Siemens SIMOTICS M-1PH8, Руководство по эксплуатации

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Mechanical mounting
4.7 Mounting of rotating unions on 1PH8 hollow-shaft motors
1PH808/1PH810 main motors
Operating Instructions, 04/2017, 610.48004.40f
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4.7.3 Mounting information and instructions
● Do not mount any additional anti-rotation pins on rotor-supported rotating unions.
● Never screw pipes directly to the rotating union.
● Always use a hose between the rotating union and the fixed piping. To do this, route the
hoses in curves and torsion-free.
● First screw the flexible hoses onto the rotor-supported rotating union. Then screw the
rotating union onto the shaft with the specified torque.
● Avoid stressing due to incorrect hose lengths and unsuitable mounting material.
● The rotating union must be easy to turn when mounted.
● Keep rotating unions free of chips and burrs.
● Position the rotating union horizontally in such a way that the leakage connection is at the
lowest point.
● Always route the leakage hose downward at at least 15° with a large cross-section.
● If the leakage hose is higher than the leakage connection and the mechanical seal is
open, the rotating union and possibly also the motor will be flooded. The motor can fail.
● Also route the inlet hose downward. This causes the coolant to flow back in the supply
line when the mechanical seal is open (e.g. tool change or standstill) and not through the
motor shaft and the leakage connection.
● Filter the coolant so that no particles or chips can reach the mechanical seal and
damage it.
Note
Mounting the rotating union
•
During assembly, screw the thread absolutely tightly into the NDE shaft extension.
Ensure that no coolant can leak.
● Check the rotating union and hoses regularly for tightness.