CN101252300A - Stator winding end assembling process - Google Patents
Stator winding end assembling process Download PDFInfo
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- CN101252300A CN101252300A CNA2008100640962A CN200810064096A CN101252300A CN 101252300 A CN101252300 A CN 101252300A CN A2008100640962 A CNA2008100640962 A CN A2008100640962A CN 200810064096 A CN200810064096 A CN 200810064096A CN 101252300 A CN101252300 A CN 101252300A
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- inner shield
- type tool
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Abstract
The invention relates to stator winding end assembly technique to assemble an outer plunger ring at the end of a stator. During the assembly of the windings of the stator, the alignment of the connection positions at the ends of the upper layer winding and the lower layer winding with the rectangular holes of the inner screens is critical; tapered outer plunger rings and outer screens are arranged at the outer sides of the windings at the end of the stator of an impulse generator; the inner screens are installed on the stator and epoxy filler gum is injected. The invention is capable of enabling the impulse generator to avoid such problems and is an improvement to normal generator stator assembly techniques. The end of the impulse generator stator with such structure has no temporary position for fixing the windings of the stator, and the end of the stator can be tamped through a tamping tool when the stator is laid down; the end of the stator is a whole body, thus satisfying the requirement in fixing the end of the stator of the impulse generator.
Description
Technical field: the present invention relates to a kind of stator winding end assembling process.
Technical background: surge generator is a kind of generator that large-scale switch is tested usefulness, and its operating state is different from common generator.Common generator unit stator short circuit is a kind of accident condition, and the short circuit of surge generator stator then is an operating state.In view of this working method, determined the machine made importance of surge generator stator winding end, so external shield copper conical ring is clamped stator winding end and filled the structure that glue is filled the space with epoxy in adopting.And common generator does not adopt outer trim ring, external shield, inner shield, what replace is that the insulating support that is contained on the trim ring has supported several round insulation retaining rings, and upper strata end coil, lower floor's end coil are fixed on support and the retaining ring by tying up rope or insulating press boards.
Summary of the invention: the stator winding end assembling process that the objective of the invention is to disclose a kind of installation accuracy height, good sealing effect.Technical scheme of the present invention is: a kind of stator winding end assembling process, one, stator end carries out the assembling of outer trim ring: after outer trim ring and copper external shield are first single-piece installation qualification, stator end is arrived in integral installation, after being installed to stator end, guarantee that the axle center of outer trim ring and external shield is consistent with the axle center of stator core;
Two, stator coil must guarantee that in assembling process the rectangular opening position of upper and lower layer line circle end link position and inner shield aligns, in the coil assembling process, use two kinds of pitch templets of levels respectively, adjust the end winding position by model, make the coil of this position can reach in the rectangular opening, and equate with each back gauge of rectangular opening, model adopts epoxy phenolic laminated glass fabric plate or two kinds of insulating material of laminated epoxy glass-cloth board, when the whole circle of model is installed by add the form adjustment end winding position of the filler strip that insulate in model groove medial surface and bottom surface;
Three, the stator end coil outside of surge generator is provided with outer trim ring of taper and external shield, during surge generator stator die mould, bowl-shape pressure-type tool is adopted in the end, be placed on the position of inner shield, by on the outer trim ring end face fixedly the joint hole of inner shield fix, carry out the die mould of end coil with this pressure-type tool, zigzag is made in the outer end of tinplate, lie in end winding with rope, the tinplate inner end is also made zigzag, lie in rope in the hole on the retainer ring instrument that is placed in the iron core, instantly behind the layer line circle assembling pressure-type tool, the stator end band pressure-type tool and is carried out heat treated, and behind upper coil assembling pressure-type tool, stator end also will be with pressure-type tool to carry out heat treated;
Four, stator carries out the inner shield installation: stator is erected install, the riding position of retainer ring instrument can adjust with the shape of tinplate, do to be fit to tying up rop exercise, sling with inner shield is flat, hang in the space of stator end, treat that inner shield hangs when putting in place soon, at leisure the tinplate rope is untied, the tinplate secter pat is extracted out from the top one by one, put in place to transferring inner shield again, the set bolt between tight all inner shields and outer trim ring;
When five, the perfusion epoxy is filled glue, from erect next stator inner shield end rectangular opening, inject, the glue that injects can fill up all slits of stator coil end, stator end is become one, will protect in winding space and other interstitial site of core ends simultaneously, it is careful about all slits of cotton jam-pack to need during protection.
In the stator of steam turbine generator manufacture process in the past, the position that stator inner coil and upper coil end least significant end often occur makes inner coil go wrong when being connected with upper coil to not positive phenomenon.Using pitch templet to carry out the assembling of stator end coil by the present invention, not only can make surge generator avoid this class problem, also is an improvement to conventional power generation usage machine stator assembly technology.Simultaneously, this structure of surge generator stator end, the position that in the assembling process of end, does not have temporary fixed end coil, by the present invention, can realize the die mould work of stator stator end under the situation of falling by pressure-type tool, make the new construction stator of this special generator, can realize that the die mould of end coil is fixed.Same principle has also realized the installation of inner shield by the present invention.Carry out the perfusion that epoxy is filled glue by the present invention again, make whole stator end become as a whole, realize the designing requirement that the surge generator stator end is fixing.
Description of drawings:
Fig. 1 surge generator stator structure front view
Fig. 2 surge generator stator end structure side view
Fig. 3 surge generator stator end structure partial zoomed-in view
Fig. 4 inner coil pitch templet scheme of installation
Fig. 5 inner coil pitch templet structural representation
Fig. 6 upper coil pitch templet scheme of installation
Fig. 7 upper coil pitch templet structural representation
Fig. 8 pressure-type tool front view
Fig. 9 pressure-type tool cutaway view
Figure 10 inner coil pressure-type tool use schematic diagram
Figure 11 upper coil pressure-type tool use schematic diagram
Figure 12 inner shield structural representation
Figure 13 inner shield structure cutaway view
Figure 14 inner shield installation process schematic diagram
Figure 15 pours into epoxy and fills glue process and protection schematic diagram
In the following drawings:
1. stator core 2. inner coils
3. upper coil 4. trim rings assembling
5. outer trim ring 6. external shields
7. inner shield 8. end epoxies are filled glue
9. pitch templet instrument 10. pressure-type tools
11. tinplate instrument 12. retainer ring instruments
13. the protection 14. perfusion epoxies when the perfusion epoxy is filled glue are filled the entry position of glue
By the structural representation of Fig. 1, Fig. 2, as can be seen: the stator end of surge generator is divided into upper coil 3, inner coil 2, and this two-layer coil is opposite in the end chamfer trend, and levels connects together endways, forms winding.The generator stator end coil fixedly be very important, especially surge generator stator end coil fixedly is more importantly.There is the outer trim ring 5 that has external shield 6 the stator end coil outside of surge generator, and there is inner shield 7 inboard.Inner shield 7 is closing on outer trim ring 5 end faces, and there is a groove position of inner shield 7 corresponding each coil end, and the end of coil is reached in the groove of inner shield 7, saves the space.Stator end is tightly clamped the stator end coil by inner shield 7 and external shield 6, injects epoxy to gap wherein again and fills glue 8, just stator end has been fixed into well integral body of an intensity after the curing.Surge generator stator end structure partial amplifies to be illustrated as Fig. 3:
By with Fig. 3 structural representation, the stator end structure of the stator end structure of surge generator and common generator has very big difference as can be seen.These the difference also determined technology innovation.Technical process of the present invention just is described below.
One, stator end will carry out the assembling of outer trim ring 5.After outer trim ring 5 was first single-piece installation qualification with copper external shield 6, stator end was arrived in integral installation.After being installed to stator end, guarantee that the axle center of outer trim ring 5 and external shield 6 is consistent with the axle center of stator core 1.
Two, this structural requirement stator coil of surge generator is in assembling process, the rectangular opening position that must guarantee inner coil 2 and upper coil 3 end link positions and inner shield 7 aligns, the inner coil 2 and the upper coil 3 that could guarantee this position like this can reach in the rectangular opening, and equate with each back gauge of rectangular opening.So, in the coil assembling process, use two kinds of pitch templets 9 of levels respectively, adjust the end winding position by model and meet the requirements.Model adopts epoxy phenolic laminated glass fabric plate or two kinds of insulating material of laminated epoxy glass-cloth board, can not damage coil like this, simultaneously model 9 whole circles are installed, during installation by add the form adjustment lower floor's end coil 2 and upper strata end coil 3 terminal positions of the filler strip that insulate in model groove medial surface and bottom surface.The installation of model 9 such as Fig. 4 and Fig. 6 signal, the model height of inner coil 2 and upper coil 3 is different, model such as Fig. 5 and Fig. 7 signal:
Three, lower floor's end coil 2 of surge generator and upper strata end coil 3 do not have outside insulating support, retaining ring, what replace it is outer trim ring 5 of taper and external shield 6, and lower floor's end coil 2 and upper strata end coil 3 just can not be the same with pressure plate tool or directly tie up to restrict with product and fix according to common generator during the stator die mould like this.During surge generator stator die mould, the end is with bowl-shape pressure-type tool 10, be placed on the position of inner shield 7, by on outer trim ring 5 end faces fixedly the joint hole of inner shield 7 fix, carry out the die mould of lower floor's end coil 2 and upper strata end coil 3 with this pressure-type tool 10.Simultaneously, this pressure-type tool 10 can be realized the shared cover die mould instrument 10 of lower floor's end coil 2 and upper strata end coil 3 die moulds by the structure at joint hole position plus-minus cushion block.Because stator fell and carries out during die mould, toothing is done in the outer end of tinplate 11, lies in inner coil 2 and upper coil 3 ends with rope, and tinplate 11 inner ends are also done toothing, lies in rope in the hole on the retainer ring instrument 12 that is placed in the iron core.Instantly behind layer line circle 2 assembling tinplates 11, the pressure-type tool 10, stator end will be with pressure-type tool 10, tinplate 11 to carry out heat treated, and all adaptive materials in end are cured.Equally, behind upper coil 3 assembling tinplates 11, pressure-type tool 10, stator end also will be with pressure-type tool 10, tinplate 11 to carry out heat treated, and all adaptive materials in end are cured.Pressure-type tool 10 is as Fig. 8 and Fig. 9 signal, the use of pressure-type tool 10 such as Figure 10 and Figure 11.
Four, stator carries out inner shield 7 installations, is stator to be erected install.Installing needs to make with polylith tinplate 11 before the inner shield 7 fan-shaped, synthesizes a taper-type dropper at last and is put under the inner shield.The outer end of tinplate 11 is cut into zigzag, lies on lower floor's end coil 2 and the upper strata end coil 3 with rope; The inner end of tinplate 11 also is cut into zigzag, is fixed in restricting on the retainer ring instrument 12 on the iron core.The riding position of retainer ring instrument 12 can adjust with the shape of tinplate 11, does to be fit to tying up rop exercise.In this case, inner shield 7 is sling, put down and hang, steadily hang in the space of stator end.Treat that inner shield 7 hangs when putting in place soon, at leisure tinplate 11 is tied up rope and untie, tinplate 11 is extracted out from the top one by one.At this moment, put in place to transferring inner shield 7 again.The set bolt of 5 of tight all inner shields 7 and outer trim rings.Inner shield 7 structures such as Figure 12 and Figure 13 signal, dress inner shield 7 processes such as Figure 14 illustrate that stator end such as Fig. 3 of installing inner shield 7 illustrate:
When five, the perfusion epoxy is filled glue 8, from erect next stator inner shield 7 end rectangular openings, inject.The glue 8 that injects can fill up in institute all slits of stator coil end, and stator end is become one, and reaches designing requirement.Will protect with other interstitial site in the lower floor's end coil 2 and upper strata end coil 3 gaps of core ends simultaneously, it is careful about all slits of protection cotton 13 jam-packs to need during protection.The perfusion epoxy is filled glue 8 and is protected 13 processes such as Figure 15 illustrates:
After stator end has poured into epoxy filling glue 8, just finished all working of stator end.
Claims (1)
1, a kind of stator winding end assembling process, it is characterized in that: (1), stator end carry out the assembling of outer trim ring: after outer trim ring and copper external shield are first single-piece installation qualification, stator end is arrived in integral installation, after being installed to stator end, guarantee that the axle center of outer trim ring and external shield is consistent with the axle center of stator core;
(2), stator coil must guarantee that in assembling process the rectangular opening position of upper and lower layer line circle end link position and inner shield aligns, in the coil assembling process, use two kinds of pitch templets of levels respectively, adjust the end winding position by model, make the coil of this position can reach in the rectangular opening, and equate with each back gauge of rectangular opening, model adopts epoxy phenolic laminated glass fabric plate or two kinds of insulating material of laminated epoxy glass-cloth board, when the whole circle of model is installed by add the form adjustment end winding position of the filler strip that insulate in model groove medial surface and bottom surface;
(3), the stator end coil outside of surge generator is provided with outer trim ring of taper and external shield, during surge generator stator die mould, bowl-shape pressure-type tool is adopted in the end, be placed on the position of inner shield, by on the outer trim ring end face fixedly the joint hole of inner shield fix, carry out the die mould of end coil with this pressure-type tool, zigzag is made in the outer end of tinplate, lie in end winding with rope, the tinplate inner end is also made zigzag, lie in rope in the hole on the retainer ring instrument that is placed in the iron core, instantly behind the layer line circle assembling pressure-type tool, the stator end band pressure-type tool and is carried out heat treated, and behind upper coil assembling pressure-type tool, stator end also will be with pressure-type tool to carry out heat treated;
(4), stator carries out the inner shield installation: stator is erected install, the riding position of retainer ring instrument can adjust with the shape of tinplate, do to be fit to tying up rop exercise, sling with inner shield is flat, hang in the space of stator end, treat that inner shield hangs when putting in place soon, at leisure the tinplate rope is untied, the tinplate secter pat is extracted out from the top one by one, put in place to transferring inner shield again, the set bolt between tight all inner shields and outer trim ring;
When (5), the perfusion epoxy is filled glue, from erect next stator inner shield end rectangular opening, inject, the glue that injects can fill up all slits of stator coil end, stator end is become one, will protect in winding space and other interstitial site of core ends simultaneously, it is careful about all slits of cotton jam-pack to need during protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100640962A CN101252300B (en) | 2008-03-12 | 2008-03-12 | Stator winding end assembling process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100640962A CN101252300B (en) | 2008-03-12 | 2008-03-12 | Stator winding end assembling process |
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| Publication Number | Publication Date |
|---|---|
| CN101252300A true CN101252300A (en) | 2008-08-27 |
| CN101252300B CN101252300B (en) | 2011-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100640962A Expired - Fee Related CN101252300B (en) | 2008-03-12 | 2008-03-12 | Stator winding end assembling process |
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| CN (1) | CN101252300B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764451A (en) * | 2009-12-25 | 2010-06-30 | 江门市瑞荣泵业有限公司 | Stator structure of submersible motor and manufacturing method thereof |
| CN102842992A (en) * | 2012-09-28 | 2012-12-26 | 北京交通大学 | Hollow internal cooling type electric shielding device on end part of turbine generator |
| CN103475163A (en) * | 2013-08-28 | 2013-12-25 | 哈尔滨电机厂有限责任公司 | Construction method of stator end structure of impact generator |
| CN103956868A (en) * | 2014-05-12 | 2014-07-30 | 哈尔滨电机厂有限责任公司 | Method for 1000 MW generator stator winding to get off assembly line |
| CN104218750A (en) * | 2014-09-25 | 2014-12-17 | 江苏南车电机有限公司 | 2MW wind turbine notch potting process |
| CN108802560A (en) * | 2018-07-16 | 2018-11-13 | 哈尔滨电机厂有限责任公司 | A kind of electric testing device of large turbo-type generator stator simulation winding |
-
2008
- 2008-03-12 CN CN2008100640962A patent/CN101252300B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101764451A (en) * | 2009-12-25 | 2010-06-30 | 江门市瑞荣泵业有限公司 | Stator structure of submersible motor and manufacturing method thereof |
| CN101764451B (en) * | 2009-12-25 | 2014-04-09 | 广东瑞荣泵业有限公司 | Manufacturing method of stator structure of submersible motor |
| CN102842992A (en) * | 2012-09-28 | 2012-12-26 | 北京交通大学 | Hollow internal cooling type electric shielding device on end part of turbine generator |
| CN102842992B (en) * | 2012-09-28 | 2014-09-10 | 北京交通大学 | Hollow internal cooling type electric shielding device on end part of turbine generator |
| CN103475163A (en) * | 2013-08-28 | 2013-12-25 | 哈尔滨电机厂有限责任公司 | Construction method of stator end structure of impact generator |
| CN103475163B (en) * | 2013-08-28 | 2016-08-10 | 哈尔滨电机厂有限责任公司 | Surge generator stator end construction method |
| CN103956868A (en) * | 2014-05-12 | 2014-07-30 | 哈尔滨电机厂有限责任公司 | Method for 1000 MW generator stator winding to get off assembly line |
| CN104218750A (en) * | 2014-09-25 | 2014-12-17 | 江苏南车电机有限公司 | 2MW wind turbine notch potting process |
| CN104218750B (en) * | 2014-09-25 | 2017-06-23 | 江苏中车电机有限公司 | A kind of 2MW wind-driven generators notch dosing technology |
| CN108802560A (en) * | 2018-07-16 | 2018-11-13 | 哈尔滨电机厂有限责任公司 | A kind of electric testing device of large turbo-type generator stator simulation winding |
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| Publication number | Publication date |
|---|---|
| CN101252300B (en) | 2011-06-01 |
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Granted publication date: 20110601 Termination date: 20170312 |
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