CN103899484B - A kind of Wind turbines brake gear and brake method - Google Patents
A kind of Wind turbines brake gear and brake method Download PDFInfo
- Publication number
- CN103899484B CN103899484B CN201410155484.7A CN201410155484A CN103899484B CN 103899484 B CN103899484 B CN 103899484B CN 201410155484 A CN201410155484 A CN 201410155484A CN 103899484 B CN103899484 B CN 103899484B
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- Prior art keywords
- brake
- wind turbines
- pressure handle
- pressure
- auxiliary device
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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
Abstract
The present invention proposes a kind of Wind turbines brake gear and brake method, and this brake gear includes：Auxiliary device, is arranged at that described Wind turbines are axially external, and described auxiliary device is provided with multiple symmetrical symmetrical air gaps, is provided with inner slide between described auxiliary device and described axle, and described auxiliary device radial outside is provided with external slideway；By pressure handle, be arranged in the described symmetrical air gap of one of them, described by pressure connecting rod is provided with pressure handle, described entered described inner slide or external slideway by pressure handle under described pressure connecting rod acts on；Brake tile, be arranged in described by pressure handle, wherein, described brake tile is connected with spring, the described spring other end is connected in the fixing device of described Wind turbines.Flexibility brake gear proposed by the present invention and method, solve the problems, such as brake in case of emergency in current running of wind generating set, are capable of the gentle brake of Wind turbines, it is to avoid blower fan axle fracture.
Description
Technical field
The present invention relates to wind power generation field, and particularly to a kind of Wind turbines brake gear and brake method.
Background technology
Wind energy, as a kind of regenerative resource of cleaning, is increasingly paid attention to by countries in the world.Its amount of accumulateing is huge, the whole world
Wind energy be about 2.74 × 109MW, wherein available wind energy is 2 × 107MW, than the water energy total amount that can develop on the earth
Also want big 10 times.
THE WIND ENERGY RESOURCES IN CHINA is enriched, the wind energy content that can develop about 1,000,000,000 kW, and wherein, land wind energy content is about
2.53 hundred million kW (land is liftoff 10m height material computation), marine can development and utilization wind energy content about 7.5 hundred million kW, altogether
1000000000 kW.And 2003 end of the year whole nation electric power installation about 5.67 hundred million kW.
Wind is that do not have one of energy of public hazards.And it is inexhaustible.For hydropenia, short bunker and traffic
The offshore islands of inconvenience, Pastoral Areas, mountain area and plateau area, utilize wind-power electricity generation treatment in accordance with local conditions, are especially suitable for, having greatly can
For.Wind-power electricity generation just forms one upsurge in the world because wind-power electricity generation does not need to use fuel, also will not produce radiation or
Air pollution.
The kinetic energy kept watch is transformed into mechanical kinetic energy, then mechanical energy is converted into electric power kinetic energy, here it is wind-power electricity generation.Wind-force
The principle generating electricity, is to drive air vane rotation using wind-force, then through booster engine by the speed rotating lifting, to promote to generate electricity
Machine generates electricity.According to current windmill technology, about three meters per second of mild wind speed (degree of mild wind), just can start to send out
Electricity.Device required for wind-power electricity generation, referred to as Wind turbines.
Utilization with wind power new energy is more and more extensive, the also more and more higher of the requirement to Wind turbines, and protection is also more next
Stricter.It is necessary to Wind turbines emergency shutdown especially when the severe operating condition such as storm occurs, when Wind turbines become oar
System can not normally become during oar it is necessary to the brake system of Wind turbines carries out emergency brake.Present brake system is substantially
It is all rigid brake, only to consume the kinetic energy of blower fan by friction.And this is it is easy to cause fan shaft than relatively hazardous
Situations such as fracture.
Content of the invention
The present invention proposes a kind of Wind turbines brake gear and brake method, its object is to solve current Wind turbines fortune
Brake problem in case of emergency in row, all of brake system is all rigid brake it is easy to cause fan shaft at present
Situations such as fracture, the present invention proposes flexible brake gear and method, to realize the gentle brake of Wind turbines.
In order to achieve the above object, the present invention proposes a kind of Wind turbines brake gear, including：
Auxiliary device, is arranged at that described Wind turbines are axially external, and described auxiliary device is provided with multiple symmetrical
Symmetrical air gap, is provided with inner slide between described auxiliary device and described axle, is provided with external slideway outside described auxiliary device；
By pressure handle, be arranged in the described symmetrical air gap of one of them, described by pressure connecting rod, institute are provided with pressure handle
State and entered described inner slide or external slideway by pressure handle under described pressure connecting rod acts on；
Brake tile, be arranged in described by pressure handle, wherein, described brake tile is connected with spring, the described spring other end
It is connected in the fixing device of described Wind turbines.
Further, on described auxiliary device, the quantity of the symmetrical air gap of setting is 4.
Further, described pressure connecting rod be located at described brake tile side by pressure handle.
Further, described pressure connecting rod be located at described brake tile both sides by pressure handle.
In order to achieve the above object, the present invention also proposes a kind of Wind turbines brake method, comprises the following steps：
When Wind turbines normally run, described brake gear is failure to actuate, and described is in the symmetrical of auxiliary device by pressure handle
In air-gap；
When described brake gear carries out brake operation, described pressure connecting rod presses to described by pressure handle, described by pressure handle
Lower into by pressure handle inner slide so that described brake tile is in close contact with axle, described spring is elongated under axle rotation, and axle is subject to
Power increases, thus reducing Wind turbines rotating speed；
Before entering into next symmetrical air gap, the power on described pressure connecting rod cancels, and pressure connecting rod rises, now
Entered by pressure handle and be subject to pressure handle inner slide, and then enter by pressure handle external slideway, under spring force, return to auxiliary device air
Gap position；
Then described pressure connecting rod presses to by pressure handle again, and brake tile is pressed down again, enters next deceleration bout,
After the deceleration bout of one or many, the rotating speed of Wind turbines is more and more slower, until Wind turbines rotating speed is reduced to 0, brake
Process terminates.
Wind turbines brake gear proposed by the present invention and brake method, are subject to pressure handle, brake tile using pressure connecting rod pressure
With the flexible braking system of spring cooperation, reduce wind using multiple deceleration bouts that brake gear repeatedly passes in and out symmetrical air gap
Group of motors rotating speed, solves the problems, such as brake in case of emergency in current running of wind generating set, at present all of brake system
System is all rigid brake it is easy to situations such as cause blower fan axle fracture, and the present invention proposes flexible brake gear and method, to realize
The gentle brake of Wind turbines.
Brief description
Fig. 1 show the Wind turbines brake device structure schematic diagram of present pre-ferred embodiments.
Fig. 2 show the auxiliary device side view of present pre-ferred embodiments.
Specific embodiment
Provide the specific embodiment of the present invention below in conjunction with accompanying drawing, but the invention is not restricted to following embodiment.Root
According to following explanation and claims, advantages and features of the invention will become apparent from.It should be noted that, accompanying drawing is all using very simple
The form changed and all using non-accurately ratio, be only used for conveniently, lucidly aid in illustrating the purpose of the embodiment of the present invention.
Refer to Fig. 1 and Fig. 2, Fig. 1 show the Wind turbines brake device structure schematic diagram of present pre-ferred embodiments,
Fig. 2 show the auxiliary device side view of present pre-ferred embodiments.The present invention proposes a kind of Wind turbines brake gear, bag
Include：Auxiliary device 200, is arranged at outside described Wind turbines axle 100, described auxiliary device 200 is provided with multiple symmetrical
Symmetrical air gap 210, be provided with inner slide 220, described auxiliary device 200 between described auxiliary device 200 and described axle 100
Radial outside is provided with external slideway 230；By pressure handle 300, it is arranged in the described symmetrical air gap 210 of one of them, described be subject to
Pressure connecting rod 400 is provided with pressure handle 300, described entered described inner slide by pressure handle 300 under described pressure connecting rod 400 acts on
220 or external slideway 230；Brake tile 500, be arranged in described by pressure handle 300, wherein, described brake tile 500 is connected with bullet
Spring 600, described spring 600 other end is connected in the fixing device of described Wind turbines.
According to present pre-ferred embodiments, on described auxiliary device 200, the quantity of the symmetrical air gap 210 of setting is 4,
Symmetrical air gap 210 in auxiliary device 200 is not necessarily four, but must be symmetrical.Described pressure connecting rod 400 is located at institute
State brake tile 500 side by pressure handle 300, according to another preferred embodiment of the present invention, described pressure connecting rod 400 also can be simultaneously
Be arranged at described brake tile 500 both sides by pressure handle 300.Each group of Wind turbines brake gear all comprises spring 600, brake
Watts 500, pressure connecting rod 400, be subject to pressure handle 300, auxiliary device 200 etc..Wind turbines can have one group or multigroup brake gear,
It is desirable to be arranged symmetrically, improve braking efficiency.
The present invention also proposes a kind of Wind turbines brake method, comprises the following steps：
When Wind turbines normally run, described brake gear is failure to actuate, and described is in auxiliary device 200 by pressure handle 300
Symmetrical air gap 210 in；
When described brake gear carries out brake operation, brake system provides instruction, and described pressure connecting rod 400 presses to institute
State by pressure handle 300, described lowered into by pressure handle inner slide 220 so that described brake tile 500 is tight with axle 100 by pressure handle 300
Contact, described spring 600 is elongated under axle 100 rotation, and axle 100 stress increases, thus reducing Wind turbines rotating speed, spring
600 one end are fixed on blower fan, and the other end is connected on brake tile 500, so the size of frictional force is equal to the spring of spring 600
Power, and spring 600 is gradually elongated with the rotation of fan shaft 100, also with being gradually increased, the rotating speed of blower fan will for spring force
More and more slower；
Before entering into next symmetrical air gap 210, the power on described pressure connecting rod 400 cancels, pressure connecting rod 400
Rise, entered by pressure handle 300 and be subject to pressure handle inner slide 220, and then entrance is subject to pressure handle external slideway 230, in the effect of spring force
Under, return to air-gap 210 position of auxiliary device 200；
Then described pressure connecting rod 400 presses to by pressure handle 300 again, and brake tile 500 is pressed down again, enters next
Deceleration bout, after the deceleration bout of one or many, the rotating speed of Wind turbines is more and more slower, until Wind turbines rotating speed fall
For 0, brake process terminates.
In sum, Wind turbines brake gear proposed by the present invention and brake method, is pressed using pressure connecting rod pressurized
Handle, the flexible braking system of brake tile and spring cooperation, is returned using multiple decelerations that brake gear repeatedly passes in and out symmetrical air gap
Close to reduce Wind turbines rotating speed, solve the problems, such as brake in case of emergency in current running of wind generating set, current institute
Some brake system are all rigid brakes it is easy to situations such as cause blower fan axle fracture, the present invention propose flexible brake gear and
Method, to realize the gentle brake of Wind turbines.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.The affiliated skill of the present invention
Has usually intellectual, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations in art field.Cause
This, protection scope of the present invention ought be defined depending on those as defined in claim.
Claims (5)
1. a kind of Wind turbines brake gear is it is characterised in that include：
Auxiliary device, is arranged at the axially external of described Wind turbines axle, described auxiliary device is provided with multiple symmetrical
Symmetrical air gap, is provided with inner slide between described auxiliary device and described axle, and described auxiliary device radial outside is provided with outer
Slideway；
By pressure handle, be arranged in one of them of described symmetrical air gap, described by pressure connecting rod is provided with pressure handle, described be subject to
Pressure handle enters described inner slide or external slideway under described pressure connecting rod acts on；
Brake tile, be arranged in described wherein, described brake tile is connected with spring by pressure handle, the described spring other end connects
In the fixing device of described Wind turbines.
2. Wind turbines brake gear according to claim 1 is it is characterised in that arrange on described auxiliary device is symmetrical
The quantity of air-gap is 4.
3. Wind turbines brake gear according to claim 1 is it is characterised in that described pressure connecting rod is located at described brake
Watt side by pressure handle.
4. Wind turbines brake gear according to claim 1 is it is characterised in that described pressure connecting rod is located at described brake
Watt both sides by pressure handle.
5. a kind of usage right requires the brake method of the Wind turbines brake gear described in 1 it is characterised in that including following step
Suddenly：
When Wind turbines normally run, described brake gear is failure to actuate, the described symmetrical air being in auxiliary device by pressure handle
In gap；
When described brake gear carries out brake operation, described pressure connecting rod presses to described by pressure handle, described is declined by pressure handle
Enter by pressure handle inner slide so that described brake tile is in close contact with axle, described spring is elongated under axle rotation, and axle stress adds
Greatly, thus reducing Wind turbines rotating speed；
Before entering into next symmetrical air gap, the power on described pressure connecting rod cancels, and pressure connecting rod rises, now pressurized
Handle enters and is subject to pressure handle inner slide, and then enters by pressure handle external slideway, under spring force, returns to auxiliary device air-gap position
Put；
Then described pressure connecting rod presses to by pressure handle again, and brake tile is pressed down again, enters next deceleration bout, with
After the deceleration bout of one or many, the rotating speed of Wind turbines is more and more slower, until Wind turbines rotating speed is reduced to 0, brake process
Terminate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155484.7A CN103899484B (en) | 2014-04-17 | 2014-04-17 | A kind of Wind turbines brake gear and brake method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410155484.7A CN103899484B (en) | 2014-04-17 | 2014-04-17 | A kind of Wind turbines brake gear and brake method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103899484A CN103899484A (en) | 2014-07-02 |
| CN103899484B true CN103899484B (en) | 2017-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410155484.7A Expired - Fee Related CN103899484B (en) | 2014-04-17 | 2014-04-17 | A kind of Wind turbines brake gear and brake method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112869635A (en) * | 2019-11-29 | 2021-06-01 | 燕成祥 | Cleaning robot with fan brake device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401705Y (en) * | 1999-09-16 | 2000-10-18 | 康继航 | Pitch variable speed regulator for wind electricity generator |
| CN101660503A (en) * | 2008-08-29 | 2010-03-03 | 江苏苏亚机电制造有限公司 | Flexible braking system of wind generating set |
| DE102009026131B3 (en) * | 2009-07-07 | 2011-02-10 | Emb Systems Ag | Braking assembly of wind turbine power plant, includes guide component fitting into recess such that floating brake yoke slides upon it |
| EP1959131B1 (en) * | 2007-01-10 | 2012-07-11 | Nordex Energy GmbH | Wind turbine with a hydraulically actuated rotor brake |
| CN203835623U (en) * | 2014-04-17 | 2014-09-17 | 上海电机学院 | Wind turbine braking device |
-
2014
- 2014-04-17 CN CN201410155484.7A patent/CN103899484B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401705Y (en) * | 1999-09-16 | 2000-10-18 | 康继航 | Pitch variable speed regulator for wind electricity generator |
| EP1959131B1 (en) * | 2007-01-10 | 2012-07-11 | Nordex Energy GmbH | Wind turbine with a hydraulically actuated rotor brake |
| CN101660503A (en) * | 2008-08-29 | 2010-03-03 | 江苏苏亚机电制造有限公司 | Flexible braking system of wind generating set |
| DE102009026131B3 (en) * | 2009-07-07 | 2011-02-10 | Emb Systems Ag | Braking assembly of wind turbine power plant, includes guide component fitting into recess such that floating brake yoke slides upon it |
| CN203835623U (en) * | 2014-04-17 | 2014-09-17 | 上海电机学院 | Wind turbine braking device |
Non-Patent Citations (1)
| Title |
|---|
| 风力发电机组刹车系统关键技术研究;徐晓光;《中国优秀硕士学位论文全文数据库 工程科技Ⅱ辑》;20120915;C042-27 * |
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| CN103899484A (en) | 2014-07-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Inventor after: Li Yixin Inventor after: Zhang Yanchi Inventor before: Li Yixin |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 Termination date: 20200417 |