论文部分内容阅读
从日本引进的S100型掘进机具有八十年代初的世界先进水平,它的液压系统采用了先进的负载反馈式多路换向阀,这是一种新型的节能阀。负载反馈阀的工作原理如下图所示。它
Introduced from Japan, S100 boring machine has the world’s advanced level in the early 1980s. Its hydraulic system adopts advanced load feedback multi-way directional control valve, which is a new energy-saving valve. Load feedback valve works as shown below. it