One end of a connecting rod on both sides of the screw nut is connected with the pin of a sliding chassis, and the other end is hinged with the screw nut.

螺母两侧的连接杆一端与滑动机架上的销轴连接，另一端与螺母铰链。

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Pre-tight force of connecting rod screw;

考虑连杆螺钉的作用；

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