CN204538851U - Wind-driven generator and bearing support structure thereof - Google Patents
Wind-driven generator and bearing support structure thereof Download PDFInfo
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- CN204538851U CN204538851U CN201520278028.1U CN201520278028U CN204538851U CN 204538851 U CN204538851 U CN 204538851U CN 201520278028 U CN201520278028 U CN 201520278028U CN 204538851 U CN204538851 U CN 204538851U
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Abstract
The utility model provides a kind of wind-driven generator and bearing support structure thereof, wherein, bearing support structure comprises oar side bearing, tower side bearing, dead axle, the rotor of wind-driven generator and the stator of wind-driven generator, wind-driven generator is external rotor internal stator structure, the inner ring of oar side bearing is fixedly connected with one end, oar side of dead axle, the outer ring of oar side bearing is fixedly connected with wheel hub, the two ends of the inner ring of tower side bearing are fixedly connected with one end, tower side of dead axle with the base of wind-driven generator respectively, stator is fixed on dead axle by least two group first support arms, rotor is fixed on the outer ring of oar side bearing and the outer ring of tower side bearing by two group of second support arm.The bearing support structure of wind-driven generator of the present utility model, can make the fluctuation air gap between the rotor of wind-driven generator and stator more stable, and can reduce the overall weight of wind-driven generator, and then reduce the load of bearing.
Description
Technical field
The utility model relates to a kind of supporting construction, particularly relates to a kind of wind-driven generator and bearing support structure thereof.
Background technology
The kinetic energy in wind-force caught by modern wind generator by impeller (being usually made up of multiple blade, multiple pitch variable bearings, pitch-controlled system and a wheel hub), and convert it into electric energy by wind-driven generator.Common wind-driven generator has two kinds of forms, and one is between impeller and generator, use gear box to connect, and another kind is that impeller is directly connected with generator.The latter, as direct-drive aerogenerator, owing to not using the acceleration equipments such as gear box, greatly reduces failure rate and the maintenance cost of wind-driven generator.
During direct-drive aerogenerator work, need to ensure that the air gap between the rotor of generator and stator remains within the scope of an acceptable.In prior art, the stators and rotators of direct-drive aerogenerator has a collateral support of coverlet at least, and this support arm just needs to be designed to the larger structure of ratio of rigidity for this reason.Thus, can bring the problem of two aspects: generator weight is heavier on the one hand, higher to the load bearing requirements of base bearing, along with popularizing of high-power wind-driven generator, the problem of load bearing requirements highlights all the more.The cost compares such as the on the other hand production of wind-driven generator, transport, lifting and maintenance are high.
Utility model content
The object of the utility model embodiment is to provide a kind of wind-driven generator and bearing support structure thereof, when meeting the demands with the fluctuation air gap between the rotor and stator of generator, reduces the weight of direct-drive aerogenerator, simplifies assembling process.
For achieving the above object, the utility model provides a kind of bearing support structure of wind-driven generator, it comprises oar side bearing, tower side bearing, dead axle, the rotor of wind-driven generator and the stator of wind-driven generator, and described wind-driven generator is external rotor internal stator structure; The inner ring of described oar side bearing is fixedly connected with one end, oar side of described dead axle, the outer ring of described oar side bearing is fixedly connected with described wheel hub, and the two ends of the inner ring of described tower side bearing are fixedly connected with one end, tower side of described dead axle with the base of wind-driven generator respectively; Described stator is fixed on described dead axle by least two group first support arms; Described rotor is fixed on the outer ring of described oar side bearing and the outer ring of described tower side bearing by two group of second support arm.
The utility model provides a kind of bearing support structure of wind-driven generator, comprises oar side bearing, tower side bearing, dead axle, the rotor of wind-driven generator and the stator of wind-driven generator, and described wind-driven generator is external rotor internal stator structure; Described oar side bearing and described tower side bearing are set on described dead axle, and the outer ring of described oar side bearing is fixedly connected with described wheel hub, and one end, tower side of described dead axle is fixedly connected with the base of described wind-driven generator; Described stator is fixed on described dead axle by least two group first support arms; Described rotor is fixed on the outer ring of described oar side bearing and the outer ring of described tower side bearing by two group of second support arm.
The utility model provides a kind of bearing support structure of wind-driven generator, comprises oar side bearing, tower side bearing, moving axis, the rotor of wind-driven generator and the stator of wind-driven generator, and described wind-driven generator is external stator inner rotor core; The two ends of the inner ring of described oar side bearing are fixedly connected with one end, oar side of described moving axis with wheel hub respectively, the inner ring of described tower side bearing is fixedly connected with one end, tower side of described moving axis, and the outer ring of described tower side bearing is fixedly connected with the base of described wind-driven generator; Described rotor is fixed on described moving axis by least two group first support arms; Described stator is fixed on the outer ring of described oar side bearing and the outer ring of described tower side bearing by two group of second support arm.
The utility model provides a kind of bearing support structure of wind-driven generator, comprises oar side bearing, tower side bearing, moving axis, the rotor of wind-driven generator and the stator of wind-driven generator, and described wind-driven generator is external stator inner rotor core; Described oar side bearing and described tower side bearing are set on described moving axis, and the inner ring of described oar side bearing is fixedly connected with wheel hub, and the outer ring of described tower side bearing is fixedly connected with the base of described wind-driven generator; Described rotor is fixed on described moving axis by least two group first support arms; Described stator is fixed on the outer ring of described oar side bearing and the outer ring of described tower side bearing by two group of second support arm.
Further, the oar side bearing described in above-mentioned any one is double-row conical bearing or three-row cylindrical roller bearing, and described tower side bearing is single row roller bearing or Biserial cylindrical roller bearing.
Further, the first support arm described in above-mentioned any one and the second described support arm are made up of doughnut-shaped steel plate.
In addition, the utility model additionally provides a kind of wind-driven generator, comprises the bearing support structure of as above arbitrary described wind-driven generator.
Wind-driven generator of the present utility model and bearing support structure thereof, have employed the layout of the drive system of duplex bearing, the both sides of the stators and rotators of generator have support arm respectively, and such supporting mechanism makes the fluctuation air gap between the rotor of wind-driven generator and stator more stable.In addition, bi-lateral support structure can reduce the overall weight of support arm structure, thus also reduces the overall weight of wind-driven generator, and then reduces the load of bearing.In addition, bi-lateral support structure also reasonably can disperse the load of wind-driven generator, extends the useful life of bearing further.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bearing support structure of the utility model embodiment one;
Fig. 2 is the structural representation of the bearing support structure of the utility model embodiment two;
Fig. 3 is the structural representation of the bearing support structure of the utility model embodiment three;
Fig. 4 is the structural representation of the bearing support structure of the utility model embodiment four.
Drawing reference numeral illustrates:
1-starches side bearing; 2-tower side bearing; 3-dead axle; 4-rotor; 5-stator; 6-wheel hub; 7-base; 8-first support arm; 9-second support arm; 10-impeller; 101-blade; 102-pitch variable bearings; 11-goes off course bearing; 12-pylon; 13-moving axis.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
The bearing support structure of wind-driven generator of the present utility model, by designing the power train layout of duplex bearing, fluctuation air gap between the rotor and stator of generator meets the demands, reduce the weight of support arm, decrease the use amount of bearing, thus reduce the weight of direct-drive aerogenerator, simplify assembling process, reduce costs.
Embodiment one
As shown in Figure 1, it is the structural representation of the bearing support structure of the utility model embodiment one.In figure, left side is slurry side, and right side is tower side.The bearing support structure of the wind-driven generator of the utility model embodiment, comprises oar side bearing 1, tower side bearing 2, dead axle 3, the rotor 4 of wind-driven generator and the stator 5 of wind-driven generator, and wind-driven generator is external rotor internal stator structure.The inner ring of oar side bearing 1 is fixedly connected with one end, oar side of dead axle 3, and the outer ring of oar side bearing 1 is fixedly connected with wheel hub 6, and the two ends of the inner ring of tower side bearing 2 are fixedly connected with one end, tower side of dead axle 3 with the base 7 of wind-driven generator respectively.Stator 5 is fixed on dead axle 3 by least two group first support arms 8.Rotor 4 is fixed on the outer ring of oar side bearing 1 and the outer ring of tower side bearing 2 by two group of second support arm 9.Wherein, the first support arm 8 of the utility model embodiment is preferably two groups, and two group of first support arm 8 and the second support arm 9 lay respectively at the both sides of stator 5 and rotor 4.
Embodiment of the present utility model is by the power train arrangement of a kind of duplex bearing (slurry side bearing 1 and tower side bearing 2), the stator 5 of wind-driven generator and the both sides of rotor 4 are made to have support arm respectively, under air gap when ensureing that direct-drive aerogenerator runs between generator amature 4 and generator unit stator 5 changes less prerequisite, the overall weight of support arm can be reduced, thus the overall weight of wind-driven generator is reduced, reduce the load of bearing, decrease manufacturing cost.
In said structure, the blade 101 of wind-driven generator is bolted and is fixed on pitch variable bearings 102, and pitch variable bearings 102 is connected on wheel hub 6.Wheel hub 6 be bolted be fixed on slurry side bearing 1 outer ring on, the stator 5 of wind-driven generator is fixed on above-mentioned dead axle 3 by two group of first support arm 8, the rotor 4 of wind-driven generator is fixed on the slurry outer ring of side bearing 1 and the outer ring of tower side bearing 2 by two group of second support arm 9, above-mentioned blade 101, pitch variable bearings 102, wheel hub 6 and corresponding pitch-controlled system form impeller 10 jointly, and impeller 10 drives the rotor 4 of wind-driven generator to rotate.The slurry inner ring of side bearing 1 and the inner ring of tower side bearing 2 are separately fixed at one end, slurry side and one end, tower side of dead axle 3, and the inner ring of tower side bearing 2 is also fixed on the base 7 of wind-driven generator.Base 7 is connected with pylon 12 by driftage bearing 11.
Preferably, the first above-mentioned support arm 8 and the second support arm 9 can be made up of doughnut-shaped steel plate, like this, when meeting support arm load bearing requirements, reducing the weight of support arm, reducing the transport of wind-driven generator, hoisting cost, econmics comparison is good, reduces assembly difficulty.
In addition, in order to the load bearing requirements making bearing meet relevant position, oar side bearing 1 can be double-row conical bearing, also can be three-row cylindrical roller bearing, and tower side bearing 2 can be single row roller bearing, also can be Biserial cylindrical roller bearing.
Embodiment two
As shown in Figure 2, it is the structural representation of the bearing support structure of the utility model embodiment two.As the interchangeable scheme of one, the bearing support structure of the wind-driven generator that the utility model embodiment provides and the main distinction of embodiment one are: oar side bearing 1 and tower side bearing 2 are set on dead axle 3, the outer ring of oar side bearing 1 is fixedly connected with wheel hub 6, and one end, tower side of dead axle 3 is fixedly connected with the base 7 of wind-driven generator.Stator 5 is fixed on dead axle 3 by least two group first support arms 8.Rotor 4 can be fixed on the outer ring of oar side bearing 1 and the outer ring of tower side bearing 2 by two group of second support arm 9.
Embodiment three
As shown in Figure 3, it is the structural representation of the bearing support structure of the utility model embodiment three.As a kind of alternative, the bearing support structure that embodiment still provides a kind of wind-driven generator of the present utility model, comprise oar side bearing 1, tower side bearing 2, moving axis 13, the rotor 4 of wind-driven generator and the stator 5 of wind-driven generator, wind-driven generator is external stator inner rotor core; The two ends of the inner ring of oar side bearing 1 are fixedly connected with one end, oar side of moving axis 13 with wheel hub 6 respectively, and the inner ring of tower side bearing 2 is fixedly connected with one end, tower side of moving axis 13, and the outer ring of tower side bearing 2 is fixedly connected with the base 7 of wind-driven generator; Rotor 4 is fixed on moving axis 13 by least two group first support arms 8; Stator 5 is fixed on the outer ring of oar side bearing 1 and the outer ring of tower side bearing 2 by two group of second support arm 9.
Embodiment of the present utility model is by the power train arrangement of a kind of duplex bearing (slurry side bearing 1 and tower side bearing 2), the stator 5 of wind-driven generator and the both sides of rotor 4 are made to have support arm respectively, under air gap when ensureing that direct-drive aerogenerator runs between generator amature 4 and generator unit stator 5 changes less prerequisite, the overall weight of support arm can be reduced, thus the overall weight of wind-driven generator is reduced, reduce the load of bearing, decrease manufacturing cost.
In said structure, the blade 101 of wind-driven generator is bolted and is fixed on pitch variable bearings 102, and pitch variable bearings 102 is connected on wheel hub 6, and wheel hub 6 is connected by the inner ring of bolt with slurry side bearing 1.The rotor 4 of wind-driven generator is positioned at the inside of stator 5.The rotor 4 of wind-driven generator is fixed on above-mentioned moving axis 13 by two group of first support arm 8, the stator 5 of wind-driven generator is connected with the outer ring of tower side bearing 2 with slurry side bearing 1 respectively by two group of second support arm 9, the outer ring of tower side bearing 2 is fixed on base 7, and the slurry inner ring of side bearing 1 and the inner ring of tower side bearing 2 are separately fixed at one end, slurry side and one end, tower side of moving axis 13.Above-mentioned blade 101, pitch variable bearings 102, wheel hub 6 and corresponding pitch-controlled system form impeller 10 jointly, and impeller 10 drives the rotor 4 of wind-driven generator to rotate.
Preferably, the first above-mentioned support arm 8 and the second support arm 9 can be made up of doughnut-shaped steel plate.When meeting support arm load bearing requirements, reducing the weight of support arm, reducing the transport of wind-driven generator, hoisting cost, econmics comparison is good, reduces assembly difficulty.
In addition, in order to make bearing meet corresponding load bearing requirements, oar side bearing 1 can be double-row conical bearing, also can be three-row cylindrical roller bearing, and tower side bearing 2 can be single row roller bearing, also can be Biserial cylindrical roller bearing.
Embodiment four
As shown in Figure 4, it is the structural representation of the bearing support structure of the utility model embodiment four.As the interchangeable scheme of one, the bearing support structure of the wind-driven generator that the utility model embodiment provides and the main distinction of embodiment three are: oar side bearing 1 and tower side bearing 2 are set on moving axis 13, the inner ring of oar side bearing 1 is fixedly connected with wheel hub 6, and the outer ring of tower side bearing 2 is fixedly connected with the base 7 of wind-driven generator; Rotor 4 is fixed on moving axis 13 by least two group first support arms 8; Stator 5 is fixed on the outer ring of oar side bearing 1 and the outer ring of tower side bearing 2 by two group of second support arm 9.
In addition, the utility model additionally provides a kind of wind-driven generator, comprises the bearing support structure of the wind-driven generator of above any embodiment.
In sum, wind-driven generator of the present utility model and bearing support structure tool thereof have the following advantages:
1, have employed the layout of the drive system of duplex bearing, the both sides of the stators and rotators of generator have support arm respectively, and such supporting mechanism makes the fluctuation air gap between the rotor of wind-driven generator and stator more stable.
2, bi-lateral support structure can reduce the overall weight of support arm structure, thus also reduces the overall weight of wind-driven generator, and then reduces the load of bearing.Bi-lateral support structure also reasonably can disperse the load of wind-driven generator, extends the useful life of bearing further.
3, support arm adopts doughnut-shaped steel plate to form.When meeting support arm load bearing requirements, reduce further the weight of support arm, reducing the transport of wind-driven generator, hoisting cost, econmics comparison is good, reduces assembly difficulty.
The above; be only embodiment of the present utility model; but protection range of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range of described claim.
Claims (7)
1. the bearing support structure of a wind-driven generator, comprise oar side bearing (1), tower side bearing (2), dead axle (3), the rotor (4) of wind-driven generator and the stator (5) of wind-driven generator, it is characterized in that, described wind-driven generator is external rotor internal stator structure;
The inner ring of described oar side bearing (1) is fixedly connected with one end, oar side of described dead axle (3), the outer ring of described oar side bearing (1) is fixedly connected with described wheel hub (6), and the two ends of the inner ring of described tower side bearing (2) are fixedly connected with one end, tower side of described dead axle (3) with the base (7) of wind-driven generator respectively;
Described stator (5) is fixed on described dead axle (3) by least two group first support arms (8);
Described rotor (4) is fixed on the outer ring of described oar side bearing (1) and the outer ring of described tower side bearing (2) by two group of second support arm (9).
2. the bearing support structure of a wind-driven generator, comprise oar side bearing (1), tower side bearing (2), dead axle (3), the rotor (4) of wind-driven generator and the stator (5) of wind-driven generator, it is characterized in that, described wind-driven generator is external rotor internal stator structure;
Described oar side bearing (1) and described tower side bearing (2) are set on described dead axle (3), the outer ring of described oar side bearing (1) is fixedly connected with described wheel hub (6), and one end, tower side of described dead axle (3) is fixedly connected with the base (7) of described wind-driven generator;
Described stator (5) is fixed on described dead axle (3) by least two group first support arms (8);
Described rotor (4) is fixed on the outer ring of described oar side bearing (1) and the outer ring of described tower side bearing (2) by two group of second support arm (9).
3. the bearing support structure of a wind-driven generator, comprise oar side bearing (1), tower side bearing (2), moving axis (13), the rotor (4) of wind-driven generator and the stator (5) of wind-driven generator, it is characterized in that, described wind-driven generator is external stator inner rotor core;
The two ends of the inner ring of described oar side bearing (1) are fixedly connected with one end, oar side of described moving axis (13) with wheel hub (6) respectively, the inner ring of described tower side bearing (2) is fixedly connected with one end, tower side of described moving axis (13), and the outer ring of described tower side bearing (2) is fixedly connected with the base (7) of described wind-driven generator;
Described rotor (4) is fixed on described moving axis (13) by least two group first support arms (8);
Described stator (5) is fixed on the outer ring of described oar side bearing (1) and the outer ring of described tower side bearing (2) by two group of second support arm (9).
4. the bearing support structure of a wind-driven generator, comprise oar side bearing (1), tower side bearing (2), moving axis (13), the rotor (4) of wind-driven generator and the stator (5) of wind-driven generator, it is characterized in that, described wind-driven generator is external stator inner rotor core;
Described oar side bearing (1) and described tower side bearing (2) are set on described moving axis (13), the inner ring of described oar side bearing (1) is fixedly connected with wheel hub (6), and the outer ring of described tower side bearing (2) is fixedly connected with the base (7) of described wind-driven generator;
Described rotor (4) is fixed on described moving axis (13) by least two group first support arms (8);
Described stator (5) is fixed on the outer ring of described oar side bearing (1) and the outer ring of described tower side bearing (2) by two group of second support arm (9).
5. the bearing support structure of the wind-driven generator according to claim 1-4 any one, it is characterized in that, described oar side bearing (1) is double-row conical bearing or three-row cylindrical roller bearing, and described tower side bearing (2) is single row roller bearing or Biserial cylindrical roller bearing.
6. the bearing support structure of the wind-driven generator according to claim 1-4 any one, is characterized in that, described first support arm (8) and described second support arm (9) are made up of doughnut-shaped steel plate.
7. a wind-driven generator, comprise as arbitrary in claim 1 to 6 as described in the bearing support structure of wind-driven generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278028.1U CN204538851U (en) | 2015-04-30 | 2015-04-30 | Wind-driven generator and bearing support structure thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520278028.1U CN204538851U (en) | 2015-04-30 | 2015-04-30 | Wind-driven generator and bearing support structure thereof |
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| CN204538851U true CN204538851U (en) | 2015-08-05 |
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| CN201520278028.1U Active CN204538851U (en) | 2015-04-30 | 2015-04-30 | Wind-driven generator and bearing support structure thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305708A (en) * | 2015-10-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Motor, wind generating set and rigidity adjusting device |
| CN105464899A (en) * | 2015-12-15 | 2016-04-06 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN109826764A (en) * | 2019-03-13 | 2019-05-31 | 浙江大学 | Bearing cooler and wind-driven generator including it |
| CN109973313A (en) * | 2017-12-27 | 2019-07-05 | 威海银河风力发电有限公司 | A kind of direct-drive permanent magnet wind power generator of no main shaft |
-
2015
- 2015-04-30 CN CN201520278028.1U patent/CN204538851U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105305708A (en) * | 2015-10-13 | 2016-02-03 | 北京金风科创风电设备有限公司 | Motor, wind generating set and rigidity adjusting device |
| CN105305708B (en) * | 2015-10-13 | 2018-07-31 | 北京金风科创风电设备有限公司 | Motor, wind generating set and rigidity adjusting device |
| CN105464899A (en) * | 2015-12-15 | 2016-04-06 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN105464899B (en) * | 2015-12-15 | 2018-07-31 | 北京金风科创风电设备有限公司 | Wind driven generator and wind driven generator set |
| CN109973313A (en) * | 2017-12-27 | 2019-07-05 | 威海银河风力发电有限公司 | A kind of direct-drive permanent magnet wind power generator of no main shaft |
| CN109826764A (en) * | 2019-03-13 | 2019-05-31 | 浙江大学 | Bearing cooler and wind-driven generator including it |
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Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee after: Jinfeng Technology Co.,Ltd. Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd. |