CN202178619U - Screw drilling tool stator filler with ball - Google Patents
Screw drilling tool stator filler with ball Download PDFInfo
- Publication number
- CN202178619U CN202178619U CN201120326872.9U CN201120326872U CN202178619U CN 202178619 U CN202178619 U CN 202178619U CN 201120326872 U CN201120326872 U CN 201120326872U CN 202178619 U CN202178619 U CN 202178619U
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- China
- Prior art keywords
- rigid structure
- stator
- ball
- drilling tool
- rubber lining
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- Expired - Fee Related
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to a screw drilling tool stator filler with balls, which is used for a petroleum drilling well or a natural gas drilling well. The technical scheme of the utility model is that a rigid structure is bonded on the interior surface of a stator housing, wherein the rigid structure is a frame structure formed by a lot of balls bonding together with gaps, and the interior wall of the rigid structure is of a continuous spiral curved surface; an equal wall-thickness rubber lining is bonded on the interior surface of the rigid structure, and the interior wall of the equal wall-thickness rubber lining is also of a continuous spiral curved surface; the gaps of the rigid structure are filled with rubber material which is of the same material with the rubber lining; and a motor rotor is engaged with the equal wall-thickness rubber lining to form a sealing cavity. The rigid structure of the utility model enables heat radiation to be accelerated, and allows the intensity of the breakable part of the rubber lining of a conventional screw drilling tool stator to be enhanced. The equal wall-thickness rubber lining exhibits a strong deformation resistance capability, and is uniform in deformation and fine in sealing property. The screw drilling tool stator filler with balls enables the service life and the work efficiency of a motor to be improved, allows the machining difficulty and the machining cost for the equal wall-thickness screw drilling tool stator to be reduced, and has s wide application value.
Description
Technical field
The utility model relates to the screw drilling tool motor stator that drilling well is used in a kind of oil, the gas drilling field, and particularly a kind of ball is filled the helicoid hydraulic motor stator.
Background technology
Helicoid hydraulic motor is a mud motor commonly used in oil, the gas drilling engineering; It comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly; Wherein motor assembly is the core component that power is provided for helicoid hydraulic motor, is made up of rotor and two essential parts of stator.Conventional motor stator is made up of stator case and rubber bushing, and the stator case inner chamber is the smooth face of cylinder, and rubber is bonded in the stator case inwall through sulfuration process, and the endoporus of rubber bushing is the continuous helical curved surface.In the course of work, under the extruding and rotor annular seal space differential pressure action of rotor cycle property, because the rubber bushing wall thickness does not wait; Inhomogeneous deformation will take place in rubber bushing, thereby cause the rubber bushing mechanical sealing performance to weaken, and influence motor operations efficient; Simultaneously because the heat radiation of rubber bushing is uneven; Thermal hysteresis is serious, makes rubber very easily aging and tear, and reduces its useful life.In recent years, proposed both at home and abroad to wait the wall thickness screw drilling tool motor stator, because the wall thickness of stator rubber lining is basic identical; The distortion of stressed back evenly; Resistance capacity to deformation is strong, and heat dispersion and sealing property improve, and has improved the operating efficiency and the useful life of motor; But the same wall-thickness stator shell inner surface is the continuous helical curved surface, and difficulty of processing is big and cost is higher.Therefore, research wall thickness screw drilling tool motor stators such as processing technology is simple and lower-cost have important application value.
Summary of the invention
The purpose of the utility model is short in order to solve conventional screw drilling tool stator inefficiency, useful life, and waits the difficult problem that wall thickness helicoid hydraulic motor stator difficulty of processing is big and cost is high, and a kind of ball filling helicoid hydraulic motor stator is provided especially.
For achieving the above object; The utility model solves the technical scheme that this technical problem adopted: a kind of ball is filled the helicoid hydraulic motor stator; By stator case, rigid structure and etc. the wall thickness rubber bushing form, its architectural feature is: the stator case inwall is the smooth face of cylinder; Bonding together the rigid structure that constitutes by a large amount of balls is bonded on the stator case inwall; The material of ball is a steel, and different shapes, size can be arranged, but good mobility will be arranged, and its equivalent diameter is 0.5 ~ 5mm, selects ball according to the gap width that rigid structure requires; The inwall of rigid structure is the continuous helical curved surface; Through sulfuration process wall thickness rubber bushings such as one deck are bonded on the rigid structure inwall, are filled the full elastomeric material identical during injecting glue in the slit of rigid structure with rubber bushing.
The beneficial effect that the utlity model has is: the rubber bushing of (1) this motor stator has improved the heat dispersion of rubber bushing for waiting wall thickness structure, has slowed down the rubber thermo-lag, has improved the useful life of motor; (2) between these wall thickness rubber bushings and the stator case rigid structure is arranged, the ability of rubber bushing resistance to deformation is strengthened, and distortion evenly; (3) material of rubber bushing with the rigid structure slit in the elastomeric material of filling identical, the two combines together, can prevent that the aliquation of rubber bushing from coming off; (4) this motor stator has the common advantage that waits wall thickness helicoid hydraulic motor stator, and it has reduced the difficulty of processing of same wall-thickness stator housing inside spin curved surface simultaneously, has simplified manufacturing process greatly, has reduced production cost.
Description of drawings
Fig. 1 is that the utility model ball is filled helicoid hydraulic motor stator cross sectional representation.
Fig. 2 is a conventional screw drilling tool motor stator cross sectional representation.
Fig. 3 is the cross sectional representation that stator case and ball are filled the stator core rod.
Fig. 4 is the stator cross sectional representation behind the filling ball.
Fig. 5 is the process schematic representation that in rigid structure, injects liquid metal.
Fig. 6 is the cross sectional representation when putting into injecting glue stator core rod.
Among the figure: 1. stator case, 2. rigid structure, 3. elastomeric material 4. waits the wall thickness rubber bushing, and 5. ball is filled the stator core rod, 6 helicla flutes, 7. injecting glue stator core rod, 8 helicla flute such as wall thickness such as grade, 9. storage device, 10. plating equipment.
Embodiment
As shown in Figure 2, the utility model is that a kind of ball is filled the helicoid hydraulic motor stator, by stator case 1, rigid structure 2 and etc. wall thickness rubber bushing 4 form, its architectural feature is: stator case 1 inwall is the smooth face of cylinder; Bonding together the rigid structure 2 that constitutes by a large amount of balls is bonded on stator case 1 inwall; The material of ball is a steel, and different shapes, size can be arranged, but good mobility will be arranged; Its equivalent diameter is 0.5 ~ 5mm, selects ball according to the gap width that rigid structure 2 requires; The inwall of rigid structure 2 is the continuous helical curved surface; Through sulfuration process wall thickness rubber bushings 4 such as one deck are bonded on the rigid structure inwall, are filled the identical elastomeric material 3 of full and rubber bushing such as wall thickness such as grade 4 during injecting glue in the slit of rigid structure.
Like Fig. 3, Fig. 4, Fig. 5, shown in Figure 6, ball is filled stator core rod 5 put into the stator case center, formed helicla flute 6 between the two, to wherein filling up the ball that can move freely, these balls are compressed and bond together, form rigid structure 2; The process of bonding ball has two kinds: the one, and ball plates the metal that one deck fusing point is lower than ball and stator case 1 earlier before putting into helicla flute 6; Like zinc, tin etc.; Put into helicla flute 6 backs whole stator case 1 is heated, make the volume metal molten that is plated in the ball surface, and then cooling; All balls are bonded together, form rigid structure 2; Another kind is to adopt plating equipment 10 in rigid structure, to inject the liquid metal that fusing point is lower than ball and stator case 1, and liquid metal injects downwards from stator case 1 top, is plated in the surface of ball; Unnecessary molten metal enters in the storage device 9; Again it is transported to stator case 1 top, continues circulation, until all balls all by the metal plated layer; Cooled and solidified forms rigid structure 2 then; The bonding process is carried out in the environment of vacuum or inert gas, in case the oxidation of solution stopping attitude metal and ball, some liquid adhesives that reinject are to strengthen the adhesion strength between the ball; The cooling back is taken out ball and is filled stator core rod 5; Put into an injecting glue stator core rod 7 that diameter is slightly little,, in waiting wall thickness helicla flute 8, inject elastic rubber material with the wall thickness helicla flutes 8 such as inner surface formation of rigid structure 2; Formation waits wall thickness rubber bushing 4; Elastomeric material can infiltrate the slit of rigid structure 2 simultaneously and the slit is filled up, and waits the elastomeric material 3 in wall thickness rubber bushing 4 and rigid structure 2 slits to form an integral body, has prevented effectively to wait the aliquation of wall thickness rubber bushing 4 to come off.
In the course of the work, the rigid structure 2 of motor stator and rubber bushing 4 etc. the wall thickness structure, strengthened the ability of its resistance to deformation, improved heat dispersion, thereby improved the useful life and the operating efficiency of motor greatly; The elastomeric material 3 of filling in rigid structure 2 slits is identical with the material that waits wall thickness rubber bushing 4, and the two is combined together, effectively prevents to wait the aliquation of wall thickness rubber bushing 4 to come off.
Claims (3)
1. a ball is filled the helicoid hydraulic motor stator; By stator case (1), rigid structure (2) and etc. wall thickness rubber bushing (4) etc. form; It is characterized in that: stator case (1) the inner surface a kind of rigid structure (2) that bonds, rigid structure (2) is bonded together by a large amount of balls and constitutes; In the slit of rigid structure (2), be filled with elastomeric material (3), be bonded with wall thickness rubber bushings (4) such as one deck on its inwall, waiting wall thickness rubber bushing (4) endoporus is the continuous helical curved surface.
2. a kind of ball according to claim 1 is filled the helicoid hydraulic motor stator; It is characterized in that: the endoporus of rigid structure (2) is the continuous helical curved surface; The ball material that constitutes rigid structure (2) is a steel; Different shapes, size can be arranged, but good mobility will be arranged, its equivalent diameter is 0.5 ~ 5mm.
3. a kind of ball according to claim 1 is filled the helicoid hydraulic motor stator, it is characterized in that: waiting wall thickness rubber bushing (4) and elastomeric material (3) is same material.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120326872.9U CN202178619U (en) | 2011-09-02 | 2011-09-02 | Screw drilling tool stator filler with ball |
| CN201110257603.6A CN102386692B (en) | 2011-09-02 | 2011-09-02 | Ball filling screw drill stator and processing technology |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120326872.9U CN202178619U (en) | 2011-09-02 | 2011-09-02 | Screw drilling tool stator filler with ball |
| CN201110257603.6A CN102386692B (en) | 2011-09-02 | 2011-09-02 | Ball filling screw drill stator and processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202178619U true CN202178619U (en) | 2012-03-28 |
Family
ID=50972942
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110257603.6A Active CN102386692B (en) | 2011-09-02 | 2011-09-02 | Ball filling screw drill stator and processing technology |
| CN201120326872.9U Expired - Fee Related CN202178619U (en) | 2011-09-02 | 2011-09-02 | Screw drilling tool stator filler with ball |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110257603.6A Active CN102386692B (en) | 2011-09-02 | 2011-09-02 | Ball filling screw drill stator and processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN102386692B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386692A (en) * | 2011-09-02 | 2012-03-21 | 西南石油大学 | Ball filling screw drill stator and processing technology |
| CN102797416A (en) * | 2012-07-08 | 2012-11-28 | 潍坊华铃柴油机动力有限公司 | Stator for screw drills and machining process of stator |
| CN114458524A (en) * | 2020-11-09 | 2022-05-10 | 中国石油天然气集团有限公司 | Embedded stator and screw motor |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104018791B (en) * | 2014-05-30 | 2016-04-13 | 盐城华亚石油机械制造有限公司 | The processing technology of the degumming preventing anticorrosion helicoid hydraulic motor of resistance to thermal change |
| CN107819363B (en) * | 2016-09-12 | 2020-01-07 | 中国石油天然气集团公司 | Motor stator and manufacturing method thereof |
| CN110439457B (en) * | 2019-09-05 | 2021-07-06 | 西南石油大学 | Underground power screw drill |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2295023C1 (en) * | 2006-05-24 | 2007-03-10 | Общество С Ограниченной Ответственностью "Вниибт-Буровой Инструмент" | Turbine screw downhole motor |
| CN201502339U (en) * | 2009-09-24 | 2010-06-09 | 西南石油大学 | Split composite liner-typed torque-reduction wear-prevention tool |
| US8777598B2 (en) * | 2009-11-13 | 2014-07-15 | Schlumberger Technology Corporation | Stators for downwhole motors, methods for fabricating the same, and downhole motors incorporating the same |
| CN102386692B (en) * | 2011-09-02 | 2013-05-29 | 西南石油大学 | Ball filling screw drill stator and processing technology |
-
2011
- 2011-09-02 CN CN201110257603.6A patent/CN102386692B/en active Active
- 2011-09-02 CN CN201120326872.9U patent/CN202178619U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386692A (en) * | 2011-09-02 | 2012-03-21 | 西南石油大学 | Ball filling screw drill stator and processing technology |
| CN102797416A (en) * | 2012-07-08 | 2012-11-28 | 潍坊华铃柴油机动力有限公司 | Stator for screw drills and machining process of stator |
| CN102797416B (en) * | 2012-07-08 | 2015-08-19 | 潍坊华铃柴油机动力有限公司 | A kind of helicoid hydraulic motor stator and processing technology thereof |
| CN114458524A (en) * | 2020-11-09 | 2022-05-10 | 中国石油天然气集团有限公司 | Embedded stator and screw motor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386692B (en) | 2013-05-29 |
| CN102386692A (en) | 2012-03-21 |
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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: 20120328 Termination date: 20120902 |