Main shaft for wind turbine and wind turbine

By eliminating the casting boss of the wind turbine main shaft and adopting a method of fixed connection between the assembly bracket and the inner wall of the main shaft, the problem of difficult main shaft processing is solved and efficient production cycle optimization is achieved.

CN119333344BActive Publication Date: 2025-09-30ДУНФАН ЭЛЕКТРИК ВИНД ПАУЭР КО ЛТД
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Patent Information

Application Number
CN202411705859.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-26
Publication Date
2025-09-30
Estimated Expiration
2044-11-26

AI Technical Summary

Technical Problem

The cast boss structure of the wind turbine main shaft makes machining difficult, the process complicated, and the machining accuracy poor, which affects the production schedule.

Method used

A spindle structure is designed to eliminate the cast boss and use an assembly bracket to fix it to the inner wall of the spindle. The cables are fixed by magnetic connection or bonding to simplify the wiring process.

Benefits of technology

The structure of the main shaft is optimized, the processing efficiency is improved, the production cycle is shortened, and it is suitable for the main shaft manufacturing of large-scale wind turbines.

✦ Generated by Eureka AI based on patent content.
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Abstract

The present application provides a main shaft for a wind turbine generator set and a wind turbine generator set, relating to the technical field of wind turbine generator sets. The main shaft comprises a main shaft body and an assembly bracket for fixing cables. The main shaft body is provided with a first flange and a second flange oppositely disposed along its axial direction, with the first flange located on the inner side of the main shaft body and the second flange located on the outer side of the main shaft body. The assembly bracket is disposed within the main shaft body, with the two ends of the assembly bracket respectively connected to the first flange and the second flange, and the assembly bracket is fixedly connected to the inner wall of the main shaft body. This main shaft has an optimized structural form, thereby improving processing efficiency and shortening the production cycle.
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