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What are the faults of the transmission sprocket?
Sprockets are divided into two types: driving sprocket and driven sprocket. Only when these two cooperate with each other can they achieve normal operation.Due to long-term use, even if the daily maintenance and maintenance are done well, it is no match for the corrosion of time, causing some common failures of the sprocket. There are many common failures of the transmission sprocket. Let's analyze and solve the failures of the transmission sprocket together with everyone. method.
200. Lubrication of chain drive: The reasonable maintenance of any chain drive requires proper lubrication.The wear and fatigue of the chain, the wear and corrosion of the sprocket, the inflexible link or the tight hinge are all related to lubrication. If the chain wears quickly, the pin shaft changes color, and the operation is not stable, it indicates that the chain is insufficiently lubricated.Under normal circumstances, the following lubricants are recommended: No. 400 oil for temperature 20-400C, No. 1000 oil for 30-1000C, No. 1200 oil for 40-1200C, and No. 1400 oil for 50-3000C.Manual lubrication can be used.Brush or oil can for lubrication.Chains with shells should be lubricated with shallow oil or dripping oil.If the working temperature exceeds XNUMXC and cannot be lubricated with petroleum, it is more effective to use colloidal graphite dispersed in carbon tetrachloride or white kerosene.
XNUMX. Faults and troubleshooting methods in chain drive
1.前后轴的平行性与链轮的共面性 对于磨损寿命来讲，链条的性能在很大程度上取决于前后轴和链轮的安装是否正确。其要求是：前后轴的平行度在1/300以内。前后轮的共面性在0.5—1.0mm/米。如果链条在运转过程中发现上述问题应及时调整。
2. Chain tension 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 2% of the center distance.If the center line is driven vertically or subjected to vibration load, the reverse drive should make the chain more tensioned.
3. Chain and sprocket coordination If the chain and sprocket do not fit well, it may be that the chain hinge is worn and the pitch is elongated. If there is a phenomenon of tooth skipping, the chain should be replaced in time.If the sprocket is worn out, replace it to avoid damage to the new chain.
4. Chain jitter The cause of chain jitter is that the chain is too loose, the load is too large, or one or more chain links are not flexible.The solution is to install a chain tensioner or an adjustable center distance.Reduce the load if possible.
5. Excessive chain running noise is caused by the fact that the sprocket is not coplanar; the chain tension is too large or too small; the lubrication is insufficient; the chain and sprocket are worn; or the chain pitch is too large.The solution is to check the coplanarity of the front and rear shaft parallel to the sprocket and correct it.Adjust the center distance and tensioning device to obtain proper tightness and ensure lubrication to the workpiece.
6. Chain plate side wear If the inner surface of the inner 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 the sprocket.If there is no problem with the installation, you can observe whether the rigidity is insufficient due to excessive load and deformation during operation.
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