XCG2V-8FW-10

武穴黎翔机电设备有限公司，询价：何琴

询价：，    

询价

询价: , 

防止空气进入液压系统的方法是： 
①吸油管和回油管应插入油面以下，并且保持足够的深度； 
②系统中各部分应保持充满油液，办法是在液压泵的出口处安装一单向阀，回油路上设置背压阀； 
③油箱的油面要尽量大些，吸入侧和回油侧要用隔板隔开，以达到消除气泡的目的； 
④在管路及液压缸的zui高处设置放气孔，在起动时应放掉其中的空气； 
⑤应保持管接头的良好密封，特别是吸油管路，若密封不好，空气便被吸入液压系统。 

3.防止油温过高 
工程机械液压系统油液的工作温度一般在30度到80度范围内较好，油温过高对系统会产生一系列不良影响，如粘度下降，泄漏增大，容积效率下降，造成液动速度不稳定，会造成热膨胀系数不同的运动幅之间间隙变化，甚至出现卡死等，会使油液变质，密封件老化，丧失密封性能等。 油温升高的原因多种多样，如油箱容积太小，散热面积不够，油箱储存油量太少，周围环境气温较高，冷却器作用失灵；系统中没有卸载回路，在停止工作时油泵仍在高压溢流；油管太细太长，弯曲过多，压力损失过大，元件加工精度不高，相对运动件摩擦发热过多等。 

从使用维护角度来看，应注意以下几个问题： 
①经常保持油箱中的正确油位，以使油液有足够的循环冷却油； 
②经常保持冷却器内水量充足，管路畅通； 
③在系统不工作时，油泵必须卸载； 
④正确选择油液的粘度。 

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02-326007    EEA-PAM-571-A-32
507848    线圈
507833    线圈 110V双电压
507834    线圈 220V双电压
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