实践证明，新设计的旋转模头系统行星齿轮减速器可靠性好使用寿命长，为生产装置的正常运行起到了极为重要的作用。
It was proved by practice that the newly designed speed reducer had a good reliability and long service time, which exerted great significance for normal operation of the producing plants.
介绍顶管掘进机截割传动装置所采用的行星齿轮减速器，论述行星齿轮减速器的结构特点。
This paper introduces the epicyclic reduction arrangement applied in cutting drive mechanism in pipe jacking, analyses the construction and characteristics of epicyclic reduction arrangement.
三环式齿轮减速器是在普通少齿差行星减速器基础上开发的一种新型传动装置，应用前景广泛。
Three-ring reducer is a new transmission device which develops in the foundation of few tooth difference planet reducer, its application prospect is wide.
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