4WRL25V-370M3X/G24Z4M进口力士乐比例伺服阀 德国博世力士乐REXROTH比例阀 比例伺服阀 ****现货

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4WRL25V-370M3X/G24Z4M进口力士乐比例伺服阀

电气比例阀

自动控制可分成断续控制和连续控制。断续控制即开关控制。气动控制系统中使用动作频率较低的开关式(ON-OFF)的换向阀来控制气路的通断。靠减压阀来调节所需要的压力，靠节流阀来调节所需要的流量。这种传统的气动控制系统要想要有多个输出力和多个运动速度，就需要多个减压阀、节流阀及换向阀。这样，不仅元件需要多，成本高，构成系统复杂，且许多元件都需要预先进行人工调节。电气比例阀控制属于连续控制，其特点是输出量随输入量的变化而变化，输出量与输入量之间存在一定的比例关系。比例控制有开环控制和闭环控制之分。

结构原理

输入信号加大，供气用电磁阀先导阀1换向，而排气用电磁先导阀7处于复位状态，则供气压力从SUP口通过阀1进入先导室5，先导室压力上升，气压力作用在膜片2的上方，则和膜片2相连的供气阀芯4便开启，排气阀芯3关闭，产生输出压力。此输出压力通过压力传感器6反馈至控制回路8。在这里，与目标值进行快速比较修正，知道输出压力与输入信号成一定比例为止，从而得到输出压力与输入信号的变化成比例的变化。由于没有喷嘴挡板机构，故阀对杂质不敏感，可靠性高。

伺服阀是-种根据输入信号及输出信号反馈量连续成比例地控制流量和压力的液压控制阀。根据输入信号的方式不同，又分电液伺服阀和机液伺服阀。电液伺服阀将小功率的电信号转换为大功率的液压能输出，实现执行元件的位移、速度、加速度及力的控制。

电液伺服阀由电气一机械转换装置、液压放大器和反馈(平衡)机构三部分组成。

电气一机械转换装置将输入的电信号转换为转角或直线位移输出，常称为力矩马达或力马达。

4WRL25V-370M3X/G24Z4M进口力士乐比例伺服阀

4WRLE 型阀是一种先导式方向控制阀，带有电气位置反馈和车载电子装置 (OBE)。

布局

阀门基本上由 3 个主要组件组成：

先导控制阀 (1) 带控制阀芯和套筒、复位弹簧、控制电磁阀和感应位置传感器（可选配电子保护膜 (5) 和阻尼板 (4)）

带定心弹簧和位置反馈的主阀 (2)

带模拟量 (6) 或 IO-Link 接口的车载电子设备 (OBE) (3)

功能

当车载电子设备 (OBE) 关闭或未激活时，先导控制阀的控制阀芯在“故障安全”位置弹簧操作。主阀的控制阀芯处于弹簧对中偏移位置大约 P 到 B/A 到 T 方向上行程的 6%。

车载电子装置 (OBE) 将****的控制值与主阀控制阀芯的位置实际值进行比较。如果出现控制偏差，将激活控制电磁阀。由于磁力的变化，先导控制阀芯逆着相应的弹簧进行调节。

通过控制横截面激活的流量导致主控制阀芯的调整。主控制阀芯的行程/控制横截面与控制值成比例地调节。在控制值预设为 0 V 的情况下，电子装置将主阀的控制阀芯调整到中间位置。

先导控制阀中的先导油供应可以通过油口 P 内部或通过油口 X 外部。反馈可以通过油口 T 内部或外部通过油口 Y 到油箱。

控制电磁阀关闭

如果出现以下错误，控制电磁阀会被车载电子设备 (OBE) 断电，先导控制阀芯设置在“故障安全”位置并卸载主阀的先导油腔。在弹簧的作用下，主阀控制阀芯将移动到偏移位置（约 6% P → B/A → T）。

低于较低电源电压

仅用于接口“F1”：

低于 2 mA 的较小电流控制值（包括控制值线（电流回路）的电缆断线）。

仅适用于接口“L1”：

启用非活动、通信中断（看门狗）

在内部 IO-Link 错误的情况下

仅用于接口“C6”：

另外启用非活动

阻尼板“D”和电子保护膜“-967”

参见“符号 E. 和 W.”：

注意：

先导式 4/3 方向控制阀仅在主动控制回路中起作用，并且在停用时没有锁定基本位置。因此，在许多应用中都需要“外部隔离阀”，并且必须考虑开启/关闭顺序。当电源电压关闭时，驱动器可能会在功能方向 P 到 B 上短时间加速。

4WRL25V-370M3X/G24Z4M进口力士乐比例伺服阀型号

力士乐REXROTH三位四通高响应换向阀电气位置反馈（LVDT的直流/直流）（结构形式：耐震）4WRL...-750

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力士乐REXROTH三位四通的高响应换向阀、先导式、带电气位置反馈（LVDT的直流/直流±10V）4WRL.V

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力士乐REXROTH三位四通的高响应换向阀、先导式、电气位置反馈（LVDT的直流/直流±10V）4WRL.E(W)

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R901297812 4WRL25W350S-3X/G24K0/V-750

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R901222489 4WRL25W4-350S-3X/G24ETZ4/M

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力士乐REXROTH高响应换向阀、先导式、集成的数字轴控制器（IAC多以太网）4WRLD -3X

R901446834 4WRLD16V200L-3X/MPY/24ND6T

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力士乐REXROTH三位四通高响应换向阀、先导式、电气位置反馈和集成电子放大版（OBE）4WRLE

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力士乐REXROTH三位四通高响应换向阀、先导式、电气位置反馈和集成电子放大版（OBE）4WRLE.V

0811404688 4WRLE10V1-40P-3X/G24K0/A1M

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R901401438 4WRLE10V100P-3X/G24K0/F1V-979

R901225019 4WRLE10V40P-3X/G24ETK0/A1M

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力士乐REXROTH三位四通高响应换向阀、先导式、电气位置反馈和集成电子放大版（OBE）4WRLE.E(W)

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0811404319 4WRLE16EZ180SJ-3X/G24ETK0/A1M

R901162646 4WRLE16EZ180SJ-3X/G24ETK0/F1M

0811404305 4WRLE16EZ180SJ-3X/G24K0/A1M

R901176813 4WRLE16EZ180SJ-3X/G24K0/F1M

0811404318 4WRLE16EZ180SJ-3X/G24TK0/A1M

R901213842 4WRLE16W1-110SJ-3X/G24ETK0/A1M

R901330219 4WRLE16W1-180SJ-3X/G24EK0/A1M

R901280770 4WRLE16W1-180SJ-3X/G24EK0/A1V

0811404315 4WRLE16W1-180SJ-3X/G24EK0/A1WX02M-744

0811404321 4WRLE16W1-180SJ-3X/G24EK0/A1WX02M-756

R901443246 4WRLE16W1-180SJ-3X/G24EK0/F1V

R901297835 4WRLE16W1-180SJ-3X/G24ETK0/A1M

R901102544 4WRLE16W1-180SJ-3X/G24K0/A1M

R901284861 4WRLE16W1-180SJ-3X/G24K0/A1V

R901302358 4WRLE16W1-180SJ-3X/G24K0/F1M

R901403285 4WRLE16W1-180SJ-3X/G24K0/F1V

R901385102 4WRLE16W180SJ-3X/G24EK0/A1D3M

0811404300 4WRLE16W180SJ-3X/G24EK0/A1M

R901279340 4WRLE16W180SJ-3X/G24EK0/A1V

0811404326 4WRLE16W180SJ-3X/G24EK0/A1WX02M-745

R901297830 4WRLE16W180SJ-3X/G24ETK0/A1M

0811404301 4WRLE16W180SJ-3X/G24ETK0/A1WX02M-748

R901297693 4WRLE16W180SJ-3X/G24K0/A1M

0811404302 4WRLE16W180SJ-3X/G24K0/A1WX02M-752

R901289225 4WRLE16W180SJ-3X/G24K0/F1M

R901124889 4WRLE16W1Z180SJ-3X/G24EK0/A1M

0811404327 4WRLE16W1Z180SJ-3X/G24ETK0/A1M

0811404308 4WRLE16W1Z180SJ-3X/G24K0/A1M

R901336402 4WRLE16W1Z180SJ-3X/G24K0F1M

0811404317 4WRLE16W2-180SJ-3X/G24K0/A1M

0811404330 4WRLE16W3-180SJ-3X/G24EK0/A1WX02M-744

R901307603 4WRLE16W4-180SJ-3X/G24K0/A1M

0811404328 4WRLE16W4Z180SJ-3X/G24ETK0/A1M

0811404332 4WRLE16W4Z180SJ-3X/G24ETK0/A1WG02M

R901310407 4WRLE16W4Z180SJ-3X/G24K0/A1M

R901393182 4WRLE16W5-180SJ-3X/G24EK0/A1M

0811404320 4WRLE16W5-180SJ-3X/G24K0/A1M

R901205378 4WRLE16W5-180SJ-3X/G24K0/A1WX02M-939

0811404325 4WRLE16WA110SJ-3X/G24K0/A1M

0811404329 4WRLE16WA180SJ-3X/G24K0/A1M

0811404337 4WRLE16WZ180SJ-3X/G24EK0/A1M

0811404303 4WRLE16WZ180SJ-3X/G24EK0/A1M-561

0811404322 4WRLE16WZ180SJ-3X/G24EK0/A1M-758

R901276121 4WRLE16WZ180SJ-3X/G24EK0/A1V

R901292792 4WRLE16WZ180SJ-3X/G24EK0/F1M

0811404335 4WRLE16WZ180SJ-3X/G24ETK0/A1M

R901153931 4WRLE16WZ180SJ-3X/G24ETK0/A1M-561

0811404304 4WRLE16WZ180SJ-3X/G24ETK0/A1WX02M-749

R901198597 4WRLE16WZ180SJ-3X/G24ETK0/F1M

0811404307 4WRLE16WZ180SJ-3X/G24K0/A1M

R901188282 4WRLE16WZ180SJ-3X/G24K0/A1M-732

R901336917 4WRLE16WZ180SJ-3X/G24K0/A1M-758

0811404310 4WRLE16WZ180SJ-3X/G24K0/A1M-770

0811404324 4WRLE16WZ180SJ-3X/G24K0/A1M-772

R901219232 4WRLE16WZ180SJ-3X/G24K0/A1V

R901298640 4WRLE25E1-350SJ-3X/G24K0/A1M

R901174743 4WRLE25E1-350SJ-3X/G24K0/A1M-755

R901266975 4WRLE25E1Z350SJ-3X/G24EK0/A1M

R978033633 4WRLE25E1Z350SJ-3X/G24ETK0/A1M

0811404455 4WRLE25E1Z350SJ-3X/G24K0/A1M

0811404482 4WRLE25E1Z350SJ-3X/G24K0/A1M-760

R901253974 4WRLE25E1Z350SJ-3X/G24K0/A1V

R901437490 4WRLE25E1Z350SJ-3X/G24TK0/A1M

R901119603 4WRLE25E1Z350SJ-3X/G24TK0/A1M-760

R901339852 4WRLE25E350SJ-3X/G24EK0/A1M

R901334283 4WRLE25E350SJ-3X/G24EK0/A1V

R901313999 4WRLE25E350SJ-3X/G24ETK0/A1M

R901370595 4WRLE25E350SJ-3X/G24ETK0/A1M-760

R901316423 4WRLE25E350SJ-3X/G24ETK0/A1V

R901298639 4WRLE25E350SJ-3X/G24K0/A1M

R901299672 4WRLE25E350SJ-3X/G24TK0/F1M

R901124887 4WRLE25E4-350SJ-3X/G24EK0/A1M

R901287327 4WRLE25E4-350SJ-3X/G24ETK0/A1M

R901135036 4WRLE25E4-350SJ-3X/G24ETK0/A1WX02M-745

0811404459 4WRLE25E4-350SJ-3X/G24K0/A1M

R901104181 4WRLE25EZ350SJ-3X/G24EK0/A1M

R901396604 4WRLE25EZ350SJ-3X/G24EK0/F1M

0811404481 4WRLE25EZ350SJ-3X/G24ETK0/A1M

R901162822 4WRLE25EZ350SJ-3X/G24ETK0/F1M

0811404454 4WRLE25EZ350SJ-3X/G24K0/A1M

R901124948 4WRLE25EZ350SJ-3X/G24K0/A1WG082M

0811404466 4WRLE25EZ350SJ-3X/G24TK0/A1M

R901330221 4WRLE25W1-350SJ-3X/G24EK0/A1M

R901240380 4WRLE25W1-350SJ-3X/G24K0/A1M

R901279339 4WRLE25W1-350SJ-3X/G24K0/A1V

0811404476 4WRLE25W1Z350SJ-3X/G24EK0/A1M

R901285144 4WRLE25W1Z350SJ-3X/G24EK0/F1M

0811404457 4WRLE25W1Z350SJ-3X/G24K0/A1M

R901285764 4WRLE25W1Z350SJ-3X/G24K0/F1M

0811404469 4WRLE25W2Z350SJ-3X/G24K0/A1M

0811404467 4WRLE25W3-350SJ-3X/G24EK0/A1WX02M-745

0811404470 4WRLE25W3-350SJ-3X/G24EK0/A1WX02M-756

R901385103 4WRLE25W350SJ-3X/G24EK0/A1D3M

0811404450 4WRLE25W350SJ-3X/G24EK0/A1M

0811404474 4WRLE25W350SJ-3X/G24EK0/A1WX02M-745

0811404473 4WRLE25W350SJ-3X/G24EK0/A1WX02M-756

R901295781 4WRLE25W350SJ-3X/G24ETK0/A1M

0811404451 4WRLE25W350SJ-3X/G24ETK0/A1WX02M-748

R901298605 4WRLE25W350SJ-3X/G24K0/A1M

0811404471 4WRLE25W4Z350SJ-3X/G24ETK0/A1M

0811404472 4WRLE25W4Z350SJ-3X/G24K0/A1M

0811404492 4WRLE25W4Z350SJ-3X/G24K0/A1M-732

R901205379 4WRLE25W4Z350SJ-3X/G24K0/A1WX02M-939

R978715726 4WRLE25WZ350SJ-3X/G24EK0/A1M

0811404452 4WRLE25WZ350SJ-3X/G24EK0/A1M-561

0811404460 4WRLE25WZ350SJ-3X/G24EK0/A1WX02M-748

R978022977 4WRLE25WZ350SJ-3X/G24ETK0/A1M

0811404453 4WRLE25WZ350SJ-3X/G24ETK0/A1WX02M-749

0811404456 4WRLE25WZ350SJ-3X/G24K0/A1M

0811404461 4WRLE25WZ350SJ-3X/G24K0/A1M-758

0811404480 4WRLE25WZ350SJ-3X/G24K0/A1M-759

0811404488 4WRLE25WZ350SJ-3X/G24K0/A1V

R901229186 4WRLE25WZ350SJ-3X/G24K0/A1WX02M-756

R901199391 4WRLE25WZ350SJ-3X/G24K0/F1M

R901147909 4WRLE25WZ350SJ-3X/G24TK0/A1M

R901298182 4WRLE27E1-430SJ-3X/G24K0/A1M

R901135210 4WRLE27E4-430SJ-3X/G24ETK0/A1WX02M-745

0811404485 4WRLE27E4-430SJ-3X/G24K0/A1M

R901194873 4WRLE27E430SJ-3X/G24ETK0/A1M

0811404478 4WRLE27E430SJ-3X/G24K0/A1M

R901422814 4WRLE27E430SJ-3X/G24TK0/F1WX08M-914

R901319502 4WRLE27W1-430SJ-3X/G24EK0/A1M

0811404479 4WRLE27W3-430SJ-3X/G24EK0/A1WX02M-745

0811404443 4WRLE27W4-430SJ-3X/G24ETK0/A1WX02M-745

R901306204 4WRLE27W4-430SJ-3X/G24K0/A1M

R901175886 4WRLE27W430SJ-3X/G24EK0/A1M

0811404465 4WRLE27W430SJ-3X/G24EK0/A1WX02M-744

0811404475 4WRLE27W430SJ-3X/G24EK0/A1WX02M-746

比例溢流阀的特点是调定的压力与输入电流大小成正比，即输入的电流大，调定的压力高。

当通过计算机键盘输入被折板料的抗拉强度，厚度，长度以及下模V型槽开口宽度后，计算机按折弯力计算公式求得所需折弯力，经数模转换后，通过控制比例溢流阀的电控器，向比例溢流阀输入适当的电流值，从而达到控制折弯力大小的目的。板料折弯机所需小折弯力和允许的大折弯力要与比例溢流阀的压力特征曲线相对应，并且使调定的压力稍大于所需折弯力，以利于板料的顺利折弯。