Cracking in the keyway of the metering pump motor
Thread Content
The motor slot of the metering pump is cracked, and there are cracks at the connection between the worm and the motor keyway. What could be the causes? It’s easy to turn the pump manually
For one reason, “management is inadequate.” It’s unreasonable to not have noticed it was in such a poor condition. The initial reason was likely an excessive clearance during installation; this clearance gradually increased, getting larger and larger, until damage occurred. Ultimately, it should be attributed to inadequate production management.
There might be sticking at some point; if there are real-time records of the current, those can be checked.
Agreed, it’s the truth! ! ! :handshake
In-depth analysis on Floor 2~~! This fault is most likely as mentioned on the 2nd floor~~~
There must be some abnormal noises, but they weren’t noticed; it wasn’t until the shafts were completely worn out that it was discovered
The pipeline pressure is too high, and there are also issues with the quality of the motor. According to the barrel theory, the shortest plank determines the amount of water that can be stored; by the same logic, in a mechanical device, the weakest part is also the one most likely to fail. It is recommended to install a pressure gauge on the pipeline to measure the pipeline pressure first. Under high pressure, the machine itself is prone to problems, and the motor shaft is precisely the weakest part, which is why it fails first. I have been on site before and encountered this issue as well. Under high pressure, the most common problems with general metering pumps are membrane rupture, bearing failure, and motor burnout. There are also many situations that cause high pressure; the first is excessive pipeline pressure or head, and the second is a blockage at the outlet.