Deviation early warning equipment for rotating shaft of fan

The utility model relates to the field of fans, in particular to fan rotating shaft deviation early warning equipment. The technical problems that when an existing fan rotating shaft works, the deviation degree of the rotating shaft is difficult to detect rapidly, when the rotating shaft deviates, rapid early warning is not convenient to prompt maintenance personnel to maintain a fan in time, and the safety of the fan in use is reduced are solved. According to the technical scheme, the draught fan rotating shaft deviation early warning equipment comprises a draught fan assembly. According to the utility model, the two groups of test assemblies for detecting the deviation of the rotating shaft are arranged, when the rotating shaft deviates, the pressure detection structures on the first test assembly and the second test assembly detect the pressure, and the early warning assembly is started to realize early warning, so that the problems that the deviation degree of the rotating shaft is difficult to quickly de