How To Prevent Abnormal Vibration in Copper Granulators?

I. Maintain Dynamic Balance

1. Regular Balance Calibration: Perform dynamic balance calibration on high-speed rotating components such as rollers and propellers every quarter. Adjust the mass distribution using methods such as weight reduction or weight addition to ensure that the center of mass of the rotating body coincides with the center of rotation.

2. Optimize Design from the Source: Select equipment with a thickened base and reinforced vibration-resistant structure to reduce imbalance factors from the design stage. For example, the precision balancing technology used in equipment from Henan Grain Institute can significantly reduce vibration risks.

II. Monitor Vibration Indicators

1. Real-time Vibration Monitoring: Install vibration sensors to monitor data such as amplitude and frequency, and promptly investigate any abnormalities. For example, if the amplitude continuously exceeds 4.5 mm/s or a first octave peak occurs, the machine should be stopped for inspection.

2. Spectrum Analysis Diagnosis: Identify the vibration source through spectrum analysis, distinguishing between mechanical faults (such as bearing wear) and electrical problems (such as electromagnetic imbalance), and address them accordingly. III. Equipment Maintenance and Management

1. Daily Inspection and Tightening: Before starting the machine each day, check the condition of the machine base fixing screws and transmission components (bearings, V-belts), and replace worn parts promptly to prevent loosening and vibration.

2. Uniform Feed Control: Adjust the feed valve to maintain a stable raw material flow rate and avoid resonance caused by sudden load changes. The motor load can be monitored using an ammeter to ensure smooth operation.

3. Regular Cleaning and Lubrication: Clean the inside of the equipment to remove accumulated chaff and impurities to reduce friction; regularly lubricate rotating parts such as bearings to reduce the risk of wear.

IV. Preventive Maintenance Recommendations

1. Vibration Reduction Measures: Install rubber or polyurethane vibration damping pads on the machine base to absorb high-frequency vibration energy.

2. Material Upgrades: Use high-elasticity modulus materials (such as spring steel) for key components and enhance fatigue resistance through surface treatments (such as chrome plating).