CN212837631U - Active reversing anti-eccentric wear sucker rod centralizer - Google Patents
Active reversing anti-eccentric wear sucker rod centralizer Download PDFInfo
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- CN212837631U CN212837631U CN202021312691.6U CN202021312691U CN212837631U CN 212837631 U CN212837631 U CN 212837631U CN 202021312691 U CN202021312691 U CN 202021312691U CN 212837631 U CN212837631 U CN 212837631U
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- sucker rod
- central shaft
- oil
- righting
- guide nail
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Abstract
The utility model provides an active reversing anti-eccentric wear sucker rod centralizer, belonging to the technical field of oil exploitation and aiming at solving the problem that the sucker rod for an oil well plunger oil pump is easy to be damaged by friction with an oil pipe; comprises a coupling, a centralizing body, a guide nail and a central shaft; the coupling is fixedly arranged at the top of the central shaft; the centralizing body is sleeved in the middle of the central shaft, and the centralizing body is in clearance fit with the central shaft; the guide nail is fixedly arranged on the righting body, and one end of the guide nail penetrates through the righting body and extends into the righting body; the central shaft is provided with a track groove matched with the righting body; the utility model provides a design can right the sucker rod in oil pipe, prevents the wearing and tearing that sucker rod and oil pumping pipe produced, prolongs sucker rod and oil pipe's life.
Description
Technical Field
The utility model relates to an oil development technical field specifically is initiative switching-over eccentric wear prevention sucker rod centralizer.
Background
In the oil exploitation industry, the sucker rod for the oil well plunger oil pump needs to move up and down in an oil pipe, so that the problems of mutual friction and damage between the sucker rod and the oil pipe easily occur.
SUMMERY OF THE UTILITY MODEL
The technique that exists is not enough to the aforesaid, the utility model aims at providing an initiative switching-over anti eccentric wear sucker rod centralizer can right the sucker rod in oil pipe, prevents the wearing and tearing that sucker rod and oil pumping pipe produced, prolongs sucker rod and oil pipe's life.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the active reversing eccentric wear prevention sucker rod centralizer is characterized by comprising a coupling, a centralizer, a guide nail and a central shaft; the coupling is fixedly arranged at the top of the central shaft; the centralizing body is sleeved in the middle of the central shaft, and the centralizing body is in clearance fit with the central shaft; the guide nail is fixedly arranged on the righting body, and one end of the guide nail penetrates through the righting body and extends into the righting body; and the central shaft is provided with a track groove matched with the righting body.
Preferably, the track groove comprises groove bodies which are opposite up and down and are arranged in a staggered manner; the groove body is provided with a plurality of V-shaped grooves which are connected in parallel; the length direction of one of the groove sides of the V-shaped groove is the same as the direction of the central axis of the central shaft.
The beneficial effects of the utility model reside in that: the utility model provides a design can right the sucker rod in oil pipe, prevents the wearing and tearing that sucker rod and oil pumping pipe produced, prolongs sucker rod and oil pipe's life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of an active reversing eccentric wear prevention sucker rod centralizer provided by an embodiment of the present invention;
fig. 2 is a schematic structural view of a track groove of the active reversing eccentric wear prevention sucker rod centralizer provided by the embodiment of the present invention.
Description of reference numerals:
coupling 1, centralizer 2, guide pin 3, center pin 4.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "in", "up", "down", "horizontal", "inner", etc. indicate directions or positional relationships based on those shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, or an integral connection; may be a mechanical connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 2, the active reversing anti-eccentric sucker rod centralizer comprises a coupling 1, a centralizer 2, a guide nail 3 and a central shaft 4; the coupling 1 is fixedly arranged on the top of the central shaft 4; the centralizing body 2 is sleeved in the middle of the central shaft 4, and the centralizing body 2 is in clearance fit with the central shaft 4; the guide nail 3 is fixedly arranged on the righting body 2, and one end of the guide nail 3 penetrates through the righting body 2 and extends into the righting body 2; the central shaft 4 is provided with a track groove matched with the righting body 2.
Further, the track groove comprises groove bodies which are opposite up and down and are arranged in a staggered manner; the groove body is provided with a plurality of V-shaped grooves which are connected in parallel; the length direction of one of them groove limit in V type groove is the same with the direction of the axis of center pin 4, and this structural design can make guide pin 3 when the orbit inslot reciprocates, can switch its position in order in adjacent V type groove, prevents that guide pin 3 from moving in same V type inslot all the time, reduces the wearing and tearing to the V type groove single-point.
When the sucker rod centralizer is used, the coupling 1 is connected to a sucker rod, and the outer ring of the centralizing body 2 abuts against the inner side wall of an oil pumping pipe; when the oil pumping rod normally works, the coupling 1 and the central shaft 4 reciprocate up and down along with the oil pumping pipe, and the oil pumping rod is kept to move at the central axis position of the oil pumping pipe through the connection of the coupling 1 and the central shaft 4; the central shaft 4 moves upwards, the centralizing body 2 and the guide nail 3 are positioned at the bottom dead center of the track groove, when the central shaft moves downwards, the guide nail 3 relatively slides upwards along the track groove to the top dead center of the track groove, and the forced rotation reversing is realized along with the continuous downward movement of the sucker rod; the reversing is realized once every time the sucker rod goes up and down, and the situation that the sucker rod and an oil pipe are abraded due to the fact that one position of the track groove is repeatedly contacted and abraded seriously and further the moving direction of the sucker rod is deviated is prevented.
The utility model provides a design can right the sucker rod in oil pipe, prevents the wearing and tearing that sucker rod and oil pumping pipe produced, prolongs sucker rod and oil pipe's life.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (2)
1. The active reversing eccentric wear prevention sucker rod centralizer is characterized by comprising a coupling, a centralizer, a guide nail and a central shaft; the coupling is fixedly arranged at the top of the central shaft; the centralizing body is sleeved in the middle of the central shaft, and the centralizing body is in clearance fit with the central shaft; the guide nail is fixedly arranged on the righting body, and one end of the guide nail penetrates through the righting body and extends into the righting body; and the central shaft is provided with a track groove matched with the righting body.
2. The active reversing anti-eccentric sucker rod centralizer of claim 1, wherein the track grooves comprise groove bodies which are opposite up and down and are arranged in a staggered manner; the groove body is provided with a plurality of V-shaped grooves which are connected in parallel; the length direction of one of the groove sides of the V-shaped groove is the same as the direction of the central axis of the central shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021312691.6U CN212837631U (en) | 2020-07-07 | 2020-07-07 | Active reversing anti-eccentric wear sucker rod centralizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021312691.6U CN212837631U (en) | 2020-07-07 | 2020-07-07 | Active reversing anti-eccentric wear sucker rod centralizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212837631U true CN212837631U (en) | 2021-03-30 |
Family
ID=75181838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021312691.6U Active CN212837631U (en) | 2020-07-07 | 2020-07-07 | Active reversing anti-eccentric wear sucker rod centralizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212837631U (en) |
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2020
- 2020-07-07 CN CN202021312691.6U patent/CN212837631U/en active Active
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