Cooling tower pully reducer maintenance

Maintenance guide for cooling tower pulley reducer

The cooling tower pully reducer is the core component of the cooling tower fan drive system. It converts the high-speed rotation of the motor into the low-speed high torque required by the fan through a belt, thereby driving the fan impeller to operate. Scientific maintenance can not only extend the lifespan of equipment, but also ensure the efficient and stable operation of cooling towers.

The function of cooling tower pulley reduceer

1.Deceleration and torque increase:

Convert the motor from high-speed rotation to low-speed high torque to ensure smooth operation of the fan.

2.Power transmission: 

Power is transmitted from the motor to the reducer through a belt, and then to the fan impeller.

3.Buffer protection: 

The belt drive has a certain degree of elasticity, which can buffer load impact and protect the motor and fan.

Common faults of cooling tower pulley reducer

1.Belt slippage or breakage

Belt aging, insufficient tension, or poor alignment can lead to a decrease in transmission efficiency, and even belt breakage.

2.Gear wear

Long term operation of the internal gears of the reducer may result in tooth surface wear and peeling, leading to increased noise and decreased efficiency.

3.Bearing damage

Bearing wear or poor lubrication can produce abnormal noise and vibration, affecting the operation of the fan.

4.Insufficient lubrication

Insufficient or deteriorated gearbox oil can accelerate gear wear and temperature rise.

5.Poor alignment of pulley or shaft

Belt pulley installation offset or incorrect axis will increase belt wear and gearbox load.

Maintenance method

1. Check and adjust the belt

1)Regularly check the wear of the belt and replace it promptly if cracks or aging are found.

2)Adjust the belt tension to ensure that the belt is neither loose nor too tight.

3)Check the belt wheel pairs to ensure smooth transmission.

2. Maintenance of gears and reducers

Regularly check the meshing of gears and clean impurities inside the gearbox.

Replace the gear oil or grease according to the manufacturer's requirements to maintain sufficient lubrication.

3. Bearing maintenance

Check the operating condition of the bearings and add lubricating grease or replace worn bearings if necessary.

4. Temperature and vibration monitoring

Monitor the temperature of the gearbox during operation to avoid overheating.

Regularly check the vibration situation and promptly shut down for any abnormalities.

5. Cleaning and Protection

Regularly clean the external dust of the belt, pulley, and reducer.

Outdoor cooling towers should pay attention to waterproofing, rain resistance, and corrosion resistance.

Maintenance precautions

1.Follow the manufacturer's manual:Maintenance requirements may vary for different models of reducers.

2. Power off and lock during shutdown maintenance to ensure safety.

3. Record maintenance logs: including belt replacement, lubricant replacement, inspection results, etc.

4. Avoid overloading operation: Overloading will accelerate the wear of belts, gears, and bearings.