CN2674747Y - Rotor groove liner or protective ring sliding device for electric generator - Google Patents
Rotor groove liner or protective ring sliding device for electric generator Download PDFInfo
- Publication number
- CN2674747Y CN2674747Y CN 200420032555 CN200420032555U CN2674747Y CN 2674747 Y CN2674747 Y CN 2674747Y CN 200420032555 CN200420032555 CN 200420032555 CN 200420032555 U CN200420032555 U CN 200420032555U CN 2674747 Y CN2674747 Y CN 2674747Y
- Authority
- CN
- China
- Prior art keywords
- protective ring
- groove liner
- electric generator
- retaining ring
- lubricant coating
- 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 - Lifetime
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- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The utility model relates to a sliding device for a rotor groove liner or a protective ring of an electric generator, which aims at reducing the friction between copper wires of a rotor of the electric generator and the inner surfaces of the groove liner and the protective ring, so that the influence on the normal running of the electric generator due to the damaged insulation of the groove liner and the protective ring caused by the friction can be avoided. The sliding device for a rotor groove liner or a protective ring of an electric generator has the layer structure that the outer layer is the groove liner or the protective ring, the middle layer is a fragrant polyamide fibred paper layer, and the inner layer is a dry lubricant coating layer. The dry lubricant coating layer which has favorable impregnability and lubricating property is sprayed or coated on the surface of the groove liner or the protective ring, so that a uniform cover film can be formed, the coefficient of friction can be reduced, and accordingly, the lubricating effect between the copper wires and the surface of the groove liner or the protective ring can be effectively improved. The damaged insulation of the groove liner and the protective ring caused by friction can be avoided, so that the normal running of the electric generator can be ensured.
Description
Technical field
The utility model is applied on the generator amature, is used to reduce the frictional force of generator amature copper cash and slot liner and retaining ring inner surface, avoids owing to frictional force is damaged slot liner and retaining ring insulation.
Background technology
Because rotor of steam turbo generator length is longer, general rotor coil is in 3～8 meters scopes.Because the rotor copper conductor is in a peak regulation or a shutdown running; need be subjected to the impact of cold cycling; copper cash certainly leads to and expands with heat and contract with cold; destroyed and slot liner and retaining ring between position balance; the friction of copper cash and slot liner and retaining ring will damage the insulating barrier of slot liner and retaining ring during heat expansion, directly influence the normal operation of generator.
Summary of the invention
The utility model is intended to reduce the frictional force of generator amature copper cash and slot liner and retaining ring inner surface, and avoiding influences the normal operation of generator owing to frictional force is damaged slot liner and retaining ring insulation, and a kind of generator amature slot liner or retaining ring slide device are provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of generator amature slot liner slide device is characterized in that: the slot liner inwall is provided with a dry lubricant coating.
A kind of generator amature retaining ring slide device is characterized in that: the retaining ring inwall is provided with a dry lubricant coating.
Be provided with a fiber paper between described slot liner and retaining ring inwall and the dry lubricant coating.
Described dry lubricant coating is synthetic by polytetrafluoroethylene and modified epoxy.
Described fiber paper is the aromatic polyamide fibers ply of paper.
Advantage of the present utility model is:
Because the dry lubricant coating that the utility model adopted has stable chemical properties, has good impregnability, adopt spray or brushing on slot liner and retaining ring surface, can form uniform coverlay, its coverlay can keep cleaning surfaces, have good lubricating property, coefficient of friction is low, improves the lubricant effect of copper cash and slot liner and retaining ring slidingsurface effectively.Avoid having guaranteed the normal operation of generator owing to frictional force is damaged slot liner and retaining ring insulation.
Description of drawings
Fig. 1 is a slot liner slide device layer structure schematic diagram
Fig. 2 is a retaining ring slide device layer structure schematic diagram
Embodiment
This generator amature slot liner and retaining ring slide device, its layer structure are outer be laminated glass articles slot liner 1 or retaining ring 4 outsides, and middle for being aromatic polyamide fibers ply of paper 2, nexine is a dry lubricant coating 3.
Described dry lubricant coating 3 is synthetic by polytetrafluoroethylene and modified epoxy.
The performance index of the dry lubricant that the utility model adopted are as follows:
Appearance milky white
Proportion 1.028 ± 0.002
Viscosity 3.44 ± 0.20cp
Coefficient of friction 0.10 ± 0.04
Claims (8)
1, a kind of generator amature slot liner slide device is characterized in that: slot liner (1) inwall is provided with a dry lubricant coating (3).
2, a kind of generator amature slot liner slide device according to claim 1 is characterized in that: be provided with a fiber paper (2) between described slot liner (1) inwall and the dry lubricant coating (3).
3, a kind of generator amature slot liner slide device according to claim 1 and 2 is characterized in that: described dry lubricant coating (3) is synthetic by polytetrafluoroethylene and modified epoxy.
4, a kind of generator amature slot liner slide device according to claim 1 and 2 is characterized in that: described fiber paper (2) is the aromatic polyamide fibers ply of paper.
5, a kind of generator amature retaining ring slide device is characterized in that: retaining ring (4) inwall is provided with a dry lubricant coating (3).
6, a kind of generator amature retaining ring slide device according to claim 5 is characterized in that: be provided with a fiber paper (2) between described retaining ring (4) inwall and the dry lubricant coating (3).
7, according to claim 5 or 6 described a kind of generator amature retaining ring slide devices, it is characterized in that: described dry lubricant coating (3) is synthetic by polytetrafluoroethylene and modified epoxy.
8, according to claim 5 or 6 described a kind of generator amature retaining ring slide devices, it is characterized in that: described fiber paper (2) is the aromatic polyamide fibers ply of paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032555 CN2674747Y (en) | 2004-01-14 | 2004-01-14 | Rotor groove liner or protective ring sliding device for electric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420032555 CN2674747Y (en) | 2004-01-14 | 2004-01-14 | Rotor groove liner or protective ring sliding device for electric generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674747Y true CN2674747Y (en) | 2005-01-26 |
Family
ID=34483757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420032555 Expired - Lifetime CN2674747Y (en) | 2004-01-14 | 2004-01-14 | Rotor groove liner or protective ring sliding device for electric generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674747Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107005108A (en) * | 2014-12-03 | 2017-08-01 | 日产自动车株式会社 | The rotor construction of electric rotating machine |
-
2004
- 2004-01-14 CN CN 200420032555 patent/CN2674747Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107005108A (en) * | 2014-12-03 | 2017-08-01 | 日产自动车株式会社 | The rotor construction of electric rotating machine |
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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 |
Expiration termination date: 20140114 Granted publication date: 20050126 |
|
| CX01 | Expiry of patent term |