Maintenance and replacement device for part of pitch system and wind turbine generator set

Abstract

The invention provides a maintenance and replacement device for a part of a pitch system and a wind turbine generator set. The maintenance and replacement device for the part of the pitch system comprises a rotating driving device and an operating arm which are mutually connected, wherein the rotating driving device is fixedly arranged at the top of a cabin framework; the rotating driving device is used for driving the operating arm to rotate; the operating arm is used for lifting the part of the pitch system to a position outside an opening of a hub wall and rotates to a position above a cabin under the drive of the rotating driving device. The maintenance and replacement device for the part of the pitch system provided by the invention has the advantages that the maintenance and the replacement of the part which cannot be detached by manpower of the pitch system in a high-power set hub are enabled to become more simple and feasible, the hub is not required to be detached and the production, transportation and hoisting costs are greatly reduced.

Description

technical field [0001] The invention relates to mechanical manufacturing technology, in particular to a maintenance and replacement device for components of a pitch control system and a wind power generating set. Background technique [0002] With the development of human society, the demand for energy is becoming more and more intense. However, the depletion of oil and other resources and the environmental pollution caused by it have become a problem that plagues the society. Wind energy, as a renewable energy source, brings new challenges to today's society. As an opportunity, wind power has laid the foundation for the harmonious coexistence between man and nature. [0003] The variable pitch system is a key component of large-scale wind turbines. At present, most large-scale wind turbines adopt variable pitch and variable speed control. The pitch motor drives the reducer to drive the output pinion to mesh with the pitch bearing ring gear, and uses grease Lubricated to dr...

AI Technical Summary

Problems solved by technology

[0004] With the increase of the power of a single unit, the diameter of the impeller of the fan is also increasing, and the weight of the components such as the pitch drive in the hub is also increasing. degree

However, in the prior art, the small maintenance crane in the engine room cannot enter the impeller and hub. If it is necessary to replace the parts of the system, it often requires a large amount of production, transportation, and hoisting costs, and it takes a long time to work.

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