normal production of oil well；
Oil pumping rod centering device is strong with flexibility, it is contacted with tube inner wall, it is possible to reduce the friction of bar and pipe, enhancing are taken out
It is tight that abrasion is used for a long time with the rotation campaign of sucker rod, local friction phenomenon in the oil recovery service life of oil machine, integral type centralizer
Weight, increases production cost；Split type righting is susceptible to piston effect, influences the normal operation of equipment, the surface of centralizer
Spiral raised line is usually set as centralizer body to prevent eccentric wear, but spiral raised line is easy that sucker rod is made to turn round
Turn, safety is not high, influences the efficiency that deep-well extracts oil；
Up to five, six, centralizer should be selected for the crude oil of different viscosities for as little as 2, the fulcrum of oil pumping rod centering device
Different number of fulcrum, fulcrum is few, and overcurrent performance is good, and support effect is bad；Fulcrum is at most opposite.
Utility model content：
To solve the above-mentioned problems, the utility model provides one kind and supporting contactless proof-wear sucker rod centralising device entirely.
The technical solution of the utility model is：One kind supporting contactless proof-wear sucker rod centralising device entirely, including above connects
Head and lower contact, clearance fit is connected with centralizer body on the cylinder between top connection and lower contact, and centralizer body is that two panels fastens knot
Structure, the cylindrical gap after being fixed by hexagon socket head cap screw between top connection and lower contact are connected；
In the axial direction, the balance weight equipped with six strips being evenly arranged, balance weight leads to centralizer body outer cylinder surface
Axis pin, bearing and centralizer body is crossed to connect.
The balance weight is connected by axis pin, bearing and centralizer body, and axis pin, axis pin are connected in the middle part of the balance weight of strip
It is connect with bearing, there is a distance, the distance between balance weight outer surface and oil pipe to be less than between balance weight outer surface and oil pipe
The distance between balance weight the inside and centralizer body.
The balance weight of the strip, balance weight upper and lower ends are fabricated to spherical shape.
The utility model has the advantages that：The centralizer is connect above and below by the way that seperated centralizer body clearance fit is arranged
Head, the advantages of having both integral type and Split type centralizer, you can prevent the generation of friction phenomenon, while preventing the torsion of sucker rod
Turn, contactless balance weight centering sucker rod is set, mitigate the friction for contacting generation between sucker rod and oil pipe, reduces sucker rod
Resistance, while it is effective prevent sucker rod from deviateing oil pipe center, improve the production efficiency of pumping unit, be convenient for changing parts,
The human cost and goods and materials cost of maintenance maintenance are reduced, it is advantageous to promote and apply.
Description of the drawings：
Fig. 1 is the structural schematic diagram of the utility model；
Attached drawing 2 is the sectional view of centralizer body in the utility model.
1- top connections in figure, 2- lower contacts, 3- centralizer bodies, 4- balance weights, 5- bearings, 6- axis pins.
Specific implementation mode：
The utility model is described in further detail below in conjunction with the accompanying drawings：
Shown in Fig. 1 combinations Fig. 2, one kind supporting contactless proof-wear sucker rod centralising device entirely, including top connection 1 is under
Connector 2, clearance fit is connected with centralizer body 3 on the cylinder between top connection 1 and lower contact 2, and centralizer body 3 is that two panels fastens knot
Structure, cylindrical gap between top connection 1 and lower contact 2 is connected after being fixed by hexagon socket head cap screw, centralizer body with above connect
Clearance fit on cylinder between first 1 and lower contact 2 so that rotation is generated between centralizer body 3 and upper and lower connector 1,2, to anti-
Only friction phenomenon, the separate structure of centralizer body 3 can be individually replaced centralizer body after centralizer body 3 is worn or is damaged, reduce repair
Expense.
3 outer cylinder surface of centralizer body in the axial direction, the balance weight 4 equipped with six strips being evenly arranged, balance weight 4
It is connect with centralizer body 3 by axis pin 6, bearing 5.
The balance weight 4 is connect by axis pin 6, bearing 5 with centralizer body 3, and 4 middle part of balance weight of strip connects axis pin
6, axis pin 6 is connect with bearing 5, has a distance between 4 outer surface of balance weight and oil pipe, between 4 outer surface of balance weight and oil pipe
Distance be less than the distance between the inside of balance weight 4 and centralizer body 3.
The balance weight 4 of the strip, 4 upper and lower ends of balance weight are fabricated to spherical shape, are conducive to balance weight and are connect with oil pipe
Friction is reduced when touching.
Under theoretical case, when sucker rod is located at oil pipe center, balance weight does not contact balance weight with oil pipe, reduces sucker rod
Promotion resistance, when oil pipe is in flexuosity, sucker rod deviates oil pipe center, one end of tube inner wall contact equilibrium block,
It oppresses balance weight to rotate around axis pin, the other end expenditure of balance weight resists the close of oil pipe, to centering sucker rod, this practicality
Balance weight quantitative design in novel is six, suitable for light crude oil, under the premise of the needs for meeting overcurrent, can be propped up completely
Oil pipe is supportted, the service life of sucker rod is extended, reduces replacement frequency, improves productivity.
The centralizer has both integral type and Split type centralizer by the way that the upper and lower connector of seperated centralizer body clearance fit is arranged
The advantages of, you can the generation of friction phenomenon is prevented, while preventing oil pumping torsion of bar, contactless balance weight righting oil pumping is set
Bar mitigates the friction for contacting generation between sucker rod and oil pipe, while effectively preventing sucker rod from deviateing oil pipe center, improves and takes out
The production efficiency of oil machine, is convenient for changing parts, reduces the human cost and goods and materials cost of maintenance maintenance, advantageous to promote and apply.
Claims (1)
1. one kind supporting contactless proof-wear sucker rod centralising device, including top connection (1) and lower contact (2) entirely, feature exists
In：Clearance fit is connected with centralizer body (3) on cylinder between top connection (1) and lower contact (2), and centralizer body (3) is two panels button
Structure is closed, the cylindrical gap after being fixed by hexagon socket head cap screw between top connection (1) and lower contact (2) is connected, righting
Clearance fit on cylinder between body and top connection (1) and lower contact (2)；
Centralizer body (3) outer cylinder surface in the axial direction, the balance weight (4) equipped with six strips being evenly arranged, balance weight
(4) it is connect with centralizer body (3) by axis pin (6), bearing (5)；The balance weight (4) of the strip, balance weight (4) up and down two
End is fabricated to spherical shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820079146.3U CN208024305U (en) | 2018-01-17 | 2018-01-17 | One kind supporting contactless proof-wear sucker rod centralising device entirely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820079146.3U CN208024305U (en) | 2018-01-17 | 2018-01-17 | One kind supporting contactless proof-wear sucker rod centralising device entirely |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208024305U true CN208024305U (en) | 2018-10-30 |
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ID=63901445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820079146.3U Active CN208024305U (en) | 2018-01-17 | 2018-01-17 | One kind supporting contactless proof-wear sucker rod centralising device entirely |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208024305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445925A (en) * | 2021-08-02 | 2021-09-28 | 杨昭敏 | Roller bit with stable auxiliary drill rod and improved slag removal efficiency for petroleum drilling |
-
2018
- 2018-01-17 CN CN201820079146.3U patent/CN208024305U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113445925A (en) * | 2021-08-02 | 2021-09-28 | 杨昭敏 | Roller bit with stable auxiliary drill rod and improved slag removal efficiency for petroleum drilling |
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