Install the conventional pumping water pump, motor stator in height and vertical concentric adjustment after passing the unit rotating parts installation; swing in unit axis adjustment qualified after the first turning adjustment thrust level, then turning fixed axis of rotation center unit (water guide bearing nest for reference).
This installation method will make the adjustment error, when perpendicular to the tilt axis deviation and concentric thrust bearing horizontal deviation caused by the deviation is larger, the accumulation of air gap deviation may exceed the standard requirements of the average air gap. This is the last installation works often in the final measurement of air gap exceeded, and had to rework the stator to adjust the vertical concentric reasons.
Thus, swing qualified in the adjustment of the unit axis, without turning thrust level adjustment, but to adjust the motor air gap around the uniform, tolerance does not exceed the average air gap, and then adjust the turning thrust level, the water pump bearing unit in the axis of rotation of the heart nest as the base, a rotation axis of operation center be made one. To adjust thrust level and turning unit. The vertical deviation of the axis of the unit and the vertical deviation of the center of the stator can cancel each other, so as to ensure that the air gap deviation is in the range of the average air gap, and the workload of installation and adjustment is not increased. This new installation method is not only in theory but also in practice.
After the installation of the conventional method, the measurement of air gap deviation is far beyond the specification requirements. Therefore, to adjust the air gap around the uniform, then turning adjust thrust level, make the unit axis tilt guide shaft located in the water nest center, the axis of rotation of the central fixed set, then continue the installation and operation guide bearing clearance adjustment. This not only ensures that the air gap deviation is less than the average air gap, but also greatly reduces the re adjustment of the vertical concentricity of the stator and other rework operations.
