CN202946318U - Wind generating set - Google Patents
Wind generating set Download PDFInfo
- Publication number
- CN202946318U CN202946318U CN2012206283369U CN201220628336U CN202946318U CN 202946318 U CN202946318 U CN 202946318U CN 2012206283369 U CN2012206283369 U CN 2012206283369U CN 201220628336 U CN201220628336 U CN 201220628336U CN 202946318 U CN202946318 U CN 202946318U
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- China
- Prior art keywords
- brake
- generating set
- brake disc
- hydraulic brake
- wind power
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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
Abstract
The utility model discloses a wind generating set which comprises a generator outer shell, a stator, a rotor and a rotor rotary disc, wherein the stator, the rotor and the rotor rotary disc are arranged in the generator outer shell. The rotor rotary disc is connected with a brake disc, a hydraulic brake is fixedly arranged in the generator outer shell, and the edge of the brake disc is arranged in the hydraulic brake. A piston of the hydraulic brake abuts against or separates from the brake disc along flexible movement. A novel designed brake mechanism is adopted by the wind generating set so as to enable a rotating shaft to be designed to be shorter, shorten a brake route, ensure stress condition of the rotating shaft, prolong service life of the rotating shaft and facilitate installing and maintenance of a fastening part of a main shaft. The brake disc is more close to the main shaft, and the axial displacement of the brake disc is reduced, so that the wind generating set is suitable for installation requirements of the hydraulic brake sold by the market, and simultaneously the wind generating set provides a big and safe operation and maintenance space inside a generator. The hydraulic brake is arranged in the generator outer shell, conducts internal brake for the brake disc, and facilitates operation, such as installing and maintenance, of the hydraulic brake.
Description
Technical field
The utility model relates to technical field of wind power generation, particularly relates to a kind of wind power generating set that adopts new design braking mechanism.
Background technique
To the increase day by day of wind energy demand, therefore the single-machine capacity of wind-driven generator, cancels speed increasing mechanism also in continuous increase, directly drives by wind energy conversion system the inevitable development trend that low-speed generator becomes wind generating technology along with in recent years.That direct drive generator has is simple in structure, efficient is high, the installation and maintenance expense is low, reliability is high, to wind energy fluctuation and the advantage such as the load variations response is fast, become an important development direction of wind-driven generator.
At present, direct wind-driven generator group brake scheme commonly used is that braking mechanism is arranged on the outside rear side of generator, it is the outside that rotating shaft extend out to the generator rear side, adopt the suction type electromagnetic brake mechanism of Returnning spring formula, or the electromagnetic brake mechanism of electromagnetic block and brake member surface engagement, realize the braking of countershaft, thereby realize the braking to whole wind-powered electricity generation unit.The working principle of this class braking mechanism be all by electromagnetism with brake member and electromagnetic block adhesive, make its surface of contact produce very large friction torque, thereby realize at short notice the braking to the wind power generating set rotating shaft.
Yet brake by long rotating shaft being stretched out the generator outside, can cause the brake path long, in the short time, countershaft produces very large friction torsional moment and impact, affects the working life of wind-driven generator.Simultaneously, the life-span of electromagnetic block also diameter affected the efficient of generator unit, and the price comparison of electromagnetic brake mechanism is expensive, has increased the cost of wind-powered electricity generation unit.
This shows, the brake system of direct wind-driven generator group in prior art also exists obvious deficiency and defective on use, structure, demand further improvement urgently.Therefore, how to found a kind of brake path shorter, be beneficial to the working life that extends rotating shaft, the I﹠M of being convenient to the main shaft fastening piece, reduce wind turbine and form this wind power generating set, one of real important topic that belongs to the research and development of current related domain.
The model utility content
The purpose of this utility model is to provide a kind of wind power generating set, makes it shorten the path of braking, and can extend the working life of rotating shaft, be convenient to the I﹠M of main shaft fastening piece, reduce the axial displacement of brake disc, adapt to the installation requirement of hydraulic brake, thereby overcome the deficiencies in the prior art.
For solving the problems of the technologies described above, a kind of wind power generating set of the utility model comprises generator casing and is arranged on generator casing interior stator, rotor and rotor rotating disk that described rotor rotating disk also is connected with brake disc; Be installed with hydraulic brake in described generator casing; The edge of brake disc is positioned at hydraulic brake, and the piston of hydraulic brake is along with fore and aft motion offsets with brake disc or separates.
As further improvement of the utility model, described unit adopts single statodyne, and its stator and hydraulic brake all are arranged in generator casing by stator support.
Described unit adopts two statodynes, and its external stator is fixedly mounted on the generator casing inwall, and inner stator and hydraulic brake all are arranged in generator casing by stator support.
Described stator support and generator casing rear end are structure as a whole.
Described brake disc and rotor rotating disk adopt the foundry goods integral structure.
Described brake disc and rotor rotating disk weld or are bolted to connection.
Described brake disc and hydraulic brake are arranged on the position near unit rotating shaft front end.
Described hydraulic brake is provided with six pistons, is symmetricly set on the both sides of brake disc, and controls six piston synchronous actions by same oil circuit through oil path distributor.
Described brake disc adopts Q345D steel matter.
The edge thickness that described brake disc is positioned at hydraulic brake is 40mm.
After adopting above design, the utility model has following beneficial effect compared with the prior art:
1, braking mechanism of the present utility model can make rotating shaft design shortlyer, thereby has shortened the brake path, has guaranteed the force-bearing situation of rotating shaft, has extended the working life of rotating shaft, is convenient to the I﹠M of main shaft fastening piece;
2, the more close main shaft of brake disc of the present utility model, reduced the axial displacement of brake disc, makes it to adapt to the installation requirement of hydraulic brake that sell in market, simultaneously, provides generator larger safer Operation and Maintenance space;
3, the utility model is arranged on hydraulic brake in generator casing, and brake disc is realized inside brake, is convenient to the operations such as installation and maintenance of hydraulic brake.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Above-mentioned is only the general introduction of technical solutions of the utility model, for can clearer understanding the utility model, below in conjunction with accompanying drawing and embodiment, the utility model be described in further detail.
Fig. 1 is the structural representation of the utility model wind power generating set.
Fig. 2 is the structural representation of brake disc of the present utility model and rotor rotating disk non-Unitary.
Embodiment
See also Fig. 1, shown in Figure 2, the utility model wind power generating set is to have increased brake disc 9 and hydraulic brake 2 on the architecture basics of the generator casing 4 that has unit now, stator, rotor 6, rotor rotating disk 3, rotating shaft 1.
Wherein, brake disc 9 can be fixedly connected on rotor rotating disk 3, also can adopt the foundry goods integral structure of rotor rotating disk 3 and brake disc 9 or will both weld, being spirally connected is fixed as one.Hydraulic brake 2 is fixedly mounted in generator casing 4.The edge of brake disc 9 is positioned at hydraulic brake 2, and the piston of hydraulic brake 2 is along with fore and aft motion offsets or separates with brake disc 9, thus the enforcement braking.
The preferred Q345D steel matter of brake disc 9, brake part (namely being positioned at the edge of hydraulic brake) thickness is 40mm, when not braking, the brake part is 1.5-5mm with the gap of hydraulic actuator piston.
Better, brake disc 9 of the present utility model and hydraulic brake 2 all are advisable to be arranged near the position of the front end of rotating shaft 1, to accomplish the shortest brake path and the fastest corresponding time.
The utility model can be applicable in single stator, two stator or multiple stators generator set flexibly.Take single statodyne as example, its stator and hydraulic brake 2 all are arranged in generator casing 4 by stator support 8; Take two statodynes as example, as shown in the figure, its external stator 5 is fixedly mounted on generator casing 4 inwalls again, and inner stator 7 and hydraulic brake 2 all are arranged in generator casing 4 by stator support 8; In addition, also can adopt the structure of stator support 8 and generator casing 4 rear end one.
The utility model makes it the structure Coupling of brake disc structure and rotor rotating disk become one, and the brake to main shaft has been completed in this brake on short path more, has shortened the brake path, has reduced the impact damage to generator.The solenoid valve of hydraulic brake is in normally open.When needs are carried out brake, PLC can provide the feathering instruction, so feathering action executing, along with the reduction of wind speed round, when the wind speed round that returns when the encoder feedback of generator afterbody reached brake and limits rotating speed, PLC sent instruction to the solenoid valve of hydraulic brake, solenoid closure, the control hydraulic actuator piston is stretched out, and rubs from both sides and clamps brake disc, thereby playing the effect of braking.
The above; it is only preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in protection domain of the present utility model.
Claims (10)
1. a wind power generating set, comprise generator casing and be arranged on generator casing interior stator, rotor and rotor rotating disk, it is characterized in that:
Described rotor rotating disk also is connected with brake disc;
Be installed with hydraulic brake in described generator casing;
The edge of brake disc is positioned at hydraulic brake, and the piston of hydraulic brake is along with fore and aft motion offsets with brake disc or separates.
2. wind power generating set according to claim 1, is characterized in that described unit adopts single statodyne, and its stator and hydraulic brake all are arranged in generator casing by stator support.
3. wind power generating set according to claim 1, is characterized in that described unit adopts two statodynes, and its external stator is fixedly mounted on the generator casing inwall, and inner stator and hydraulic brake all are arranged in generator casing by stator support.
4. according to claim 2 or 3 described wind power generating set is characterized in that described stator support and generator casing rear end are structure as a whole.
5. wind power generating set according to claim 1, is characterized in that described brake disc and rotor rotating disk adopt the foundry goods integral structure.
6. wind power generating set according to claim 1, is characterized in that the welding of described brake disc and rotor rotating disk or be bolted to connection.
7. wind power generating set according to claim 1, is characterized in that described brake disc and hydraulic brake are arranged on the position near unit rotating shaft front end.
8. wind power generating set according to claim 1, is characterized in that described hydraulic brake is provided with six pistons, is symmetricly set on the both sides of brake disc, and control six piston synchronous actions by same oil circuit through oil path distributor.
9. wind power generating set according to claim 1, is characterized in that described brake disc adopts Q345D steel matter.
10. wind power generating set according to claim 1 is characterized in that the edge thickness that described brake disc is positioned at hydraulic brake is 40mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206283369U CN202946318U (en) | 2012-11-23 | 2012-11-23 | Wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206283369U CN202946318U (en) | 2012-11-23 | 2012-11-23 | Wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946318U true CN202946318U (en) | 2013-05-22 |
Family
ID=48422025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206283369U Expired - Lifetime CN202946318U (en) | 2012-11-23 | 2012-11-23 | Wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946318U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943744A (en) * | 2012-11-23 | 2013-02-27 | 国电联合动力技术有限公司 | Wind power generating unit |
| CN109099076A (en) * | 2018-09-30 | 2018-12-28 | 中国科学院长春光学精密机械与物理研究所 | A kind of mobile shaft brake |
-
2012
- 2012-11-23 CN CN2012206283369U patent/CN202946318U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102943744A (en) * | 2012-11-23 | 2013-02-27 | 国电联合动力技术有限公司 | Wind power generating unit |
| CN109099076A (en) * | 2018-09-30 | 2018-12-28 | 中国科学院长春光学精密机械与物理研究所 | A kind of mobile shaft brake |
| CN109099076B (en) * | 2018-09-30 | 2021-01-05 | 中国科学院长春光学精密机械与物理研究所 | Brake for movable shaft |
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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: 20130522 |