Causes of belt pulley wear
2022-11-23
Those who often use the pulley know that as a cast iron, the pulley is easy to rust. At this time, many friends asked me whether the belt pulley was rusty and affected the use? Will rust on the pulley surface accelerate belt wear? For this problem, I can tell you for sure that the rust on the pulley surface will not affect the use, nor accelerate the wear of the belt.
As long as you pay attention to the observation, it will be found that the groove of the belt pulley in use will become brighter with the frequent use, and the belt only contacts the groove of the belt pulley. Of course, the rust on the surface of the belt pulley has nothing to do with the wear of the belt.
Causes of belt pulley wear:
1. The belt is normally worn and has a life cycle. The use of the belt should be checked and replaced regularly.
2. Belt pulley quality problem: if there are many belt pulley trachomas, the belt may be affected.
3. Installation problem: The improper installation of the engine pulley and belt will also affect the belt.
4. Working environment problem: local pulley runout or abnormal operation due to poor working conditions requires maintenance
Rust removal and rust prevention methods for belt pulley: The rust removal methods for belt pulley mainly include physical and chemical methods. The rust prevention methods include adding protective layer and isolation layer.
1. Physical methods include: manual rust removal, mechanical rust prevention, shot blasting, spraying, etc.: mainly by physical means of collision, knocking, shoveling, grinding, scraping, etc. The more bright the frequently used belt pulley groove is, the more it belongs to physical rust removal.
2. Chemical treatment method: the chemical treatment method is also called acid washing method. Its principle is to use the acid solution to react with the rust (oxide) on the cleaned metal surface to dissolve it in the acid solution. In addition, hydrogen generated by the interaction of acid and metal causes the oxide skin to fall off mechanically
3. There are many ways to prevent the belt pulley from rusting, such as smearing oil on the belt pulley, blackening the belt pulley by boiling, phosphating, and painting.
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