Flexible blade root baffle plate structure of wind power blade

Abstract

The invention provides a flexible blade root baffle plate structure of a wind power blade, which is composed of a baffle plate formed by combining a perforated paving layer and a perforated core material and a cover plate formed by an annular core material and a circular paving layer, wherein the baffle plate and the cover plate are connected through a limiting block, the perforated paving layer is divided into a first perforated paving layer and a second perforated paving layer; the first perforated laying layer is annular, the second perforated laying layer comprises a spoke-shaped paving layer and an annular paving layer, the spoke-shaped paving layer comprises a spoke area and a wheel ring area, the size of the annular paving layer is consistent with that of the wheel ring area, and the radius of the perforated core material is smaller than that of the annular paving layer, so that the rigidity is reduced, bending deformation caused by a blade root can be adapted, and the service life of the blade is prolonged. The baffle plate can be tailored and can be applied to different axial positions of the same type of blades and various types of different blades; the cover plate adopts non-contact flexible connection, so that fatigue damages at the joint and fatigue fracture of a bolt are avoided; and the resin is correspondingly reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of wind power blades, in particular to a flexible blade root baffle structure of a wind power blade. Background technique [0002] With the development of offshore wind power, in order to obtain higher power generation efficiency, the blades are designed to be larger and longer, accompanied by greater deformation. Since people will enter the interior of the blade during maintenance or construction of the blade, the design of the blade root baffle needs to play the role of support and sealing, and at the same time adapt to the deformation of the blade. Greater deformation at the blade root means cracking of the baffle, water leakage in the engine room, and even threatens the safety of maintenance personnel. [0003] In order to solve this problem, the existing baffle is designed to open a hole in the baffle and seal it through the cover plate. However, the existing baffle design usually adopts a sandwich sa...

AI Technical Summary

Problems solved by technology

However, the existing baffle design usually adopts a sandwich sandwich structure formed by laying cloth layers and vacuum infusion of core materials. The outer side cannot be cut, otherwise the side core material is exposed, so it is only used for one type of blade. If the customer is different, the same type of blade is not suitable for different axial positions, etc.

Images