Factors of gear wear of ball mill

According to the investigation, when the ball mill is in operation, most of the components are running very well, except that the large and small gears of the ball mill are frequently worn out, and the scrap rate is very high, which increases the production cost. So what causes the gear wear of the ball mill?

1.   Poor lubrication conditions: In actual operation of the ball mill, the lubrication effect of the gear lubrication points is not ideal, because as the gear rotates or the speed increases, most of the grease does not enter the gear surface under the action of centrifugal force. It was thrown to the gear cover, and dropped onto the surface of the gear in the vibration of the gear cover, and was still directed to the gear cover, and finally fell to the bottom of the gear cover. As a result, the gear meshing parts have poor lubrication conditions, and dry friction or boundary friction will occur at the local meshing points of the tooth surface, causing serious wear and failure of the gear surface.

2.  Frequent slurry leakage of the equipment: During the operation of the ball mill, due to improper operation or improper maintenance, there is a slurry leakage in the ball mill, and the slurry enters the gear without being cleared in time, causing the gear to wear; or the threaded hole at the hole cover of the ball mill is leaking. Pulp, causing gear wear.

3.  Poor sealing performance: If the performance of the sealing element of the ball mill is too poor, a large amount of debris will enter the grease during operation, such as excessive mineral pulp, powder particles and other impurities. As a result, the gear lubrication conditions are worse, aggravate the wear of the gear, shorten the operating life of the gear, and increase the user’s production cost.

4.  The installation accuracy cannot be achieved: Although the ball mill has a simple structure and high manufacturing and installation accuracy requirements, when installing the gear of the ball mill, the manufacturing process and installation methods must be emphasized. If the lubricating oil is not added in time during installation to relieve the friction of the installation, the wear will be increased and the service life of the ball mill gear will be short.