CN203248322U - Semi-directly-driving wind power drive system - Google Patents
Semi-directly-driving wind power drive system Download PDFInfo
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- CN203248322U CN203248322U CN2013202103249U CN201320210324U CN203248322U CN 203248322 U CN203248322 U CN 203248322U CN 2013202103249 U CN2013202103249 U CN 2013202103249U CN 201320210324 U CN201320210324 U CN 201320210324U CN 203248322 U CN203248322 U CN 203248322U
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- 238000009827 uniform distribution Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 7
- 230000005484 gravity Effects 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 abstract 1
- 230000007547 defect Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000002350 accommodative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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Abstract
The utility model provides a semi-directly-driving wind power drive system for a wind driven generator. A gearbox assembly module and a generator assembly module are integrally installed. The output end of the gearbox assembly module is connected with the input end of the generator assembly module. The output end of the gearbox assembly module and the input end of the generator assembly module are arranged on the same axis. The center is located on a tower after the gearbox assembly module and the generator assembly module are connected. The center of gravity of the structure with a gearbox installed on a cabin chassis is centered, load of a machine head is reduced, the defect of abrasion of the connection portion of a cabin and a hub is avoided, vibration of a cabin base is lowered, installation of the gearbox and a generator can be finished on the ground, and therefore lifting is facilitated. By adopting an NGW planetary gear train, the gearbox has the advantages of being compact in structure, small in size, small in mass, large in bearing capacity, low in operation noise, high in efficiency, long in service life and the like, high-speed grades are reduced, the structure is compact, the occupied space of the gearbox is reduced and the failure rate of the gearbox is lowered.
Description
Technical field
The utility model relates to transmission system, particularly the wind-driven generator transmission system.
Background technique
Domestic wind-driven generator mainly comprises two kinds of permanent magnet direct-drive blower fan and double-fed blower fans.Both main distinctions are the use of non-gear box.
Aspect generating capacity, the permanent magnet direct-drive blower fan does not have gear-box, has reduced transmission part, so mechanical efficiency promotes, output power is larger under the specified slow-speed of revolution, but because the permanent magnet direct-drive unit adopts full power convertor, its capacity is about 3 times of double-fed unit, so electrical loss increases greatly, the simultaneously also corresponding increase of cooling system energy consumption of current transformer, in order to reduce permanent magnet demagnetization phenomenon, generator cooling system is more complicated, and energy consumption also can increase.
The whole aircraft reliability aspect, during the year rate of fault of wind-powered electricity generation unit was added up, the parts that the rate that breaks down is higher were electrical network successively, automatical control system, blade, generator, hydraulic system, gear-box, yaw system becomes oar and drives aerobraking, mechanical braking and main shaft.Direct drive generator is because revolution is low, and number of magnetic poles is a lot, usually 90 extremely more than, and volume and weight to compare the double-feedback aerogenerator group also much larger, require high to rotatable parts such as bearings, permanent magnet direct-driven running of wind generating set temperature range is narrow, and accommodative ability of environment is general, and the generator of directly driving type unit is very huge, and generally be positioned at the joint in wheel hub and cabin, the front end that it is centered close to tower cylinder center line has increased head load, easily makes the joint wearing and tearing of cabin, wheel hub.
Transportation and lifting aspect: generator weight and the size of permanent magnet direct-drive unit are larger, lifting and transportation difficulty, and the correction of generator is also very difficult in the installation process.
Maintainable aspect: therefore double-feedback aerogenerator has increased the maintenance of mechanical system because gear-box is arranged, because for a long time operation, gearbox high-speed transmission part mechanical failure problem becomes increasingly conspicuous.In the whole world wind-powered electricity generation unit, be the type with gear-box more than 85% now.Existing MW class wind turbine mainly all is with gear-box, and speed increaser adopts three grades of transmissions, gear for two stage planetary gear train adds one-level parallel axes system, complex structure, the requirement machining accuracy is high, velocity ratio is high, and rate of fault is high, and volume is large, take up room large, vibration is large, and cost is higher, and generator adopts asynchronous motor, gear-box and generator are installed on the nacelle chassis simultaneously, gearbox input shaft and output shaft cause the installation centering of generator and gear-box very poor not on a center line, and it is large to take up room.
Summary of the invention
For addressing the above problem, the utility model provides a kind of semi-direct driving wind electric drive system, makes the weight transmitting of generator to gear-box, concentrate the front end that acts on nacelle chassis, steadily head load reduces the wearing and tearing of cabin, wheel hub, and the native system centering is high, not only effectively saved the installing space of wind power generating set, and reduced jarring effect, and compact structure, easy for removal and installation, applicability is strong, superior performance.
Meanwhile, gearbox has reduced at a high speed level, make structure compacter, having reduced gear-box takes up room, reduced the rate of fault of gear-box, when assembling with generator, increased centering, the advantage such as have compact structure, volume is little, quality is little, bearing capacity is large, running noises is little, efficient is high and the life-span is long.
In order to achieve the above object, the utility model provides a kind of semi-direct driving wind electric drive system, it comprises the load module of wheel hub rotor, gear-box load module, generator load module, engine room foundation, wheel hub and blade, engine room foundation is installed on the frame tower, engine room foundation is installed the load module of wheel hub rotor from front to back successively, gear-box load module, generator load module, wheel hub rotor load module front end is installed wheel hub, blade is installed on the wheel hub, described gear-box load module and generator load module one are installed, gear-box load module output terminal connects generator load module input end, and gear-box load module output terminal and generator load module input end are on same axis.
Described gear-box load module is made of gear-box, described gear-box comprises gear housing, input shaft links to each other with first order planet carrier by locking plate, first order planet carrier is supported on the casing by tapered roller bearing, planet carrier and planet pin are interference fit, first order planet wheel is supported on the first order planet pin by Biserial cylindrical roller bearing, engagement in first order planet wheel and the first order ring gear, first order ring gear is fixed on casing and is fixed in the casing, first order planet wheel and the outer gearing of first order sun wheel shaft, second level planet carrier is meshed by spline with first order sun wheel shaft, second level planet carrier is supported on the casing by tapered roller bearing, with second level planet wheel shaft be interference fit, second level planet wheel is supported on the planet wheel shaft of the second level by roller bearing, engagement in second level planet wheel and the second level ring gear, second level ring gear is fixed by screws on the casing, second level planet wheel and second level sun wheel shaft outer gearing, second level sun wheel shaft connects the generator input shaft.
Described first order planet wheel has three or four, first order planet wheel circumference uniform distribution.
Described second level planet wheel has three or four, second level planet wheel circumference uniform distribution.
Use the utility model effect remarkable: gear-box is installed in the structure on the nacelle chassis, and center of gravity is placed in the middle, has reduced head load, has avoided making the shortcoming of the joint wearing and tearing of cabin, wheel hub.Gear-box load module and the installation of generator load module one and gear-box load module output terminal and generator load module input end are on same axis, generator and gear-box take up room little and that centering is installed is fine, compact structure, reduce the vibration of engine room foundation, can finish on ground the installation of gear-box and generator, be convenient to lifting.
The utility model gearbox adopts that the NGW planetary gear train has compact structure, volume is little, quality is little, bearing capacity is large, running noises is little, efficient is high and the advantage such as the life-span is long.The utility model adopts the middling speed transmission of two-stage NGW planetary gear train, has reduced at a high speed level, makes structure compacter, reduced gear-box and taken up room, reduced the rate of fault of gear-box, made the input shaft of gear-box and output shaft on a center line, when assembling with generator, increased centering.
Description of drawings
Fig. 1 is a kind of structural representation of semi-direct driving wind electric drive system.
Fig. 2 is a kind of sectional drawing of semi-direct driving wind electric drive system gear box structure.
Fig. 3 is a kind of semi-direct driving wind electric drive system speed increaser principle schematic.
1-blade among the figure, 2-wheel hub, the load module of 3-wheel hub rotor, the load module of 4-gear-box, the load module of 5-generator, 6-engine room foundation, 7-pylon, 8-locking plate, 9-first order planet carrier, 10-tapered roller bearing, 11-first order planet wheel shaft, 12-first order planet wheel, 13-first order ring gear, 14-Biserial cylindrical roller bearing, 15-first order sun wheel shaft, 16-gear case body, 17-second level ring gear, 18-roller bearing, 19-second level planet wheel shaft, 20-second level planet wheel, 21-second level planet carrier, 22-second level sun wheel shaft, 23-long cover, 24-coupling.
Embodiment
Below in conjunction with accompanying drawing the utility model is done in further detail description.
Embodiment 1
As shown in Figure 1, complete machine mainly is divided into 3 large modules, wheel hub rotor load module 3, and gear-box load module 4 and generator load module 5, other structure also comprises blade 1, wheel hub 2, engine room foundation 6 and pylon 7.Wheel hub 2 is connected with blade 1 by bolt, and the energy that acts on the blade 1 is delivered on the wheel hub 2, and in wheel hub rotor load module 3 inside, wheel hub 2 is connected with main shaft by bolt; Generator module 5 directly is assemblied in the gear-box load module 4, and gear-box is fixed on the engine room foundation 6.Gear-box load module 4 and generator load module 5 one are installed, gear-box load module 4 output terminals connect generator load module 5 input ends, gear-box load module 4 output terminals and generator load module 5 input ends on same axis, gear-box load module 4 with generator load module are connected and connect rear center and be positioned on the pylon.
As shown in Figure 2, speed increaser adopts two-stage NGW planetary gear train, and main shaft links to each other by the inner first order planet carrier 9 of locking plate 8 and gear-box, and then transfers energy on the first order planet carrier 9; First order planet carrier 9 is supported on the casing 16 by tapered roller bearing 10 as the input of speed increaser, and planet carrier and planet pin are interference fit, so energy is passed to first order planet wheel shaft 11; Three first order planet wheels 12 of circumference uniform distribution are supported on the first order planet pin 11 by Biserial cylindrical roller bearing 14, with the 13 interior engagements of first order ring gear, first order ring gear 13 is fixed by screws on the casing 16, under the effect of first order planet wheel shaft 11, realize rotation and the revolution of first order planet wheel 12; First order planet wheel 12 and 15 outer gearings of first order sun wheel shaft, so with transmission of power to first order sun wheel shaft 15, as the output of first order planetary gear train.Second level planet carrier 21 and first order sun wheel shaft 15 are meshed by spline, realize the transmission of power of first order star-wheel train to second level planetary gear train, and wherein second level planet carrier 21 is as the input of second level planetary gear train; Second level planet carrier 21 is supported on the casing 16 by tapered roller bearing 10, with second level planet wheel shaft 19 be interference fit, so energy is passed to second level planet wheel shaft 12; Three second level planet wheels 20 of circumference uniform distribution are supported on the second level planet wheel shaft 19 by roller bearing 18, with the 17 interior engagements of second level ring gear, second level ring gear 17 is fixed by screws on the casing 16, under the effect of second level planet wheel shaft 19, realize rotation and the revolution of second level planet wheel 20; Second level planet wheel 20 and 22 outer gearings of second level sun wheel shaft, so with transmission of power to second level sun wheel shaft 22, as the output of gear-box.
The utility model adopts generator to be directly installed on the gear-box, and gear-box is installed in the structure on the nacelle chassis.Can avoid like this direct drive generator very huge, and generally be positioned at the joint of wheel hub 2 and engine room foundation 6, it is centered close to the front end of pylon 7 center lines, increased head load, easily make the shortcoming of the joint wearing and tearing of wheel hub 2 and engine room foundation 6, simultaneously also avoid double-fed type gear-box and generator to be installed in simultaneously on the engine room foundation 6, caused the installation centering of generator and gear-box very poor, and the large shortcoming that takes up room.Such design, compact structure reduces the vibration of engine room foundation 6, can finish on ground the installation of gear-box and generator, is convenient to lifting.
Claims (4)
1. semi-direct driving wind electric drive system, it comprises the load module of wheel hub rotor, gear-box load module, generator load module, engine room foundation, wheel hub and blade, engine room foundation is installed on the frame tower, engine room foundation is installed the load module of wheel hub rotor from front to back successively, gear-box load module, generator load module, wheel hub rotor load module front end is installed wheel hub, blade is installed on the wheel hub, it is characterized in that: described gear-box load module and generator load module one are installed, gear-box load module output terminal connects generator load module input end, and gear-box load module output terminal and generator load module input end are on same axis.
2. a kind of semi-direct driving wind electric drive system according to claim 1, it is characterized in that: described gear-box load module is made of gear-box, described gear-box comprises gear housing, input shaft links to each other with first order planet carrier by locking plate, first order planet carrier is supported on the casing by tapered roller bearing, planet carrier and planet pin are interference fit, first order planet wheel is supported on the first order planet pin by Biserial cylindrical roller bearing, engagement in first order planet wheel and the first order ring gear, first order ring gear is fixed on casing and is fixed in the casing, first order planet wheel and the outer gearing of first order sun wheel shaft, second level planet carrier is meshed by spline with first order sun wheel shaft, second level planet carrier is supported on the casing by tapered roller bearing, with second level planet wheel shaft be interference fit, second level planet wheel is supported on the planet wheel shaft of the second level by roller bearing, engagement in second level planet wheel and the second level ring gear, second level ring gear is fixed by screws on the casing, second level planet wheel and second level sun wheel shaft outer gearing, second level sun wheel shaft connects the generator input shaft.
3. a kind of semi-direct driving wind electric drive system according to claim 2, it is characterized in that: described first order planet wheel has three or four, first order planet wheel circumference uniform distribution.
4. a kind of semi-direct driving wind electric drive system according to claim 2, it is characterized in that: described second level planet wheel has three or four, second level planet wheel circumference uniform distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202103249U CN203248322U (en) | 2013-04-24 | 2013-04-24 | Semi-directly-driving wind power drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202103249U CN203248322U (en) | 2013-04-24 | 2013-04-24 | Semi-directly-driving wind power drive system |
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| CN203248322U true CN203248322U (en) | 2013-10-23 |
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| CN2013202103249U Expired - Fee Related CN203248322U (en) | 2013-04-24 | 2013-04-24 | Semi-directly-driving wind power drive system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216400A (en) * | 2013-04-24 | 2013-07-24 | 大连理工大学 | Half-direct-driven wind power transmission system |
| CN104816127A (en) * | 2015-03-31 | 2015-08-05 | 攀钢集团工程技术有限公司 | Connecting method and structure of lifting roller shaft of sawing and drilling machine and hollow shaft of speed reducer |
| CN105202157A (en) * | 2015-10-21 | 2015-12-30 | 大连理工大学 | Power shunt type wind power gear box body |
-
2013
- 2013-04-24 CN CN2013202103249U patent/CN203248322U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216400A (en) * | 2013-04-24 | 2013-07-24 | 大连理工大学 | Half-direct-driven wind power transmission system |
| CN104816127A (en) * | 2015-03-31 | 2015-08-05 | 攀钢集团工程技术有限公司 | Connecting method and structure of lifting roller shaft of sawing and drilling machine and hollow shaft of speed reducer |
| CN104816127B (en) * | 2015-03-31 | 2017-05-10 | 攀钢集团工程技术有限公司 | Connecting method and structure of lifting roller shaft of sawing and drilling machine and hollow shaft of speed reducer |
| CN105202157A (en) * | 2015-10-21 | 2015-12-30 | 大连理工大学 | Power shunt type wind power gear box body |
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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: 20131023 Termination date: 20140424 |