Adjustable offshore large wind power blade lifting appliance and lifting method thereof

Abstract

The invention provides an adjustable offshore large wind power blade lifting appliance and a lifting method thereof, and relates to the blade lifting appliance and the lifting method of an offshore large wind power generator set. According to the lifting method, the adjustable offshore large wind power blade lifting appliance is adopted, and the lifting appliance comprises a platform, a blade rootend clamp, a blade tip end clamp, a balance weight and a swing arm, wherein the swing arm is hinged to the upper surface of the platform, the lower clamping head I is carried out horizontal positioning control by utilizing the positioning hydraulic cylinder I of the lifting appliance, the lower clamping head II is carried out horizontal positioning control by utilizing the positioning hydraulic cylinder II, the upper clamping head I and the upper clamping head II is carried out fall control by utilizing the clamping hydraulic cylinder I and clamping hydraulic cylinder II respectively, the hydraulic cylinder is adjusted and the hydraulic cylinder can be used for performing lead hammer intersection angle control on blades installed in front of the impeller, and adjusting requirements of mounting angles of blades can be met; except rubber block I and rubber block II, other parts of the lifting appliance are not in make contact with the blades in the whole lifting process, and the clamping force can also be controlled by clamping hydraulic cylinder I and clamping hydraulic cylinder II, the surfaces of the blades cannot be damaged, and reliable lifting is carried out on the offshore large wind power blade.

Description

technical field [0001] The invention belongs to the field of hoisting of wind power generators, and in particular relates to a blade hoisting tool of a large offshore wind power generator; the invention also relates to a method for hoisting blades of a large offshore wind power generator. Background technique [0002] The rapid development of the global economy has led to the gradual depletion of fossil energy, and the global environmental pollution has become increasingly serious. It is an important problem facing the world to seek new renewable and clean energy. Since the last century, wind power energy has gradually gained attention in various countries, and the wind power industry has developed rapidly, becoming the most important source of electric energy besides fossil energy. However, in recent years, the land resources that can be developed have been continuously decreasing, making it difficult for the land wind power generation business to maintain the supply of ele...

AI Technical Summary

Problems solved by technology

[0004] The blades of land-use wind turbines are usually hoisted by screwing the blade root with the spreader. However, in the existing offshore wind turbines, the weight of wind turbine blades is often much greater than that of land-use wind turbines. The hoisting method of wind power blades is hoisting, and the external dimensions of offshore wind power blades are relatively large, the blades are streamlined as a whole, smooth and have no lifting points, so it is impossible to set hooks on the surface of the blades to realize the hoisting of the blades with a crane

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