CN2604511Y - Sucker rod contact roller type centralising device - Google Patents
Sucker rod contact roller type centralising device Download PDFInfo
- Publication number
- CN2604511Y CN2604511Y CN 03242165 CN03242165U CN2604511Y CN 2604511 Y CN2604511 Y CN 2604511Y CN 03242165 CN03242165 CN 03242165 CN 03242165 U CN03242165 U CN 03242165U CN 2604511 Y CN2604511 Y CN 2604511Y
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- China
- Prior art keywords
- mobile jib
- sucker rod
- roller
- utility
- model
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- Expired - Fee Related
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Abstract
The utility model discloses a roller type centralizer equipped at a sucker rod. More specially, the utility model provides a roller type eccentric wear-resistance centralizing device linked between the eccentric wear sections at two sucker rods and consisting of a main rod, a plurality of rollers and a bearing pin. The main rod is equipped with two ends, one end being a female thread and the other end being a male thread, all equipped with a spanner channel used for performing a screw joint with the sucker rod by a coupling equipped at the sucker rod. The bearing pin has a static fit with a pinhole at the main rod and with one end of the bearing pin embedded and the other end fixedly connected with the main rod at which is equipped evenly a plurality of rollers and wherein an azimuth is formed between an axial projection of the main rod and the roller of different wheel number. The directions of 2, 4, 6 and 10 at the utility model all can be capable for a support guidance and always prevent the sucker rod from contacting with the internal wall of a oil pipe, assure the oil pipe from suffering an eccentric wear. The utility model is characterized by reliable strength, permanent abrasion resistance, sufficient corrosion resistance and well thermal stability.
Description
Technical field
The utility model relates to a kind of rod-pumped well erection device with the supporting anti-eccentric wear of sucker rod, particularly a kind of sucker rod roller type erection device that connects between two sucker rods of eccentric wear section.
Background technology
At present, the sucker rod of rod-pumped well is that polished rod does not have erection device, and is especially very easily inclined to one side by mill for inclined shaft or lower curved section sucker rod, ground inclined to one side sucker rod and can only eliminate, and then strengthen cost of production.The oil recovery industry thirsts for having the sucker rod erection device to occur.Invented " sucker rod roller type erection device " in person, the patent No.: 02207774.X for this reason.That uses facts have proved that this patent also has unsatisfactory part, shows the roller number and angle is set single, can not satisfy the needs of large-scale production.
Summary of the invention
The purpose of this utility model is to overcome the deficiency of ZL0220774.X and a kind of have reliable pull strength, lasting abrasion resistance, enough corrosion resistance and good heat stability and different according to the degree of eccentric wear is provided, and can select the sucker rod roller type erection device of the roller structure that varying number and different azimuth arrange for use.
The purpose of this utility model is achieved in that by mobile jib, roller and bearing pin and constitutes, two of mobile jib is equipped with and the spin spanner groove of usefulness of sucker rod, spin with rod collar respectively, one of mobile jib is an internal thread, and the other end is an external screw thread, bearing pin and the stationary fit of mobile jib pin shaft hole, one end is immersed oneself in, the other end and mobile jib are affixed, it is characterized in that: roller is arranged on the mobile jib uniformly, the roller of different wheel numbers and the orientation that the mobile jib axis projection is different angles.
It can be one or two that described roller is provided with number, can also be set to three or five, is respectively 180 degree, 90 degree, 60 degree and 36 degree with the axial angulation of mobile jib.
The cylindrical of described roller is the drum type arc, and matches with the radian of tube inner wall, is arranged on uniformly in the groove on each orientation of mobile jib axis projection.
The utility model has the advantages that: it overcomes the deficiencies in the prior art, has reliable pull strength, lasting abrasion resistance, enough corrosion resistance and good heat stability.Its axial tensile strength is 350KN, and radially maximum is held lotus 1.4KN, and be 10 fatigue life
7Inferior heat-resisting oscillation cycle.The support guide that wheel number that this device is provided with and orientation can form 2,4,6,10 directions makes sucker rod under the situation of eccentric wear in various degree, and more selection scheme is arranged.Producing well sucker rod and the utility model are used, and according to the difference of eccentric wear degree, select the structure of different wheel numbers, make oil well reach best economic benefit when using the utility model.
The explanation of accompanying drawing drawing
Fig. 1 is that the wheel number is the utility model structural representation of 1.
Fig. 2 is that the wheel number is the utility model structural representation of 2.
Fig. 3 is that the wheel number is the utility model structural representation of 3.
Fig. 4 is that the wheel number is the utility model structural representation of 5.
The specific embodiment
The utility model is the erection device that connects between two sucker rods of eccentric wear section.Be on the basis of ZL0220774.X, carried out the improvement of the configuration aspects of number of rollers and orientation layout.The utility model is made up of mobile jib 1, bearing pin 2, roller 3 three parts.As Fig. 1, Fig. 2, Fig. 3, Fig. 4, roller 3 of the present utility model is set to 1,2,3,5, and their cylindrical is the drum type arc, be arranged on uniformly on the mobile jib 1, with wheel of mobile jib axis projection angulation such as Fig. 1 be 180 degree; Two wheels such as Fig. 2 are 90 degree; Three wheels such as Fig. 3 are 60 degree; Five wheels such as Fig. 4 are 36 degree.Roller 3 is arranged in the groove of mobile jib uniformly.One of mobile jib 1 is internal thread, and the other end is an external screw thread.Two of mobile jib 1 is equipped with and the spin spanner groove of usefulness of sucker rod, spins with rod collar respectively.The pin shaft hole stationary fit of described bearing pin 2 and mobile jib 1, an end is immersed oneself in, and the other end and mobile jib 1 are affixed.
The internal and external screw thread at two of mobile jib 1 of the present utility model screws with rod collar and is connected, rely on the mobile jib 1 roller 3 radially the axis projection of section intersect 2,4,6 each 10 direction be 180 degree, 90 degree, 60 degree and 36 degree, the curved drum type of roller 3 circular arc cylindricals, the radian of its drum type arc and tube inner wall matches and the tube inner wall support guide, in sucker rod pumps, roller 3 support of in oil pipe, rolling, remain sucker rod and do not contact, guarantee that it is not by mill partially with tube inner wall.
Claims (3)
1, a kind of sucker rod roller type erection device, constitute by mobile jib, roller and bearing pin, two of mobile jib is equipped with and the spin spanner groove of usefulness of sucker rod, spins with rod collar respectively, and one of mobile jib is an internal thread, the other end is an external screw thread, bearing pin and the stationary fit of mobile jib pin shaft hole, an end is immersed oneself in, and the other end and mobile jib are affixed, it is characterized in that: roller is arranged on the mobile jib uniformly, the roller of different wheel numbers and the orientation that the mobile jib axis projection is different angles.
2, sucker rod roller type erection device according to claim 1, it is characterized in that: it can be one or two that described roller is provided with number, three or five be can also be set to, 180 degree, 90 degree, 60 degree and 36 degree are respectively with the axial angulation of mobile jib.
3, sucker rod roller type erection device according to claim 1 and 2 is characterized in that the cylindrical of described roller is the drum type arc, and matches with the radian of tube inner wall, is arranged on uniformly in the groove on each orientation of mobile jib axis projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242165 CN2604511Y (en) | 2003-03-19 | 2003-03-19 | Sucker rod contact roller type centralising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03242165 CN2604511Y (en) | 2003-03-19 | 2003-03-19 | Sucker rod contact roller type centralising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2604511Y true CN2604511Y (en) | 2004-02-25 |
Family
ID=34168616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03242165 Expired - Fee Related CN2604511Y (en) | 2003-03-19 | 2003-03-19 | Sucker rod contact roller type centralising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2604511Y (en) |
-
2003
- 2003-03-19 CN CN 03242165 patent/CN2604511Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |