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Wind power generation device

A technology for wind power generation devices and generators, which is applied to wind power generator components, wind power generation, wind power engines, etc., and can solve problems such as difficult and reliable recycling of oil and grease

Inactive Publication Date: 2012-10-24
MITSUBISHI HEAVY IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the above-mentioned existing wind power generation device, the lubricating oil used for lubricating the blade rotating wheel bearing is supplied by the automatic grease supply device, but for the deteriorated lubricating oil (draining grease) after use, it is only rotated from the blade. The wheel bearings are extruded and recycled into the storage tank inside the swivel head
That is, the existing wind power generators are equipped with a pump of an automatic grease supply device for lubricating oil supply, but there is no special mechanism for forcibly recovering the drained grease to the storage tank, so it is difficult to reliably recover all the drained grease.

Method used

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Embodiment Construction

[0026] Hereinafter, an embodiment of the wind power generator according to the present invention will be described with reference to the drawings.

[0027] image 3 The shown wind power generation device 1 has: a windmill tower (hereinafter referred to as "tower") 2 erected on a foundation B; And the rotating head 4 is provided on the front end side of the nacelle 3 .

[0028] The rotor head 4 is mounted with a plurality of (for example three) windmill blades 5 radially around its axis of rotation. Thereby, the wind force blowing down the wind turbine blade 5 from the direction of the rotation axis of the rotor head 4 is converted into power to rotate the rotor head 4 around the rotation axis.

[0029] An anemometer for measuring a peripheral wind speed value, an anemometer for measuring a wind direction, and the like are installed at appropriate locations (for example, an upper portion) on the outer peripheral surface of the nacelle 3 .

[0030] That is, in the wind power ...

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Abstract

Provided is a wind power generation device (1) which enables drain oil to be reliably collected by improving oil supply and drain systems for lubricating oil used in a blade slewing ring bearing (10) of a windmill blade (5). The wind power generation device (1) is provided with a pitch control mechanism which enables the pitch angle of the windmill blade (5) to be adjusted via the blade slewing ring bearing (10) installed between the windmill blade (5) and a rotor head (4), wherein an oil supply / drain oil device (20) is provided in the rotor head (4), and the oil supply / drain oil device (20) is provided with an oil supply unit (30) for pumping and supplying the lubricating oil in an oil supply tank (31) to the blade slewing ring bearing (10) by an oil supply pump (32), and a drain oil unit (40) for collecting the drain oil by forcibly sucking the drain oil from the blade slewing ring bearing (10).

Description

technical field [0001] The present invention relates to a wind power generator equipped with an inclination control device for changing the inclination angle of a windmill blade, and particularly relates to an improved lubricating oil supply and grease discharge system (structure) used in the blade turning wheel bearing of the windmill blade Wind power plant. Background technique [0002] A wind power generator is a device that rotates a rotating body head equipped with wind turbine blades by receiving wind force, and generates power by a generator that drives the rotation by a speed increaser or the like. [0003] The above-mentioned swivel head is installed on a windmill tower (hereinafter referred to as "tower"), is attached to a pivotable nacelle end, and is supported so as to be rotatable about a substantially horizontal lateral rotation axis. [0004] A typical wind power generator includes an inclination control device that changes the inclination angle of the wind t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00F03D7/04F03D80/00F03D80/70
CPCY02E10/723Y02E10/722F05B2260/602F05B2260/79F05B2260/98F03D7/0224F03D11/0008F03D80/70F16C2360/31Y02E10/72
Inventor 沼尻智裕藤冈义弘今长敦史
Owner MITSUBISHI HEAVY IND LTD
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