G761-3002B特價(jià)現(xiàn)貨伺服閥J761-001
武穴黎翔機(jī)電設(shè)備有限公司，詢價(jià)聯(lián)系人：何女士
詢價(jià)電話：0713-6542758，手機(jī)：18934630908
詢價(jià)傳真：0713-6542758
詢價(jià)QQ: 736567721,704552157
現(xiàn)貨特價(jià)型號：4WEH16E7X/6HG24N9ETK4/B10 2臺
由于電磁鐵推力的限制，在大于63L/min的液壓系統(tǒng)中，一般不再選用直推式的電磁換向閥，而選用通過流量較大的電液換向閥。電液換向閥的原理是：控制油通過電磁先導(dǎo)閥到達(dá)電液閥主閥芯的兩端（即電液換向閥主閥體兩端蓋側(cè)），通過電磁先導(dǎo)閥的換向，來實(shí)現(xiàn)主閥芯的左右移動，從而開通或切斷通往執(zhí)行元件的油路，使執(zhí)行元件運(yùn)行或停止。但在打開或切斷油路的瞬間，系統(tǒng)中會產(chǎn)生相當(dāng)大的沖擊，這種沖擊會極大影響液壓系統(tǒng)中液壓元件和密封件的使用壽命。為了減小及至消除由此引起的液壓沖擊，最簡單的辦法是在該電液閥下面疊加一個(gè)P口節(jié)流閥或進(jìn)油節(jié)流式雙單向節(jié)流閥、出油節(jié)流式雙單向節(jié)流閥，以延長閥芯的換向及復(fù)位時(shí)間，從而到降低液壓沖擊的目的。下面就以彈簧復(fù)位型、三位四通中封式電液壓換向閥為例、對該三種疊加節(jié)流方式作簡要說明。
一、疊加一個(gè)P口可調(diào)節(jié)流閥：控制油先通過疊加可調(diào)節(jié)流閥、到達(dá)電磁先導(dǎo)閥的P口，通過電磁先導(dǎo)閥的換向及調(diào)整節(jié)流閥的開度，來實(shí)現(xiàn)主閥芯的換向延時(shí)，從而達(dá)到降低主油路與執(zhí)行元件接通時(shí)的換向沖擊。但先導(dǎo)電磁閥斷電時(shí)、彈簧復(fù)位型電液換向閥主閥體兩端蓋內(nèi)的液壓油會通過先導(dǎo)電磁閥的中位與泄油口接通、主閥芯在復(fù)位彈簧的作用下會立即復(fù)位，moog穆格伺服閥G631-3704A
moog穆格伺服閥G631-3800
moog穆格伺服閥G631-3800B
moog穆格伺服閥G631-3806B
moog穆格伺服閥G761-001
moog穆格伺服閥G761-002
moog穆格伺服閥G761-003
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moog穆格伺服閥G761-005
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moog穆格伺服閥G761-3001
moog穆格伺服閥G761-3001 H04JOFM4VPL
moog穆格伺服閥G761-3001-5
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moog穆格伺服閥G761-3002-5
moog穆格伺服閥G761-3002B
moog穆格伺服閥G761-3003
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由于主閥芯復(fù)位快、亦即切斷執(zhí)行元件油路的速度快、從而引起液壓沖擊。由此可見，疊加一個(gè)P口可調(diào)節(jié)流閥，只能實(shí)現(xiàn)換向接通延時(shí)、不能解決復(fù)位切斷延時(shí)。注：象油缸類的執(zhí)行元件，油缸前進(jìn)與后退時(shí)通過換向閥的流量是不一致的，油缸無桿腔與有桿腔的面積比越大、流量差距也越大，此時(shí)若想較滿意的降低執(zhí)行元件前進(jìn)與后退時(shí)的液壓沖擊G040-123-001
G122-202A001
G122-824-002
G122-828A-017
G122-829-001
G123-815A-001
G631-3002B
G631-3004B
G631-3004B-H40JOFM4VBR
G631-3005
G631-3005B
G631-3006B
G761-3001
G761-3001B
G761-3002
G761-3002B
G761-3003
G761-3003B
G761-3003B5
G761-3004
G761-3004B
G761-3004B5
G761-3005
G761-3007
G761-3007B
G761-3008
G761-3008-H19JOGM4VPH
G761-3009B
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G761-3602Bmoog穆格伺服閥G761-3002B
moog穆格伺服閥G761-3003
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moog穆格伺服閥G761-3005 S63JOGM4VPL
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