Help needed
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Could you please tell me what causes can be determined from the cross-section of the broken shaft of this vacuum pump? Is it fatigue fracture? The shaft breakage occurred at the shoulder of the shaft near the impeller; it would be advisable to have a professional conduct an analysis and provide an explanation. I hope professionals will not hesitate to offer their guidance.
As for broken shafts, they are mostly caused by fatigue. But the cause of metal fatigue is the main reason for shaft breakage. A factor that is often overlooked is the vibration caused by insufficient prestress at the connection points of the foundation; bearing damage, imbalance in dynamic balance, misalignment of couplings, and issues related to the parallelism of openings can all be causes of shaft breakage.
Dividing the cross-section into two zones results in fatigue fracture
Is it possible to provide an analysis and explanation of the cross-section in the image?
As for broken shafts, they are mostly caused by fatigue
Thanks for sharing; I’m a newcomer, so I’ll take the chance to learn a bit*
The cause of the fracture has been identified; thank you all
This is fatigue fracture; there have been many analyses of the causes on the second floor. More information would be available if there were a complete image of the pump shaft. However, it is certain that preventive maintenance should be strengthened during the use of the pump.