汽轮发电机组轴系转子联轴器同轴度和端面平行度的调整，是机组安装、检修过程中一个极其重要的环节。汽轮机运行时，由于支撑轴承的磨损、汽缸和轴承座的位移、轴承垫圈的腐蚀等方面的原因，导致了汽轮发电机组轴系中心会发生同轴度偏差。若偏差过大会产生支撑轴承磨损使轴承温度升高，造成个别支撑轴承负荷过重使机组振动超标、动静部件发生碰擦等故障，所以在检修时一定要对汽轮发电机组轴系联轴器中心进行检测、调整。%The coupling alignment in the shaft-rotor system is a very important link during the steam turbine units’ instal ation and overhaul. When the units operate continuously, due to the babbit bearing wear, cylinder displacement, corrosion of bearing pads etc, the centre-of-gravity of the shaft is shifted. If its center-of-gravity shifts a lot, the babbit bearing wear can result in its tempera-ture rise or the overload of the bearings, so that the vibration of the turbine units and the impact-rubbing of the rotor and stator parts could occur in the operation. Therefore, it is important to align the coupling perfectly.
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