CN204402758U - A kind of safe operation device based on wind-power electricity generation group - Google Patents
A kind of safe operation device based on wind-power electricity generation group Download PDFInfo
- Publication number
- CN204402758U CN204402758U CN201420753380.1U CN201420753380U CN204402758U CN 204402758 U CN204402758 U CN 204402758U CN 201420753380 U CN201420753380 U CN 201420753380U CN 204402758 U CN204402758 U CN 204402758U
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- China
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- wind
- electricity generation
- safe operation
- break
- device based
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- Expired - Fee Related
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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)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
A kind of safe operation device based on wind-power electricity generation group, it mainly comprises support assembly, rotor, rear end cover, break stator, brake rotor assembly, back-up ring, break stator is fixedly connected with the rear end cover of motor and axle head and support assembly are equipped with before passing rotor, axle head before brake rotor assembly pressing in electric machine rotor is also connected and fixed on the axially outside of break stator with it, back-up ring is connected and fixed on the axially outside of brake rotor assembly through rotor; It solve adopt standby power supply to make blade after the unexpected power-off of pitch-controlled system returns power maintenance that home causes, maintenance cost is high, the bad connection of motor circuit, proximity switch loosens and the bad problem taken place frequently such as inclination; Be widely used in supporting the use of various wind generating set pitch control system.
Description
Technical field
The utility model relates to a kind of safe operation device based on wind-power electricity generation group.
Background technique
When there is extreme wind speeds or emergency is shut down, wind-power electricity generation group variable blade control system must ensure to make blade can forward the home of blower fan setting to, thus the safety and reliability of the system of guarantee; At present, the domestic You Duo company being engaged in wind electricity change paddle AC motor and manufacturing, but the problem being all after employing standby power supply solves the unexpected power-off of pitch-controlled system, blade returns home; This just causes, and standby power supply overhauls, maintenance cost is high, the bad connection of motor circuit, and proximity switch loosens and inclination etc. is bad takes place frequently.
Summary of the invention
For above-mentioned situation, the utility model provides a kind of safe operation device based on wind-power electricity generation group, can, in the unexpected power-off of wind power generating set or when having extraneous factor to cause pitch-controlled system fault to quit work, make blade can rotate along with natural wind when one-way brake and be turned back to home; And structure is simple, reliable performance, operating cost is low, is easy to penetration and promotion.
For achieving the above object, a kind of safe operation device based on wind-power electricity generation group, it mainly comprises support assembly, rotor, rear end cover, break stator, brake rotor assembly, back-up ring, described break stator is fixedly connected with the rear end cover of motor and axle head and support assembly are equipped with before passing rotor, axle head before brake rotor assembly pressing in electric machine rotor is also connected and fixed on the axially outside of break stator with it, be connected and fixed a back-up ring outside axis of brake rotor assembly.
In order to implementation structure, effect optimization, its further step is: brake rotor assembly and rotor are connected and fixed through key; Brake rotor assembly comprises and being made up of break flange plate, oil sealing, friction disk, key, rivet, unilateral bearing; Connect through key in unilateral bearing press-in break flange plate; Oil sealing is loaded on unilateral bearing and is axially fixedly connected with break flange plate in outside; Friction disk is fixedly connected with break flange plate through rivet; Assemblage gap between outside friction disk and break stator shaft orientation is 0.25 ~ 0.4mm.
A kind of safe operation device based on wind-power electricity generation group of the utility model, it mainly comprises support assembly, rotor, rear end cover, break stator, brake rotor assembly, back-up ring, described break stator is fixedly connected with the rear end cover of motor and axle head and support assembly are equipped with before passing rotor, axle head before brake rotor assembly pressing in electric machine rotor is also connected and fixed on the axially outside of break stator with it, back-up ring is connected and fixed on the technological scheme in the axially outside of brake rotor assembly through rotor; It solve adopt standby power supply to make blade after the unexpected power-off of pitch-controlled system returns power maintenance that home causes, maintenance cost is high, the bad connection of motor circuit, proximity switch loosens and the bad problem taken place frequently such as inclination.
The beneficial effect that the utility model is produced compared to existing technology:
I, adopt Spielpassung between the utility model break stator and brake rotor assembly, can go slick by effective guarantee brake rotor, reliable performance;
II, the utility model adopts the structure of unilateral bearing, can effective guarantee have a power failure or disorderly closedown time, blade can only clockwise unidirectional rotary, thus the safety and reliability of the system of guarantee;
III, the structure that the utility model adopts can make blade be turned back to home under the promotion of natural wind, can effectively prevent dynamic braking device locking, ensures that wind-power electricity generation group can safe operation and parking;
IV, the utility model is rotatable when without the need to utilizing mechanical structure to make blade in unexpected power-off when standby power supply greatly reduces cost to home, saves installing space, and can ensure the safe operation of wind-power electricity generation group;
V, the utility model structure is simple, compact, operation, easy for installation, saved installing space, greatly expanded using scope; Manufacture cost significantly reduces, and is easy to industrialized production, non-environmental-pollution, wide market, is convenient to promote the use of.
The utility model is widely used in supporting the use of various wind generating set pitch control system.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model.
Fig. 2 is the structure sectional view of the utility model brake rotor assembly.
In figure: 1, support assembly, 2, rotor, 3, rear end cover, 4, break stator, 5, brake rotor assembly, 6, back-up ring, 51, break flange plate, 52, oil sealing, 53, key, 54, friction disk, 55, rivet, 56, unilateral bearing.
Embodiment
See accompanying drawing, the utility model is achieved in that a kind of safe operation device based on wind-power electricity generation group, it mainly comprises support assembly 1, rotor 2, rear end cover 3, break stator 4, brake rotor assembly 5, back-up ring 6, described break stator 4 is fixedly connected with the rear end cover 3 of motor and axle head and support assembly 1 are equipped with before passing rotor 2, axle head before brake rotor assembly 5 pressing in electric machine rotor 2 is also connected and fixed on the axially outside of break stator 4 with it, be connected and fixed a back-up ring 6 outside axis of brake rotor assembly 5; Brake rotor assembly 5 and rotor 2 are connected and fixed through key.
As shown in Figure 2, brake rotor assembly 5 of the present utility model comprises and being made up of break flange plate 51, oil sealing 52, friction disk 54, key 53, rivet 55, unilateral bearing 56; Unilateral bearing 56 is pressed in break flange plate 51 and connects through key 53, its objective is when power failure or disorderly closedown, and blade can only clockwise unidirectional rotary; Oil sealing 52 is loaded on unilateral bearing 56 and is axially fixedly connected with break flange plate 51 in outside, and it act as and prevents unilateral bearing 56 from departing from working position, and provides lubrication for its rotation; Friction disk 54 is fixedly connected with break flange plate 51 through rivet 55; Utilize the shaft shoulder to locate, make friction disk 54 and the assemblage gap of break stator 4 axially between outside be generally 0.25 ~ 0.4mm, be preferably 0.3mm, effectively can prevent from mutually rotating producing frictional force, can ensure that brake rotor goes slick, stable.
By reference to the accompanying drawings, working principle of the present utility model: during energising work, electromagnetic brake is opened, and rotates between break stator 4 and brake rotor assembly 5, and driven by motor blade both direction can be rotated, and realizes blade and normally works; When there is suddenly power-off or fault in pitch-controlled system, electromagnetic brake inhale and, brake rotor assembly 5 shuts down, at this moment rotor 2 drives unilateral bearing 56 inner ring to rotate by clockwise direction, natural wind promotes the revolution of blade one direction, until blade inlet edge is just parallel with wind direction to dead ahead, reaches aerodynamic braking time minimum by air lift and make blade static; Achieve blower fan blade and return oar safely, dynamic braking device locking can be prevented, ensure that wind-power electricity generation group can safe operation and parking.
Claims (7)
1. the safe operation device based on wind-power electricity generation group, it is characterized in that mainly comprising support assembly (1), rotor (2), rear end cover (3), break stator (4), brake rotor assembly (5), back-up ring (6), described break stator (4) is fixedly connected with the rear end cover (3) of motor and passes rotor (2) front axle head and support assembly (1) and is equipped with, brake rotor assembly (5) pressing in electric machine rotor (2) front axle head is also connected and fixed on the axially outside of break stator (4) with it, the axis outside of brake rotor assembly (5) is connected and fixed a back-up ring (6).
2. a kind of safe operation device based on wind-power electricity generation group according to claim 1, is characterized in that brake rotor assembly (5) and rotor (2) are connected and fixed through key.
3. a kind of safe operation device based on wind-power electricity generation group according to claim 1, is characterized in that brake rotor assembly (5) comprises and is made up of break flange plate (51), oil sealing (52), friction disk (54), key (53), rivet (55), unilateral bearing (56).
4. a kind of safe operation device based on wind-power electricity generation group according to claim 3, is characterized in that connecting through key (53) in unilateral bearing (56) press-in break flange plate (51).
5. a kind of safe operation device based on wind-power electricity generation group according to claim 3, is characterized in that oil sealing (52) is loaded on unilateral bearing (56) and is axially fixedly connected with break flange plate (51) in outside.
6. a kind of safe operation device based on wind-power electricity generation group according to claim 3, is characterized in that friction disk (54) is fixedly connected with break flange plate (51) through rivet (55).
7. a kind of safe operation device based on wind-power electricity generation group according to claim 3, is characterized in that friction disk (54) and the assemblage gap of break stator (4) axially between outside are 0.25 ~ 0.4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753380.1U CN204402758U (en) | 2014-12-05 | 2014-12-05 | A kind of safe operation device based on wind-power electricity generation group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420753380.1U CN204402758U (en) | 2014-12-05 | 2014-12-05 | A kind of safe operation device based on wind-power electricity generation group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204402758U true CN204402758U (en) | 2015-06-17 |
Family
ID=53426624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420753380.1U Expired - Fee Related CN204402758U (en) | 2014-12-05 | 2014-12-05 | A kind of safe operation device based on wind-power electricity generation group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204402758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422382A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Yawing variable-pitch drive unit with overload protection function |
-
2014
- 2014-12-05 CN CN201420753380.1U patent/CN204402758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105422382A (en) * | 2015-12-28 | 2016-03-23 | 南京高速齿轮制造有限公司 | Yawing variable-pitch drive unit with overload protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20150617 Termination date: 20201205 |