CN201918809U - Combined spacer sleeve for insulating and sealing stator iron core and tightening screw of power generator - Google Patents
Combined spacer sleeve for insulating and sealing stator iron core and tightening screw of power generator Download PDFInfo
- Publication number
- CN201918809U CN201918809U CN2011200371164U CN201120037116U CN201918809U CN 201918809 U CN201918809 U CN 201918809U CN 2011200371164 U CN2011200371164 U CN 2011200371164U CN 201120037116 U CN201120037116 U CN 201120037116U CN 201918809 U CN201918809 U CN 201918809U
- Authority
- CN
- China
- Prior art keywords
- iron core
- stator iron
- tightening screw
- insulating
- spacer sleeve
- 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
The utility model discloses a combined spacer sleeve for insulating and sealing a stator iron core and a tightening screw of a power generator, belongs to an insulating element and aims to provide an insulating and sealing element, which can avoid dust entering and accumulating into a stator iron core hole from any ventilation slot to cause contact short circuit between the tightening screw and the stator iron core. The combined spacer sleeve comprises insulated sleeves (4) and flanges fixed on the outer walls of the insulated sleeves, wherein the insulated sleeves (4) are respectively embedded into ventilation slots formed on a stator iron core hole (7) via respective flanges (6). By adopting the combined spacer sleeve, the tightening screw can be isolated from the stator iron core while the flanges can be embedded into the ventilation slots to seal the tightening screw and the stator iron core, so that the contact shortcoming and the short circuit hidden danger between the tightening screw and the stator iron core resulted from the dust accumulated in the stator iron core hole can be fundamentally eliminated. Therefore, the combined spacer sleeve provided by the utility model is an ideal insulating and sealing element mounted in the stator iron core hole of the power generator.
Description
Technical field: the utility model relates to a kind of insulation component, relates in particular to a kind of electricity generator stator core and stretching screw can the isolation, and can be with the insulating sleeve of stator core ventilation slot sealing.
Background technology: well-known, for the stator core lamination of fastening generator and in order to reduce the stator core loss, the inside of stator core adopts double threaded screw that the stator core lamination is strained, fixed mostly.Increase and burn out iron core for fear of electric current, must guarantee screw rod and stator core insulation.Yet the screw rod that is used for fixing the stator core lamination at present is common double threaded screw, though certain section or a few sections are provided with the insulation spacer at the two ends of stator core and this screw rod and in the middle of stator core, not with all ventilation slots sealings of stator core; Generator dust in running usually can enter to form the stator core hole from ventilation slot to be piled up, thereby the part that causes screw rod to expose comes in contact with stator core and causes short circuit, causes electric current to increase and burns out stator core, causes heavy losses.
Summary of the invention: at the above-mentioned defective that exists in the prior art, the utility model aims to provide a kind of dust of can avoiding and enters the insulation of generator stator core tightening screw rods seal combination spacer that forms accumulation the stator core hole and cause stretching screw and stator core contact short circuit from any one ventilation slot.
To achieve these goals, the utility model is by the following technical solutions: it is by insulating sleeve and be fixed on the flange that is flange-like on this insulating sleeve outer wall and constitute, and each insulating sleeve is embedded in respectively in each ventilation slot in stator core hole by flange separately.
Compared with the prior art, the utility model is owing to adopted technique scheme, position corresponding to ventilation slot in the stator core hole is provided with insulating sleeve all, therefore screw rod and stator core not only can be isolated, and the flange of flange-like can also embed in the ventilation slot and with its sealing; Thoroughly avoided form piling up and causing the defective that comes in contact between screw rod and the stator core, eliminated the short circuit hidden danger of bringing thus because of dust enters the stator core hole.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure: overhang insulation packing ring 1 stator core 2 stretching screws 3 insulating sleeves 4 ventilation slots 5 flanges 6 stator core holes 7
Embodiment: the utility model is described in further detail below in conjunction with accompanying drawing and specific embodiment:
As shown in Figure 1: the position corresponding to each ventilation slot 5 in stator core hole 7 all is provided with insulating sleeve 4, the outer wall of each insulating sleeve 4 is fixed with the flange-like flange 6 that is connected as a single entity with it, and each flange 6 is embedded in respectively in each ventilation slot 5 of stator core 2 correspondences; The stretching screw 3 that passes each insulating sleeve 4 is strained and fixed stator core 2 by nut, is provided with overhang insulation packing ring 1 between nut and the stator core 2.
Claims (1)
1. insulation of generator stator core tightening screw rods seal combination spacer, it is characterized in that: by insulating sleeve (4) be fixed on the flange (6) that is flange-like on this insulating sleeve outer wall and constitute, each insulating sleeve (4) is embedded in respectively in each ventilation slot (5) in stator core hole (7) by flange (6) separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200371164U CN201918809U (en) | 2011-02-12 | 2011-02-12 | Combined spacer sleeve for insulating and sealing stator iron core and tightening screw of power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200371164U CN201918809U (en) | 2011-02-12 | 2011-02-12 | Combined spacer sleeve for insulating and sealing stator iron core and tightening screw of power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201918809U true CN201918809U (en) | 2011-08-03 |
Family
ID=44418598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200371164U Expired - Fee Related CN201918809U (en) | 2011-02-12 | 2011-02-12 | Combined spacer sleeve for insulating and sealing stator iron core and tightening screw of power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201918809U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009556A (en) * | 2014-05-23 | 2014-08-27 | 国家电网公司 | Stator through bolt insulating device for improving ventilation performance of pump storage group |
| CN107482806A (en) * | 2017-09-13 | 2017-12-15 | 孙燕 | A kind of low-consumption high-efficiency generator |
| CN108173363A (en) * | 2018-01-25 | 2018-06-15 | 东方电气集团东方电机有限公司 | A kind of generator stator core core through screw rod connection structure and its installation method |
| CN109861050A (en) * | 2019-03-14 | 2019-06-07 | 中国长江电力股份有限公司 | A kind of replacing options of collector ring of generator electrode insulation casing |
-
2011
- 2011-02-12 CN CN2011200371164U patent/CN201918809U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009556A (en) * | 2014-05-23 | 2014-08-27 | 国家电网公司 | Stator through bolt insulating device for improving ventilation performance of pump storage group |
| CN104009556B (en) * | 2014-05-23 | 2016-06-08 | 国家电网公司 | Improve the stator core through screw rod seal that pump-storage generator ventilates |
| CN107482806A (en) * | 2017-09-13 | 2017-12-15 | 孙燕 | A kind of low-consumption high-efficiency generator |
| CN108173363A (en) * | 2018-01-25 | 2018-06-15 | 东方电气集团东方电机有限公司 | A kind of generator stator core core through screw rod connection structure and its installation method |
| CN108173363B (en) * | 2018-01-25 | 2019-01-22 | 东方电气集团东方电机有限公司 | A kind of generator stator core core through screw rod connection structure and its installation method |
| CN109861050A (en) * | 2019-03-14 | 2019-06-07 | 中国长江电力股份有限公司 | A kind of replacing options of collector ring of generator electrode insulation casing |
| CN109861050B (en) * | 2019-03-14 | 2020-06-16 | 中国长江电力股份有限公司 | Method for replacing inter-electrode insulating sleeve of generator collector ring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20140212 |