Deep water hydraulic rope scissors structure and working principle is discussed and theory of the manual rotational commutating valve is illuminated in this thesis.

• 介绍了深水液压软缆割刀的组成及工作原理,说明了手动旋转换向阀的原理,对剪切机构进行了优化设计,分析了割刀的剪切能力。