In the structure design of gear chamber casing, strengthen rigidity and reducing weight were contrary.
在正时齿轮室盖的结构设计中，增强刚度和降低重量是相互矛盾的。
By the use of a finite element method the authors have calculated the stress and rigidity of a main reduction gear box case body for a certain type of cement mill.
应用有限元法对某型水泥磨机主减速齿轮箱箱体的应力和刚度进行了计算。
Out-of-mesh trouble in 4th gear was found in actual usage, but the trouble is solved by changing the synchronizer structure, increasing the rigidity of the synchronizer gear sleeve and etc.
在实际使用中，存在四挡脱挡故障，通过采取改变同步器的结构、增强同步器齿套的刚度等措施，该问题已得到解决。
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