I. Tension Adjustment
1. Initial Tension Setting
Use a tension meter for quantitative adjustment, avoiding errors from the "feel method." The recommended tension range is 100-150N (specific values should refer to manufacturer parameters).
For high-impact working conditions, a 15-20% dynamic margin can be reserved.
2. Tensioner Control
The tensioner should be installed on the slack side of the timing belt, ensuring flexible rotation and sufficient travel.
After 2 hours of operation, retighten to 105% of the standard value, and after 72 hours, return to ±5% of the standard value.
II. Alignment and Parallelism Calibration
1. Axis Alignment
Use a laser alignment instrument to ensure the parallelism of the two shafts is ≤0.1mm/m, and the coplanarity error of the pulleys is ≤0.5mm.
The frame must have sufficient rigidity to prevent dynamic deformation leading to misalignment.
2. Pulley Position Check
The timing belt should be centered without deviation. Axial position adjustment can be achieved by moving the pulley or bearing housing.
III. Trial Run and Verification
1. Graded Testing
Start with jogging, then low speed, and gradually increase the speed to the rated working condition, observing for misalignment, tooth skipping, abnormal noise, and temperature rise.
Verify positioning accuracy (e.g., ±0.1mm) and smoothness of the speed curve.
2. Anomaly Handling
Tooth skipping: Check if the tension is insufficient or the pulley tooth profile is worn.
Noise: Optimize tooth profile parameters (such as GT2 tooth profile) or avoid resonance ranges.
IV. Maintenance and Monitoring
Daily inspection: Monitor tension and misalignment every 8 hours, and check pulley wear weekly.
Cleaning management: Regularly remove foreign objects from the tooth grooves to prevent oil contamination from affecting meshing.
