是一个滑动配合联轴器，连接管或管道的外直径。
The solid sleeve is a slip fit coupling that fits the outside diameter of the tubing or fitting.
为了补偿轴向位移，经常在双十字万向联轴器的中间轴上采用轴向滑动装置。
In order to compensate axial displacement, an axial sliding mechanism is often used in the intermediate shaft of a double universal joint.
该双头 轴输出端配设有钻夹，双头轴的输入端能与联轴器相滑动配套连接；
The output end of the double drill shaft is provided with a boring clamp. and the input end of the double drill draft can be in sliding and matching connection with the coupling.
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