CN102062089A - Method for machining full metal screw pump stator - Google Patents
Method for machining full metal screw pump stator Download PDFInfo
- Publication number
- CN102062089A CN102062089A CN 201010604651 CN201010604651A CN102062089A CN 102062089 A CN102062089 A CN 102062089A CN 201010604651 CN201010604651 CN 201010604651 CN 201010604651 A CN201010604651 A CN 201010604651A CN 102062089 A CN102062089 A CN 102062089A
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- screw pump
- machining
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- bars
- pump stator
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to a method for machining a full metal screw pump stator. The machining method comprises the following steps of: radially cutting a metal bar for manufacturing a metal screw pump stator into two bars of which the cross sections are semi-circles by using a spark cutting method; machining groove-shaped lines for running the screw pump stator on the radial full-length cross sections of the two cut bars by using a milling method; oppositely buckling the two bars with the machined groove-shaped lines, and connecting the two bars together through a fixing pin; and penetrating the bars into a fixed outer cylinder to form a complete metal screw pump stator. The method only needs conventional machining equipment without special deep hole machining equipment and special machining machines, tools and cutters, thus the investment of the machining equipment and the machining difficulty are greatly reduced, and the machining precision is improved; and the method provided by the invention is an economical and effective machining method.
Description
Technical field
The present invention relates to a kind of processing method of full-metallic screw pump stator.
Background technique
Use the extraction equipment of screw pump as thermal recovery oil well viscous crude, in recent years so that its earth construction is simple, easy for installation, floor space is few, the high application that obtains wide model of pump efficiency, but what screw pump stator adopted is rubber material, in thick oil thermal extraction, use the restriction that is subjected to temperature, very easily aging, have a strong impact on applying of screw pump.Adopt the full-metallic screw pump can solve the restriction of temperature to screw pump, but the length of full-metallic screw pump is generally all more than 6 meters, the processing of the endoporus of its strength member stator is difficulty very.At this problem, the present invention proposes a kind of processing method of full-metallic screw pump stator.
Summary of the invention
Content of the present invention is a kind of processing method simply and easily that proposes at the metal screw pump stator processing difficulties.
The present invention solves the processing method that its technical problem adopts: the metal bar material that radially will make metal screw pump stator is with the method for the electrical spark cutting bar that to cut into two cross sections be semicircle, radially process the groove molded lines of screw pump rotor operation on the total length cross section with the method for Milling Process at two bars cutting open, two bars that will process the groove molded lines then are to being buckled together, penetrate in the fixed outer cylinder, form complete metal stator.
The invention has the beneficial effects as follows: the groove molded lines that metal bar material is cut into processing screw pump rotor operation after two, only need to use conventional process equipment, and need not special deep hole processing equipment and special machining machine and tool and cutter, can reduce the investment of process equipment greatly, and fall significantly.Low difficulty of processing improves machining accuracy, is a kind of cost-effective processing method.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is a full-metallic screw pump metal stator longitudinal sectional drawing of the present invention.
Fig. 2 is a full-metallic screw pump metal stator transverse cross-sectional view of the present invention.
1. fixed outer cylinders, 2. metal stator bars among Fig. 1,2,3. bar A sheet, 4. bar B sheet, 5. groove molded lines, 6. fixed groove, 7. fixed pin holes, 8. fixing pin, 9. high temperature sealing material.
Its processing method and program are.
A. will carry out for the bar of processing metal screw pump stator the processing of outer round surface and diameter and concentricity processes;
B. at the two ends of whole bar and middle part at a certain distance, process some to holddown groove, fixed pin holes along circumferential symmetry;
C. with spark erosion equipment bar is radially become two with the holddown groove heartcut;
D. radially process the continuous groove molded lines of screw pump rotor operation on the total length cross section respectively with the method for Milling Process at two bars cutting open;
Two bar junction surfaces that e. will process the groove molded lines be coated with behind the high temperature sealing material to being buckled together, the pin at fixed pin holes place wedging band screw links into an integrated entity two bars;
F. will penetrate in the fixed outer cylinder being buckled together the bar that fixes again, form complete metal stator.
Embodiment
In Fig. 1,2, certain distance is pressed at its two ends of metal stator bar (2) and middle part, longitudinally is symmetrily processed with some to fixed groove (6), fixed pin holes (7); With electrical spark cutting and be processed with bar A sheet (3) and the bar B sheet (4) of groove molded lines (5), link into an integrated entity by fixing pin (8) make-up, penetrate the complete metal screw pump stator of the middle formation of fixed outer cylinder (1) with the drive fit mode.Its surface need be coated with high temperature sealing material (9) before bar A sheet (3) was connected with bar B sheet (4) make-up.
Claims (3)
1. the processing method of a full-metallic screw pump stator is characterized in that: include following steps:
The processing of outer round surface and diameter and concentricity is carried out on the bar surface that a. will be used for the processing metal screw pump;
B. press certain distance at the two ends and the middle part of whole bar, process some fixed groove, fixed pin holes along circumferential symmetry;
C. with spark erosion plant bar is radially become two with the fixed groove heartcut
Sheet;
D. two bars cutting open radially on the total length cross section with the method for Milling Process
Process the continuous groove molded lines of screw pump rotor operation respectively;
Two bar junction surfaces that e. will process the groove molded lines be coated with behind the high temperature sealing material to being buckled together, the pin at fixed pin holes place wedging band screw links into an integrated entity two bars;
F. will penetrate in the fixed outer cylinder being buckled together the bar that fixes again, form complete metal stator.
2. the processing method of a kind of full-metallic screw pump stator according to claim 1 is characterized in that: back processing also comprises the steps: its inner chamber is carried out polishing treatment to improve its degree of finish.
3. the processing method of a kind of full-metallic screw pump stator according to claim 1 is characterized in that: the bar that two bar make-ups fix adopts the drive fit mode to penetrate in the fixed outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010604651 CN102062089A (en) | 2010-12-24 | 2010-12-24 | Method for machining full metal screw pump stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010604651 CN102062089A (en) | 2010-12-24 | 2010-12-24 | Method for machining full metal screw pump stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102062089A true CN102062089A (en) | 2011-05-18 |
Family
ID=43997523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010604651 Pending CN102062089A (en) | 2010-12-24 | 2010-12-24 | Method for machining full metal screw pump stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102062089A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501016A (en) * | 2011-11-04 | 2012-06-20 | 中国海洋石油总公司 | Method for machining all-metal screw pump stator |
| CN102581551A (en) * | 2011-12-31 | 2012-07-18 | 重庆明珠机电有限公司 | Method for forming workpieces with deep-hole spiral special-shaped curved surfaces |
| CN104259305A (en) * | 2014-09-15 | 2015-01-07 | 刘云卿 | Screw pump iso-wall-thickness metal stator machining device and forming method thereof |
| CN104338902A (en) * | 2013-07-26 | 2015-02-11 | 爱知机械工业株式会社 | Mold apparatus for casting cylinder block, cylinder block and cylinder block casting method |
| CN104416330A (en) * | 2013-08-30 | 2015-03-18 | 长江大学 | Block-based numerical control processing method for inner cavity of helical camber of stator of metal screw drill |
| CN104874978A (en) * | 2015-04-17 | 2015-09-02 | 中石化石油工程机械有限公司研究院 | Machining method for all-metal screw stator |
| CN105562617A (en) * | 2014-11-07 | 2016-05-11 | 中国石油化工股份有限公司 | Split forming method for metal stator of screw pump |
| CN105729074A (en) * | 2014-10-14 | 2016-07-06 | 东营凯维石油科技有限责任公司 | Use method of all-metal screw pump stator assisted-machining device |
| CN109538112A (en) * | 2019-01-04 | 2019-03-29 | 中国地质大学（北京） | It is a kind of to be set with spliced all-metal screw stator and its processing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059940U (en) * | 1990-02-12 | 1990-08-01 | 天津市工业泵总厂 | Sectionalized combination type single screw-stem pump bush |
| US5807087A (en) * | 1997-03-21 | 1998-09-15 | Tarby, Inc. | Stator assembly for a progressing cavity pump |
| CN1518639A (en) * | 2001-06-21 | 2004-08-04 | PCM��ҵ��˾ | Method for making Moineau pump stator and resulting stator |
| WO2009024279A1 (en) * | 2007-08-17 | 2009-02-26 | Seepex Gmbh | Eccentric worm pump with split stator |
| CN101892982A (en) * | 2010-06-28 | 2010-11-24 | 中国石油大学(北京) | Single-screw metal screw pump stator and processing method for inner helical surface thereof |
-
2010
- 2010-12-24 CN CN 201010604651 patent/CN102062089A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2059940U (en) * | 1990-02-12 | 1990-08-01 | 天津市工业泵总厂 | Sectionalized combination type single screw-stem pump bush |
| US5807087A (en) * | 1997-03-21 | 1998-09-15 | Tarby, Inc. | Stator assembly for a progressing cavity pump |
| CN1518639A (en) * | 2001-06-21 | 2004-08-04 | PCM��ҵ��˾ | Method for making Moineau pump stator and resulting stator |
| WO2009024279A1 (en) * | 2007-08-17 | 2009-02-26 | Seepex Gmbh | Eccentric worm pump with split stator |
| CN101892982A (en) * | 2010-06-28 | 2010-11-24 | 中国石油大学(北京) | Single-screw metal screw pump stator and processing method for inner helical surface thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102501016A (en) * | 2011-11-04 | 2012-06-20 | 中国海洋石油总公司 | Method for machining all-metal screw pump stator |
| CN102581551A (en) * | 2011-12-31 | 2012-07-18 | 重庆明珠机电有限公司 | Method for forming workpieces with deep-hole spiral special-shaped curved surfaces |
| CN104338902B (en) * | 2013-07-26 | 2017-11-14 | 爱知机械工业株式会社 | Cylinder casting die device, cylinder body and method for casting cylinder body |
| CN104338902A (en) * | 2013-07-26 | 2015-02-11 | 爱知机械工业株式会社 | Mold apparatus for casting cylinder block, cylinder block and cylinder block casting method |
| CN104416330A (en) * | 2013-08-30 | 2015-03-18 | 长江大学 | Block-based numerical control processing method for inner cavity of helical camber of stator of metal screw drill |
| CN104259305B (en) * | 2014-09-15 | 2016-03-16 | 刘云卿 | Wall thickness metal stator process equipment and the forming methods thereof such as a kind of screw pump |
| CN104259305A (en) * | 2014-09-15 | 2015-01-07 | 刘云卿 | Screw pump iso-wall-thickness metal stator machining device and forming method thereof |
| CN105729074A (en) * | 2014-10-14 | 2016-07-06 | 东营凯维石油科技有限责任公司 | Use method of all-metal screw pump stator assisted-machining device |
| CN105729074B (en) * | 2014-10-14 | 2018-03-09 | 东营凯维石油科技有限责任公司 | A kind of application method of full metal screw pump stator auxiliary machining device |
| CN105562617A (en) * | 2014-11-07 | 2016-05-11 | 中国石油化工股份有限公司 | Split forming method for metal stator of screw pump |
| CN104874978A (en) * | 2015-04-17 | 2015-09-02 | 中石化石油工程机械有限公司研究院 | Machining method for all-metal screw stator |
| CN104874978B (en) * | 2015-04-17 | 2017-04-12 | 中石化石油工程机械有限公司研究院 | Machining method for all-metal screw stator |
| CN109538112A (en) * | 2019-01-04 | 2019-03-29 | 中国地质大学（北京） | It is a kind of to be set with spliced all-metal screw stator and its processing method |
| CN109538112B (en) * | 2019-01-04 | 2023-09-08 | 中国地质大学（北京） | Processing method of sleeved spliced all-metal screw stator |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20110518 |