CN201219215Y - Pre-outline type screw drill motor stator - Google Patents
Pre-outline type screw drill motor stator Download PDFInfo
- Publication number
- CN201219215Y CN201219215Y CNU2008201084964U CN200820108496U CN201219215Y CN 201219215 Y CN201219215 Y CN 201219215Y CN U2008201084964 U CNU2008201084964 U CN U2008201084964U CN 200820108496 U CN200820108496 U CN 200820108496U CN 201219215 Y CN201219215 Y CN 201219215Y
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- stator
- rubber lining
- drilling tool
- wall thickness
- rubber
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Abstract
A pre-outline type screw drill motor stator. In order to overcome the insufficiency existing in the prior screw drill motor stator such as unequal wall thickness of rubber bushing, non-uniform deformation in the operating status, low rubber mechanical property, low motor work efficiency and reduced stator service life, and the like. The utility model includes a stator housing (1) and a stator rubber bushing (2), wherein, the inner bore of the stator rubber bushing (2) is continuous screw holes, the transverse cross-section is in a radial equispaced tooth form, the outer surface of the stator rubber bushing (2) is bonded to the inner bore of the stator housing (1), the cross-sectional wall thickness error of the stator rubber bushing (2) is 0-20mm, and the inner bore of the stator housing (1) has an identical shape with the exterior outline of the stator rubber bushing (2). The utility model has beneficial effects of basically equal wall thickness of rubber stator, uniform deformation under force, enhanced rubber mechanical property, improved work efficiency of the screw drill motor, and extended stator service life.
Description
Affiliated technical field
The utility model relates to a kind of oil gas drilling exploitation and uses the down-hole screw drilling tool motor, especially relates to a kind of pre-profile formula screw drilling tool motor stator.
Background technology
Helicoid hydraulic motor is the widely used mud motor of oil drilling, comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly, and wherein motor stator is made up of stator case and stator rubber lining.The outer wall of stator rubber lining and stator case endoporus are bonding; The endoporus of stator rubber is the continuous helical line style, and cross section is that radial equipartition is petal-shaped, and petal head number is more than 2 or 2, and petal quantity is even numbers usually.At present, the helicoid hydraulic motor stator structure of extensive use as shown in Figure 1, stator case is for waiting wall thickness metal circular tube; Stator rubber lining cylindrical is a column type, endoporus is the continuous helical line style, in the course of work under the extruding and high pressure effect of rotor, stator rubber will deform, because stator rubber lining wall thickness do not wait, to be out of shape inhomogeneously, the rubber manufacturing machinery performance of the motor stator rubber bushing under the operating state weakens, influence motor operations efficient, reduce stator useful life.
The utility model content
For the stator rubber lining wall thickness that overcomes existing screw drilling tool motor stator existence does not wait, deficiencies such as distortion is inhomogeneous under the operating state, mechanical performance is low, influence motor operations efficient, reduction stator useful life, the utility model provides a kind of pre-profile formula screw drilling tool motor stator, promptly the stator case endoporus process in advance one with the stator rubber lining in the identical or roughly the same stator case of hole shape.
The technical scheme that its technical problem that solves the utility model adopts is: pre-profile formula screw drilling tool motor stator comprises stator case, stator rubber lining, stator rubber lining endoporus is the continuous helical line style, cross section is the radial equipartition flute profile, the outer surface of stator rubber lining and the endoporus of stator case are bonding, stator rubber lining cross section wall thickness error is 0～20mm, and the stator case endoporus is identical with the outer contour shape of stator rubber lining.
The beneficial effects of the utility model are, stator rubber is to wait wall thickness substantially, and the distortion of stressed back evenly, the mechanical performance of rubber is enhanced, and improves the screw drilling tool motor operating efficiency, prolong stator useful life.
Description of drawings
Fig. 1 is existing screw drilling tool motor stator cross sectional representation.
Fig. 2 is the pre-profile formula of a utility model screw drilling tool motor stator cross sectional representation.
Among the figure: 1. stator case, 2. stator rubber lining.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing 2 and embodiment.
The pre-profile formula of the utility model screw drilling tool motor stator, comprise stator case 1, stator rubber lining 2, the endoporus of stator rubber lining 2 is the continuous helical line style, and cross section is the radial equipartition flute profile, and stator rubber lining 2 cross section radial thickness equate or be equal substantially; Stator case 1 endoporus is identical with the outer contour shape of stator rubber lining 2; The endoporus of the outer surface of stator rubber lining 2 and stator case 1 is bonding.
The pre-profile formula of the utility model screw drilling tool motor stator, it is identical or basic identical at first stator case 1 endoporus to be processed into stator rubber lining 2 interior hole shapes, it is pre-profile, the spiral profile of stator case 1 internal projection becomes reinforcing rib structure, can effectively improve the intensity and the bearing capacity of stator rubber lining 2, improve the heat-conductive characteristic of motor stator, reduce temperature sensitivity, prolong stator useful life.
Claims (9)
1. pre-profile formula screw drilling tool motor stator, comprise stator case, stator rubber lining, stator rubber lining endoporus is the continuous helical line style, cross section is the radial equipartition flute profile, the outer surface of stator rubber lining and the endoporus of stator case are bonding, it is characterized in that: stator rubber lining (2) cross section wall thickness error is 0～20mm, and stator case (1) endoporus is identical with the outer contour shape of stator rubber lining (2).
2. pre-profile formula screw drilling tool motor stator according to claim 1 is characterized in that: described stator rubber lining (2) cross section wall thickness error is 1～15mm.
3. pre-profile formula screw drilling tool motor stator according to claim 2 is characterized in that: described stator rubber lining (2) cross section wall thickness error is 2～10mm.
4. pre-profile formula screw drilling tool motor stator according to claim 3 is characterized in that: described stator rubber lining (2) cross section wall thickness error is 3～5mm.
5. pre-profile formula screw drilling tool motor stator according to claim 1 is characterized in that: the monolateral thickness of described stator rubber lining (2) is 1～30mm.
6. pre-profile formula screw drilling tool motor stator according to claim 5 is characterized in that: the monolateral thickness of described stator rubber lining (2) is 2～20mm.
7. pre-profile formula screw drilling tool motor stator according to claim 6 is characterized in that: the monolateral thickness of described stator rubber lining (2) is 3～15mm.
8. pre-profile formula screw drilling tool motor stator according to claim 7 is characterized in that: the monolateral thickness of described stator rubber lining (2) is 4～10mm.
9. pre-profile formula screw drilling tool motor stator according to claim 8 is characterized in that: the monolateral thickness of described stator rubber lining (2) is 5～8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201084964U CN201219215Y (en) | 2008-06-11 | 2008-06-11 | Pre-outline type screw drill motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201084964U CN201219215Y (en) | 2008-06-11 | 2008-06-11 | Pre-outline type screw drill motor stator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201219215Y true CN201219215Y (en) | 2009-04-08 |
Family
ID=40542050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201084964U Expired - Lifetime CN201219215Y (en) | 2008-06-11 | 2008-06-11 | Pre-outline type screw drill motor stator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201219215Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101850449A (en) * | 2010-04-17 | 2010-10-06 | 内蒙古北方重工业集团有限公司 | Preparation method and equipment of screw drill inside spin pre-outline stator |
| CN102629796A (en) * | 2012-03-26 | 2012-08-08 | 西南石油大学 | Pipe fitting inner high-pressure forming equal-wall thickness screw motor and processing process thereof |
| CN101656438B (en) * | 2009-09-15 | 2013-10-02 | 江汉石油钻头股份有限公司 | Screw drilling tool motor stator |
| CN107819363A (en) * | 2016-09-12 | 2018-03-20 | 中国石油天然气集团公司 | Motor stator and its manufacture method |
-
2008
- 2008-06-11 CN CNU2008201084964U patent/CN201219215Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101656438B (en) * | 2009-09-15 | 2013-10-02 | 江汉石油钻头股份有限公司 | Screw drilling tool motor stator |
| CN101850449A (en) * | 2010-04-17 | 2010-10-06 | 内蒙古北方重工业集团有限公司 | Preparation method and equipment of screw drill inside spin pre-outline stator |
| CN102629796A (en) * | 2012-03-26 | 2012-08-08 | 西南石油大学 | Pipe fitting inner high-pressure forming equal-wall thickness screw motor and processing process thereof |
| CN107819363A (en) * | 2016-09-12 | 2018-03-20 | 中国石油天然气集团公司 | Motor stator and its manufacture method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CNPC BOHAI PETROLEUM EQUIPMENT MANUFACTURING CO., Free format text: FORMER OWNER: DAGANG OILFIELD GROUP, ZHONGCHENG MACHINERY MANUFACTURING CO., LTD. Effective date: 20100903 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 300280 CHUANGANG ROAD, DAGANG OILFIELD, TIANJIN CITY TO: 300280 CHUANGANG ROAD, DAGANG OILFIELD, DAGANG DISTRICT, TIANJIN CITY |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20100903 Address after: 300280 Tianjin City, Grand Port Dagang Oilfield Sichuan Road Patentee after: CNPC Bohai Equipment Manufacturing Co., Ltd. Address before: 300280 Tianjin Dagang Oilfield Sichuan Road Patentee before: Dagang Oilfield Group, Zhongcheng Machinery Manufacturing Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090408 |
|
| CX01 | Expiry of patent term |