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Causes and elimination of vibration of traditional Chinese medicine pulverizer
It is quite common for hammer-type shredders that have just been overhauled and installed to experience strong vibrations during the initial test run. This issue can be caused by several factors, and it's important to identify and resolve them properly to ensure smooth operation. Here are the main reasons and solutions:
1. **Improper Installation of Hammers**: During inspection and assembly, if the hammers are not aligned correctly, it can cause imbalance in the rotor. To avoid this, all hammers should be rotated in the same direction when installed. Failure to do so can result in significant vibration during operation.
2. **Weight Discrepancy Between Hammer Sets**: If the weight difference between two sets of hammers exceeds 5 grams, it can lead to imbalance. The solution is to adjust the weights so that the difference is less than 5 grams.
3. **Stuck Hammers**: Some hammers may become too tight and fail to open during operation. After the machine has stopped, manually turning the hammers can help identify and fix the issue, ensuring they move freely.
4. **Unbalanced Rotor Components**: Other parts on the rotor, such as plates or shields, might not be balanced. A thorough check and adjustment of the rotor balance is necessary to eliminate this problem.
5. **Bent Spindle**: A bent or deformed spindle can cause severe vibrations. In such cases, the spindle should either be straightened or replaced entirely.
6. **Faulty Bearings**: Excessive bearing clearance or damage can also contribute to vibration. Replacing the bearings with new ones is typically the best solution.
7. **Loose Fixing Nuts**: The bottom corner nuts may not be tightened properly, leading to instability. Ensuring these nuts are securely fastened can prevent this issue.
By carefully checking each of these potential causes and addressing them one by one, you can significantly reduce or eliminate vibrations in a newly installed hammer-type shredder. Regular maintenance and proper installation practices are essential for long-term performance and safety.