CN202176277U - Self-lubricating and same-curvature ceramic compound dip rod straightener - Google Patents

Self-lubricating and same-curvature ceramic compound dip rod straightener Download PDF

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Publication number
CN202176277U
CN202176277U CN2011202632991U CN201120263299U CN202176277U CN 202176277 U CN202176277 U CN 202176277U CN 2011202632991 U CN2011202632991 U CN 2011202632991U CN 201120263299 U CN201120263299 U CN 201120263299U CN 202176277 U CN202176277 U CN 202176277U
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CN
China
Prior art keywords
centralizer
nylon sheath
straightening
lubricating
sheath wire
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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 - Fee Related
Application number
CN2011202632991U
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Chinese (zh)
Inventor
李广青
Original Assignee
李广青
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Priority to CN2011202632991U priority Critical patent/CN202176277U/en
Application granted granted Critical
Publication of CN202176277U publication Critical patent/CN202176277U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a self-lubricating and same-curvature ceramic compound dip rod straightener. As a straightening body is not provided with a self-lubricating device, the lubricating effect of liquid generated by an oil well is limited, the service life of the liquid is short, the straightener and an oil pipe are easily damaged, the deflected abrasion preventing effect is poor, the performance is unstable, and the accident rate is high. An abrasion-resistant ceramic straightening body is sleeved on a core shaft of the self-lubricating and same-curvature ceramic compound dip rod straightener; a first nylon sheath straightening body and a second nylon sheath straightening body are arranged at the upper end and the lower end of the abrasion-resistant ceramic straightening body; a limiting retainer ring is arranged at the upper end of the first nylon sheath straightening body; a first graphite column and a second graphite column are embedded on the outer wall of the first nylon sheath straightening body and the second nylon sheath straightening body respectively; and the first nylon sheath straightening body, the second nylon sheath straightening body and the abrasion-resistant ceramic straightening body have the same inner diameter curvature and different outer diameter curvatures. The frication of the self-lubricating and same-curvature ceramic compound dip rod straightener is reduced; the service life of the straightener is prolonged; the oil pipe is protected from abrasion; and the straightening bodies are convenient to detach and replace.

Description

A kind of self-lubricating is with curvature Ceramic Composite beam hanger centralizer
Technical field
The utility model relates to a kind of self-lubricating with curvature Ceramic Composite beam hanger centralizer.
Background technology
In the sucker rod pumping process, need the beam hanger erection device, to avoid the wearing and tearing of oil pipe, beam hanger; All kinds of corrupt practices creep in for present beam hanger erection device, and for example centralizer body is that line contacts with tube inner wall, and centralizer body adopts homogenous material; Self does not have lubricating arrangement, relies on the produced liquid in oil well lubricant effect limited, and application life is short and damage for easily centralizer and oil pipe; Anti-eccentric wear weak effect, unstable properties, accident rate is high; Therefore needs are a kind of wear-resisting, and do not injure the beam hanger centralizer of beam hanger and oil pipe.
The utility model content
The technical problem that the utility model solved provides a kind of simple in structure; Scientific and reasonable; The coefficient of kinetic friction is little, and centralizer body and corresponding oil pipe are all extremely not easy to wear, and the life-span reaches the number in original centralizer life-span and accompanies above self-lubricating with curvature Ceramic Composite beam hanger centralizer.
For solving above-mentioned technical problem, the technical scheme that the utility model is taked:
A kind of self-lubricating is with curvature Ceramic Composite beam hanger centralizer; Its special character is: comprise mandrel, spacing back-up ring, the first nylon sheath wire centralizer body, the second nylon sheath wire centralizer body, wear-resistant ceramic centralizer body, the first graphite post, the second graphite post; Sheathed wear-resistant ceramic centralizer body on the mandrel; The two ends up and down of meninx pottery centralizer body are provided with the first nylon sheath wire centralizer body and the second nylon sheath wire centralizer body respectively, and the upper end of the first nylon sheath wire centralizer body is provided with spacing back-up ring; Be embedded the first graphite post, the second graphite post on the outer wall of the described first nylon sheath wire centralizer body, the second nylon sheath wire centralizer body respectively; The internal diameter curvature of the described first nylon sheath wire centralizer body, the second nylon sheath wire centralizer body and wear-resistant ceramic centralizer body is identical, external diameter is different.
The first above-mentioned nylon sheath wire centralizer body, the external diameter of the second nylon sheath wire centralizer body are greater than the external diameter of wear-resistant ceramic centralizer body.
Above-mentioned wear-resistant ceramic centralizer body is connected through concaveconvex structure with the first nylon sheath wire centralizer body, the second nylon sheath wire centralizer body at two ends.
Compared with prior art, the beneficial effect of the utility model:
The utility model has adopted pottery and nylon combination, and on the nylon sheath wire centralizer body, the lubricating graphite post has been installed, and ceramic centralizer body is three and forms with the arc surface of curvature with tube inner wall; Making centralizer body and tube inner wall is that face contacts, and contact pressure is little, and frictional force is little; And graphite lubrication is arranged, both utilized wear-resistant ceramic excellent friction performance, again because the protection of nylon sheath wire; Overcome ceramic frangible defective,, reduced frictional force with the use of tube inner wall with curvature structure and lubricating graphite; Protected oil pipe not to be worn the application life that has prolonged centralizer, and the use of back-up ring can be played position-limiting action to centralizer body, replacing centralizer body for convenience detach again.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is elaborated.
Referring to Fig. 1; The utility model comprises mandrel 1, spacing back-up ring 2, the first nylon sheath wire centralizer body 3, the second nylon sheath wire centralizer body 7, wear-resistant ceramic centralizer body 5, the first graphite post 4, the second graphite post 6; Sheathed wear-resistant ceramic centralizer body 5 on the mandrel 1, the two ends up and down of meninx pottery centralizer body 5 are provided with the first nylon sheath wire centralizer body 3 and the second nylon sheath wire centralizer body 7 respectively, play the ceramic centralizer body of protection and alleviate the effect of impacting; The upper end of the first nylon sheath wire centralizer body 3 is provided with spacing back-up ring 2; Play position-limiting action, in operation process, remove back-up ring and be replaceable wear-resistant ceramic centralizer body and nylon sheath wire centralizer body, very convenient; Be embedded the first graphite post 4, the second graphite post 6 on the outer wall of the described first nylon sheath wire centralizer body 3, the second nylon sheath wire centralizer body 7 respectively, the graphite post, plays and increases sliding effect in the tube inner wall friction with the nylon centralizer body; The internal diameter curvature of the described first nylon sheath wire centralizer body 3, the second nylon sheath wire centralizer body 7 and wear-resistant ceramic centralizer body 5 is identical, external diameter is different; Increase contact area, reduced pressure, thereby reduced the wearing and tearing of tube inner wall and centralizer body; Surface finish; Hardness is big, and finish is high, and body is wear-resisting.
The external diameter of the above-mentioned first nylon sheath wire centralizer body 3, the second nylon sheath wire centralizer body 7 is greater than the external diameter of wear-resistant ceramic centralizer body 5; Protection wear-resistant ceramic centralizer body 5 is not damaged by mechanical shock in going into the well process; Because the said first nylon sheath wire centralizer body 3, the second nylon sheath wire centralizer body, 7 external diameters are big, go into behind the well at first wearing part and be the first nylon sheath wire centralizer body 3, the second nylon sheath wire centralizer body 7, the graphite post that is embedded in simultaneously on the nylon sheath wire centralizer body is coated in tube inner wall; Graphite lubrication is arranged when wear-resistant ceramic centralizer body contact tube inner wall; Reduce friction factor, increase the service life, nylon centralizer body and wear-resistant ceramic centralizer body are through the end face concaveconvex structure relative position that is connected to a fixed; And making rotation flexibly between centralizer body and the mandrel, the assurance curved surface all can be close to tube inner wall with any time.
The first nylon sheath wire centralizer body 3 at above-mentioned wear-resistant ceramic centralizer body 5 and two ends, the second nylon sheath wire centralizer body 7 are connected through concaveconvex structure, make it to fuse, and rotate flexibly with respect to mandrel, guarantee curved surface with all can be close to tube inner wall any time.

Claims (3)

1. a self-lubricating is with curvature Ceramic Composite beam hanger centralizer; It is characterized in that: comprise mandrel (1), spacing back-up ring (2), the first nylon sheath wire centralizer body (3), the second nylon sheath wire centralizer body (7), wear-resistant ceramic centralizer body (5), the first graphite post (4), the second graphite post (6); Mandrel (1) is gone up sheathed wear-resistant ceramic centralizer body (5); The two ends up and down of meninx pottery centralizer body (5) are provided with the first nylon sheath wire centralizer body (3) and the second nylon sheath wire centralizer body (7) respectively, and the upper end of the first nylon sheath wire centralizer body (3) is provided with spacing back-up ring (2); Be embedded the first graphite post (4), the second graphite post (6) on the outer wall of the described first nylon sheath wire centralizer body (3), the second nylon sheath wire centralizer body (7) respectively; The internal diameter curvature of the described first nylon sheath wire centralizer body (3), the second nylon sheath wire centralizer body (7) and wear-resistant ceramic centralizer body (5) is identical, external diameter is different.
2. a kind of self-lubricating according to claim 1 is characterized in that with curvature Ceramic Composite beam hanger centralizer: the external diameter of the described first nylon sheath wire centralizer body (3), the second nylon sheath wire centralizer body (7) is greater than the external diameter of wear-resistant ceramic centralizer body (5).
3. a kind of self-lubricating according to claim 1 and 2 is characterized in that with curvature Ceramic Composite beam hanger centralizer: described wear-resistant ceramic centralizer body (5) is connected through concaveconvex structure with the first nylon sheath wire centralizer body (3), the second nylon sheath wire centralizer body (7) at two ends.
CN2011202632991U 2011-07-25 2011-07-25 Self-lubricating and same-curvature ceramic compound dip rod straightener Expired - Fee Related CN202176277U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202632991U CN202176277U (en) 2011-07-25 2011-07-25 Self-lubricating and same-curvature ceramic compound dip rod straightener

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202632991U CN202176277U (en) 2011-07-25 2011-07-25 Self-lubricating and same-curvature ceramic compound dip rod straightener

Publications (1)

Publication Number Publication Date
CN202176277U true CN202176277U (en) 2012-03-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202632991U Expired - Fee Related CN202176277U (en) 2011-07-25 2011-07-25 Self-lubricating and same-curvature ceramic compound dip rod straightener

Country Status (1)

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CN (1) CN202176277U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278079A (en) * 2011-07-25 2011-12-14 李广青 Self-lubricating same-curvature ceramic composite sucker rod centralizer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278079A (en) * 2011-07-25 2011-12-14 李广青 Self-lubricating same-curvature ceramic composite sucker rod centralizer

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C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120328

Termination date: 20140725