Fault diagnosis of single-stage worm gear reducer

The use, maintenance and installation rules of the reducer are ignored by the majority of users, resulting in a reduction in the service life of the reducer.Most users use, install and maintain the reducer based on past experience and independent research methods, there is no technology at all.When the reducer manufacturer develops and manufactures the reducer, they have a set of instructions for use, installation and maintenance to inform and remind users how to use, install and maintain the reducer.

The most common failures of single-stage worm gear reducers are gear damage, bearing failure and gear failure, which shows the status and importance of gear problems in reducers.Generally, the gear reducer needs to be shut down for maintenance, which is troublesome.Therefore, the research on maintenance and fault diagnosis of gear reducer without dismantling has extremely important technical and economic significance.

When the drive shaft, gears and bearings of the reducer are working, they will vibrate regardless of whether they are faulty or not.If a fault occurs, the amplitude of the generated vibration increases and the energy distribution of the vibration signal changes.Therefore, it is one of the more effective methods to often use the vibration analysis method to diagnose the fault of the gear reducer.Tooth surface wear, pitting, shaft bending and broken teeth are typical faults, which can be analyzed from the vibration characteristics of the gear reducer.