1. Observational Method
Checking sag: While the conveyor belt is running, observe the amount of sag between the two support points. Typically, the belt sag should be 1%-2% of the distance between the two support points. Excessive sag indicates insufficient tension; insufficient sag indicates excessive tension.
Checking the operating status: Observe the belt for smooth operation and any slippage, deviation, or vibration. If the belt runs smoothly without noticeable slippage or deviation, the tension is appropriate.
2. Touch Method
Checking the tightness: Gently press the conveyor belt to feel its tightness. If the belt feels too loose, the tension is insufficient; if it feels too tight, the tension is excessive.
3. Using a Tension Meter
Measuring Tension: Use a professional tension meter to measure the tension of the conveyor belt. Place the tension meter in the middle of the conveyor belt, measure the tension, and compare it to the standard tension value specified in the equipment manual. Adjust the tension: If the measured tension is lower than the standard value, increase the tension; if it is higher than the standard value, reduce the tension.
4. Operation Test
No-load Test: Observe the belt while it is running unloaded. If the belt runs smoothly without slipping or deviation, the tension is appropriate.
Load Test: Observe the belt while it is running loaded. If the belt still runs smoothly without slipping or deviation under load, the tension is appropriate.
5. Check Equipment Condition
Inspect the Drive Roller: Check the drive roller for wear, ensuring it is smooth and free of wear or damage. Severe wear on the drive roller may cause the belt to slip and the roller may need to be replaced.
Inspect the Belt Wear: Check the belt for wear, ensuring it is free of cracks, deformation, or excessive wear. If the belt is severely worn, replace it.
6. Consult the Equipment Manual
Consult the Equipment Manual: Different conveyor models have different belt tension requirements. When adjusting, refer to the equipment manual and follow the manufacturer's recommended standards. Follow Standards: Ensure tension adjustments comply with industry standards and equipment manufacturer recommendations.
7. Regular Inspections
Establish a Maintenance Schedule: Create a regular maintenance schedule that includes cleaning, inspecting, and adjusting equipment. Regularly check conveyor belt tension to ensure it remains within the proper range.
Keep a maintenance log: Record the details and timing of each adjustment to facilitate tracking of equipment operating status.
