CN101882818A - Double-layer shell screw rod drilling tool motor stator - Google Patents
Double-layer shell screw rod drilling tool motor stator Download PDFInfo
- Publication number
- CN101882818A CN101882818A CN 201010228132 CN201010228132A CN101882818A CN 101882818 A CN101882818 A CN 101882818A CN 201010228132 CN201010228132 CN 201010228132 CN 201010228132 A CN201010228132 A CN 201010228132A CN 101882818 A CN101882818 A CN 101882818A
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- Prior art keywords
- housing
- positioning sleeve
- drilling tool
- screw rod
- shell body
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- 238000005553 drilling Methods 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 238000000576 coating method Methods 0.000 claims description 23
- 239000011248 coating agent Substances 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- WMGSQTMJHBYJMQ-UHFFFAOYSA-N aluminum;magnesium;silicate Chemical compound [Mg+2].[Al+3].[O-][Si]([O-])([O-])[O-] WMGSQTMJHBYJMQ-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 3
- 239000011491 glass wool Substances 0.000 claims description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 150000002910 rare earth metals Chemical class 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 230000032683 aging Effects 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- -1 aeroge Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The invention relates to a double-layer shell screw rod drilling tool motor stator, aiming at overcoming the defects of high stratum temperature when in deep drilling operation, and short service life of a motor caused by repaid ageing failure of a rubber bushing of the existing screw rod drilling tool motor stator under the condition of high temperature. The upper end of a stator shell (11) is fixedly connected with an upper locating sleeve (2), and the lower end thereof is fixedly connected with a lower locating sleeve (5); the excircle of the shell (11) is smaller than the excircles of the upper locating sleeve (2) and the lower locating sleeve (5); the upper locating sleeve (2) and the lower locating sleeve (5) which are fixedly connected with the shell (11) are fixedly installed at the middle part of the an outer shell (1); heat insulation filler (4) or an axial liquid flow channel (7) is arranged between the excircle of the shell (11) and an inner hole of the outer shell (1); or the space between excircle of the shell and the inner hole of the outer shell is vacuum. The double-layer shell screw rod drilling tool motor stator has the advantages of being simple and reasonable in structure and convenient for assembly, effectively reducing the influence of the high stratum temperature for a stator, and prolonging the service life of a screw rod drilling tool.
Description
Affiliated technical field
The present invention relates to a kind of screw drilling tool motor stator, especially relate to a kind of double-layer shell screw rod drilling tool motor stator.
Background technology
Helicoid hydraulic motor is the widely used mud motor of oil drilling, mainly comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly, and the composition that from top to bottom is fixedly connected sequentially.Motor is made up of rotor and stator; Stator is made up of housing and rubber bushing, and the outer wall of rubber bushing and housing endoporus are bonding; The endoporus of rubber bushing 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 housing has the screw thread that is connected with the helicoid hydraulic motor miscellaneous part in two ends up and down.At present, the housing of the helicoid hydraulic motor stator of extensive use is for waiting wall thickness metal circular tube; The rubber bushing cylindrical is column type (seeing accompanying drawing 1), endoporus is the continuous helical line style, in the course of work under the extruding and high pressure effect of rotor, rubber bushing will deform, because the rubber bushing wall thickness do not wait, to be out of shape inhomogeneously, the rubber manufacturing machinery performance of the stator rubber lining under the operating state weakens, influence motor operations efficient, reduce stator useful life.Novel pre-profile formula screw drilling tool motor stator (Chinese utility model patent, publication number CN201219215), process a stator case identical or roughly the same (seeing accompanying drawing 2) in advance at the stator case endoporus with hole shape in the rubber bushing, because the wall thickness of stator rubber lining is basic identical, distortion mechanical performance even, rubber in stressed back is enhanced, improve the screw drilling tool motor operating efficiency, prolong stator useful life.But when in the deep drilling operation, the formation temperature height sometimes can be up to more than 180 ℃, and the heat of down-hole surrounding environment reaches rubber bushing by stator case, and the rubber distortion of losing efficacy under hot conditions causes screw drilling tool motor efficient to reduce until damage.
Summary of the invention
In order to overcome formation temperature height when the deep drilling operation, the distortion of losing efficacy under hot conditions of the rubber bushing of existing screw drilling tool motor stator is fast, and the deficiency that causes motor to be lacked useful life the invention provides a kind of double-layer shell screw rod drilling tool motor stator.This double-layer shell screw rod drilling tool motor stator can delay the conduction of stratum heat, effectively prolongs helicoid hydraulic motor useful life.
The technical solution adopted for the present invention to solve the technical problems is: the stator of double-layer shell screw rod drilling tool motor stator comprises housing and rubber bushing, and rubber bushing is bonded in the housing identical with its outer contour shape.
A technical scheme of the present invention is, fixedlys connected with last positioning sleeve in the upper end of housing, fixedlys connected with following positioning sleeve in the lower end, and the housing cylindrical is less than last positioning sleeve, the cylindrical of positioning sleeve down; Last positioning sleeve of fixedlying connected with housing and following positioning sleeve are fixedly mounted on the shell body middle part, between the cylindrical of housing and the shell body endoporus annular space are arranged.
Another technical scheme of the present invention is, housing is installed in the shell body, and the upper/lower terminal of housing is fixedlyed connected with shell body, between housing middle part cylindrical and the shell body endoporus annular space arranged.
In the above-mentioned binomial technical scheme, in the annular space between the cylindrical of housing and the shell body endoporus thermal insulating filling is installed; Thermal insulating filling be polystyrene or/and aeroge or/and resin or/and super glass wool or/and phenolic foam or/and high silica wool or/and liquid.
In the binomial technical scheme, the annular space between the cylindrical of housing and the shell body endoporus can be a seal cavity before the present invention, is vacuum or air or other gas in the annular space.When being vacuum in the annular space, housing or/and shell body or/and go up positioning sleeve or/and have on the positioning sleeve down and vacuumize used hole.
The another technical scheme of the present invention is, fixedlys connected with last positioning sleeve in the upper end of housing, fixedlys connected with following positioning sleeve in the lower end, and the housing cylindrical is less than last positioning sleeve, the cylindrical of positioning sleeve down; Last positioning sleeve of fixedlying connected with housing and following positioning sleeve are fixedly mounted on the shell body middle part, between the cylindrical of housing and the shell body endoporus axial fluid course are arranged; There is the liquid opening that bore of stator is communicated with axial fluid course on last positioning sleeve and the following positioning sleeve.
The present invention's technical scheme again is, housing is installed in the shell body, and the upper/lower terminal of housing is fixedlyed connected with shell body, between housing middle part cylindrical and the shell body endoporus annular space arranged; There is the liquid opening that bore of stator is communicated with axial fluid course on the housing.
Housing outer surface in each technical scheme of the present invention has coating, and shell body endoporus, outer round surface have coating; The material of coating is composite aluminium-magnesium-silicate insulating moulding coating, rare earth thermal insulation coatings, application type composition silicate insulating moulding coating.There is the screw thread that is connected with the helicoid hydraulic motor miscellaneous part upper end of shell body, lower end.
The invention has the beneficial effects as follows, simple and reasonable, be convenient to assembling, thermal insulation layer (thermal insulating filling, fluid course, vacuum, air), coating etc. can effectively reduce the influence of stratum high-temperature to the stator rubber lining, prolong the useful life of helicoid hydraulic motor.
Description of drawings
Fig. 1 is the existing wall thickness metal circular tube screw drilling tool motor stator structural representation that waits.
Fig. 2 is a pre existing profile formula screw drilling tool motor stator structural representation.
Fig. 3 is the first embodiment of the invention structural representation.
Fig. 4 is the second embodiment of the invention structural representation.
Fig. 5 is the third embodiment of the invention structural representation.
Fig. 6 is the fourth embodiment of the invention structural representation.
Fig. 7 is the fifth embodiment of the invention structural representation.
Fig. 8 is the sixth embodiment of the invention structural representation.
Among the figure: 1. shell body, 2. go up positioning sleeve, 3. screw thread, 4. thermal insulating filling 5. descends positioning sleeve, 6. inner convex platform, 7. axial fluid course, 8. liquid opening, 9. coating, 10., 11. housings, 12. rubber bushings, 13. annular spaces.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Double-layer shell screw rod drilling tool motor stator of the present invention, mainly comprise stator, last positioning sleeve 2, following positioning sleeve 5, stator is made up of housing 11 and rubber bushing 12, and rubber bushing 12 can be (referring to the accompanying drawing 2) that waits wall thickness, also can be (referring to the accompanying drawing 1) that does not wait wall thickness.Rubber bushing 12 is bonded in the housing identical or roughly the same with its outer contour shape 11.There is the screw thread 3 that is connected with the helicoid hydraulic motor miscellaneous part upper end of shell body 1, lower end, and normally the upper end is connected with bypass valve housing, and the lower end is connected with the universal drive shaft housing.
First embodiment of the invention (referring to accompanying drawing 3), fixedly connected with last positioning sleeve 2 in the upper end of housing 11, and fixedly connected with following positioning sleeve 5 in the lower end, and housing 11 cylindricals are less than the cylindrical of last positioning sleeve 2, following positioning sleeve 5; The last positioning sleeve 2 and the following positioning sleeve 5 of fixedlying connected with housing 11 are fixedly mounted on shell body 1 middle part, promptly between the connecting thread 3 of shell body 1 upper/lower terminal, between the cylindrical of housing 11 and shell body 1 endoporus annular space 13 are arranged; Thermal insulating filling 4 is installed in the annular space 13.
Second embodiment of the invention (referring to accompanying drawing 4), housing 11 is installed in the shell body 1, and the upper/lower terminal of housing 11 is fixedlyed connected with shell body 1, between housing 11 middle part cylindricals and shell body 1 endoporus annular space 13 is arranged; Thermal insulating filling 4 is installed in the annular space 13.
Thermal insulating filling 4 among above-mentioned first and second embodiment can have multiple choices, selects the material of heat conductivility difference usually for use, as polystyrene, aeroge, resin, super glass wool, phenolic foam, high silica wool, liquid etc.The thermal insulating filling 4 of filling can be a homogenous material, also can be the combination more than 2 kinds or 2 kinds in the above-mentioned material.
Third embodiment of the invention (referring to accompanying drawing 5), fixedly connected with last positioning sleeve 2 in the upper end of housing 11, and fixedly connected with following positioning sleeve 5 in the lower end, and housing 11 cylindricals are less than the cylindrical of last positioning sleeve 2, following positioning sleeve 5; The last positioning sleeve 2 and the following positioning sleeve 5 of fixedlying connected with housing 11 are fixedly mounted on shell body 1 middle part, promptly between the connecting thread 3 of shell body 1 upper/lower terminal, between the cylindrical of housing 11 and shell body 1 endoporus annular space 13 are arranged; Annular space 13 is a seal cavity, is vacuum in the annular space 13, also can be full of air or other gas.
Fourth embodiment of the invention (referring to accompanying drawing 6), housing 11 is installed in the shell body 1, and the upper/lower terminal of housing 11 is fixedlyed connected with shell body 1, between housing 11 middle part cylindricals and shell body 1 endoporus annular space 13 is arranged; Annular space 13 is a seal cavity, is vacuum in the annular space 13, also can be full of air or other gas.
When the annular space 13 when between housing 11 cylindricals and shell body 1 endoporus among third and fourth embodiment of the present invention is vacuum, should have to vacuumize used hole 10.Hole 10 can be at housing 11 or/and shell body 1 or/and on positioning sleeve 2 or/and down on the positioning sleeve 5.Hole 10 can be axial, also can be radially, exhausts after the vacuum hole 10 sealings are got final product; Simultaneously, last positioning sleeve 2, following positioning sleeve 5 will be carried out sealing with housing 11, when shell body 1 is fixedlyed connected, can adopt rubber seal or other sealing means.
Fifth embodiment of the invention (referring to accompanying drawing 7), fixedly connected with last positioning sleeve 2 in the upper end of housing 11, and fixedly connected with following positioning sleeve 5 in the lower end, and housing 11 cylindricals are less than the cylindrical of last positioning sleeve 2, following positioning sleeve 5; The last positioning sleeve 2 and the following positioning sleeve 5 of fixedlying connected with housing 11 are fixedly mounted on shell body 1 middle part, between the cylindrical of housing 11 and shell body 1 endoporus axial fluid course 7 are arranged; There is liquid opening 8 that bore of stator is communicated with axial fluid course 7 on last positioning sleeve 2 and the following positioning sleeve 5.
Sixth embodiment of the invention (referring to accompanying drawing 8), housing 11 is installed in the shell body 1, and the upper/lower terminal of housing 11 is fixedlyed connected with shell body 1, adopts usually to be threaded or welding manner.Between housing 11 middle part cylindricals and shell body 1 endoporus annular space 13 is arranged; There is liquid opening 8 that bore of stator is communicated with axial fluid course 7 on the housing 11.
Liquid opening 8 among the present invention the 5th, six embodiment can be axial, also can be radially.During drillng operation, mud liquid can pass through liquid opening 8 successively, axially fluid course 7, liquid opening 8 flow from top to bottom, make stator effectively be cooled off.
The foregoing description all can realize reducing the purpose of stratum high-temperature to the influence of stator rubber lining, improves the useful life of helicoid hydraulic motor in high-temperature stratum.
In order to guarantee that double-layer shell screw rod drilling tool motor stator of the present invention at high temperature during construction operation, reduces the adverse effect of formation temperature to rubber bushing, can be at the inside and outside surface spraying coating 9 of stator case 11 outer surfaces, shell body 1; The coating 9 multiselects material of good heat-insulation effect, as: composite aluminium-magnesium-silicate insulating moulding coating, rare earth thermal insulation coatings, application type composition silicate insulating moulding coating or the like; The thickness of coating 9 is 0.05～2mm, and effect was relatively good when coating 9 thickness were 0.2～1mm usually.
Double-layer shell screw rod drilling tool motor stator of the present invention, stator case 11 be usually with last positioning sleeve 2, the endoporus of positioning sleeve 5 are fixedlyed connected down, connected modes such as employing screw thread, alignment pin, key (spline, flat key), welding all can, also can adopt the eccentric shaft mode; In the endoporus of last positioning sleeve 2 upper ends, following positioning sleeve 5 lower ends inner convex platform 6 can be arranged, with housing 11 axial restraints.Last positioning sleeve 2, housing 11, down positioning sleeve 5 fixedly connected after, be installed in again between the connecting thread 3 of shell body 1 endoporus upper/lower terminal; Can adopt modes such as being threaded, selling connection, key connection, welding fixedly connected, adopt wherein a kind of or its combination all can.
It should be noted that the foregoing description is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiments and not break away from the scope of claims.
Claims (12)
1. double-layer shell screw rod drilling tool motor stator, stator comprises housing and rubber bushing, rubber bushing is bonded in the housing identical with its outer contour shape, it is characterized in that: fixedly connected with last positioning sleeve (2) in the upper end of described housing (11), fixedly connected with following positioning sleeve (5) in the lower end, housing (11) cylindrical is less than the cylindrical of last positioning sleeve (2), following positioning sleeve (5); Last positioning sleeve (2) of fixedlying connected with housing (11) and following positioning sleeve (5) are fixedly mounted on shell body (1) middle part, between the cylindrical of housing (11) and shell body (1) endoporus annular space (13) are arranged.
2. double-layer shell screw rod drilling tool motor stator, stator comprises housing and rubber bushing, rubber bushing is bonded in the housing identical with its outer contour shape, it is characterized in that: described housing (11) is installed in the shell body (1), the upper/lower terminal of housing (11) is fixedlyed connected with shell body (1), between housing (11) middle part cylindrical and shell body (1) endoporus annular space (13) is arranged.
3. according to claim 1,2 arbitrary described double-layer shell screw rod drilling tool motor stators, it is characterized in that: thermal insulating filling (4) is installed in the described annular space (13).
4. according to the described double-layer shell screw rod drilling tool motor stator of claim 3, it is characterized in that: described thermal insulating filling (4) for polystyrene or/and aeroge or/and resin or/and super glass wool or/and phenolic foam or/and high silica wool or/and liquid.
5. according to claim 1,2 arbitrary described double-layer shell screw rod drilling tool motor stators, it is characterized in that: described annular space (13) is a seal cavity, is vacuum or air or other gas in the annular space (13).
6. according to the described double-layer shell screw rod drilling tool motor stator of claim 5, it is characterized in that: described annular space (13) when the vacuum, housing (11) or/and shell body (1) or/and go up positioning sleeve (2) or/and have on the positioning sleeve (5) down and vacuumize used hole (10).
7. double-layer shell screw rod drilling tool motor stator, stator comprises housing and rubber bushing, rubber bushing is bonded in the housing identical with its outer contour shape, it is characterized in that: fixedly connected with last positioning sleeve (2) in the upper end of described housing (11), fixedly connected with following positioning sleeve (5) in the lower end, housing (11) cylindrical is less than the cylindrical of last positioning sleeve (2), following positioning sleeve (5); Last positioning sleeve (2) of fixedlying connected with housing (11) and following positioning sleeve (5) are fixedly mounted on shell body (1) middle part, between the cylindrical of housing (11) and shell body (1) endoporus axial fluid course (7) are arranged; There is liquid opening (8) that bore of stator is communicated with axial fluid course (7) on last positioning sleeve (2) and the following positioning sleeve (5).
8. double-layer shell screw rod drilling tool motor stator, stator comprises housing and rubber bushing, rubber bushing is bonded in the housing identical with its outer contour shape, it is characterized in that: described housing (11) is installed in the shell body (1), the upper/lower terminal of housing (11) is fixedlyed connected with shell body (1), between housing (11) middle part cylindrical and shell body (1) endoporus annular space (13) is arranged; There is liquid opening (8) that bore of stator is communicated with axial fluid course (7) on the housing (11).
9. according to claim 1,2,7,8 arbitrary described double-layer shell screw rod drilling tool motor stators, it is characterized in that: described housing (11) outer surface has coating (9); Described shell body (1) bore area has coating (9); Described shell body (1) outer round surface has coating (9).
10. according to the described double-layer shell screw rod drilling tool motor stator of claim 9, it is characterized in that: the material of described coating (9) is composite aluminium-magnesium-silicate insulating moulding coating, rare earth thermal insulation coatings, application type composition silicate insulating moulding coating.
11. according to the described double-layer shell screw rod drilling tool motor stator of claim 10, it is characterized in that: the thickness of described coating (9) is 0.05～2mm.
12. according to claim 1,2,7,8 arbitrary described double-layer shell screw rod drilling tool motor stators, it is characterized in that: there is the screw thread (3) that is connected with the helicoid hydraulic motor miscellaneous part upper end, the lower end of described shell body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228132 CN101882818B (en) | 2010-07-14 | 2010-07-14 | Double-layer shell screw rod drilling tool motor stator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010228132 CN101882818B (en) | 2010-07-14 | 2010-07-14 | Double-layer shell screw rod drilling tool motor stator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101882818A true CN101882818A (en) | 2010-11-10 |
| CN101882818B CN101882818B (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010228132 Expired - Fee Related CN101882818B (en) | 2010-07-14 | 2010-07-14 | Double-layer shell screw rod drilling tool motor stator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089241A (en) * | 2011-11-07 | 2013-05-08 | 航天特种材料及工艺技术研究所 | Heat insulation and preservation device |
| CN104734445A (en) * | 2013-12-18 | 2015-06-24 | 西门子公司 | Stator Insulation For Cold Magnets |
| 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 |
| CN112865346A (en) * | 2021-01-20 | 2021-05-28 | 深圳市康弘环保技术有限公司 | AC motor capable of reducing electromagnetic sound during operation |
| US11476735B2 (en) * | 2019-05-16 | 2022-10-18 | Makita Corporation | Electric work machine |
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2010
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089241A (en) * | 2011-11-07 | 2013-05-08 | 航天特种材料及工艺技术研究所 | Heat insulation and preservation device |
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| CN104734445A (en) * | 2013-12-18 | 2015-06-24 | 西门子公司 | Stator Insulation For Cold Magnets |
| 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 |
| US11476735B2 (en) * | 2019-05-16 | 2022-10-18 | Makita Corporation | Electric work machine |
| CN112865346A (en) * | 2021-01-20 | 2021-05-28 | 深圳市康弘环保技术有限公司 | AC motor capable of reducing electromagnetic sound during operation |
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| Publication number | Publication date |
|---|---|
| CN101882818B (en) | 2013-02-20 |
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