分析了V型推力杆的受力及运动情况，介绍了获取V型推力杆实际受力的 方法，提出了初步的试验 方法。

The stress and movement situation of V propelling rod are analyzed. The method of getting V propelling rod actual stress is introduced. The preliminary testing method is proposed.

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阀杆、塔型盖、格兰通过填料压紧密封，阀杆与执行机构通过固定于支架上的推力螺母实现上下运动。

A valve body is connected with a tower cover through soft seal, and pressed by a bracket through a bolt. The valve rod, the tower cover and a gland are pressed and sealed by filler.

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