coupling pin

基本解释

Installed on the same base, the motor drives the hammermill rotor, which has been tested by dynamic balance, through the transmission of a dowel-pin coupling;
电动机与粉碎机转子安装在同一底座上，采用柱销联轴器传动，转子经动平衡校验；
A tie bolt (36) axially projects beyond the free end of the coupling pin (24) and engages, in the coupled state, in a cavity (38) that is adjacent to the seat (18).
该接口还配有一个沿轴向超出耦联轴颈（24）的自由端的拉紧栓（36），该拉紧栓在耦联的状态中时嵌入一个邻接支座（18）的空腔（38）内；
ip.com
In order to achieve a parallel reflection beam for an efficient coupling and collimation to PIN-TIA, a novel structure design of a double single mode fiber core and self-focus lens is presented.
通过创新设计单模光纤双芯插针和自聚焦透镜的结构，解决了透过密集波分复用滤波片后的反射光偏离轴线带来的耦合问题。

Trailers are typically attached to tractors by a "fifth wheel, " in which a coupling pin on the trailer fits into the center of a large horseshoe-shaped piece of metal.
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