液压挖掘机回转节能装置

• 作 者: 李建启 张传福 汪铁荪
• 机 构: 河北建筑工程学院,重庆建筑工程学院,重庆建筑工程学院
• 出 处: 工程机械
• 发表日期: 1991年02期
• 关键词: 液压挖掘机 能量消耗 蓄能器 功率损失 液压泵 工作循环 回转运动 冷却措施 液压系统 回收能量

1 问题的提出液压挖掘机的每一个工作循环中,回转运动约占50%～70%,能量消耗占25%～40%,发热量约占系统总发热量的35%～40%。以往的回转油路只考虑实现功能,未能注意节约能量,造成回转过程能量损失很大,增加了系统的热负荷。为此而采取的冷却措施又增加了额外的能量消耗,形成能耗的恶性循环。

1 Problem Proposed hydraulic excavator every working cycle, about 50% to 70% slewing motion, energy consumption accounted for 25% to 40%, the heat about the total system heat 35% to 40%. In the past, the rotary oil circuit only considered the realization of functions and failed to pay attention to saving energy, resulting in a large energy loss during the rotation and increasing the system’s heat load. The cooling measures taken for this have added additional energy consumption and created a vicious cycle of energy consumption.