What should I do if the chain of amusement park facilities fails?
What should I do if the chain of amusement park facilities fails?
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2022/2/24 4:44:45
The middle key board is broken. The reason is the fatigue failure of the chain plate under the action of the alternating load, or because of the replacement of a new chain link. caused by improper warranty. If the size of the chain is large and the price is expensive, the damaged links can be removed in time, but more links of the large-size chain have been broken and damaged, the chain should be discarded and the chain should be renewed.
In recent years, the domestic large-scale amusement industry has developed rapidly. Many cities have built large-scale amusement parks, and more and more large-scale amusement park facilities have been put into operation. Affected by various factors, amusement park facilities often experience various failures and accidents during operation, resulting in casualties and property losses. By analyzing some fault phenomena that often occur in amusement park facilities, taking correct treatment methods, and formulating perfect preventive measures, all kinds of accidents can be avoided more effectively. The common mechanical faults and solutions in the operation of amusement park facilities are as follows:
1. Chain jitter. The possible cause is that the chain is too loose, the load is too high, or one or more links are inflexible. The solution is to install a chain tensioner or adjustable center distance. Reduce load if possible.
2. Joint office fatigue. When the load is too large and exceeds the fatigue limit of the chain plate, the chain plate will suffer fatigue failure, and tiny cracks will be generated around the hole until it breaks. The solution is to reduce the load or replace the chain with a higher load capacity.
3. Sprocket wear. If there is obvious wear on both sides of the sprocket, the transmission alignment is not good. if it produces“curved groove” Indicates that the sprocket should be replaced if the wear is excessive, or the sprocket can be reversely installed so that the less worn side faces the chain. Excessively worn sprockets are best replaced with the chain.
Fourth, the pin shaft wear. Worn pins may be due to insufficient lubrication. Always check the lubricating oil for abrasives or change the lubrication method.
Fifth, the chain and the sprocket do not cooperate well. If the chain and the sprocket do not cooperate well, the hinge of the chain may be 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.
Sixth, the chain plate side grinding. If the inner surface of the inner link plate is severely worn, the drive is out of alignment. 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.
Seven, pin gluing. The pin shaft is generally caused by insufficient oil supply. If only one end is glued, check the installation of the shaft and the sprocket, whether the shaft is parallel, whether the sprocket is coplanar, and whether the shaft and the sprocket move during operation.
8. The chain tension is abnormal. The tension of the chain is related to the sag distance of the loose edge of the chain. For horizontal and inclined transmission with adjustable center distance, the sag of the loose edge of the chain should be about 2% of the center distance. The centerline is vertically driven or subjected to vibration loads, and the reverse drive should make the chain more tensioned.
Nine, the chain running noise is too large. This can be caused by sprockets that are not coplanar, too much or too little chain slack, insufficient lubrication, worn chain and sprockets, or an oversized chain pitch. In this case, it is necessary to check the parallelism of the front and rear couplers and the coplanarity of the sprocket to correct it. Adjust the center distance and tensioning device to obtain proper tightness and ensure lubrication to the workpiece.
10. The front and rear axles are not parallel, and the coplanarity of the sprockets is poor. In terms of wear life, the performance of the chain depends to a large extent on the correct installation of the front and rear axles and sprockets. The requirements are: the parallelism of the front and rear axles is within 1/300. The coplanarity of the front and rear wheels is 0.5-1.0mm/m. If the chain finds the above problems during operation, it should be adjusted in time.
