Gears enable the ball mill to operate normally and usually have a life span of more than 12 years. However, in the actual production process, most ball mill gears can only last for 5-8 years, and some are not even used for 4 years, which increases the maintenance cost of the ball mill.

So what should be done to reduce the gear wear of the ball mill?

1. Improve the hardness of ball mill gears

In the process of manufacturing gears, some manufacturers will cancel the internal stress elimination processing process for various reasons, causing the gears to deform during the production process.

At the same time, ball mill gears usually use end face pressure sealing, resulting in insufficient sealing. After long-term operation, a lot of dust and impurities will enter the gear end face, resulting in a greatly reduced lubrication effect.

Solution

1. Use cold work hardening to strengthen the gear surface to enhance the wear resistance of the tooth surface.

2. Add a sand-blocking function to the large gear cover, and also improve the sealing structure of the lining bolts to provide a sealing effect.

2. The installation and maintenance of ball mill gears must be in place

If the ball mill is running under load, the gear surface contact will be too large, thereby accelerating gear wear. And if the newly installed ball mill gear is not handled well during the running-in period, it will directly cause severe wear.

Solution

1. Installation should be carried out in strict accordance with the rules and regulations. At the same time, good running-in should be carried out in the early stage of installation. After running-in, the new oil should be replaced and the gears and oil pool of the ball mill should be cleaned.

3. The post-maintenance of ball mill should be in place

If the ball mill works for a long time under poor environmental conditions, it will cause accelerated aging of the components. In addition, if the ball mill has no oil or lacks oil, dry friction will occur and the wear of the gears will increase.

Solution

1. The use of lubricating oil can effectively ensure the normal operation of the ball mill and also has the effect of reducing noise.

2. It is also essential to increase daily maintenance work. The gears must be cleaned and dirtied in time to extend the life of the gears.