CN204477248U - Wind turbine gearbox main shaft connects position structure - Google Patents
Wind turbine gearbox main shaft connects position structure Download PDFInfo
- Publication number
- CN204477248U CN204477248U CN201420836422.8U CN201420836422U CN204477248U CN 204477248 U CN204477248 U CN 204477248U CN 201420836422 U CN201420836422 U CN 201420836422U CN 204477248 U CN204477248 U CN 204477248U
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- CN
- China
- Prior art keywords
- main shaft
- planet carrier
- distance ring
- mesopore
- wind turbine
- 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.)
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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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- Wind Motors (AREA)
Abstract
The utility model provides a kind of wind turbine gearbox main shaft and connects position structure, comprising: main shaft, planet carrier and distance ring; Described planet carrier is provided with stepped shaft endoporus, comprises 3 endoporus that diameter from one end reduces successively: macropore, mesopore and aperture; Described main shaft coordinates with macropore; Described distance ring coordinates with mesopore; The axle head of described main shaft and distance ring axially locating; Described distance ring is away from one end of axle head and the step axially locating between mesopore and aperture.Described distance ring is provided with in the aperture of described planet carrier ladder-type endoporus, thus the distance extended between described main-axis end and described step, when making stressed, planet carrier obviously reduces with the stress of the main shaft section of cooperation, effectively reduces planet carrier and main shaft connection place stress excessive and the fracture that causes or fatigue damage.The utility model avoids and adopts multidiameter shaft shape or the higher planet carrier material of intensity, can effectively reduce costs.
Description
Technical field:
The utility model relates to wind turbine gearbox field, particularly relates to a kind of wind turbine gearbox main shaft and connects position structure.
Background technique:
High-power wind turbine gear-box load is large, life requirements 20 years, and gearbox planetary frame and main shaft connection place often occur that stress is excessive, even exceed the situation of Materials Yield Limit, causes connection place that fracture or fatigue damage occur thus.The solution often adopted at present is the planet carrier material that multidiameter shaft form or selection intensity are higher by spindle design, but cost can be made so significantly to increase.
Summary of the invention:
The purpose of this utility model is to provide a kind of wind turbine gearbox main shaft and connects position structure, while significantly reducing costs, can effectively avoid main shaft connection place stress excessive and the fracture that causes or fatigue damage.
The technical solution of the utility model is as follows:
Described wind turbine gearbox main shaft connects position structure and comprises: main shaft, planet carrier and distance ring; Described planet carrier is provided with stepped shaft endoporus, comprises 3 endoporus that diameter from one end reduces successively: macropore, mesopore and aperture; Described main shaft coordinates with macropore; Described distance ring coordinates with mesopore; The axle head of described main shaft and described distance ring axially locating; Described distance ring is away from one end of axle head and the step axially locating between mesopore and aperture.
Preferably, described main shaft and macropore adopt Spielpassung.Described distance ring is annular, adopts transition fit with described mesopore.
Wind turbine gearbox main shaft described in the utility model connects position structure and be provided with described distance ring in the mesopore of described planet carrier ladder-type endoporus, distance ring two ends respectively with described main shaft and described step axially locating, thus the distance extended between described main-axis end and described step, when making stressed, planet carrier obviously reduces with the stress of the main shaft section of cooperation, effectively reduces described planet carrier and main shaft connection place stress excessive and the fracture that causes or fatigue damage.In addition, the utility model, without the need to adopting multidiameter shaft shape or the higher planet carrier material of intensity, can effectively reduce costs.
Accompanying drawing illustrates:
Fig. 1 is the cross-sectional schematic that the utility model wind turbine gearbox main shaft connects position structure.
Embodiment:
Embodiment 1
Below in conjunction with accompanying drawing, the utility model is specifically described.Described wind turbine gearbox main shaft connects position structure and comprises: main shaft 1, planet carrier 2 and distance ring 3; Described planet carrier 2 is provided with stepped shaft endoporus, comprises 3 endoporus that diameter from one end reduces successively: macropore 4, mesopore 5 and aperture 6; Described main shaft 1 adopts Spielpassung with macropore 4; Described distance ring 3 adopts interference fit with mesopore 5; Axle head 8 and distance ring 3 axially locating of described main shaft 1; Described distance ring 3 is away from one end of axle head 8 and step 7 axially locating between mesopore 5 and aperture 6.
Embodiment 2
It is substantially the same manner as Example 1 that wind turbine gearbox main shaft described in embodiment 2 connects position structure, only changes described distance ring 3 into Spielpassung with the fit system of mesopore 5.
Wind turbine gearbox main shaft described in embodiment 1,2 connects position structure and be provided with described distance ring 3 in the mesopore 5 of described planet carrier 2 ladder-type endoporus, distance ring 3 two ends respectively with described main shaft 1 and described step 7 axially locating, thus the distance extended between the axle head 8 of described main shaft 1 and described step 7, when making stressed, planet carrier 2 obviously reduces with the stress of main shaft 1 section of cooperation, effectively reduces described planet carrier 2 and the fracture that cause or fatigue damage excessive with main shaft 1 connection place stress.In addition, the utility model, without the need to adopting multidiameter shaft shape or the higher planet carrier material of intensity, can effectively reduce costs.
Above-mentioned embodiment is only for illustration of the utility model; wherein the structure of each parts and connection to arrange etc. and can change to some extent; every equivalents of carrying out on the basis of technical solution of the present invention and improvement, all should not get rid of outside protection scope of the present invention.
Claims (3)
1. wind turbine gearbox main shaft connects a position structure, it is characterized in that comprising: main shaft (1), planet carrier (2) and distance ring (3); Described planet carrier (2) is provided with stepped shaft endoporus, comprises 3 endoporus that diameter from one end reduces successively: macropore (4), mesopore (5) and aperture (6); Described main shaft (1) coordinates with macropore (4); Described distance ring (3) coordinates with mesopore (5); Axle head (8) and distance ring (3) axially locating of described main shaft (1); Described distance ring (3) is away from one end of axle head (8) and step (7) axially locating between mesopore (5) and aperture (6).
2. wind turbine gearbox main shaft according to claim 1 connects position structure, it is characterized in that: described main shaft (1) and macropore (4) adopt Spielpassung.
3. wind turbine gearbox main shaft according to claim 1 connects position structure, it is characterized in that: described distance ring (3) and mesopore (5) adopt transition fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420836422.8U CN204477248U (en) | 2014-12-25 | 2014-12-25 | Wind turbine gearbox main shaft connects position structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420836422.8U CN204477248U (en) | 2014-12-25 | 2014-12-25 | Wind turbine gearbox main shaft connects position structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204477248U true CN204477248U (en) | 2015-07-15 |
Family
ID=53633040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420836422.8U Active CN204477248U (en) | 2014-12-25 | 2014-12-25 | Wind turbine gearbox main shaft connects position structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204477248U (en) |
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2014
- 2014-12-25 CN CN201420836422.8U patent/CN204477248U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |