The end of the hollow shaft is provided with a head (6) to which the tablet (1) is articulated by means of a cam-shaped element (7).
中空轴的端部配备有一头（6），通过一凸轮状元件（7） 将书写板（1）铰接到该头（6）。
2
In this paper, the correct assembly condition for the propeller shaft of an articulated vehicle is analyzed in the view of kinematics.
从运动学观点分析铰接式车辆传动轴的正确安装条件；
3
The articulated beam is structured by an oscillating bearing, a bearing chock and a rigid shaft; wherein the rigid shaft is connected with the bearing chock through the oscillating bearing.