CN104377904A - Forming device for equal-wall-thickness metal stator lining and machining method for metal lining stator - Google Patents
Forming device for equal-wall-thickness metal stator lining and machining method for metal lining stator Download PDFInfo
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- CN104377904A CN104377904A CN201410668578.4A CN201410668578A CN104377904A CN 104377904 A CN104377904 A CN 104377904A CN 201410668578 A CN201410668578 A CN 201410668578A CN 104377904 A CN104377904 A CN 104377904A
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Abstract
The invention relates to a forming device for an equal-wall-thickness metal stator lining and a machining method for a metal lining stator for petroleum and gas drilling. According to the technical scheme, the forming device for the equal-wall-thickness metal stator lining mainly comprises a gas storage chamber, a high-pressure seal set, a gas flow channel, a forming mold core, a pipe, a seal cartridge, an end plug, a connector, lifting rings, a hook, a sealing flange and a high pressure cylinder; a machining device for the metal lining stator mainly comprises the metal stator lining, a stator shell, a bonding layer, a rubber injection hole, an equal-wall-thickness rubber lining, a rubber injection mold core, plugs, fixing nuts and through holes. The metal stator lining is obtained through the forming device for the equal-wall-thickness metal stator lining, and then the equal-wall-thickness metal lining stator can be machined. The forming device for the equal-wall-thickness metal stator lining and the machining method for the metal lining stator can increase the output torque of a screw motor, prolong the service life of the screw motor, improve the working efficiency of the screw motor and lower the machining difficulty and machining cost of the equal-wall-thickness screw drill stator, and have important engineering application value.
Description
Technical field
The present invention relates to the screw drilling tool stator applied in a kind of oil, gas drilling field, particularly wait wall thickness metal stator lining building mortion and metal lining processing method of stator.
Background technology
Helicoid hydraulic motor is mud motor conventional in oil, gas drilling engineering, it comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly, wherein motor assembly is for helicoid hydraulic motor provides the core component of power, is made up of rotor and stator two essential parts.Conventional motor stator is made up of stator case and rubber bushing, and stator case inner chamber is smooth, cylindrical peripheral surface, and rubber is bonded in stator case inwall by sulfuration process, and the endoporus of rubber bushing is continuous helical curved surface.In the course of work, under the extruding and rotor annular seal space differential pressure action of rotor cycle, due to rubber bushing wall thickness not etc., rubber bushing by uneven distortion, thus causes rubber bushing mechanical sealing performance to weaken, and affects motor operations efficiency, heat radiation simultaneously due to rubber bushing is uneven, thermal hysteresis is serious, makes rubber very easily aging and tear, reduces its useful life.
In recent years, the wall-thickness screw drilling tool motor stator such as to propose both at home and abroad, because the wall thickness of stator rubber lining is substantially identical, stressed rear distortion is even, resistance capacity to deformation is strong, and heat dispersion and sealing property improve, and improve operating efficiency and the useful life of helicoid hydraulic motor, but same wall-thickness stator shell inner surface is continuous helical curved surface, difficulty of processing is large and cost is higher.Therefore, research processing technology is simple, processing cost is lower, operating efficiency is high and the helicoid hydraulic motor of long service life has important engineer applied value.
Summary of the invention
The object of the invention is to solve conventional screw drilling tool stator inefficiency, useful life short, and etc. the large and difficult problem that cost is high of wall-thickness screw drilling tool stator processing difficulty, spy such as to provide at wall thickness metal stator lining building mortion and the metal lining processing method of stator.
For achieving the above object, the present invention solves the technical scheme that this technical problem adopts: wait wall thickness metal stator lining building mortion and metal lining processing method of stator, these wall thickness metal stator lining building mortions mainly comprise that air storing cavity, high pressure sealing group, gas flow, shaping core rod, pipe fitting, sealing shroud, end are stifled, joint, suspension ring, hook, sealing flange and high pressure cylinder, its architectural feature is: pipe fitting is enclosed within outside shaping core rod, and two ends endoporus is stifled fixing by end; Settle high pressure sealing group outside pipe fitting two ends, be abutted against head and sealing shroud is fixed; Experimental rig is placed in high pressure cylinder, high pressure cylinder upper end sealing flange seals, and utilizes hook to connect the suspension ring of sealing flange and experimental rig, pressurization in high pressure cylinder, the generation plastic deformation of pipe fitting pressurized and finishing die outer core are fitted, thus obtains metal stator lining; Air between pipe fitting and shaping core rod is compressed into air storing cavity by gas flow; The processing method utilizing the metal stator lining obtained to manufacture metal lining stator is: be placed in stator case by metal stator lining, injecting glue core rod is placed in metal stator lining, metal stator lining two ends are fixed by plug, and hold-down nut is connected with stator case and plug; Circumferentially hole is opened in the middle part of metal stator lining, in stator case and metal stator lining endoporus, rubber is noted by hole for injecting glue and through hole, after injecting glue completes, shutoff hole for injecting glue, tack coat is formed between stator case and metal stator lining, the wall thickness rubber bushings such as metal stator lining endoporus formation, thus the wall thickness metal lining stators such as acquisition.
The described pressure waiting the high pressure sealing group of wall thickness metal stator lining building mortion can bear 300MPa; Described metal stator lining surfaces externally and internally is spiral camber, circumferentially opens 2-4 through hole in the middle part of it.
The beneficial effect that the present invention has is: (1) this screw drilling tool stator inside is for waiting wall thickness metal lining and waiting wall thickness rubber layer, accelerate the radiating rate of stator, improve the bearing capacity of stator intensity, annular seal space, and the operating efficiency of motor and useful life; Etc. (2) wall thickness metal lining stator has the common advantage waiting wall-thickness screw drilling tool stator, reduces difficulty of processing and the processing cost of same wall-thickness stator Inner Spiral Surface simultaneously.
Accompanying drawing explanation
Fig. 1 is that the present invention waits wall thickness metal stator lining building mortion structural representation;
Fig. 2 is that the present invention waits wall thickness metal stator lining schematic diagram;
Fig. 3 waits wall thickness metal lining stator processing apparatus structure schematic diagram;
Fig. 4 waits wall thickness metal lining stator structure schematic diagram.
In figure: 1. air storing cavity, 2. high pressure sealing group, 3. gas flow, 4. shaping core rod, 5. pipe fitting, 6. sealing shroud, 7. end blocks up, 8. joint, 9. suspension ring, 10. link up with, 11. sealing flanges, 12. high pressure cylinders, 13. metal stator linings, 14. stator cases, 15. tack coats, 16. hole for injecting glue, 17. rubber bushings such as wall thickness such as grade, 18. injecting glue core rods, 19. plugs, 20. hold-down nuts, 21. through holes.
Embodiment
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the wall thickness metal stator lining building mortions such as the present invention and metal lining processing method of stator, its building mortion such as lining such as metal stator such as wall thickness such as grade mainly comprises that air storing cavity 1, high pressure sealing group 2, gas flow 3, shaping core rod 4, pipe fitting 5, sealing shroud 6, end are stifled 7, joint 8, suspension ring 9, hook 10, sealing flange 11 and high pressure cylinder 12, its architectural feature is: pipe fitting 5 is enclosed within outside shaping core rod 4, and two ends endoporus is fixed by end stifled 7; Pipe fitting 5 settles high pressure sealing group 2 outside two ends, be abutted against 8 and sealing shroud 6 fix; Experimental rig is placed in high pressure cylinder 12, high pressure cylinder 12 upper end sealing flange 11 seals, hook 10 is utilized to connect the suspension ring 9 of sealing flange 11 and experimental rig, pressurization in high pressure cylinder 12, the generation plastic deformation of pipe fitting 5 pressurized and shaping core rod 4 outer wall are fitted, thus obtains metal stator lining 13; Air between pipe fitting 5 and shaping core rod 4 is compressed into air storing cavity 1 by gas flow 3, thus avoids because air is not got rid of, and causes metal stator lining 13 to paste the ropy situation generation of mould; Metal lining stator processing device mainly comprise metal stator lining 13, stator case 14, tack coat 15, hole for injecting glue 16, etc. wall thickness rubber bushing 17, injecting glue core rod 18, plug 19, hold-down nut 20 and through hole 21; The processing method of metal lining stator is: be placed in by metal stator lining 13 in stator case 14, injecting glue core rod 18 is placed in metal stator lining 13, metal stator lining 13 two ends are fixed by plug 19, and hold-down nut 20 is connected with stator case 14 and plug 19; Hole 21 is circumferentially opened in the middle part of metal stator lining 13, in stator case 14 and metal stator lining 13 endoporus, rubber is noted by hole for injecting glue 16 and through hole 21, after injecting glue completes, shutoff hole for injecting glue 16, tack coat 15 is formed between stator case 14 and metal stator lining 13, the wall thickness rubber bushings 17 such as metal stator lining 13 endoporus formation, thus the wall thickness metal lining stators such as acquisition.
The described pressure waiting the high pressure sealing group 2 of wall thickness metal stator lining building mortion can bear 300MPa; Described metal stator lining 13 surfaces externally and internally is spiral camber, circumferentially opens 2-4 through hole 21 in the middle part of it.
The metal lining stator structure that the present invention obtains accelerates the radiating rate of stator, improve the bearing capacity of stator intensity, annular seal space, and the operating efficiency of motor and useful life, and processing method of the present invention reduces difficulty of processing and the processing cost of same wall-thickness stator Inner Spiral Surface.
Claims (3)
1. wait wall thickness metal stator lining building mortion and metal lining processing method of stator, its building mortion such as lining such as metal stator such as wall thickness such as grade mainly comprises air storing cavity (1), high pressure sealing group (2), gas flow (3), shaping core rod (4), pipe fitting (5), sealing shroud (6), end stifled (7), joint (8), suspension ring (9), hook (10), sealing flange (11) and high pressure cylinder (12), its architectural feature is: pipe fitting (5) is enclosed within shaping core rod (4) outward, and two ends endoporus is fixed by end stifled (7); Settle high pressure sealing group (2) outside pipe fitting (5) two ends, be abutted against head (8) and sealing shroud (6) and fix; Experimental rig is placed in high pressure cylinder (12), high pressure cylinder (12) upper end sealing flange (11) seals, hook (10) is utilized to connect the suspension ring (9) of sealing flange (11) and experimental rig, pressurization in high pressure cylinder (12), pipe fitting (5) pressurized generation plastic deformation and shaping core rod (4) outer wall are fitted, thus obtains metal stator lining (13); Air between pipe fitting (5) and shaping core rod (4) is compressed into air storing cavity (1) by gas flow (3); The processing method utilizing the metal stator lining (13) obtained to manufacture metal lining stator is: be placed in by metal stator lining (13) in stator case (14), injecting glue core rod (18) is placed in metal stator lining (13), metal stator lining (13) two ends are fixed by plug (19), and hold-down nut (20) is connected with stator case (14) and plug (19); Hole (21) is circumferentially opened at metal stator lining (13) middle part, in stator case (14) and metal stator lining (13) endoporus, rubber is noted by hole for injecting glue (16) and through hole (21), after injecting glue completes, shutoff hole for injecting glue (16), tack coat (15) is formed between stator case (14) and metal stator lining (13), the wall thickness rubber bushings (17) such as metal stator lining (13) endoporus formation, thus the wall thickness metal lining stators such as acquisition.
2. wall thickness metal stator lining building mortion such as grade according to claim 1 and metal lining processing method of stator, is characterized in that: described high pressure sealing group (2) can bear the pressure of 300MPa.
3. wall thickness metal stator lining building mortion such as grade according to claim 1 and metal lining processing method of stator, is characterized in that: described metal stator lining (13) surfaces externally and internally is spiral camber, circumferentially open 2-4 through hole (21) in the middle part of it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668578.4A CN104377904B (en) | 2014-11-21 | 2014-11-21 | Deng wall thickness metal stator lining building mortion and metal lining processing method of stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410668578.4A CN104377904B (en) | 2014-11-21 | 2014-11-21 | Deng wall thickness metal stator lining building mortion and metal lining processing method of stator |
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| Publication Number | Publication Date |
|---|---|
| CN104377904A true CN104377904A (en) | 2015-02-25 |
| CN104377904B CN104377904B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410668578.4A Expired - Fee Related CN104377904B (en) | 2014-11-21 | 2014-11-21 | Deng wall thickness metal stator lining building mortion and metal lining processing method of stator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356646A (en) * | 2015-11-06 | 2016-02-24 | 西南石油大学 | Equal-wall-thickness metal lining screw motor and glue injection technique thereof |
| CN106437492A (en) * | 2016-09-09 | 2017-02-22 | 石家庄博深石油机械有限公司 | Equal-wall thickness screw drill motor and manufacturing technology |
| CN109915044A (en) * | 2019-03-22 | 2019-06-21 | 中国地质大学（北京） | A kind of assembled helicoid hydraulic motor metal stator and its axial processing and assembling |
-
2014
- 2014-11-21 CN CN201410668578.4A patent/CN104377904B/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 边慧光 等: "新型螺旋等壁厚空心螺杆泵定子", 《橡胶工业》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356646A (en) * | 2015-11-06 | 2016-02-24 | 西南石油大学 | Equal-wall-thickness metal lining screw motor and glue injection technique thereof |
| CN106437492A (en) * | 2016-09-09 | 2017-02-22 | 石家庄博深石油机械有限公司 | Equal-wall thickness screw drill motor and manufacturing technology |
| CN109915044A (en) * | 2019-03-22 | 2019-06-21 | 中国地质大学（北京） | A kind of assembled helicoid hydraulic motor metal stator and its axial processing and assembling |
| CN109915044B (en) * | 2019-03-22 | 2023-11-21 | 中国地质大学（北京） | Axial machining and assembling process for metal stator of assembled screw drilling tool |
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| Publication number | Publication date |
|---|---|
| CN104377904B (en) | 2016-08-17 |
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