Yaw reduction device used in yaw drive system of wind power generating device and yaw drive system
A technology for wind power generation equipment and deceleration devices, which is applied in the directions of wind turbines, control of wind turbines, wind energy power generation, etc., can solve the problems of enlarging the size of the yaw deceleration device, etc., and achieve the effect of not being damaged.
Active Publication Date: 2015-07-08
SUMITOMO HEAVY IND LTD
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Problems solved by technology
In particular, since it is a device aimed at nature, there is no clear indicator of how large it can be increased without being destroyed, so there is a limit to the size of the yaw reduction device at will.
Method used
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[0038] Hereinafter, the configuration of a yaw drive system of a wind power generation facility according to an example of an embodiment of the present invention, particularly a yaw deceleration device therein, will be described in detail with reference to the drawings.
[0039] refer to Figure 3 ~ Figure 5, this wind power generation facility 10 is equipped with a nacelle (power generation room) 12 on the uppermost portion of a cylindrical support (main body of the wind power generation facility) 11 . A yaw (Yaw) drive system 14 and a pitch (Pitch) drive system 16 are installed in the nacelle 12 . The yaw drive system 14 is a device used to control the rotation angle of the nacelle 12 as a whole relative to the cylindrical pillar 11, and the pitch drive system 16 is used to control the pitch angle of the three windmill blades 20 installed on the nose cone 18. device.
[0040] The yaw drive system 14 includes four yaw reduction devices G1 to G4 with a motor 22 and an output...
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PROBLEM TO BE SOLVED: To obtain a yaw reduction gear used in a yaw drive system in wind power generation equipment which is further hardly damaged (even in a size similar with a conventional one), and the yaw drive system. SOLUTION: The yaw reduction gear G1 (-G4) is used in the yaw drive system 14 of the wind power generation equipment 10 in which output pinions 24 of a plurality of yaw reduction gears G1 (-G4) are meshed with a traversing gear 28 of a body side of the wind power generation equipment 10 to drive and rotate a nacelle 12, and includes a hollow shaft 66 incorporated into a power transmission system, and a shaft member (connection shaft 70) inserted into the hollow shaft 66, connected with the hollow shaft 66 at the inner circumference of the hollow shaft 66, and connected with the other member at a position protruded from the hollow shaft 66, and the shaft member (connection shaft 70) is connected with the hollow shaft 66 at a position closer to an opposite side to a side where the shaft member (connection shaft 70) is protruded from the hollow shaft 66 than an axial center of the hollow shaft 66. COPYRIGHT: (C)2013,JPO&INPIT
Description
technical field [0001] The invention relates to a yaw deceleration device and a yaw drive system used in a yaw drive system of wind power generating equipment. Background technique [0002] Patent Document 1 discloses a yaw drive system for turning a nacelle of a wind power generator within a horizontal plane. [0003] In the yaw drive system of Patent Document 1, one rotary gear is provided on the main body (cylindrical support) side of the wind power generation equipment, and multiple (two in the disclosed example) equipped with braking mechanisms are installed on the nacelle side. And the electric motor of the yaw reduction device. The output pinion of each yaw reduction device meshes with the rotary gear at the same time, and the nacelle (equipped with the motor) is rotated by the reaction received from the rotary gear side when the output pinion meshes with the rotary gear. [0004] By turning the entire nacelle relative to the cylindrical support, the front end of th...
Claims
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Login to View More IPC IPC(8): F16H1/28F03D7/04
CPCY02E10/723Y02E10/722Y02E10/721Y02E10/72
Inventor 峯岸清次吹原胜司
Owner SUMITOMO HEAVY IND LTD