CN202690325U - Wind power generation system - Google Patents
Wind power generation system Download PDFInfo
- Publication number
- CN202690325U CN202690325U CN2012203081577U CN201220308157U CN202690325U CN 202690325 U CN202690325 U CN 202690325U CN 2012203081577 U CN2012203081577 U CN 2012203081577U CN 201220308157 U CN201220308157 U CN 201220308157U CN 202690325 U CN202690325 U CN 202690325U
- Authority
- CN
- China
- Prior art keywords
- wind
- drive shaft
- generator
- power generating
- generating system
- Prior art date
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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 power generation system which comprises a wind wheel, a generator, a machine cabin bottom frame, a tower drum and a transmission system. The transmission system comprises a horizontal transmission shaft and a vertical transmission shaft, the horizontal transmission shaft is installed on the machine cabin bottom frame, one end of the horizontal transmission shaft is connected with the wind wheel, the vertical transmission shaft is installed in the tower drum, the horizontal transmission shaft is in transmission with the upper end of the vertical transmission shaft through meshed bevel gears or a worm and a gear, the lower end of the vertical transmission shaft drives an input shaft of the generator, and the generator is located in the tower drum. The wind power generation system achieves power conversion from the horizontal direction to the vertical direction through the bevel gears or the worm and the gear, the transmission system enables mechanical energy of the wind wheel to be transferred to the engine vertically, and therefore the generator and other components can be arranged in the tower drum. Top weight and top machine cabin size of the wind power generation system are reduced, load of the tower drum is lowered further, and strength required by the tower drum is reduced.
Description
Technical field
The utility model relates to a kind of wind generating technology, particularly a kind of wind-power generating system.
Background technique
Wind-power generating system generally comprises wind wheel, transmission system, generator and tower cylinder.Wind wheel absorbs wind energy, changes the kinetic energy of wind into mechanical energy, drives generator operation by transmission system, makes generator output electric energy.Because the rotating ratio of wind wheel is lower, also is provided with speeder between transmission system and generator, to improve the input speed of generator.The tower cylinder is the framework of wind-wheel supporting, transmission system, generator, and it generally builds highlyer, so that wind wheel has higher height, to obtain larger and more uniform wind energy.
Current, wind-power generating system has two kinds of structures, and a kind of is the horizontal axial type wind-power generating system, and another kind is vertical shaft type wind power generation system.
In the horizontal axial type wind-power generating system, the spin axis of wind wheel is parallel with wind direction.All the time aim at wind direction in order to keep wind wheel, to absorb as much as possible wind energy, the wind-power generating system of this structure also arranges yaw system usually, yaw system can be identified automatically to wind vector, and according to wind vector adjustment wind wheel direction, realize automatically to wind, and then wind wheel can absorb more wind energy; Therefore, the horizontal axial type wind-power generating system has higher wind energy conversion efficiency.But in this wind-power generating system, the parts such as its transmission system, speeder, generator and yaw system all need to place the cabin at tower cylinder top; This makes the load of tower cylinder very large just so that the top-heavness of wind-power generating system is very large.Reach the MW level at wind-power generating system, particularly high-power offshore wind power system develops into 3MW when above, can make the top-heavness of wind-power generating system larger, such as the top-heavness of auspicious 5MW horizontal axial type wind-power generating system that can company up to 410 tons.In order to satisfy the load bearing stength needs, the tower cylinder need to be done very heavyly, so that the cost of tower cylinder and wind-power generating system increases considerably.In addition, the transmission system of horizontal axial type wind-power generating system, speeder and generator will place tens meters high-altitude, and this is also so that the lifting of the wind-power generating system of this structure and maintenance are very inconvenient; When wind-power generating system power rank was higher, the size in cabin, tower cylinder top also can be very large, and this will further cause the transportation of complete machine and the inconvenience of lifting, so that the installation and maintenance cost of the wind-power generating system of this structure is very high.Simultaneously, the top-heavness of wind-power generating system is excessive also can be so that yaw system load be excessive, and driftage difficult, wind wheel are difficult to obtain accurate direction.
In the vertical shaft type wind power generation system, the spin axis of wind wheel is perpendicular to ground or airflow direction.Because vertical shaft type wind power generation system need not wind in change of the wind, so its structure is relatively simplified.In addition, the gear-box of the wind-power generating system of this structure and generator needn't be installed in tower cylinder top, can install on the ground or lower position, and this is so that the installation and maintenance of this wind-power generating system is easier.But, because that subaerial part of wind wheel is subject to wind-force is less, thereby can't give full play to the effect of wind wheel, so that the wind energy conversion efficiency of vertical shaft type wind power generation system is lower.
How when keeping the higher wind energy conversion efficiency of wind-power generating system, the top-heavness that reduces wind-power generating system is the technical barrier that current those skilled in the art need to solve.
In addition, in the prior art, increasing along with wind-power generating system power, single wind-power generating system generally adopts the mode of the corresponding generator of a wind wheel.In order to increase the single-machine capacity of wind-power generating system, just need to increase the power of generator, increase the size of generator, and then can propose higher requirement to manufacturing, transportation and the installation of generator, so that the reliability of generator is difficult to satisfy actual demand.
The model utility content
Therefore, the purpose of this utility model is, a kind of wind-power generating system is provided, and this wind-power generating system can in the higher wind energy conversion efficiency of maintenance, reduce the top-heavness of wind-power generating system.
To achieve these goals, the wind-power generating system that the utility model provides comprises wind wheel, generator, cabin underframe and tower cylinder, also comprises transmission system, and described transmission system comprises horizontal drive shaft and vertical drive shaft; Described horizontal drive shaft is installed on the underframe of cabin, and an end links to each other with wind wheel; Described vertical drive shaft is installed in the tower cylinder; Pass through intermeshing bevel gear or Worm Wheel System between described horizontal drive shaft and the vertical drive shaft upper end; Described vertical drive shaft lower end drives the input shaft of described generator; Described generator is positioned at the tower cylinder.
Optionally, described generator is positioned at described tower cylinder lower end.
Optionally, has speeder between described vertical drive shaft lower end and the generator input shaft.
Optionally, described speeder comprises the driving gear that is installed in described vertical drive shaft lower end and the driven gear that is installed on the described generator input shaft, described driving gear and driven gear engagement.
Optionally, described driving gear is external gear or internal gear.
Optionally, described wind-power generating system comprises many described generators, on each described generator input shaft a described driven gear is installed respectively.
Optionally, described cabin underframe and tower cylinder rotatable linking to each other of upper end.
Optionally, described horizontal drive shaft two end part are installed in respectively on the underframe of described cabin.
Optionally, by intermeshing Worm Wheel System, described horizontal drive shaft is provided with worm gear between described horizontal drive shaft and the vertical drive shaft upper end, and described vertical drive shaft upper end is provided with worm screw.
Optionally, between described horizontal drive shaft and the vertical drive shaft upper end by intermeshing spirality bevel gear drive.
In the wind-power generating system that the utility model provides, its transmission system comprises horizontal drive shaft and vertical drive shaft, and passes through the transmission of bevel gear or worm and gear between horizontal drive shaft and the vertical drive shaft, and the realization level is changed to the biography of Vertical direction; So just can make the wind wheel spin axis parallel with wind direction, make wind wheel absorb more wind energy, make wind-power generating system have higher wind energy conversion efficiency; Simultaneously, because transmission system vertically passes to generator with the mechanical energy of wind wheel, so just the parts such as generator can be arranged in the tower cylinder, thereby the top-heavness that can reduce wind-power generating system reaches the size with the cabin, top; And then can reduce the load of tower cylinder, and reduce the required intensity of tower cylinder, reduce the weight of tower cylinder itself, reduce the cost of wind-power generating system.Simultaneously, the generator of wind-power generating system needn't be installed in the cabin at tower cylinder top, can be installed in the lower position in the tower cylinder, so just can make the installation and maintenance of wind-power generating system easier.
In further technological scheme, described generator is positioned at tower cylinder lower end; Can further reduce like this mounting point of generator, make the installation and maintenance of wind-power generating system convenient.
In further technological scheme, be provided with speeder between described vertical drive shaft lower end and the generator input shaft; Speeder can increase the output speed of transmission system further, improves the input speed of generator.
In further technological scheme, wind-power generating system comprises many generators, and vertical drive shaft drives many generator operations simultaneously by speeder.Can with the complete machine power division of the high-power generator in the wind-power generating system to many generators, not only can guarantee the generated energy of wind-power generating system, and make the unit weight of each generator lighter like this, be convenient to transportation and install.Also reduced simultaneously the manufacture cost of generator.The more important thing is: substitute a high-power generator with many small power generators, can make the transportation of wind-power generating system and easier for installation; In addition, when one or a part of small power generator broke down, other generator still can run well, and so just can reduce the dead time of wind-power generating system, improves on the whole generated energy and the operating reliability of wind-power generating system.
In further technological scheme, described cabin underframe and tower cylinder rotatable linking to each other of upper end; Described horizontal drive shaft is installed on the underframe of cabin.In this technological scheme, can by suitable yaw system driving machine bilge frame with respect to the rotation of tower cylinder, realize the adjustment to the wind wheel direction.
In further technological scheme, between described horizontal drive shaft and the vertical drive shaft by intermeshing spirality bevel gear drive.Can improve the reliability of transmission system transmission of power like this, and the noise that reduces to produce in the transmission process.
Description of drawings
The structural representation of a kind of wind-power generating system that Fig. 1 provides for the utility model embodiment;
Fig. 2 is among the utility model embodiment, and vertical drive shaft drives the principle schematic of generator operation.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.
Please refer to Fig. 1, this figure is the structural representation of a kind of wind-power generating system of providing of the utility model embodiment.This wind-power generating system comprises wind wheel 10, transmission system 20, cabin underframe 30, tower cylinder 40, speeder 50 and generator 60.Transmission system 20 comprises horizontal drive shaft 21 and vertical drive shaft 24.Horizontal drive shaft 21 is rotatably installed on the cabin underframe 30 on tower cylinder 30 tops by bearing; Horizontal drive shaft 21 horizontal-extendings, first end links to each other with wind wheel 10, and the second end is installed the first gear 22.Vertical drive shaft 24 is rotatably installed in the tower cylinder 40, and its spin axis is vertical with the spin axis of horizontal drive shaft 21; Vertical drive shaft 24 upper ends are equipped with the second gear 23.The first gear 22 of horizontal drive shaft 21 second ends and the second gear 23 of vertical drive shaft 24 upper ends are respectively the spirality bevel gear, and intermeshing.Generator 60 is positioned at tower cylinder 40, and the lower end of vertical drive shaft 24 links to each other with generator 60 input shafts by speeder 50, runs up to drive generator 60.
Please refer to Fig. 2, this figure is the principle schematic that vertical drive shaft drives generator operation among the utility model embodiment.In this example, wind-power generating system comprises four generators 60.Generator 60 can be asynchronous double-fed generator, also can be the generator of magneto alternator or other types.Speeder 50 comprises driving gear 51 and driven gear 52; Driving gear 51 is formed at the internal surface of the gear disk of vertical drive shaft 24 lower ends, and this driving gear 51 is internal gear; Turn round simultaneously in order to make vertical drive shaft 24 can drive simultaneously four generators 60, speeder 50 comprises four driven gears 52, each driven gear 52 is installed in respectively on every generator 60 input shafts, and four driven gears 52 are meshed with driving gear 51 simultaneously.
In the wind-power generating system that present embodiment provides, its transmission system 20 comprises horizontal drive shaft 21 and vertical drive shaft 24, and passes through bevel gear drive between horizontal drive shaft 21 and the vertical drive shaft 24, and the level that realized is changed to the biography of Vertical direction; So just can make wind wheel 10 spin axiss parallel with wind direction, make wind wheel 10 absorb more wind energy, make wind-power generating system have higher wind energy conversion efficiency; Simultaneously, because transmission system vertically passes to generator 60 with the mechanical energy of wind wheel 10, generator 20 parts such as grade can be placed in the tower cylinder 40, thereby can reduce the top-heavness of wind-power generating system and the size in cabin, top, and then can reduce by 40 loads of tower cylinder, reduce the required intensity of tower cylinder 40, reduce the weight of tower cylinder 40 itself, reduce the cost of wind-power generating system.Simultaneously, the generator 60 of wind-power generating system needn't be installed in tower cylinder top, can be installed in lower position; Because generator can be installed in the tower cylinder 40, this also can facilitate for the staff carries out inspection and maintenance to relevant device, makes the installation and maintenance of wind-power generating system easier.
Please refer to Fig. 1, in the present embodiment, horizontal drive shaft 21 is connected with cabin underframe 30 by bearing and is supported on the cabin underframe 30, can axial, radial load transfer be arrived cabin underframe 30 by bearing like this; At this moment, the first gear 22 does not bear the additional external force except moment of torsion, and the stand under load situation is better.In order further to improve the transmission stability of transmission system 20, the second end of horizontal drive shaft 21 is prolonged, and at tower cylinder 40 cabin underframe 30 another bearing is set, and make the second end of this bearings horizontal drive shaft 21; Like this, horizontal drive shaft 21 is supported on the cabin underframe 30 by two strong points, makes the first gear 22 between two strong points, can improve like this stability of whole transmission system 20.
Along with the progress of wind generating technology, the generated output of wind-power generating system also constantly increases, and requires the power of the generator that mates in the wind-power generating system also constantly to increase, and therefore, wind-power generating system mainly uses powerful generator to generate electricity; The high-power generator increased power causes its weight significantly to increase, and causes the high-power generator transportation and installs very difficult; Add the mounting point of wind-power generating system generally in more remote area, and the setting position of high-power generator is higher, these factors cause the installation of wind-power generating system more difficult.Current, installation question for high-power generator and other parts has proposed the multiple technologies scheme, these technological schemes all are from improving transport capacity, improve crane capacity, improving the solution of machinery adaptable angle at transportation and the installation question of high-power generator.In this example, wind-power generating system comprises many generators 60, and the driving gear 51 of vertical drive shaft 24 lower ends drives 60 runnings of many generators simultaneously by a plurality of driven gears 52.Like this with the complete machine power division of wind-power generating system to many generators, make the unit weight of each generator 60 lighter; Reduce the generator manufacture cost, the employing high-power generator volume of the large scale wind power machine of having forgone weighs the shortcoming that should not make, transport and install greatly.The more important thing is: substitute high-power generators with many low power generators 60, can make the transportation of wind-power generating system and easier for installation; In addition, when one or a part of low power generator broke down, other generator still can run well, and so just can reduce the dead time of wind-power generating system, improves on the whole generated energy and the operating reliability of wind-power generating system.And the utility model provides with the overall power distribution of the wind-power generating system technological means to many low power generators, different from the technological means of prior art, from providing of a new angle a kind of technological means that solves wind-power generating system transportation and install; Certainly, according to actual conditions, 1,2,3 or more s' generator 60 also can be set, to satisfy actual demand.
In the present embodiment, the first gear 22 and the second gear 23 are respectively the spirality bevel gear, can improve like this reliability of transmission, reduce the transmission noise; Can certainly carry out transmission by common bevel gear.The realization level is not limited to realize by bevel gear to vertical-transmission, also can realize by Worm Wheel System, namely at horizontal drive shaft 21 worm screw is set, in vertical drive shaft 24 upper ends worm gear is set, and worm gear is meshed with worm screw, equally also can the realization level arrive vertical transmission; In order to realize speedup, also can worm screw be installed in vertical drive shaft 24 upper ends by changing the lead angle of worm screw, worm gear is installed on the horizontal drive shaft 21.
In this example, in the speeder 50, driving gear 51 is internal gear, and the number of teeth of driven gear 52 is less than the number of teeth of driving gear 51, can increase like this input speed of generator 60, guarantees the generating efficiency of generator 60; Simultaneously can make the drive mechanism between vertical drive shaft 24 and the generator 60 compacter; Certainly, also driving gear 51 external gear can be set to, the purpose of speedup transmission can be realized equally.Speeder 50 is not limited to said structure, can also be set to according to actual needs other structures, such as: one or more levels gear that other can be set.
According to foregoing description, a generator that power is larger also can be set, and vertical drive shaft 24 is directly linked to each other with the input shaft of this generator 60; In order to improve the input speed of generator, can also between vertical drive shaft 24 lower ends and this generator input shaft, suitable speeder be set.
For the ease of adjusting the wind wheel direction, in this example, cabin underframe 30 and tower cylinder 40 upper ends are by suitable bearing or swirl gear is rotatable links to each other, and the spin axis between tower cylinder 40 and the cabin underframe 30 overlaps with the spin axis of vertical drive shaft 24; Like this, can rotate with respect to tower cylinder 40 by driving machine bilge frame 30 by yaw system, so that the direction of wind wheel 10 is adjusted.
In order further to provide convenience for the installation and maintenance of wind-power generating system, can prolong according to actual needs the length of vertical drive shaft 24, reduce the mounting point of generator 60, generator 60 can be provided with tower cylinder 40 neutral positions, also generator 60 can be provided with the lower end of tower cylinder 40.
It below only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (9)
1. a wind-power generating system comprises wind wheel, generator, cabin underframe and tower cylinder, it is characterized in that, also comprise transmission system, described transmission system comprises horizontal drive shaft and vertical drive shaft; Described horizontal drive shaft is installed on the underframe of cabin, and an end links to each other with wind wheel; Described vertical drive shaft is installed in the tower cylinder; Pass through intermeshing bevel gear or Worm Wheel System between described horizontal drive shaft and the vertical drive shaft upper end; Described vertical drive shaft lower end drives the input shaft of described generator; Described generator is positioned at the tower cylinder.
2. described wind-power generating system according to claim 1 is characterized in that described generator is positioned at described tower cylinder lower end.
3. wind-power generating system according to claim 2 is characterized in that, has speeder between described vertical drive shaft lower end and the generator input shaft.
4. wind-power generating system according to claim 3, it is characterized in that, described speeder comprises the driving gear that is installed in described vertical drive shaft lower end and the driven gear that is installed on the described generator input shaft, described driving gear and driven gear engagement.
5. wind-power generating system according to claim 4 is characterized in that, described driving gear is external gear or internal gear.
6. wind-power generating system according to claim 5 is characterized in that, comprises many described generators, on each described generator input shaft a described driven gear is installed respectively.
7. each described wind-power generating system is characterized in that according to claim 1-6, described cabin underframe and tower cylinder rotatable linking to each other of upper end.
8. each described wind-power generating system is characterized in that according to claim 1-6, and described horizontal drive shaft two end part are installed in respectively on the underframe of described cabin.
9. each described wind-power generating system according to claim 1-6, it is characterized in that, by intermeshing Worm Wheel System, described horizontal drive shaft is provided with worm gear between described horizontal drive shaft and the vertical drive shaft upper end, and described vertical drive shaft upper end is provided with worm screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203081577U CN202690325U (en) | 2012-06-29 | 2012-06-29 | Wind power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203081577U CN202690325U (en) | 2012-06-29 | 2012-06-29 | Wind power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690325U true CN202690325U (en) | 2013-01-23 |
Family
ID=47545951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203081577U Expired - Fee Related CN202690325U (en) | 2012-06-29 | 2012-06-29 | Wind power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121925A (en) * | 2016-08-16 | 2016-11-16 | 海南省蓝波新能源科技有限公司 | A kind of wind resisting type wind-driven generator |
-
2012
- 2012-06-29 CN CN2012203081577U patent/CN202690325U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106121925A (en) * | 2016-08-16 | 2016-11-16 | 海南省蓝波新能源科技有限公司 | A kind of wind resisting type wind-driven generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102003348A (en) | Wind generating set | |
| CN201474863U (en) | Variable-pitch variable-speed wind turbine | |
| CN102418673B (en) | Wind driven generator system arranged on land for generator group | |
| CN102116264A (en) | Megawatt-stage vertical shaft wind power generator with adjustable attack angle | |
| US8952558B2 (en) | Wind generating device | |
| CN207835390U (en) | A kind of photovoltaic bracket that can utilize wind energy and solar energy simultaneously | |
| CN1664359A (en) | Wind power generation equipment | |
| CN2883720Y (en) | Wind-driven generating unit | |
| CN203756446U (en) | Wind driven generator transmission structure | |
| CN203925876U (en) | Two-shipper group wind power plant | |
| CN203350032U (en) | Fault simulation experiment device of windmill driving chain | |
| CN202690325U (en) | Wind power generation system | |
| CN102418674B (en) | Energy storage wind driven power generation device | |
| CN101545452A (en) | Vertical wind-powered generator | |
| CN202746116U (en) | Impeller | |
| CN201723389U (en) | Split wind driven generator | |
| CN109578211A (en) | Generator landing type T axis mixed drive variable-pitch variable-speed wind generating machine and control methods | |
| CN202971048U (en) | Direct-drive wind power generator | |
| CN103195667B (en) | A kind of distributed hydraulic control frequency stabilized vertical-shaft wind machine power generating system | |
| CN107701377A (en) | A kind of semi-directly driven wind-powered set drive system of compact | |
| CN113417816A (en) | Land-saving load-reducing wind power generation system | |
| CN201884216U (en) | Wind power generation multi-gear boost generating set | |
| CN201705571U (en) | Wind driven generator | |
| CN204312251U (en) | A kind of wind power generation system | |
| CN100532833C (en) | Main shaft assembly for wind energy power device with vertical shaft |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20130629 |