CN209724257U - Eccentric abrasion prevention righting weighted lever - Google Patents
Eccentric abrasion prevention righting weighted lever Download PDFInfo
- Publication number
- CN209724257U CN209724257U CN201920551900.3U CN201920551900U CN209724257U CN 209724257 U CN209724257 U CN 209724257U CN 201920551900 U CN201920551900 U CN 201920551900U CN 209724257 U CN209724257 U CN 209724257U
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- China
- Prior art keywords
- rod
- righting
- weighted lever
- formula centralizer
- abrasion prevention
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Abstract
The utility model discloses a kind of eccentric abrasion prevention righting weighted levers, with the body of rod, the both ends of the body of rod have head, interval is machined with cylinder shape groove on the body of rod, thermosetting formula centralizer is molded in cylinder shape groove, offer 4 straight trough oil flow channels uniformly at intervals on the excircle of the thermosetting formula centralizer, the quantity that thermosetting formula centralizer on the body of rod is arranged in is 2-5, distance close to thermosetting formula centralizer to the body of rod both ends head end face of body of rod both ends head is 600-800mm, the material of the thermosetting formula centralizer is preferably nylon66 fiber or reinforced PA66.The body of rod can be effectively prevented in use and directly generate friction with tube inner wall for the utility model.
Description
Technical field
The utility model relates to a kind of oilfield exploitation weighted levers, concretely relate to a kind of eccentric abrasion prevention righting exacerbation
Bar.
Background technique
When using the oil pumping of large-diameter extraction oil pump or heavy crude producing, oil pump plunger piston will be drawn in down stroke by resistance
Buckling occurs for the lower part for playing rod string, so that sucker rod is born additional bending stress, causes the early fracture of sucker rod.For
Prevent rod sag, weighted lever generally be widely used in the lower part of rod string, for increase rod string weight and
Stability.
With the continuous propulsion of oil field development, well deliverability is gradually deteriorated, and deep pumping and poly- drive of ternary become raising oil
The important means of well recovery.The depth of sucker rod generation eccentric wear is generally within the sucker rod load point of neutralization hereinafter, production process
In be stretched, compress two kinds of active forces and influence, be easy to happen bending, with tube inner wall friction, weighted lever is typically mounted at this
Position, eccentric wear is also than more serious.
Utility model content
It can be effectively prevented the technical problem to be solved by the present invention is to provide one kind and directly rub with tube inner wall generation
It wipes, to reach the eccentric abrasion prevention righting weighted lever that itself will not wear and tube inner wall will not be damaged by abrasion.
In order to solve the above technical problems, the eccentric abrasion prevention righting weighted lever of the utility model, has the body of rod, the both ends of the body of rod have
There is head, interval is machined with cylinder shape groove on the body of rod, and thermosetting formula centralizer is molded in cylinder shape groove.
As the improvement of the utility model, 4 are offered uniformly at intervals on the excircle of the thermosetting formula centralizer directly
Slot oil flow channel.
The quantity that thermosetting formula centralizer on the body of rod is arranged in as a further improvement of the utility model, is 2-5
It is a.
As the further improvement of the utility model, the thermosetting formula centralizer close to body of rod both ends head is to the body of rod
The distance of both ends head end face is 600-800mm.
The material of the thermosetting formula centralizer is preferably nylon66 fiber or reinforced PA66.
The advantageous effects of the utility model are: interval is machined with cylinder shape groove on the body of rod, in cylinder
It is molded with thermosetting formula centralizer in connected in star, can prevent weighted lever from directly generating friction with tube inner wall, to reach itself
It will not wear and tube inner wall will not be damaged because of abrasion；It is offered uniformly at intervals on the excircle of the thermosetting formula centralizer
4 straight trough oil flow channels, it is ensured that crude oil swimmingly flows through centralizer；The quantity of centralizer is preferably 2-5, close to two
The distance of side pole head is 600-800mm, can play better righting effect.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing.
Fig. 1 is the schematic view of the front view of the utility model eccentric abrasion prevention righting weighted lever.
Fig. 2 is the Fig. 1 eliminated after a thermosetting formula centralizer on the body of rod.
Fig. 3 is the sectional view of the line A-A along Fig. 1.
Specific embodiment
Referring to figures 1-3, the eccentric abrasion prevention righting weighted lever of the utility model, has the body of rod 1, and the both ends of the body of rod have bar
First 2, interval is machined with cylinder shape groove 3 on the body of rod 1, and thermosetting formula centralizer 4 is molded in cylinder shape groove.In
4 straight trough oil flow channels 5 are offered uniformly at intervals on the excircle of the thermosetting formula centralizer 4.It is arranged on the body of rod hot
The quantity of stationary centralizer 4 is 2-5.Thermosetting formula centralizer 4 close to body of rod both ends head 2 arrives body of rod both ends head 2
The distance of end face is 600-800mm.The material of the thermosetting formula centralizer 4 is preferably nylon66 fiber or reinforced PA66.
Claims (5)
1. a kind of eccentric abrasion prevention righting weighted lever has the body of rod (1), the both ends of the body of rod have head (2), it is characterised in that: in institute
Interval is machined with cylinder shape groove (3) on the body of rod (1) stated, and thermosetting formula centralizer (4) is molded in cylinder shape groove.
2. eccentric abrasion prevention righting weighted lever described in accordance with the claim 1, it is characterised in that: in the thermosetting formula centralizer (4)
4 straight trough oil flow channels (5) are offered on excircle uniformly at intervals.
3. eccentric abrasion prevention righting weighted lever according to claim 1 or 2, it is characterised in that: setting thermosetting on the body of rod
The quantity of formula centralizer (4) is 2-5.
4. eccentric abrasion prevention righting weighted lever according to claim 1 or 2, it is characterised in that: close to body of rod both ends head
(2) distance of thermosetting formula centralizer (4) to body of rod both ends head (2) end face is 600-800mm.
5. eccentric abrasion prevention righting weighted lever according to claim 1 or 2, it is characterised in that: the thermosetting formula centralizer (4)
Material is nylon66 fiber or reinforced PA66.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920551900.3U CN209724257U (en) | 2019-04-23 | 2019-04-23 | Eccentric abrasion prevention righting weighted lever |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920551900.3U CN209724257U (en) | 2019-04-23 | 2019-04-23 | Eccentric abrasion prevention righting weighted lever |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209724257U true CN209724257U (en) | 2019-12-03 |
Family
ID=68672958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920551900.3U Active CN209724257U (en) | 2019-04-23 | 2019-04-23 | Eccentric abrasion prevention righting weighted lever |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209724257U (en) |
-
2019
- 2019-04-23 CN CN201920551900.3U patent/CN209724257U/en active Active
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