棒材加热炉液压系统控制油路的改造设想

Improvement plan for oil circuit control of hydraulic pressure system of bar heating furnace

以加热炉步进梁正循环为例 ,阐述了三个主要电液换向阀的结构及动作原理 ;并详细分析其每一动作中控制油路压力油的变化情况 ;说明了将控制油路由“外控”改为“内控”

Taking normal circulation of heating furnace walking beam for example, the structure and operating principle of three main current change valves are raised with the emphasis on the pressure oil change under each action. It shows that the system can still be in normal work when the oil circuit control is changed from the external to internal.