Connecting method of sectional type blades and a blade shafts of a wind generating set

Abstract

The invention discloses a connecting method of sectional type blades and blade shafts of a wind generating set. The blades are provided with the shafts, and the two ends of the shafts are positioned. According to the method, each blade shaft (connecting cylinder) is divided into two sections, wherein a flange plate is designed at the joint of the two sections, and the two sections are connected through the flange plate. The method comprises the steps that firstly, the blades are segmented, and the blades comprises blade root sections and blade front sections; and the flange plates are designed at the joints of the blade front sections and the blade root sections, the flange plates can be inner flange plates or outer flange plates, and the blade root sections and the blade front sections are fixedly installed through the flange plates. According to the technical scheme, by arranging the connecting cylinders, the blades are connected through anti-flutter connecting assemblies in the connecting cylinders, so that the mounting strength and the mounting rigidity are high, the connection is stable, and the anti-flutter effect is good.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a method for connecting segmental blades and blade shafts of a wind power generator set. Background technique [0002] The wind power generating set includes a wind rotor and a generator; the wind rotor consists of blades, hubs, reinforcements, etc.; the blades are driven by the wind to rotate the wind rotor to generate electricity. [0003] There are following defects or problems in the prior art: [0004] Generally, the blades of wind turbines are made as a whole, and one end is fixed and positioned, so the length of the blades is limited, and there are problems such as difficulty in manufacturing, transportation, hoisting, difficulty in making, and heavy weight. However, some segmented blades in traditional technology are still one end. Fixed positioning, and the connection method is complicated, imprecise, unreliable, heavy, short life, high cost, fracture, lig...

AI Technical Summary

Problems solved by technology

[0004] Generally, the blades of wind turbines are made as a whole, and one end is fixed and positioned, so the length of the blades is limited, and there are problems such as difficulty in manufacturing, transportation, hoisting, difficulty in making, and heavy weight. However, some segmented blades in traditional technology are still one end. Fixed positioning, and the connection method is complex, imprecise, unreliable, heavy, short life, high cost, and it is still unavoidable to break, lightning strike, short life, low efficiency, etc.

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