During these special times, I’m bored; let’s post a calibration issue for everyone to discuss
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2 days before the New Year, I helped another team repair the equipment on the workbench; there were no other issues, with the vibration value ranging from a maximum of 7.5 to a minimum of 4. 2. First, check the table; the motor has over 60 steps. There are 40 openings at the bottom. Here’s the problem: the motor is tall but no padding has been used, and there are issues with the foundation. 2 This device can only be repaired after the New Year, so for now it can only be fixed as much as possible to keep it in use as a backup. Let me first mention the vibration values after my adjustments: the maximum vibration value for the motor is 1.2, and that for the pump is 1.7. It fully meets the requirements for backup. So what should I do?
I have encountered similar problems: poor grouting of the pump foundation, with water freezing inside and causing the motor to rise, or the foundation of the pipelines rising, which leads to poor alignment of the pump.
The original intention of posting this is to discuss whether aligning the axial or radial direction is more important. After all, real-world alignment isn’t that straightforward; the motor screws are limited, preventing movement to the left or right. This is all common.
This post was last edited by pqdb121 on 2020-1-30 at 12:31. I chose to preserve the radial option. After final alignment, the motor is 2 units high. I’ve forgotten how much the lower opening is. It seems to be in the 80s. During testing, the maximum vibration value of the motor was 1.2, while the maximum vibration value of the pump was 1.7. It is estimated that the cushion needs to be replaced after a little over 2 months
If the foundation frequently changes, a non-contact coupling can be considered, allowing alignment errors of up to 1 mm.
Various issues arise in centering and alignment; the situations vary, and so do the solutions. This issue can be resolved by centering it in the reverse direction: lift the host unit slightly and then try to center it again; this way, there is room for adjustment between the motor and its base. It’s quite troublesome