The adjustment of the feedwater pump coupling is one of the important tasks for the installation of the feedwater pump, and its purpose is to make the centerline of the motor shaft and the water pump shaft on the same straight line when the feedwater pump is working. When the deviation between the center lines of the two axes is smaller, the more accurate the adjustment, the better the machine's operation, and the longer the service life. It can be seen that the accuracy of the adjustment is directly related to whether the machine can operate normally for a long time.
 At present, because there is no special suitable tool for adjusting the timing of the feedwater pump coupling, the timing is very difficult, time-consuming and laborious, and the error of the adjustment is usually large, and the vibration of the feedwater pump is high during trial rotation, which seriously affect The equipment operates safely and reduces its service life.
 In view of this, it is necessary to provide a new type of coupling adjustment device that is convenient and easy to use and has a higher adjustment accuracy.

The technical problem to be solved by the utility model is to provide a coupling alignment device, which is convenient and easy to use and has high alignment accuracy.
 In order to solve the above technical problems, the present invention provides a coupling alignment device, the coupling includes a first half coupling part connected to the driving shaft and a second half coupling part connected to the driven shaft A shaft portion, the adjusting device includes a linkage device that links the first half coupling portion with the second half coupling portion, and is fixed to the first half coupling portion and the first half coupling portion. A measuring tool holder on one of the two coupling halves and having a measuring end close to the other of the first coupling half and the second coupling half, and a plurality of measuring tools respectively fixed to The measuring tool of the measuring end is used to measure the deviation of the central axis of the first half coupling part and the second half coupling part.