A kind of z-pin reinforced composite wind power blade structure and manufacturing method thereof

A technology for reinforcing composite materials and wind turbine blades, applied in the field of composite material reinforcement, can solve the problems of insufficient performance of the blade shell, weak bearing capacity of open thin-walled beams, poor connection interface performance, etc., and achieve strong designability and easy integration Strong molding and anti-peeling properties
CN104847595BActive Publication Date: 2017-11-03NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
10 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Publication Date
2017-11-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a Z-pin reinforced composite material wind power blade structure. The Z-pin reinforced composite material wind power blade structure comprises an upper half blade shell, a lower half blade shell and a main beam, wherein the upper half blade shell and the lower half blade shell are matched to form a blade cavity, the upper edge of the main beam and the inner wall of the upper half blade shell are tightly attached to form an upper connecting surface, the lower edge of the main beam and the inner wall of the lower half vane shell are tightly attached to form a lower connecting surface, Z-pins which have pinning and bridging functions and improve the connecting strength between the main beam and the upper half blade shell as well as between the main beam and the lower half blade shell are arranged at the connecting positions of the upper connecting surface and the lower connecting surface, and the part, located on two sides of the main beam, of the blade cavity is filled with foam. The Z-pin reinforced composite material wind power blade structure can obviously improve the layered rigidity of composite material laminated wood. A manufacturing method is simple. The Z-pin reinforced composite material wind power blade structure is high in designability, is easy to form overall and further has the advantages of being good in weight-reducing property, resistant to shearing, high in stripping resistance and small in damage to fibers.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of composite material reinforcement, in particular to a Z-pin reinforced composite material wind power blade structure and a manufacturing method thereof. Background technique

[0002] Wind turbine blades are the key components of energy conversion in wind turbines, and they are also the most complex components. The quality of their design and manufacture is directly related to the efficiency and service life of wind turbines, and affects the performance of the entire system. Among them, composite wind turbines Blades are being used more and more widely because of their light weight, high strength, designability, good load-carrying performance, and good fatigue performance. From the perspective of blade manufacturing technology, the current large and medium-sized fan blades basically adopt the structure of skin and main beam, and are prepared through a multi-step molding process, that is, the upper and lower...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More