Lifting appliance device for installing wind-turbine blades, and operation method

Abstract

The invention belongs to the lifting field of wind-turbine blades, and discloses a lifting appliance device for installing wind-turbine blades, and an operation method. The lifting appliance device for installing the wind-turbine blades comprises a lifting rope, a main beam lifting frame, horizontal walking mechanisms and fixture devices. The lifting rope is connected onto a lifting ring of the main beam lifting frame. The main beam lifting frame is welded by adopting double-layer structural steel; and a diesel engine, an electrical cabinet, a hydraulic station and a walking hydraulic cylinderare arranged on the main beam lifting frame. The horizontal walking mechanisms are arranged at two ends of the length direction of the main beam lifting frame. The fixture devices are arranged underthe horizontal walking mechanisms. According to the lifting appliance device for installing the wind-turbine blades, and the operation method provided by the invention, double clamping mechanisms areadopted, so that the safety on lifting fan blades can be ensured; and the clamping span of the horizontal direction of two pairs of clamping hands can be dynamically adjusted according to the blade length. The lifting appliance device for installing the wind-turbine blades provided by the invention adopts full hydraulic drive so as to be high and stable in torque, high in environment adaptability,long in service life, and convenient to operate, and can realize the advantages of controllability, adjustability and high safety during work.

Description

Invention field [0001] The invention belongs to the field of hoisting wind turbine blades, and relates to a hoisting tool for blade clamping and hoisting and an operation method. Background technique [0002] Wind energy is a renewable and environmentally friendly energy source, and wind turbines are devices that convert wind energy into electrical energy. With the advancement of wind energy technology, wind turbines are becoming more and more economical and efficient. The single-machine capacity of the wind generator gradually increases, and the size of the blade shape also increases, and for fluid mechanics and structural considerations, hooks and lifting holes cannot be added to the blade. Therefore, higher requirements are put forward on the transportation and installation of blades. Therefore, it is necessary to design a spreader specially suitable for wind turbine blades to safely install and transport the blades. [0003] There are many kinds of wind turbine blade spreade...

AI Technical Summary

Problems solved by technology

First of all, the friction between the clamping device and the blade is affected by many factors such as environment, temperature, humidity, etc., and it is uncontrollable to a certain extent, and it is not very reliable.

The electromagnetic force is limited by the material. If the blade is made of non-metallic or non-magnetic material, this type of clamping device will be useless.

Moreover, during the working process of the above two clamping devices, if there are special circumstances such as power failure or equipment failure, the blade may fall and hurt people, which is not very safe and reliable.

[0005] 2) The spreader generally uses two clamping devices with the same spacing to clamp the blade, which cannot be dynamically adjusted according to the actual blade length

In this way, when the center of mass of the clamp and the center of mass of the blade are not on the same vertical line, it is necessary to re-install the clamp, which increases the difficulty of assembly and reduces the work efficiency of hoisting

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