4WE10H33CG24N9K4力士樂電磁閥

4WE10H33/CG24N9K4力士樂電磁閥 德國博世力士樂REXROTH電磁閥 電磁換向閥

電磁閥是由電磁線圈和磁芯組成，是包含一個(gè)或幾個(gè)孔的閥體。當(dāng)線圈通電或斷電時(shí)，磁芯的運(yùn)轉(zhuǎn)將導(dǎo)致流體通過閥體或被切斷，以達(dá)到改變流體方向的目的。電磁閥的電磁部件由固定鐵芯、動鐵芯、線圈等部件組成；閥體部分由滑閥芯、滑閥套、彈簧底座等組成。電磁線圈被直接安裝在閥體上，閥體被封閉在密封管中，構(gòu)成一個(gè)簡潔、緊湊的組合。

電磁閥的故障應(yīng)從以下幾方面排查：

1、電磁閥接線頭松動或線頭脫落，電磁閥不得電，可緊固線頭。

2、電磁閥線圈燒壞，可拆下電磁閥的接線，用萬用表測量，如果開路，則電磁閥線圈燒壞。原因有線圈受潮，引起絕緣不好而漏磁，造成線圈內(nèi)電流過大而燒毀，因此要防止雨水進(jìn)入電磁閥。此外，彈簧過硬，反作用力過大，線圈匝數(shù)太少，吸力不夠也可使得線圈燒毀。緊急處理時(shí)，可將線圈上的手動按鈕由正常工作時(shí)的“0”位打到“1”位，使得閥打開。

3、電磁閥卡�。弘姶砰y的滑閥套與閥芯的配合間隙很�。ㄐ∮�0.008mm），一般都是單件裝配，當(dāng)農(nóng)業(yè)生產(chǎn)體系械雜質(zhì)帶入或潤滑油太少時(shí)，很容易卡住。處理方法可用鋼絲從頭部小孔捅入，使其彈回。根本的解決方法是要將電磁閥拆下，取出閥芯及閥芯套，用CCI4清洗，使得閥芯在閥套內(nèi)動作靈活。拆卸時(shí)應(yīng)注意各部件的裝配順序及外部接線位置，以便重新裝配及接線正確，還要檢查油霧器噴油孔是否堵塞，潤滑油是否足夠。

4、漏氣：漏氣會造成空氣壓力不足，使得強(qiáng)制閥的啟閉困難，原因是密封墊片損壞或滑閥磨損而造成幾個(gè)空腔竄氣。在處理切換系統(tǒng)的電磁閥故障時(shí)，應(yīng)選擇適當(dāng)?shù)臅r(shí)機(jī)，等該電磁閥處于失電時(shí)進(jìn)行處理，若在一個(gè)切換間隙內(nèi)處理不完，可將切換系統(tǒng)暫停，從容處理。

電磁閥供應(yīng)型號

WE型電磁換向閥采用濕式交流或直流電磁鐵。該閥是通過電磁鐵控制閥芯的不同工作位置。當(dāng)電磁鐵斷電時(shí)，閥芯靠彈簧壓力保持在中間或終端位置(脈沖式閥除外)。電磁鐵通電，閥芯被推到工作位置上，斷電后又恢復(fù)到初始狀態(tài)。這時(shí)用手推動故障檢查按鈕可使閥芯移動。

由于濕式電磁鐵內(nèi)部與回油腔相通，這樣銜鐵油里移動，可以減少磨損、緩沖，并且提高了散熱性能，提高了使用壽命。交流電磁鐵具有動作時(shí)間短，電氣控制線路簡單，不需特殊的觸頭保護(hù)等特點(diǎn)。直流電磁鐵是切換特性軟，動作頻率高，對過載或低電壓反應(yīng)不敏感，工作可靠。

WE型換向閥是由電磁鐵控制的滑閥式換向閥，它主要用于控制液體的通斷和流動方向。

其結(jié)構(gòu)主要是由閥體、電磁鐵、滑閥以及復(fù)位彈簧等組成。在不通電的情況下被復(fù)位彈簧保持在中間位置或初始位置上(脈沖閥除外)。電磁鐵的推力通過推桿作用在滑閥上，并且把它從靜止位置推到工作位置上(終端位置)，由此改變了液流的方向P→A和B→T或者P→B和A→T。當(dāng)電磁鐵斷電后，滑閥被復(fù)位彈簧重新推到原來的靜止位置上。在電磁鐵斷電時(shí)，用故障檢查按鈕推動滑閥移動。

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電磁閥實(shí)際上由兩部分組成：2位2通的液壓閥部分，加上一個(gè)電磁鐵。2位2通閥是開通，還是關(guān)閉，是由電磁鐵推動閥芯運(yùn)動來實(shí)現(xiàn)的。有的閥電磁鐵通電時(shí)打開，有的閥電磁鐵斷電時(shí)打開，蘿目青菜個(gè)人各愛（根據(jù)系統(tǒng)要求選擇）。也就是說，電磁閥這里有一條通路一頭與先導(dǎo)溢流閥的某個(gè)部位相連，另一頭通過油管與油箱相連。通過操作電磁鐵可以讓先導(dǎo)溢流閥的某個(gè)部位或者與油箱相通，或者不與油箱相通。