1. Load Variation: The weight of the conveyed material directly affects the tension. Under heavy loads, the tension needs to be increased to maintain friction; under light loads, the tension needs to be decreased to avoid over-tightening.
2. Temperature Fluctuations: High temperatures cause the conveyor belt to elongate, leading to a decrease in tension; low temperatures cause it to contract, increasing tension. The tensioning device needs to automatically adjust and compensate for this.
3. Tensioning Device Settings:
Type: The adjustment accuracy of the counterweight, hydraulic, or screw-type tensioning device directly affects the tension stability.
Location: The tensioning wheel should be installed on the inside of the slack side, close to the large pulley, to reduce bending stress and maintain the wrap angle.
4. Other Factors:
Conveyor Belt Aging: Long-term use leads to plastic deformation and wear, resulting in slack.
Drum Condition: Wear or residue on the rubber coating changes the coefficient of friction, indirectly affecting the required tension.
