CN207406440U - Wind power generating set and its lightning conductor attachment device - Google Patents
Wind power generating set and its lightning conductor attachment device Download PDFInfo
- Publication number
- CN207406440U CN207406440U CN201721539908.5U CN201721539908U CN207406440U CN 207406440 U CN207406440 U CN 207406440U CN 201721539908 U CN201721539908 U CN 201721539908U CN 207406440 U CN207406440 U CN 207406440U
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- China
- Prior art keywords
- lightning
- blade
- wheel hub
- lightning conductor
- attachment device
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- 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.)
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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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- Wind Motors (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The utility model is related to technical field of wind power generating equipment, more particularly to a kind of lightning conductor attachment device, for connecting blade lightning-protection conducting wire and wheel hub lightning conductor, the attachment device includes conductive shaft and connecting plate, the conductive shaft is fixedly mounted on wheel hub, its first end is connected with wheel hub lightning conductor, and second end and the first end of the connecting plate are rotatablely connected, and the second end of the connecting plate is connected with blade lightning-protection conducting wire.The utility model can realize conduction of the lightning current between blade, wheel hub, and structure design, transmission path are simple and effective, and lightning conductor need not undertake distortion power in pitch movement, eliminate torsional deformation risk.The utility model further provides a kind of wind power generating set.
Description
Technical field
The utility model is related to technical field of wind power generating equipment, more particularly to a kind of wind power generating set and its lightning-arrest lead
Wire-connecting device.
Background technology
The blade of wind power generating set is mounted on towering atop a tower, and lightning stroke is extremely easily met in thunderstorm weather, because
This must take effective lightning protection measures.
Common lightning protection measures are to set lightning conductor between blade, wheel hub and tower, after blade is successfully connect sudden strain of a muscle
Lightning current by wheel hub, chassis, is finally passed to underground via tower successively.And it is arranged on the lightning conductor between blade and wheel hub
Pitch variable bearings need to be passed through, on the one hand, lightning current easily generates galvano-cautery to pitch variable bearings, pitch variable bearings is caused to damage, the opposing party
Face, there are pitch movements between blade and wheel hub so that lightning conductor, which is wound, to be damaged, and lightning protection measures is caused to fail.Cause
The transmission path of this lightning current must avoid pitch variable bearings, while also need that lightning conductor is avoided to be wound.
In the prior art, it is specific as follows there are following two relatively classical connection modes：
The first uses carbon brush structure, and wheel hub is provided with carbon brush fixing bracket, and the support bracket fastened other end has shrapnel, shrapnel
The carbon brush being in contact with the lightning protection ring being fixed on blade is connected by screw bolts.In this way, carbon brush belongs to easy wearing detail,
Price is relatively high, and use cost is high；Lightning protection ring is connected with blade, and after long-play, lightning protection ring easily loosens, it is difficult to protect
The reliable contacts of lightning protection ring and carbon brush are demonstrate,proved, therefore need the contact reliability of running check carbon brush and lightning protection ring, maintenance cost is high.
Second, using the lightning protection stent with hanging ring, tension spring, one end is fixed on wheel hub, and one end is fixed on root of blade
Cover plate for manhole；During vane propeller-changing, tension spring component and then rotates, and the pulling force that variable pitch generates is undertaken by tension spring, to prevent lightning protection stent
Be distorted deformation.This structure there is also it is certain the shortcomings that, conductor wiring is wrapped in the connectors such as the spring of oblique pull, cotton rope
On, conducting wire is easily distorted；Spring bears variable pitch pulling force, and fatigue easily occurs.
Utility model content
The purpose of this utility model is to provide a kind of wind power generating set and its lightning conductor attachment device, to solve leaf
The technical issues of piece and wheel hub thunder and lightning steaming transfer.
The utility model in a first aspect, a kind of lightning conductor attachment device is provided, for connecting blade lightning-protection conducting wire
With wheel hub lightning conductor, the attachment device includes conductive shaft and connecting plate, and the conductive shaft is fixedly mounted on wheel hub, the
One end is connected with wheel hub lightning conductor, and second end and the first end of the connecting plate are rotatablely connected, the second end of the connecting plate
It is connected with blade lightning-protection conducting wire.
Further, the conductive shaft outer cover is equipped with insulating sleeve, and the insulating sleeve is fixedly mounted on wheel hub and fixes
On frame.
Further, the conductive shaft is in wheel hub shaft and blade rotor on same axis.
Further, it is also associated with flexible connecting member between the second end of the connecting plate and blade fixed frame.
Further, the flexible connecting member is made of connecting rod and spring, and described connecting rod one end is fixedly connected on institute
It states on connecting plate, the other end is connected with spring one end, and the spring other end is connected on blade fixed frame.
Further, the blade lightning-protection conducting wire is bundled on the flexible connecting member.
The utility model can realize conduction of the lightning current between blade, wheel hub, and structure design, transmission path simply have
Effect, lightning conductor need not undertake distortion power in pitch movement, eliminate torsional deformation risk.By the adjusting of flexible connecting member
Effect, it is ensured that the concentricity between conductive shaft and wheel hub and blade.
The second aspect of the utility model additionally provides a kind of wind power generating set, including blade and wheel hub, the blade
Blade lightning-protection conducting wire is connected with, the wheel hub is connected with wheel hub lightning conductor, further includes described in any one of the above embodiments lightning-arrest
Wire connection device, for connecting blade lightning-protection conducting wire and wheel hub lightning conductor.
Description of the drawings
The attached drawing for forming the part of the utility model is used to provide a further understanding of the present invention, this practicality is new
The schematic description and description of type does not form the improper restriction to the utility model for explaining the utility model.
In attached drawing：
Fig. 1 is the structure diagram of the utility model embodiment lightning conductor attachment device；
Fig. 2 is the enlarged structure schematic diagram at A in Fig. 1.
In figure：11st, connecting plate；12nd, conductive shaft；13rd, insulating sleeve；14th, connecting rod；15th, spring；21st, blade lightning-protection is led
Line；22nd, blade fixed frame；31st, wheel hub lightning conductor；32nd, wheel hub fixed frame.
Specific embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the utility model can
To be mutually combined.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in the description of the utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally
It connects or is mechanically connected or is connected directly, can also be indirectly connected by intermediary, can be two
Connection inside element.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in this practicality
Concrete meaning in new.
As depicted in figs. 1 and 2, the lightning conductor attachment device of the present embodiment, for connecting blade lightning-protection conducting wire and wheel hub
Lightning conductor, attachment device include conductive shaft 12 and connecting plate 11, and conductive shaft 12 is fixedly mounted on wheel hub, and the of conductive shaft 12
One end is connected with wheel hub lightning conductor 31, and the first end of second end and connecting plate 11 is rotatablely connected, the second end of connecting plate 11 with
Blade lightning-protection conducting wire 21 connects.
Lightning current to prevent conductive shaft 12 flows to wheel hub steel structure, and 12 outer cover of conductive shaft is equipped with insulating sleeve 13,
Conductive shaft 12 is fixedly mounted on by insulating sleeve 13 on wheel hub fixed frame 32.
To ensure that connecting plate 11 is synchronous with pitch movement around the rotation of conductive shaft 12, conductive shaft 12 and wheel hub shaft and blade
Shaft is (not specifically illustrated in figure) on same axis.
Further, it is guarantee conductive shaft 12 and the concentricity at blade flange center, the second end and blade of connecting plate 11
The flexible connector of radially installed is gone back between fixed frame 22.Flexible connecting member, which is adopted, to be made from an insulative material, to prevent lightning current from passing through
Flexible connecting member flows to blade steel structure.
Specifically, flexible connecting member is made of connecting rod 14 and spring 15,14 one end of connecting rod is fixedly connected on connecting plate
On 11, the other end is connected with 15 one end of spring, and 15 other end of spring is connected on blade fixed frame 22.To prevent lightning current from flowing to
Blade steel structure, connecting rod 14 are made of insulating materials.
To prevent the random vibration in pitch movement of blade lightning-protection conducting wire 21, blade lightning-protection conducting wire 21 is bundled in the flexibility
On connector.
During variable pitch, blade is rotated by pitch variable bearings relativeatoeterahub, and connecting plate 11 can be rotated around conductive shaft 12, therefore blade
Lightning conductor 21 can relative vane fix, be not subjected to distortion power.
In thunderstorm weather, lightning current connects flash-point by blade and receives, conducts to connecting plate 11, then pass through through blade lightning-protection conducting wire 21
It crosses conductive shaft 12 to conduct to wheel hub lightning conductor 31, so as to complete conduction of the lightning current between blade and wheel hub.
The present embodiment can realize conduction of the lightning current between blade, wheel hub, and structure design, transmission path are simple and effective,
Lightning conductor need not undertake distortion power in pitch movement, eliminate torsional deformation risk.Make by the adjusting of flexible connecting member
With, it is ensured that the concentricity between conductive shaft and wheel hub and blade.
On this basis, the present embodiment additionally provides a kind of wind power generating set, and including blade and wheel hub, blade connection is set
There is blade lightning-protection conducting wire 21, wheel hub is connected with wheel hub lightning conductor 31, further includes above-mentioned lightning conductor attachment device, is used for
Connect blade lightning-protection conducting wire 21 and wheel hub lightning conductor 31, lightning current smoothly, is reliably conducted from blade lightning-protection conducting wire 21 to
Wheel hub lightning conductor 31.Due to using above-mentioned lightning conductor attachment device, its specific all advantage no longer repeat one by one herein.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
Within new spirit and principle, any modifications, equivalent replacements and improvements are made should be included in the guarantor of the utility model
Within the scope of shield.In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other implementations
Included some features rather than other feature in example, but the combination of the feature of different embodiments means in this practicality
Within the scope of new and form different embodiments.
Claims (7)
1. a kind of lightning conductor attachment device, for connecting blade lightning-protection conducting wire (21) and wheel hub lightning conductor (31), feature
It is：The attachment device includes conductive shaft (12) and connecting plate (11), and the conductive shaft (12) is fixedly mounted on wheel hub,
First end is connected with wheel hub lightning conductor (31), and second end and the first end of the connecting plate (11) are rotatablely connected, the connection
The second end of plate (11) is connected with blade lightning-protection conducting wire (21).
2. lightning conductor attachment device according to claim 1, it is characterised in that：Conductive shaft (12) outer cover is equipped with
Insulating sleeve (13), the insulating sleeve (13) are fixedly mounted on wheel hub fixed frame (32).
3. lightning conductor attachment device according to claim 2, it is characterised in that：The conductive shaft (12) and wheel hub shaft
It is in blade rotor on same axis.
4. lightning conductor attachment device according to claim 1, it is characterised in that：The second end of the connecting plate (11) with
Blade fixed frame is also associated with flexible connecting member between (22).
5. lightning conductor attachment device according to claim 4, it is characterised in that：The flexible connecting member is by connecting rod
(14) it is fixedly connected on spring (15) composition, described connecting rod (14) one end on the connecting plate (11), the other end and spring
(15) one end connects, and spring (15) other end is connected on blade fixed frame (22).
6. lightning conductor attachment device according to claim 4 or 5, it is characterised in that：The blade lightning-protection conducting wire binding
On the flexible connecting member.
7. a kind of wind power generating set, including blade and wheel hub, the blade is connected with blade lightning-protection conducting wire (21), the wheel
Hub is connected with wheel hub lightning conductor (31), it is characterised in that：Further include claim 1-6 any one of them lightning conductor company
Connection device, for connecting blade lightning-protection conducting wire (21) and wheel hub lightning conductor (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721539908.5U CN207406440U (en) | 2017-11-16 | 2017-11-16 | Wind power generating set and its lightning conductor attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721539908.5U CN207406440U (en) | 2017-11-16 | 2017-11-16 | Wind power generating set and its lightning conductor attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207406440U true CN207406440U (en) | 2018-05-25 |
Family
ID=62316699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721539908.5U Active CN207406440U (en) | 2017-11-16 | 2017-11-16 | Wind power generating set and its lightning conductor attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207406440U (en) |
-
2017
- 2017-11-16 CN CN201721539908.5U patent/CN207406440U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: Sany Heavy Energy Co., Ltd Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |