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Epicyclic gear stage for a wind turbine gearbox, a wind turbine gearbox and a wind turbine

A planetary gear and gear stage technology, applied in the field of wind turbine gearboxes, can solve problems such as inapplicability of single helical gears, and achieve the effects of reducing gear misalignment, facilitating assembly, and increasing sturdiness

Inactive Publication Date: 2010-12-01
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The problem with the FlexPin design is that it doesn't work with single helical gears

Method used

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  • Epicyclic gear stage for a wind turbine gearbox, a wind turbine gearbox and a wind turbine
  • Epicyclic gear stage for a wind turbine gearbox, a wind turbine gearbox and a wind turbine
  • Epicyclic gear stage for a wind turbine gearbox, a wind turbine gearbox and a wind turbine

Examples

Experimental program
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Embodiment Construction

[0081] Figure 6a Schematically showing a part of a cross-sectional view of a planetary gearbox comprising ball joints according to an embodiment of the invention.

[0082] The illustrated embodiment shows the planet gears 12 supported by planet gear bearings 17 , planet gear shafts 16 .

[0083] Figure 6a Some of the contour lines depicted are omitted in the following figures.

[0084] The implementation of the planetary gearbox of the present invention ensures that the load distribution from the wind turbine rotor to the gears is optimized due to the flexible connection of the torque transfer zones described in connection with the following figures, rather than the meshing between the individual gears. Flexible connections are also sometimes called ball joints.

[0085] Figure 6b An enlarged view of a part of the gearbox is shown schematically, wherein the planet gear shaft 16 is supported between two planet carrier flanges 21 , 22 . Torque from the rotor is transferr...

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Abstract

The invention relates to an epicyclic gear stage for a wind turbine gearbox comprising a sun gear, at least two planet gears, engaged with said sun gear, an annulus gear, and a planet carrier. Torque from the wind turbine rotor is transferred via a torque transfer part connected to said planet carrier and said torque transfer part is flexiblely connected to said planet carrier at one or more joints.

Description

technical field [0001] The invention relates to a planetary gear stage according to the preamble of claim 1 and a wind turbine gearbox according to the preamble of claim 14 . Background technique [0002] One type of gear often used in traditional industrial gearboxes is a planetary gear. [0003] The different variants of this gear have a planet carrier with flanges on one or both sides. In the double-sided case, the flanges are connected by struts. For some embodiments the input or drive end (DE) connection shaft is connected to either flange and the entire arrangement is typically supported relative to the fixed frame by bearings on either flange. [0004] The planetary bearings can either be mounted on the shaft supported in the two flanges, or the bearings can be integrated in the flanges. The design is capable of transmitting high torque and supports spur or helical gears. [0005] For a planet carrier design comprising flanges on both sides as well as double helic...

Claims

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Application Information

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IPC IPC(8): F03D11/02F16H1/28
CPCF05B2260/40311F16H57/082F16C11/06Y02E10/722F16H1/2827F03D11/02F03D15/00F16C2360/31F16C2361/61Y02E10/72F03D80/70F03D15/10F03D9/25
Inventor A·莫斯塔菲
Owner VESTAS WIND SYST AS
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