CN203404027U - Lightning protection device for blades of wind turbine generator - Google Patents
Lightning protection device for blades of wind turbine generator Download PDFInfo
- Publication number
- CN203404027U CN203404027U CN201320453651.7U CN201320453651U CN203404027U CN 203404027 U CN203404027 U CN 203404027U CN 201320453651 U CN201320453651 U CN 201320453651U CN 203404027 U CN203404027 U CN 203404027U
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- Prior art keywords
- lightning protection
- base
- connects
- connected element
- lifting bolt
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/30—Lightning protection
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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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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The utility model discloses a lightning protection device for blades of a wind turbine generator. The lightning protection device for the blades of the wind turbine generator comprises a hub, the blades and a lightning protection guide line fixing device. A first lightning catching base and a first lightning catching support are fixed to the hub. A manhole cover plate is fixed to the blades; a second lightning catching base and a second lightning catching support are fixed to the manhole cover plate. One end of the lightning protection guide line fixing device is connected with the first lightning catching base; the other end of the lightning protection guide line fixing device is connected with the second lightning catching base. The lightning protection guide line fixing device comprises a first connection component, a tension spring, a first connection part, a second connection part and a second connection component. A third connection component is connected to the first lightning catching base in a rotatable mode. A fourth connection component is connected to the second lightning catching base in a rotatable mode. One end of the first connection component is connected with the first connection part; the other end of the first connection component is connected with the third connection component. One end of the second connection component is connected with the second connection part; the other end of the second connection component is connected with the fourth connection component. The lightning protection device has the advantages of being resistant to twisting and tensioning, long in service life and good in use effect.
Description
Technical field
The utility model belongs to technical field of wind power generation, is specifically related to a kind of lightning protection device for wind turbine blade.
Background technique
Wind-driven generator is installed on spacious place, field conventionally, add the feature that oneself height is higher, blade is longer, increased the probability that blade itself is struck by lightning, therefore need on the blade of wind-driven generator, lighting protection device be installed, to prevent that thunder and lightning from damaging the component in blade and wheel hub.
At present, the domestic wind-driven generator Lightning Protection that adopt are to use elastic rope or antitorque steel wire as the fixing bridge of lightning protection wire between blade and wheel hub more.Adopt this Lightning Protection to have very large potential safety hazard, self structure restriction due to wind-driven generator, when vane propeller-changing, elastic rope and antitorque steel wire can be subject to torsion and pulling force simultaneously, be subject to the impact of torsion and pulling force, elastic rope and antitorque steel wire can produce torsional deformation, even break, greatly shorten the working life of elastic rope and antitorque steel wire, affected the lightning protection effect of blade.
Model utility content
The unreasonable part existing for lightning protection structure of the prior art, the utility model provides the lightning protection device for wind turbine blade of a kind of resistance to torsion and stretch-proof, its long service life, and there is good using effect.
The technological scheme that realizes the utility model object is:
, comprising:
Wheel hub, is fixedly connected with first and connects and dodge base and first and connect sudden strain of a muscle support on it;
Blade, which is provided with cover plate for manhole, is fixedly connected with second and connects and dodge base and second and connect sudden strain of a muscle support on described cover plate for manhole;
Lightning protection wire, connects described first and connects and dodge support and second and connect sudden strain of a muscle support;
Lightning protection wire fixing device, its one end and described first connects sudden strain of a muscle base and is connected, its the other end and described first connects sudden strain of a muscle base and is connected, and described lightning protection wire is wrapped on described lightning protection wire fixing device, and the middle part of described lightning protection wire is connected with lightning protection wire fixing device by Wiring device;
Described lightning protection wire fixing device comprises the first connected element, tension spring component and the second connected element connecting successively;
Described tension spring component comprises extension spring, be connected with at first link can rotate around the axis of one end of described extension spring and be connected with the second link can rotate around the axis at the other end of described extension spring;
Described first connects and dodges the 3rd connected element that has been rotatably connected on base, and described second connects and dodge the 4th connected element that has been rotatably connected on base;
One end of described the first connected element is connected with described the first link, and its other end is connected with described the 3rd connected element; One end of described the second connected element is connected with described the second link, and its other end is connected with described the 4th connected element.
In technique scheme, described the 3rd connected element comprises the first lifting bolt, the first nut and the first cotter pin;
Described the first connected element is connected with the annulus portion of described the first lifting bolt, and the screw part of described the first lifting bolt connects through described first the through hole and described the first nut that dodge on base and is spirally connected and uses described the first cotter pin locking; Spacing between described the first lifting bolt and the first nut is greater than described first and connects the thickness that dodges base, thereby make described the 3rd connected element and described first connect sudden strain of a muscle base, forms the structure that is rotatably connected.
In technique scheme, described the 4th connected element comprises the second lifting bolt, the second nut and the second cotter pin;
Described the second connected element is connected with the annulus portion of described the second lifting bolt, the screw part of described the second lifting bolt is spirally connected and uses described the second cotter pin locking through being arranged on the described second through hole and described the second nut connecing on sudden strain of a muscle base, spacing between described the second lifting bolt and the second nut is greater than described second and connects the thickness that dodges base, thereby make described the 4th connected element and described second connect sudden strain of a muscle base, forms the structure that is rotatably connected.
In technique scheme, described the first connected element and the second connected element are hook, and the length of described the second connected element is greater than the length of described the first connected element, and described lightning protection wire is connected with the second connected element by described Wiring device.
In technique scheme, described Wiring device is band, clip or cotton rope.
The utlity model has positive effect:
Use lightning protection device for wind turbine blade of the present utility model, during vane propeller-changing, can drive tension spring component free to rotate and the 3rd connected element and the 4th connected element to rotate, thus the blade lightning protection device distortion that is distorted while preventing vane propeller-changing; The pulling force that blade lightning protection device is subject to when vane propeller-changing can be born in the extension spring in tension spring component, so the situation that can not break, adopt the structure in the utility model effectively to extend the working life of lightning protection device for wind turbine blade, and there is good using effect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the partial enlarged view at the A place of Fig. 1;
Reference character shown in figure is: 1-wheel hub; 11-first connects sudden strain of a muscle base; 12-first connects sudden strain of a muscle support; 2-blade; 3-cover plate for manhole; 31-second connects sudden strain of a muscle base; 32-second connects sudden strain of a muscle support; 4-lightning protection wire; 5-lightning protection wire fixing device; 51-the first connected element; 52-tension spring component; 53-the second connected element; 54-extension spring; 55-the first link; 56-the second link; 57-the 3rd connected element; 58-the 4th connected element; 6-Wiring device; 7-the first lifting bolt; 71-the first nut; 72-the first cotter pin; 8-the second lifting bolt.
Embodiment
Below in conjunction with Figure of description, a kind of embodiment of lightning protection device for wind turbine blade of the present utility model is elaborated:
As depicted in figs. 1 and 2, a kind of lightning protection device for wind turbine blade, comprising:
Lightning protection wire fixing device 5, its one end and described first connects sudden strain of a muscle base 11 and is connected, its the other end and described first connects sudden strain of a muscle base 11 and is connected, described lightning protection wire 4 is wrapped on described lightning protection wire fixing device 5, and the middle part of described lightning protection wire 4 is connected with lightning protection wire fixing device 5 by Wiring device 6;
Described lightning protection wire fixing device 5 in the present embodiment comprises the first connected element 51, tension spring component 52 and the second connected element 53 connecting successively; Described tension spring component 52 comprises extension spring 54, be connected with at first link 55 can rotate around the axis of one end of described extension spring 54 and be connected with the second link 56 can rotate around the axis at the other end of described extension spring 54; Described first connects and dodges the 3rd connected element 57 that has been rotatably connected on base 11, and described second connects and dodge the 4th connected element 58 that has been rotatably connected on base 31; One end of described the first connected element 51 is connected with described the first link 55, and its other end is connected with described the 3rd connected element 57; One end of described the second connected element 53 is connected with described the second link 56, and its other end is connected with described the 4th connected element 58.
Described the 3rd connected element 57 in the present embodiment comprises the first lifting bolt 7, the first nut 71 and the first cotter pin 72; Described the first connected element 51 is connected with the annulus portion of described the first lifting bolt 7, and the screw part of described the first lifting bolt 7 connects through described first the through hole and described the first nut 71 that dodge on base 11 and is spirally connected and uses described the first cotter pin 72 lockings; The screw part of described the first lifting bolt 7 and described first connects the via clearance of dodging on base 11 and coordinates, spacing between described the first lifting bolt 7 and the first nut 71 is greater than described first and connects the thickness that dodges base 11, thereby make described the 3rd connected element 57 and described first connect sudden strain of a muscle base 11 and form the structure that is rotatably connected, when fixed installation, attention connects to dodge on the surface of contact of base 11 and surface of contact that the first nut 71 and first connects sudden strain of a muscle base 11 at the first lifting bolt 7 and first smears micro-lubricant oil, to guarantee that the 3rd connected element 57 can easily freely rotate.
Described the 4th connected element 58 in the present embodiment comprises the second lifting bolt 8, the second nut and the second cotter pin; Described the second connected element 53 is connected with the annulus portion of described the second lifting bolt 8, and the screw part of described the second lifting bolt 8 is spirally connected and uses described the second cotter pin locking through being arranged on the described second through hole and described the second nut connecing on sudden strain of a muscle base 31; The screw part of described the second lifting bolt 8 and described second connects the via clearance of dodging on base 31 and coordinates, spacing between described the second lifting bolt 8 and the second nut is greater than described second and connects the thickness that dodges base 31, thereby make described the 4th connected element 58 and described second connect sudden strain of a muscle base 31, forms the structure that is rotatably connected.In when fixed installation, need connect to dodge on the surface of contact of base 31 and surface of contact that the second nut 71 and second connects sudden strain of a muscle base 31 at the second lifting bolt 8 and second and smear micro-lubricant oil, to guarantee that the 3rd connected element 57 can easily freely rotate.
The 3rd above-mentioned connected element 57 and the structure of the 4th connected element 58 are comparatively simple, are convenient to produce in enormous quantities; Certainly, in practice, described the 3rd connected element 57 and the 4th connected element 58 also can adopt to realize and rotate other structures of object.
Described the first connected element 51 and the second connected element 53 in the present embodiment are hook, the length of described the second connected element 53 is greater than the length of described the first connected element 51, and described lightning protection wire 4 is connected with the second connected element 53 by described Wiring device 6.
The spiral spring that described extension spring 54 in the present embodiment is hollow tubular, its two ends are inner conical; Thereby one end that described the first link 55 is connected with described extension spring 54 with the second link 56 is stretched into and in the tube chamber of spiral spring, is formed the structure that is rotatably connected.
Wiring device described in the present embodiment 6 can adopt band, clip or cotton rope.
Use lightning protection device for wind turbine blade of the present utility model, when blade 2 becomes oar, can drive tension spring component 52 free to rotate and the 3rd connected element 57 and the 4th connected element 58 to rotate, thus the blade lightning protection device distortion that is distorted while preventing that blade 2 from becoming oar; The pulling force that blade lightning protection device is subject to when blade 2 becomes oar can be born in the extension spring 54 in tension spring component 52, so can there is not the situation that blade lightning protection device is broken, in sum, adopt the structure in the utility model effectively to extend the working life of lightning protection device for wind turbine blade, and there is good using effect.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to mode of execution of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all mode of executions.And these belong to apparent variation or the change that connotation of the present utility model extends out and still belong to protection domain of the present utility model.
Claims (5)
1. a lightning protection device for wind turbine blade, comprising:
Wheel hub (1), is fixedly connected with first and connects and dodge base (11) and first and connect sudden strain of a muscle support (12) on it;
Blade (2), which is provided with cover plate for manhole (3), is fixedly connected with second and connects and dodge base (31) and second and connect sudden strain of a muscle support (32) on described cover plate for manhole (3);
Lightning protection wire (4), connects described first and connects and dodge support (12) and second and connect sudden strain of a muscle support (32);
Lightning protection wire fixing device (5), its one end and described first connects sudden strain of a muscle base (11) and is connected, its the other end and described second connects sudden strain of a muscle base (31) and is connected, it is upper that described lightning protection wire (4) is wrapped in described lightning protection wire fixing device (5), and the middle part of described lightning protection wire (4) is connected with lightning protection wire fixing device (5) by Wiring device (6);
It is characterized in that: described lightning protection wire fixing device (5) comprises the first connected element (51), tension spring component (52) and the second connected element (53) connecting successively;
Described tension spring component (52) comprises extension spring (54), be connected with at first link (55) can rotate around the axis of one end of described extension spring (54) and be connected with the second link (56) can rotate around the axis at the other end of described extension spring (54);
Described first connects and dodges the 3rd connected element (57) that has been rotatably connected on base (11), and described second connects and dodge the 4th connected element (58) that has been rotatably connected on base (31);
One end of described the first connected element (51) is connected with described the first link (55), and its other end is connected with described the 3rd connected element (57); One end of described the second connected element (53) is connected with described the second link (56), and its other end is connected with described the 4th connected element (58).
2. lightning protection device for wind turbine blade according to claim 1, is characterized in that: described the 3rd connected element (57) comprises the first lifting bolt (7), the first nut (71) and the first cotter pin (72);
Described the first connected element (51) is connected with the annulus portion of described the first lifting bolt (7), and the screw part of described the first lifting bolt (7) connects through described first the through hole and described the first nut (71) that dodge on base (11) and is spirally connected and uses described the first cotter pin (72) locking; The screw part of described the first lifting bolt (7) and described first connects the via clearance of dodging on base (11) and coordinates, spacing between described the first lifting bolt (7) and the first nut (71) is greater than described first and connects the thickness that dodges base (11), thereby make described the 3rd connected element (57) and described first connect sudden strain of a muscle base (11), forms the structure that is rotatably connected.
3. lightning protection device for wind turbine blade according to claim 2, is characterized in that: described the 4th connected element (58) comprises the second lifting bolt (8), the second nut and the second cotter pin;
Described the second connected element (53) is connected with the annulus portion of described the second lifting bolt (8), and the screw part of described the second lifting bolt (8) is spirally connected and uses described the second cotter pin locking through being arranged on the described second through hole and described the second nut connecing on sudden strain of a muscle base (31); The screw part of described the second lifting bolt (8) and described second connects the via clearance of dodging on base (31) and coordinates, spacing between described the second lifting bolt (8) and the second nut is greater than described second and connects the thickness that dodges base (31), thereby make described the 4th connected element (58) and described second connect sudden strain of a muscle base (31), forms the structure that is rotatably connected.
4. lightning protection device for wind turbine blade according to claim 3, it is characterized in that: described the first connected element (51) and the second connected element (53) are hook, the length of described the second connected element (53) is greater than the length of described the first connected element (51), and described lightning protection wire (4) is connected with the second connected element (53) by described Wiring device (6).
5. according to the lightning protection device for wind turbine blade described in any one in claim 1 to 4, it is characterized in that: described Wiring device (6) is band, clip or cotton rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320453651.7U CN203404027U (en) | 2013-07-26 | 2013-07-26 | Lightning protection device for blades of wind turbine generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320453651.7U CN203404027U (en) | 2013-07-26 | 2013-07-26 | Lightning protection device for blades of wind turbine generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203404027U true CN203404027U (en) | 2014-01-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320453651.7U Expired - Lifetime CN203404027U (en) | 2013-07-26 | 2013-07-26 | Lightning protection device for blades of wind turbine generator |
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| Country | Link |
|---|---|
| CN (1) | CN203404027U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253057A (en) * | 2018-08-28 | 2019-01-22 | 新疆金风科技股份有限公司 | The installation method of the lightning-protection system of permanent magnet direct-driving aerogenerator group |
| CN112727711A (en) * | 2021-01-04 | 2021-04-30 | 株洲时代新材料科技股份有限公司 | Lightning protection device for wind driven generator blade |
-
2013
- 2013-07-26 CN CN201320453651.7U patent/CN203404027U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109253057A (en) * | 2018-08-28 | 2019-01-22 | 新疆金风科技股份有限公司 | The installation method of the lightning-protection system of permanent magnet direct-driving aerogenerator group |
| CN112727711A (en) * | 2021-01-04 | 2021-04-30 | 株洲时代新材料科技股份有限公司 | Lightning protection device for wind driven generator blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140122 |