CN205715578U - A kind of wind turbine gearbox flexible shaft - Google Patents
A kind of wind turbine gearbox flexible shaft Download PDFInfo
- Publication number
- CN205715578U CN205715578U CN201620602123.7U CN201620602123U CN205715578U CN 205715578 U CN205715578 U CN 205715578U CN 201620602123 U CN201620602123 U CN 201620602123U CN 205715578 U CN205715578 U CN 205715578U
- Authority
- CN
- China
- Prior art keywords
- wheel shaft
- wind turbine
- mandrel
- conical ring
- turbine gearbox
- 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
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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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model proposes a kind of wind turbine gearbox flexible shaft, including wheel shaft and mandrel, wheel shaft is provided with center installation cavity, and a mandrel penetrates wheel shaft from center, and the external part in mandrel is set with conical ring, the taper-face contact of the conical surface of conical ring and axle ends relative set；The external part of mandrel is used for connecting carrier, and after installation, conical ring is positioned between carrier and wheel shaft.According to installation site in wind turbine gearbox for the flexible pin shaft and effect, by being provided with conical ring between carrier and the end face of wheel shaft so that it is form the supporting construction of approximation floating jib formula, reach more preferably to absorb load, Reducing distortion amount, it is achieved the purpose all carrying.Utilizing the wind turbine gearbox that this flexible pin shaft is made, can effectively improving service life and the operating efficiency of fan transmission system, the manufacturing capacity for promoting Chinese large-sized blower fan equipment industry provides powerful guarantee.
Description
Technical field
The utility model design wind-driven generator manufactures technical field, particularly relates to a kind of for large-scale wind driven generator master
Flexible shaft on uni-drive gear box.
Background technology
Main transmission gearbox is wind power generating set important component part, is whole fan transmission system power matching and torsion
The dynamic reflection protruding parts of rotational oscillation.Particularity due to blower fan apparatus, it is desirable to gear-box is in complex work such as the slow-speed of revolution, change moments of torsion
Having longer working life and high reliability under environment, therefore there is bigger difficulty in design in it on manufacturing.
In recent years, developing rapidly with wind-power electricity generation project, it is to bigger wind sweeping area, bigger mesh power gear-box
Demand more and more urgent, but use the planetary system of planetary gear rigid support, and floating solar wheel or planet carrier carried out all
Carry and increasingly can not meet actual demand, one the most development trend of balancing load of planetary gear by flexible pin shaft technology, can be preferably
Meet this demand.
The equal carrier technology of application flexibility bearing pin is high-power at present and a weight of super high power wind turbine gear transmission device
Want development trend.Flexible pin shaft is set up in double cantilevered axle theoretical foundations, is expanded by single wall planet carrier.Assuming planet carrier
Under conditions of perfect rigidity, make planetary gear produce translational motion after the deformation of bearing pin stand under load, on the one hand play all load effects, the opposing party
Face can ensure that each Gear axis is parallel, improves unit facewidth bearing capacity, overcomes sit-astride planet carrier due to torsional deflection
The Gear axis skew problem causing.In addition, complicated and changeable due to wind field load, blower fan driving-chain is hit load for a long time
The effect of lotus.If system rigidity is excessive, the mechanical drive train of wind-driven generator is due to by moment impact load, it may be necessary to hold
Impacted by several times of rated loads.And flexible shaft structure adds the flexibility of system, thus instantaneous load can be avoided to being excessive
The impact of system, increases the ability of the load that withstands shocks of system, is conducive to improving the service life of whole driving-chain structural member.Thing
In reality, this conception just occurred as far back as 1967, and Hicks illustrates a kind of patent of invention, with a kind of telescopic pair of cantilever
Bearing pin is as the planet carrier of a kind of type of cantilever, and proposes all loads feelings that this patented technology can be improved between planetary gear
Condition, but Hicks does not carry out learned correlation analysis to this patent, this method is only used as a kind of technology and attempts answering
It is used in industrial technology, owing to lacking theoretical research and level of processing restriction at that time, do not show its superior function.2006
Year, Fox and Jallat extends the imagination of Hicks, and they cut out a groove on flexible pin shaft, reduce bearing pin further
Support stiffness, but with increase bearing pin bending stress as cost；But due in geometry and principle in follow-up Optimization Work
Appropriate design, makes the moment of flexure acting on bearing pin center be zero, and therefore this cantilevered bearing pin can be used in minimizing flexible support
The planet carrier of type.It is to be noted that in the planet carrier of this type of cantilever, owing to helical teeth planetary gear transmits moment of torsion
When produce axial direction motion, so improper employing helical teeth planetary gear.
It is difficult to meet big rigidity requirement at physical condition lower cantalever pin type planet carrier, and planetary gear mounting structure is originally own
Very compact, the structure of flexible pin shaft is more complicated again, there are more restraining factors in design, inevitable strong to sacrifice certain fatigue
Degree and reliability are cost.In addition, current domestic high-power wind turbine gear-box autonomous innovation research and development ability is weak, lacks and independently know
Know the core technology of property right；Domestic wind turbine gearbox manufacturing enterprise rely primarily on introduction of foreign technology or with overseas enterprise and state
Outer specialty wind turbine gearbox design organization carries out co-design to develop new product, exchanges technology and overseas city for cost advantage
?.Therefore, the domestic employing equal carrier technology of compliant pin is developed greater power wind turbine gearbox and be there is also two unfavorable conditions, and one is soft
Property bearing pin can be only applied on Spur Gear Driving, limits the raising further of transmission performance；Two is to lack flexible pin shaft technology
Weary corresponding research, causes domestic wind turbine gearbox manufacturing enterprise to bear the technology transfer expense of great number to external advanced enterprises.
To this end, the equal carrier technology of high-power wind turbine gear-box compliant pin shaft type of national development oneself is day by day urgent.
Content of the invention
For overcoming prior art defect, improve service life and the efficiency of wind turbine gearbox, the utility model proposes one
For the flexible shaft on large-scale wind driven generator main transmission gearbox.
To this end, the technical solution of the utility model is: a kind of wind turbine gearbox flexible shaft, including wheel shaft, it is characterised in that:
Wheel shaft is provided with center installation cavity, and a mandrel penetrates wheel shaft from center, and the external part in mandrel is set with conical ring, the cone of conical ring
Face and the taper-face contact of axle ends relative set；The external part of mandrel is used for connecting carrier, after installation, conical ring be positioned at carrier with
Between wheel shaft.
Beneficial effect:
The utility model is according to installation site in wind turbine gearbox for the flexible shaft and effect, by carrier and wheel shaft
It is provided with conical ring so that it is form the supporting construction of approximation floating jib formula, reach more preferably to absorb load, Reducing distortion between end face
Amount, it is achieved the purpose all carrying；Utilize the wind turbine gearbox that this flexible shaft is made, the use of fan transmission system can be effectively improved
Life-span and operating efficiency, the manufacturing capacity for promoting Chinese large-sized blower fan equipment industry provides powerful guarantee.
Brief description
Fig. 1 is structural representation of the present utility model；
Fig. 2 is stressing conditions schematic diagram of the present utility model；
Fig. 3 is deformation schematic diagram of the present utility model；
Figure is numbered: the 1st, wheel shaft；2nd, mandrel；3rd, carrier；4th, conical ring.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As it is shown in figure 1, a kind of wind turbine gearbox flexible shaft, including wheel shaft 1 and mandrel 2, during assembling, mandrel 2 is passed through from center
Through wheel shaft 1；External part in mandrel 2 is set with conical ring 4, by the conical surface of conical ring 4 to the end face of wheel shaft 1, the conical surface of conical ring 4 with
The taper-face contact of wheel shaft 1 end relative set, during use, the external part of mandrel 2 is used for connecting carrier 3, so that wheel shaft 1 and load
Body 3 connects.
As it is shown in figure 1, the taper seat that the conical surface of conical ring is 45-90.Optimized, the conical surface of conical ring is the circle of 60-90
The conical surface.
As shown in Figure 2 and Figure 3, operation principle of the present utility model is described: when planetary gear stand under load, due to planet gear transmission system
Gear be straight-tooth, planetary gear support shaft stress can be equivalent to facewidth center stressed f=2T/ND on planetary gear axle, its
Middle T, N and D are respectively the total torque, planetary gear number, planetary gear pitch diameter that planet carrier passes over；To planetary gear
For axle, keep balance at external load and mandrel under the common effect to its reaction force and moment of torsion；For center roller, its with
Carrier connects moment M 1=f * l/2, M2=f * (l/2*l/2) the * M1 of end, and therefore M1=M2, i.e. mandrel make under power effect
The moment of flexure of its central point is zero, is i.e. considered as two cantilever beams with spindle center as fixed pivot, and mandrel occurs " S " shape to become
Shape, mandrel two ends gradient under the coupling with moment of flexure for the power is also zero, it means that planetary gear axle does not tilt.This
When feature also ensures that any dislocation of generation makes to produce moment of torsion on planetary gear, power can be adjusted to the center of the facewidth by moment of torsion, thus
Make planetary gear holding level under stand under load duty.
The utility model is according to installation site in wind turbine gearbox for the flexible shaft and effect, by carrier and wheel shaft
It is provided with conical ring so that it is form the supporting construction of approximation floating jib formula, reach more preferably to absorb load, Reducing distortion between end face
Amount, it is achieved the purpose all carrying.Utilize the wind turbine gearbox that this flexible shaft is made, the use of fan transmission system can be effectively improved
Life-span and operating efficiency, the manufacturing capacity for promoting Chinese large-sized blower fan equipment industry provides powerful guarantee.
The foregoing is only preferable possible embodiments of the present utility model, and be not used to limit to patent model of the present utility model
Enclose, therefore all utilization equivalent transformations of being made of the utility model description, be all in like manner included in scope of the present utility model it
In.
Claims (2)
1. a wind turbine gearbox flexible shaft, including wheel shaft, it is characterised in that: wheel shaft is provided with center installation cavity, mandrel from
Center penetrates wheel shaft, and the external part in mandrel is set with conical ring, and the conical surface of conical ring connects with the conical surface of axle ends relative set
Touch；The external part of mandrel is used for connecting carrier, and after installation, conical ring is positioned between carrier and wheel shaft.
2. a kind of wind turbine gearbox flexible shaft according to claim 1, it is characterised in that: the conical surface of conical ring is 45-90's
Taper seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620602123.7U CN205715578U (en) | 2016-06-20 | 2016-06-20 | A kind of wind turbine gearbox flexible shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620602123.7U CN205715578U (en) | 2016-06-20 | 2016-06-20 | A kind of wind turbine gearbox flexible shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715578U true CN205715578U (en) | 2016-11-23 |
Family
ID=57306229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620602123.7U Expired - Fee Related CN205715578U (en) | 2016-06-20 | 2016-06-20 | A kind of wind turbine gearbox flexible shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715578U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944932A (en) * | 2019-03-20 | 2019-06-28 | 中国航发湖南动力机械研究所 | Axis links system and planet gear transmission system |
| CN113236504A (en) * | 2021-05-28 | 2021-08-10 | 远景能源有限公司 | Gear box of wind driven generator |
| US11370537B2 (en) * | 2019-10-23 | 2022-06-28 | Textron Innovations Inc. | Integral flexured carriers for aircraft planetary gear systems |
-
2016
- 2016-06-20 CN CN201620602123.7U patent/CN205715578U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944932A (en) * | 2019-03-20 | 2019-06-28 | 中国航发湖南动力机械研究所 | Axis links system and planet gear transmission system |
| US11370537B2 (en) * | 2019-10-23 | 2022-06-28 | Textron Innovations Inc. | Integral flexured carriers for aircraft planetary gear systems |
| CN113236504A (en) * | 2021-05-28 | 2021-08-10 | 远景能源有限公司 | Gear box of wind driven generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20210620 |