CN201207603Y - Armature ring pressing construction for brushless exciting dynamo - Google Patents
Armature ring pressing construction for brushless exciting dynamo Download PDFInfo
- Publication number
- CN201207603Y CN201207603Y CNU2008200586728U CN200820058672U CN201207603Y CN 201207603 Y CN201207603 Y CN 201207603Y CN U2008200586728 U CNU2008200586728 U CN U2008200586728U CN 200820058672 U CN200820058672 U CN 200820058672U CN 201207603 Y CN201207603 Y CN 201207603Y
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- CN
- China
- Prior art keywords
- trim ring
- ring
- armature
- circle
- tooth pressure
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- 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 - Lifetime
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- Manufacture Of Motors, Generators (AREA)
Abstract
The utility model relates to an armature pressing ring structure for a brushless exciter which is characterized in that a non-oriented silicon steel sheet punching ring is included. A tooth pressure sheet ring is connected in the non-oriented silicon steel sheet punching ring, the tooth pressure sheet ring is matched with a pressure ring by a bayonet, and the surface of the pressure ring which is contacted with the tooth pressure sheet ring in a compressed way is provided with a conicity ranged from 0.1 mm to 1.0 mm. The utility model has the advantages that the manufacture is convenient, the cost of the brushless exciter is greatly lowered, and the casting defects that bubble inclusion may exist in an original casting, and the like are avoided, as well as the reliability of a product is enhanced.
Description
Technical field
The utility model relates to a kind of brushless exciter armature trim ring structure, can be used for the 4500kW brushless exciter and joins 1000MW rank generator, belongs to technical field of generators.
Background technology
The 4500kW brushless exciter is the auxiliary products of thermoelectricity 1000MW grade generating set, and the excitation assurance of necessity is provided for the safe operation of 1000MW grade generator.The 4500kW brushless exciter has characteristics such as capacity is big, parameter height, as shown in Figure 1, is Siemens's brush exciter armature trim ring 6 section of structures, and its complex structure, new point is many, difficulty is big.Its operation principle: the permanent magnetism pilot exciter produces three-phase alternating current, provides variable direct current to the main exciter excitation by AVR rectification and control.After the rectification of rotary rectifier bridge, offer the generator amature winding at the three-phase alternating current of main exciter rotor (also being armature) induction by the lead-in wire of the direct current in the rotating shaft.As seen, armature plays a key effect in brushless exciter.The armature trim ring is finger type trim ring again, lays respectively at the two ends of armature, and being used for clamping armature core is that the thick non-oriented silicon steel sheet of 1500 multi-disc 0.5mm is overrided to form, and is the crucial mechanical part of armature.Do not have the clamping of armature trim ring, armature core will become flexible in high speed rotating, threatens the safe operation of brushless exciter, thereby influences the operation of whole generating machine unit.
4500kW brushless excitation machine technology is introduced from Siemens.A lot of designs of Siemens can't realize according to our domestic technical merit and equipment at all, if import, price is very expensive again.The armature trim ring is exactly one of them.
Summary of the invention
The purpose of this utility model provides a kind of brushless exciter armature trim ring structure that meets domestic existing manufacture level and equipment.
For realizing above purpose, the technical solution of the utility model provides a kind of brushless exciter armature trim ring structure, it is characterized in that, comprise non-oriented silicon steel sheet punching circle, in non-oriented silicon steel sheet punching circle, connect tooth pressure sheet circle, tooth pressure sheet circle cooperates with trim ring by bayonet socket, and trim ring compresses the tapering that the face that contacts is provided with a 0.1～1.0mm with tooth pressure sheet circle.
The bayonet socket of described tooth pressure sheet circle and the bulge loop of trim ring are complementary.
The utility model is divided into two the armature trim ring, and a realization armature trim ring refers to the function-tooth support of type, a function-trim ring of realizing clamping armature.Ventilation channel plate is a soldering stainless steel bar in the non-orientation silicon steel punching, and trim ring adopts anti-magnet steel forging to process.
The utility model has the advantages that easily manufacturedly, greatly reduce the brushless exciter cost, and avoided the casting flaws such as entrained air bubbles that may exist in the former foundry goods, improved reliability of products.
Description of drawings
Fig. 1 Siemens brush exciter armature trim ring section of structure;
Fig. 2 is a brushless exciter armature trim ring structural representation;
Fig. 3 is the A-A cutaway view.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment
Shown in Fig. 2,3,, form by trim ring 1 and tooth support 2 for brushless exciter armature trim ring structural representation.Described a kind of brushless exciter armature trim ring structure is made up of non-oriented silicon steel sheet punching circle 1, tooth pressure sheet circle 2 and trim ring 3, welding tooth pressure sheet circle 2 in non-oriented silicon steel sheet punching circle 1, and tooth pressure sheet circle 2 cooperates with the bulge loop 5 of trim ring 3 by bayonet socket 4.
Tooth pressure sheet circle 2 thickness are in 8～18mm scope, in order to guarantee that trim ring 3 and tooth pressure sheet circle 2 better compress, compress in the middle of avoiding occurring, the phenomenon that cylindrical is loosening compresses the face that contacts at trim ring 3 with tooth pressure sheet circle 2, be processed into the tapering of a 0.1～1.0mm especially, just cylindrical is thick, and interior circle is little, like this, can more effectively compress armature, prevent that armature stamping is loosening.
Claims (2)
1. a brushless exciter armature trim ring structure is characterized in that, comprises non-oriented silicon steel sheet punching circle (1), connects tooth pressure sheet circle (2) in non-oriented silicon steel sheet punching circle (1), and tooth pressure sheet circle (2) cooperates with trim ring (3) by bayonet socket (4).
2. a kind of brushless exciter armature trim ring structure according to claim 1, it is characterized in that, the bayonet socket (4) of described tooth pressure sheet circle (2) is complementary with the bulge loop (5) of trim ring (3), and trim ring (3) compresses the tapering that the face that contacts is provided with a 0.1～1.0mm with tooth pressure sheet circle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586728U CN201207603Y (en) | 2008-05-20 | 2008-05-20 | Armature ring pressing construction for brushless exciting dynamo |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200586728U CN201207603Y (en) | 2008-05-20 | 2008-05-20 | Armature ring pressing construction for brushless exciting dynamo |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201207603Y true CN201207603Y (en) | 2009-03-11 |
Family
ID=40466659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200586728U Expired - Lifetime CN201207603Y (en) | 2008-05-20 | 2008-05-20 | Armature ring pressing construction for brushless exciting dynamo |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201207603Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532275A (en) * | 2013-10-25 | 2014-01-22 | 中电电机股份有限公司 | Rotor tooth compacting device for asynchronous motor |
-
2008
- 2008-05-20 CN CNU2008200586728U patent/CN201207603Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532275A (en) * | 2013-10-25 | 2014-01-22 | 中电电机股份有限公司 | Rotor tooth compacting device for asynchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090311 |