CN2066072U - Anti-trip unit for oil beam - Google Patents
Anti-trip unit for oil beam Download PDFInfo
- Publication number
- CN2066072U CN2066072U CN 90210856 CN90210856U CN2066072U CN 2066072 U CN2066072 U CN 2066072U CN 90210856 CN90210856 CN 90210856 CN 90210856 U CN90210856 U CN 90210856U CN 2066072 U CN2066072 U CN 2066072U
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- CN
- China
- Prior art keywords
- axle sleeve
- axle
- key
- bearing
- oil
- 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.)
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Abstract
The utility model mainly relates to a flexible shaft connecting piece of a ground driving single-screw oil extracting pump, which can effectively prevent the phenomenon that the flexible shaft screw trips in the process of oil extraction. The utility model is characterized in that a spring 5 and a key 6 are arranged in a keyway of a mandrel 1. A single surface keyway matched with the key 6 is arranged on the inner surface of an axle sleeve 7, and an oil seal 2 and a bearing 3 are arranged between the mandrel 1 and a hollow filament head 4. One end of the axle sleeve 7 is connected with a joint 8, and the other end of the axle sleeve 7 is connected with the hollow filament head 4.
Description
The utility model belongs to the petroleum industry oil recovery and uses equipment, relates generally to the flexible axle connector in the ground driving single-screw oil production pump.
At present, ground driving single-screw oil production pump both domestic and external does not have trip-proof device between flexible axle (with the beam hanger that is threaded) when work; And reach about 1000 meters during the work of flexible axle, under the driving moment effect, can produce elasticity of torsion distortion.When unexpected power failure, when shutting down, driving moment disappears, and elasticity of torsion distortion also will recover rapidly, therefore, usually occurs causing the screw thread dropout that flexible axle is disconnected because of the reverse turn of flexible axle, causes major accidents such as oil extraction pump can't be worked, oil well stopping production.As resuming production again, need operations such as oil extraction pump taking-up, well-flushing, following pumps, not only waste of manpower influences oil production rate, and wastes financial resources and the time.
The purpose of this utility model provides a kind of anti-tripping device of beam hanger that occurs threading off because of the flexible axle reverse turn, reduces the unnecessary loss that causes therefrom.
The utility model is to load onto spring and key in the keyway of axle, has the single face keyway that matches with key on the inner surface of axle sleeve, between axle and the air silk head oil sealing and bearing is arranged, and an end of axle sleeve links to each other with joint, and the other end is connected with the air silk head.
Oil sealing of the present utility model can be rectangle, O shape, trapezoidal or other shape; Bearing can adopt thrust ball bearing or sliding bearing; Can adopt between axle sleeve and joint and the air silk head to be threaded, perhaps with wherein any is made of one.
The utility model has solved the flexible axle connecting thread dropout problem that occurs because of the flexible axle counter-rotating in the oil recovery process, and the accident that can prevent effectively takes place, and can reduce the stopping production that causes owing to dropout and the loss in the process of resuming production.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the anti-tripping device structural representation of beam hanger, also is its most preferred embodiment.
Fig. 2 is anti-tripping device of beam hanger and flexible axle connection diagram.
In Fig. 1, spring 5 and key 6 are contained in the groove of axle 1, and when axle sleeve 7 clockwise rotated, under the spring force effect of spring 5, key 6 entered in the single face keyway of axle sleeve 7, thereby can drive axle 1 rotation by key 6 when axle sleeve 7 rotates.When axle sleeve 7 rotated counterclockwise, key 6 was pushed in the groove of axle 1 by the negative camber of axle sleeve 7, thereby formed that axle sleeve 7 rotates and axle 1 is not changeed, thereby the generation of screw thread dropout phenomenon can prevent that flexible axle from rotating counterclockwise the time.Bearing 3 and oil sealing 2 are arranged between axle 1 and the air silk head 4, bearing 3 is to be the axial force that the reduces flexible axle resistance to its rotation, can adopt thrust ball bearing or sliding bearing, oil sealing 2 can prevent effectively that mud or other foreign material from entering in the bearing, adopts between air silk head 4 and axle sleeve 7 and axle sleeve 7 and the joint 8 to be threaded.
In Fig. 2, the 9th, beam hanger box cupling, the 10th, the anti-tripping device of beam hanger, the 11st, beam hanger.
The utility model is through a large amount of experiment confirms, and it has played anti-tripping preferably effect in the single screw rod oil extraction pump system of surface driving.
Claims (4)
1, the anti-tripping device of a kind of beam hanger, comprise axle 1, air silk head 4, axle sleeve 7 and joint 8, it is characterized in that: spring 5 and key 6 are arranged in the keyway of axle 1, the single face keyway that cooperates with key 6 is arranged on the inner surface of axle sleeve 7, oil sealing 2 and bearing 3 are arranged between axle 1 and the air silk head 4, axle sleeve 7 one ends link to each other with joint 8, and the other end and air silk head 4 link together.
2, the anti-tripping device of beam hanger according to claim 1 is characterized in that: oil sealing 2 is rectangle, O shape, trapezoidal or other shape.
3, the anti-tripping device of beam hanger according to claim 2 is characterized in that: bearing 3 is thrust ball bearing or sliding bearing.
4, the anti-tripping device of beam hanger according to claim 1 is characterized in that: be with being threaded between axle sleeve 7 and joint 8 or the air silk head 4, or with wherein any is made of one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210856 CN2066072U (en) | 1990-04-12 | 1990-04-12 | Anti-trip unit for oil beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90210856 CN2066072U (en) | 1990-04-12 | 1990-04-12 | Anti-trip unit for oil beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2066072U true CN2066072U (en) | 1990-11-21 |
Family
ID=4890717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90210856 Withdrawn CN2066072U (en) | 1990-04-12 | 1990-04-12 | Anti-trip unit for oil beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2066072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065305A (en) * | 2020-11-12 | 2020-12-11 | 东营同博石油电子仪器有限公司 | Oil pipe dropout prevention means is used in oil field exploitation |
-
1990
- 1990-04-12 CN CN 90210856 patent/CN2066072U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112065305A (en) * | 2020-11-12 | 2020-12-11 | 东营同博石油电子仪器有限公司 | Oil pipe dropout prevention means is used in oil field exploitation |
| CN112065305B (en) * | 2020-11-12 | 2021-02-02 | 中国石油化工股份有限公司 | Oil pipe dropout prevention means is used in oil field exploitation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |