CN202172309U - Punching sheet of generator - Google Patents
Punching sheet of generator Download PDFInfo
- Publication number
- CN202172309U CN202172309U CN2011202124744U CN201120212474U CN202172309U CN 202172309 U CN202172309 U CN 202172309U CN 2011202124744 U CN2011202124744 U CN 2011202124744U CN 201120212474 U CN201120212474 U CN 201120212474U CN 202172309 U CN202172309 U CN 202172309U
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- China
- Prior art keywords
- generator
- stator
- punching
- casing
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A punching sheet of a generator belongs to generator structures and solves the problem that an existing generator is low in rotary shaft rigidity and limited in application. A stator and a rotor of the generator are respectively formed by laminating of a plurality of stator punching sheets and a plurality of rotor punching sheets. A casing is arranged outside the stator, the outer diameter of each stator punching sheet is 410mm, the inner diameter of each stator punching sheet is 286mm, the inner diameter of the casing is 432mm, the width of a unilateral ventilating duct from the outer diameter of the stators to the inner diameter of the casing is 11mm, and the diameter of a shaft hole of each rotor punching sheet is 80mm. The size structure of the punching sheet of the generator can greatly enhance the rigidity of a rotary shaft, improve dynamic balance amounts caused by deformation of the rotary shaft, reduce material cost of the generator without lengthening the length of an iron core, and simultaneously improve performance of the generator. The generator can be used as a marine generator. In addition, the diameter of the casing of the stator is unchangeable, and installation with a matching upper device cannot conflict.
Description
Technical field
The utility model relates to generator Structure, refers in particular to a kind of structure of generator punching.
Background technology
Model is that the generator of MP360-4P is a matured product at present; Referring to Fig. 1; The stator 11 of existing 360 support generators is overrided to form by many stator punchings, places the rotor 12 in the stator 11 to be overrided to form by many rotor punchings, and casing 13 places the outside of stator 11.Wherein, the external diameter of each stator punching, the external diameter L11 of the stator 11 after promptly laminating is 390.6mm; The internal diameter of each stator punching, the stator 11 internal diameter L15 after promptly laminating are 276mm; The internal diameter L13 of casing 13 is 432mm; Stator 11 external diameters are 20.7mm to the monolateral air duct width L12 of casing 13 internal diameters; The axis hole of rotor punching, the axis hole L14 of the rotor 12 after promptly laminating is 76.2mm.
Some problem below such size exists: the one, the rigidity of rotating shaft is lower, and the computing ballance correction that the rotating shaft distortion causes is bigger; Two is that 360 support high-power generators lack marine generator, and user's alternative is poor; Three is that 400 millimeters square punchings of 360 supports also have the potentiality about 10% to dig.
The utility model content
The purpose of the utility model is in order to solve the problem that prior art exists, to provide a kind of and can improve the rigidity of alternator shaft and the generator punching that enlarges the generator purposes.
The purpose of the utility model realizes through following technical scheme:
A kind of generator punching, the stator of said generator (21) is overrided to form by many stator punchings, places the rotor in the stator to be overrided to form by many rotor punchings, and casing places the outside of stator, wherein:
The external diameter of each stator punching is 410mm;
The internal diameter of each stator punching is 286mm;
The internal diameter of casing is 432mm;
Stator outer diameter is 11mm to the monolateral air duct width of casing internal diameter;
The shaft hole diameter of rotor punching is 80mm.
The beneficial effect of the utility model:
The dimensional structure of the generator punching of the utility model design can strengthen the rigidity of rotating shaft greatly; Improved the computing ballance correction that the rotating shaft distortion causes, core length needn't lengthen, and can reduce the material cost of generator; Improve generator performance simultaneously, can be used as marine generator.In addition, owing to adopt the punching structure of the utility model, its stator cage diameter is constant, therefore can not clash with supporting installation of going up equipment.
Be above-mentioned purpose, design feature and the effect that further specifies the utility model, below will combine accompanying drawing that the utility model is elaborated.
Description of drawings
The stator and rotor sructure figure that Fig. 1 is overrided to form for existing generator punching;
Fig. 2 is the stator and rotor sructure figure that the generator punching of the utility model is overrided to form.
Embodiment
Be elaborated below in conjunction with the accompanying drawing of embodiment embodiment to the utility model.
Referring to Fig. 2, the stator 21 in the utility model generator is overrided to form by many stator punchings, places the rotor 22 in the stator 21 to be overrided to form by many rotor punchings, and casing 23 places the outside of stator 21.Wherein, the external diameter of each stator punching, the external diameter L21 of the stator 21 after promptly laminating is amplified to 410mm from 390.6mm; The internal diameter of each stator punching, the stator 21 internal diameter L25 after promptly laminating are amplified to 286mm from 276mm; The internal diameter L23 of casing 23 is 432mm, and is identical with prior art; Stator 21 external diameters are reduced into 11mm to the monolateral air duct width L22 of casing 23 internal diameters from 20.7mm; The axis hole of rotor punching, the diameter of the axis hole L24 of the rotor 22 after promptly laminating is amplified to 80mm from 76.2mm.
The external diameter of said stator 21 amplifies, monolateral air duct reduced width, and diameter of stator bore amplifies; Such size is though the stator ventilation condition is not good originally, under the constant situation of fan; Stator windage one will increase blast greatly, thereby forces cooling air to walk some from the rotor ventilation road more.And because diameter of stator bore amplifies, the rotor ventilation area increases about 20% than original, and the rotor ventilation condition is better than originally.Rotor shaft hatch increases to 80mm to improve the rigidity of rotating shaft from 76.2mm, solves because the big problem of computing ballance correction that the rotating shaft distortion causes.With the punching of the utility model to 50HZ, 415V, the 104KW-4P generator has carried out electromagnetism calculating; Result of calculation shows, during with the punching of the utility model, core length can shorten to 300mm from original 343mm; Silicon steel sheet can be saved about 12.5%, has reduced production cost.
Therefore, the dimensional structure of the generator punching of the utility model design can strengthen the rigidity of rotating shaft greatly, has improved the computing ballance correction that the rotating shaft distortion causes; Can reduce the material cost of generator, improve generator performance simultaneously, this advantage is particularly outstanding for the generator of big specification; Because the generator of big specification; Like 120KW-4P, can not unconfinedly lengthen by its structural limitations core length, and the employing of the new solution of the utility model can make this problem be readily solved; Make the alternative of 360 support marine generators bigger, the punching structure of the utility model can be suitable on more motors.
In addition, owing to adopt the punching structure of the utility model, its stator cage diameter is constant, end cap in the generator; Blind flange, wire box, exciter, bearing etc. are all constant; Its overall dimension, structure, installation dimension are all the same with original 360, therefore on supporting with the client, also can not clash.
Those of ordinary skill in the art will be appreciated that; Above embodiment only is the purpose that is used for explaining the utility model; And be not with the qualification of doing the utility model; As long as in the essential scope of the utility model, in the scope to the variation of the above embodiment, claim that modification all will drop on the utility model.
Claims (1)
1. generator punching, the stator of said generator (21) is overrided to form by many stator punchings, places the rotor (22) in the stator (21) to be overrided to form by many rotor punchings, and casing (23) places the outside of stator (21), it is characterized in that:
The external diameter of each stator punching (L21) is 410mm;
The internal diameter of each stator punching (L25) is 286mm;
The internal diameter (L23) of casing (23) is 432mm;
Stator (21) external diameter is 11mm to the monolateral air duct width (L22) of casing (23) internal diameter;
The axis hole of rotor punching (L24) diameter is 80mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202124744U CN202172309U (en) | 2011-06-21 | 2011-06-21 | Punching sheet of generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202124744U CN202172309U (en) | 2011-06-21 | 2011-06-21 | Punching sheet of generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202172309U true CN202172309U (en) | 2012-03-21 |
Family
ID=45830495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202124744U Expired - Fee Related CN202172309U (en) | 2011-06-21 | 2011-06-21 | Punching sheet of generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202172309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474458A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of rotor punching wind path structure |
| CN110474458B (en) * | 2019-09-24 | 2024-05-14 | 上海电气集团上海电机厂有限公司 | Rotor punching sheet air path structure |
-
2011
- 2011-06-21 CN CN2011202124744U patent/CN202172309U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110474458A (en) * | 2019-09-24 | 2019-11-19 | 上海电气集团上海电机厂有限公司 | A kind of rotor punching wind path structure |
| CN110474458B (en) * | 2019-09-24 | 2024-05-14 | 上海电气集团上海电机厂有限公司 | Rotor punching sheet air path structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120321 Termination date: 20200621 |