Fan blade root anti-deformation tool and anti-deformation method

Abstract

A fan blade root anti-deformation tool comprises a main body structure used for supporting the root of a fan blade and an auxiliary positioning bolt used for connecting the main body structure with the root of the fan blade, the main body structure comprises a center plate and at least two installation arms arranged in the circumferential direction of the center plate, one end of each installationarm is fixedly installed on the center plate, an adjusting nut is fixedly installed at the other end of each installation arm, an adjusting bolt is connected to each adjusting nut in a screwed mode,a supporting leg matched with the root of the fan blade is fixedly installed on each adjusting bolt, and a plurality of supporting through holes matched with the auxiliary positioning bolts are formedin the supporting legs. The tool is simple and compact in structure, can effectively prevent the root of the blade from deforming, guarantees the circumference of the root of the blade, and enables the thicknesses of two sides of a bolt hole in the root of the blade to meet the design requirements.

Description

technical field [0001] The invention relates to the technical field of wind energy blade manufacturing, in particular to a deformation preventing tool for the root of a fan blade, and also relates to a deformation preventing method for the above deformation preventing tool for the root of the fan blade. Background technique [0002] With the deepening understanding of environmental issues around the world and the continuous improvement of renewable energy comprehensive utilization technology, the global wind power industry has developed rapidly in recent years. As one of the fastest-growing renewable energy sources at this stage, wind power's proportion in the global power production structure is increasing year by year, and it has broad development prospects. In the future, the cumulative installed capacity of wind power in the world will continue to grow steadily at a rate of about 10% per year, and will reach 817.00GW in 2021; in addition, the newly installed capacity of ...

AI Technical Summary

Problems solved by technology

[0003] Fan blades, as the key components of wind turbines to capture wind energy, are mainly made of reinforced fiber and reinforced resin-based composite materials. The advantages are easy forming, waterproof, and anti-corrosion. However, the resin itself has the characteristics of curing and deformation, and is susceptible to Influenced by external factors such as temperature and gravity, the root of the blade is prone to deformation, which is mainly reflected in the out-of-roundness of the root of the blade, which leads to the failure of the hole in the root of the blade to fall on the set circle, resulting in the wall of the hole being too thin locally, which requires a lot of manpower and labor. Material resources for maintenance, or even scrapped blades; after analysis, such problems mainly occur before and after the blade clamping process and punching process

Images