Main frame for wind driven generator and preparation mold and preparation method of main frame

By setting up prefabricated reinforcement bodies in the high stress area of ​​the wind turbine main frame and through bimetal composite casting and mechanical connection, the problems of high weight and cost of the traditional main frame are solved, and the strength and lightweight are achieved.

CN119712437APending Publication Date: 2025-03-28CRRC TECH INNOVATION (BEIJING) CO LTD +1
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Patent Information

Application Number
CN202510007137.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

While meeting the strength requirements, the traditional wind turbine main frame has increased weight, high cost and complex design, resulting in a large number of iteration optimizations, making it difficult to meet the needs of lightweight and cost reduction.

Method used

The prefabricated reinforcement body and the frame body are combined through bimetal composite casting to locally strengthen the high-stress zone and connect it through concave-convex and dovetail grooves to achieve the dual combination of machinery and metallurgy.

Benefits of technology

While ensuring the strength of the main rack, it reduces weight, reduces costs, simplifies the design iteration process, and improves reliability and material utilization.

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Abstract

The invention discloses a main machine frame for a wind driven generator and a manufacturing mold and method of the main machine frame, and relates to the technical field of wind driven generators. The prefabricated reinforcing body is arranged in a high stress area of the main machine frame, and the prefabricated reinforcing body and the main machine frame body are combined together in a bimetal composite casting mode. According to the main frame for the wind driven generator, materials with different properties can be organically combined through the bimetal composite casting technology, the main frame is locally strengthened, reasonable utilization of the materials is achieved, the weight of the main frame can be reduced while the strength of the main frame is guaranteed, meanwhile, the overall structure of the main frame cannot be changed, and the overall performance of the main frame is improved. And the design difficulty is reduced, the number of design iterations is reduced, and the manufacturing cost is reduced.
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