This paper introduces the application of double locking clippers for a closed forging die to solving the problems Such as getting stuck and fatigue fissure caused by a gear forging die.

针对齿轮锻模极易发生卡模和断裂失效的情况，提出对闭式锻模采用双锁扣的结构方案。

Locking bar system, for heavy doors the rod is supplied undivided. Both ends can be connected to the gear mechanism. This allows any positioning of the gear casing.

锁拉杆系统，重型门用。交货时拉杆不分开。两端可与齿轮机构连接，这样便于齿轮壳的任何定住。

The sound you just heard is the landing gear locking into place.

刚才你们听到的是飞机起落架放下的声音。

The use of worm gear reducer, not only with self-locking butterfly board so that board butterflies stop at any position on, but also to improve the valve performance.

采用蜗轮减速器，不仅可以使蝶板具有自锁能力，使蝶板停止在任意位置上，还能改善阀门的操作性能。