CN201943610U - Sucker rod wear-resisting idler wheel centering device - Google Patents
Sucker rod wear-resisting idler wheel centering device Download PDFInfo
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- CN201943610U CN201943610U CN201120005782XU CN201120005782U CN201943610U CN 201943610 U CN201943610 U CN 201943610U CN 201120005782X U CN201120005782X U CN 201120005782XU CN 201120005782 U CN201120005782 U CN 201120005782U CN 201943610 U CN201943610 U CN 201943610U
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- bearing pin
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Abstract
The utility model discloses a sucker rod wear-resisting idler wheel centering device, comprising a centering device main body which is provided with at least two idler wheel slots. Each idler wheel slot is provided with an idler wheel, and the diameter of the idler wheel is greater than that of the centering device main body; the idler wheels are supported on hinge pins in a sliding way by wear-resisting bushes, and the hinge pins are fixedly arranged on the centering device main body and are intersected mutually in space; the idler wheel wear-resisting bushes are fixedly embedded in central holes of the idler wheels; the hinge pins are fixedly sheathed with the hinge pin wear-resisting bushes; and the positions of the idler roller wheel wear-resisting bushes correspond to the positions of the hinge pin wear-resisting bushes. The idler wheel centering device has the advantages that the wear-resisting performance is good, the service life is long, and the operation is stable.
Description
Technical field
The utility model relates to the oil-field oil pumper tool, relates in particular to the improvement of oil pumper roller type oil pumping rod centering device structure.
Background technology
The widely used oil pumper in oil field all over the world all is to connect and drive the plunger that is positioned at the oil well depths by sucker rod to extract crude oil out ground at present.Usually the degree of depth of oil well is all more than hundreds of rice, the more piece sucker rod need be coupled together use by connector during use; Because sucker rod is an elongate rod, the less stable of sucker rod remains at the center of oily wall casing in order to make sucker rod in the reciprocal reciprocating oil pumping motion, and people must just be installed an oil pumping rod centering device additional every several bars.
Existing roller type oil pumping rod centering device is made up of centralizer main body and roller and bearing pin, is processed with axial strip hole by certain space crossed angle on the centralizer main body, by bearing pin roller is housed in the hole, and bearing pin is fixedly installed on the centralizer main body; Roller directly is loaded on the bearing pin slidably, drive roller and back and forth rotate along with sucker rod moves up and down during work, with set upright beam hanger and reduce beam hanger and oil pipe between wearing and tearing.But owing to be subjected to the restriction of oil pipe caliber size, and the roller thinner thickness, the sliding contact surface between roller and the bearing pin is very little, is easy to form wearing and tearing even eccentric wear between roller and bearing pin, and application life is short.The down-hole has silt particle or other mechanical admixture again often in addition, aggravated the rate of wear between roller and bearing pin especially, and the quickening of wearing and tearing, not only make centralizer lose centralizing function, cause the friction damage between beam hanger and oil pipe, and can cause roller stuck sucker rod, the holddown phenomenon appears then, both increase maintenance cost, influenced the oil well ordinary production, reduced production efficiency.
The utility model content
At the above-mentioned deficiency of existing in prior technology, technical problem to be solved in the utility model is, provides that a kind of anti-wear performance is good, long service life, the wear-resisting rolling wheel centralizer of sucker rod simple in structure.
In order to address the above problem, the wear-resisting rolling wheel centralizer of sucker rod of the present utility model comprises the centralizer main body, is provided with two roller grooves on described centralizer main body at least, be provided with a roller in each roller groove, the diameter of roller is greater than the diameter of centralizer main body; On bearing pin, bearing pin is fixedly installed on the centralizer main body this roller, the mutual space crossed setting of each bearing pin by the anti-wearing liner sliding bearing.
After adopting said structure, because on bearing pin, and bearing pin is fixedly installed on the centralizer main body roller that is arranged in centralizer main body roller groove by the anti-wearing liner sliding bearing, this structure makes direct contact the between existing roller body and bearing pin body, become and be the sliding-contact between anti-wearing liner, and anti-wearing liner adopts antifriction alloy to make, and not only anti-wear performance is good, and frictional resistance is little, and slide flexibly, it is reliable to set upright function-stable, can guarantee to work effectively long service life for a long time.It is convenient that this bush type structure had both had working service simultaneously, and advantage of simple structure has the splendid ratio of performance to price again, effectively reduces use cost, has improved production efficiency.
A kind of preferred implementation of the present utility model is embedded with the roller anti-wearing liner regularly in the centre bore of described roller, be set with the bearing pin anti-wearing liner on the described bearing pin regularly, and described roller anti-wearing liner is corresponding with bearing pin anti-wearing liner position.This structure makes between bearing pin anti-wearing liner and the anti-lining of roller and constitutes sliding pair, and wear-resisting effect is better, long service life.
Further embodiment of the present utility model, described centralizer main body is provided with three roller grooves; Space crossed angle between adjacent two bearing pins is 60 °.This structure make roller well tubular wall stressed more reasonable evenly, have the more reliable and more stable effect of setting upright.
Description of drawings
Below in conjunction with the drawings and specific embodiments the wear-resisting rolling wheel centralizer of the utility model sucker rod is described in further detail.
Fig. 1 is the topology view of a kind of embodiment of the wear-resisting rolling wheel centralizer of the utility model sucker rod.
Among the figure, 1-centralizer main body, 2-roller anti-wearing liner, 3-bearing pin, 4-bearing pin anti-wearing liner, 5-roller, 6-roller groove.
The specific embodiment
The wear-resisting rolling wheel centralizer of sucker rod as shown in Figure 1, this centralizer comprises centralizer main body 1, three roller grooves 6 are set on the centralizer main body 1, roller groove 6 is for controlling the race that runs through of centralizer main body 1 axial setting, be provided with roller 5 in roller groove 6, this roller 5 is made by the novel nano synthesized polymer material, makes roller 5 have high strength, self-lubricating, abrasion-proof corrosion-proof, long-lived effect, reduced the frictional resistance between roller and well tubular wall effectively ,] operation more steady.Mode by interference fit in the centre bore of roller 5 is embedded with roller anti-wearing liner 2 regularly; On bearing pin 3, be set with bearing pin anti-wearing liner 4 regularly; Corresponding mutually roller anti-wearing liner 2 and the bearing pin anti-wearing liner 4 in position constituted a sliding pair.Two above-mentioned anti-wearing liners all adopt high abrasion non-corrosive alloy material to make.Roller 5 is supported on the bearing pin 3 slidably by roller anti-wearing liner 2 and bearing pin anti-wearing liner 4, and bearing pin 3 is installed on the centralizer main body 1 regularly by the two ends riveted way again.The axial line of each bearing pin 3 is 60 ° space crossed setting each other, and the diameter of each roller 5 is all greater than the diameter of centralizer main body 1, thereby makes the outer rim of roller 5 stretch out the cylinder of centralizer main body 1 and bring into play the guiding centralizing function.Also be provided with the thread groove of indent at the two ends of centralizer main body 1, so that be connected with adjacent sucker rod.
Above-mentionedly only enumerated a kind of preferred implementation of the present utility model, but the utility model is not limited thereto, it also has a lot of the improvement and conversion, as being not limited to three rollers and roller groove on the centralizer main body, can select to use 2～5 rollers or more a plurality of as the case may be; Two anti-wearing liners that anti-wearing liner also is not limited to be oppositely arranged, setting-in anti-wearing liner on roller only, or suit anti-wearing liner etc. on bearing pin only.
Claims (3)
1. wear-resisting rolling wheel centralizer of sucker rod, comprise centralizer main body (1), it is characterized in that: on described centralizer main body (1), be provided with two roller grooves (6) at least, be provided with a roller (5) in each roller groove (6), the diameter of roller (5) is greater than the diameter of centralizer main body (1); On bearing pin (3), bearing pin (3) is fixedly installed on the centralizer main body (1) this roller (5), the mutual space crossed setting of each bearing pin (3) by the anti-wearing liner sliding bearing.
2. the wear-resisting rolling wheel centralizer of sucker rod according to claim 1, it is characterized in that: be embedded with roller anti-wearing liner (2) in the centre bore of described roller (5) regularly, be set with bearing pin anti-wearing liner (4) on the described bearing pin (3) regularly, described roller anti-wearing liner (2) is corresponding with bearing pin anti-wearing liner (4) position.
3. the wear-resisting rolling wheel centralizer of sucker rod according to claim 1 and 2 is characterized in that: described centralizer main body (1) is provided with three roller grooves (6); Space crossed angle between adjacent two bearing pins (3) is 60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120005782XU CN201943610U (en) | 2011-01-11 | 2011-01-11 | Sucker rod wear-resisting idler wheel centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120005782XU CN201943610U (en) | 2011-01-11 | 2011-01-11 | Sucker rod wear-resisting idler wheel centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201943610U true CN201943610U (en) | 2011-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120005782XU Expired - Fee Related CN201943610U (en) | 2011-01-11 | 2011-01-11 | Sucker rod wear-resisting idler wheel centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201943610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323601A (en) * | 2021-06-30 | 2021-08-31 | 江苏力克石油机械有限公司 | Radial adjustment type sucker rod centralizer |
-
2011
- 2011-01-11 CN CN201120005782XU patent/CN201943610U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113323601A (en) * | 2021-06-30 | 2021-08-31 | 江苏力克石油机械有限公司 | Radial adjustment type sucker rod centralizer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110824 Termination date: 20120111 |