CN205001128U - Wind generating set becomes lightning protection of oar bearing - Google Patents

Wind generating set becomes lightning protection of oar bearing Download PDF

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Publication number
CN205001128U
CN205001128U CN201520763540.5U CN201520763540U CN205001128U CN 205001128 U CN205001128 U CN 205001128U CN 201520763540 U CN201520763540 U CN 201520763540U CN 205001128 U CN205001128 U CN 205001128U
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CN
China
Prior art keywords
thunder
generating set
wind generating
lightning
leading
Prior art date
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Active
Application number
CN201520763540.5U
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Chinese (zh)
Inventor
许奇武
严晓林
王铭
孙振宇
杨峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wu Weiyue
Original Assignee
BEIJING WANYUAN INDUSTRY CO LTD
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Priority to CN201520763540.5U priority Critical patent/CN205001128U/en
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Publication of CN205001128U publication Critical patent/CN205001128U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

Abstract

The utility model belongs to the technical field of a wind generating set, concrete disclose a wind generating set becomes lightning protection of oar bearing, this lightning protection is including installing wheel hub foundry goods fixed with leading the thunder copper bar, fix leading the thunder downlead and fixing the thunder and lightning of leading that becomes oar bearing inner race bottom at wind generating set and brush on wind generating set becomes the metal flange dish of oar bearing root of blade on the boss that becomes the oar bearing at wind generating set, the thunder copper bar of leading pass through fixing bolt and install fixed on with the boss, lead thunder and lightning brush bottom down the terminal surface with lead end face contaction on the thunder copper bar, the thunder and lightning brush of leading be two, the thunder downlead upper portion of leading be located two adjacent wind generating set and become between the oar bearing blade, lead on the metal flange dish of fixing at the root of blade thunder downlead bottom. The harm of lightning current to becoming the oar bearing can have been avoided in this lightning protection, has conducted the thunder -strike current effectively, guarantees the lightning -arrest effect of wind turbine generator system blade and change oar bearing.

Description

The lightning protection of a kind of wind generating set pitch control bearing
Technical field
The utility model belongs to a kind of wind-driven generator technical group field, is specifically related to the lightning protection of a kind of wind generating set pitch control bearing.
Background technique
Existing blade of wind-driven generator is provided with at blade tip position and leads thunder device; after thunder and lightning hits and leads thunder device; lightning current is delivered to the metal flange of root of blade by down lead; then the pitch variable bearings inner ring with Flange joint is passed to; successively through pitch variable bearings ball, pitch variable bearings outer ring is delivered to wheel hub and completes lightning protection.The deficiency of the program is that lightning current needs, through critical component pitch variable bearings ball, easily to cause bearing generation electro erosion, finally causes pitch variable bearings to damage.
Summary of the invention
The purpose of this utility model is to provide the lightning protection of a kind of wind generating set pitch control bearing, the thunder-strike current that blade can be made to receive is not by transmitting between pitch variable bearings Internal and external cycle, be directly delivered on hub cast, not only avoid the infringement of lightning current to pitch variable bearings, also effectively conduct thunder-strike current, ensure the lightning-arrest effect of wind power generation unit blade and pitch variable bearings.
Realize the technological scheme of the utility model object: the lightning protection of a kind of wind generating set pitch control bearing, this lightning protection comprises leading thunder copper bar, be fixed on leading thunder down lead and being fixed on the metal flange of wind generating set pitch control bearing root of blade and lead thunder and lightning brush bottom wind generating set pitch control bearing inner race on the fixing boss of the hub cast being arranged on wind generating set pitch control bearing.
Described thunder copper bar of leading is arranged on fixing boss by fixing bolt.
Described lead bottom thunder and lightning brush lower end surface and lead thunder copper bar upper-end surface and contact.
Described thunder and lightning brush of leading is two.
Described leads thunder down lead top between adjacent two wind generating set pitch control bearing blades, leads bottom thunder down lead and is fixed on the metal flange of root of blade.
Advantageous Effects of the present utility model is: the utility model is that the thunder line of leading of vane tip is directly connected on the metal flange of blade root; flange plate is connected with the inner ring of pitch variable bearings; the inner side of pitch variable bearings inner ring is fixed two lead thunder carbon brush by being used blade bolt; carbon brush wheel hub leads thunder copper bar upper-end surface rotating contact with being fixed on; lightning current can be directly delivered to wheel hub by leading thunder carbon brush and leading thunder copper bar; avoid pitch variable bearings; complete lightning protection, thus available protecting pitch variable bearings does not damage by lightning current.
Accompanying drawing explanation
Fig. 1 is a kind of wind generating set pitch control bearing provided by the utility model lightning protection and wind power generating set assembly structure schematic three dimensional views;
Fig. 2 is a kind of wind generating set pitch control bearing provided by the utility model lightning protection and wind power generating set assembly structure cross-sectional schematic.
In figure: 1. hub cast, 2. pitch variable bearings outer ring, 3. pitch variable bearings inner ring, 4. lead thunder copper bar, 5. fixing bolt, 6. leads thunder and lightning brush, 7. fixing lug boss, 8. blade, 9. leads thunder down lead, 10. blade fixing bolt, 11. metal flanges.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of wind generating set pitch control bearing provided by the utility model lightning protection comprises to be led thunder copper bar 4, fixing bolt 5, leads thunder and lightning brush 6 and lead thunder down lead 9, the hub cast 1 of wind generating set pitch control bearing is provided with the fixing boss 7 of circular arc, the shape leading thunder copper bar 4 is identical with the shape of fixing boss 7, leading thunder copper bar 4 is arranged on fixing with on boss 7 by fixing bolt 5, in order to ensure the conductive effect of leading between thunder copper bar 4 and hub cast 1, any preservative treatment is not done in the upper-end surface of fixing lug boss 7.
Lead thunder down lead 9 top between adjacent two wind generating set pitch control bearing blades 8, and lead be fixed on blade 8 root bottom thunder down lead 9 metal flange 11 on, metal flange 11 is installed on wind generating set pitch control bearing inner race 3, metal flange 11 and pitch variable bearings inner ring 3 all circumferentially have 72 tapped holes, metal flange 11 is fixedly connected with by 72 blade fixing bolts 10, tapped holes with pitch variable bearings inner ring 3, blade fixing bolt 10 and lead between thunder copper bar 4 upper-end surface and leave gap.Leading thunder and lightning brush 6 for two is arranged on inside pitch variable bearings inner ring 3, leads thunder and lightning brush 6 for two and is fixed on pitch variable bearings inner ring 3 by two fixing bolts 10, two lower end surfaces of leading thunder and lightning brush 6 all with lead thunder copper bar 4 upper-end surface and contact.Pitch variable bearings inner ring 3 to be enclosed within pitch variable bearings outer ring 2 and to leave gap between the two; Be provided with hub cast 1 bottom pitch variable bearings outer ring 2, bearing outer ring 2, hub cast 1 all circumferentially have 82 tapped holes, are fixedly connected with between bearing outer ring 2 with hub cast 1 by 82 bolts, tapped holes.
As depicted in figs. 1 and 2, the working principle of a kind of wind generating set pitch control bearing provided by the utility model lightning protection is as follows: when the blade 8 of wind generating set pitch control bearing becomes oar rotation, pitch variable bearings inner ring 3, two is led thunder and lightning brush 6 and is rotated relative to hub cast 1 together with blade 8, and it is motionless relative to wheel hub 1, pitch variable bearings outer ring 2 to lead thunder copper bar 4.Leading thunder and lightning brush 6 and lead for two can rotational slide between thunder copper bar 4.The lightning current conducted by leading thunder down lead 9 leads thunder and lightning brush 6 by metal flange 11, pitch variable bearings inner ring 3, two, conduct to and lead thunder copper bar 4 and realize uninterrupted conduction, when not only not becoming oar by blade 8, the rotation of wind generating set pitch control bearing affects, also effectively avoid the transmission of electric current between pitch variable bearings inner ring 3 and pitch variable bearings outer ring 2, prevent lightning current from producing corrosion to wind generating set pitch control bearing, effectively can ensure the lightning protection safety of wind power generating set.
In conjunction with the accompanying drawings and embodiments the utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from the utility model aim.The content be not described in detail in the utility model all can adopt prior art.

Claims (5)

1. a wind generating set pitch control bearing lightning protection, is characterized in that: this lightning protection comprise on the fixing boss (7) of the hub cast (1) being arranged on wind generating set pitch control bearing lead thunder copper bar (4), be fixed on the metal flange (11) of wind generating set pitch control bearing blade (8) root lead thunder down lead (9) and be fixed on wind generating set pitch control bearing inner race (3) bottom lead thunder and lightning brush (6).
2. a kind of wind generating set pitch control bearing according to claim 1 lightning protection, is characterized in that: described thunder copper bar (4) of leading is arranged on fixing boss (7) by fixing bolt (5).
3. a kind of wind generating set pitch control bearing according to claim 1 and 2 lightning protection, is characterized in that: described lead lower end surface, thunder and lightning brush (6) bottom and lead thunder copper bar (4) upper-end surface and contact.
4. a kind of wind generating set pitch control bearing according to claim 3 lightning protection, is characterized in that: described thunder and lightning brush (6) of leading is two.
5. a kind of wind generating set pitch control bearing according to claim 4 lightning protection, it is characterized in that: described thunder down lead (9) top of leading is positioned between adjacent two wind generating set pitch control bearing blades (8), lead thunder down lead (9) bottom and be fixed on the metal flange (11) of blade (8) root.
CN201520763540.5U 2015-09-29 2015-09-29 Wind generating set becomes lightning protection of oar bearing Active CN205001128U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520763540.5U CN205001128U (en) 2015-09-29 2015-09-29 Wind generating set becomes lightning protection of oar bearing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520763540.5U CN205001128U (en) 2015-09-29 2015-09-29 Wind generating set becomes lightning protection of oar bearing

Publications (1)

Publication Number Publication Date
CN205001128U true CN205001128U (en) 2016-01-27

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520763540.5U Active CN205001128U (en) 2015-09-29 2015-09-29 Wind generating set becomes lightning protection of oar bearing

Country Status (1)

Country Link
CN (1) CN205001128U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3690238A1 (en) * 2019-01-30 2020-08-05 Siemens Gamesa Renewable Energy A/S Current transfer arrangement of a wind turbine lightning protection system
CN113623148A (en) * 2021-08-03 2021-11-09 浙江运达风电股份有限公司 Lightning device is led to offshore wind turbine blade bypass

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3690238A1 (en) * 2019-01-30 2020-08-05 Siemens Gamesa Renewable Energy A/S Current transfer arrangement of a wind turbine lightning protection system
CN113623148A (en) * 2021-08-03 2021-11-09 浙江运达风电股份有限公司 Lightning device is led to offshore wind turbine blade bypass

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20221021

Address after: No.8, Huancheng Road, Fengcheng Town, Tianzhu County, Qiandongnan Miao and Dong Autonomous Prefecture, Guizhou 556600

Patentee after: Wu Weiyue

Address before: 100176 Aerospace Science Park, No. 6, Jinxiu Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing

Patentee before: BEIJING WANYUAN INDUSTRY Co.,Ltd.