CN2551757Y - Ball-sucker rod wear-proof device - Google Patents
Ball-sucker rod wear-proof device Download PDFInfo
- Publication number
- CN2551757Y CN2551757Y CN 02237546 CN02237546U CN2551757Y CN 2551757 Y CN2551757 Y CN 2551757Y CN 02237546 CN02237546 CN 02237546 CN 02237546 U CN02237546 U CN 02237546U CN 2551757 Y CN2551757 Y CN 2551757Y
- Authority
- CN
- China
- Prior art keywords
- ball
- box cupling
- sucker rod
- main body
- rolling body
- 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 - Lifetime
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Abstract
The utility model discloses a ball type oil-pumped rod wear preventer, which comprises a main hoop body 3 with threads at two ends, a rolling body 9 is arranged on the main hoop body 3, baffle rings 5 are arranged at the two ends of the rolling body 9, the rolling body 9 consists of a ball holding rack 2 and balls 1, corresponding ball running grooves 10 are arranged on the ball holding rack 2 and the main hoop body 3, the balls 1 are inserted in the ball running grooves 10, as the ball is adopted as the rolling body, the contact interval with the inner wall of an oil pipe is small, in addition, the ball can circumferentially and integrally revolve along the ball holding rack, so the ball has wear resistance and corrosion resistance, not only the wear of the oil-pumped bar can be prevented, but also the oil pipe is not harmed; the structure is simple, the size is small, and the utility model can be applied to various inclined wells and horizontal wells.
Description
The utility model relates to a kind of oil field with ball-type sucker rod abrasionproof device, belongs to the sucker rod pumping aid.
As everyone knows, be in the oil pipe center, on the rod string oil pumping rod centering device will be installed, prevent rod sag, reduce the wearing and tearing of sucker rod and oil pipe for making sucker rod.On-the-spot oil pumping rod centering device commonly used is the roller type centralizer, " the petroleum production engineering handbook discloses two kinds of roller type oil pumping rod centering devices, a kind of is three wheeled, a kind of is four-wheel-type, but because the roller of these two kinds of centralizers moves back and forth in the permanent position of tube inner wall for a long time, make oil pipe be worn into groove and cause injury such as burn into wearing and tearing, and the rotation of roller is affected, and such abrasionproof device axial dimension is big, and its scope of application is restricted.
The purpose of this utility model provides a kind of ball-type oil pumping rod centering device simple in structure, realizes the wear-resisting, corrosion-resistant of sucker rod and oil pick-up tube, rotates flexibly long service life.
For achieving the above object, ball-type sucker rod abrasionproof device of the present utility model, two ends have the box cupling main body of screw thread, the box cupling main body is provided with rolling element, the rolling element two ends are provided with baffle ring, rolling element is by ball retainer and ball) constitute, have corresponding ball rotation slot on ball retainer and the box cupling main body, ball is embedded in the ball rotation slot.
The utility model adopts ball to make rolling element, and is little with the tube inner wall contact gap, and because ball can turn round along the ball retainer circumference is whole, so wear-resisting, corrosion-resistant, can prevent the sucker rod wearing and tearing, do not injure oil pipe again; Simple in structure, size is little, can use in various hole deviations and horizontal well.
Accompanying drawing 1 is a structure sectional view of the present utility model.
Accompanying drawing 2 is the structure sectional view of another embodiment of the utility model.
Be described further below in conjunction with accompanying drawing.
As shown in Figure 1, box cupling main body 3 two ends of ball-type sucker rod abrasionproof device have screw thread, are set with ball retainer 2 on the box cupling main body 3, have corresponding ball rotation slot 10 on ball retainer 2 and the box cupling main body 3, ball 1 is embedded in the ball rotation slot 10, and ball 1 can prolong the circumference unitary rotation.Ball retainer 2 all has groove with being connected of box cupling main body 3, baffle ring 5 on the end face, be equipped with little ball 4.Little ball 4, ball retainer 2, baffle ring 5 are sleeved on the box cupling main body 5 successively.
Accompanying drawing 2 is another embodiment of the present utility model, and this box cupling main body is made up of box cupling upper body 6 and box cupling lower body 7, has corresponding ball rotation slot 10 on ball retainer 2 and the box cupling lower body 7, and ball 1 prolongs the circumference unitary rotation.Ball retainer 2, box cupling main body 6 are sleeved on the box cupling lower body 7 successively.
Claims (2)
1, a kind of ball-type sucker rod abrasionproof device, comprise that two ends have the box cupling main body (3) of screw thread, box cupling main body (3) is provided with rolling element (9), rolling element (9) two ends are provided with baffle ring (5), it is characterized in that: described rolling element (9) is made of ball retainer (2) and ball (1), have corresponding ball rotation slot (10) on ball retainer (2) and the box cupling main body (3), ball (1) is embedded in the ball rotation slot (10).
2, ball-type sucker rod abrasionproof device according to claim 1, it is characterized in that: described box cupling main body (3) is made up of box cupling upper body (6) and box cupling lower body (7), and ball retainer (2), box cupling upper body (6) are sleeved on the box cupling lower body (7) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237546 CN2551757Y (en) | 2002-06-07 | 2002-06-07 | Ball-sucker rod wear-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02237546 CN2551757Y (en) | 2002-06-07 | 2002-06-07 | Ball-sucker rod wear-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2551757Y true CN2551757Y (en) | 2003-05-21 |
Family
ID=33711472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02237546 Expired - Lifetime CN2551757Y (en) | 2002-06-07 | 2002-06-07 | Ball-sucker rod wear-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2551757Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094584A (en) * | 2009-12-14 | 2011-06-15 | 牛子久 | Double-acting type drill stem stabilizing device |
| CN103643903A (en) * | 2013-12-03 | 2014-03-19 | 中国石油天然气股份有限公司 | Inside and outside centering guide for well repair in oil field |
| CN108035685A (en) * | 2018-01-03 | 2018-05-15 | 西南石油大学 | A kind of ball antifriction pipe nipple |
-
2002
- 2002-06-07 CN CN 02237546 patent/CN2551757Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094584A (en) * | 2009-12-14 | 2011-06-15 | 牛子久 | Double-acting type drill stem stabilizing device |
| CN103643903A (en) * | 2013-12-03 | 2014-03-19 | 中国石油天然气股份有限公司 | Inside and outside centering guide for well repair in oil field |
| CN108035685A (en) * | 2018-01-03 | 2018-05-15 | 西南石油大学 | A kind of ball antifriction pipe nipple |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120607 Granted publication date: 20030521 |