The utility model discloses a trigger mechanism and a vibration monitoring device, and relates to the technical field of vibration monitoring, the trigger mechanism comprises a trigger
assembly, the trigger
assembly comprises a step
metal disc, a
metal ball arranged in the step
metal disc, and a first-stage trigger ring, a second-stage trigger ring and a third-stage trigger ring which are sequentially arranged on the step metal disc from inside to outside. The damping force is increased through the
buffer solution, the stability is improved, the metal balls on the stepped metal disc are in rolling contact with the trigger ring along with vibration, the stepped metal disc and the trigger ring form a loop, trigger signals of different grades are generated, corresponding alarms are given out, and therefore the vibration condition of equipment is monitored in real time, and the safety of the equipment is guaranteed. The vibration level of the equipment can be directly and effectively obtained in real time, manual observation and
estimation are not needed, the vibration monitoring device is simple and reliable in structure and low in cost, the vibration condition of the equipment can be monitored in real time, hidden dangers of related equipment can be checked in time, and equipment problems can also be checked in time.