CN2720089Y - Rotary hoop-jointing centering guide for screw pump - Google Patents
Rotary hoop-jointing centering guide for screw pump Download PDFInfo
- Publication number
- CN2720089Y CN2720089Y CN 200420063330 CN200420063330U CN2720089Y CN 2720089 Y CN2720089 Y CN 2720089Y CN 200420063330 CN200420063330 CN 200420063330 CN 200420063330 U CN200420063330 U CN 200420063330U CN 2720089 Y CN2720089 Y CN 2720089Y
- Authority
- CN
- China
- Prior art keywords
- centralizer
- centering guide
- metallic framework
- jointing
- screw pump
- 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 - Fee Related
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Abstract
The utility model belongs to the technical field of the mechanical oil production process in the oil development, in particular to a rotary hoop-jointing centering guide device for the screw pump well. The purpose of the device is that the centering guide is fixed on the position of the sucker rod hoop-jointing, and the abrasion of the hoop-jointing and the inner wall of the pipe column are avoided. The utility model mainly comprises a centering guide centering body 1, a centering guide metal framework 2, a centering guide soft metal rope clamping ring 3, a metal baffle ring 4, etc. The utility model is mainly used for the oil field screw pump well, and the device has the advantages that the centering guide main body can be freely rotated, the device relieves the abrasion of the centering guide and the useful life of the centering guide is prolonged, etc.
Description
Technical field: the utility model belongs to mechanical oil production technology technical field in the oil development, belongs to the rotary coupling centralizer device of screw bolt well especially.
Background technology: existing centralizer of screw pump has two kinds.The one, car coat type, its shortcoming is to go here and there easily to move on roofbolt, sets upright at box cupling, easily causes box cupling and tubing string inner wall abrasion.The 2nd, mandrel formula centralizer, its shortcoming is to have increased field erected workload, cost increases.
Summary of the invention: the purpose of this utility model is that development a kind ofly can be fixed on centralizer the rod collar position, and avoids the rotary coupling centralizer of screw pump of box cupling and tubing string inner wall abrasion again.
The utility model mainly is made up of centralizer centralizer body, centralizer metallic framework, centralizer soft metal rope strengthening ring, metal baffle ring etc.
Wherein centralizer centralizer body and centralizer metallic framework and metal baffle ring, molten in advance moulding together forms the centralizer main body.In order to make centralizer centralizer body and centralizer metallic framework bonding firmly, the position of the three rib of corresponding centralizer centralizer body has respectively processed two circular holes on the locking metallic framework, and the nylon after molten the moulding is filled circular hole.Metal baffle ring and centralizer metallic framework are combined closely by inserting mode, and be fixing by the molten back of moulding.Centralizer soft metal rope strengthening ring is installed into the space of centralizer metallic framework and the formation of metal baffle ring.
Compared with the prior art the utility model has following advantage:
1, centralizer is fixed on the rod collar position, avoids box cupling and tubing string inner wall abrasion;
2, realized that giving of sucker rod and box cupling is tight, prevented the dropout of sucker rod and box cupling;
3, the centralizer main body can rotate freely, and can alleviate centralizer wearing and tearing, prolongs centralizer application life.
Description of drawings: Fig. 1 is a structure diagram of the present utility model;
Fig. 2 is a cross-sectional view of the present utility model;
Fig. 3 is an application connection layout of the present utility model.
The specific embodiment: the utility model mainly is made up of centralizer centralizer body 1, centralizer metallic framework 2, centralizer soft metal rope strengthening ring 3, metal baffle ring 4 etc.
Wherein centralizer centralizer body 1 and centralizer metallic framework 2 and metal baffle ring 4, molten in advance moulding together forms the centralizer main body.In order to make centralizer centralizer body 1 and centralizer metallic framework 2 bonding firm, the position of the three rib of corresponding centralizer centralizer body 1 has respectively processed two circular holes on the locking metallic framework 2, and the nylon after molten the moulding is filled circular hole.Metal baffle ring 4 and centralizer metallic framework 2 are combined closely by inserting mode, and be fixing by the molten back of moulding.Centralizer soft metal rope strengthening ring 3 is installed into the space of centralizer metallic framework 2 and 4 formation of metal baffle ring.
Centralizer metallic framework 2 and metal baffle ring 4 are molten in advance to be moulded in centralizer centralizer body 1, forms the centralizer main body.When sucker rod installs the utility model 6 additional, the end face of box cupling 7 contacts with retaining ring 3 lower surfaces, centralizer soft metal and tightens, the trivial tight end face of the lock of sucker rod contacts and tightens with retaining ring 3 upper surfaces, centralizer soft metal, has formed the integral body that is connected of box cupling 7, centralizer soft metal retaining ring 3 and a rod connector like this.Centralizer soft metal retaining ring 3 in the integral body can freely be rotated at the space plane of centralizer metallic framework 2 and 4 formation of metal baffle ring, because retaining ring 3 tops, centralizer soft metal have centralizer metallic framework 2 spacing, metal baffle ring spacing 4 is arranged at the bottom, therefore guarantee that the centralizer main body is fixed on rod collar 7 positions all the time, and can freely rotate on the plane.
During on-the-spot the use, the utility model uses 6 on screw bolt well.When under the screw bolt well operation during roofbolt, general rod connector 5 pin threads up, box cupling 7 is installed from top to bottom, therefore earlier there is one of centralizer metallic framework 2 to be installed in the rod connector centralizer, joint pretension face is contacted with centralizer soft metal retaining ring 3, then box cupling 7 is penetrated on the centralizer inside and detain, box cupling 7, centralizer soft metal retaining ring 3 and rod connector 5 are tightened.Centralizer after the installation should be able to be spacing in box cupling 7 positions, and can freely rotate.
Claims (1)
1, the rotary coupling centralizer of screw pump is characterized in that: it mainly is made up of centralizer centralizer body (1), centralizer metallic framework (2), centralizer soft metal rope strengthening ring (3), metal baffle ring (4) etc.;
Wherein centralizer centralizer body (1) and centralizer metallic framework (2) and metal baffle ring (4), molten in advance moulding together, form the centralizer main body, the position that locking metallic framework (2) is gone up the three rib of corresponding centralizer centralizer body (1) has respectively processed two circular holes, nylon after molten the moulding is filled circular hole, metal baffle ring (4) is combined closely by inserting mode with centralizer metallic framework (2), fixing by the molten back of moulding, centralizer soft metal rope strengthening ring (3) is installed into the space of centralizer metallic framework (2) and metal baffle ring (4) formation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063330 CN2720089Y (en) | 2004-08-25 | 2004-08-25 | Rotary hoop-jointing centering guide for screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420063330 CN2720089Y (en) | 2004-08-25 | 2004-08-25 | Rotary hoop-jointing centering guide for screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720089Y true CN2720089Y (en) | 2005-08-24 |
Family
ID=35009050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420063330 Expired - Fee Related CN2720089Y (en) | 2004-08-25 | 2004-08-25 | Rotary hoop-jointing centering guide for screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720089Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168533A (en) * | 2011-03-16 | 2011-08-31 | 中煤科工集团西安研究院 | Central support for inserting geological drilling casing |
-
2004
- 2004-08-25 CN CN 200420063330 patent/CN2720089Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102168533A (en) * | 2011-03-16 | 2011-08-31 | 中煤科工集团西安研究院 | Central support for inserting geological drilling casing |
| CN102168533B (en) * | 2011-03-16 | 2013-06-05 | 中煤科工集团西安研究院 | Central support for inserting geological drilling casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050824 |