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 gearcasing.
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。
2
Finite element analysis for constraint model was conducted on the gear box casing of 7ypj agricultural tricar using modal analytic theory according to its structural characteristics.
针对7ypj型农用三轮汽车齿轮箱体的结构特点，应用模态分析理论对其进行了约束模态的有限元分析。
3
The casing of the electricity generating gear box covers the driving shaft.