力士乐柱塞泵比例控制阀VT-DFPE-C-22/G24K0/2A0V/V

力士乐柱塞泵比例控制阀VT-DFPE-C-22/G24K0/2A0V/V，德国REXROTH三位三通比例方向阀，购买进口液压、气动、自动化控制工业配件，认准“上海韦米机电设备有限公司”，7年老店，保证产品原厂原装，价格优惠，售后无忧，欢迎新老客户咨询采购！
 

液压比例控制系统
以比例控制元件完成动力与运动方向控制，分为比例压力阀、比例流量阀、比例方向阀及比例方向流量阀，可为模拟量输入或数字量输入，视是否带反馈分为开环控制与闭环控制，一般获得频率不是很高(10HZ)以内，高频响阀可实现较高频率。
若精度要求不高可考虑使用电液比例控制系统，一般电液比例控制系统可达至以下精度
位置精度- 3 mm
速度精度带压力补偿器- 3%
加减速斜坡时间-0.5秒
压力带位移传感器的产品-比例压力阀设定的0.3% (如压力设定为200bar,精度可达0.6bar)
一般的多驱动器液压系统皆要求流量及压力控制，提供比例压力及流量控制系统
开环式比例压力及流量控制可用于定量泵及变量泵系统。
速度和流量比例控制的分别是:
流量控制只控制供油量,并不控制驱动元件的运动方向;
若系统负载及变速要求高，则要使用速度控制系统。
速度比例控制多用于自动化控制、注塑机、压力机等
使用闭环的主要原因:
保持设定值不受外来干扰所影响
→在不同的工作压力下保持稳定的速度
→在不同的输出力下保证相同位置
→在带偏载的情况下作同步移动
提高精度要求
→位置误差低于1 mm
→压力误差低于1 ba
→需要控制加减速度
高动态要求的系统
→模拟应用
→测验应用

液压伺服控制系统
以伺服控制元件完成动力与运动方向控制，综合压力、流量、方向控制为一体，利用偏差控制进行纠偏，以满足精度控制需要，必须为闭环控制，可实现较高频率( 100HZ以上) ,有滑阀式、喷嘴挡板式、射流管式等，常采用机械伺服、电液伺服、气液伺服。

液压伺服系统分类:
(1)按输入的信号变化规律分类:定值控制系统、程序控制系统和伺服系统三类。当系统输入信号为定值时，称为定值控制系统，其基本任务是提高系统的抗干扰能力。当系统的输入信号按预先给定的规律变化时，称为程序控制系统。伺服系统也称为随动系统，其输入信号是时间的未知函数，输出量能够准确、迅速地复现输入量的变化规律。
(2)按输入信号的不同分类:机液伺服系统、电液伺服系统、气液伺服系统等。
(3)按输出的物理量分类:位置伺服系统、速度伺服系统、力(或压力)伺服系统等。
(4)按控制元件分类:阀控系统和泵控系统。在机械设备中，阀控系统应用较多。

液压伺服系统的特点如下:
(1)反馈。把输出量的一部分或全部按一定方式回送到输入端，并和输入信号进行比较，这就是反馈。在上例中，反馈(测速装置输出)电压和给定(输入信号)电压是异号的，即反馈信号不断地抵消输入信号，这是负反馈。自动控制系统大多数是负反馈。
(2)偏差。要使液压缸输出一定的力和速度，伺服阀必须有一定的开口量，因此输入和输出之间必须有偏差信号。液压缸运动的结果又力图消除这个误差。但在伺服系统工作的任何时刻都不能完全消除这一-偏差，伺服系统正是依靠这一-偏差信号进行工作的。
(3)放大。执行元件(液压缸)输出的力和功率远远大于输入信号的力和功率，其输出的能量是液压能源供给的。
(4)跟踪。液压缸的输出量完全跟踪输入信号的变化。

电液比例阀是比例控制系统中的主要功率放大元件,按输入电信号指令连续地成比例地控制液压系统的压办流量等参数。与伺服控制系统中的伺服阀相比,在某些方面还有一定的性能差距(主要性能比较如表1所示),但它显著的优点是抗污染能力强,大大地减少了由污染而造成的工作故障,提高了液压系统的工作稳定性和可靠性。另一方面比例阀的成本比伺服阀低，结构也简单,已在许多场合获得广泛应用。
力士乐柱塞泵比例控制阀VT-DFPE-C-22/G24K0/2A0V/V
力士乐REXROTH电动液压控制系统
零配件
力士乐REXROTH带电气位置反馈直动式三位三通比例方向阀作为SYDFE控制系统的先导阀
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力士乐REXROTH过滤单元
力士乐REXROTH带内联滤波器的滤波器单元
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力士乐REXROTH根据DIN 24550过滤器单元内置滤波器
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R901418480 KOLP10N-2X/R-30F160-10-E/M-032
R901304201 KOLP10N-2X/R-30F160-10-O/M
R901404260 KOLP10N-2X/R-30FB5/160-10-E/M
R901418486 KOLP10N-2X/R-30FB5/160-10-E/M-032
R901406205 KOLP10N-2X/R-30FT5-160-03-O/M
R901304210 KOLP10N-2X/R-45/M
R901304214 KOLP10N-2X/R-45F100-10-E/M
R901304213 KOLP10N-2X/R-45F100-10-O/M
R901304217 KOLP10N-2X/R-45F100-3-E/M
R901304218 KOLP10N-2X/R-45F160-10-E/M
R901418509 KOLP10N-2X/R-45F160-10-E/M-032
R901304220 KOLP10N-2X/R-45F160-10-O/M
R901304247 KOLP10N-2X/R-45FB5/100-10-E/M
R901304248 KOLP10N-2X/R-45FB5/160-03-E/M
R901307098 KOLP10N-2X/R-45FB5/160-10-E/M
R901418515 KOLP10N-2X/R-45FB5/160-10-E/M-032
R901451125 KOLP10N-2X/R-45FL160-3-E/M
R901304249 KOLP10N-2X/R-45FL250-10-E/M
R901304258 KOLP10N-2X/R-9/M
R901304260 KOLP10N-2X/R-9F100-10-E/M
R901304261 KOLP10N-2X/R-9F100-10-O/M
R901304265 KOLP10N-2X/R-9F160-10-E/M
R901304266 KOLP10N-2X/R-9F160-10-O/M
R901304271 KOLP10N-2X/R-9FB5-160-10-O/M
R901380264 KOLP3B-2X/R-19/M
R901313654 KOLP3C-2X/R-6F100-10-E/M
R901361745 KOLP3D-2X/R-13F100-10-E/M-014
R901326599 KOLP3D-2X/R-19/M
R901337433 KOLP3F-2X/R-13F100-10-E/M
R901313543 KOLP3G-2X/R-13F100-10-E/M-014
R901441739 KOLP3H-2X/R-13FB5/100-10-E/M
R901350401 KOLP3L-2X/R-6/M
R901435573 KOLP3M-2X/R-13FT6/100-10-O/M
R901304280 KOLP3N-2X/R-13/M
R901304281 KOLP3N-2X/R-13/M-014
R901304282 KOLP3N-2X/R-13F100-10-E/M
R901309098 KOLP3N-2X/R-13F100-10-E/M-014
R901304284 KOLP3N-2X/R-13F100-10-O/M
R901304289 KOLP3N-2X/R-13FB5/100-10-O/M
R901368356 KOLP3N-2X/R-13FT6/100-10-O/M
R901304290 KOLP3N-2X/R-19/M
R901304291 KOLP3N-2X/R-19F100-10-E/M
R901304293 KOLP3N-2X/R-19F100-10-O/M
R901304297 KOLP3N-2X/R-19FB5/100-10-E/M
R901304295 KOLP3N-2X/R-30/M
R901304301 KOLP3N-2X/R-30F100-10-E/M
R901304304 KOLP3N-2X/R-30F100-10-O/M
R901304310 KOLP3N-2X/R-6/M
R901304306 KOLP3N-2X/R-6F100-10-E/M
R901304311 KOLP3N-2X/R-6F100-10-O/M
R901383218 KOLP5B-2X/R-20F100-10-E/M
R901412984 KOLP5B-2X/R-9/M-014
R901458450 KOLP5C-2X/R-20FB5/100-10-E/M
R901414268 KOLP5F-2X/R-20/M
R901314493 KOLP5F-2X/R-20F100-10-E/M-008
R901334038 KOLP5F-2X/R-9/M
R901423018 KOLP5G-2X/R-20/M
R901396498 KOLP5G-2X/R-20F100-10-E/M
R901438881 KOLP5H-2X/R-9F100-10-O/M
R901439869 KOLP5H-2X/R-9F100-10-O/M-038
R901334266 KOLP5J-2X/R-20/M
R901436708 KOLP5M-2X/R-9F100-10-O/M
R901304315 KOLP5N-2X/R-20/M
R901304317 KOLP5N-2X/R-20B5/M
R901304320 KOLP5N-2X/R-20F100-10-E/M
R901418157 KOLP5N-2X/R-20F100-10-E/M-032
R901304325 KOLP5N-2X/R-20F100-10-O/M
R901404252 KOLP5N-2X/R-20FB5/100-10-E/M
R901418430 KOLP5N-2X/R-20FB5/100-10-E/M-032
R901304334 KOLP5N-2X/R-20FL160-10-E/M
R901329540 KOLP5N-2X/R-20FL160-10-E/M-014
R901304340 KOLP5N-2X/R-20T5/M
R901304328 KOLP5N-2X/R-30/M
R901304342 KOLP5N-2X/R-30F100-10-E/M
R901418458 KOLP5N-2X/R-30F100-10-E/M-032
R901304529 KOLP5N-2X/R-30F100-10-O/M
R901395444 KOLP5N-2X/R-30FB5100-10-E/M
R901418463 KOLP5N-2X/R-30FB5100-10-E/M-032
R901304700 KOLP5N-2X/R-30FT5/100-10-E/M
R901304540 KOLP5N-2X/R-45/M
R901304536 KOLP5N-2X/R-45F100-10-E/M
R901394406 KOLP5N-2X/R-45F100-10-E/M-004
R901304530 KOLP5N-2X/R-45F100-10-O/M
R901304532 KOLP5N-2X/R-9/M
R901304533 KOLP5N-2X/R-9F100-10-E/M
R901304541 KOLP5N-2X/R-9F100-10-O/M
R901304546 KOLP5N-2X/R-9F100-3-E/M
R901304550 KOLP5N-2X/R-9FB5100-10-O/M
R901304552 KOLP5N-2X/R-9FL100-10-E/M
R901336204 KOLP5N-2X/R-9L/M
R901371423 KOLP5N-2X/R-9T5/M
R901416672 KOLP8B-2X/R-19FB5/160-3-E/M
R901306322 KOLP8B-2X/R-30FB5/160-10-E/M
R901366547 KOLP8C-2X/R-30F100-10-E/M
R901446335 KOLP8D-2X/R-19F160-10-E/M
R901316749 KOLP8E-2X/R-30FB5/160-10-E/M
R901415512 KOLP8F-2X/R-19/M
R901307572 KOLP8F-2X/R-19F100-10-E/M
R901304559 KOLP8N-2X/R-13/M
R901426722 KOLP8N-2X/R-13F100-03-O/M
R901304565 KOLP8N-2X/R-13F100-10-E/M
R901304569 KOLP8N-2X/R-13F100-10-O/M
R901304553 KOLP8N-2X/R-13F160-10-E/M
R901304572 KOLP8N-2X/R-13F160-10-O/M
R901390120 KOLP8N-2X/R-13FB5/160-10-E/M
R901304568 KOLP8N-2X/R-13FL100-10-E/M
R901304575 KOLP8N-2X/R-19/M
R901304576 KOLP8N-2X/R-19F100-10-E/M
R901304582 KOLP8N-2X/R-19F100-10-O/M
R901304583 KOLP8N-2X/R-19F160-10-E/M
R901304584 KOLP8N-2X/R-19F160-10-O/M
R901304589 KOLP8N-2X/R-19F160-3-E/M
R901406123 KOLP8N-2X/R-19FB5/100-10-E/M
R901304592 KOLP8N-2X/R-19FL160-10-E/M
R901418868 KOLP8N-2X/R-19FT5-100-3-E/M
R901304595 KOLP8N-2X/R-30/M
R901304597 KOLP8N-2X/R-30F100-10-E/M
R901304602 KOLP8N-2X/R-30F100-10-O/M
R901304607 KOLP8N-2X/R-30F160-10-E/M
R901418466 KOLP8N-2X/R-30F160-10-E/M-032
R901304609 KOLP8N-2X/R-30F160-10-O/M
R901304613 KOLP8N-2X/R-30FB5/100-10-E/M
R901304614 KOLP8N-2X/R-30FB5/160-10-E/M
R901418474 KOLP8N-2X/R-30FB5/160-10-E/M-032
R901304617 KOLP8N-2X/R-30FB5L/160-3-O/M
R901304622 KOLP8N-2X/R-6/M
R901304628 KOLP8N-2X/R-6F100-10-E/M
R901304629 KOLP8N-2X/R-6F100-10-O/M
R901304630 KOLP8N-2X/R-6F160-10-E/M
R901304638 KOLP8N-2X/R-6F160-10-O/M
力士乐REXROTH压力指示装置
力士乐REXROTH充液压力表
R987306652 ABZMM160-400BAR/MPA-U/V-G
R901123463 ABZMM40-10BAR/MPA-R/V-G
R901123227 ABZMM40-16BAR/MPA-R/V-G
R901123465 ABZMM40-25BAR/MPA-R/V-G
R901123468 ABZMM40-40BAR/MPA-R/V-G
R901101535 ABZMM40-60BAR/MPA-R/V-G
R901101536 ABZMM40-100BAR/MPA-R/V-G
R901101537 ABZMM40-160BAR/MPA-R/V-G
R901096694 ABZMM40-250BAR/MPA-R/V-G
R901101538 ABZMM40-400BAR/MPA-R/V-G
R900029132 ABZMM63-10BAR/MPA-R/B-G
R901108774 ABZMM63-10BAR/MPA-U/V-G
R900027254 ABZMM63-10BAR/PSI-R/B-G
R900067155 ABZMM63-10BAR/PSI-U/V-G
R900072025 ABZMM63-16BAR/MPA-R/B-G
R901347075 ABZMM63-16BAR/MPA-R/B-T
R901108567 ABZMM63-16BAR/MPA-U/V-G
R900027255 ABZMM63-16BAR/PSI-R/B-G
R900067158 ABZMM63-16BAR/PSI-U/V-G
R900033955 ABZMM63-25BAR/MPA-R/B-G
R900219546 ABZMM63-25BAR/MPA-U/V-G
R900027256 ABZMM63-25BAR/PSI-R/B-G
R900027960 ABZMM63-25BAR/PSI-U/V-G
R900072026 ABZMM63-40BAR/MPA-R/B-G
R901108775 ABZMM63-40BAR/MPA-U/V-G
R900027257 ABZMM63-40BAR/PSI-R/B-G
R900027961 ABZMM63-40BAR/PSI-U/V-G
R900072024 ABZMM63-60BAR/MPA-R/B-G
R900722020 ABZMM63-60BAR/MPA-R/B-T
R901210474 ABZMM63-60BAR/MPA-R/B030G
R901286720 ABZMM63-60BAR/MPA-R/B035G
R900222365 ABZMM63-60BAR/MPA-U/V-G
R900027258 ABZMM63-60BAR/PSI-R/B-G
R901335810 ABZMM63-60BAR/PSI-R/B035G
R901315429 ABZMM63-60BAR/PSI-R/V-G
R900027962 ABZMM63-60BAR/PSI-U/V-G
R900022458 ABZMM63-100BAR/MPA-R/B-G
R900051035 ABZMM63-100BAR/MPA-U/V-G
R901233159 ABZMM63-100BAR/MPA-U/V065G
R900027259 ABZMM63-100BAR/PSI-R/B-G
R900027963 ABZMM63-100BAR/PSI-U/V-G
R900022457 ABZMM63-160BAR/MPA-R/B-G
R900741239 ABZMM63-160BAR/MPA-R/B-T
R901166782 ABZMM63-160BAR/MPA-R/B050G
R901043344 ABZMM63-160BAR/MPA-R/B060G
R901231471 ABZMM63-160BAR/MPA-R/B070G
R901157266 ABZMM63-160BAR/MPA-R/B080G
R901284237 ABZMM63-160BAR/MPA-R/B090G
R900032523 ABZMM63-160BAR/MPA-R/B100G
R901174484 ABZMM63-160BAR/MPA-R/B120G
R900077650 ABZMM63-160BAR/MPA-U/V-G
R901239153 ABZMM63-160BAR/MPA-U/V100G
R900027260 ABZMM63-160BAR/PSI-R/B-G
R901294268 ABZMM63-160BAR/PSI-R/B050G
R901085369 ABZMM63-160BAR/PSI-R/B100G
R901294267 ABZMM63-160BAR/PSI-R/B100G
R900027964 ABZMM63-160BAR/PSI-U/V-G
R901253924 ABZMM63-160BAR/PSI-U/V100G
R900072028 ABZMM63-250BAR/MPA-R/B-G
R900089240 ABZMM63-250BAR/MPA-R/B-T
R901248562 ABZMM63-250BAR/MPA-R/B120G
R901221691 ABZMM63-250BAR/MPA-R/B130G
R901176230 ABZMM63-250BAR/MPA-R/B140G
R901176446 ABZMM63-250BAR/MPA-R/B150G
R901133930 ABZMM63-250BAR/MPA-R/B160G
R900074572 ABZMM63-250BAR/MPA-R/B200G
R901049647 ABZMM63-250BAR/MPA-R/B210G
R900771208 ABZMM63-250BAR/MPA-U/V-G
R900785978 ABZMM63-250BAR/MPA-U/V-T
R901239043 ABZMM63-250BAR/MPA-U/V140G
R901079699 ABZMM63-250BAR/MPA-U/V140G
R901116440 ABZMM63-250BAR/MPA-U/V210G
R900027261 ABZMM63-250BAR/PSI-R/B-G
R901322198 ABZMM63-250BAR/PSI-R/B090G
R901229163 ABZMM63-250BAR/PSI-R/B140G
R901302798 ABZMM63-250BAR/PSI-R/B150G
R901134960 ABZMM63-250BAR/PSI-R/B160G
R900027965 ABZMM63-250BAR/PSI-U/V-G
R901253928 ABZMM63-250BAR/PSI-U/V140G
R901110158 ABZMM63-400BAR-R/V210G
R900022459 ABZMM63-400BAR/MPA-R/B-G
R900990128 ABZMM63-400BAR/MPA-R/B-T
R901176415 ABZMM63-400BAR/MPA-R/B180G
R901248563 ABZMM63-400BAR/MPA-R/B200G
R901176052 ABZMM63-400BAR/MPA-R/B210G
R901213630 ABZMM63-400BAR/MPA-R/B220G
R901194389 ABZMM63-400BAR/MPA-R/B230G
R901129001 ABZMM63-400BAR/MPA-R/B250G
R901176231 ABZMM63-400BAR/MPA-R/B300G
R901038940 ABZMM63-400BAR/MPA-R/B315G
R901014618 ABZMM63-400BAR/MPA-R/B330G
R900053460 ABZMM63-400BAR/MPA-U/V-G
R900230979 ABZMM63-400BAR/MPA-U/V-T
R901270701 ABZMM63-400BAR/MPA-U/V175G
R901106729 ABZMM63-400BAR/MPA-U/V210G
R901231619 ABZMM63-400BAR/MPA-U/V250G
R900027262 ABZMM63-400BAR/PSI-R/B-G
R901126579 ABZMM63-400BAR/PSI-R/B210G
R901335811 ABZMM63-400BAR/PSI-R/B210G
R901126577 ABZMM63-400BAR/PSI-R/B250G
R901225865 ABZMM63-400BAR/PSI-R/B260G
R900027966 ABZMM63-400BAR/PSI-U/V-G
R901253933 ABZMM63-400BAR/PSI-U/V210G
R901290000 ABZMM63-400BAR/PSI-U/V250G
R900072027 ABZMM63-600BAR/MPA-R/B-G
R901248721 ABZMM63-600BAR/MPA-R/B280G
R901248564 ABZMM63-600BAR/MPA-R/B300G
R901210495 ABZMM63-600BAR/MPA-R/B315G
R901210122 ABZMM63-600BAR/MPA-R/B330G
R901352257 ABZMM63-600BAR/MPA-R/B350G
R901176411 ABZMM63-600BAR/MPA-R/B400G
R901037755 ABZMM63-600BAR/MPA-U/V-G
R901175790 ABZMM63-600BAR/MPA-U/V300G
R901105180 ABZMM63-600BAR/MPA-U/V330G
R901239042 ABZMM63-600BAR/MPA-U/V400G
R900067183 ABZMM63-600BAR/PSI-R/B-G
R901341681 ABZMM63-600BAR/PSI-R/B280G
R901257616 ABZMM63-600BAR/PSI-R/B330G
R900067154 ABZMM63-600BAR/PSI-U/V-G
R901253936 ABZMM63-600BAR/PSI-U/V330G
R900072029 ABZMM63-1000BAR/MPA-R/B-G
R901150441 ABZMM63-1000BAR/MPA-U/V-G
R900072022 ABZMM63-1000BAR/PSI-R/B-G
R900034024 ABZMM63-1000BAR/PSI-U/V-G
R900072004 ABZMM100-10BAR/MPA-R/B-G
R901108776 ABZMM100-10BAR/MPA-U/V-G
R900027263 ABZMM100-10BAR/PSI-R/B-G
R901150437 ABZMM100-10BAR/PSI-U/V-G
R900072006 ABZMM100-16BAR/MPA-R/B-G
R996541465 ABZMM100-16BAR/MPA-R/B-G1.4301
R996541434 ABZMM100-16BAR/MPA-U/B-G1.4301
R900762148 ABZMM100-16BAR/MPA-U/V-G
R900027264 ABZMM100-16BAR/PSI-R/B-G
R901150438 ABZMM100-16BAR/PSI-U/V-G
R900061658 ABZMM100-25BAR/MPA-R/B-G
R996541478 ABZMM100-25BAR/MPA-R/B-G1.4301
R996533805 ABZMM100-25BAR/MPA-U/B-G1.4301
R900061844 ABZMM100-25BAR/MPA-U/V-G
R900027265 ABZMM100-25BAR/PSI-R/B-G
R900027967 ABZMM100-25BAR/PSI-U/V-G
R900072008 ABZMM100-40BAR/MPA-R/B-G
R901108779 ABZMM100-40BAR/MPA-U/V-G
R900027266 ABZMM100-40BAR/PSI-R/B-G
R900027968 ABZMM100-40BAR/PSI-U/V-G
R900072011 ABZMM100-60BAR/MPA-R/B-G
R996555203 ABZMM100-60BAR/MPA-U/B-G1.4301
R901108780 ABZMM100-60BAR/MPA-U/V-G
R900027267 ABZMM100-60BAR/PSI-R/B-G
R900027969 ABZMM100-60BAR/PSI-U/V-G
R996511443 ABZMM100-10/MPA-U/B-G
R900072007 ABZMM100-100BAR/MPA-R/B-G
R901276218 ABZMM100-100BAR/MPA-R/B-G-G1/4
R901094102 ABZMM100-100BAR/MPA-R/B060G
R901042293 ABZMM100-100BAR/MPA-U/V-G
R901223467 ABZMM100-100BAR/MPA-U/V-T
R900027268 ABZMM100-100BAR/PSI-R/B-G
R900027970 ABZMM100-100BAR/PSI-U/V-G
R900072012 ABZMM100-160BAR/MPA-R/B-G
R996537059 ABZMM100-160BAR/MPA-R/B-G1.4301
R901276219 ABZMM100-160BAR/MPA-R/B-G-G1/4
R901065318 ABZMM100-160BAR/MPA-R/B100G
R996532585 ABZMM100-160BAR/MPA-U/B-G1.4301
R900762149 ABZMM100-160BAR/MPA-U/V-G
R900027269 ABZMM100-160BAR/PSI-R/B-G
R900027971 ABZMM100-160BAR/PSI-U/V-G
R901253911 ABZMM100-160BAR/PSI-U/V100G
R900066324 ABZMM100-250BAR/MPA-R/B-G
R996547692 ABZMM100-250BAR/MPA-R/B-G1.4301
R901276220 ABZMM100-250BAR/MPA-R/B-G-G1/4
R901038334 ABZMM100-250BAR/MPA-R/B160G
R901161794 ABZMM100-250BAR/MPA-R/B210G
R900063028 ABZMM100-250BAR/MPA-U/V-G
R901343834 ABZMM100-250BAR/MPA-U/V-G&
R900619420 ABZMM100-250BAR/MPA-U/V160G
R901202568 ABZMM100-250BAR/MPA-U/V210G
R901287779 ABZMM100-250BAR/MPA-U/V220G
R900027270 ABZMM100-250BAR/PSI-R/B-G
R901041916 ABZMM100-250BAR/PSI-R/B220G
R900027972 ABZMM100-250BAR/PSI-U/V-G
R901253912 ABZMM100-250BAR/PSI-U/V140G
R901093433 ABZMM100-250BAR/PSI-U/V160G
R901213817 ABZMM100-250BAR/PSI-U/V180G
R900066323 ABZMM100-400BAR/MPA-R/B-G
R901276217 ABZMM100-400BAR/MPA-R/B-G-G1/4
R901174144 ABZMM100-400BAR/MPA-R/B-T
R901063299 ABZMM100-400BAR/MPA-R/B210G
R901196755 ABZMM100-400BAR/MPA-R/B220G
R901145045 ABZMM100-400BAR/MPA-R/B250G
R901238718 ABZMM100-400BAR/MPA-R/B270G
R901064600 ABZMM100-400BAR/MPA-R/B310G
R901212039 ABZMM100-400BAR/MPA-R/B315G
R901188613 ABZMM100-400BAR/MPA-R/B330G
R900063029 ABZMM100-400BAR/MPA-U/V-G
R901343837 ABZMM100-400BAR/MPA-U/V-G&
R901223464 ABZMM100-400BAR/MPA-U/V-T
R901248566 ABZMM100-400BAR/MPA-U/V210G
R900027271 ABZMM100-400BAR/PSI-R/B-G
R901042723 ABZMM100-400BAR/PSI-R/B210G
R901248571 ABZMM100-400BAR/PSI-R/B220G
R901216659 ABZMM100-400BAR/PSI-R/B315G
R901042968 ABZMM100-400BAR/PSI-R/B330G
R900027973 ABZMM100-400BAR/PSI-U/V-G
R901248572 ABZMM100-400BAR/PSI-U/V180G
R901253915 ABZMM100-400BAR/PSI-U/V210G
R900066325 ABZMM100-600BAR/MPA-R/B-G
R901248573 ABZMM100-600BAR/MPA-R/B270G
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力士乐REXROTH浮球开关
力士乐REXROTH具有两个开关触点和一个温度触点的浮子开关
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一、液压传动技术的应用
液压传动技术在近代工业制造中的应用
液压传动有许多突出的优点，因此它的应用非常广泛，如一般工业用的塑料加工机械、压力机械、机床等，行走机械中的工程机械、建筑机械、农业机械、汽车等;钢铁工业用的冶金机械、提升装置、轧辊调整装置等;土木水利工程用的防洪闸门及堤坝装置、河床升降装置、桥梁操纵机构等，发电厂涡轮机调速装置、发电厂等等。

二、液压传动技术的原理与特点
1、液压传动的介绍
液压传动是用液体作为工作介质来传递能量和进行控制的传动方式。液压传动和气压传动并称为流体传动，是根据17世纪帕斯卡提出的液体静压力传动原理而发展起来的一门新兴技术，是工农业生产中应用广泛的技术。
2、液压传动的优点
(1)体积小、重量轻，因此惯性力较小，当突然过载或停车时，不会发生大的冲击，
(2)能在给定范围内平稳的自动调节牵引速度，并可实现无极调速;
(3)换向容易，在不改变电机旋转方向的情况下，可以较方便地实现工作机构旋转和直线往复运动的转换;
(4)液压泵和液压马达之间用油管连接，在空间布置上彼此不受严格限制;
(5) 由于采用油液为工作介质，元件相对运动表面间能自行润滑，磨损小，使用寿命长;
(6)操纵控制简便，自动化程度高;
(7)容易实现过载保护。
液压传动有许多突出的优点，因此它的应用非常广泛，如一般工业用的塑料加工机械、压力机械、机床等，行走机械中的工程机械、建筑机械、农业机械、汽车等，钢铁工业用的冶金机械、提升装置、轧辊调整装置等，土木水利工程用的防洪闸门及堤坝装置、河床升降装置、桥粱操纵机构等;发电厂涡轮机调速装置等等，船舶用的甲板起重机械、船头门、舱壁阀、船尾推进器等，特殊技术用的控制装置、测量浮标、升降旋转舞台等。
3、液压传动的基本原理
液压传动的基本原理是在密闭的容器内，利用有压力的油液作为工作介质来实现能量转换和传递动力的。其中的液体称为工作介质，一般为矿物油，它的作用和机械传动中的皮带、链条和齿轮等传动元件相类似。液压传动是利用帕斯卡原理!帕斯卡原理是大概就是:在密闭环境中，向液体施加一个力，这个液体会向各个方向传递这个力!力的大小不变!液压传动就是利用这个物理性质，向一个物体施加一个力，利用帕斯卡原理使这个力变大!从而起到举起重物的效果!
液压传动在阀门行业也得到很大的应用,如阀门的机床制造加工设备、阀门]液压试验设备、阀门的液压传动装置等。

三、液压传动系统的组成
1、液压动力原件
将动力装置的机械能转换成为液压能的装置，其作用是为液压传动系统提供压力油,是液压传动系统的动力源。例如液压泵。
1.1液压泵
液压泵是液压系统的动力元件，其作用是将原动机的机械能转换成液体的压力能,指液压系统中的油泵，它向整个液压系统提供动力。液压泵的结构形式一般有齿轮泵、叶片泵和柱塞泵。
1.2齿轮泵
齿轮泵即依靠密封在个壳体中的两个或两个以上齿轮,在相互啮合过程中所产生的工作空间容积变化来输送液体的泵。齿轮泵的概念是很简单的，即它的基本形式就是两个尺寸相同的齿轮在一个紧密配合的壳体内相互啮合旋转，这个壳体的内部类似“8”字形，两个齿轮装在里面,齿轮的外径及两侧与壳体紧密配合。来自于挤出机的物料在吸入口进入两个齿轮中间，并充满这一空间，随着齿的旋转沿壳体运动，*后在两齿啮合时排出。困油现象齿轮泵要平稳工作，齿轮啮合的重合度必须大于1, 于是总有两对齿轮同时啮合, :并有一部分油液被围困在两对轮齿所围成的封闭容腔之间。这个封闭的容腔开始随着
齿轮的转动逐渐减小，以后又逐渐加大。封闭腔容积的减小会使被困油液受挤压而产生很高的压力，并且从缝隙中挤出，导致油液发热，并致使机件受到额外的负载，而封闭腔容积的增大又造成局部真空，使油液中溶解的气体分离，产生气穴现象。这些都将产生强烈的振动和噪音，这就是齿轮泵的困意现象。
危害：径向不平衡力很大时能使轴弯曲，齿顶与壳体接触，同时加速轴承的磨损，降低轴承的寿命。
消除困油现象方法:通常是在两侧盖板上开卸荷槽，使封闭腔容积诚小时通过左边的卸荷槽与压油腔相通，容积增大时通过右边的卸荷槽与吸油腔相通。
1.3叶片泵
叶片泵即通过叶轮的旋转，将动力机的机械能转换为水能(势能、动能、压能)的水力机械。
叶片泵转子旋转时，叶片在离心力和压力油的作用下，尖部紧贴在定子内表面上。这样两个叶片与转子和定子内表面所构成的工作容积，先由小到大吸油后再由大到小排油，叶片旋转一周时，完成两次吸油与排油。
1.4柱塞泵
柱塞泵即利用柱塞在泵缸体内往复运动，使柱塞与泵壁间形成容积改变，反复吸入和排;出液体并增高其压力的泵。
柱塞泵是液压系统的一个重要装置。它依靠柱塞在缸体中往复运动，使密封工作容腔的容积发生变化来实现吸油、压油。柱塞泵具有额定压力高、结构紧凑、效率高和流量调节方便等优点，被广泛应用于高压、大流量和流量需要调节的场合，诸如液压机、工程机械和船舶中。

2、液压执行元件
将液压能转换为机械能的装置，其作用是在压力油的推动下输出力和速度或转矩和速度，以驱动工作装置做工。例如液压缸、液压马达。
2.1液压马达
液压马达习惯上是指输出旋转运动的，将液压泵提供的液压能转变为机械能的能量转换装置。
液压马达亦称为油马达，主要应用于注塑机械、船舶、起扬机、工程机械、建筑机械、煤矿机械、矿山机械、冶金机械、船舶机械、石油化工、港口机械等。
高速马达齿轮马达具有体积小、重量轻、结构简单、工艺性好、对油液的污染不敏感、耐冲击和惯性小等优点。缺点有扭矩脉动较大、效率较低、起动扭矩较小(仅为额定扭矩的60%-一70%)和低速稳定性差等。
2.2液压缸
液压缸是将液压能转变为机械能的、做直线往复运动(或摆动运动)的液压执行元件。它结构简单、工作可靠。用它来实现往复运动时，可免去减速装置，并且没有传动间隙，运动平稳，因此在各种机械的液压系统中得到广泛应用。液压缸输出力和活塞有效面积及其两边的压差成正比;液压缸基本上由缸筒和缸盖、活塞和活塞杆、密封装置、缓神装置与排气装置组成。缓神装置与排气装置视具体应用场合而定，其他装置则必不可少。
3.3液压控制调节元件
用来控制液压传动系统中油液的流动方向、压力和流量，以保证液压执行元件和工作装置完成指定工作。
液压传动中用来控制液体压力、流量和方向的元件。其中控制压力的称为压力控制阀，控制流量的称为流量控制阀，控制通、断和流向的称为方向控制阀。
3.4液压辅助元件
保证液压传动系统正常工作。例如油箱、油管、滤油器。
液压辅件是系统的一一个重要组成部分，其合理设计和选用在很大程度上影响液压系统的效率、噪声、温升、工作可靠性等技术性能。主要包括:
3.4.1过滤器
过滤器的作用:滤去油中杂质，维护油液清洁，防止油液污染，保证系统正常工作。
3.4.2蓄能器
蓄能器的作用:
蓄能器是液压系统中储存和释放压力能的装置。
1.作辅助动力源或紧急动力源在工作循环不同阶段需要的流量变化很大时，常采用蓄能器和一个流量较小的泵组成油源。另外当驱动泵的原动机发生故障时，蓄能器可作紧急动力源。
2.保压和补充泄漏需要较长时间保压而泵卸载时，可利用蓄能器释放储存的压力油，补充系统泄漏，保持系统压力。
3.吸收冲击和消除压力脉动在压力冲击处和泵的出口安装蓄能器可吸收压力冲击峰值和压力脉动，提高系统工作的平稳性。
3.4.3油箱
油箱是液压系统中储存液压油用。
油箱的功用:
储存系统所需的足够油液;;
散发油液中的热量;
逸出溶解在油液中的空气; :
沉淀油液中的污物;
对中小型液压系统，泵装置及一些液压元件还安装在油箱顶板上。
3.4.4热交换器
系统能量损失转换为热量以后，会使油液温度升高。若长时间油温过高,油液粘度下降，泄漏增加，密封老化，油液氧化，严重影响系统正常工作。为保证正常工作温度在20~65C，需要在系统中安装冷却器。相反，油温过低，油液粘度过大，设备启动困难，压力损失加大并引起过大的振动。此种情况下系统应安装加热器，将油液温度升高到适合的温度。
3.4.5管件
管件是用来连接液压元件、输送液压油液的连接件。它应保证有足够的强度,没有泄漏,密封性能好，压力损失小，拆装方便。
3.4.6密封装置
密封装置用来防止系统油液的内外泄漏，以及外界灰尘和异物的侵入，保证系统建立必要压力。
3.5液压工作介质
工作介质指传动液体，通常被称为液压油。
3.5.1液压油
液压油引就是利用液体压力能的液压系统使用的液压介质，在液压系统中起着能量传递、系统润滑、防腐、防锈、冷却等作用。对于液压油来说，首先应满足液压装置在工作温度下与启动温度下对液体粘度的要求，由于油的粘度变化直接与液压动作、传递效率和传递精度有关，还要求油的粘温性能和剪切安定性应满足不同用途所提出的各种需求。
3.5.2液压油的要求
质量要求:
1.合适的粘 度和良好的粘温性能，以保证液压元件在工作压力和工作温度发生变化的条件下得到良好润滑、冷却和密封。
2.良好的极压抗磨性， 以保证油泵、液压马达、控制阀和油缸中的摩擦副在高压、高速苛刻条件下得到正常的润滑，减少磨损。
3.优良的抗氧化安定性、水解安定性和热稳定性，以抵抗空气、水分和高温、高压等因素的影响或作用，使其不易老化变质，延长使用寿命。
4.良好的抗泡性 和空气释放值，以保证在运转中受到机械剧烈搅拌的条件下产生的泡沫能迅速消失:并能将混入油中的空气在较短时间内释放出来，以实现准确、灵敏、平稳地传递静压。
5.良好的抗乳化性， 能与混入油中的水分迅速分离，以免形成乳化液，引起液压系统的金属材质锈蚀和降低使用性能。
6.良好的防锈性，以防止金属表面锈蚀。