Common troubleshooting methods for conveyor chains

01 Sep. 2022

During the use of the conveyor chain, it is inevitable that the chain will fail. Here are the common troubleshooting methods for the conveyor chain: 

1. Sprocket wear: If there is obvious wear on both sides of the sprocket, the transmission alignment is not in place. If a "bend groove" occurs, it means that the sprocket should be replaced, or the sprocket can be reversely installed so that the less worn side faces the chain. Excessively worn sprockets should be replaced with the chain. 

2. Pin shaft wear: Usually pin shaft wear is caused by insufficient lubrication. Always check the lubricating oil for abrasives or change the lubrication method. 

3. Side grinding of the chain plate: If the inner surface of the inner chain link chain plate is severely worn, it means that the transmission is not aligned. The solution is to check the alignment of the shaft and sprocket. If there is no problem with the installation, it can be observed whether the rigidity is insufficient due to excessive load deformation during operation. 

4. Chain jitter: The reason for the jitter of the conveyor chain is that the chain is too loose, the load is too large, or one or more chain links are inflexible. The solution is to install a chain tensioner or adjustable center distance. Reduce load if possible. 

5. Matching of chain and sprocket: If the chain and sprocket do not cooperate well, it may be that the hinge of the chain is worn and the pitch is elongated. If there is a tooth skipping phenomenon, the chain should be replaced in time. Also replace the sprocket if worn to avoid damaging the new chain. 

6. The running noise of the conveyor chain is too loud: the reason for the excessive noise is that the sprockets are not coplanar; the chain is too tight or too small; the lubrication is insufficient; the chain and the sprocket are worn; or the chain pitch is too large. The solution is to check the parallelism of the front and rear axles and the coplanarity of the sprockets to correct them. Adjust the center distance and tensioning device to obtain proper tightness and ensure lubrication to the workpiece. 

7. Chain tension of conveyor chain: The tension of the chain is related to the sagging distance of the loose edge of the chain. For horizontal and inclined transmissions with adjustable center distance, the sag of the loose edge of the chain should be 2% of the left stone of the center distance. The centerline is vertically driven or subjected to vibration loads, and the reverse drive should make the chain more tensioned.


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