Fan blade connecting method, fan impeller and wind turbine generator set
A technology for a wind turbine and a connection method, which is applied to wind turbine components, wind turbine combinations, wind turbines, etc., can solve the problems of increasing the difficulty and cost of blade design, increasing the production time and production cost of wind turbines, and achieving high Applicability, speed up assembly schedule, cost reduction effect
Active Publication Date: 2013-07-03
XINJIANG GOLDWIND SCI & TECH
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Problems solved by technology
[0003] However, since the fan blades are required to be used together with the pitch bearing and the hub in this impeller structure, different blades need to be equipped with different pitch bearings and hubs, which increases the production time and cost of the wind power generator set
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[0027] In order to enable those skilled in the art to better understand the technical solution of the present invention, the method for connecting fan blades, fan impellers and wind power generators provided by the present invention will be described in detail below with reference to the accompanying drawings.
[0028] The fan blade connection method provided by the present invention is mainly used for connecting fan blades and pitch bearings that do not match each other, that is, the root diameter of the fan blade is larger than the outer ring diameter of the pitch bearing or smaller than the inner ring diameter of the pitch bearing , the two cannot be directly connected together through traditional methods. The core idea of the fan blade connection method provided by the present invention is to use an adapter assembly to connect the fan blade and the pitch bearing. One end of the adapter assembly can be matched with the blade and the other end can be matched with the pitch ...
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The invention provides a fan blade connecting method which is used for connecting a blade and a pitch variable bearing, wherein a switching-over component is arranged between the blade and the pitch variable bearing, one end of the switching-over component is matched with the blade, the other end of the switching-over component is connected with the pitch variable bearing in a matched manner. The invention further provides a fan impeller which comprises the blade, the pitch variable bearing, a hub, and the switching-over component arranged between the blade and the pitch variable bearing, the pitch variable bearing is arranged on the hub, one end of the switching-over component is connected with the blade in a matched manner, the other end of the switching-over component is connected with the pitch variable bearing in a matched manner. The invention further provides the wind turbine generator set adopting the fan blade connecting method or the fan impeller. The fan blade connecting method or the fan impeller, provided by the invention, can enable the same hub and the pitch variable bearing to adapt to blades with different sizes and structures. Therefore, the fact that different pitch variable bearings and hubs require different blades can be avoided, and the cost is lowered.
Description
technical field [0001] The invention relates to wind power generation technology, in particular to a fan blade connection method, a fan impeller, a wind power generating set using the method, and a wind generating set with the fan impeller. Background technique [0002] A wind turbine is a large-scale power generation device that converts wind energy into electrical energy through the rotation of the impeller. Among them, the impeller is composed of blades, pitch bearings, pitch drive devices, and hubs. The blades are connected to the inner or outer rings of the pitch bearings, the pitch bearings are connected to the hub, and the pitch drive on the bearing. When the pitch is changed, the pitch drive device drives the inner or outer ring of the pitch bearing to rotate, thereby driving the blades to rotate. [0003] However, since the fan blades are required to be used together with the pitch bearing and the hub in this impeller structure, different blades need to be equippe...
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IPC IPC(8): F03D9/00F03D11/04F03D11/00
CPCY02E10/72
Inventor 李会勋
Owner XINJIANG GOLDWIND SCI & TECH