摘要
对于长行程大直径多缸液压系统,选择恒压变量泵与定量泵组合作为系统动力源,兼顾经济型和节能特性。主缸上升采用差动连接,减小了装机容量。选用先导式比例方向阀控制上芯模液压缸、下芯模液压缸及主缸,既满足长行程液压缸快速运动要求,又达到各液压缸精确定位、防止机械撞击的目的。
For large diameter long stroke multi-cylinder hydraulic system, constant pressure variable pump and quantitative pump combination were taken as hydraulic system power to satisfy economical and energy-saving features.Differential connection was used when the master cylinder was rised, so installed capacity was reduced.Pilot proportional direction valve was used to control up core mould hydraulic cylinder, down core mould hydraulic cylinder and the main cylinder.The requirements of long-stroke hydraulic cylin-der fast movement are met, the purposes of accurate positioning of each hydraulic cylinder and preventing mechanical impact are a-chieved.
出处
《机床与液压》
北大核心
2016年第8期34-36,共3页
Machine Tool & Hydraulics
关键词
节能型液压动力源
长行程大直径液压缸控制
硫化机
Energy-saving hydraulic power source
Control to large diameter long stroke hydraulic cylinder
Bladder vulcanizer
