CN214196543U - Wind driven generator hub flexible structure and wind driven generator set - Google Patents
Wind driven generator hub flexible structure and wind driven generator set Download PDFInfo
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- CN214196543U CN214196543U CN202120284002.3U CN202120284002U CN214196543U CN 214196543 U CN214196543 U CN 214196543U CN 202120284002 U CN202120284002 U CN 202120284002U CN 214196543 U CN214196543 U CN 214196543U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The embodiment of the utility model provides a aerogenerator wheel hub flexible construction and aerogenerator group relates to the aerogenerator field. The impact on internal parts in the rotating process of the hub of the wind driven generator is relieved. It comprises a hub; the frame comprises a plurality of plates, the plates are sequentially arranged end to end along the circumferential direction of the hub to form a regular polygon, the plates are all positioned inside the hub, and at least part of the plates are used for mounting the control cabinet; and the two adjacent ends of the two adjacent plates are connected to the hub through the elastic connecting assemblies together. The wind generating set comprises a wind driven generator hub flexible structure. The frame is a three-dimensional regular polygonal cylinder and is connected to the hub through the elastic connecting assembly, and the frame can buffer the impact on the fan, parts mounted on the fan, such as a control cabinet, and electric elements inside the hub when the fan is in emergency stop as a whole. The elastic connection assembly can relieve fatigue damage to the frame when the hub rotates.
Description
Technical Field
The utility model relates to a aerogenerator field particularly, relates to an aerogenerator wheel hub flexible construction and aerogenerator group.
Background
The wind generating set is a large generating set which converts wind energy into electric energy through rotation of an impeller, and the wind generating set adjusts the blade angle of blades according to the change of wind speed by utilizing a variable pitch device so as to control the impeller to absorb the wind energy, so that the absorption rate of the wind energy is improved.
The driving power of the variable pitch system of most wind generating sets adopts a servo motor, and a variable pitch gear centralized lubricating system arranged in the hub and parts such as various sensor switches are adopted, so that a special electrical control cabinet is required in the hub.
At present, the wind generating set shakes very greatly in the operation process, and rigidity and stability are relatively poor when wheel hub rotates in the switch board, and wheel hub's vibrations cause the impact in transmitting the switch board easily to switch board and inside electrical component.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a wind driven generator wheel hub flexible construction, for example, it can alleviate wind driven generator wheel hub and rotate the impact of in-process to the internals.
The utility model discloses an aim still includes, provides a wind generating set, and it can alleviate the impact of aerogenerator wheel hub rotation in-process to the internals.
The embodiment of the utility model discloses a can realize like this:
an embodiment of the utility model provides a aerogenerator wheel hub flexible construction, include: a hub; the frame comprises a plurality of plates, the plates are sequentially arranged end to end along the circumferential direction of the hub to form a regular polygon, the plates are all positioned inside the hub, and at least part of the plates are used for mounting a control cabinet; and the two adjacent ends of the two adjacent plates are connected to the hub through the elastic connecting assemblies together.
Additionally, the embodiment of the utility model provides a aerogenerator wheel hub flexible construction can also have following additional technical characteristics:
optionally: the plurality of plates are all used for installing the control cabinet.
Optionally: two adjacent the board is mounting panel and landing slab respectively, the mounting panel is used for installing the switch board, the landing slab is used for providing the maintenance platform.
Optionally: the elastic connecting assembly comprises an elastic connecting plate, the elastic connecting plate comprises a first connecting plate, a second connecting plate and a third connecting plate which are sequentially connected, and the first connecting plate and the third connecting plate are symmetrically arranged relative to the second connecting plate;
two adjacent both ends of two the board adjacent set up respectively first connecting plate and on the third connecting plate, the second connecting plate with wheel hub is connected.
Optionally: the elastic connecting assembly further comprises a fourth connecting plate and a fifth connecting plate, and the first connecting plate, the fourth connecting plate, the second connecting plate, the fifth connecting plate and the third connecting plate are sequentially connected;
the fourth connecting plate and the fifth connecting plate are opposite to the second connecting plate and are symmetrically arranged, and the fourth connecting plate and the fifth connecting plate are respectively arranged at included angles with the second connecting plate, so that the first connecting plate and the third connecting plate are arranged in a staggered mode with the second connecting plate.
Optionally: the first connecting plate and the third connecting plate are coplanar, and the first connecting plate and the third connecting plate are both parallel to the second connecting plate.
Optionally: the elastic connecting plate is made of spring steel.
Optionally: the elastic connecting assembly further comprises a first support and a second support;
the first support is provided with a first connecting surface and a second connecting surface which are arranged at an included angle, and the first connecting surface is used for being attached and fixedly connected with the first connecting plate;
the second support is provided with a third connecting surface and a fourth connecting surface which are arranged at an included angle, and the third connecting surface is used for being attached and fixedly connected with the third connecting plate;
the second is connected the face with the fourth is connected the face and is used for respectively with adjacent two the outer wall laminating and the fixed connection of the adjacent both ends of board.
Optionally: the wind driven generator hub flexible structure further comprises a boss formed on the inner wall of the hub, the boss is provided with a mounting surface attached to the second connecting plate, and the mounting surface is fixedly connected with the second connecting plate.
The embodiment of the utility model also provides a wind generating set. The wind generating set comprises a wind driven generator hub flexible structure.
The utility model discloses aerogenerator wheel hub flexible construction and wind generating set's beneficial effect includes, for example:
the frame comprises a plurality of plates, the plates form a three-dimensional regular polygonal cylinder in a surrounding mode, the frame is connected to the hub through the elastic connecting assembly and is used as a whole, and the frame can buffer impact on the frame, parts mounted on the frame, such as a control cabinet and electric elements inside the hub when the fan is stopped emergently. The elastic connection assembly can relieve fatigue damage to the frame when the hub rotates.
The wind generating set comprises the wind driven generator hub flexible structure, and impact on internal components in the rotating process of the wind driven generator hub can be relieved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a wind turbine generator system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a hub flexible structure of a wind turbine provided in an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic structural diagram of an elastic connection assembly in a flexible structure of a hub of a wind turbine provided by an embodiment of the present invention.
Icon: 10-a wind generating set; 20-a wind driven generator hub flexible structure; 100-a hub; 200-a frame; 210-a mounting plate; 220-a platform plate; 300-a resilient connecting assembly; 310-a first connection plate; 311-a fourth connecting plate; 312-a second connecting plate; 313-a fifth connecting plate; 314-a third connecting plate; 320-a first support; 321-a first connection face; 322-a second connection face; 330-a second support; 331-a third connection face; 332-a fourth connection face; 400-boss; 500-fan blades.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
The wind turbine hub flexible structure 20 provided in the present embodiment is described in detail below with reference to fig. 1 to 4.
Referring to fig. 1, an embodiment of the present invention provides a wind turbine 10. The wind generating set 10 includes a wind generator hub flexible structure 20. The wind generating set 10 further comprises fan blades 500.
Referring to fig. 1 and 2, an embodiment of the present invention provides a wind turbine hub flexible structure 20, including: a hub 100; the frame 200 comprises a plurality of plates, the plates are sequentially arranged end to end along the circumferential direction of the hub 100 to form a regular polygon, the plates are all located inside the hub 100, and at least part of the plates are used for mounting a control cabinet; and a plurality of elastic coupling members 300, adjacent both ends of adjacent two plates being commonly coupled to the hub 100 by the elastic coupling members 300.
The hub 100 is a spherical casting, which connects the generator and the blades, and is a rotating component of the wind turbine 10. Specifically, the fan blades 500 are connected to the outside of the hub 100, and the frame 200 is connected to the inside of the hub 100 through the elastic connection assembly 300. The elastic connection assembly 300 is used to connect the frame 200 and the hub 100.
A plurality of boards enclose a three-dimensional regular polygon, and the stress uniformity of the whole structure is guaranteed. The whole frame 200 is connected to the hub 100 through the elastic connection assembly 300 as an integral structure, the whole frame 200 can buffer the impact on the frame, the control cabinet and the internal electrical elements, and the elastic connection assembly 300 can reduce the fatigue damage to the frame 200 when the hub 100 rotates. Meanwhile, the two adjacent ends of the two adjacent plates are connected together through the elastic connection assembly 300 and connected to the hub 100, so that the frame 200 can be prevented from cracking due to thermal deformation of the hub 100 casting.
Wherein, the scheme that the plurality of plates are at least partially used for installing the control cabinet comprises the following scheme:
in a first scheme, a plurality of plates are used for mounting a control cabinet. The number of plates is the same as the number of control cabinets.
Specifically, there are 3 sets of independent variable pitch systems in the hub 100, and correspondingly, the number of the control cabinets is also three. The number of the plates is three, and the three plates form a structure similar to a triangular prism. And a control cabinet is respectively arranged on the three plates.
In a second scheme, referring to fig. 2, two adjacent boards are a mounting board 210 and a platform board 220, respectively, where the mounting board 210 is used for mounting the control cabinet, and the platform board 220 is used for providing an access platform.
The mounting plate 210 is used to mount the rejection cabinet of the pitch system. When the platform board 220 is used for maintenance of the blower, personnel stand on the platform board 220 and perform maintenance work. The installation problem of both having solved the switch board has also solved the maintenance problem.
Specifically, the number of plates is six, and the six plates enclose a structure similar to a hexagonal prism. The number of the mounting plates 210 is three, the number of the platform plates 220 is three, and one platform plate 220 is connected between the two mounting plates 210.
When the fan is in the maintenance state, a platform board 220 is in the horizontal position, and two other mounting panels 210 are located the both sides of platform board 220, and the people stands on platform board 220, can very safely and conveniently maintain the switch board of installing on the mounting panel 210 of platform board 220 both sides.
Referring to fig. 2 and 3, in the present embodiment, the elastic connection assembly 300 includes an elastic connection plate, the elastic connection plate includes a first connection plate 310, a second connection plate 312 and a third connection plate 314, which are connected in sequence, and the first connection plate 310 and the third connection plate 314 are symmetrically disposed relative to the second connection plate 312; the adjacent ends of the two adjacent plates are respectively disposed on the first connecting plate 310 and the third connecting plate 314, and the second connecting plate 312 is connected to the hub 100.
The elastic connecting plates are of a symmetrical structure, and two adjacent plates are also symmetrically arranged relative to the elastic connecting plates, so that the stress of the whole structure is ensured to be uniform. Meanwhile, the two adjacent ends of the two adjacent plates are connected through the elastic connecting plate, so that the phenomenon that the plates are cracked due to thermal deformation of the hub 100 casting is avoided.
Specifically, the first connecting plate 310, the second connecting plate 312, and the third connecting plate 314 are integrally formed. The elastic connecting plates are in a symmetrical structure.
With reference to fig. 4, in this embodiment, the elastic connection assembly 300 further includes a fourth connection plate 311 and a fifth connection plate 313, and the first connection plate 310, the fourth connection plate 311, the second connection plate 312, the fifth connection plate 313 and the third connection plate 314 are sequentially connected; the fourth connecting plate 311 and the fifth connecting plate 313 are symmetrically disposed relative to the second connecting plate 312, and the fourth connecting plate 311 and the fifth connecting plate 313 are respectively disposed at an included angle with the second connecting plate 312, so that the first connecting plate 310 and the third connecting plate 314 are disposed in a staggered manner with respect to the second connecting plate 312.
Specifically, the fourth connecting plate 311 and the fifth connecting plate 313 are both located on the same side of the first connecting plate 310, the fourth connecting plate 311 is approximately 45 ° from the first connecting plate 310, and the fifth connecting plate 313 is approximately 45 ° from the first connecting plate 310. It should be noted that: the included angle between the fourth connecting plate 311 and the first connecting plate 310 and the included angle between the fifth connecting plate 313 and the first connecting plate 310 are set according to actual requirements.
In this embodiment, the first connecting plate 310, the fourth connecting plate 311, the second connecting plate 312, the fifth connecting plate 313 and the third connecting plate 314 are integrally formed.
In the present embodiment, the first connecting plate 310, the fourth connecting plate 311, the second connecting plate 312, the fifth connecting plate 313 and the third connecting plate 314 are respectively plate-shaped. In other embodiments, the first connecting plate 310, the fourth connecting plate 311, the second connecting plate 312, the fifth connecting plate 313 and the third connecting plate 314 may have an arc shape or an irregular shape, respectively, as long as the elastic connecting plates have a symmetrical structure.
With continued reference to fig. 4, in the present embodiment, the first connecting plate 310 and the third connecting plate 314 are coplanar, and both the first connecting plate 310 and the third connecting plate 314 are parallel to the second connecting plate 312.
Referring again to fig. 3, in the present embodiment, the elastic connection assembly 300 further includes a first support 320 and a second support 330; the first support 320 has a first connecting surface 321 and a second connecting surface 322 disposed at an included angle, the first connecting surface 321 is used for being attached and fixedly connected with the first connecting plate 310; the second support 330 has a third connecting surface 331 and a fourth connecting surface 332 arranged at an included angle, and the third connecting surface 331 is used for being attached and fixedly connected with the third connecting plate 314; the second connecting surface 322 and the fourth connecting surface 332 are respectively used for being attached to and fixedly connected with the outer walls of two adjacent ends of two adjacent plates.
The first seats 320 are used to compensate for the angular difference between the first connection plate 310 and the plate, and the second seats 330 are used to compensate for the angular difference between the third connection plate 314 and the plate, so that the plate can generate a buffering action by the elastic action of the elastic connection plate.
Specifically, the plate, the first holder 320, and the first connection plate 310 are connected by bolts, and the plate, the second holder 330, and the third connection plate 314 are connected by bolts.
With continued reference to fig. 3, in the present embodiment, the wind turbine hub flexible structure 20 further includes a boss 400 formed on an inner wall of the hub 100, the boss 400 has a mounting surface attached to the second connection plate 312, and the mounting surface is fixedly connected to the second connection plate 312.
The boss 400 is used to fix the elastic coupling assembly 300, which is cast together with the hub 100. Specifically, the second connection plate 312 is bolted to the mounting surface.
In this embodiment, the elastic connection plate is made of spring steel. One side of the elastic connection plate is connected to the boss 400 of the casting of the hub 100 and the other side is connected to the frame 200.
Elastic connection board is for traditional elastic support pad, simple structure, and the buffering volume is big, compares rubber packing and has ageing phenomenon, elastic connection board's long service life, need not change in the fan operation life cycle.
The wind driven generator hub flexible structure 20 provided by the embodiment has at least the following advantages:
the frame 200 comprises a plurality of plates, the plurality of plates form a regular polygon, and the whole structure of the frame 200 is stressed uniformly. Meanwhile, the frame 200 is connected to the hub 100 through the elastic connection assembly 300, and the elastic connection assembly 300 can buffer impact on the frame 200 and components mounted on the frame 200 during rotation of the hub 100, thereby alleviating fatigue damage to the frame 200. Moreover, two ends of two adjacent plates are connected through the elastic connection assembly 300, so that the frame 200 can be prevented from cracking caused by thermal deformation of the hub 100 casting.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. A wind generator hub compliant structure comprising:
a hub (100);
the frame (200) comprises a plurality of plates, the plates are sequentially arranged end to end along the circumferential direction of the hub (100) to form a regular polygon, the plates are located inside the hub (100), and at least part of the plates are used for mounting a control cabinet; and
a plurality of elastic connection members (300), adjacent both ends of adjacent two of the plates being connected to the hub (100) together through the elastic connection members (300).
2. The wind turbine hub compliant structure of claim 1, wherein:
the plurality of plates are all used for installing the control cabinet.
3. The wind turbine hub compliant structure of claim 1, wherein:
two adjacent the board is mounting panel (210) and landing slab (220) respectively, mounting panel (210) are used for installing the switch board, landing slab (220) are used for providing the maintenance platform.
4. A wind turbine hub flexible structure according to any one of claims 1-3, wherein:
the elastic connecting assembly (300) comprises elastic connecting plates, the elastic connecting plates comprise a first connecting plate (310), a second connecting plate (312) and a third connecting plate (314) which are sequentially connected, and the first connecting plate (310) and the third connecting plate (314) are symmetrically arranged relative to the second connecting plate (312);
two adjacent ends of two adjacent plates are respectively arranged on the first connecting plate (310) and the third connecting plate (314), and the second connecting plate (312) is connected with the hub (100).
5. Wind turbine hub flexible structure according to claim 4, characterized in that:
the elastic connecting assembly (300) further comprises a fourth connecting plate (311) and a fifth connecting plate (313), and the first connecting plate (310), the fourth connecting plate (311), the second connecting plate (312), the fifth connecting plate (313) and the third connecting plate (314) are sequentially connected;
the fourth connecting plate (311) and the fifth connecting plate (313) are symmetrically arranged relative to the second connecting plate (312), and the fourth connecting plate (311) and the fifth connecting plate (313) are arranged at included angles with the second connecting plate (312) respectively, so that the first connecting plate (310) and the third connecting plate (314) are arranged in a staggered mode with the second connecting plate (312).
6. Wind turbine hub flexible structure according to claim 5, characterized in that:
the first connecting plate (310) and the third connecting plate (314) are coplanar, and the first connecting plate (310) and the third connecting plate (314) are both parallel to the second connecting plate (312).
7. Wind turbine hub flexible structure according to claim 4, characterized in that:
the elastic connecting plate is made of spring steel.
8. Wind turbine hub flexible structure according to claim 4, characterized in that:
the resilient connection assembly (300) further comprises a first seat (320) and a second seat (330);
the first support (320) is provided with a first connecting surface (321) and a second connecting surface (322) which are arranged at an included angle, and the first connecting surface (321) is used for being attached and fixedly connected with the first connecting plate (310);
the second support (330) is provided with a third connecting surface (331) and a fourth connecting surface (332) which are arranged at included angles, and the third connecting surface (331) is attached to and fixedly connected with the third connecting plate (314);
the second connecting surface (322) and the fourth connecting surface (332) are respectively used for being attached to and fixedly connected with the outer walls of the two adjacent ends of the two adjacent plates.
9. Wind turbine hub flexible structure according to claim 4, characterized in that:
the wind driven generator hub flexible structure further comprises a boss (400) formed on the inner wall of the hub (100), the boss (400) is provided with a mounting surface attached to the second connecting plate (312), and the mounting surface is fixedly connected with the second connecting plate (312).
10. A wind power plant (10), characterized by:
the wind park (10) comprising a wind turbine hub flexible structure according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120284002.3U CN214196543U (en) | 2021-02-01 | 2021-02-01 | Wind driven generator hub flexible structure and wind driven generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120284002.3U CN214196543U (en) | 2021-02-01 | 2021-02-01 | Wind driven generator hub flexible structure and wind driven generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214196543U true CN214196543U (en) | 2021-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120284002.3U Active CN214196543U (en) | 2021-02-01 | 2021-02-01 | Wind driven generator hub flexible structure and wind driven generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214196543U (en) |
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2021
- 2021-02-01 CN CN202120284002.3U patent/CN214196543U/en active Active
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