What does the alignment result of the pump and motor coupling mean? Someone with expertise, please explain
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This post was last edited by qy576100527 on 2017-7-1 06:33. Results of pump alignment – someone knowledgeable please explain what this means
1\ The rotational diameter of the timing coupling mounting table is not provided, so it is impossible to calculate the axis inclination. 2\ The runout of the impeller is beyond the specified limits. 3\ The radial runout at the sealing area is beyond the specified limits
What strange data record; I can’t understand it.
Waiting for an expert to explain: what is the initial value of this data, of this table?
I don’t know; there’s just this photo
What kind of weird data is this? There are only 100 divisions on one full turn of a dial indicator – where do the numbers 192, 190, 188, and 189 come from? Does the dial indicator start recording readings before it returns to zero? How can there be any play when aligning? Are you sure this is the alignment data? Rather than the side clearance of the compressor piston? What does he write about the shaft and the pump casing? It’s not concentricity data either; only double-support pumps require concentricity adjustment, while cantilever pumps do not. In summary: what kind of pump is this exactly? What kind of advanced equipment is he using for alignment?
I can only make an estimate: 1, it’s probably the pulsation of the pump, or the clearance between the impeller and the pump casing； 2. Radial clearance of the sealing chamber ； 3. 1/234 of the side clearance should represent the inner and outer clearances before and after the impeller; it is evident that this is a single-impeller pump ； 4. This confirmation refers to the coupling alignment data: the outer circle corresponds to radial runout, while the inner part relates to end face runout
3. 1/234 of the side clearance should represent the inner and outer clearances before and after the impeller; it is evident that this is a single-impeller pump； Looking at the dimension data for targets 1, 2, 3, and 4, the clearance between components such as sealing rings shouldn’t be less than 10; otherwise, the rotor will come into direct contact and get stuck. I don’t know what the data is. I’ve also never seen such marked centering data before
Is the data eccentric data? I’ve seen such a Goryeo-style one for the first time. Previously, it was understood that motors and pumps had to be concentric, “on the same axis””