现货供应德国Rexroth力士乐比例阀DBETRE-2X/80G24K31A1M

一、力士乐叶片泵产生前冲原因分析

1、力士乐叶片泵流速变化太快，流速突变引起泵的输出压力突然升高，产生冲击。对出口节流系统，力士乐叶片泵压力的突升使油缸进油腔的压力突升，更加大了出油腔压力的突升，冲击较大。

2、速度突变引起压力突变造成冲击。对出口节流系统，后腔压力突然升高，对进口节流系统，前腔压力突降，甚至变为负压。

3、出口节流时，力士乐叶片泵的定差减压阀来不及起到稳定节流阀前后压差的作用，瞬时节流阀前后的压差大，导致瞬时通过调速阀的流量大，造成前冲。

力士乐叶片泵节流调速阀为什么会有前冲？怎么排除解决呢？

二、排除解决力士乐叶片泵前冲现象的方法

1、采用正确的力士乐叶片泵速度转换方法。电磁阀的转换方式，冲击较大，转换精度较低，可靠性较差，但控制灵活性大。

2、电液动换向阀使用带阻尼的电流阀，通过调节阻尼大小，使力士乐叶片泵速度转换的减慢，可在一定程度上减少前冲。用行程阀转换，力士乐叶片泵冲击较小。

3、经验证明，如将行程挡铁做成两个角度，用30。斜面压下行程阀开口量的2/3，用10。斜面压下剩余的1/3开口，效果更好。

4、或在行程阀芯的过渡口处开1～2mm长的小三角槽，也可缓和快进转工进的冲击。行程阀的转换精度高，可靠性好，但控制灵活性小，管路较复杂，工进过程中越程动作实现困难。

5、在力士乐叶片泵供油回路快进时，用电磁阀使大流量泵提前卸载，减速后再转工进。

6、在出口节流时，提高调速阀中定差减压阀的灵敏性，或者拆修力士乐叶片泵减压阀并采取去毛刺清洗等措施，使其运动灵活。

德国Rexroth力士乐比例阀

原装，质量保证，部分型号现货

DBET-3X/100G24K4       DBET-3X/200G24K4 

DBET-3X/315G24K4       DBET-3X/315G24K4-152 

DBET-3X/315G24K4V      DBET-3X/315YG24K4V  

DBET-3X/50G24K4        DBET-3X/50YG24K4  

DBET-5X/100G24K4M      DBET-5X/100G24K4M-1  

DBET-5X/100G24K4M-27   DBET-5X/100G24K4V 

DBET-5X/100G24NK4M     DBET-5X/100G24NK4M-1 

DBET-5X/100G24NK4V     DBET-5X/100YG24NK4M-1  

DBET-5X/200G12K4M-1    DBET-5X/200G24K4M 

DBET-5X/200G24K4M-1    DBET-5X/200G24K4V-24 

DBET-5X/200G24K4V-27   DBET-5X/200G24N9K4M 

DBET-5X/200G24N9K4M-1  DBET-5X/200G24NK4M-1 

DBET-5X/200YG24K4M-1   DBET-5X/200YG24N9K4M-1 

DBET-5X/315G12K4M-1    DBET-5X/315G24K4M 

DBET-5X/315G24K4M-1    DBET-5X/315G24K4M-27 

DBET-5X/315G24K4V      DBET-5X/315G24K4V-1 

德国Rexroth力士乐比例阀

原装，质量保证，部分型号现货 

DBET-5X/315G24K4V-23   DBET-5X/315G24N9K4M  

DBET-5X/315G24N9K4M-1  DBET-5X/315G24N9K4V-1 

DBET-5X/315G24NJM      DBET-5X/315G24NK4M  

DBET-5X/315G24NK4M-1   DBET-5X/315G24NK4V 

DBET-5X/315G24NK4V-1   DBET-5X/315YG24K4M-1 

DBET-5X/315YG24K4V-1   DBET-5X/315YG24NK4M-1 

DBET-5X/315YG24NK4V-1  DBET-5X/350G24K4M 

DBET-5X/350G24K4M-1    DBET-5X/350G24K4M-26 

DBET-5X/350G24K4M-27   DBET-5X/350G24K4V 

DBET-5X/350G24N9K4M    DBET-5X/350G24N9K4M-1 

DBET-5X/350G24NK4M     DBET-5X/350G24NK4M-1 

DBET-5X/350YG24K4M-1   DBET-5X/350YG24N9K4M-1 

DBET-5X/350YG24NK4M-1  DBET-5X/400G24K4M-8 

DBET-5X/400G24K4V-8    DBET-5X/400G24N9K4M-8 

DBET-5X/400G24NK4M-8   DBET-5X/400YG24NK4M-14 

DBET-5X/50G24K4M       DBET-5X/50G24K4V  

DBET-5X/50G24K4V-1     DBET-5X/50G24NK4M  

DBET-5X/50G24NK4M-1    DBET-5X/50G24NK4M-16  

DBET-5X/50YG24K4M-1    DBET-5X=315G24K4M=DE 

DBET-6X/200G24K4V      DBETB-1X/180G24K4M 

DBETB-1X/230G24K4M     DBETB-1X/230G24K4M-551 

DBETB-1X/25G24K4M      DBETE-6X/200YG24K31F1V

DBET-6X/200YG24K4V     DBETE-6X/200YG24K31A1V

德国Rexroth力士乐比例阀

原装，质量保证，部分型号现货 

DBETE-6X/315YG24K31A1V   DBETE-6X/315G24K31F1V

DBETE-6X/200G24K31F1V    DBETE-6X/350G24K31A1V

DBETE-6X/315G24K31A1V    DBETE-6X/200G24K31A1V

DBETE-6X/100G24K31A1V    DBETE-6X/50G24K31A1V

DBET-5X/400G24N9K4V-8    DBET-5X/200YG24K4M-1

DBETR-1X/315G24K4V-437   DBETR-1X/350G24K4V-409

DBETR-1X/80G24K4V        DBETE-5X/315G24K31M-1

DBET-5X/315G24K4M-1      DBETE-5X/250G24K31M

DBETE-5X/250G24K31M-1    DBETE-5X/315YG24K31M-1

DBETE-5X/100G24K31M      DBET-5X/315YG24K4M-1

DBETE-5X/315G24NK31M-1   DBET-5X/315G24K4M

DBET-51/V-16             DBETE-5X/315YG24K9M-1

DBETE-5X/50G24K31M       DBETR-1X/180G24K4V-575

DBETB-1X/230G24K4M-551   DBETR-1X/230G24K4M-409

DBETR-1X/25G24K4M        DBETR-1X/180G24K4M

DBETB-1X/180G24K4M       DBETR-1X/315G24K4M

DBETR-1X/230G24K4M-381   DBETR-1X/180G24K4M-381

DBETBX-1X/180G24-16K4M   DBETX-1X/180G24-8NZ4M

DBETBX-1X/180G24-37Z4M   DBETBEX-1X/180G24K31A1V

DBETBEX-1X/315G24K31F1M  DBETBEX-1X/80G24K31F1M

DBETBEX-1X/180G24K31F1M  DBETBEX-1X/315G24K0B5M

DBETBEX-1X/250G24K31A1M  DBETBEX-1X/80G24K31A1M

DBETBEX-1X/180G24K31A1M  DBETBEX-1X/315G24K31A1M

德国Rexroth力士乐比例阀

原装，质量保证，部分型号现货 

DBETX-1X/180G24-25NZ4M-36  DBETX-1X/25G24-25NZ4M-36

DBETX-1X/350G24-25NZ4M     DBETX-1X/50G24-8NZ4M

DBETX-1X/250G24-25NZ4M     DBETX-1X/50G24-25NZ4M

DBETX-1X/315G24-25NZ4M     DBETX-1X/180G24-25NZ4M

DBETX-1X/80G24-25NZ4M      DBETX-1X/250G24-8NZ4M-34

DBETX-1X/250G24-8NZ4M-35   DBETX-1X/180G24-8NZ4M-34

DBETX-1X/250G24-25NZ4M-39  DBETFX-1X/80G24-27NZ4M

DBETFX-1X/180G24-27NZ4M    DBETFX-1X/250G24-27NZ4M

DBETFX-1X/315G24-27NZ4M    DBETX-1X/250G24-8NZ4M

DBETX-1X/80G24-8NZ4M       DBETX-1X/315G24-8NZ4M

DBETBX-1X/80G24-16Z4M      DBETBX-1X/230G24-16Z4M

DBETBX-1X/28G24-37Z4M      DBETBX-1X/25G24-16Z4M

DBETBX-1X/80G24-37Z4M-38   DBETBX-1X/315G24-37Z4M-38

DBETBX-1X/315G24-37Z4M     DBETBX-1X/250G24-37Z4M-38

DBETBX-1X/315G24-16Z4M     DBETBX-1X/180G24-16Z4M-37

DBET-6X/420G24K4V          DBET-5X/350G24K4V-1

DBETE-6X/420YG24K31A1V     DBETE-6X/200G24K31A1M

DBET-5X/150G24K4M-32       DBET-6X/100YG24K4V

DBET-6X/315YG24K4V         DBET-6X/350YG24K4V

DBET-6X/50YG24K4V          DBETE-6X/350YG24K31A1V

DBETE-6X/100YG24K31A1V     DBETE-6X/50YG24K31A1V

DBETE-5X/100YG24K31M-1     DBETE-6X/50G24K31A1V=DE