CN221373488U - Sucker rod centralizer - Google Patents
Sucker rod centralizer Download PDFInfo
- Publication number
- CN221373488U CN221373488U CN202323160151.7U CN202323160151U CN221373488U CN 221373488 U CN221373488 U CN 221373488U CN 202323160151 U CN202323160151 U CN 202323160151U CN 221373488 U CN221373488 U CN 221373488U
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- CN
- China
- Prior art keywords
- sucker rod
- fixed
- arc
- sliding
- centralizer
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 26
- 239000010959 steel Substances 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 21
- 238000010168 coupling process Methods 0.000 claims abstract description 21
- 238000005859 coupling reaction Methods 0.000 claims abstract description 21
- 239000012634 fragment Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000005086 pumping Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The utility model discloses a sucker rod centralizer, which comprises two fixing hoops, a sucker rod and a sucker rod coupling, wherein six arc-shaped steel sheets are uniformly fixed between the two fixing hoops, sliding holes are formed in the middle of each arc-shaped steel sheet, a short shaft movably penetrates through the sliding holes, a spring A is sleeved on the surface of the short shaft, a roller is arranged at the front end of the short shaft, a baffle plate larger than the aperture of the sliding holes is fixed at the rear end of the short shaft, an arc-shaped elastic sheet is fixed at one side of the baffle plate far away from the short shaft, and two ends of each arc-shaped elastic sheet are in sliding connection with the surface of the sucker rod coupling. The utility model relates to the technical field of centralizers. When the sucker rod centralizer is used, the centralizer is contacted with the well wall instead of the arched steel sheet along with the lowering of the sucker rod into the well, friction is not generated between the arched steel sheet and the well wall in the lower process, rolling friction is generated between the roller and the well wall, the friction force is relatively small, the lowering resistance is reduced, and the arched steel sheet is not damaged due to friction.
Description
Technical Field
The utility model relates to the technical field of centralizers, in particular to a sucker rod centralizer.
Background
The centralizer is arranged on the sucker rod to centralize the sucker rod, so that a certain gap is kept between the outer surface of the sucker rod and the inner surface of the oil pipe, and eccentric wear of the sucker rod and the inner wall of the oil pipe is avoided. The existing clamp type centralizer is affected by factors such as the tolerance of the outer diameter of a sucker rod, the environmental temperature of the centralizer and the like, the locking capacity of the centralizer is easy to drop, the position of the centralizer is caused, and when the position of the centralizer is incorrect, the centralizer cannot play a role in preventing eccentric wear. When the sucker rod is subjected to strong vibration or impact, the centralizer or the sucker rod is also easy to damage due to the vibration.
The utility model of the searched patent number CN218265820U discloses a sucker rod centralizer, which forms a centralizing structure similar to a conventional elastic centralizer through six arched steel sheets and two fixing hoops, wherein in the centralizing structure, two spring sliding seats and six inner arched sheets integrally form an inner supporting piece, and the inner arched sheets are connected with the arched steel sheets through abutting elastic sheets, so that when the sucker rod is subjected to strong vibration or impact, the sucker rod centralizer can have better buffering and damping effects, and the sucker rod or the centralizer is prevented from being damaged due to vibration.
The prior art village described above is somewhat deficient, for example; when the centralizer is lowered into a well along with the sucker rod, six arched steel sheets are inevitably contacted with a well wall, friction force can influence the lowering of the centralizer, and friction force can damage the arched steel sheets to influence the service life of the centralizer.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a sucker rod centralizer, which aims to solve the problems.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a sucker rod centralizer, includes fixed hoop, sucker rod and sucker rod coupling, fixed hoop includes two, two evenly be fixed with six bow-shaped steel sheets between the fixed hoop, the slide hole has been seted up at the middle part of bow-shaped steel sheet to the inside activity of slide hole is run through there is the minor axis, the surface cover of minor axis is equipped with spring A, the front end of minor axis is provided with the gyro wheel, the rear end of minor axis is fixed with the separation blade that is greater than the slide hole aperture, one side that the separation blade was kept away from the minor axis is fixed with bow-shaped shell fragment to the both ends of bow-shaped shell fragment all with the surface sliding connection of sucker rod coupling.
Preferably, the two fixing hoops are fixed on the surfaces of the two sucker rods respectively through bolts.
Preferably, a sliding groove is formed in the surface of the sucker rod coupling, two sliding blocks are slidably arranged in the sliding groove, and the tops of the two sliding blocks are respectively fixed with two ends of the arc-shaped elastic sheet.
Preferably, six sliding grooves are formed in total, and the six sliding grooves are uniformly distributed on the periphery of the sucker rod coupling.
Preferably, a spring B is fixed on one side of the sliding block, and a connecting block is fixed on one end, far away from the sliding block, of the spring B, and is fixed on the surface of the sucker rod coupling.
Preferably, the two sucker rods are connected through a sucker rod coupling.
Advantageous effects
The utility model provides a sucker rod centralizer. The beneficial effects are as follows:
When the sucker rod centralizer is used, the centralizer is contacted with the well wall instead of the arched steel sheet along with the lowering of the sucker rod into the well, friction is not generated between the arched steel sheet and the well wall in the lower process, rolling friction is generated between the roller and the well wall, the friction force is relatively small, the lowering resistance is reduced, and the arched steel sheet is not damaged due to friction.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
Fig. 2 is an enlarged view of a portion of fig. 1a in accordance with the present utility model.
In the figure: 1. the oil pumping rod comprises an oil pumping rod 2, an oil pumping rod coupling 3, an arched steel sheet 4, a sliding hole 5, a short shaft 6, a spring A7, a roller 8, a baffle 9, an arched elastic sheet 10, a fixed hoop 11, a bolt 12, a sliding groove 13, a sliding block 14, a spring B15 and a connecting block.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a sucker rod centralizer, including fixed hoop 10, sucker rod 1 and sucker rod coupling 2, be connected through sucker rod coupling 2 between two sucker rods 1, fixed hoop 10 includes two, two fixed hoops 10 are fixed in two sucker rod 1 surfaces respectively through bolt 11, evenly be fixed with six bow-shaped steel sheets 3 between two fixed hoops 10, slide hole 4 has been seted up at the middle part of bow-shaped steel sheet 3, and slide hole 4 inside activity run through has minor axis 5, the surface cover of minor axis 5 is equipped with spring A6, the front end of minor axis 5 is provided with gyro wheel 7.
When the centralizer is specifically used, when the sucker rod is lowered into a well, the roller 7 is contacted with the well wall instead of the arched steel sheet 3, friction is not generated between the arched steel sheet 3 and the well wall in the lower process, rolling friction is generated between the roller and the well wall, the friction force is relatively small, the lowering resistance is reduced, and the arched steel sheet 3 is not damaged due to friction.
In this embodiment, the rear end of the short shaft 5 is fixed with a baffle 8 that is greater than the aperture of the sliding hole 4, one side of the baffle 8 away from the short shaft 5 is fixed with an arcuate shrapnel 9, and both ends of the arcuate shrapnel 9 are all in sliding connection with the surface of the sucker rod coupling 2, the surface of the sucker rod coupling 2 is provided with sliding grooves 12, six sliding grooves 12 are provided in total, six sliding grooves 12 are uniformly distributed on the periphery of the sucker rod coupling 2, two sliding blocks 13 are arranged in the sliding grooves 12 in a sliding manner, the tops of the two sliding blocks 13 are respectively fixed with both ends of the arcuate shrapnel 9, one side of the sliding block 13 is fixed with a spring B14, one end of the spring B14 away from the sliding block 13 is fixed with a connecting block 15, and the connecting block 15 is fixed on the surface of the sucker rod coupling 2.
When the oil pumping rod 1 is used, if the deviation of the oil pumping rod 1 is large, the centralizer is propped against the well wall along with the inclination of the oil pumping rod 1, when the arched steel sheet 3 is stressed, the short shaft 5 slides in the sliding hole 4, the spring A6 contracts to offset part of the stress, meanwhile, the arched elastic sheet 9 is extruded when the short shaft 5 moves towards the inner side of the arched steel sheet 3, the two sliding blocks 13 are pushed to move back when being deformed, the two springs B14 are extruded, and the pressure born by part of the arched steel sheet 3 is consumed again, so that the centralizing structure formed by the arched steel sheet 3 and the fixed hoop 10 cannot generate large displacement, and further the scheme is more favorable for fully protecting the oil pumping rod.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a sucker rod centralizer, includes fixed hoop (10), sucker rod (1) and sucker rod coupling (2), its characterized in that: the fixing hoop (10) comprises two fixing hoops (10), six arc-shaped steel sheets (3) are uniformly fixed between the fixing hoops (10), sliding holes (4) are formed in the middle of each arc-shaped steel sheet (3), short shafts (5) are movably penetrated through the sliding holes (4), springs A (6) are sleeved on the surfaces of the short shafts (5), rollers (7) are arranged at the front ends of the short shafts (5), baffle plates (8) with the aperture larger than that of each sliding hole (4) are fixed at the rear ends of the short shafts (5), arc-shaped elastic sheets (9) are fixed on one sides, far away from the short shafts (5), of the baffle plates (8), and the two ends of each arc-shaped elastic sheet (9) are in sliding connection with the surfaces of the sucker rod coupling (2).
2. A sucker rod centraliser according to claim 1, wherein: the two fixing hoops (10) are respectively fixed on the surfaces of the two sucker rods (1) through bolts (11).
3. A sucker rod centraliser according to claim 1, wherein: the surface of sucker rod coupling (2) has seted up spout (12), the inside slip of spout (12) is provided with two sliders (13) to the top of two sliders (13) is fixed with the both ends of bow-shaped shell fragment (9) respectively.
4. A sucker rod centraliser according to claim 3, wherein: six sliding grooves (12) are formed in total, and the six sliding grooves (12) are uniformly distributed on the periphery of the sucker rod coupling (2).
5. A sucker rod centraliser according to claim 3, wherein: one side of the sliding block (13) is fixed with a spring B (14), one end of the spring B (14) away from the sliding block (13) is fixed with a connecting block (15), and the connecting block (15) is fixed on the surface of the sucker rod coupling (2).
6. A sucker rod centraliser according to claim 1, wherein: the two sucker rods (1) are connected through a sucker rod coupling (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323160151.7U CN221373488U (en) | 2023-11-23 | 2023-11-23 | Sucker rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323160151.7U CN221373488U (en) | 2023-11-23 | 2023-11-23 | Sucker rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221373488U true CN221373488U (en) | 2024-07-19 |
Family
ID=91874725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323160151.7U Active CN221373488U (en) | 2023-11-23 | 2023-11-23 | Sucker rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221373488U (en) |
-
2023
- 2023-11-23 CN CN202323160151.7U patent/CN221373488U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |