力士樂電磁換向閥3WE6A62/EG220N9K4/V R900935575，上海韋米機電設備有限公司主營進口品牌備件：力士樂REXROTH，安沃馳AVENTICS，本特利BENTLY，迪普馬DUPLOMATIC，貝加萊B&R，阿托斯ATOS，愛爾泰克AIRTEC，世格ASCO等；歡迎詢價采購！
上海韋米機電設備有限公司主營產品：
液壓元件：柱塞泵、葉片泵、齒輪泵、馬達、截止閥、方向閥、減壓閥、溢流閥、手動閥、流量控制閥、比例閥、伺服閥、插裝閥、電液換向閥、電磁閥、換向閥、電磁球閥、蓄能器、放大版、壓力繼電器、壓力傳感器。
氣動元件：氣動閥、閥島、閥組、電磁閥、手動閥、換向閥、壓力調節閥、流量控制閥，止回閥、氣缸和驅動裝置、壓縮空氣氣源處理單元、真空技術、傳感器、氣動連接技術，電氣連接技術。
電控伺服：伺服驅動器，伺服電機、PLC模塊、I/O模塊、框架模塊、電源模塊、數據接口模塊、鍵相位模塊、繼電器模塊、測速模塊、溫度模塊、顯示屏、傳感器、探頭、前置器、延伸電纜。
電磁閥產品是自控系統中不可缺少的執行器元件。由于電磁閥體積小，開關速度快，接線簡單，功耗低，性價比高，經濟實用等顯著特點而被普遍運用于自控領域的各個環節，發揮著巨大的作用。電磁閥是一-種流體控制閥，盡管其優勢眾多，但選型的準確與否直接影響到閥門本身的使用效果及系統的穩定，甚至會給整個自控系統帶來嚴重后果。較機械設備上常用的氣動電磁閥及液壓電磁閥相比，管路系統中的流體電磁閥在選型上及使用上均比單一介質復雜許多。
詳解舉例：4WE6D6X/EG24N9K4
4→4通（也有3通）4個方向油口
6→通經為6
D→機能符號（也有C、D、E、EA、EB等）
6X→60至69系列 安裝和油口尺寸不變
斜杠（/）后面：無符號→彈簧復位
O→無彈簧復位
OF→無彈簧復位帶定位作用
E→高功率電磁鐵帶可拆卸線圈的濕式電磁鐵
G→直流電壓（W代表交流如W230代表交流230V電壓 50/60Hz,G205代表直流電壓205V等其它電壓和頻率）
24→24V電壓
N9→代表有隱式手動應急操作（標準）（只有N代表帶有手動應急操作，無手動應急操作無代號）
K4→電氣接線形式（單獨接線，帶有插頭定位銷DIN43 650-AM2,無導線插座）（DL指代集中接線在蓋上有引線，有亮燈顯示；DKL在蓋上有集中插頭，有亮燈顯示（不帶直角插座）
K4后面：無標識→無插入式節流口
B08→節流口fl 0.8mm
B10→節流口fl 1.0mm
B12→節流口fl 1.2mm
B08后面：無標識→丁晴橡膠密封
V→佛橡膠密封 （注意所用液壓油與密封件的適應性）
V后面：無標識→不帶定位銷孔
/60→帶定位銷孔
液壓機是一種以液體為工作介質，用來傳遞能量以實現各種工藝的機器。液壓機除用于鍛壓成形外，也可用于矯正、壓裝、打包、壓塊和壓板等。液壓機包括水壓機和油壓機。以水基液體為工作介質的稱為水壓機,以油為工作介質的稱為油壓機。液壓機的規格一般用公稱工作力（千牛）或公稱噸位（噸）表示。鍛造用液壓機多是水壓機，噸位較高。為減小設備尺寸，大型鍛造水壓機常用較高壓強（35兆帕左右），有時也采用 100兆帕以上的超高壓。其他用途的液壓機一般采用 6～25兆帕的工作壓強。油壓機的噸位比水壓機低。
基本原理是油泵把液壓油輸送到集成插裝閥塊，通過各個單向閥和溢流閥把液壓油分配到油缸的上腔或者下腔，在高壓油的作用下，使油缸進行運動.液壓機是 利用液體來傳遞壓力的設備。液體在密閉的容器中傳遞壓力時是遵循帕斯卡定律。四柱液壓機的液壓傳動系統由動力機構、控制機構、執行機構、輔助機構和工作介質組成。動力機構通常采用油泵作為動力機構，一般為積式油泵。為了滿足執行機構運動速度的要求， 選用一個油泵或多個油泵。低壓（油壓小于2.5MP）用齒輪泵；中壓（油壓小于6.3MP）用葉片泵；高壓（油壓小于32.0MP)用柱塞泵。各種可塑性 材料的壓力加工和成形，如不銹鋼板的擠壓、彎曲、拉深及金屬零件的冷壓成形，同時亦可用于粉末制品、砂輪、膠木、樹脂熱固性制品的壓制。
驅動系統
液壓機的驅動系統主要有泵直接驅動和泵-蓄能器驅動兩種型式。泵直接驅動，這種驅動系統的泵向液壓缸提供高壓工作液體，配流閥用來改變供液方向，溢流閥用來調節系統的限定壓強，同時起安全溢流作用。這種驅動系統環節少,結構簡單,壓強能按所需的工作力自動增減，減少了電能消耗，但須由液壓機的大工作力和高工作速度來決定泵及其驅動電機的容量。這種型式的驅動系統多用于中小型液壓機，也有用泵直接驅動的大型（如120000千牛）自由鍛造水壓機。
泵－蓄能器驅動 在這種驅動系統中有一個或一組蓄能器。當泵所供給的高壓工作液有余量時，由蓄能器儲存；而當供給量不足于需要時，便由蓄能器補充供給。采用這種系統可以按高壓工作液的平均用量選用泵和電動機的容量，但因為工作液的壓強是恒定的，電能消耗量較大，并且系統的環節多，結構比較復雜。這種驅動系統多用于大型液壓機，或者用一套驅動系統驅動數臺液壓機。
力士樂電磁換向閥3WE6A62/EG220N9K4/V R900935575
德國力士樂REXROTH電磁換向閥訂貨號和型號：
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液壓系統結構
液壓系統由信號控制和液壓動力兩部分組成，信號控制部分用于驅動液壓動力部分中的控制閥動作。
液壓動力部分采用回路圖方式表示，以表明不同功能元件之間的相互關系。液壓源含有液壓泵、電動機和液壓輔助元件;液壓控制部分含有各種控制閥，其用于控制工作油液的流量、壓力和方向;執行部分含有液壓缸或液壓馬達，其可按實際要求來選擇。
在分析和設計實際任務時，一般采用方框圖顯示設備中實際運行狀況。空心箭頭表示信號流，而實心箭頭則表示能量流。
基本液壓回路中的動作順序一控制元件(二位四通換向閥)的換向和彈簧復位、執行元件(雙作用液壓缸)的伸出和回縮以及溢流閥的開啟和關閉。對 于執行元件和控制元件，演示文稿都是基于相應回路圖符號，這也為介紹回路圖符號作了準備。
根據系統工作原理，您可對所有回路依次進行編號。如果一個執行元件編號為0，則與其相關的控制元件標識符則為1。如果與執行元件伸出相對應的元件標識符為偶數，則與執行元件回縮相對應的元件標識符則為奇數。不僅應對液壓回路進行編號，也應對實際設備進行編號，以便發現系統故障。
DIN ISO1219-2 標準定義了元件的編號組成，其包括下面四個部分，設備編號、回路編號、元件標識符和元件編號。如果整個系統僅有一種設備，則可省略設備編號。
實際中，另一種編號方式就是對液壓系統中所有元件進行連續編號，此時，元件編號應該與元件列表中編號相一致。這種方法特別適用于復雜液壓控制系統，每個控制回路都與其系統編號相對應。
力士樂REXROTH液壓元件應用行業：注塑機、吹塑機、橡膠和發泡機、陶瓷壓機、同步折彎機(折板機),、剪板機(剪床）、沖切/步沖、金屬壓力機、彎曲/鋸床、機床、食品機械、皮革/鞋機、木材/造紙機械、鋼鐵業/鑄造、壓鑄機/擠壓機、電廠、生態能源（風能-水力-太陽能）設備、油和天然氣工業設備、混凝土泵、路機、鉆井/開采設備、起重機、升降機/叉車、推土機、道路，隧道，水壩工程設備、壓縮機、街道維修設備、模擬器/娛樂設備、卡車、鐵路工程設備、航空工業設備、船舶/航海工業設備、打谷機/噴灑機、拖拉機/收割機。
