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One-way clutch for wind power generation device, and wind power generation device

A technology of wind power generation equipment and one-way clutch, which is applied to one-way clutches, wind power motor combinations, wind power generator components, etc., can solve problems such as shortened lifespan, and achieve the effect of improving lifespan

Inactive Publication Date: 2015-11-18
JTEKT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the roller bearing has a problem that the life of the roller bearing is limited due to fretting wear (a phenomenon causing seizure in the surface layer) that occurs on the rolling contact surface of the roller or the raceway surface of the rotating wheel. shorten

Method used

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  • One-way clutch for wind power generation device, and wind power generation device
  • One-way clutch for wind power generation device, and wind power generation device
  • One-way clutch for wind power generation device, and wind power generation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings.

[0042] figure 1 It is a schematic side view of a wind power plant according to an embodiment of the present invention.

[0043] The wind power generation facility 1 includes blades (wind receiving members) 11 , struts 12 and a nacelle 13 . The blade 11 includes a plurality of fins provided at the tip of the main shaft 2 and rotates the main shaft 2 by receiving wind. The nacelle 13 includes a main shaft 2, a support mechanism 15 for supporting the main shaft 2, a speed-increasing gear device 3 for increasing the rotational speed of the main shaft 2, and an electric motor for generating a rotational force whose speed is increased by the speed-increasing gear device 3. The generator 4, the casing 18 for accommodating these components, etc. The strut 12 supports the nacelle 13 around a vertical axis in a horizontally rotatable manner.

[0044] figure 2 ...

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PUM

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Abstract

A one-way clutch, having an inner ring, an outer ring for forming a plurality of wedge-shaped spaces between the outer ring and the inner ring, and a plurality of rollers disposed in the wedge-shaped spaces. The rollers engage with the outer peripheral surface of the inner ring and the inner peripheral surface of the outer ring, whereby the output shaft of a speed-up gear and the input shaft of a generator are connected so as to enable integral rotation. Releasing the engagement cuts the connection. When θa represents the wedge angle of the wedge-shaped spaces when a load torque at the initial stage of the roller engagement is applied and θb represents the wedge angle when the maximum load torque is applied, the relationship 1.1 < θb / θa < 1.4 is satisfied.

Description

technical field [0001] One aspect of the present invention relates to a one-way clutch that can be suitably used, for example, between an output shaft of a step-up gear unit and an input shaft of a generator in a wind power plant, and a wind power plant. Background technique [0002] In the wind power generation apparatus according to the background art of the present application, blades receive wind force to rotate a main shaft connected to the blades, and the generator is driven by increasing the rotation speed of the main shaft by a step-up gear. [0003] In the speed-up gear unit of the wind power generation equipment, a roller bearing that rotatably supports an output shaft rotating at high speed is provided. However, the roller bearing has a problem that the life of the roller bearing is limited due to fretting wear (a phenomenon causing seizure in the surface layer) that occurs on the rolling contact surface of the roller or the raceway surface of the rotating wheel. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D41/06F03D11/02
CPCF03D11/02F05B2260/4023F05B2260/40311F16D41/06F16D41/067F16D2041/0608F16D2300/06Y02E10/722F03D15/00F03D9/25Y02E10/72F03D15/10F03D80/70F16D41/064
Inventor 藤原英树大塚和茂
Owner JTEKT CORP