时间：2013-11-20 09:03　作者：admin　点击： 次

1. The purpose of finding the center of the coupling:
Let the centerline of one rotor shaft be the continuation curve of the shaft centerline of the other rotor.
2. Conditions for finding the center of the coupling:
1) Make the centers of the two pairs of wheels coincide, that is, make the outer surfaces of the two pairs of wheels concentric.
2) Make the joint surfaces (end surfaces) of the two pairs of wheels parallel (the center lines of the two shafts are parallel).
To measure the coincidence of the centers of the two pairs of wheels and the parallelism of the end faces, the following methods can be used:
先在某一转子的对轮外圆面上装一工具（通称桥规），供测外圆面偏差之用；然后转动转子，每隔90度测记一次。共测出上、下、左、右四处的外圆间隙b和端面间隙a，得出b1、b2、b3、b4和a1、a2、a3、a4,再将其结果记下。
If the measured value is: a1=a2=a3=a4, it indicates that the end faces of the two pairs of wheels are parallel;
b1=b2=b3=b4, it means that the two pairs of wheels are concentric.