CN205577882U - Autogyration eccentric wear prevention sucker rod centralizer - Google Patents
Autogyration eccentric wear prevention sucker rod centralizer Download PDFInfo
- Publication number
- CN205577882U CN205577882U CN201620373255.7U CN201620373255U CN205577882U CN 205577882 U CN205577882 U CN 205577882U CN 201620373255 U CN201620373255 U CN 201620373255U CN 205577882 U CN205577882 U CN 205577882U
- Authority
- CN
- China
- Prior art keywords
- ball
- groove
- sucker rod
- pair
- pole
- 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 discloses an autogyration eccentric wear prevention sucker rod centralizer, including well core rod, well core rod's both ends all are provided with the screw, and well core rod goes up the cover and sets upright or straight the cover, set upright or straight and are provided with a plurality of slots on set lateral surface, and the slot is spiral distribution, and every ditch inslot all is provided with a plurality ofly to the ball, and are every to being provided with the spring shim between the ball, whenever include first ball and second ball to the ball, all are connected with a pair of sand grip on every slot, set up the roll cage on the second ball, and the roll cage is connected with a pair of sand grip. An autogyration eccentric wear prevention sucker rod centralizer is through setting up the slot, and the power messenger that the fluid flows producedly in the slot sets upright or straight set rotation, makes to set upright or straight to overlap evenly to receive the mill, first ball and second ball become rolling friction through the sliding friction who rights between the body and oil pipe, also are rolling friction between first ball and the second ball, greatly reduced wearing and tearing, also be rolling friction between first ball and well core rod simultaneously, make and rightting the body and rotate more easily, the messenger rights and evenly receives the mill.
Description
Technical field
This utility model belongs to well rod technical field, is specifically related to a kind of spinning eccentric wear prevention pumping
Bar centralizer.
Background technology
The oil pumping rod centering device that currently used oil well is conventional has of all kinds, generally there is problems in that
(1) existing centralizer centralizer body groove mostly is straight trough, in sliding up and down friction process, it is easy to
Monolateral being ground, centralizer body abrasion is uneven；(2) centralizer only maintains righting function by abrasion body, with
The lengthening in the cycle of use, the serious wear of centralizer body, service life is the longest, thus can not play anti-bias
The effect of mill.
Utility model content
The purpose of this utility model is to provide a kind of spinning proof-wear sucker rod centralising device, solves existing
The problem that the abrasion of oil pumping rod centering device in use centralizer body is uneven.
This utility model be employed technical scheme comprise that, a kind of spinning proof-wear sucker rod centralising device, bag
Including center-pole, the two ends of center-pole are provided with screw thread, center-pole are cased with supporting positive cover, outside supporting positive cover
Being provided with some grooves on face, groove is in spiral distribution, is provided with some to ball in every groove,
Being provided with spring shim between every pair of ball, every pair of ball includes the first ball and the second ball, every ditch
Being respectively connected with a pair raised line on groove, the distance between a pair raised line is equal with the width of groove, the first ball
Being positioned at groove, the second ball, between a pair raised line, the second ball arranges roll cage, roll cage
It is connected with a pair raised line.
Feature of the present utility model also resides in,
Roll cage and a pair raised line welding.
First ball contacts with center-pole.
One end of center-pole is provided with external screw thread, and the other end of center-pole is provided with female thread.
Some groove is uniformly arranged, some equal to the ball spaced set in every groove, all rollings
Spacing between pearl is equal.
Every groove is all in the Spiral distribution of 65 ± 1 ° of lift angles.
The beneficial effects of the utility model are: a kind of spinning proof-wear sucker rod centralising device is by arranging ditch
Groove, the fluid produced power that flows in the trench makes supporting positive cover rotate, makes supporting positive cover uniformly be ground；First
Ball and the sliding friction through between centralizer body and oil pipe of second ball become rolling friction, the first ball and
Also it is rolling friction between two balls, greatly reduces abrasion, between the first ball and center-pole be also simultaneously
Rolling friction, makes centralizer body be easier to rotate, makes righting uniformly be ground.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model a kind of spinning proof-wear sucker rod centralising device；
Fig. 2 is the top view of Fig. 1.
In figure, 1. center-pole, 2. supporting positive cover, 3. ball, 3-1. the first ball, 3-2. the second ball, 4.
Spring shim, 5. raised line, 6. roll cage, 7. groove.
Detailed description of the invention
With detailed description of the invention, this utility model is described in detail below in conjunction with the accompanying drawings.
This utility model provides a kind of spinning proof-wear sucker rod centralising device, as depicted in figs. 1 and 2,
Including center-pole 1, the two ends of center-pole 1 are provided with screw thread, and center-pole 1 is cased with supporting positive cover 2,
Being provided with some grooves 7 on supporting positive cover 2 lateral surface, groove 7 is in spiral distribution, in every groove 7
Being provided with some to ball 3, be provided with spring shim 4 between every pair of ball 3, every pair of ball 3 wraps
Including the first ball 3-1 and the second ball 3-2, every groove 7 is respectively connected with a pair raised line 5, a pair convex
Distance between bar 5 is equal with the width of groove 7, and the first ball 3-1 is positioned at groove 7, the second rolling
Pearl 3-2, between a pair raised line 5, the second ball 3-2 arranges roll cage 6, roll cage 6 and
Raised line 5 is connected；
Roll cage 6 welds with a pair raised line 5；
First ball 3-1 contacts with center-pole 1；
One end of center-pole 1 is provided with external screw thread, and the other end of center-pole 1 is provided with female thread；
Some groove 7 is uniformly arranged, some equal to ball 3 spaced set in every groove 7,
Spacing between all balls 3 is equal；
Every groove 7 is all in the Spiral distribution of 65 ± 1 ° of lift angles.
The operation principle of this utility model a kind of spinning proof-wear sucker rod centralising device is: outside supporting positive cover 2
Being provided with some grooves 7 on side, groove 7 is in spiral distribution, and fluid flows in groove 7 and produced
Power make supporting positive cover 2 rotate, thus reach the purpose that supporting positive cover 2 is uniformly ground；
It is provided with some to ball 3 in every groove 7, between every pair of ball 3, is provided with spring shim
4, every pair of ball 3 includes that the first ball 3-1 and the second ball 3-2, the first ball 3-1 are positioned at groove 7
In, the second ball 3-2 is between a pair raised line 5, by original between the first ball 3-1 and oil pipe
Face contact becomes Structure deformation, and friction is become rolling friction from sliding friction, the second ball 3-2 and center
Bar 1 is same；Spring shim 4 can force the first ball 3-1 and the second ball 3-2 to press to outside,
Simultaneously when the second ball 3-2 stress, move to the first ball 3-1, at roll cage 6 and the second ball
Producing space between 3-2, crude oil can enter the first ball 3-1 and the second ball 3-2 by this space
Inside, thus play self-lubricating function.
A kind of spinning proof-wear sucker rod centralising device of the present utility model is by arranging groove 7, and fluid exists
In groove 7, the produced power of flowing makes supporting positive cover 2 rotate, and makes supporting positive cover 2 uniformly be ground；First ball
3-1 and second ball 3-2 sliding friction through between centralizer body 2 and oil pipe become rolling friction, the first rolling
Also it is rolling friction between pearl 3-1 and the second ball 3-2, greatly reduces abrasion, simultaneously the first ball
Also it is rolling friction between 3-1 and center-pole 1, makes centralizer body 2 be easier to rotate, make righting 2 uniformly be subject to
Mill.
Claims (6)
1. a spinning proof-wear sucker rod centralising device, it is characterised in that: include center-pole (1), in
The two ends of core bar (1) are provided with screw thread, and center-pole (1) is cased with supporting positive cover (2), supporting positive cover (2)
Being provided with some grooves (7) on lateral surface, groove (7) is in spiral distribution, in every groove (7)
It is provided with some to ball (3), between every pair of ball (3), is provided with spring shim (4), every pair
Ball (3) includes the first ball (3-1) and the second ball (3-2), and every groove (7) is all connected with
Having a pair raised line (5), the distance between a pair raised line (5) is equal with the width of groove (7), and first
Ball (3-1) is positioned at groove (7), and the second ball (3-2) is positioned between a pair raised line (5),
Arranging roll cage (6) on second ball (3-2), roll cage (6) is connected with a pair raised line (5).
A kind of spinning proof-wear sucker rod centralising device the most according to claim 1, it is characterised in that:
Described roll cage (6) welds with a pair raised line (5).
A kind of spinning proof-wear sucker rod centralising device the most according to claim 1, it is characterised in that:
Described first ball (3-1) contacts with center-pole (1).
A kind of spinning proof-wear sucker rod centralising device the most according to claim 1, it is characterised in that:
One end of described center-pole (1) is provided with external screw thread, and the other end of center-pole (1) is provided with female thread.
A kind of spinning proof-wear sucker rod centralising device the most according to claim 1, it is characterised in that:
Described some grooves (7) are uniformly arranged, some impartial to ball (3) in every groove (7)
Spacing is arranged, and the spacing between all balls (3) is equal.
6. according to a kind of spinning proof-wear sucker rod centralising device described in any one of claim 1-5, its
It is characterised by: described every groove (7) is all in the Spiral distribution of 65 ± 1 ° of lift angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620373255.7U CN205577882U (en) | 2016-04-28 | 2016-04-28 | Autogyration eccentric wear prevention sucker rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620373255.7U CN205577882U (en) | 2016-04-28 | 2016-04-28 | Autogyration eccentric wear prevention sucker rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205577882U true CN205577882U (en) | 2016-09-14 |
Family
ID=56858738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620373255.7U Expired - Fee Related CN205577882U (en) | 2016-04-28 | 2016-04-28 | Autogyration eccentric wear prevention sucker rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205577882U (en) |
-
2016
- 2016-04-28 CN CN201620373255.7U patent/CN205577882U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20180428 |