CN204200489U - The wheel hub of wind-driven generator - Google Patents
The wheel hub of wind-driven generator Download PDFInfo
- Publication number
- CN204200489U CN204200489U CN201420681294.4U CN201420681294U CN204200489U CN 204200489 U CN204200489 U CN 204200489U CN 201420681294 U CN201420681294 U CN 201420681294U CN 204200489 U CN204200489 U CN 204200489U
- Authority
- CN
- China
- Prior art keywords
- section
- wheel hub
- revolution
- rotating shaft
- adpting flange
- 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.)
- Active
Links
- 239000007787 solid Substances 0.000 claims abstract description 17
- 230000007704 transition Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 5
- 238000005266 casting Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- Y02E10/722—
Landscapes
- Wind Motors (AREA)
Abstract
The utility model provides a kind of wheel hub of wind-driven generator, it comprises hub body and the pitch variable bearings flange cylindrical body be arranged in hub body and rotating shaft adpting flange, hub body is hollow solid of rotation, the revolution section of hollow solid of rotation is formed by inside and outside two revolution curves, in the same circumferential position of revolution section, the center of circle of inside and outside two revolution curves is identical, wherein, the semidiameter near inside and outside two revolution curves of rotating shaft adpting flange is larger than the semidiameter of inside and outside two the revolution curves away from rotating shaft adpting flange.The wheel hub of wind-driven generator of the present utility model, its hub body is hollow solid of rotation, its forming mode is made simply, conveniently to carry out Parametric designing, further, the wall thickness of the hub body near rotating shaft adpting flange is comparatively large, thus can meet the high load demand near rotating shaft adpting flange, and away from rotating shaft adpting flange part, the wall thickness of hub body is less, thus can save material, improves the utilization ratio of material.
Description
Technical field
The utility model relates to a kind of wheel hub of wind-driven generator, belongs to wind power generation field.
Background technique
In wind-driven generator, wheel hub is the vitals connecting blade and moving axis, and it bears wind-force and acts on thrust, moment of torsion and moment of flexure on blade, is delivered in generator by the force and moment of impeller.Wheel hub bearing load is complicated and changeable, and as the core component of blower fan, the design performance of wheel hub directly affects the performance of wind-driven generator.Wheel hub generally adopts casting structure, and common wheel hub structure has spherical and trident.
For the hollow ball shape wheel hub of existing routine, the outer sphere of hollow wheel hub and the concyclic heart of interior spheroid, wheel hub uniform wall thickness, and in the work of reality, wheel hub and rotating shaft connection side stressed comparatively large, in order to meet the requirement of strength of wheel hub, wheel hub wall thickness is thicker, cause hub weight large, casting difficulty of processing is large, waste material.
For existing trident wheel hub, curved surface between trident adopts modeling of free form, can according to the stress of diverse location and fatigue damage situation determination Thickness Distribution, but this modeling forming mode is complicated, model is not easy to amendment, cannot parameter designing be carried out, therefore cannot carry out parameter optimization in the design.
Model utility content
The object of embodiment of the present utility model is to provide a kind of forming mode simply, conveniently to carry out Parametric designing and the wheel hub of the high wind-driven generator of stock utilization.
To achieve these goals, the utility model provides a kind of wheel hub of wind-driven generator, it comprises hub body and the pitch variable bearings flange cylindrical body be arranged in hub body and rotating shaft adpting flange, described hub body is hollow solid of rotation, the revolution section of this hollow solid of rotation is formed by inside and outside two revolution curves, in the same circumferential position of described revolution section, the center of circle of described inside and outside two revolution curves is identical, wherein, semidiameter near described inside and outside two revolution curves of described rotating shaft adpting flange is larger than the semidiameter of described inside and outside two the revolution curves away from described rotating shaft adpting flange.
Further, described revolution section comprises the first section, the second section and the 3rd section that connect successively, described first section is near described rotating shaft adpting flange, the semidiameter of inside and outside two articles of revolution curves that described first section, the second section and the 3rd section are corresponding is followed successively by T1, T2 and T3, wherein, T1 > T2 > T3, described T1 and T3 is fixed value, described T2 is progressively changed to T3 from T1, makes the second section form arc transition between the first section and the 3rd section.
Further, the center of circle that described first section, described second section and described 3rd section are corresponding is on the spin axis of wheel hub.
Further, described wheel hub be centrally located on described spin axis, described first section and the center of circle corresponding to described 3rd section are positioned at fixed position, the both sides place at the center of described wheel hub.
Further, described pitch variable bearings flange cylindrical body is provided with the pitch variable bearings flanged surface web of the ring connected with the inwall of described pitch variable bearings flange cylindrical body.
Further, the inner circumference of described pitch variable bearings flanged surface web is provided with web flange stiffening rib.
The wheel hub of wind-driven generator of the present utility model, its hub body is hollow solid of rotation, the revolution section of hollow solid of rotation is formed by inside and outside two revolution curves, make its forming mode simple, conveniently carry out Parametric designing, and, in the global design of hub body, the wall thickness of the hub body near rotating shaft adpting flange is larger, thus the high load demand that can meet near rotating shaft adpting flange, and away from rotating shaft adpting flange part, the wall thickness of hub body is less, thus can material be saved, ensureing under the prerequisite that wheel hub self-strength requires like this, improve the utilization ratio of material.
Accompanying drawing explanation
Fig. 1 is the perspective view of the wheel hub of the wind-driven generator of the utility model embodiment;
Fig. 2 is the cross-sectional view of the wheel hub of the wind-driven generator of the utility model embodiment;
Fig. 3 is the structural representation of the revolution section of the wheel hub of the wind-driven generator of the utility model embodiment.
Description of reference numerals
2-hub body; 3-pitch variable bearings flange cylindrical body; 4-pitch variable bearings flanged surface web; 5-web flange stiffening rib; 6-rotating shaft adpting flange; 7-passes in and out blade manhole; 8-passes in and out wheel hub manhole.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described in detail.
As shown in Figure 1, it is the perspective view of the wheel hub of the wind-driven generator of the utility model embodiment, the wheel hub of the utility model embodiment comprises hub body 2 and the pitch variable bearings flange cylindrical body 3 be arranged in hub body and rotating shaft adpting flange 6, hub body 2 is hollow solid of rotation, the revolution section of hollow solid of rotation is formed by inside and outside two revolution curves, in the same circumferential position of revolution section, the center of circle of inside and outside two revolution curves is identical, wherein, semidiameter near inside and outside two revolution curves of rotating shaft adpting flange is larger than the semidiameter of inside and outside two the revolution curves away from rotating shaft adpting flange, hub body 2 wall thickness near rotating shaft adpting flange is made to be greater than hub body 2 wall thickness away from rotating shaft adpting flange by such design.
At the position near rotating shaft adpting flange 6, the load that wheel hub bears is maximum, therefore, herein the wall thickness of hub body 2 is designed relatively large, and away from rotating shaft adpting flange 6 place, such as, in the part near turnover wheel hub manhole 8, the load that this place is born is relatively little, and hub body 2 can adopt thinner wall thickness, thus improves the utilization ratio of material in the global design of wheel hub.In addition, hub body adopts the form of hollow solid of rotation to be shaped, and compared with the wheel hub be shaped with free form surface in the past, the forming mode of wheel hub is simple, can realize parametrization, be convenient to carry out parameter optimization design, be convenient to carry out detecting and measuring simultaneously.
As shown in Figure 2, it is the cross-sectional view of the wheel hub of the wind-driven generator of the utility model embodiment, preferably, the wall thickness of hub body 2 can be divided into three sections, from revolution section, comprise the first section connected successively, second section and the 3rd section, first section is near rotating shaft adpting flange 6, first section, second section and the 3rd section corresponding inside and outside two articles revolution curves semidiameters be followed successively by T1, T2 and T3 (i.e. the wall thickness of hub body 2), wherein, T1 > T2 > T3.Because the first section is near rotating shaft adpting flange, its load is maximum, therefore, the wall thickness T 1 of solid of rotation is relatively large herein, and in the side of the turnover wheel hub manhole 8 away from rotating shaft adpting flange 6, load is relatively little, then the wall thickness T 3 of solid of rotation is relatively little herein, the load of intermediate portion is between other two sections, and therefore, wall thickness T 2 is between T1 and T3.Preferably, T1 and T3 is fixed value, and T2 is progressively changed to T3 from T1, makes the second section form arc transition between the first section and the 3rd section.Further, as shown in Figure 3, the center of circle that the first section, the second section and the 3rd section are corresponding can be on the spin axis of wheel hub, is namely positioned on the axis of the rotating shaft be connected with fan engine room, like this in the working procedure of blower fan, whole wheel hub can keep balance.Wherein, the center of wheel hub can be positioned on spin axis, first section and the center of circle corresponding to the 3rd section can be positioned at fixed position, the both sides place at center, particularly, as shown in Figure 3, at close rotating shaft adpting flange side and the concentric circle devising different radii difference away from rotating shaft adpting flange side, the concentrically ringed center of circle is positioned on spin axis, and these concentric circles constitute the first to the 3rd above-mentioned section.Wherein, first section respective radius is the concentric circle of R1 and R2, the distance that its center of circle is positioned at apart from hub centre O is the position of L1,3rd section respective radius is R3 and R4 place, the distance that its center of circle is positioned at apart from hub centre O is the position of L2, from the tangent transition point (A1, A2, B1, B2 point in Fig. 3) shown in figure, form the 3rd section, the naturally tangent transition shaping of two circular arcs of the 3rd section.As can be seen from the figure, concentrically ringed semidiameter near rotating shaft adpting flange side is larger, thus, the wall thickness of the solid of rotation be herein rotarily formed also will be larger, meet the trend that load is herein large, and smaller away from the concentrically ringed semidiameter of rotating shaft adpting flange side, the wall thickness of the solid of rotation be therefore herein rotarily formed also will be smaller, meets the trend that load is herein little.Middle junction curve is then by being formed with the transition of both sides circular arc nature, and the cross section of several curve formation is turned round around spin axis, forms hollow solid of rotation.
In addition, embodiment of the present utility model, except the improvement in above-mentioned hub body, has also carried out Curve guide impeller at pitch variable bearings flange cylindrical body.As depicted in figs. 1 and 2, in embodiment of the present utility model, pitch variable bearings flange cylindrical body is provided with the pitch variable bearings flanged surface web 4 of the ring connected with the inwall of pitch variable bearings flange cylindrical body.Effectively can strengthen the performance of wheel hub by designing strengthening web on pitch variable bearings connecting flange faces, avoiding needing increase wheel hub wall thickness or increase pitch variable bearings flange thickness for improving performance, thus alleviating the overall weight of wheel hub.Offer blade manhole 7 at the middle part of pitch variable bearings flanged surface web, personnel can be facilitated like this to enter blade.In addition, in order to improve the integral rigidity of web further, one-body moldedly on the inner circumference of pitch variable bearings flanged surface web 4 web flange stiffening rib 5 can also be had.
The above; be only embodiment of the present utility model; but protection domain 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 domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (6)
1. the wheel hub of a wind-driven generator, it is characterized in that, the pitch variable bearings flange cylindrical body comprising hub body and be arranged in hub body and rotating shaft adpting flange, described hub body is hollow solid of rotation, the revolution section of this hollow solid of rotation is formed by inside and outside two revolution curves, in the same circumferential position of described revolution section, the center of circle of described inside and outside two revolution curves is identical, wherein, the semidiameter near described inside and outside two revolution curves of described rotating shaft adpting flange is larger than the semidiameter of described inside and outside two the revolution curves away from described rotating shaft adpting flange.
2. wheel hub according to claim 1, it is characterized in that, described revolution section comprises the first section connected successively, second section and the 3rd section, described first section is near described rotating shaft adpting flange, described first section, second section and the 3rd section corresponding inside and outside two articles revolution curves semidiameters be followed successively by T1, T2 and T3, wherein, T1 > T2 > T3, described T1 and T3 is fixed value, described T2 is progressively changed to T3 from T1, the second section is made to form arc transition between the first section and the 3rd section.
3. wheel hub according to claim 2, is characterized in that, the center of circle that described first section, described second section and described 3rd section are corresponding is on the spin axis of wheel hub.
4. wheel hub according to claim 3, is characterized in that, described wheel hub be centrally located on described spin axis, described first section and the center of circle corresponding to described 3rd section are positioned at fixed position, the both sides place at the center of described wheel hub.
5., according to the arbitrary described wheel hub of Claims 1-4, it is characterized in that, described pitch variable bearings flange cylindrical body is provided with the pitch variable bearings flanged surface web of the ring connected with the inwall of described pitch variable bearings flange cylindrical body.
6. wheel hub according to claim 5, is characterized in that, one-body molded on the inner circumference of described pitch variable bearings flanged surface web have web flange stiffening rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681294.4U CN204200489U (en) | 2014-11-10 | 2014-11-10 | The wheel hub of wind-driven generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681294.4U CN204200489U (en) | 2014-11-10 | 2014-11-10 | The wheel hub of wind-driven generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200489U true CN204200489U (en) | 2015-03-11 |
Family
ID=52658453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420681294.4U Active CN204200489U (en) | 2014-11-10 | 2014-11-10 | The wheel hub of wind-driven generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200489U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387311A (en) * | 2017-08-22 | 2017-11-24 | 无锡风电设计研究院有限公司 | A kind of wind-power electricity generation split wheel hub |
| CN109072869A (en) * | 2016-05-10 | 2018-12-21 | 乌本产权有限公司 | Wind energy facility rotor blade and wind energy facility with wind energy facility rotor blade |
| CN109139394A (en) * | 2018-10-31 | 2019-01-04 | 北京金风科创风电设备有限公司 | Hub and impeller of wind generating set and mounting method of variable pitch control component |
| CN111502908A (en) * | 2019-01-31 | 2020-08-07 | 西门子歌美飒可再生能源公司 | Hub for a wind turbine, wind turbine and method for upgrading a hub of a wind turbine |
| CN112177844A (en) * | 2020-10-14 | 2021-01-05 | 内蒙古工业大学 | Hub structure of small variable-pitch wind turbine and mounting method |
| CN113464385A (en) * | 2021-07-26 | 2021-10-01 | 三一重能股份有限公司 | Wind driven generator hub structure and wind driven generator |
-
2014
- 2014-11-10 CN CN201420681294.4U patent/CN204200489U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109072869A (en) * | 2016-05-10 | 2018-12-21 | 乌本产权有限公司 | Wind energy facility rotor blade and wind energy facility with wind energy facility rotor blade |
| CN107387311A (en) * | 2017-08-22 | 2017-11-24 | 无锡风电设计研究院有限公司 | A kind of wind-power electricity generation split wheel hub |
| CN109139394A (en) * | 2018-10-31 | 2019-01-04 | 北京金风科创风电设备有限公司 | Hub and impeller of wind generating set and mounting method of variable pitch control component |
| CN109139394B (en) * | 2018-10-31 | 2021-02-26 | 北京金风科创风电设备有限公司 | Hub and impeller of wind generating set and mounting method of variable pitch control component |
| CN111502908A (en) * | 2019-01-31 | 2020-08-07 | 西门子歌美飒可再生能源公司 | Hub for a wind turbine, wind turbine and method for upgrading a hub of a wind turbine |
| CN112177844A (en) * | 2020-10-14 | 2021-01-05 | 内蒙古工业大学 | Hub structure of small variable-pitch wind turbine and mounting method |
| CN113464385A (en) * | 2021-07-26 | 2021-10-01 | 三一重能股份有限公司 | Wind driven generator hub structure and wind driven generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204200489U (en) | The wheel hub of wind-driven generator | |
| US8449263B2 (en) | Segmented rotor hub assembly | |
| CN102207059B (en) | Wind turbine, tower and method for fabricating the same | |
| CN102287320B (en) | With the wind turbine blade linkage structure of flat bolt | |
| JP5546625B2 (en) | Wind turbine | |
| US9074581B2 (en) | Cone angle insert for wind turbine rotor | |
| US20140003946A1 (en) | Cone angle insert for wind turbine rotor | |
| CN102374194A (en) | Axial flow wind wheel | |
| CN106523304A (en) | Reinforced bearing of a wind turbine | |
| CN201433854Y (en) | Helical flexible blade turbine | |
| CN205446397U (en) | Antifriction bearing with radial permanent magnetism suspension additional bearing | |
| CN103147932A (en) | Improved connection structure for WTGS (wind turbine generator system) tower and basic connection transition section | |
| CN103321831B (en) | A kind of inside and outside wind power generator wind wheel by the power trinity | |
| CN202165212U (en) | Wind wheel structure of vertical axis wind turbine | |
| CN201953566U (en) | Blade adjusting device of wind driven generator and wind driven generator comprising same | |
| CN201747640U (en) | Fan | |
| CN214616868U (en) | Wind wheel device and wind generating set | |
| CN111535989A (en) | Horizontal shaft wind driven generator | |
| CN113153623A (en) | Wind wheel device and wind generating set | |
| CN218760960U (en) | Become oar bearing and wind generating set | |
| CN203201728U (en) | Improved type connecting structure of wind generating set tower cylinder and base connecting transition section | |
| CN201874759U (en) | Enhanced hub of wind generating set | |
| CN206404735U (en) | A kind of modified granulator ring mode structure | |
| CN100526656C (en) | Automobile engine cooling fan | |
| CN207111289U (en) | A kind of hydroelectric generator being easily installed |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |