HAWE负载敏感比例阀.doc

文档介绍：Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
负我<感型比例多路
阀工作原理介绍
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
・比例多路阀使用目的
・液压基本工作原理
・PSL型比例多路阀基本工作原理
・负载反馈系统的效率
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
・PSL型比例多路阀系统的减震
为什么使用比例多路阀
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
□无级控制，与负栽变化 无关
□多缸组合动作，满足多 个执行元件同时工作
□提富液压糸统放率，减 少发热
□有减振要求，对糸统平 稳性要求高
□需集成性，节约安裳•空 间P减轻整机重量
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
液压糸统基本工作原理
•压力损失原理
•压力控制阀•溢流阀原理
・流量控制阀-节流阀原理
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
•流量控制阀■调速阀原理
管道中的压力损夬
•粘性流体在管道内流动时，都要受到与 流体方向相反的流体阻力，请耗能量， 而以压力反映出来，坎称圧力拐关
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
•压力损失分为：延程压力损失和局部压 力损失
Solutions for a World under Pressure
HYDRAULIK
Solutions for a World under Pressure
HYDRAULIK
延程压力损X
P 0 bar