CN202586583U - Insulating end cover of wind power generator - Google Patents
Insulating end cover of wind power generator Download PDFInfo
- Publication number
- CN202586583U CN202586583U CN 201220146521 CN201220146521U CN202586583U CN 202586583 U CN202586583 U CN 202586583U CN 201220146521 CN201220146521 CN 201220146521 CN 201220146521 U CN201220146521 U CN 201220146521U CN 202586583 U CN202586583 U CN 202586583U
- Authority
- CN
- China
- Prior art keywords
- end cap
- cap seat
- end cover
- cover
- bearing
- 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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Abstract
The utility model relates to an insulating end cover of a wind power generator. The insulating end cover comprises an end cover, an end cover seat outer sleeve and an end cover seat inner sleeve. An upper part of the end cover seat outer sleeve is fixed with the end cover. The end cover seat outer sleeve is in interference fit with the end cover seat inner sleeve wrapped by an insulation layer. Matching surfaces of the end cover seat outer sleeve and the end cover seat inner sleeve are separated by the insulation layer. Two side edges of respective matching surface of the end cover seat outer sleeve and the end cover seat inner sleeve are provided with corresponding grooves which are sealed by resins. Two sides of the end cover seat inner sleeve in an axial direction are respectively fixed with a bearing front cover and a bearing back cover which are not in contact with the end cover seat outer sleeve. The end cover seat inner sleeve is internally provided with a rolling bearing. The bearing front cover is embedded with a front sealing ring. The bearing back cover is embedded with a back sealing ring. The front sealing ring and the back sealing ring are respectively fixedly connected with two sides of a rolling bearing inner ring. The insulating end cover can effectively obstruct shaft current, and damage of the rolling bearing caused by the shaft current can be effectively prevented.
Description
Technical field
The utility model relates to a kind of insulated end cover of wind-driven generator.
Background technology
The insulated end cover of wind-driven generator is for overcoming a kind of insulation mode that shaft current adopts the damage of bearing; It has overcome the bearing manufacturing cost height that existing insulating rolling bearing exists, expensive, and galvanic corrosion is serious; Insulating coating has fragility; Bearing is fragile surface of insulating layer in use or dismounting, and the easy moisture absorption of ceramic material, causes defectives such as failure of insulation easily.Existing insulated end cover is divided into inside and outside two parts with the end cap base, and middle pad insulating material, and base is fastening with bolt need increase insulation spacer and insulating case prevents that bolt is with support and rotor electrical communication to bolt.Damage insulation spacer easily during to bolted during assembling damages easily when disassembling and assembling machine and pollutes insulated end cover, needs cleaned at regular intervals or changes owing to pollute or damage the insulated end cover that lost efficacy, insulated end cover weak point in useful life.Therefore need a kind of insulated end cover that satisfies wind-driven generator reliability height, long service life requirement of design.
Formerly application for a patent for invention CN201110337310.9 discloses a kind of wind-driven generator insulated end cover; The defective that this scheme exists is: end cap is to realize being connected fastening through bolt with bearing chamber; Insulation between end cap and the bearing chamber is sealing not; The moisture absorption makes failure of insulation easily, needs the insulation periodic replacement.
The utility model content
The technical problem that the utility model will solve is: overcome existing technical deficiency, a kind of insulated end cover of wind-driven generator is provided, can effectively intercept shaft current, prevent that effectively shaft current from causing damage to rolling bearing.
The utility model solves the technical scheme that its technical problem adopted: a kind of insulated end cover of wind-driven generator; Has cover in end cap, end cap seat overcoat, the end cap seat; Described end cap seat overcoat top and end cap are fixed, described end cap seat overcoat and the interior cover of the end cap seat that is surrounded by insulating barrier interference fit, and cover mating surface place is separated by insulating barrier in described end cap seat overcoat and the end cap seat; Cover place, mating surface both sides of the edge separately all offers corresponding grooves in described end cap seat overcoat, the end cap seat; By resin-sealed, the axial both sides of cover are fixed with bearing protecgulum and bearing bonnet respectively in the described end cap seat in the described groove, described bearing protecgulum and bearing bonnet all with the noncontact of end cap seat overcoat; In the cover rolling bearing is installed in the described end cap seat; Described bearing protecgulum is chimeric have before the envelope ring, described bearing bonnet is chimeric to have a back envelope ring, described before envelope ring, back envelope ring be fixedly connected with the both sides of rolling bearing inner ring respectively.
Further; The mating surface place of described end cap seat overcoat is processed with the downstairs boss; The mating surface place of cover is processed with the downstairs boss and goes up the ladder boss accordingly in the described end cap seat; Described downstairs boss and last ladder boss fit, and described downstairs boss and last ladder boss joint place are separated by insulating barrier.
Further, the junction is equipped with the annulus insulation cushion in the middle of described downstairs boss and the last ladder boss.
Further, cover, insulating barrier, end cap seat overcoat are integrated in the described end cap seat.
The beneficial effect of the utility model is: owing to adopted cover in end cap seat overcoat and the end cap seat; End cap seat overcoat is independent to be fixed with end cap; Cover is independent in the end cap seat fixes with bearing protecgulum, bearing bonnet, bearing protecgulum and bearing bonnet all with the noncontact of end cap seat overcoat, add the setting of insulating barrier; Effectively intercept shaft current, prevent that effectively shaft current from causing damage to rolling bearing.
Owing to adopted resin that insulating barrier is sealed, the erosion resisting insulation performance is good, and is anti-aging, and reliability is high, can resist outdoor adverse circumstances influence, reduces the generation of shaft current.Owing to adopted cover in the end cap seat, insulating barrier, end cap seat overcoat integral structure, avoided generator install and during dismounting to the damage of insulating barrier.Can obviously improve the operation conditions of bearing, effectively intercept shaft current and import the path of support into, can reduce the probability that insulation is broken down through bearing.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the local longitudinal terminal surface sketch map of the utility model;
Wherein: 1. rotating shaft, 2. bearing protecgulum, 3. resin, 4. end cap seat overcoat, 5. end cap, 6. insulating barrier, 7. cover in the end cap seat, 8. bearing bonnet, 9. back envelope ring, 10. annulus insulation cushion, envelope ring before 11., 12. rolling bearings.
Embodiment
Combine accompanying drawing that the utility model is further described now.The sketch map that these accompanying drawings are simplification is only explained the basic structure of the utility model in a schematic way, so it only shows the formation relevant with the utility model.
Shown in Figure 2 like Fig. 1, a kind of insulated end cover of wind-driven generator has cover 7 in end cap 5, end cap seat overcoat 4, the end cap seat; End cap seat overcoat 4 tops and end cap 5 are fixing, end cap seat overcoat 4 and the interior cover of the end cap seat that is surrounded by insulating barrier 67 interference fit, and cover 7 mating surface places are by insulating barrier 6 separations in end cap seat overcoat 4 and the end cap seat; Cover 7 place, mating surface both sides of the edge separately all offers corresponding grooves in end cap seat overcoat 4, the end cap seat; By resin 3 sealings, cover 7 axial both sides are fixed with bearing protecgulum 2 and bearing bonnet 8 respectively in the end cap seat in the groove, bearing protecgulum 2 and bearing bonnet 8 all with 4 noncontacts of end cap seat overcoat; In the cover 7 rolling bearing 12 is installed in the end cap seat; Bearing protecgulum 2 is chimeric have before envelope ring 11, bearing bonnet 8 is chimeric to have a back envelope ring 9, preceding envelope ring 11, back envelope ring 9 are fixedly connected with the both sides of rolling bearing 12 inner rings respectively.Cover 4 is through adding thermal expansion and insulating barrier 6, end cap seat overcoat 7 being integrally formed structures in the end cap seat.
The mating surface place of end cap seat overcoat 4 is processed with the downstairs boss; The mating surface place of cover 7 is processed with the downstairs boss and goes up the ladder boss accordingly in the end cap seat; Downstairs boss and last ladder boss fit, and downstairs boss and last ladder boss joint place are separated by insulating barrier 6.The junction is equipped with annulus insulation cushion 10 in the middle of downstairs boss and the last ladder boss.During use, rolling bearing 12 is connected with rotating shaft 1 contact.
Owing to adopted the interior cover 7 of end cap seat overcoat 4 and end cap seat; End cap seat overcoat 4 is independent fixing with end cap 5; Cover 7 is independent fixing with bearing protecgulum 2, bearing bonnet 8 in the end cap seat, bearing protecgulum 2 and bearing bonnet 8 all with 4 noncontacts of end cap seat overcoat, add the setting of insulating barrier 6 and annulus insulation cushion 10; Effectively intercept shaft current, prevent that effectively shaft current from causing damage to rolling bearing 12.
Owing to adopted 3 pairs of insulating barriers 6 of resin to seal, the erosion resisting insulation performance is good, and is anti-aging, and reliability is high, can resist outdoor adverse circumstances influence, reduces the generation of shaft current.Owing to adopted cover 4, insulating barrier 6, end cap seat overcoat 7 integral structures in the end cap seat, avoided generator install and during dismounting to the damage of insulating barrier 6.Can obviously improve the operation conditions of rolling bearing 12, effectively intercept shaft current and import the path of support into, can reduce the probability that insulation is broken down through rolling bearing 12.
What should explain at last is: above embodiment only in order to the explanation the utility model and and the described technical scheme of unrestricted the utility model; Therefore, although this specification has carried out detailed explanation with reference to the foregoing description to the utility model,, those of ordinary skill in the art should be appreciated that still and can make amendment or be equal to replacement the utility model; And all do not break away from the technical scheme and the improvement thereof of the spirit and the scope of the utility model, and it all should be encompassed in the claim scope of the utility model.
Claims (4)
1. the insulated end cover of a wind-driven generator; It is characterized in that: have cover in end cap, end cap seat overcoat, the end cap seat; Described end cap seat overcoat top and end cap are fixed, described end cap seat overcoat and the interior cover of the end cap seat that is surrounded by insulating barrier interference fit, and cover mating surface place is separated by insulating barrier in described end cap seat overcoat and the end cap seat; Cover place, mating surface both sides of the edge separately all offers corresponding grooves in described end cap seat overcoat, the end cap seat; By resin-sealed, the axial both sides of cover are fixed with bearing protecgulum and bearing bonnet respectively in the described end cap seat in the described groove, described bearing protecgulum and bearing bonnet all with the noncontact of end cap seat overcoat; In the cover rolling bearing is installed in the described end cap seat; Described bearing protecgulum is chimeric have before the envelope ring, described bearing bonnet is chimeric to have a back envelope ring, described before envelope ring, back envelope ring be fixedly connected with the both sides of rolling bearing inner ring respectively.
2. the insulated end cover of a kind of wind-driven generator according to claim 1; It is characterized in that: the mating surface place of described end cap seat overcoat is processed with the downstairs boss; The mating surface place of cover is processed with the downstairs boss and goes up the ladder boss accordingly in the described end cap seat; Described downstairs boss and last ladder boss fit, and described downstairs boss and last ladder boss joint place are separated by insulating barrier.
3. the insulated end cover of a kind of wind-driven generator according to claim 2 is characterized in that: the junction is equipped with the annulus insulation cushion in the middle of described downstairs boss and the last ladder boss.
4. the insulated end cover of a kind of wind-driven generator according to claim 1 is characterized in that: cover, insulating barrier, end cap seat overcoat are integrated in the described end cap seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146521 CN202586583U (en) | 2012-03-31 | 2012-03-31 | Insulating end cover of wind power generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220146521 CN202586583U (en) | 2012-03-31 | 2012-03-31 | Insulating end cover of wind power generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202586583U true CN202586583U (en) | 2012-12-05 |
Family
ID=47255949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220146521 Expired - Lifetime CN202586583U (en) | 2012-03-31 | 2012-03-31 | Insulating end cover of wind power generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202586583U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138461A (en) * | 2013-03-13 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Generator strengthened bearing housing seal structure used for dumper |
| CN103138481A (en) * | 2013-03-18 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Single bearing supporting generator for dumper |
-
2012
- 2012-03-31 CN CN 201220146521 patent/CN202586583U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103138461A (en) * | 2013-03-13 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Generator strengthened bearing housing seal structure used for dumper |
| CN103138481A (en) * | 2013-03-18 | 2013-06-05 | 永济新时速电机电器有限责任公司 | Single bearing supporting generator for dumper |
| CN103138481B (en) * | 2013-03-18 | 2015-11-11 | 永济新时速电机电器有限责任公司 | Dumper single-bearing supports generator |
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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 |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |