Structural function and fault mode analysis of high-power nuclear power circulating pump gearbox

This article provides a detailed analysis of the structure and function of the high-power nuclear power circulation pump gearbox, and explores its failure modes and effects in depth. A detailed description of the structural composition of the gearbox was provided, including the transmission system, lubrication and cooling system, feedback system, etc. The system structure and classification of the vertical planetary reduction gearbox were elaborated.A systematic analysis was conducted on the failure modes of the gearbox using the Failure Mode and Effects Analysis method, and the impact of different failure modes on the system was evaluated.