Bulb tubular unit combination bearing radial support loosening fault early warning device

The invention provides a bulb tubular unit combination bearing radial support loosening fault early warning device, and belongs to the technical field of hydroelectric generating sets. Comprising a data acquisition module which is used for acquiring various data; the vibration waveform algorithm template is used for calculating radial vibration (peak-to-peak value) of the combined bearing of the unit and radial vibration frequency multiplication (one frequency multiplication) of the combined bearing; and the three-dimensional model algorithm module is used for taking the combined bearing radial vibration peak-to-peak value and the combined bearing radial vibration frequency multiplication value calculated by the vibration waveform algorithm template as a three-dimensional Z axis, taking the water head and the guide vane opening as an X axis and a Y axis, and entering a three-dimensional model algorithm for mathematical modeling calculation. The method can meet the quantitative trend prediction and performance