CN203334975U - Sucker rod centering device - Google Patents
Sucker rod centering device Download PDFInfo
- Publication number
- CN203334975U CN203334975U CN2013202125712U CN201320212571U CN203334975U CN 203334975 U CN203334975 U CN 203334975U CN 2013202125712 U CN2013202125712 U CN 2013202125712U CN 201320212571 U CN201320212571 U CN 201320212571U CN 203334975 U CN203334975 U CN 203334975U
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- CN
- China
- Prior art keywords
- centering device
- sucker rod
- pumping rod
- centering
- rod centering
- 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 sucker rod centering device which comprises a body, wherein the body is provided with a centering body, and one end of the body is connected with a coupling. One end of the body is connected with internal threads of the coupling through external threads, and the other end of the body is provided with internal threads. The body is a step shaft and comprises steps arranged at the two ends and a diameter arranged between the steps, and the diameter is provided with the centering body. The centering body is arranged on the diameter in a sleeved mode. The centering body and the diameter are of an integrated structure. Gaps are formed between the centering body and the steps at the two ends. The centering body is provided with a groove. The groove is of a straight strip shape or a spiral shape. The centering body is made of nylon materials or carbon fiber materials. According to the sucker rod centering device, the centering body makes contact with a tubing wall, a sucker rod or a sucker rod coupling is prevented from being in direct contact with the tubing wall to produce eccentric wear, and the sucker rod centering device has the advantages of being high in strength, reasonable in structure and long in service life of the sucker rod.
Description
Technical field
The utility model relates to field of petroleum exploitation, is specifically related to a kind of oil pumping rod centering device.
Background technology
In the onshore oil field recovery process, be substantially all that the bar oil production equipment is arranged.For straight well and inclined shaft, R a T all can come in contact in motion process, produces wearing and tearing, particularly deep-well and inclined shaft, and sucker rod easily produces crooked in oil pipe.Conventional rod collar can not guarantee the contact of sucker rod discord tubing wall, causes between oil pipe and sucker rod and can produce eccentric wear, and the long-time wearing and tearing in this part are easily worn out, cause sucker rod to be rubbed.Thereby increased the polished rod consumption, increased inspection pump number of times, reduced produce oil efficiency.
The utility model content
Provide hereinafter about brief overview of the present utility model, in order to the basic comprehension about some aspect of the present utility model is provided.Should be appreciated that this general introduction is not about exhaustive general introduction of the present utility model.It is not that intention is determined key of the present utility model or pith, neither be intended to limit scope of the present utility model.Its purpose is only that the form of simplifying provides some concept, usings this as the preorder in greater detail of discussing after a while.
In order to solve the problem of prior art, the utility model provides a kind of intensity high, rational in infrastructure, the oil pumping rod centering device of sucker rod long service life
To achieve these goals, the technical scheme that the utility model is taked is:
A kind of oil pumping rod centering device, comprise body, and an end of described body arranges internal thread, the other end arranges external screw thread, and the middle part of described body is set with centralizer body.
Compared with prior art, the beneficial effects of the utility model are:
Centralizer body of the present utility model contacts with tubing wall, avoids sucker rod or rod collar directly to contact with tubing wall eccentric wear occurs, and has intensity high, rational in infrastructure, makes the advantage of sucker rod long service life.
The accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the oil pumping rod centering device that Fig. 1 provides for the utility model embodiment.
Reference numeral:
The 1-box cupling; The 2-centralizer body; The 3-body, the middle part of 31-Step Shaft.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.The element of describing in an accompanying drawing of the present utility model or a kind of embodiment and feature can combine with element and feature shown in one or more other accompanying drawing or embodiment.It should be noted that for purposes of clarity, omitted, expression and description known to persons of ordinary skill in the art parts and processing irrelevant with the utility model in accompanying drawing and explanation.Embodiment based in the utility model, those of ordinary skills are not paying under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Referring to Fig. 1, a kind of oil pumping rod centering device, comprise body 3, and body 3 one ends arrange internal thread, the other end arranges external screw thread, and the middle part of body 3 is set with centralizer body 2.
The utility model is convenient to be installed, and time and labour saving, and it is high to have intensity is rational in infrastructure, makes the advantage of sucker rod long service life.
The present embodiment is on the basis of above-described embodiment, and for convenience of connecting, the external screw thread place is bolted with box cupling 1.
Further, internal and external screw thread coaxially arranges, and described internal thread place is for connecting with pumping rod.
Box cupling of the present utility model is that two ends are through holes of internal thread, when connecting with sucker rod, directly sucker rod is connected with the internal thread at the upper and lower two ends of centralizer respectively with the external screw thread at upper and lower two ends.The convenient installation.
The present embodiment is on the basis of above-described embodiment, and body 3 is a Step Shaft, and the diameter at described Step Shaft middle part is less than the diameter at two ends.The design and installation of body is convenient, is convenient to connect.
The middle part 31 of centralizer body 2 sheathed Step Shafts of the present utility model.Conveniently take off replacing, rotatable, even wearing; Or centralizer body 2 is connected as a single entity by casting with the middle part 31 of Step Shaft, centralizer body also can cast in the middle part of body, with body, becomes as a whole.
The present embodiment, on the basis of above-described embodiment, is equipped with gap between the step at centralizer body 2 and described Step Shaft two ends.Can also on centralizer body 2, be provided with groove, groove is along the length direction setting of body 3.Groove is preferably vertical bar shape or helical form.
The utility model centralizer body leaves certain distance apart from the two ends step, guarantees that liquid stream has enough large area of passage in the centralizer body end; Be processed with vertical bar shape or spiral groove on centralizer body, with the existing scraping function of the centralizer body of channel form, can guarantee that again liquid stream passes through from groove.
The present embodiment is on the basis of above-described embodiment, and centralizer body 2 is nylon material centralizer body or carbon fibre material centralizer body.The centralizer body of being made by high abrasion resisting material contacts with tubing wall, avoids sucker rod or rod collar directly to contact with tubing wall eccentric wear occurs, and has advantages of anti-eccentric wear.
Characteristics of the present utility model are: two ends are internal thread, and convenient the installation, save time, and saves box cupling; Centralizer body can freely be extracted also and can cast on body; Certain distance is left at centralizer body and step place, two ends, has guaranteed that area of passage is enough large; Centralizer body is processed with groove, and existing scraping function has and can make liquid stream pass through.
In the utility model the various embodiments described above, the sequence number of embodiment only is convenient to describe, and does not represent the quality of embodiment.Description to each embodiment all emphasizes particularly on different fields, and there is no the part described in detail in certain embodiment, can be referring to the associated description of other embodiment.
In the embodiment such as apparatus and method of the present utility model, obviously, each parts or each step reconfigure after can decomposing, combine and/or decomposing.These decomposition and/or reconfigure and should be considered as equivalents of the present utility model.Simultaneously, in the above in the description to the utility model specific embodiment, the feature of describing and/or illustrating for a kind of embodiment can be used in same or similar mode in one or more other embodiment, combined with the feature in other embodiment, or substitute the feature in other embodiment.
Should emphasize, term " comprises/comprises " existence that refers to feature, key element, step or assembly when this paper is used, but does not get rid of the existence of one or more further feature, key element, step or assembly or add.
Finally it should be noted that: described the utility model and advantage thereof in detail although above, be to be understood that in the situation that do not exceed the spirit and scope of the present utility model that limited by appended claim and can carry out various changes, alternative and conversion.And scope of the present utility model is not limited only to the specific embodiment of the described process of manual, equipment, means, method and step.The one of ordinary skilled in the art will readily appreciate that from disclosure of the present utility model, according to the utility model, can use and carries out with the essentially identical function of corresponding embodiment described herein or obtain process, equipment, means, method or step result essentially identical with it, that existing and will be developed future.Therefore, appended claim is intended to comprise such process, equipment, means, method or step in their scope.
Claims (8)
1. an oil pumping rod centering device, is characterized in that, comprises body, and an end of described body arranges internal thread, the other end arranges external screw thread, and the middle part of described body is set with centralizer body; Described body is a Step Shaft, and the diameter at described Step Shaft middle part is less than the diameter at two ends; Be equipped with gap between the step at described centralizer body and described Step Shaft two ends.
2. oil pumping rod centering device according to claim 1, is characterized in that, described external screw thread place is bolted with box cupling.
3. oil pumping rod centering device according to claim 1, is characterized in that, described internal and external screw thread coaxially arranges, and described internal thread place is for connecting with pumping rod.
4. according to the described oil pumping rod centering device of claim 1-3 any one, it is characterized in that, described centralizer body is set in the middle part of described Step Shaft.
5. according to the described oil pumping rod centering device of claim 1-3 any one, it is characterized in that, the middle part of described centralizer body and described Step Shaft is connected as a single entity by casting.
6. according to the described oil pumping rod centering device of claim 1-3 any one, it is characterized in that, described centralizer body is provided with groove, and described groove is along the length direction setting of described body.
7. oil pumping rod centering device according to claim 6, is characterized in that, described groove is vertical bar shape or helical form.
8. according to the described oil pumping rod centering device of claim 1-3 any one, it is characterized in that, described centralizer body is nylon material centralizer body or carbon fibre material centralizer body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202125712U CN203334975U (en) | 2013-04-24 | 2013-04-24 | Sucker rod centering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202125712U CN203334975U (en) | 2013-04-24 | 2013-04-24 | Sucker rod centering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203334975U true CN203334975U (en) | 2013-12-11 |
Family
ID=49703653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202125712U Expired - Lifetime CN203334975U (en) | 2013-04-24 | 2013-04-24 | Sucker rod centering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203334975U (en) |
-
2013
- 2013-04-24 CN CN2013202125712U patent/CN203334975U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Auto-changing oblique contact type sucker rod centering guide Effective date of registration: 20190809 Granted publication date: 20131211 Pledgee: Xi'an innovation financing Company limited by guarantee Pledgor: SHAANXI DINGHE YUANRUI ENVIRONMENTAL ENGINEERING CO.,LTD. Registration number: Y2019990000050 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CX01 | Expiry of patent term |