Coupling alignment
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I have a question: what is the state of the two halves of the coupling when it is being aligned? Is it already connected? If so, how do I adjust it?
The two couplings have been secured, and the pump has also been fixed; if there is misalignment, simply adjust the motor! !
But how can it be adjusted if it’s fixed? Is it through coupling compensation?
The couplings are separated from each other when aligned. Yes, in order to ensure the accuracy of the measurement points, devices of a lower grade are used to maintain rotational synchronization, provided that this does not affect the accuracy of the data.
The last edit to this post was made by shashaloveyou99 on 2016-12-13 at 10:30. It’s the motor that needs adjustment; the pump coupling is fixed, while the motor coupling is tilted to the left, so the motor needs to be adjusted to the right； If the motor coupling is offset, add a stainless steel gasket to the motor! You need one coupling to be fixed, and then adjust the other movable object, so that the two can be aligned! Small motors can be adjusted with a rubber mallet, while larger motors usually come equipped with adjustment screws!
Once it’s aligned, just reconnect the two halves of the coupling, right?
I saw that when the technician aligned them, the couplings were already connected; I can simply measure the axial and radial deviations and adjust the motor. Is that okay?
The coupling can be connected or not; it’s not necessary to use it, as long as the outer edge of the coupling maintains a smooth surface. It can remain disconnected or connected, and this does not affect alignment. What matters is the coaxiality between the rotor of the motor and that of the pump, and this has no direct relation to the compensating function of the coupling. The coupling’s compensating role is used as a remedy when there are deviations in alignment