The reason for the loud noise of the JZQ series cylindrical gear reducer coaxial JZQ250-10.35-I reducer

The reasons for the loud noise of ZQ250 reducer are complex, involving multiple aspects such as gears, bearings, motors, loads, and installation. The following is a specific analysis:

Gear problem

Gear wear: After long-term use, the tooth surface of the gear may experience wear, leading to a decrease in meshing accuracy and an increase in noise. Especially under high load and frequent start stop working conditions, wear and tear will be more pronounced.

Poor gear meshing: Insufficient installation accuracy or gear manufacturing errors may lead to poor gear meshing, such as excessive or insufficient tooth clearance, uneven meshing marks, etc. This will cause the gears to produce impact and vibration during operation, resulting in significant noise.

Gear quality issues: If the material quality of the gear is poor or there are defects in the manufacturing process, such as internal pores, inclusions, etc., it may cause deformation or damage to the gear during operation, resulting in noise.

Bearing issues

Bearing wear: Bearings are key components that support the gearbox shaft system. After long-term operation, the rolling elements and raceways of the bearings may experience wear, fatigue peeling, and other phenomena, resulting in increased bearing clearance, decreased shaft system stability, and noise.

Poor lubrication of bearings: Lack of sufficient lubricating oil or poor quality of lubricating oil used can increase the friction of bearings, generate heat, accelerate bearing wear, and also lead to increased noise.

Motor issues

Motor unbalance: Unbalanced motor rotor can cause motor vibration, which is transmitted to the reducer through the coupling, resulting in increased noise from the reducer.

Motor malfunction: Short circuits, open circuits, and other faults in the motor winding can cause unstable motor operation and generate abnormal electromagnetic noise, which may also be transmitted to the reducer through connecting components.

loading problem

Excessive load: If the load borne by the reducer exceeds its rated load, it will cause excessive pressure on components such as gears and bearings, resulting in unstable operation and increased noise.

Sudden load change: During the working process, if the load changes frequently and suddenly, such as frequent starting, stopping, loading, or unloading, it will cause the gears and shaft systems inside the reducer to be impacted, resulting in noise.

Installation and foundation issues

Insufficient installation accuracy: The coaxiality and perpendicularity of the connection between the reducer, motor, and load equipment do not meet the requirements, which will cause additional stress and vibration during the operation of the reducer, resulting in increased noise.

Unstable foundation: If the installation foundation of the reducer is not firm or the stiffness is insufficient, vibration will occur during the operation of the reducer, which will amplify the noise and may also affect the normal operation and service life of the reducer in the long run.