CN209324950U - A kind of half straight wind turbine gearbox drive mechanism for driving power dividing type - Google Patents
A kind of half straight wind turbine gearbox drive mechanism for driving power dividing type Download PDFInfo
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- CN209324950U CN209324950U CN201821938715.1U CN201821938715U CN209324950U CN 209324950 U CN209324950 U CN 209324950U CN 201821938715 U CN201821938715 U CN 201821938715U CN 209324950 U CN209324950 U CN 209324950U
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- generator
- gear
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- bearing
- primary planet
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Abstract
The utility model discloses a kind of half straight wind turbine gearbox drive mechanisms for driving power dividing type, including base bearing, hub side primary planet train and generator side primary planet train, hub side ring gear becomes one with generator side ring gear, constitute short main axle structure, base bearing is composed of two single-row bearings, certain span has been separated with lasso between two single-row bearings, base bearing is located on short main axle structure, 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.The utility model uses short main axle structure using limited space, and main shaft bearing is separated certain span with sleeve, increases the rigidity of bearing bearing, while ring gear is integrated with short main shaft at two, space is saved, under identical weight and size limitation, realizes that power density maximizes.
Description
Technical field
The utility model relates to the technical fields of wind turbine gearbox transmission, refer in particular to a kind of half and directly drive power dividing type
Wind turbine gearbox 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 3MW platform, but entire legacy system axial dimension is very long, gear-box radial dimension and axial direction
Size is also larger.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art and disadvantage, propose a kind of half straight drive power dividing
The wind turbine gearbox drive mechanism of type drives legacy system for high-power compacting half is straight, uses short master using limited space
Main shaft bearing is separated certain span with sleeve, increases the rigidity of bearing bearing by axle construction, while ring gear and short master at two
Axis is integrated, and saves space.Gear-box shunts differential+flexible latch structure using two stage power.It is limited in identical weight and size
Under system, power density can be improved 30% or more, realize that power density maximizes.
To achieve the above object, a kind of technical solution provided by the utility model are as follows: half straight wind for driving power dividing type
Electrical gearbox drive mechanism, including base bearing, hub side primary planet train and generator side primary planet train, wherein institute
The generator side ring gear of the hub side ring gear and generator side primary planet train of stating hub side primary planet train is integrated
Be integrated, constitute short main axle structure, the base bearing is composed of two single-row bearings, and between two single-row bearings with
Lasso separates, and keeps corresponding span, and to increase the rigidity of bearing bearing, the base bearing is located on short main axle structure, bears
The power and bending load that wind wheel passes over, to reduce impact of the alternating load to gear-box, gear-box uses planetary differential function
Rate shunts form, and input power is passed to hub side primary planet train and generator side primary planet from short main axle structure respectively
In the respective Planetary Gear Transmission of train, the generator side planet carrier and base bearing and hair of the generator side primary planet train
Motor housing is fixed together, the generator side sun gear and hub side primary planet wheel of the generator side primary planet train
The hub side planet carrier of system connects, and the hub side sun gear of the hub side primary planet train is connect with generator, the hair
Planetary gear, generator side sun gear of the power of motor side ring gear Jing Guo generator side primary planet train are transmitted to hub side
Planet carrier, using the planetary gear and hub side ring gear power combing of hub side primary planet train, finally too by hub side
Sun wheel is 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 uses short main shaft, and short main shaft integrates ring gear, compact-sized.
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 the half straight wind turbine gearbox drive mechanism schematic diagram for driving power dividing type.
Specific embodiment
The utility model is described in further detail combined with specific embodiments below.
It is shown in Figure 1, the half straight wind turbine gearbox drive mechanism for driving power dividing type provided by the present embodiment, including
Base bearing, hub side primary planet train and generator side primary planet train, wherein the hub side primary planet train
Hub side ring gear 1 and the generator side ring gear 2 of generator side primary planet train become one, and constitute short main shaft knot
Space can be greatly saved in structure in this way, so that transmission ratio is bigger and higher gear-box capacity density, the base bearing is by two
Single-row bearing 3,4 is composed, and has separated certain span between two single-row bearings 3,4 with lasso 5, to increase bearing branch
The rigidity held, the base bearing are located on short main axle structure, bear the load such as power and the moment of flexure that wind wheel passes over, to reduce
Impact of the alternating load to gear-box, gear-box use planetary differential power dividing form, and input power is divided from short main axle structure
It is not passed in the respective Planetary Gear Transmission of hub side primary planet train and generator side primary planet train, the power generation
The generator side planet carrier 6 of pusher side primary planet train is fixed together with base bearing and generator casing 7, the generator side
The generator side sun gear 8 of primary planet train is connect with the hub side planet carrier 9 of hub side primary planet train, the wheel hub
The hub side sun gear 10 of side primary planet train is connect with generator, and the power of the generator side ring gear 2 is by power generation
Planetary gear 11, the generator side sun gear 8 of pusher side primary planet train are transmitted to hub side planet carrier 9, using hub side one
The planetary gear 12 and 1 power combing of hub side ring gear of grade planetary gear train, are finally given power transfer by hub side sun gear 10
Generator, this structure enable the power of wheel hub to shunt, and then reduce gear-box radial dimension, the power density of gear-box
Increase, security reliability improves.
In addition, the planetary gear 11,12 is carried using flexible latch structure, the flexibility latch structure is by flexible pin shaft
13 and guide 14 form, the flexible pin shaft 13 is interference fitted with planet carrier, and the guide 14 is interference fitted with flexible pin shaft 13,
And support planetary bearing and planetary gear.When two tangential forces of ring gear and sun gear are applied on planetary gear, planet is come from
Angle winding degree caused by flexible pin shaft on frame is bent can be caused by opposite direction from the guide bending of the flexible pin shaft other end
Angle winding degree offset, make each planetary gear parallel flotation, and then make 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 half straight wind turbine gearbox drive mechanism for driving power dividing type, it is characterised in that: including base bearing, hub side one
Grade planetary gear train and generator side primary planet train, wherein the hub side ring gear of the hub side primary planet train with
The generator side ring gear of generator side primary planet train becomes one, and constitutes short main axle structure, the base bearing is by two
A single-row bearing is composed, and is separated between two single-row bearings with lasso, and corresponding span is kept, to increase bearing bearing
Rigidity, the base bearing is located on short main axle structure, power and bending load that wind wheel passes over is born, to reduce alternation
Impact of the load to gear-box, gear-box use planetary differential power dividing form, and input power passes respectively from short main axle structure
Enter into the respective Planetary Gear Transmission of hub side primary planet train and generator side primary planet train, the generator side
Generator side planet carrier and the base bearing and generator casing of primary planet train are fixed together, the generator side level-one row
The generator side sun gear of star wheel series is connect with the hub side planet carrier of hub side primary planet train, the hub side level-one row
The hub side sun gear of star wheel series is connect with generator, and the power of the generator side ring gear passes through generator side primary planet
Planetary gear, the generator side sun gear of train are transmitted to hub side planet carrier, using the planet of hub side primary planet train
Wheel with hub side ring gear power combing, finally by hub side sun gear by power transfer to generator.
2. a kind of half straight wind turbine gearbox drive mechanism for driving power dividing type according to claim 1, 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, described soft
Property pin shaft and planet carrier be interference fitted, the guide and flexible pin shaft are interference fitted, and support planetary bearing and planetary gear, when interior
When two tangential forces of gear ring and sun gear are applied on planetary gear, angle caused by the flexible pin shaft on planet carrier is bent
Winding degree can be bent caused angle winding degree from the guide of the flexible pin shaft other end by opposite direction and offset, and make each planetary gear
Parallel flotation, and then make load mean allocation between each planetary gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821938715.1U CN209324950U (en) | 2018-11-22 | 2018-11-22 | A kind of half straight wind turbine gearbox drive mechanism for driving power dividing type |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821938715.1U CN209324950U (en) | 2018-11-22 | 2018-11-22 | A kind of half straight wind turbine gearbox drive mechanism for driving power dividing type |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209324950U true CN209324950U (en) | 2019-08-30 |
Family
ID=67711336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821938715.1U Active CN209324950U (en) | 2018-11-22 | 2018-11-22 | A kind of half straight wind turbine gearbox drive mechanism for driving power dividing type |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209324950U (en) |
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2018
- 2018-11-22 CN CN201821938715.1U patent/CN209324950U/en active Active
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