CN102723802A - Novel end cover insulation structure of wind power generator - Google Patents
Novel end cover insulation structure of wind power generator Download PDFInfo
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- CN102723802A CN102723802A CN2012102127328A CN201210212732A CN102723802A CN 102723802 A CN102723802 A CN 102723802A CN 2012102127328 A CN2012102127328 A CN 2012102127328A CN 201210212732 A CN201210212732 A CN 201210212732A CN 102723802 A CN102723802 A CN 102723802A
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- bearing
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- end cover
- insulation
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Abstract
The invention discloses a novel end cover insulation structure of a wind power generator. The novel end cover insulation structure comprises a bearing (7) and a bearing seat (2), wherein the bearing seat (2) is fixed on a motor end cover (1) and provided with a cylindrical inner wall which is contacted with an outer wall of the bearing (7); a bearing inner cover (8) is arranged at the rear end of the bearing (7); a front end face of the bearing inner cover (8) is contacted with an outer ring of the bearing (7); an oil retainer (3) is arranged at the front end of the bearing (7) and provided with a rear end face which is contacted with the outer ring of the bearing (7); and the cylindrical inner wall of the bearing seat (2), the front end face of the bearing inner cover (8) and the rear end face of the oil retainer (3) are respectively provided with an insulating layer (6). The novel end cover insulation structure of the wind power generator has the advantages that effective insulation between a bearing body and an end cover is realized, and a bearing insulation structure can have a long-term insulation effect, is reliable in bearing insulation mechanical performance and effectively protects a metal surface.
Description
Technical field
The present invention relates to technical field of wind power generator, particularly a kind of novel wind generator end cap insulation system.
Background technology
Wind-driven generator running environment is abominable, very inconvenience of its lifting and replacing, and maintenance cost is extremely expensive, and therefore the reliability to wind-driven generator has very high requirement.
Wherein, the reliability of wind-driven generator middle (center) bearing part is particularly important.Require high accuracy, low vibration, low noise, dynamo bearing is in the state of continuous high speed work again, thereby the bearing arrangement designed rationality is most important.In order effectively to suppress the infringement of shaft voltage, when bearing arrangement designs, all need reasonably carry out the insulation processing of bearing to bearing.Bearing insulation structural design unreasonable not only directly influences useful life of bearing, also the integral bearing reliability of structure impacted, and finally because of bearing fault causes shutting down, produces maintenance work a series of complicacies, expensive then.
Insulated part has all adopted traditional laminated product in present stage numerous end cap insulation systems, the distortion of insulating material and make moist and cause failure of insulation and then cause bearing fault in long-term use.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, provide effective insulation can a kind ofly be provided, can reach the novel wind generator end cap insulation system that mechanical performance requires again.
The object of the invention is realized through following technical scheme: a kind of novel wind generator end cap insulation system; It comprises bearing that is installed on the motor shaft and the bearing pedestal that is set in the bearing outside, and on electric motor end cap, bearing pedestal has a cylinder shape inner wall that contacts with bearing outer wall to bearing pedestal through bolt; The rear end of bearing is provided with internal bearing cover; Internal bearing cover is installed on the bearing pedestal, and the front end face of internal bearing cover contacts with bearing outer ring, and the front end that is positioned at bearing is provided with bearing end cover; Bearing end cover is installed on the bearing pedestal; And also be provided with oil scraper ring between bearing end cover and the bearing pedestal, oil scraper ring has one and the contacted rear end face of bearing outer ring, is provided with a layer insulating on the rear end face of the cylinder shape inner wall of bearing pedestal, the front end face of internal bearing cover and oil scraper ring.
Described insulating barrier is a teflon coatings.
The present invention has the following advantages: the present invention is provided with one deck teflon coatings insulating barrier contacting with bearing on part and the contact-making surface that bearing contacts; Thereby reached the effective insulation between bearing body and the end cap; And this teflon coatings insulating barrier has good moisture resistance, heat-resisting quantity, chemical resistance, high sheet resistance and extremely low coefficient of friction; Make this bearing insulation structure long-term insulation effect be guaranteed; Also improved the Mechanical Reliability of bearing insulation, also effective protective effect has been played in the metal surface.
Description of drawings
Fig. 1 is a structural representation of the present invention
Among the figure, 1-electric motor end cap, 2-bearing pedestal, 3-oil scraper ring, 4-bearing end cover, 5-disc, 6-insulating barrier, 7-bearing, 8-internal bearing cover.
Embodiment
Below in conjunction with accompanying drawing the present invention is done further description:
A kind of novel wind generator end cap insulation system, it comprises bearing 7 that is installed on the motor shaft and the bearing pedestal 2 that is set in bearing 7 outsides, bearing pedestal 2 passes through bolt on electric motor end cap 1; Bearing pedestal 2 has a cylinder shape inner wall that contacts with bearing 7 outer walls; The rear end of bearing 7 is provided with internal bearing cover 8, and internal bearing cover 8 is installed on the bearing pedestal 2, and the front end face of internal bearing cover 8 contacts with bearing 7 outer rings; The front end that is positioned at bearing 7 is provided with bearing end cover 4; Bearing end cover 4 is installed on the bearing pedestal 2, and also is provided with oil scraper ring 3 between bearing end cover 4 and the bearing pedestal 2, and oil scraper ring 3 has one and the contacted rear end face in bearing 7 outer rings; 4 of bearing 7 and bearing end covers also are provided with disc 5; Disc 5 is installed on the motor shaft, is provided with a layer insulating 6 on the front end face of the cylinder shape inner wall of bearing pedestal 2, internal bearing cover 8 and the rear end face of oil scraper ring 3, and described insulating barrier 6 is a teflon coatings.
Be provided with one deck teflon coatings insulating barrier contacting with bearing on part and the contact-making surface that bearing contacts; Thereby reached the effective insulation between bearing 7 and the end cap; And this teflon coatings insulating barrier has good moisture resistance, heat-resisting quantity, chemical resistance, high sheet resistance and extremely low coefficient of friction; Make this bearing insulation structure long-term insulation effect be guaranteed, also improved the Mechanical Reliability of bearing insulation, also effective protective effect has been played in the metal surface.
Claims (2)
1. novel wind generator end cap insulation system; It comprises the bearing (7) that is installed on the motor shaft and is set in the bearing pedestal (2) in bearing (7) outside; Bearing pedestal (2) passes through bolt on electric motor end cap (1); It is characterized in that: bearing pedestal (2) has a cylinder shape inner wall that contacts with bearing (7) outer wall, and the rear end of bearing (7) is provided with internal bearing cover (8), and internal bearing cover (8) is installed on the bearing pedestal (2); And the front end face of internal bearing cover (8) contacts with bearing (7) outer ring; The front end that is positioned at bearing (7) is provided with bearing end cover (4), and bearing end cover (4) is installed on the bearing pedestal (2), and also is provided with oil scraper ring (3) between bearing end cover (4) and the bearing pedestal (2); Oil scraper ring (3) has one and the contacted rear end face in bearing (7) outer ring, is provided with a layer insulating (6) on the front end face of the cylinder shape inner wall of bearing pedestal (2), internal bearing cover (8) and the rear end face of oil scraper ring (3).
2. a kind of novel wind generator end cap insulation system according to claim 1 is characterized in that: described insulating barrier (6) is a teflon coatings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102127328A CN102723802A (en) | 2012-06-26 | 2012-06-26 | Novel end cover insulation structure of wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102127328A CN102723802A (en) | 2012-06-26 | 2012-06-26 | Novel end cover insulation structure of wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102723802A true CN102723802A (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102127328A Pending CN102723802A (en) | 2012-06-26 | 2012-06-26 | Novel end cover insulation structure of wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102723802A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516110A (en) * | 2013-10-09 | 2014-01-15 | 中达电机股份有限公司 | High-voltage motor bearing bush structure capable of guaranteeing concentricity |
| CN106451892A (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Shaft current preventing electric motor cover |
| CN106451875A (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Split-type motor cover |
| CN107359723A (en) * | 2017-07-26 | 2017-11-17 | 卧龙电气集团股份有限公司 | The bearing insulation assembling structure and its manufacture method of insulating barrier are set in a kind of bearing holder (housing, cover) |
| CN112713691A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Be applied to explosion-proof motor's insulating end cover |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199994A (en) * | 1987-01-14 | 1988-07-20 | Brush Electrical Machines Limi | Rotary electrical machine having a flame proof electrically-insulated housing |
| CN101699719A (en) * | 2009-11-10 | 2010-04-28 | 无锡哈电电机有限公司 | Vertical motor |
| CN202127314U (en) * | 2011-06-29 | 2012-01-25 | 湘潭市兴盛液压机械制造有限公司 | Insulation end cover of wind driven generators |
| CN102497071A (en) * | 2011-11-29 | 2012-06-13 | 中电电机股份有限公司 | Assembly structure of insulating rolling bearing |
| CN202616916U (en) * | 2012-06-26 | 2012-12-19 | 东方电气（乐山）新能源设备有限公司 | Novel end cover insulation structure for wind driven generator |
-
2012
- 2012-06-26 CN CN2012102127328A patent/CN102723802A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199994A (en) * | 1987-01-14 | 1988-07-20 | Brush Electrical Machines Limi | Rotary electrical machine having a flame proof electrically-insulated housing |
| CN101699719A (en) * | 2009-11-10 | 2010-04-28 | 无锡哈电电机有限公司 | Vertical motor |
| CN202127314U (en) * | 2011-06-29 | 2012-01-25 | 湘潭市兴盛液压机械制造有限公司 | Insulation end cover of wind driven generators |
| CN102497071A (en) * | 2011-11-29 | 2012-06-13 | 中电电机股份有限公司 | Assembly structure of insulating rolling bearing |
| CN202616916U (en) * | 2012-06-26 | 2012-12-19 | 东方电气（乐山）新能源设备有限公司 | Novel end cover insulation structure for wind driven generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103516110A (en) * | 2013-10-09 | 2014-01-15 | 中达电机股份有限公司 | High-voltage motor bearing bush structure capable of guaranteeing concentricity |
| CN106451892A (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Shaft current preventing electric motor cover |
| CN106451875A (en) * | 2016-08-31 | 2017-02-22 | 无锡太昌精密机械有限公司 | Split-type motor cover |
| CN107359723A (en) * | 2017-07-26 | 2017-11-17 | 卧龙电气集团股份有限公司 | The bearing insulation assembling structure and its manufacture method of insulating barrier are set in a kind of bearing holder (housing, cover) |
| CN112713691A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Be applied to explosion-proof motor's insulating end cover |
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| PB01 | Publication | ||
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121010 |