4WMM10J3X/手動(dòng)換向閥

4WMM10J3X/手動(dòng)換向閥

技術(shù)參數(shù)：

通徑6、10、16、25

壓力至35Mpa

流量至450L/min

介質(zhì)：礦物質(zhì)液壓油或磷酸酯液壓油

溫度：-30~ 80℃

粘度：2.8~500mm2/s

流量：6通徑（至60L/min）、10通徑（至100L/min）、16通徑（至300L/min）、25通徑（至450L/min）

工作壓力：6、10通徑（油口A、B、P 至31.5MP a，油口T 至15MPa）。

16、25通徑（油口A、B、P 至35MP a，油口T 至25MPa

眾所周知，液壓系統(tǒng)一般由能源部分（液壓泵與原動(dòng)機(jī)的統(tǒng)稱）、控制部分（方向控制閥、壓力控制閥及流量控制閥等各類液壓控制閥的統(tǒng)稱）、執(zhí)行器（液壓缸、液壓馬達(dá)及擺動(dòng)液壓馬達(dá)的統(tǒng)稱）和輔助部分（蓄能器、油箱、過濾器，壓力表及壓力開關(guān)、管件等的統(tǒng)稱）四個(gè)部分組成。

說明

WMM型手動(dòng)換向閥是通過手柄的轉(zhuǎn)動(dòng)使閥芯做軸向移動(dòng)從而對(duì)油路進(jìn)行切換的直動(dòng)式換向滑閥。具有二位三通，二位四通和三位四通多種滑閥機(jī)能。并可選擇定位設(shè)備和彈簧復(fù)位裝置，采用板式連接。

 WMM…/型（帶復(fù)位彈簧，不帶定位設(shè)備）：

該閥由閥體、手柄、閥芯、一個(gè)或兩個(gè)復(fù)位彈簧和推桿等組成。

當(dāng)未操縱手柄時(shí)，閥芯被復(fù)位彈簧保持在中位或初始位置上，當(dāng)向右或向左推動(dòng)手柄2時(shí)，手柄通過鉸鏈推動(dòng)推桿并直接控制閥芯，閥芯便移動(dòng)到要求的位置，從而獲得所需要的流動(dòng)截面。當(dāng)手柄回到零位時(shí)，控制閥芯借助復(fù)位彈簧回到正常位置。這種閥的切換位置由手柄操縱確定。

WMM…/F型（不帶復(fù)位彈簧，帶定位設(shè)備）：

原理上與WMM…/基本相同，但這種形式的閥是有二個(gè)或者三個(gè)切換位置和一個(gè)定位設(shè)備的控制閥。因而所有切換位置是固定的。

插裝阻尼器：

由于工作條件限制，切換過程中可能出現(xiàn)閥的流量超過閥性能曲線上規(guī)定的流量，這時(shí)需要采用阻尼器。它安裝在閥的P腔或油路中。

WMM閥采用板式連接。較國(guó)內(nèi)其它系統(tǒng)閥具有體積小，通流能力大，可靠性好等優(yōu)點(diǎn)，可與相同通徑的疊加閥使用。廣泛應(yīng)用于工程機(jī)械、煤礦機(jī)械、化工機(jī)械、輕工機(jī)械、機(jī)車等各行業(yè)中。

4WMM10J3X/手動(dòng)換向閥型號(hào)

力士樂REXROTH定向滑閥，直接操作，手動(dòng)驅(qū)動(dòng)WMM 10

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方向控制閥 按用途分為單向閥和換向閥。單向閥：只允許流體在管道中單向接通，反向即切斷。換向閥：改變不同管路間的通﹑斷關(guān)系﹑根據(jù)閥芯在閥體中的工作位置數(shù)分兩位﹑三位等；根據(jù)所控制的通道數(shù)分兩通﹑三通﹑四通﹑五通等；根據(jù)閥芯驅(qū)動(dòng)方式分手動(dòng)﹑機(jī)動(dòng)﹑電動(dòng)﹑液動(dòng)等。三位四通換向閥的工作原理。P 為供油口，O 為回油口，A ﹑B 是通向執(zhí)行元件的輸出口。當(dāng)閥芯處?kù)吨形粫r(shí)，全部油口切斷，執(zhí)行元件不動(dòng)；當(dāng)閥芯移到右位時(shí)，P 與A 通，B 與O 通；當(dāng)閥芯移到左位時(shí)，P 與B 通，A 與O 通。