力士乐比例换向阀4WREE10E50-23/G24K31/A1V,德国REXROTH原厂原装,武汉百士自动化设备有限公司供应; 电液比例阀是阀内比例电磁铁输入电压信号产生相应动作,使工作阀阀芯产生位移,阀口尺寸发生改变并以此完成与输入电压成比例压力、流量输出元件。阀芯位移也可以以机械、液压或电形式进行反馈。电液比例阀具有形式种类多样、容易组成使用电气及计算机控制各种电液系统、控制精度高、安装使用灵活以及抗污染能力强等多方面优点,应用领域日益拓宽。近年研发生产插装式比例阀和比例多路阀充分考虑到工程机械使用特点,具有先导控制、负载传感和压力补偿等功能。它出现对移动式液压机械整体技术水平提升具有重要意义。特别是电控先导操作、无线遥控和有线遥控操作等方面展现了其良好应用前景。 力士乐比例换向阀4WREE10E50-23/G24K31/A1V 力士乐REXROTH二位四通和三位四通比例方向阀直控式,阀芯带位移电反馈,带集成式放大版(OBE)4WREE R900958157 4WREE10E1-25-2X/G24K31/A1V R901268119 4WREE10E1-25-2X/G24K31/A1V-280 R901066667 4WREE10E1-25-2X/G24K31/F1V R900933076 4WREE10E1-50-2X/G24K31/A1V R901162016 4WREE10E1-50-2X/G24K31/A1V-280 R901354776 4WREE10E1-50-2X/G24K31/F1M R900703908 4WREE10E1-50-2X/G24K31/F1V R901381875 4WREE10E1-75-2X/G24K31/A1M R900927232 4WREE10E1-75-2X/G24K31/A1V R901268118 4WREE10E1-75-2X/G24K31/A1V-280 R901354778 4WREE10E1-75-2X/G24K31/F1M R900970089 4WREE10E1-75-2X/G24K31/F1V R900933073 4WREE10E25-2X/G24K31/A1V R901112728 4WREE10E25-2X/G24K31/A1V-280 R900956574 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4WREE6E32-2X/G24K31/A1V-204=XV R900974914 4WREE6E32-2X/G24K31/A1V-280 R900975521 4WREE6E32-2X/G24K31/A1V=LB R901354736 4WREE6E32-2X/G24K31/F1M R900925733 4WREE6E32-2X/G24K31/F1V R900965748 4WREE6E32-2X/G24N9K31/A1V R901349814 4WREE6EA04-2X/G24K31/A1V R900950317 4WREE6EA08-2X/G24K31/A1V R900937147 4WREE6EA08-2X/G24K31/F1V R900913433 4WREE6EA16-2X/G24K31/A1V R900973289 4WREE6EA16-2X/G24K31/F1V R900912521 4WREE6EA32-2X/G24K31/A1V R900969497 4WREE6EA32-2X/G24K31/A1V=DE R900929889 4WREE6EA32-2X/G24K31/F1V R901032102 4WREE6EB04-2X/G24K31/F1V R901073284 4WREE6EB08-2X/G24K31/A1V R901063172 4WREE6EB08-2X/G24K31/F1V R900776804 4WREE6EB16-2X/G24K31/A1V R900932498 4WREE6EB32-2X/G24K31/A1V R900964078 4WREE6EB32-2X/G24K31/F1V R900930422 4WREE6M32-2X/G24K31/F1V R900912149 4WREE6Q2-08-2X/G24K31/A1V R901250869 4WREE6Q2-08-2X/G24K31/F1V R900912150 4WREE6Q2-16-2X/G24K31/A1V R900912154 4WREE6Q2-32-2X/G24K31/A1V R901287575 4WREE6Q2-32-2X/G24K31/F1V R901192082 4WREE6Q5-08-2X/G24K31/A1V R901116919 4WREE6Q5-32-2X/G24K31/A1V=DE R900936357 4WREE6V04-2X/G24K31/A1V R900976331 4WREE6V04-2X/G24K31/F1V R900909367 4WREE6V08-2X/G24K31/A1V R987243693 4WREE6V08-2X/G24K31/A1V-826+3.1K R901354737 4WREE6V08-2X/G24K31/F1M R900921427 4WREE6V08-2X/G24K31/F1V R987128194 4WREE6V08-2X/G24K31/F1V-876+3.1K R900935426 4WREE6V1-08-2X/G24K31/A1V R901393960 4WREE6V1-08-2X/G24K31/F1M R900949863 4WREE6V1-08-2X/G24K31/F1V R900931195 4WREE6V1-16-2X/G24K31/A1V R901393939 4WREE6V1-16-2X/G24K31/F1M R900949899 4WREE6V1-16-2X/G24K31/F1V R900914841 4WREE6V1-32-2X/G24K31/A1V R901414450 4WREE6V1-32-2X/G24K31/F1M R900709937 4WREE6V1-32-2X/G24K31/F1V R900907440 4WREE6V16-2X/G24K31/A1V R987243694 4WREE6V16-2X/G24K31/A1V-826+3.1K R900940561 4WREE6V16-2X/G24K31/F1V R987280483 4WREE6V16-2X/G24K31/F1V-876+3.1K R901176334 4WREE6V16-2X=G24K31/A1V R900911681 4WREE6V32-2X/G24K31/A1V R901007746 4WREE6V32-2X/G24K31/A1V-280 R987243695 4WREE6V32-2X/G24K31/A1V-826+3.1K R901284535 4WREE6V32-2X/G24K31/A1V-968 R901354740 4WREE6V32-2X/G24K31/F1M R900926747 4WREE6V32-2X/G24K31/F1V R987247179 4WREE6V32-2X/G24K31/F1V-876+3.1K R901267680 4WREE6V32-2X=G24K31/A1V-280 R900246469 4WREE6W04-2X/G24K31/A1V R900967564 4WREE6W04-2X/G24K31/F1V R900923000 4WREE6W08-2X/G24K31/A1V R901278020 4WREE6W08-2X/G24K31/A1V-280 R901354748 4WREE6W08-2X/G24K31/F1M R900924283 4WREE6W08-2X/G24K31/F1V R900929827 4WREE6W1-08-2X/G24K31/A1V R901003235 4WREE6W1-08-2X/G24K31/A1V-280 R901354749 4WREE6W1-08-2X/G24K31/F1M R900965071 4WREE6W1-08-2X/G24K31/F1V R901394157 4WREE6W1-16-2X/G24K31/A1M R900939627 4WREE6W1-16-2X/G24K31/A1V R901154928 4WREE6W1-16-2X/G24K31/A1V-280 R901421940 4WREE6W1-16-2X/G24K31/F1M R900937065 4WREE6W1-16-2X/G24K31/F1V R901368371 4WREE6W1-32-2X/G24K31/A1M R900913359 4WREE6W1-32-2X/G24K31/A1V R901362947 4WREE6W1-32-2X/G24K31/A1V-660 R901354752 4WREE6W1-32-2X/G24K31/F1M R900933476 4WREE6W1-32-2X/G24K31/F1V R900925657 4WREE6W16-2X/G24K31/A1V R901048039 4WREE6W16-2X/G24K31/A1V=LB R901362073 4WREE6W16-2X/G24K31/F1M R900950416 4WREE6W16-2X/G24K31/F1V R900929205 4WREE6W2-32-2X/G24K31/A1V R900911004 4WREE6W32-2X/G24K31/A1V R978902911 4WREE6W32-2X/G24K31/A1VSO43A-1539 R900969483 4WREE6W32-2X/G24K31/A1V=DE R900938299 4WREE6W32-2X/G24K31/A1V=LB R901438225 4WREE6W32-2X/G24K31/A1V=PL R901354753 4WREE6W32-2X/G24K31/F1M R900246793 4WREE6W32-2X/G24K31/F1V R901355277 4WREE6W32-2X=G24K31/A1V R900761481 4WREE6W9-16-2X/G24K31/A1V R900783449 4WREE6W9-32-2X/G24K31/A1V R901185980 4WREE6WA04-2X/G24K31/F1V R900973482 4WREE6WA08-2X/G24K31/A1V R901180378 4WREE6WA08-2X/G24K31/F1V R900974247 4WREE6WA16-2X/G24K31/A1V R900617766 4WREE6WA16-2X/G24K31/F1V R900926997 4WREE6WA32-2X/G24K31/A1V R900964934 4WREE6WA32-2X/G24K31/F1V R900780141 4WREE6WB32-2X/G24K31/A1V 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,即它的较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,最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**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。