美國威格士電磁閥，VICKERS葉片泵伊頓和威格士擁有的產(chǎn)品品牌：Eaton、vickers、char-lynn、aeroquip和hydroline等等，包括全部液壓產(chǎn)品線，可以為廣大用戶提供動力源、控制元件、執(zhí)行器、連接件、污染控制和全套的液壓系統(tǒng)。 　　威格士流體動力的主要市場包括建筑、農(nóng)業(yè)、傳統(tǒng)工業(yè)、冶金、礦山、船舶、園藝、和風(fēng)電等。依靠其*的分銷網(wǎng)絡(luò)，無論用戶在何處都可以享受到威格士流體動力提供的快捷便利的服務(wù)，從傳統(tǒng)工業(yè)到行走機(jī)械，從單個元件到整個液壓系統(tǒng)，威格士流體動力是您在范圍內(nèi)液壓產(chǎn)品的可靠伙伴。
VICKERS子母葉片泵特點(diǎn)
　　1、子母葉片的結(jié)構(gòu)設(shè)計，減少了葉片對定子的沖擊，在較高的工作壓力和高轉(zhuǎn)速下，性能更穩(wěn)定，壽命更長。 　　2、子母葉片結(jié)構(gòu)本身具有低噪音的特性。12葉片的設(shè)計、流量脈動很小，噪音更低。 　　3、多排量的選擇。以及泵芯的插裝式結(jié)構(gòu)，使用戶使用更靈活，維修更方便。 　　公司理念 　　VICKERS威格士流體動力，打造您值得信賴的液壓產(chǎn)
VICKERS電磁閥原理
美國威格士電磁閥，VICKERS葉片泵　　VICKERS電磁閥和安全閥為一體，組成先導(dǎo)式壓力閥，該閥即是卸荷閥又是安全閥，有時又是溢流閥．卸荷時其控制油道貫穿各路換向閥，同前述卸荷油道．當(dāng)各路換向閥處于中立位置時，卸荷閥的控制油道（見圖1b和圖2）貫穿各路換向閥并與油箱連通．卸荷時，大部分油液卸荷，通道短，壓力損失低．任一路閥換向工作，便切斷控制油道，油源來油就從換向閥進(jìn)入執(zhí)行元件工作，其工作壓力大小由導(dǎo)閥控制．此時系統(tǒng)壓力為導(dǎo)閥調(diào)整壓力．該種卸荷方式，即使換向閥路數(shù)增加，只是控制油道增加，卸荷壓力增加不大，始終保持較低卸荷壓力，此種卸荷方式多用于手動換向閥，卸荷可靠． 　　VICKERS電磁閥（又是安全閥）的主閥按配合形式不同可分為三級同心、二級同心和滑閥式三類．其中滑閥式結(jié)構(gòu)工作壓力低，控制壓力精度不高；三級同心結(jié)構(gòu)雖成熟，目前應(yīng)用較廣，但與二級同心式比較，不及二級同心式動作靈敏，規(guī)格相同，行程相同時，二級同心結(jié)構(gòu)的通油能力遠(yuǎn)大于三級同心結(jié)構(gòu)；二級同心式控制壓力穩(wěn)定，加工工藝性好，二級同心式應(yīng)用前景廣闊，這里以二級同心結(jié)構(gòu)，討論其結(jié)構(gòu)尺寸設(shè)計方法． 　　VICKERS電磁閥出來的先導(dǎo)油控制主換向閥閥芯的移動，使工作泵的來油進(jìn)入動臂油缸實(shí)現(xiàn)動臂上升。比例先導(dǎo)減壓閥的輸出壓力越大，控制主換向閥閥芯的位移越大，主換向閥通過的流量越大，動臂上升的速度越快。當(dāng)操作手柄拉*限位置時，手柄中的限位電磁鐵通電，手柄在極限位置被吸合。動臂以zui大的速度上升，當(dāng)升至動臂上位限位開關(guān)所限定的位置時，操作手柄限位電磁鐵斷電，手柄自動恢復(fù)到中位，動臂就可保持在所限定的位置。在動臂上升的過程中，若需要動臂在某一位置停留，則需將操作手柄退回中位。 　　VICKERS電磁閥主要用在電氣液壓伺服系統(tǒng)中作為執(zhí)行元件（見液壓伺服系統(tǒng)）。在伺服系統(tǒng)中，液壓執(zhí)行機(jī)構(gòu)同電氣及氣動執(zhí)行機(jī)構(gòu)相比，具有快速性好、單位重量輸出功率大、傳動平穩(wěn)、抗干擾能力強(qiáng)等特點(diǎn)。另一方面，在伺服系統(tǒng)中傳遞信號和校正特性時多用電氣元件。因此，現(xiàn)代高性能的伺服系統(tǒng)也都采用電液方式，伺服閥就是這種系統(tǒng)的必需元件。
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