CN205135916U - Wind generating set and wind generating set's main drive system - Google Patents
Wind generating set and wind generating set's main drive system Download PDFInfo
- Publication number
- CN205135916U CN205135916U CN201520835247.5U CN201520835247U CN205135916U CN 205135916 U CN205135916 U CN 205135916U CN 201520835247 U CN201520835247 U CN 201520835247U CN 205135916 U CN205135916 U CN 205135916U
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- China
- Prior art keywords
- generating set
- main shaft
- generator
- speed increaser
- wind power
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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 and wind generating set's main drive system, wind generating set's main drive system include main shaft, speed increaser and generator, the input shaft of speed increaser the main shaft, the output shaft of speed increaser the generator still includes the rear bearing assembly that is used for overcoming the fore bearing assembly of radial force and is used for overcoming the axial force, the rear bearing is always established in a complete set the main shaft is close to the one end of speed increaser, the fore bearing is always established in a complete set the other end of main shaft, the generator is high -speed permanent magnet generator. The utility model discloses the high -speed permanent magnet generator of well adoption, output electric energy adequate quality, good to electric wire netting adaptability ability, low voltage ride through ability reinforce adopts two point types of duplex bearing to support simultaneously, and the wind wheel system passes overturning moment, radial force and the axial force of coming and is absorbed respectively by two bearings, has protected the gear box of main shaft and speed increaser for the speed increaser life -span is improved greatly.
Description
Technical field
The utility model relates to wind power generating set, especially relevant with the main transmission structure in wind power generating set.
Background technique
Global energy is in short supply, the situation is tense in climatic change, and Renewable Energy Development is of crucial importance.Wind energy transformation, as green energy resource generating means, can be electric energy by wind power plant.Due to the uncertainty of nature apoplexy, the electric energy that causes wind power plant to send interval fluctuates instability, and the quality of the quality of power supply, directly affects again the stability of electrical network and electrical network to the receiving degree of wind-powered electricity generation.Therefore in the urgent need to the Wind turbines of electrical network friendly.
In addition, main shaft in domestic wind power generating set main transmission is owing to being subject to wind direction variable effect, not only bear radial force but also bear axial force, and existing structure can not overcome the problem that this loading characteristic produces completely, make main axis stationarity very poor, affect power generating quality, even affect the working life of equipment.And some main transmissions are in order to overcome above-mentioned defect, have employed very complicated structure, although spindle operation stationarity can be improved, improving integral manufacturing cost, the wasting competitive ability simultaneously reducing product.
Model utility content
For problems of the prior art, the purpose of this utility model can either provide colory electric energy for providing one, can improve again the wind power generating set of spindle operation stationarity and the main transmission of wind power generating set.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of main transmission of wind power generating set, comprise main shaft, speed increaser and generator, the input shaft of described speed increaser connects described main shaft, the output shaft of described speed increaser connects described generator, also comprise overcoming the fore bearing assembly of radial force and the rear bearing assembly in order to overcome axial force, described rear bearing assembly is set in described main shaft one end near described speed increaser, and described fore bearing assembly is set in the other end of described main shaft, and described generator is high-speed permanent magnetic generator.
Preferably, the rotor of described generator is permanent magnet, and stator is generating winding.
Preferably, described main shaft inserts the described input shaft of described speed increaser, with described input shaft synchronous axial system.
Preferably, the output shaft of described speed increaser is connected by coupling with between the input shaft of described generator.
Preferably, described coupling is elastic coupling flexible coupling.
Preferably, the fore bearing inner ring of described fore bearing assembly and described main shaft interference fit, and rotate with described main shaft.
Preferably, the rear bearing inner ring of described rear bearing assembly and described main shaft interference fit, and rotate with described main shaft.
Preferably, the output terminal of described generator is connected with power generation cables.
Preferably, the other end of described power generation cables is connected with full power frequency variator.
For achieving the above object, the utility model also provides following technological scheme:
A kind of wind power generating set, includes main transmission as above.
The beneficial effects of the utility model are; the utility model compared with prior art; high-speed permanent magnetic generator is adopted in the utility model; output electric power quality is excellent, can be good to grid adaptability, and low voltage ride-through capability is strong; adopt duplex bearing two point form to support simultaneously; wind wheel system passes tilting moment, radial force and the axial force of coming and is absorbed respectively by two bearings, protects the gear-box of main shaft and speed increaser, the speed increaser life-span is improved greatly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the main transmission of wind power generating set of the present utility model.
Embodiment
The exemplary embodiments embodying the utility model feature & benefits will describe in detail in the following description.Be understood that the utility model can have various changes in different embodiments, it neither departs from scope of the present utility model, and explanation wherein and accompanying drawing are the use when explain in itself, and is not used to limit the utility model.
Wind power generating set of the present utility model is the different of its main transmission from the different of existing wind power generating set.
As shown in Figure 1, the main transmission of wind power generating set of the present utility model comprises main shaft 1, fore bearing assembly 2, rear bearing assembly 3, speed increaser 4, coupling 5, generator 6, power generation cables 62 and full power frequency variator 7.Wherein, the front end of main shaft 1 connects wind wheel system 8, and rear end is connected with speed increaser 4.Fore bearing assembly 2 is set in main shaft 1 one end near wind wheel system 8, in order to overcome the radial force being passed to main shaft 1 by wind wheel system 8.Rear bearing assembly 3 is set in main shaft 1 one end near speed increaser 4, in order to overcome the axial force being passed to main shaft 1 by wind wheel system 8.Fore bearing inner ring 21 and main shaft 1 interference fit of fore bearing assembly 2; and rotate with main shaft 1; rear bearing inner ring 31 and main shaft 1 interference fit of rear bearing assembly 3; and rotate with main shaft 1; the smooth operation of main shaft 1 can be realized by this kind of structure; overcome the axial force and the radial force that are passed to main shaft 1 by wind wheel system 8, thus the gear-box of protection speed increaser 4.
In the present embodiment, the input shaft 41 of speed increaser 4 connects main shaft 1, and the output shaft 42 of speed increaser 4 connects generator 6.Wherein, main shaft 1 inserts the input shaft 41 of speed increaser 4, thus makes input shaft 41 synchronous axial system of main shaft 1 and speed increaser 4; Be connected by coupling 5 between the output shaft 42 of speed increaser 4 and the input shaft 61 of generator 6, and this coupling 5 is elastic coupling flexible coupling.In the present embodiment, generator 6 is high-speed permanent magnetic generator, and the rotor of generator 6 is permanent magnet, and stator is generating winding.The output terminal of generator 6 is connected with power generation cables 62, and this power generation cables 62 one end connects generator 6, and the other end is connected with full power frequency variator 7.
During the present embodiment work, wind energy transformation is that the mechanical energy rotated passes to main shaft 1 by wind wheel system 8, main shaft 1 drives fore bearing inner ring 21, rear bearing inner ring 31, the input shaft 41 of speed increaser 4 rotates, after rotating speed being amplified by speed increaser 4, by the output shaft 42 of speed increaser 4, coupling 5, the input shaft 61 of generator 6, the mechanical energy of rotation is continued to pass to generator 6, and be electric energy by generator 6 by the changes mechanical energy of rotation, and pass to full power frequency variator 7 by power generation cables 62, be finally input electrical network for use with electrical network with the electric energy of homophase frequently by Conversion of Energy by full power frequency variator 7.
The beneficial effect that in the present embodiment, structure has is: main transmission adopts high-speed permanent magnetic generator 6, the generating frequency of permanent magnet generator 6 and electrical network is made to keep synchronous by full power convertor 7, and control the induction torque of generator 6, thus change generated output, permanent magnet generator 6 output electric power quality is excellent, can be good to grid adaptability, low voltage ride-through capability is strong.Adopt the duplex bearing two point form of fore bearing assembly 2 and rear bearing assembly 3 to support simultaneously; wind wheel system 8 passes the tilting moment and radial force of coming and axial force is absorbed by fore bearing assembly 2 and rear bearing assembly 3; and fore bearing assembly 2 and rear bearing assembly 3 play a supportive role and digest responsive to axial force; therefore torque is only had to enter the gear-box of speed increaser 4; greatly protect the gear-box of speed increaser 4, the gear-box life-span of speed increaser 4 improves greatly.In addition, high-speed permanent magnetic generator 6 boundary dimension is little, lightweight, and transport handling is convenient.
The technical solution of the utility model is disclosed as above by preferred embodiment.The change that those skilled in the art do when should recognize the scope and spirit of the present utility model disclosed in the claim do not departed from appended by the utility model and retouching, within the protection domain all belonging to claim of the present utility model.
Claims (10)
1. the main transmission of a wind power generating set, comprise main shaft, speed increaser and generator, the input shaft of described speed increaser connects described main shaft, the output shaft of described speed increaser connects described generator, it is characterized in that, also comprise overcoming the fore bearing assembly of radial force and the rear bearing assembly in order to overcome axial force, described rear bearing assembly is set in described main shaft one end near described speed increaser, described fore bearing assembly is set in the other end of described main shaft, and described generator is high-speed permanent magnetic generator.
2. the main transmission of wind power generating set as claimed in claim 1, it is characterized in that, the rotor of described generator is permanent magnet, and stator is generating winding.
3. the main transmission of wind power generating set as claimed in claim 2, it is characterized in that, described main shaft inserts the described input shaft of described speed increaser, with described input shaft synchronous axial system.
4. the main transmission of wind power generating set as claimed in claim 2, it is characterized in that, the output shaft of described speed increaser is connected by coupling with between the input shaft of described generator.
5. the main transmission of wind power generating set as claimed in claim 4, it is characterized in that, described coupling is elastic coupling flexible coupling.
6. the main transmission of wind power generating set as claimed in claim 1, is characterized in that, the fore bearing inner ring of described fore bearing assembly and described main shaft interference fit, and rotates with described main shaft.
7. the main transmission of wind power generating set as claimed in claim 6, is characterized in that, the rear bearing inner ring of described rear bearing assembly and described main shaft interference fit, and rotates with described main shaft.
8. the main transmission of wind power generating set as claimed in claim 2, it is characterized in that, the output terminal of described generator is connected with power generation cables.
9. the main transmission of wind power generating set as claimed in claim 8, it is characterized in that, the other end of described power generation cables is connected with full power frequency variator.
10. a wind power generating set, is characterized in that, include as arbitrary in claim 1-9 as described in main transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835247.5U CN205135916U (en) | 2015-10-26 | 2015-10-26 | Wind generating set and wind generating set's main drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520835247.5U CN205135916U (en) | 2015-10-26 | 2015-10-26 | Wind generating set and wind generating set's main drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205135916U true CN205135916U (en) | 2016-04-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520835247.5U Active CN205135916U (en) | 2015-10-26 | 2015-10-26 | Wind generating set and wind generating set's main drive system |
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| Country | Link |
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| CN (1) | CN205135916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843520A (en) * | 2018-06-04 | 2018-11-20 | 太原重型机械集团工程技术研发有限公司 | Wind turbines main transmission |
| CN113958620A (en) * | 2021-10-14 | 2022-01-21 | 三一重能股份有限公司 | Wind turbine generator and transmission system thereof |
-
2015
- 2015-10-26 CN CN201520835247.5U patent/CN205135916U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843520A (en) * | 2018-06-04 | 2018-11-20 | 太原重型机械集团工程技术研发有限公司 | Wind turbines main transmission |
| CN113958620A (en) * | 2021-10-14 | 2022-01-21 | 三一重能股份有限公司 | Wind turbine generator and transmission system thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |