CN103986253A - Generator stator support and direct-drive forced air cooling wind generator applying same - Google Patents
Generator stator support and direct-drive forced air cooling wind generator applying same Download PDFInfo
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- CN103986253A CN103986253A CN201410240891.8A CN201410240891A CN103986253A CN 103986253 A CN103986253 A CN 103986253A CN 201410240891 A CN201410240891 A CN 201410240891A CN 103986253 A CN103986253 A CN 103986253A
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- median septum
- stator support
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- generator
- strap
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Abstract
The invention discloses a generator stator support and a direct-drive forced air cooling wind generator applying the generator stator support. The stator support comprises an annular center spacer plate, and the inner ring of the center spacer plate is used for being connected with a main shaft of the generator. The boundary of the outer ring of the center spacer plate is in a gear shape. A fixed clamping plate is fixed to the tooth top of a gear. Stand columns are fixed to the tooth root of the gear. Rib plates are fixed to the tooth face of the gear. The fixed clamping plate, the stand columns and the rib plates are perpendicular to the ring face of the center spacer plate. The rigidity of the stator support is greatly improved, and meanwhile the generator stator support has the advantages of being simple in structure, convenient to install, reliable in effect and the like and is particularly suitable for the direct-drive forced air cooling wind generator large in diameter.
Description
Technical field
The present invention relates to wind power technology field, what particularly relate to a kind of generator unit stator support and apply it directly drives air blast cooling wind-driven generator.
Background technology
Along with the high speed development of wind generating technology, wind turbine generator generator special towards high reliability, low maintenance, reduce assembly, reduce costs, the future development such as efficiency is high, integrated level is high, therefore direct wind-driven generator is developed fast in recent years.
The generator of straight drive blower generally comprises rotor and stator, and stator comprises stator support, by this support fixed iron core and coil.Due to the air gap that needs between stator and rotor to keep very little and stable, and unshakable in one's determination and coil very heavy (often can account for the more than 40% of motor weight), in running, also to be subject to very large magnetic field force effect simultaneously, this just requires the rigidity of stator support very high, just can make to keep air gap to stablize constant under blower fan operating state.
For double-fed type blower fan, the generator diameter of straight drive blower is much bigger, and along with single-machine capacity constantly increases, diameter also must be accomplished larger, and this has just further increased the difficulty of processing of stator support, and Rigidity is difficult to ensure.For the structural member of major diameter generator, weight reduction and increase rigidity become particularly important problem at present.Through patent searching and related documents, the stator support that existing patent (application number 01813973) is described, is a kind of stator support structure of multiple bar assembly composition support arms, and major function is loss of weight and noise reduction; And that patent (application number 201310009600) proposes is a kind of for directly driving the internal stator support of generator, be the support that is applied to double-stator permanent magnet direct-driven wind power generator internal stator, but well do not solve for the Rigidity of the major diameter stator support of the generator of straight drive blower.
Hence one can see that, along with the appearance of jumbo blower fan, the Rigidity of stator support more and more comes into one's own, and how to design a stator support major diameter generator that is adapted to straight drive blower, lightweight and good rigidity, real one of the current important research topic that belongs to.
Summary of the invention
An object of the present invention is to provide a kind of generator unit stator support, make its good rigidity, be adapted to have the straight drive blower of major diameter generator, there is the advantages such as simple in structure, easy for installation, reliable effect simultaneously, thereby overcome existing stator support insufficient rigidity, lack the problem of the stator support of the major diameter generator that is suitable for straight drive blower of lightweight and good rigidity.
For achieving the above object, the present invention adopts following technical scheme:
A kind of generator unit stator support, comprises annular median septum, and the interior ring of described median septum is for being connected with the main shaft of described generator, and the outer shroud limit of described median septum is gear shape; On the tooth top of wherein said gear, be fixed with strap, the tooth root portion of described gear is fixed with column, on the flank of tooth of described gear, is fixed with gusset, and described strap, column and gusset are all perpendicular to the anchor ring of described median septum.
Further, connect a described strap on described each tooth top, described gusset is fixedly connected with described strap, at interval of a described tooth root, a described column is set, and in the time that tooth root place is provided with column, described gusset is fixedly connected with described column.
Further, described strap, column and gusset are all welded on described median septum, described gusset and described strap and the welding of described column.
Further, between described median septum and described column, be fixedly connected with wing plate, and described median septum is all vertical with described wing plate with column.
Further, in described median septum, ring is connected with described main shaft by middle flange, and described middle flange and described median septum are structure as a whole.
Further, the both sides up and down of described median septum anchor ring are respectively arranged with side ring plate, described strap and column all stretch out the both sides up and down of described median septum anchor ring, the outer shroud of described side ring plate is fixedly connected with described strap, the interior ring of described side ring plate is fixedly connected with described column, and the anchor ring of described side ring plate is fixedly connected with described gusset.
Further, described upper and lower two side ring plates are parallel with described median septum and equidistant, and two ends of described strap are separately fixed on the outer ring surface of two side ring plates; Described column one end is fixed on the inner ring surface of a side ring plate, and the interior ring of the other end and another side ring plate is protruding vertically after fixing, and the external part of all columns is positioned at same anchor ring and links together by flange is fastened to each other.
Further, on described median septum and on described gusset, all have hole.
Further, between every two adjacent columns of described median septum homonymy, be sealedly connected with cover plate, the upper and lower border of described cover plate is tightly connected with described side ring plate, described median septum respectively.
Another object of the present invention be to provide a kind of apply said stator support directly drive air blast cooling wind-driven generator.Adopt following technical scheme:
One is directly driven air blast cooling wind-driven generator, comprises above-mentioned stator support, and the flange of described connection column external part is fixedly connected with the tower flanges of described wind-driven generator.
Owing to adopting technique scheme, the present invention at least has the following advantages:
(1) there is the median septum of gear shape structure due to employing, propping up shelf attachment can be fixed by welding on tooth top, tooth root and the flank of tooth of each tooth, make traditional large and long weld seam change the short and little staggered weld seam of " V " type into by gear type median septum, the weld seam of this welding manner does not interconnect, reduce widely welding stress, can reduce the distortion causing due to welding stress, weld strength increases simultaneously, and the rigidity of structure of stator support increases.
(2) conjoined structure of median septum and middle flange, has not only omitted forging flange material expense, and key has also been saved the welding deformation that middle flange welding causes.
(3) multiple elliptical apertures of median septum setting can be used for Field Force and safeguard the passage of discrepancy, are also the main thoroughfares that air enters motor simultaneously, also can be used for installing impeller locking device simultaneously.The elliptical aperture of opening on gusset, on the one hand can loss of weight, is beneficial on the other hand formation and directly drives the air blast cooling air duct of air blast cooling wind energy conversion system.
(4) stator support of the present invention is simple in structure, easy for installation, and reliable effect avoids safeguarding, and has very strong versatility and applicability, all can install the internal stator direct wind-driven generator of large-scale MW class.
(5) technical scheme of the present invention is implemented conveniently, and simple and easy reliable, technology is forward-looking, and increasing rigidity for the generator structure of diameter fan provides a kind of solution thinking and approach.
Brief description of the drawings
Above-mentioned is only the general introduction of technical solution of the present invention, and in order to better understand technological means of the present invention, below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail.
Fig. 1 is generator unit stator support overall structure schematic diagram of the present invention.
Fig. 2 is the annexation schematic diagram of median septum and each shelf attachment.
Fig. 3 is the stator support structural representation of the present invention for air blast cooling direct wind-driven generator.
Embodiment
Refer to shown in Fig. 1,2, a kind of generator unit stator support of the present invention, comprises annular median septum 1, and the interior ring of described median septum 1 is for being connected with the main shaft of described generator, and the outer shroud limit of described median septum 1 is gear shape; On the tooth top of wherein said gear, be fixed with strap 5, the tooth root portion of described gear is fixed with column 7, is fixed with gusset 6 on the flank of tooth of described gear, and described strap 5, column 7 and gusset 6 are all perpendicular to the anchor ring of described median septum 1.
The middle position of median septum 1 in stator support, its outer shroud is processed as gear shape, in it, ring is connected with generator shaft by middle flange 2, described middle flange 2 can be set to integrative-structure with described median septum 1, process and be conducive to like this reduce the residual stress brought of welding and be out of shape by a block plate, also saved the expense of bringing due to flaw detection simultaneously.
Strap 5 is welded in each tooth top of median septum 1 profile of tooth, and quantity should be consistent with the number of teeth; Column 7 is welded in median septum tooth root place, distributes and arranges along 1 outer shroud even circumferential of described median septum.Preferably, as shown in Figure 2, on each tooth top, connect a described strap 5, strap 5 and column 7 by the flank of tooth gusset 6 be connected; Column 7 distribution modes are made as every tooth uniform, at interval of a described tooth root, a described column 7 are set, and in the time that tooth root place is provided with column 7, described gusset 6 is fixedly connected with described column 7.Be that gusset 6 has two kinds of types of attachment: a kind of column 7 and strap 5 of connecting, another kind of median septum 1 and the strap 5 of connecting, connected mode all adopts welding.
As mentioned above, employing has the median septum 1 of gear shape structure, a shelf attachment such as strap 5, gusset 6, column 7 is welded on tooth top, tooth root and the flank of tooth of each tooth, makes traditional large and long weld seam change the short and little staggered weld seam of " V " type into by having the median septum 1 of gear shape outer shroud.The weld seam of this welding manner does not interconnect, and has reduced widely welding stress, has increased weld strength simultaneously.
The both sides up and down that described strap 5 and column 7 all stretch out described median septum 1 anchor ring, preferably the centre position of strap 5 height is welded on tooth top place.Both sides up and down at described median septum 1 anchor ring are respectively arranged with side ring plate 10, the outer shroud of described side ring plate 10 is fixedly connected with described strap 5, the interior ring of described side ring plate 10 is fixedly connected with described column 7, and the anchor ring of described side ring plate 10 is fixedly connected with described gusset 6.Similarly, the connected mode preferred weld of two blocks of side ring plates 10 and other shelf attachments.
Described upper and lower two side ring plates 10 are preferably parallel and equidistant with described median septum 1, and two terminations of described strap 5 are separately fixed on the outer ring surface of two side ring plates 10; Described column 7 one end are fixed on the inner ring surface of a side ring plate 10, and the interior ring of the other end and another side ring plate 10 is protruding vertically after fixing, and the external part of all columns 7 is positioned at same anchor ring and links together by flange 9 is fastened to each other.Flange 9 extends each column 7 ring-types to couple together, and further makes an overall rigid structure of the inside and outside formation of stator support.When installation, flange 9 is for being fixedly connected with the tower flanges of wind-driven generator.
For further strengthening rigidity property, on two side ring surfaces up and down of median septum 1, can be provided with several along the circumferential direction evenly distributed wing plates 4, the rectangular triangle of wing plate 4, two right-angle side is welded in respectively on column 7 and median septum 1.Also be provided with multiple elliptical apertures 3 at the anchor ring of median septum 1, when described wing plate 4 is deployed to ensure effective monitoring and control of illegal activities, need to avoid the elliptical aperture 3 on median septum 1.Elliptical aperture 3 also has following effect except the lightening hole as stator support itself herein: a, outside air enter the main passage of motor; The motor passage of coming in and going out when the safeguarding of b, Field Force; C, can be used for installing impeller locking device.
On gusset 6, be also provided with some holes, be used to stator support loss of weight on the one hand, on the other hand, when stator support of the present invention is applied to air blast cooling wind-driven generator, the elliptical aperture 8 on gusset 6 forms air blast cooling air duct for coordinating.Shown in Fig. 3, between two adjacent described columns 7, be sealedly connected with cover plate 13, the upper and lower border of described cover plate 13 is tightly connected with described median septum 1, described side ring plate 10 respectively.Cover plate 14 can by sheet metal component in addition rubber strip form, the square box shape capping that each adjacent upright posts 7 and median septum 1 and side ring plate 10 are formed.Due to the both sides up and down at median septum 1, cover plate 14 is circle distribution in stator support inner side, therefore after stator lasmination, will form a confined space with rotor, thereby form air blast cooling passage, the flow direction of wind as shown by the arrows in Figure 2, discharged by air pipe 11 by last hot blast.
Please continue to coordinate and consult Fig. 3, air pipe 11 is sheet metal component box body, be bolted with stator support, and be connected with the air exchanger of outer setting by rubber tube, the hot-air of stator interior relies on air exchanger to provide power to draw along rubber tube through air pipe.The quantity of air pipe 11 can suitably increase according to the variation of power of motor.
Axially filter box 13 is arranged on the elliptical aperture 3 on median septum 1, is made up of the fixing filter pulp at metal plate frame and middle part, is also connected with stator support by bolt, and its effect is the main thoroughfare that cold air enters motor, and filter pulp has the effect of filtered air.
Owing to having adopted above technical scheme, a kind of generator unit stator support of the present invention, simple in structure, easy for installation, reliable effect, avoids safeguarding, and has very strong versatility and applicability, all can install the internal stator direct wind-driven generator of large-scale MW class.Particularly importantly, in the lightweight while, greatly increase the rigidity of stator support, simplified manufacturing process and saved a large amount of processing tools, thereby provide a kind of solution thinking and approach for the Rigidity of major diameter stator support of exploitation direct driving motor.Industrialization for direct wind-driven generator and dependency structure part has very large facilitation.
The above; it is only preferred embodiment of the present invention; not the present invention is done to any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection scope of the present invention.
Claims (10)
1. a generator unit stator support, is characterized in that, comprises annular median septum, and the interior ring of described median septum is for being connected with the main shaft of described generator, and the outer shroud limit of described median septum is gear shape; On the tooth top of wherein said gear, be fixed with strap, the tooth root portion of described gear is fixed with column, on the flank of tooth of described gear, is fixed with gusset, and described strap, column and gusset are all perpendicular to the anchor ring of described median septum.
2. generator unit stator support according to claim 1, it is characterized in that, on described each tooth top, connect a described strap, described gusset is fixedly connected with described strap, at interval of a described tooth root, a described column is set, in the time that tooth root place is provided with column, described gusset is fixedly connected with described column.
3. generator unit stator support according to claim 2, is characterized in that, described strap, column and gusset are all welded on described median septum, described gusset and described strap and the welding of described column.
4. generator unit stator support according to claim 1, is characterized in that, between described median septum and described column, is fixedly connected with wing plate, and described median septum is all vertical with described wing plate with column.
5. generator unit stator support according to claim 1, is characterized in that, in described median septum, ring is connected with described main shaft by middle flange, and described middle flange and described median septum are structure as a whole.
6. according to the generator unit stator support described in claim 1-5 any one, it is characterized in that, the both sides up and down of described median septum anchor ring are respectively arranged with side ring plate, described strap and column all stretch out the both sides up and down of described median septum anchor ring, the outer shroud of described side ring plate is fixedly connected with described strap, the interior ring of described side ring plate is fixedly connected with described column, and the anchor ring of described side ring plate is fixedly connected with described gusset.
7. generator unit stator support according to claim 6, is characterized in that, described upper and lower two side ring plates are parallel with described median septum and equidistant, and two ends of described strap are separately fixed on the outer ring surface of two side ring plates; Described column one end is fixed on the inner ring surface of a side ring plate, and the interior ring of the other end and another side ring plate is protruding vertically after fixing, and the external part of all columns is positioned at same anchor ring and links together by flange is fastened to each other.
8. generator unit stator support according to claim 7, is characterized in that, all has hole on described median septum and on described gusset.
9. generator unit stator support according to claim 8, is characterized in that, between every two adjacent columns of described median septum homonymy, is sealedly connected with cover plate, and the upper and lower border of described cover plate is tightly connected with described side ring plate, described median septum respectively.
10. directly drive an air blast cooling wind-driven generator, it is characterized in that, comprise stator support claimed in claim 9, the flange of described connection column external part is fixedly connected with the tower flanges of described wind-driven generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240891.8A CN103986253A (en) | 2014-06-03 | 2014-06-03 | Generator stator support and direct-drive forced air cooling wind generator applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410240891.8A CN103986253A (en) | 2014-06-03 | 2014-06-03 | Generator stator support and direct-drive forced air cooling wind generator applying same |
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| Publication Number | Publication Date |
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| CN103986253A true CN103986253A (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410240891.8A Pending CN103986253A (en) | 2014-06-03 | 2014-06-03 | Generator stator support and direct-drive forced air cooling wind generator applying same |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054843A (en) * | 2017-12-29 | 2018-05-18 | 东方电气集团东方电机有限公司 | A kind of bulb through-flow electricity generator stator stand structure |
| CN110535260A (en) * | 2019-09-10 | 2019-12-03 | 浙江大学 | The stator module of motor |
| CN114157060A (en) * | 2020-09-07 | 2022-03-08 | 新疆金风科技股份有限公司 | Stator support, motor stator and motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110004803A (en) * | 2010-09-27 | 2011-01-14 | 김덕보 | Wind power apparatus |
| CN203761154U (en) * | 2014-03-07 | 2014-08-06 | 北京金风科创风电设备有限公司 | Stator support |
| CN203933179U (en) * | 2014-06-03 | 2014-11-05 | 北京天源科创风电技术有限责任公司 | A kind of generator unit stator support and apply it directly drive air blast cooling wind-driven generator |
-
2014
- 2014-06-03 CN CN201410240891.8A patent/CN103986253A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110004803A (en) * | 2010-09-27 | 2011-01-14 | 김덕보 | Wind power apparatus |
| CN203761154U (en) * | 2014-03-07 | 2014-08-06 | 北京金风科创风电设备有限公司 | Stator support |
| CN203933179U (en) * | 2014-06-03 | 2014-11-05 | 北京天源科创风电技术有限责任公司 | A kind of generator unit stator support and apply it directly drive air blast cooling wind-driven generator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108054843A (en) * | 2017-12-29 | 2018-05-18 | 东方电气集团东方电机有限公司 | A kind of bulb through-flow electricity generator stator stand structure |
| CN108054843B (en) * | 2017-12-29 | 2018-12-07 | 东方电气集团东方电机有限公司 | A kind of bulb through-flow electricity generator stator stand structure |
| CN110535260A (en) * | 2019-09-10 | 2019-12-03 | 浙江大学 | The stator module of motor |
| CN114157060A (en) * | 2020-09-07 | 2022-03-08 | 新疆金风科技股份有限公司 | Stator support, motor stator and motor |
| CN114157060B (en) * | 2020-09-07 | 2023-12-26 | 金风科技股份有限公司 | Stator support, motor stator and motor |
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Application publication date: 20140813 |