CN209324969U - A kind of semi-directly driven wind-powered gear-box capacity shunting drive mechanism - Google Patents
A kind of semi-directly driven wind-powered gear-box capacity shunting drive mechanism Download PDFInfo
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- CN209324969U CN209324969U CN201821938886.4U CN201821938886U CN209324969U CN 209324969 U CN209324969 U CN 209324969U CN 201821938886 U CN201821938886 U CN 201821938886U CN 209324969 U CN209324969 U CN 209324969U
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- Prior art keywords
- gear
- planetary gear
- generator
- gear train
- hub side
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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
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Abstract
The utility model discloses a kind of semi-directly driven wind-powered gear-box capacities to shunt drive mechanism, including the base bearing and gear for two stage planetary gear train using single biserial flange form main shaft bearing structure, base bearing is built in gear-box, gear for two stage planetary gear train includes hub side planetary gear train and generator side planetary gear train, the ring gear of hub side planetary gear train and generator side planetary gear train is solidified as a whole, constitute duplex ring gear, input power is passed in respective Planetary Gear Transmission from duplex ring gear, generator side planet carrier is fixed together with base bearing and generator casing, generator side sun gear is connect with hub side planet carrier, hub side sun gear is connect with generator, by hub side sun gear by power transfer to generator.Power density can be improved 30% or more, realize that power density maximizes by the utility model under identical weight and size limitation.
Description
Technical field
The utility model relates to the technical fields of wind turbine gearbox transmission, refer in particular to a kind of semi-direct driving wind electrical gearbox function
Rate shunts drive mechanism.
Background technique
It is known in the industry, in the transmission system of traditional wind power generating set, mainly use long main shaft and high-speed gear box.This
Kind structure is used below more in 2MW platform, but entire legacy system axial dimension is very long, gear-box radial dimension and axial direction
Size is also larger, and gearbox high-speed grade failure is more.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art and disadvantage, propose a kind of semi-directly driven wind-powered gear
Case power dividing drive mechanism drives legacy system for high-power compacting half is straight, intermediate gear case is integrated with main shaft bearing
Together, gear-box shunts differential+flexible latch structure using two stage power, can be by function under identical weight and size limitation
Rate density improves 30% or more, realizes that power density maximizes.
To achieve the above object, a kind of technical solution provided by the utility model are as follows: semi-directly driven wind-powered gear-box capacity
Drive mechanism is shunted, including the base bearing and gear for two stage planetary gear train using single biserial flange form main shaft bearing structure, wherein described
Base bearing is built in gear-box, for bearing the power and bending load that wind wheel passes over, reduces alternating load to gear-box
Impact, the gear for two stage planetary gear train include close to hub side hub side planetary gear train and close to generator side generator side
The ring gear of planetary gear train, the hub side planetary gear train and generator side planetary gear train is solidified as a whole, and constitutes duplex ring gear,
The duplex ring gear is connect with wind wheel, and input power is passed in respective Planetary Gear Transmission from duplex ring gear, described
Generator side planet carrier and the base bearing and generator casing of generator side planetary gear train are fixed together, the generator skidding
The generator side sun gear of star wheel series is connect with the hub side planet carrier of hub side planetary gear train, the hub side planetary gear train
Hub side sun gear is connect with generator, and the ring gear power of the generator side planetary gear train passes through its planetary gear, generator
Side sun gear is transmitted to hub side planet carrier, using the planetary gear and ring gear power combing of hub side planetary gear train, finally
By hub side sun gear by power transfer to generator.
Further, each planetary gear is carried using flexible latch structure, the flexibility latch structure by flexible pin shaft and
Guide composition, the flexible pin shaft and planet carrier are interference fitted, and the guide and flexible pin shaft are interference fitted, and support planet axis
It holds and planetary gear, the compliant pin when two tangential forces of ring gear and sun gear are applied on planetary gear, on planet carrier
Angle winding degree caused by bending shaft can be bent caused angle winding degree institute from the guide of the flexible pin shaft other end by opposite direction
It offsets, makes each planetary gear parallel flotation, and then make load mean allocation between each planetary gear.
The utility model compared with prior art, have the following advantages that with the utility model has the advantages that
1, this drive mechanism does not use long main shaft, and uses single biserial flange form main shaft bearing structure (including ring gear
It is integrated), structure is more compact.
2, differential using two stage power shunting, it is suitable for high-power wind turbine unit, structure is more compact.
3, planetary gear floating load balancing is made using flexible latch structure, makes the loaded more uniform of multirow star wheel series, transmission is more
Steadily, the service life is effectively improved.
4, entire drive train power density is very high, under identical weight and size limitation, power can be improved
30% or more.
Detailed description of the invention
Fig. 1 is that semi-directly driven wind-powered gear-box capacity shunts drive mechanism schematic diagram.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
Shown in Figure 1, semi-directly driven wind-powered gear-box capacity provided by the present embodiment shunts drive mechanism, including uses
The base bearing 1 and gear for two stage planetary gear train of single biserial flange form main shaft bearing structure, wherein the base bearing 1 is built in gear-box
In, for bearing the load such as power and moment of flexure that wind wheel passes over, reduce impact of the alternating load to gear-box, the two-stage row
Star wheel series include the hub side planetary gear train close to hub side and the generator side planetary gear train close to generator side, the wheel hub
The ring gear of skidding star wheel series and generator side planetary gear train is solidified as a whole, and constitutes duplex ring gear 2, the duplex ring gear 2
It is connect with wind wheel, input power is passed in respective Planetary Gear Transmission from duplex ring gear 2, the generator side planetary gear
The generator side planet carrier 3 of system is fixed together with base bearing 1 and generator casing 4, the hair of the generator side planetary gear train
Motor side sun gear 5 is connect with the hub side planet carrier 6 of hub side planetary gear train, and the hub side of the hub side planetary gear train is too
Sun wheel 7 is connect with generator, and the ring gear power of the generator side planetary gear train passes through its planetary gear 8, the generator side sun
Wheel 5 is transmitted to hub side planet carrier 6, using the planetary gear 9 and ring gear power combing of hub side planetary gear train, finally by taking turns
Hub side sun gear 7 is by power transfer to generator.
In addition, the planetary gear 8,9 is carried using flexible latch structure, the flexibility latch structure is by flexible pin shaft 10
It being formed with guide 11, the flexible pin shaft 10 is interference fitted with planet carrier, and the guide 11 is interference fitted with flexible pin shaft 10, and
Support planetary bearing and planetary gear.When two tangential forces of ring gear and sun gear are applied on planetary gear, planet carrier is come from
On flexible pin shaft be bent caused by angle winding degree can be caused by guide bending of the opposite direction from the flexible pin shaft other end
Angle winding degree is offset, and each planetary gear parallel flotation is made, and then makes load mean allocation between each planetary gear.
The examples of implementation of the above are only the preferred embodiment of the utility model, not limit the utility model with this
Practical range, therefore all shapes according to the utility model, change made by principle, it should all cover in the protection scope of the utility model
It is interior.
Claims (2)
1. a kind of semi-directly driven wind-powered gear-box capacity shunts drive mechanism, it is characterised in that: including using single biserial flange form
The base bearing and gear for two stage planetary gear train of main shaft bearing structure, wherein the base bearing is built in gear-box, is passed for bearing wind wheel
The power and bending load passed, reduce impact of the alternating load to gear-box, and the gear for two stage planetary gear train includes close to wheel hub
The generator side planetary gear train of the hub side planetary gear train of side and close generator side, the hub side planetary gear train and generator
The ring gear of skidding star wheel series is solidified as a whole, and constitutes duplex ring gear, and the duplex ring gear connect with wind wheel, input power from
Duplex ring gear is passed in respective Planetary Gear Transmission, the generator side planet carrier of the generator side planetary gear train and master
Bearing and generator casing are fixed together, the generator side sun gear and hub side planetary gear of the generator side planetary gear train
The hub side planet carrier of system connects, and the hub side sun gear of the hub side planetary gear train is connect with generator, the generator
The ring gear power of skidding star wheel series is transmitted to hub side planet carrier by its planetary gear, generator side sun gear, using wheel
The planetary gears of hub skidding star wheel series and ring gear power combing, finally by hub side sun gear by power transfer to generator.
2. a kind of semi-directly driven wind-powered gear-box capacity according to claim 1 shunts drive mechanism, it is characterised in that: each
Planetary gear is carried using flexible latch structure, and the flexibility latch structure is made of flexible pin shaft and guide, the compliant pin
Axis and planet carrier are interference fitted, and the guide and flexible pin shaft are interference fitted, and support planetary bearing and planetary gear, work as ring gear
When being applied on planetary gear with two tangential forces of sun gear, angle winding degree caused by the flexible pin shaft on planet carrier is bent
Caused angle winding degree can be bent from the guide of the flexible pin shaft other end by opposite direction to offset, keep each planetary gear parallel
It floats, and then makes load mean allocation between each planetary gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821938886.4U CN209324969U (en) | 2018-11-22 | 2018-11-22 | A kind of semi-directly driven wind-powered gear-box capacity shunting drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821938886.4U CN209324969U (en) | 2018-11-22 | 2018-11-22 | A kind of semi-directly driven wind-powered gear-box capacity shunting drive mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324969U true CN209324969U (en) | 2019-08-30 |
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ID=67711347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821938886.4U Active CN209324969U (en) | 2018-11-22 | 2018-11-22 | A kind of semi-directly driven wind-powered gear-box capacity shunting drive mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN209324969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905974A (en) * | 2019-11-25 | 2020-03-24 | 明阳智慧能源集团股份公司 | Compact semi-direct-drive wind-driven electric gear box power split transmission structure |
-
2018
- 2018-11-22 CN CN201821938886.4U patent/CN209324969U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905974A (en) * | 2019-11-25 | 2020-03-24 | 明阳智慧能源集团股份公司 | Compact semi-direct-drive wind-driven electric gear box power split transmission structure |
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