There are some common misconceptions in the process of maintaining roller chains, which may affect the performance and service life of the chain. Here are some key misconceptions and their explanations:
1. Improper adjustment of chain tension
A common misconception is the adjustment of chain tension. Many people believe that the chain should be adjusted very tight to prevent chain jumping and chain derailment. However, a too tight chain will increase power consumption and bearing wear, while too loose may cause chain jumping and chain derailment. The correct tension should be about 1%~2% of the center distance. For vertical transmission or vibration load, reverse transmission and dynamic braking, the chain sag should be smaller
2. Ignoring the importance of lubrication
Lubrication is a very important part of roller chain maintenance. Some users may think that only occasional lubrication is enough, but in fact, good lubrication can significantly extend the service life of the chain and reduce failures
. The correct approach is to regularly check and maintain sufficient lubricating grease to ensure that the lubricating grease can be evenly distributed in the gap of the chain hinge
3. Inadequate cleaning and maintenance
Cleaning and maintenance of roller chains are equally important, but often overlooked. Dust, oil and rust on the chain will affect the lubrication effect and aggravate wear. Therefore, it is necessary to regularly clean the dust, oil and rust on the surface of the roller chain coupling and perform rust removal.
4. Bearing inspection and replacement are not timely
Bearings are vulnerable parts in roller chain couplings and need to be checked for wear regularly. If the bearing is not flexible, the noise increases or the temperature is too high, it should be replaced in time to avoid causing greater failures
5. Ignoring the alignment and wear of the sprocket
Alignment and wear of the sprocket are also common misunderstandings in maintenance. If the sprocket is not aligned, it will cause the chain to wear too quickly or even derail. Therefore, the working surface of the sprocket teeth should be checked frequently. If it is found that the wear is too fast, the sprocket should be adjusted or replaced in time.
6. Improper chain selection
Choosing the right chain is crucial to the performance of the transmission system. Some users may choose a chain with too large a pitch, which may cause the chain to jump teeth or derail. Therefore, the selection of the chain should be determined according to the actual working conditions and load requirements.
7. Ignoring environmental factors
When using roller chains in harsh environments, ignoring protective measures is also a misunderstanding. For example, when encountering rain and snow outdoors, oil will be lost, causing chain corrosion. Therefore, appropriate protective measures should be taken, such as installing covers.
By avoiding these common maintenance misunderstandings, you can ensure the effective operation of the roller chain and extend its service life. Proper maintenance can not only improve transmission efficiency, but also reduce the failure rate, thereby saving maintenance costs.
Post time: Nov-27-2024