Due to the high load on the reducer, vibration at half the fundamental frequency is severe
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Hello, we have an variable-frequency gear pump; whenever the load increases during production, the reducer and its motor experience significant vibration. The motor operating frequency is 40HZ, the fault frequency is 20HZ, and the amplitude is 7.152mm/s. I would appreciate it if experts could help analyze why vibration at half frequency increases when the production load rises. Could this be related to the excitation of the pump base’s natural frequency, or is there some other reason? Thank you very much!
It is recommended to conduct a disassembly inspection to check for any issues with the foundation installation. The problem basically lies in these two options; it’s worth giving it a try.
Thank you. It’s quite difficult to disassemble it; there are no spare units for the key equipment. We need to confirm this in these two aspects