Wind wheel hoisting tool

Abstract

The invention discloses a wind wheel hoisting tool. The wind wheel hoisting tool comprises a main hoisting beam with a plurality of slide wheel assemblies, a drive mechanism which is arranged on the main hoisting beam, and a supporting beam assembly, wherein a hanger assembly which is used for hoisting a wind wheel to realize mounting or dismounting the wind wheel is wound on any slide wheel assembly; the drive mechanism is connected to all hanger assemblies, and can provide drive force; and the supporting beam assembly is used for fixedly connecting a main hoisting beam to a fan main shaft positioned below the main hoisting beam to realize supporting the main hoisting beam, and can transmit gravity of the wind wheel to the fan main shaft. The wind wheel hoisting tool is fixedly mounted onthe fan main shaft, so that the wind wheel can be hoisted and dismounted without a hoist, and therefore, hoisting cost for large part replacement can be saved; and meanwhile, the tool can realize 90-degree turnover, in air, of the wind wheel, and also cancels a tailing crane.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a wind wheel hoisting tool. Background technique [0002] At present, during the entire life of the wind turbine, due to the replacement of large parts such as blades, hubs, main shafts, and gearboxes after damage or replacement due to technical upgrades, the wind turbine rotor needs to be hoisted. The hoisting methods of the wind turbine rotor mainly include two hoisting methods: rabbit ear hoisting and single blade hoisting. Among them, rabbit ear hoisting refers to the installation of two slings at the root of the two blades adjacent to the tower, and the other two slings. The end is hung on the hook of the crane, and the third blade is used as the tail blade. A sling is installed in the design stress area of ​​the tail blade and hung on the hook of the auxiliary crane, so that the main crane can be used to lift the wind wheel. The auxiliary crane pulls the thir...

AI Technical Summary

Problems solved by technology

However, the above two hoisting methods must have a main hoist with sufficient tonnage and necessary auxiliary hoist (the auxiliary hoist of the rabbit ear hoisting method also needs to change with the quality of the wind rotor and the height of the tower), with the development of wind turbine technology , the height of the tower is getting higher and higher (120 meters, 140 meters follow-up higher), the quality of the wind wheel is getting bigger and bigger, so the tonnage of the crane required is getting bigger and bigger, and the cost is getting higher and higher, and the crane for the mountain wind farm Assembly is often limited by the size of the site and it is difficult to meet the hoisting requirements

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