CN108448831A - A kind of generator stator end overall stiffness reinforcement structure construction method - Google Patents
A kind of generator stator end overall stiffness reinforcement structure construction method Download PDFInfo
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- CN108448831A CN108448831A CN201810228612.4A CN201810228612A CN108448831A CN 108448831 A CN108448831 A CN 108448831A CN 201810228612 A CN201810228612 A CN 201810228612A CN 108448831 A CN108448831 A CN 108448831A
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- insulation
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/0056—Manufacturing winding connections
- H02K15/0062—Manufacturing the terminal arrangement per se; Connecting the terminals to an external circuit
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Abstract
The object of the present invention is to provide a kind of generator stator end overall stiffness reinforcement structure construction methods.The whole circle of coil knuckle is tightened by technique bandage, glass filament bundle reinforcing ring is wound along insulation booth outer diameter circle whole to insulation booth, along generator axial direction wedging outer ring enemy insulation voussoir, and the binding of the glass filament bundle using bath temperature epoxy resinoid bond, in addition along generator axial direction wedging inner ring enemy insulation voussoir, and it insulate in inner ring enemy and matches the liner terylene felt of pad bath temperature epoxy resinoid bond between voussoir and insulation booth between bare glass tow binding structure, and bare glass tow binding structure binding between inner ring enemy insulation voussoir and insulation booth is cured, reach at stator end insulation booth, i.e. stator winding nose becomes the rigid annular structure of an entirety, Generator Stator Winding Ends overall stiffness is set to be much larger than original structure, promote Generator Stator Winding Ends entirety intrinsic frequency.
Description
Technical field：
The present invention relates to a kind of generator stator end overall stiffness reinforcement structure construction methods.
Background technology：
Turbine generator stator end mode and the intrinsic frequency of lead have larger impact to the safe operation of generator, frequency
Rate is that two pole generators of 50Hz in the process of running will be by ellipse 100Hz electromagnetic forces, if stator end is oval
Type Modal frequency be equal or close to 100Hz, and respond it is bigger, end is possible to resonate, to generation compared with
Big vibration, eventually leads to that entire winding overhang is loose, and bar mechanical fatigue influences the normal operation of unit；Therefore, for sound
Answer bigger stator end entirety ellipse intrinsic frequency that should avoid 100Hz as possible, stator end assembles elaborate, at present
It is mainly had been manually done by manpower, there are certain uncertain factors for end intrinsic frequency, in addition, since end is conformal and binding material
Material is also affected by the ambient temperature, and final end entirety intrinsic frequency is caused to there is a possibility that off-design value, generator
During power-plant operation, end region temperature environment changes, and end is acted on by various exciting forces in addition, causes end whole
Intrinsic frequency changes, and during generator maintenance, often finds the former stator end body vibration mode met the requirements
There is being unsatisfactory for desired intrinsic frequency, according to national standards and State Power Corporation's countermeasure, to be unsatisfactory for requiring
End Integral modes intrinsic frequency need to be handled；Only stator winding end portion vibration mode is being discussed in previous article mostly
Analysis and test method, or only indicate the processing direction of the ellipse intrinsic frequency to being unsatisfactory for requiring, not to not conforming to
The change of the winding Modal frequency of lattice proposes specific method, and common practices in production practice is increased in winding overhang
One circle or multi-turn binding structure, but often produce little effect；
To achieve the effect that make generator stator end overall stiffness to reinforce, it is proposed that new stator end overall stiffness adds
Strong structure, stator end overall stiffness reinforcement structure are implemented in the structure for be completed assembly, it is necessary to be proposed by the present invention
Method construction reinforcement structure and generator original structure can be made to form close-coupled, it is cyclic annular to form firm integral rigidity
Structure makes stator winding end overall stiffness be much larger than original structure, integrally solid to which Generator Stator Winding Ends be substantially improved
There is frequency, otherwise will make to generate gap between stator end overall stiffness reinforcement structure and generator original structure, it is whole to reduce structure
Property, frequency upgrading effect is not achieved, it is also possible to be formed and loosen abrasion hidden danger.
Invention content：The object of the present invention is to provide a kind of generator stator end overall stiffness reinforcement structure construction parties
The whole circle of coil knuckle is tightened by technique bandage, glass filament bundle reinforcing ring is wound along insulation booth outer diameter circle whole to insulation booth by method,
Outer ring enemy insulation voussoir, and tying up using the glass filament bundle of bath temperature epoxy resinoid bond are wedged along generator axial direction
It pricks, in addition along generator axial direction wedging inner ring enemy insulation voussoir, and in inner ring enemy insulation voussoir and insulation booth original glass
Terylene felt with pad bath temperature epoxy resinoid bond between glass tow binding structure, and inner ring enemy is insulated voussoir and insulation booth
The binding of bare glass tow binding structure cures, and reaches at stator end insulation booth, i.e. stator end cantilever distalmost end entirety wedge
Tight cured purpose, finally makes to form firm integral rigidity cyclic structure at stator end insulation booth, makes stator winding end
Overall stiffness makes generator unit stator much larger than original structure to which Generator Stator Winding Ends entirety intrinsic frequency be substantially improved
The underproof ellipse intrinsic frequency in end reaches Eligibility requirements, ensures that generator service life requires and generator operation is pacified
Entirely.
The technical scheme is that：A kind of generator stator end overall stiffness reinforcement structure construction method, by following
Step carries out：
1) step is prepared in advance：Between outer ring enemy insulation voussoir and inner ring enemy insulate voussoir by being designed between adjacent insulation booth
The unilateral thinned 2mm designs processing of gap, outer ring enemy insulation voussoir and inner ring enemy insulation voussoir centre trepanning, the outer ring of 3mm thickness
Conformal terylene felt, the conformal terylene felt of inner ring and liner terylene felt bath temperature epoxy resinoid bond, glass filament bundle bath Wen Huan
Oxygen resinoid bond；
2) insulation booth external diameter glass tow reinforcing ring work progress：With technique bandage along insulation booth outer diameter direction by bar nose
It holds whole circle to tighten, is wound at insulation booth outer diameter with the whole circle of the glass filament bundle of multiply bath temperature epoxy resinoid bond, forms glass
Glass tow reinforcing ring ensures that glass filament bundle reinforcing ring is no less than 100mm with insulation booth contact width, and thickness is no less than 10mm, and
Ensure that glass filament bundle reinforcing ring is in the centre position of insulation booth along generator axial direction；
3) outer ring enemy insulation voussoir binds work progress：After glass filament bundle reinforcing ring is fully cured, removes technique and tie up
Band wedges outer ring enemy insulation voussoir, outer ring enemy insulation voussoir along generator axial direction between two neighboring insulation booth
With outer ring conformal terylene felt of the insulation booth contact surface with pad 3mm thickness bath temperature epoxy resinoid bonds, ensure the conformal terylene in outer ring
Felt decrement is no less than 50%, later use bath temperature epoxy resinoid bond glass filament bundle by outer ring enemy insulate voussoir and
The conformal terylene felt in outer ring is tightened with the glass filament bundle reinforcing ring at cured insulation booth outer diameter, forms outer ring binding structure；
4) inner ring enemy insulation voussoir binds work progress：It, will be exhausted before outer ring enemy insulate the solidification of voussoir binding structure
The inner ring enemy of edge box inner radius insulate voussoir between generator axial direction wedges two neighboring insulation booth, and inner ring is correct absolutely
The conformal terylene felt of inner ring with pad 3mm thickness bath temperature epoxy resinoid bonds between edge voussoir and insulation booth contact surface, ensures inner ring
Conformal terylene felt decrement is no less than 50%, and inner ring enemy is insulated between voussoir and insulation booth original binding structure with pad 3mm thickness baths
The liner terylene felt of temperature epoxy resinoid bond uses the glass filament bundle of bath temperature epoxy resinoid bond that inner ring is correct absolutely later
Former binding structure between the conformal terylene felt of edge voussoir, inner ring and liner terylene felt and insulation booth tightens, and forms inner ring binding knot
Structure.
Technique effect：Generator stator end structure is cantilever beam structure, and nose insulation booth is in cantilever beam distalmost end, in advance
The technique bandage tightening coil knuckle whole glass filament bundle for enclosing winding bath temperature epoxy resinoid bond again is first used, waits for that glass filament bundle is solid
It removes technique bandage after change again, is equal to along exhausted after the glass filament bundle solidification of bath temperature epoxy resinoid bond at insulation booth outer diameter
Edge box outer diameter increases one of tightening ring, and generator end entirety intrinsic frequency is promoted；Reinforcing ring is in close contact with insulation booth, is reached
To the effect of banding insulation booth, after technique bandage is removed, end bar elastic force is released, at generator stator end insulation booth
Whole coil structures globality is stronger, while reinforcing ring plays the effect of constraint coil knuckle, avoids insulating in subsequent inner ring enemy
Voussoir and outer ring enemy, which are insulated during voussoir wedges each insulation booth, causes coil knuckle integrally to dissipate deformation, if do not taken in advance
Insulation booth measure is tightened with technique bandage, glass filament bundle is only wound around at insulation booth outer diameter, though make at stator end insulation booth
Entirety is formed, but glass filament bundle has no tightening effect to insulation booth, globality is not strong at stator end insulation booth, reinforcing ring solidification
The voussoir that insulate of outer ring enemy at outer diameter is wedged between each insulation booth and bound and will make at insulation booth outer diameter circumferencial direction once again again afterwards
It tightens, whole coil structures globality is reinforced again at generator stator end insulation booth, and rigidity is promoted at stator end insulation booth；Absolutely
Edge box inner radius wedges inner ring enemy insulation voussoir, and insulation booth inner radius is made to tighten, while outer along the extruding of insulation booth internal diameter direction
The correct insulation voussoir of circle, is equal at insulation booth internal-and external diameter and increases one of tightening ring respectively, form the close ring of twice
Shape structure ultimately forms the end construction of high rigidity；With the glass filament bundle of bath temperature epoxy resinoid bond to inner ring enemy
Insulate voussoir and outer ring enemy is insulated voussoir plus strapped fixed, further enhances the globality of stator winding end structure, and
Abrasion and landing of the stator end entirety reinforcement structure in generator operation are prevented, through practical proof, according to said method
After construction, stator winding end entirety intrinsic frequency promotes 20Hz or more.
Description of the drawings：
Fig. 1 glass filament bundle reinforcing rings construction schematic diagram.
The outer rings Fig. 2 enemy insulation voussoir construction schematic diagram.
The outer rings Fig. 3 binding structure completion schematic diagram.
Fig. 4 inner ring enemies insulation voussoir construction schematic diagram.
Fig. 5 completes schematic diagram by present invention construction.
Specific implementation mode：
The present invention be directed to the construction method that generator stator end overall stiffness reinforcement structure proposes, stator end is whole
Rigidity reinforcement structure is mainly characterized by：The outside winding glass filament bundle reinforcing ring 1 of insulation booth 6, between adjacent insulation booth 6
Lateral gap setting outer ring enemy, which is insulated, to be set between voussoir 2, each insulation booth between outer ring enemy insulation voussoir 2 and insulation booth contact surface
Set the conformal terylene felt 7 in outer ring, the outer ring enemy conformal terylene felt of voussoir 2 and outer ring 7 that insulate passes through outer ring binding structure 11 and glass
Tow reinforcing ring 1 couples；Medial gap setting inner ring enemy between adjacent insulation booth 6 is insulated voussoir 3, between each insulation booth
Inner ring enemy, which is insulated, is arranged the conformal terylene felt 9 of inner ring between voussoir 3 and insulation booth contact surface, inner ring enemy insulation voussoir 3 and insulation
Setting liner terylene felt 10 between the former binding structure 5 of box 6, inner ring enemy insulation voussoir 3, the conformal terylene felt 9 of inner ring and liner are washed
Synthetic fibre felt 10 is coupled by the former binding structure 5 between inner ring binding structure 12 and insulation booth 6；Stator end overall stiffness reinforcement structure
It is to implement in the structure for be completed assembly, it is necessary to can make generator stator end by method proposed by the present invention construction
Overall stiffness reinforcement structure forms close-coupled with generator original structure, and firm entirety is formed in stator winding end nose
Stiffening ring assembling structure makes stator winding end overall stiffness be much larger than original structure, to which generator unit stator winding terminal be substantially improved
Otherwise portion's entirety intrinsic frequency will make to generate gap between stator end overall stiffness reinforcement structure and generator original structure, reduce
Frequency upgrading effect is not achieved in structural integrity, it is also possible to be formed and loosen abrasion hidden danger.
Generator stator end overall stiffness reinforcement structure construction method carries out according to the following steps：
Prepare step in advance：Outer ring enemy insulation voussoir 2 and inner ring enemy insulation voussoir 3 are set as between two adjacent insulation booths 6
Count the unilateral thinned 2mm designs processing in gap, i.e. the size ratio two-phase of outer ring enemy insulation voussoir 2 and inner ring enemy insulation voussoir 3
The unilateral small 2mm in the gap of adjacent insulation booth, for filling the conformal terylene felt 7 in outer ring and the conformal terylene felt 9 of inner ring, outer ring enemy insulation
Circular hole is opened among voussoir 2 and inner ring enemy insulation voussoir 3, to mitigate outer ring enemy insulation voussoir 2 and inner ring enemy insulation voussoir 3
Weight, the conformal terylene felt 7 in 3mm thickness outer ring, the conformal terylene felt 9 of inner ring and liner terylene 10 bath temperature epoxies of felt it is resin-bonded
Agent, 8 bath temperature epoxy resinoid bond of glass filament bundle；
1 work progress of insulation booth external diameter glass tow reinforcing ring：As shown in Figure 1, with technique bandage 4 along 6 outer diameter of insulation booth
The whole circle of coil knuckle is tightened in direction, i.e., is wound in coil knuckle with the whole circle of technique bandage, technique bandage is tightened later, after tightening
Coil knuckle form the elastic force that expands outwardly；It is wound in the whole circle of the glass filament bundle 8 of multiply bath temperature epoxy resinoid bond
At 6 outer diameter of insulation booth, glass filament bundle reinforcing ring 1 is formed, ensures that glass filament bundle reinforcing ring 1 is no less than with insulation booth contact width
100mm, thickness are no less than 10mm, and ensure that glass filament bundle reinforcing ring 1 is in 6 interposition of insulation booth along generator axial direction
It sets, glass filament bundle reinforcing ring 1 is in close contact with insulation booth 6, achievees the effect that stirrup insulation booth 6, while glass filament bundle reinforcing ring
Setting avoid that follow-up outer ring enemy insulate voussoir 2 and inner ring enemy is insulated during voussoir 3 wedges between adjacent insulation booth 6
The coil knuckle of formation integrally dissipates deformation, and 6 measure of insulation booth, bath temperature epoxy are tightened with technique bandage 4 in advance if do not taken
The glass filament bundle 8 of resinoid bond is only wound around at 6 outer diameter of insulation booth, though make to form entirety at stator end insulation booth 6,
The glass filament bundle 8 of bath temperature epoxy resinoid bond has no tightening to insulation booth 6 and acts on, globality at stator end insulation booth 6
It is not strong.
Outer ring enemy insulation voussoir 2 binds work progress：As shown in Fig. 2, after glass filament bundle reinforcing ring 1 is fully cured,
Technique bandage 4 is removed, after technique bandage 4 is removed, end bar elastic force is released, but by the beam of glass filament bundle reinforcing ring 1
It ties up, insulation booth is in close contact with glass filament bundle reinforcing ring 1, at this point, generator end is made in cured glass filament bundle reinforcing ring
Under, globality enhancing；Outer ring enemy insulation voussoir 2 is wedged between two neighboring insulation booth 6 along generator axial direction, outside
The correct insulation voussoir 2 of circle and outer ring conformal terylene felt 7 of 6 contact surface of insulation booth with pad 3mm thickness bath temperature epoxy resinoid bonds,
Ensure the conformal terylene felt in outer ring 7 along generator axial direction without departing from insulation booth both sides of the edge, decrement is no less than 50%, outer ring
Conformal terylene felt 7 makes the contact that outer ring enemy is insulated between voussoir 2 and insulation booth 6 be become face from point or line contact and be contacted,
It is close reliable that 50% decrement can ensure that outer ring enemy insulation voussoir 2 is contacted with insulation booth 6, and does not cause bath temperature epoxy
The conformal terylene felt in the outer ring of resinoid bond 7 overflow excessive epoxy adhesive and cause it is fixed loosely, above-mentioned operation is complete
After work, as shown in figure 3, outer ring enemy insulation voussoir 2 and outer ring are fitted with the glass filament bundle 8 of bath temperature epoxy resinoid bond
Shape terylene felt 7 is tightened with the glass filament bundle reinforcing ring 1 at cured insulation booth outer diameter, the binding of glass filament bundle 8 no less than 20 circles,
And ensure to bind thickness uniformity, form outer ring binding structure 11, whole coil structures are whole at generator stator end insulation booth 6
Property reinforce again, at stator end insulation booth rigidity promoted；
Inner ring enemy insulation voussoir 3 binds work progress：As shown in figure 4, the outer ring enemy insulation wedge at insulation booth outer diameter
It is before the solidification of 2 binding structure of block, the inner ring enemy insulation voussoir 3 of insulation booth inner radius is adjacent absolutely along the wedging of generator axial direction
Between edge box 6, inner ring enemy is insulated between voussoir 3 and 6 contact surface of insulation booth with the interior of pad 3mm thickness bath temperature epoxy resinoid bonds
It encloses conformal terylene felt 9, ensures the conformal terylene felt of inner ring 9 along generator axial direction without departing from insulation booth both sides of the edge, decrement
No less than 50%, the conformal terylene felt 9 of inner ring is so that the contact that inner ring enemy is insulated between voussoir 3 and insulation booth 6 is connect by point or line
Thixotroping contacts for face, and 50% decrement can ensure that inner ring enemy insulation voussoir 3 contacts closely reliably, and not with insulation booth 6
Cause the conformal terylene felt of the inner ring of bath temperature epoxy resinoid bond 9 to overflow excessive epoxy adhesive and cause it is fixed not
Jail, the liner with pad 3mm thickness bath temperature epoxy resinoid bonds between inner ring enemy insulation voussoir 3 and the former binding structure 5 of insulation booth 6
Terylene felt 10 ensures to pad terylene felt 10 along generator axial direction that decrement is no less than without departing from insulation booth both sides of the edge
30%, liner terylene 10 terylene felts more conformal than inner ring of felt are thick very much, therefore decrement chooses 30%；After above-mentioned operation completion,
As shown in figure 5, with the glass filament bundle 8 of bath temperature epoxy resinoid bond by inner ring enemy insulate voussoir 3, inner ring terylene felt 9 with
And the former binding structure 5 between liner terylene felt 10 and insulation booth 6 tightens, the binding of glass filament bundle 8 no less than 20 circles, and ensure to bind
Thickness uniformity, forms inner ring binding structure 12, and 6 inner radius of insulation booth wedges inner ring enemy insulation voussoir 3, makes insulation booth 6
Inner radius is tightened, while squeezing outer ring enemy insulation voussoir 2 along insulation booth internal diameter direction, is equal at 6 internal-and external diameter of insulation booth
One of tightening ring has been increased separately, the close cyclic structure of twice has been formd, ultimately forms the end construction of high rigidity；With leaching
The glass filament bundle 8 of room temperature epoxy adhesive insulate to inner ring enemy insulation voussoir 3 and outer ring enemy voussoir 2 plus strapped
It is fixed, the globality of stator winding end structure is further enhanced, and stator end overall stiffness reinforcement structure is prevented to send out
Abrasion in motor operation course and landing.
Claims (1)
1. a kind of generator stator end overall stiffness reinforcement structure construction method, it is characterized in that：Include the following steps：
1) step is prepared in advance：Outer ring enemy insulation voussoir (2) and inner ring enemy insulate voussoir (3) by between adjacent insulation booth (6)
The unilateral thinned 2mm designs processing of design gaps, outer ring enemy insulation voussoir (2) and the intermediate trepanning of inner ring enemy insulation voussoir (3),
The conformal terylene felt (7) in outer ring of 3mm thickness, the conformal terylene felt (9) of inner ring and liner terylene felt (10) bath temperature epoxy resin are viscous
Tie agent, glass filament bundle (8) bath temperature epoxy resinoid bond；
2) insulation booth external diameter glass tow reinforcing ring (1) work progress：It will along insulation booth (6) outer diameter direction with technique bandage (4)
The whole circle tightening of coil knuckle is wound in insulation booth (6) outside with the whole circle of the glass filament bundle (8) of multiply bath temperature epoxy resinoid bond
At diameter, glass filament bundle reinforcing ring (1) is formed, ensures that glass filament bundle reinforcing ring (1) is no less than with insulation booth (6) contact width
100mm, thickness are no less than 10mm, and ensure that glass filament bundle reinforcing ring (1) is in along generator axial direction in insulation booth (6)
Between position；
3) outer ring enemy insulation voussoir 2 binds work progress：After glass filament bundle reinforcing ring (1) is fully cured, removes technique and tie up
Band (4), outer ring enemy insulation voussoir (2) is wedged along generator axial direction between two neighboring insulation booth (6), and outer ring is correct
The voussoir (2) that insulate matches the conformal terylene felt (7) in outer ring of pad 3mm thickness bath temperature epoxy resinoid bonds with insulation booth (6) contact surface,
Ensure that conformal terylene felt (7) decrement in outer ring is no less than 50%, uses the glass filament bundle (8) of bath temperature epoxy resinoid bond later
Outer ring enemy insulation voussoir (2) and the conformal terylene felt (7) in outer ring are added with the glass filament bundle at cured insulation booth outer diameter
Strong ring (1) tightens, and forms outer ring binding structure (11)；
4) inner ring enemy insulation voussoir (3) binds work progress：It, will before outer ring enemy insulate voussoir binding structure (11) solidification
The inner ring enemy of insulation booth inner radius insulate voussoir (3) between generator axial direction wedges two neighboring insulation booth (6), interior
The inner ring with pad 3mm thickness bath temperature epoxy resinoid bonds is conformal between correct insulation voussoir (3) and insulation booth (6) contact surface of circle washs
Synthetic fibre felt (9) ensures that conformal terylene felt (9) decrement of inner ring is no less than 50%, and inner ring enemy is insulated voussoir (3) and insulation booth (6)
Liner terylene felt (10) with pad 3mm thickness bath temperature epoxy resinoid bonds between former binding structure (5), uses bath temperature epoxy later
The glass filament bundle (8) of resinoid bond is by inner ring enemy insulation voussoir (3), the conformal terylene felt (9) of inner ring and pads terylene felt
(10) the former binding structure (5) between insulation booth (6) tightens, and forms inner ring binding structure (12).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228612.4A CN108448831B (en) | 2018-03-20 | 2018-03-20 | Construction method for integral rigidity reinforcing structure of end part of generator stator |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810228612.4A CN108448831B (en) | 2018-03-20 | 2018-03-20 | Construction method for integral rigidity reinforcing structure of end part of generator stator |
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| Publication Number | Publication Date |
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| CN108448831A true CN108448831A (en) | 2018-08-24 |
| CN108448831B CN108448831B (en) | 2020-02-25 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900025A (en) * | 2018-09-17 | 2018-11-27 | 哈尔滨电机厂有限责任公司 | A kind of composite construction cage type stator end rigidity enhancing structure |
| CN109038909A (en) * | 2018-09-17 | 2018-12-18 | 哈尔滨电机厂有限责任公司 | A kind of variable rigidity composite construction cage type stator end enhancing structure |
| CN109067050A (en) * | 2018-09-17 | 2018-12-21 | 哈尔滨电机厂有限责任公司 | A kind of variable rigidity combination ripple spring washer form stator end reinforcement structure |
| CN109067051A (en) * | 2018-09-17 | 2018-12-21 | 哈尔滨电机厂有限责任公司 | A kind of combination ripple spring washer form stator end reinforcement structure |
| CN112968576A (en) * | 2021-04-13 | 2021-06-15 | 哈尔滨电机厂有限责任公司 | Turbine generator stator end nose end loosening treatment process method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009177943A (en) * | 2008-01-24 | 2009-08-06 | Mitsubishi Electric Corp | Stator of rotating electrical machine |
| CN101699727A (en) * | 2009-11-13 | 2010-04-28 | 湘潭电机股份有限公司 | Motor stator coil end part fixing method |
| CN205070645U (en) * | 2015-11-12 | 2016-03-02 | 东方电气集团东风电机有限公司 | Whole VPI insulation system of motor stator |
-
2018
- 2018-03-20 CN CN201810228612.4A patent/CN108448831B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009177943A (en) * | 2008-01-24 | 2009-08-06 | Mitsubishi Electric Corp | Stator of rotating electrical machine |
| CN101699727A (en) * | 2009-11-13 | 2010-04-28 | 湘潭电机股份有限公司 | Motor stator coil end part fixing method |
| CN205070645U (en) * | 2015-11-12 | 2016-03-02 | 东方电气集团东风电机有限公司 | Whole VPI insulation system of motor stator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900025A (en) * | 2018-09-17 | 2018-11-27 | 哈尔滨电机厂有限责任公司 | A kind of composite construction cage type stator end rigidity enhancing structure |
| CN109038909A (en) * | 2018-09-17 | 2018-12-18 | 哈尔滨电机厂有限责任公司 | A kind of variable rigidity composite construction cage type stator end enhancing structure |
| CN109067050A (en) * | 2018-09-17 | 2018-12-21 | 哈尔滨电机厂有限责任公司 | A kind of variable rigidity combination ripple spring washer form stator end reinforcement structure |
| CN109067051A (en) * | 2018-09-17 | 2018-12-21 | 哈尔滨电机厂有限责任公司 | A kind of combination ripple spring washer form stator end reinforcement structure |
| CN109038909B (en) * | 2018-09-17 | 2020-01-07 | 哈尔滨电机厂有限责任公司 | Rigidity-variable composite structure cage-shaped stator end reinforcing structure |
| CN112968576A (en) * | 2021-04-13 | 2021-06-15 | 哈尔滨电机厂有限责任公司 | Turbine generator stator end nose end loosening treatment process method |
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|---|---|
| CN108448831B (en) | 2020-02-25 |
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