CN204610279U - Metal stator screw pump stator assembling and positioning is swollen tire - Google Patents
Metal stator screw pump stator assembling and positioning is swollen tire Download PDFInfo
- Publication number
- CN204610279U CN204610279U CN201520309296.5U CN201520309296U CN204610279U CN 204610279 U CN204610279 U CN 204610279U CN 201520309296 U CN201520309296 U CN 201520309296U CN 204610279 U CN204610279 U CN 204610279U
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- stator
- metal stator
- positioning
- swollen tire
- metal
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Abstract
The utility model discloses the swollen tire of a kind of metal stator screw pump stator assembling and positioning, principle according to elastic expansion tire designs in conjunction with metal stator screw pump stator spiral cavity feature, it is characterized in that on the matrix of twin-screw rotor, be designed to 8 lobe elastic expansion tires, by travelling expansion core and fixing expansion core, the double helix outer surface of swollen tire is bulged, with two comprehensive close contacts of single-unit metal stator spiral surface of internal cavity, thus fix two single-unit metal stators, make two continuous dislocation-free of single-unit metal stator spiral inner chamber.Metal stator screw pump stator assembling and positioning is swollen, and mold has accurate positioning, and stator has assembled rear whole metal stator coaxality and straightness accuracy is all less than 0.04mm, the continuous dislocation-free of stator spiral inner chamber; Positioning process is simple, and easy to operate, positioning time is short, and up-to-standard rate is high; Low cost of manufacture, plastic-less deformation, the features such as long service life.
Description
Technical field
The utility model relates to the swollen tire of a kind of metal stator screw pump stator assembling and positioning, especially relates to the swollen tire of hot extracting thick oil metal stator screw pump stator assembling and positioning that a kind of oil field uses.
Background technique
The domestic metal stator screw pump developed mainly contains two kinds by stator classification at present: one is integrated type metal stator screw pump, and one is combined metal stator screw pump.
Integrated type metal stator screw pump is large due to mechanical processing difficulty, and process rear stator spiral inner cavity size error greatly, rough surface, can not meet design requirement, so far not yet in field use.
Combined metal stator screw pump is that bulk metal stator is divided into 4 joints at least, the single-unit stator of 16 joints at most, then machining is carried out to single-unit stator, reduce the mechanical processing difficulty of metal stator, the machining accuracy of single-unit metal stator is improved, meets design requirement, but, the combination of single-unit metal stator is assembled into a great problem, and integrating error cause greatly the metal stator up-to-standard rate after combination very low.
The metal stator of the metal stator screw pump of the domestic enterprise's development had adopts stator connecting sleeve to connect at present, stator location is inaccurate, technique is loaded down with trivial details, positioning time is long, efficiency is low, up-to-standard rate is low, and due to tubing size limited, manufacturing and designing of the outer garden size restrictions of stator connecting sleeve major diameter, huge discharge screw pump.Limit the using scope of screw pump.The stator of the metal stator screw pump of some enterprises development adopts the mode that lenticular surface of contact is located or locating stud is located, and because integrating error are large after stator assembling, whole metal stator dimensional accuracy is overproof, and up-to-standard rate is low.
The problems referred to above significantly limit using of metal stator screw pump and develop, and metal stator screw pump product forms scale so far not yet, can not meet the demand of oil field petroleum production especially thickened oil recovery.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of metal stator assembling and positioning instrument, solves the difficult problem that metal stator assembling and positioning is inaccurate.
The utility model solves the technological scheme that metal stator assembling and positioning is forbidden a difficult problem to be taked:
1. adopt the principle of elastic expansion tire, on the matrix of twin-screw rotor, be designed to 8 lobe elastic expansion tires, by travelling expansion core and fixing expansion core, the double helix outer surface of swollen tire is bulged, with two comprehensive close contacts of single-unit metal stator spiral surface of internal cavity, thus fix two single-unit metal stators, make two continuous dislocation-free of single-unit metal stator spiral inner chamber, reach assembling and positioning object accurately.
2. swollen tire material adopts 65Mn high-quality spring steel to manufacture, modified rear hardness 42HRC-46HRC, and make the good not easily plastic deformation of swollen tire elasticity, the life-span is long, durable in use.
3. swollen tire length is 2 times of metal stator helical pitch, reaches designing requirement after making two single-unit metal stator location.
Compared with existing metal stator screw pump stator assembling and positioning technology, the beneficial effects of the utility model are:
1. the swollen tire accurate positioning of metal stator screw pump stator assembling and positioning, stator has assembled rear whole metal stator coaxality and straightness accuracy is all less than 0.04mm, the continuous dislocation-free of stator spiral inner chamber.
2. the swollen tire positioning process of metal stator screw pump stator assembling and positioning is simple, and easy to operate, positioning time is short, and up-to-standard rate is high.
3. the swollen tire low cost of manufacture of metal stator screw pump stator assembling and positioning, plastic-less deformation, long service life.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated
Fig. 1 is the swollen tire schematic diagram of metal stator screw pump stator assembling and positioning.
Fig. 2 is metal stator screw pump stator assembling and positioning swollen tire embodiment schematic diagram.
In FIG, 1. swollen tire; 2. travelling expansion core; 3. fixing expansion core; 4. expansion core connecting rod; 5. swollen tire connecting tube; 6. swollen tire swing handle; 7. expansion core swing handle.
In fig. 2,1. swollen tire; 2. travelling expansion core; 3. fixing expansion core; 4. expansion core connecting rod; 5. swollen tire connecting tube; 6. swollen tire swing handle; 7. expansion core swing handle; 8. single-unit metal stator A; 9. two single-unit metal stator surface of contact (weld seam); 10. single-unit metal stator B.
Embodiment
The utility model is the research and development carried out for metal stator screw pump stator assembling and positioning problem, and the principle according to elastic expansion tire designs in conjunction with metal stator screw pump stator spiral cavity feature, and its concrete grammar is:
1. the swollen tire of metal stator screw pump stator assembling and positioning is on the matrix of twin-screw rotor, be designed to 8 lobe elastic expansion tires, by travelling expansion core and fixing expansion core, the double helix outer surface of swollen tire is bulged, with two comprehensive close contacts of single-unit metal stator spiral surface of internal cavity, thus fix two single-unit metal stators, make two continuous dislocation-free of single-unit metal stator spiral inner chamber.
2. swollen tire material adopts 65Mn high-quality spring steel to manufacture, modified rear hardness 42HRC-46HRC, makes the good not easily plastic deformation of swollen tire elasticity, and travelling expansion core, fixing expansion core and expansion core connecting rod adopt the manufacture of high-quality medium carbon alloy steel.
3. swollen tire length is 2 times of metal stator helical pitch, cavity gap 0.08mm in swollen tire original size and metal stator spiral.
Below in conjunction with accompanying drawing 2, embodiment is described in further detail the utility model:
First by through the single-unit metal stator A (8) of the same size that is up to the standards and single-unit metal stator B (10), be installed on respectively and be on two chucks of same axis, and single-unit metal stator A (8) is contacted end face with single-unit metal stator B (10) be close to, rotate single-unit metal stator A (8), with twin-screw core rod by single-unit metal stator A (8) and single-unit metal stator B (10) Primary Location, take out twin-screw core rod, bring into use the swollen tire of metal stator screw pump stator assembling and positioning, rotate expansion core swing handle (7), swollen tire (1) is made to be in original size, rotation forces is swollen tire swing handle (6), two single-unit metal stator surface of contact (weld seam) (9) places are delivered to along metal stator spiral inner chamber in swollen tire (1) center, rotate expansion core swing handle (7), by travelling expansion core (2) and fixing expansion core (3), swollen tire (1) is bulged, the spiral inner chamber swelling of swollen tire (1) helical outer surface and single-unit metal stator A (8) and single-unit metal stator B (10), single-unit metal stator A (8) and single-unit metal stator B (10) is located, rotating chuck makes single-unit metal stator A (8) and single-unit metal stator B (10) at the uniform velocity rotate, laser bonding is carried out to single-unit metal stator A (8) and single-unit metal stator B (10) surface of contact (9), postwelding rotates expansion core swing handle (7), swollen tire (1) is made to get back to original size, rotation forces is swollen tire swing handle (6), take out swollen tire (1), single-unit metal stator A (8) and single-unit metal stator B (10) has welded, repeat above-mentioned action and weld next root single-unit metal stator, until complete the welding of whole single-unit metal stator, whole metal stator screw pump stator combination assembly process completes.
Claims (2)
1. the swollen tire of metal stator screw pump stator assembling and positioning, comprise swollen tire, travelling expansion core, fixing expansion core, expansion core connecting rod, swollen tire connecting tube, swollen tire swing handle and expansion core swing handle seven part, it is characterized in that on the matrix of twin-screw rotor, be designed to 8 lobe elastic expansion tires, by travelling expansion core and fixing expansion core, the double helix outer surface of swollen tire is bulged, with two comprehensive close contacts of single-unit metal stator spiral surface of internal cavity, fix two single-unit metal stators.
2. the swollen tire of metal stator screw pump stator assembling and positioning according to claim 1, is characterized in that swollen tire length is 2 times of metal stator helical pitch, and in swollen tire original size and metal stator spiral, cavity gap is 0.08mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309296.5U CN204610279U (en) | 2015-05-13 | 2015-05-13 | Metal stator screw pump stator assembling and positioning is swollen tire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520309296.5U CN204610279U (en) | 2015-05-13 | 2015-05-13 | Metal stator screw pump stator assembling and positioning is swollen tire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610279U true CN204610279U (en) | 2015-09-02 |
Family
ID=53962848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520309296.5U Withdrawn - After Issue CN204610279U (en) | 2015-05-13 | 2015-05-13 | Metal stator screw pump stator assembling and positioning is swollen tire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204610279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271074A (en) * | 2015-05-13 | 2017-01-04 | 盐城世宏石油装备有限公司 | Metal stator screw pump stator assembling positioning expander tire |
-
2015
- 2015-05-13 CN CN201520309296.5U patent/CN204610279U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106271074A (en) * | 2015-05-13 | 2017-01-04 | 盐城世宏石油装备有限公司 | Metal stator screw pump stator assembling positioning expander tire |
| CN106271074B (en) * | 2015-05-13 | 2018-08-17 | 盐城世宏石油装备有限公司 | Metal stator screw pump stator assembles positioning expander tire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20180817 |