CN101363407A - Wind generating set - Google Patents
Wind generating set Download PDFInfo
- Publication number
- CN101363407A CN101363407A CNA2008100429613A CN200810042961A CN101363407A CN 101363407 A CN101363407 A CN 101363407A CN A2008100429613 A CNA2008100429613 A CN A2008100429613A CN 200810042961 A CN200810042961 A CN 200810042961A CN 101363407 A CN101363407 A CN 101363407A
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- Prior art keywords
- box
- gear
- generator
- wind power
- generating set
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/28—Toothed gearings for conveying rotary motion with gears having orbital motion
- F16H1/46—Systems consisting of a plurality of gear trains each with orbital gears, i.e. systems having three or more central gears
Abstract
The invention discloses a wind power generator group, mainly comprising a wind wheel, a gear box, a main shaft brake disc and a generator. A hub of the wind wheel is directly connected with the main shaft of a planet carrier of the gear box; the main shaft brake disc is connected with the rotor shaft of the generator by integral keys or flat keys; coaxial encapsulation is carried out on the whole or part of the output shaft of the gear box by the rotor shaft of the generator, therefore the gear box and the generator form a coaxial transportation chain with small size in axial direction and compact whole structure. The gear box uses a second class planet gear typed gear box, with a transmission ratio ranging between 1:15 to 1:25. By using the transmission form, the gear box has the advantages of more compact structure, smaller volume, and lighter weight in the situation of the same speed increasing ratio. The rated rev of the output shaft of the gear box, namely a high speed shaft, is only 375rpm, thus having low rotate speed, low noise and long service life.
Description
Technical field
The present invention relates to technical field of wind power generation, relate in particular to a kind of wind power generating set.
Background technique
Along with science and technology development, wind generating technology is progressively ripe, and that the scientific research personnel who is devoted to wind power technology has developed is more large-scale, the better wind power generating set of performance and the trial run of it having been put into production.At present, wind power generating set type commonly used has two types of double-fed type and directly driving types.
Double-fed type wind-powered electricity generation unit adopts the structure of " wind wheel+main shaft and bearing+speedup box+coupling+generator ", and the wind wheel wheel hub is connected with the speedup box input end by main shaft and bearing, and the output terminal of speedup box is connected with generator by coupling.The power that wind wheel produces passes to gear-box through main shaft, after the gear-box speedup, is sent to generator again and generates electricity then.This unit axial dimension is long, and structure is disperseed; Speedup box is the third-level planetary gear-box, speed ratio generally about 1:100, gear-box rotating speed height, noise is big, the rate of fault height.
The direct drive wind power unit adopts the structure of " wind wheel+generator ", and wind wheel directly drives generator for electricity generation.Generator speed is very low, and number of poles is many, and diameter is very big, and 1.5MW direct drive generator diameter generally all more than 5m, needs large-sized processing equipment, the processing cost height, and difficulty is big; Huge diameter causes transportation clearance serious super wide, and the land route transportation can't be passed through charge station, tunnel and culvert smoothly, brings very big inconvenience to transportation, and the production development of MW level large-scale wind electricity unit is subjected to serious restriction.
External a small amount of unit that adopts the combination drive mode, gear-box adopts one-level planet speedup, and speed ratio is about 1:10, and its overall structure force-bearing situation is not good, and maintenance and inconvenient is used fewer.
Summary of the invention
The present invention is directed to above-mentioned shortcoming of the prior art, a kind of wind power generating set is provided.
A kind of wind power generating set, comprise wind wheel, gear-box, generator, main shaft brake disc, cabin underframe, described main brake dish is connected with the end, outer end of the rotor shaft of described generator, the wheel hub of described wind wheel directly connects the planet carrier of described gear-box, and the rotor shaft of described generator is in the axial direction with the coaxial parcel of the output shaft of described gear-box.
Preferably, the rotor shaft of described generator is in the axial direction with the coaxial parcel of the output shaft of described gear-box, the rotor shaft that is specially described generator is in the axial direction with the whole coaxial parcels of the output shaft of described gear-box, and the output shaft of described gear-box is connected by key with described main shaft brake disc.
Preferably, the rotor shaft of described generator is in the axial direction with the coaxial parcel of the output shaft of described gear-box, the rotor shaft that is specially described generator is in the axial direction with the coaxial parcel of output shaft part of described gear-box, and the output shaft of described gear-box is connected by key with the rotor shaft of described generator.
Preferably, described generator and described gear-box adopt the seam location.
Preferably, described gear-box is connected by flange with the adjacent face of described generator.
Preferably, described cabin underframe is provided with the tubular flange, an end mounting teeth roller box of described tubular flange, and the other end is installed generator.
Preferably, between described gearbox output shaft and described generator rotor shaft, be provided with the co-axial seal pipe.
Preferably, described cabin underframe is a protrusive type cabin underframe.
Preferably, described gear-box is provided with four bearings, and described bearing is connected by high-strength bolt with described cabin underframe.
Preferably, described gear-box planet carrier adopts main bearing and two bearings of auxiliary bearing, and main bearing is a tapered roller bearing, and auxiliary bearing is a roller bearing.
Preferably, described gear-box ring gear and housing adopt split-type structural, are provided with locating stud between the two.
Preferably, described gear-box adopts positive drive type thin oil splash lubrication, and gear-box is provided with high temperature radiation system and low-temperature heat system.
Preferably, be provided with oily temperature detecting sensor, oil pressure detecting sensor and main bearing temperature detection sensor in the described gear-box, be used for oil temperature, oil pressure and main bearing temperature in the measuring gear case.
The invention provides a kind of wind power generating set, comprise: wind wheel, gear-box, generator, main shaft brake disc and cabin underframe, the planet carrier main shaft of the wheel hub of wind wheel and gear-box is direct-connected, the main shaft brake disc is connected with the end, outer end of the rotor shaft of generator, generator rotor shaft is with all or part of coaxial parcel of gearbox output shaft, and described generator is connected by flange with the adjacent face of described gear-box.Gear-box and generator just form a coaxial transmission chain like this, and axial dimension is short, compact overall structure.
Gear-box adopts secondary planet formula gear-box, and velocity ratio adopts the gear-box of this type of belt drive between 1:15～1:25, under the situation of identical speed increasing ratio, can accomplish that structure is compact more, and volume is littler, weight is lighter; Gearbox output shaft is that the high speed shaft rated speed is low, noise is little, the life-span is long.Described gear-box planet carrier adopts main bearing and two bearings of auxiliary bearing, main bearing is a tapered roller bearing, auxiliary bearing is a roller bearing, this structure makes that planet carrier stand under load situation is good, and wind wheel load is directly passed to gear box casing, avoid the strength of gear in the drive train.
Description of drawings
The wind-powered electricity generation unit front view that Fig. 1 provides for first embodiment of the invention;
The wind-powered electricity generation unit partial enlarged view that Fig. 2 provides for first embodiment of the invention;
Fig. 3 be in the second embodiment of the invention generator rotor shaft with the coaxial parcel view of gearbox output shaft part:
Fig. 4 is a third embodiment of the invention generator set schematic representation;
Wherein among Fig. 1-Fig. 4:
Embodiment
Below in conjunction with embodiment content of the present invention is described in detail, concrete syntax in the embodiment or order only are explanations and exemplary, should any restriction not arranged to protection scope of the present invention.
Please referring to Fig. 1, the front view of the generator set that Fig. 1 provides for first embodiment of the invention.
As shown in Figure 1, this generator set comprises: wind wheel 1, planet carrier main shaft 2, gear-box 3, generator 4, gearbox output shaft 5, generator rotor shaft 6, main shaft brake disc 7, Sealed casing pipe 8, cabin underframe 9, pylon 10, gear-box bearing 11, auxiliary bearing 12, main bearing 13, lasso 14, baffle ring 15 etc.
As shown in Figure 1 and Figure 2, the wheel hub of wind wheel 1 directly connects first order planet carrier main shaft 2, gearbox output shaft 5 is connected by spline or flat key with main shaft brake disc 7, main brake dish 7 adopts spline or flat key to be connected with generator rotor shaft 6, and generator rotor shaft 6 is in the axial direction with gearbox output shaft 5 whole coaxial parcels; Between gearbox output shaft 5 and generator rotor shaft, be provided with co-axial seal pipe 8; Gear-box 3 adopts the seam location with generator 4, and gear-box 3 all is designed to flange shape end face with the end face of generator 4 abutting ends, and both ends of the surface fasten during installation, fixes by bolt, and two end faces form flange and connect.The bottom of gear-box 3 is provided with gear-box bearing 11, and gear-box bearing 11 and engine room foundation 9 are connected by high-strength bolt, and engine room foundation 9 is the FC engine room foundation, and engine room foundation 9 is fixed on the pylon 10.
The power transmission that wind wheel 1 produces is given gear-box first order planet carrier main shaft 2, after secondary planet formula gear-box speedup, by gear-box second level central gear shaft is gearbox output shaft 5 outputs, is transferred to generator rotor shaft 6 through main shaft brake disc 7, and generator rotor shaft 6 begins rotation.
In the preferred scheme, described gear-box 3 adopts positive drive type thin oil splash lubrication, and is furnished with high temperature radiation system, low-temperature heat system, makes gear work under the environment of the best all the time, and reliability and life-span improve greatly.
In the preferred scheme, in gear-box 3, be equipped with oily temperature detecting sensor, oil pressure detecting sensor and main bearing temperature detection sensor, oil temperature, oil pressure and main bearing temperature in the gear-box are carried out fast detecting and diagnosis, as timely warning of breaking down.
Below introduce the advantage of the foregoing description.
Be provided with co-axial seal pipe 8 between gearbox output shaft 5 and generator rotor shaft, this mechanism makes the dynamic seal of axle head of gearbox output shaft 5 can be arranged on the outboard end of generator, checks, changes Sealing and be very easy to.
The cabin chassis design becomes protrusive type cabin underframe, and this cabin underframe just can bear very big moment, thereby the housing that has effectively reduced gear-box is stressed.This structure can also make that the position of centre of gravity of the Transmitted chains that gear-box 3 and generator 4 are formed is nearer apart from pylon, the bending moment that pylon bears is littler, gear-box two ends load ratio is balanced, and load can be directly delivered to the cabin underframe, effectively reduced the load of gear box casing and generator housing, stressing conditions improves.
Gear-box adopts secondary planetary gear formula gear-box case, and velocity ratio adopts the gear-box of this type of belt drive between 1:15～1:25, under the situation of identical speed increasing ratio, can accomplish that structure is compact more.Volume is littler, weight is lighter; Gearbox output shaft 5 is that the high speed shaft rated speed only has 375rpm, and rotating speed is low like this, noise is little, the life-span is long.
The gear-box planet carrier adopts the supporting mechanism of main bearing 13 and 12 two bearings of auxiliary bearing, and gear-box ring gear and gear box casing adopt split-type structural simultaneously, and design has locating stud between gear-box ring gear and the gear box casing.This structure, planet carrier stand under load situation is good, axial, radial force that wind wheel aerodynamic loading and weight cause, pass to gear-box 3 housings through gear-box planet carrier 2, baffle ring 15, main bearing 13, cover Figure 14, auxiliary bearing 12, give cabin underframe 9 and pylon 10 through gear-box bearing 11 with loading transfer again, make the strength of gear in the gear-box little, move more steadily, noise is littler.
The foregoing description is a preferred embodiment of the present invention, should be clear and definite, satisfying under the situation of above-mentioned thinking, and this embodiment can make further improvement.For example, gear-box can adopt multistage planet formula gear-box, the planet carrier main shaft is a gearbox input shaft, the afterbody sun wheel shaft is a gearbox output shaft, wind wheel wheel hub and gear-box first order planet carrier direct connection, gearbox output shaft is connected with the main brake dish by spline, and the main brake dish adopts flat key to be connected with generator rotor shaft; The number of lower gearbox portion bearing is unrestricted, can be four or six, firmly is connected with engine room foundation as long as can guarantee gear-box; Main bearing 13 and auxiliary bearing 12 selected bearings do not limit to above-described two kinds of bearings.
The foregoing description be the rotor shaft of generator in the axial direction to the whole coaxially wrapped situations of the output shaft of gear-box, gearbox output shaft is connected by spline or flat key with the main shaft brake disc.The present invention also comprises generator rotor shaft in the axial direction to the coaxially wrapped situation of output shaft part of gear-box, and second embodiment simply introduces this situation.
Please referring to Fig. 3, Fig. 3 be in the second embodiment of the invention generator rotor shaft with the coaxial parcel view of gearbox output shaft part.
As shown in Figure 3, generator rotor shaft 6 partly wraps up gearbox output shaft 5-1 in the axial direction, and generator rotor shaft 6 is connected by key with gearbox output shaft 5-1, and the end, outer end of generator rotor shaft and main shaft brake disc 7 are connected by key.All the other specific implementation process and first embodiment of present embodiment are similar, no longer are described in detail at this.
Among above-mentioned two embodiments, the end face of the abutting end of gear-box 3 and generator 4 all is designed to flange shape end face, and two end faces fasten, and use bolt, forms flange and connects, and the 3rd embodiment improves this structure.
Please referring to Fig. 4, the sketch of the wind power generating set that Fig. 4 provides for third embodiment of the invention.The structure of wind wheel 1, gear-box 3 and generator 4 and annexation and above-mentioned two embodiments are similar in the present embodiment, no longer are described in detail at this.
As shown in Figure 4, tubular flange 16 is set on engine room foundation, an end mounting teeth roller box 3 of tubular flange, an other end is installed generator 4.The wheel hub of wind wheel 1 and first order planet carrier main shaft 2 direct connections, gearbox output shaft 5 is connected by spline or flat key with main shaft brake disc 7, main brake dish 7 adopts spline or flat key to be connected with generator rotor shaft 6, generator rotor shaft 6 is with gearbox output shaft 5 whole coaxial parcels, be provided with co-axial seal pipe 8 between gearbox output shaft 5 and generator rotor shaft, gear-box 3 adopts the seam location with generator 4.When generator rotor shaft 6 during with the coaxial parcel of gearbox output shaft 5-1 part, main brake dish 7 adopts splines or flat key to be connected with generator rotor shaft 6, and rotor axis of electric 6 passes through spline or flat key with gearbox output shaft 5-1.Gear-box 3 and generator 4 abutting ends all are installed on the tubular flange, and the big flange of tubular can guarantee the coaxality that gear-box and generator are installed.This mechanism, axial, radial force that wind wheel aerodynamic loading and weight cause are directly delivered to the cabin underframe, and be stressed reasonable, guarantees that simultaneously structure is compact more, and overall volume is little, in light weight.
The above only is the description of preferred implementation of the present invention; should be understood that; because the finiteness of literal expression; and objectively have unlimited concrete structure; for those skilled in the art; under the prerequisite that does not break away from the principle of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (13)
1. wind power generating set, comprise wind wheel, gear-box, generator, main shaft brake disc, cabin underframe, it is characterized in that, described main brake dish is connected with the end, outer end of the rotor shaft of described generator, the wheel hub of described wind wheel directly connects the planet carrier of described gear-box, and the rotor shaft of described generator is in the axial direction with the coaxial parcel of the output shaft of described gear-box.
2. wind power generating set according to claim 1, it is characterized in that, the rotor shaft of described generator is in the axial direction with the coaxial parcel of the output shaft of described gear-box, the rotor shaft that is specially described generator is in the axial direction with the whole coaxial parcels of the output shaft of described gear-box, and the output shaft of described gear-box is connected by key with described main shaft brake disc.
3. wind power generating set according to claim 1, it is characterized in that, the rotor shaft of described generator is in the axial direction with the coaxial parcel of the output shaft of described gear-box, the rotor shaft that is specially described generator is in the axial direction with the coaxial parcel of output shaft part of described gear-box, and the output shaft of described gear-box is connected by key with the rotor shaft of described generator.
4. according to each described wind power generating set of claim 1-3, it is characterized in that described generator and described gear-box adopt the seam location.
5. wind power generating set according to claim 4 is characterized in that, described gear-box is connected by flange with the adjacent face of described generator.
6. wind power generating set according to claim 5 is characterized in that, described cabin underframe is provided with the tubular flange, an end mounting teeth roller box of described tubular flange, and the other end is installed generator.
7. wind power generating set according to claim 6 is characterized in that, is provided with the co-axial seal pipe between described gearbox output shaft and described generator rotor shaft.
8. wind power generating set according to claim 7 is characterized in that, described cabin underframe is a protrusive type cabin underframe.
9. wind power generating set according to claim 8 is characterized in that, described gear-box is provided with four bearings, and described bearing is connected by high-strength bolt with described cabin underframe.
10. wind power generating set according to claim 9 is characterized in that, described gear-box planet carrier adopts main bearing and two bearings of auxiliary bearing, and main bearing is a tapered roller bearing, and auxiliary bearing is a roller bearing.
11. wind power generating set according to claim 10 is characterized in that, described gear-box ring gear and housing adopt split-type structural, are provided with locating stud between the two.
12. wind power generating set according to claim 11 is characterized in that, described gear-box adopts positive drive type thin oil splash lubrication, and gear-box is provided with high temperature radiation system and low-temperature heat system.
13. wind power generating set according to claim 12 is characterized in that, is provided with oily temperature detecting sensor, oil pressure detecting sensor and main bearing temperature detection sensor in the described gear-box, is used for oil temperature, oil pressure and main bearing temperature in the measuring gear case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100429613A CN101363407A (en) | 2008-09-12 | 2008-09-12 | Wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100429613A CN101363407A (en) | 2008-09-12 | 2008-09-12 | Wind generating set |
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| Publication Number | Publication Date |
|---|---|
| CN101363407A true CN101363407A (en) | 2009-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100429613A Pending CN101363407A (en) | 2008-09-12 | 2008-09-12 | Wind generating set |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102418774A (en) * | 2010-09-28 | 2012-04-18 | 通用电气公司 | Compact geared drive train |
| EP2508777A1 (en) * | 2011-04-04 | 2012-10-10 | Siemens Aktiengesellschaft | Drive system for a wind turbine |
| CN103089542A (en) * | 2011-10-28 | 2013-05-08 | 华锐风电科技(集团)股份有限公司 | Transmission system of wind generating set and wind generating set |
| EP2617994A1 (en) * | 2012-01-20 | 2013-07-24 | ZF Wind Power Antwerpen NV | Drive train for a wind turbine |
| CN103216400A (en) * | 2013-04-24 | 2013-07-24 | 大连理工大学 | Half-direct-driven wind power transmission system |
| CN103378687A (en) * | 2012-04-16 | 2013-10-30 | 西门子公司 | Drive device for a motor vehicle |
| EP2273112A3 (en) * | 2009-06-30 | 2014-03-26 | General Electric Company | Drivetrain system for a wind turbine generator |
| CN105240216A (en) * | 2015-10-16 | 2016-01-13 | 广东明阳风电产业集团有限公司 | Improved structure of compact type wind power generating set |
| CN106593780A (en) * | 2016-12-30 | 2017-04-26 | 山东中车风电有限公司 | Gear case and generator integrated design transmission structure |
| CN103114974B (en) * | 2011-11-16 | 2017-10-03 | 通用电气公司 | Distribute the gear-box of load path |
| CN107339196A (en) * | 2017-08-30 | 2017-11-10 | 合肥敏喆信息科技有限公司 | A kind of wind-driven generator Intelligent brake system |
| CN107476942A (en) * | 2017-07-31 | 2017-12-15 | 南京求精机械厂 | A kind of wind power gear case apparatus |
| CN108757875A (en) * | 2018-06-12 | 2018-11-06 | 重庆大学 | A kind of low wind speed wind turbine gearbox drive mechanism |
| CN109416028A (en) * | 2016-07-07 | 2019-03-01 | Zf 腓德烈斯哈芬股份公司 | Transmission mechanism cover for wind-power electricity generation transmission mechanism |
| CN113217612A (en) * | 2021-06-08 | 2021-08-06 | 北京三力新能科技有限公司 | Gearbox and generator integration scheme for wind driven generator |
| WO2023134268A1 (en) * | 2022-01-13 | 2023-07-20 | 中车山东风电有限公司 | Transmission chain of wind turbine generator system |
-
2008
- 2008-09-12 CN CNA2008100429613A patent/CN101363407A/en active Pending
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2273112A3 (en) * | 2009-06-30 | 2014-03-26 | General Electric Company | Drivetrain system for a wind turbine generator |
| CN102418774B (en) * | 2010-09-28 | 2016-08-24 | 通用电气公司 | Compact geared drive train |
| CN102418774A (en) * | 2010-09-28 | 2012-04-18 | 通用电气公司 | Compact geared drive train |
| EP2508777A1 (en) * | 2011-04-04 | 2012-10-10 | Siemens Aktiengesellschaft | Drive system for a wind turbine |
| CN102734090A (en) * | 2011-04-04 | 2012-10-17 | 西门子公司 | Drive system for wind turbine |
| CN102734091A (en) * | 2011-04-04 | 2012-10-17 | 西门子公司 | Driver system for wind turbine |
| CN102734090B (en) * | 2011-04-04 | 2015-12-02 | 西门子公司 | For the transmission system of wind power plant |
| US9151275B2 (en) | 2011-04-04 | 2015-10-06 | Siemens Aktiengesellschaft | Drive system for a wind turbine |
| CN102734091B (en) * | 2011-04-04 | 2014-09-17 | 西门子公司 | Driver system for wind turbine |
| CN103089542A (en) * | 2011-10-28 | 2013-05-08 | 华锐风电科技(集团)股份有限公司 | Transmission system of wind generating set and wind generating set |
| CN103114974B (en) * | 2011-11-16 | 2017-10-03 | 通用电气公司 | Distribute the gear-box of load path |
| US9018789B2 (en) | 2012-01-20 | 2015-04-28 | Zf Wind Power Antwerpen N.V. | Drive train for a wind turbine |
| CN103216399A (en) * | 2012-01-20 | 2013-07-24 | Zf风能安特卫普有限公司 | Drive train for a wind turbine |
| EP2617994A1 (en) * | 2012-01-20 | 2013-07-24 | ZF Wind Power Antwerpen NV | Drive train for a wind turbine |
| CN103216399B (en) * | 2012-01-20 | 2018-03-30 | Zf风能安特卫普有限公司 | Power train for wind turbine |
| CN103378687A (en) * | 2012-04-16 | 2013-10-30 | 西门子公司 | Drive device for a motor vehicle |
| CN103378687B (en) * | 2012-04-16 | 2017-03-01 | 西门子公司 | Driving equipment for automobile |
| CN103216400A (en) * | 2013-04-24 | 2013-07-24 | 大连理工大学 | Half-direct-driven wind power transmission system |
| CN105240216A (en) * | 2015-10-16 | 2016-01-13 | 广东明阳风电产业集团有限公司 | Improved structure of compact type wind power generating set |
| CN105240216B (en) * | 2015-10-16 | 2017-12-05 | 明阳智慧能源集团股份公司 | A kind of improved structure of compact wind power generating set |
| CN109416028A (en) * | 2016-07-07 | 2019-03-01 | Zf 腓德烈斯哈芬股份公司 | Transmission mechanism cover for wind-power electricity generation transmission mechanism |
| CN109416028B (en) * | 2016-07-07 | 2020-11-03 | Zf 腓德烈斯哈芬股份公司 | Transmission cover for wind power generation transmission |
| CN106593780A (en) * | 2016-12-30 | 2017-04-26 | 山东中车风电有限公司 | Gear case and generator integrated design transmission structure |
| CN107476942A (en) * | 2017-07-31 | 2017-12-15 | 南京求精机械厂 | A kind of wind power gear case apparatus |
| CN107339196A (en) * | 2017-08-30 | 2017-11-10 | 合肥敏喆信息科技有限公司 | A kind of wind-driven generator Intelligent brake system |
| CN108757875A (en) * | 2018-06-12 | 2018-11-06 | 重庆大学 | A kind of low wind speed wind turbine gearbox drive mechanism |
| CN113217612A (en) * | 2021-06-08 | 2021-08-06 | 北京三力新能科技有限公司 | Gearbox and generator integration scheme for wind driven generator |
| WO2023134268A1 (en) * | 2022-01-13 | 2023-07-20 | 中车山东风电有限公司 | Transmission chain of wind turbine generator system |
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Application publication date: 20090211 |