Wind turbine generator set impeller turning device and turning method

A technology for wind turbines and turning devices, which is applied in the assembly of wind engines, wind power generation, etc., and can solve problems such as the difficulty in turning blades of direct-drive wind turbines, so as to improve cranking efficiency, reduce costs, and have a simple structure Effect
CN105673349AActive Publication Date: 2016-06-15BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP
Publication Date
2016-06-15

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Abstract

The invention provides a wind turbine generator set impeller turning device and turning method. A wind turbine generator set comprises an electric generator, a tower drum, a machine room, a yawing mechanism and a rotor. The machine room is arranged on the tower drum and can rotate around the axis direction of the tower drum. The yawing mechanism is connected between the machine room and the tower drum. The rotor is connected to the machine room and can rotate around the axis direction of the electric generator. The wind turbine generator set impeller turning device comprises a pulling part. The first end of the pulling part is connected to a fixed platform. The second end of the pulling part is detachably connected with the rotor. When the machine room is driven by the yawing mechanism to rotate, the pulling part makes the rotor rotate. According to the wind turbine generator set impeller turning device, an additional power source is not needed, so that the structure is simple, the turning efficiency is improved, and the turning cost is reduced.
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Description

technical field

[0001] The invention relates to the field of auxiliary equipment for wind power generating sets, in particular to a turning device and a turning method for an impeller of a wind power generating set. Background technique

[0002] At present, in order to improve the installation efficiency, the installation of wind turbines generally adopts the method of installing each blade separately, which is often called single-blade installation. crank. The specific method of separate installation is to install one blade, drive the hub to rotate 120 degrees through the turning device, install the second blade, and finally install the third blade after turning the hub to rotate 120 degrees. Due to the speed-up and torque-reducing effect of the gear box in the wind turbine with a gear box (generally, the speed-up ratio of the gear box is about 90-120), it only needs to apply a small torque at the output end of the high-speed shaft of the gear box. The drive hub rotates. ...

Claims

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