A spindle thermal management system

Abstract

The embodiment of the application provides a kind of main shaft thermal management system, including main shaft body and external heat dissipation structure, its inside has hollow cavity, and is provided with internal convection structure, internal convection structure is arranged in the inner wall of hollow cavity, for guiding the axial flow of air inside hollow cavity when main shaft rotates.External heat dissipation structure is arranged on the outer surface of main shaft body, and external heat dissipation structure is at least partially arranged on the outer surface in the same radial direction of hollow cavity.By this kind of inside and outside collaborative heat dissipation mechanism, guide the axial flow of air inside hollow cavity and the effective emission of external heat, realize the active regulation of main shaft heat, with the advantages of effectively reducing the temperature of main shaft bearing area, improving the operating stability and service life of wind turbine generator set.

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