Conveyor belt deviation is one of the common faults in the conveying system that affects production efficiency and equipment life. Deviation may not only cause increased wear of the conveyor belt, but also cause safety hazards. There are many reasons for deviation. Proposing effective solutions for common causes will help ensure the stable operation of the conveying system.
1. Adjust the position of rollers or drums
Problem description
If the installation position of the rollers or drive drums is skewed or the support is not in place, it will cause the conveyor belt to deviate to one side during operation, resulting in deviation.
Solution
Use a level and alignment tool to check the installation angle of the rollers and drive drums to ensure that they are perpendicular to the direction of movement of the conveyor belt.
Adjust the position of the roller frame so that the rollers are centered and parallel along the width of the conveyor belt.
For the drive drum, check the bearing wear and replace it if necessary to keep the drum rotating smoothly.
2. Clean the debris on the conveyor belt and roller surface
Problem description
The debris such as stones, debris, dust, etc. accumulated on the conveyor belt surface and near the roller will hinder the normal movement of the belt, causing uneven force on the belt and deviation.
Solution
Develop a regular cleaning plan to keep the conveyor belt surface and roller area clean.
Install cleaning devices (such as scrapers, brushes, etc.) to reduce the accumulation of debris.
Inspect areas prone to accumulation of debris and promptly remove obstacles that may cause the belt to deviate.
3. Adjust the tension of the conveyor belt
Problem description
Uneven distribution of conveyor belt tension, especially when the tension difference on both sides is large, will cause the belt to deviate to the side with less tension.
Solution
Use a professional tension meter or tension sensor to detect the tension on both sides of the conveyor belt.
Adjust the tensioning device (tensioning wheel or tensioning roller) to ensure uniform belt tension.
Regularly check the status of the tensioning device spring or hydraulic system to ensure that it is working properly.
4. Check the wear of the conveyor belt
Problem description
The conveyor belt is severely worn locally or on one side, and the belt surface thickness is uneven, resulting in unbalanced force during belt operation, which causes deviation.
Solution
Periodically conduct visual and thickness inspections on the conveyor belt to promptly detect abnormal wear areas.
Replace or partially repair the conveyor belt that is severely worn and affects operation in a timely manner.
Optimize the selection of conveyor belt materials based on operating conditions to improve wear resistance.
5. Correct the conveyor belt alignment
Problem description
The incorrect alignment of the conveyor belt is the most direct cause of deviation. Inaccurate alignment will cause the belt to be stressed along the edge of the track and gradually deviate.
Solution
Use a special conveyor belt alignment instrument to detect the position deviation of the conveyor belt in real time.
Adjust the roller group or modify the belt guide system to achieve automatic belt alignment.
For old equipment, consider upgrading and installing an automatic alignment system.
6. Install the guide device
Problem description
When the guide device is missing or the design is unreasonable, the belt is easy to run off the track.
Solution
Choose suitable side guide wheels or guide rails according to the width and material of the conveyor belt.
Ensure that the material of the guide device matches the conveyor belt to reduce friction and wear.
Regularly check the installation firmness and wear of the guide device and perform maintenance in time.
7. Check the connection parts of the conveyor belt
Problem description
If the connection part of the conveyor belt is installed unevenly, too tight or too loose, it will cause abnormal local force on the belt and cause deviation.
Solution
Use high-quality connectors and strictly follow the installation specifications.
Check whether the connection part has warping, wrinkles or damage.
Regularly maintain the connectors and replace damaged fasteners or glued areas in time.
8. Use deviation switch monitoring
Problem description
Once the conveyor belt deviates, if it is not discovered and handled in time, it may cause serious equipment damage and shutdown.
Solution
Install a deviation switch or laser deviation detection system for automatic monitoring.
When the belt deviates from the preset track, the system automatically alarms or links to shut down to prevent the accident from expanding.
Cooperate with daily inspection and maintenance to improve the overall response speed and safety of the system.
