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(hào)：R900925687 4WRAE10W1-30-22/G24N9K31/F1V??2臺(tái)

D634-371C?R24K02MONSS2 ???3臺(tái)DG4V-3-6C-M-U-H7-60 ???10臺(tái)

DG4V-3-2N-M-U-H7-60 ???15臺(tái)DG4V-3-2A-M-U-H7-60 ???10臺(tái)?無桿腔流量控制是通過檢測(cè)連接到無桿腔側(cè)閥前后兩側(cè)的壓差，再根據(jù)所需流入或流出流量的多少，計(jì)算出閥芯開口大小；有桿腔側(cè)采用壓力控制，使該側(cè)維持一個(gè)低值的壓力，使得更加節(jié)能、高效。?
由于我們?cè)跓o桿腔采用了流量控制，因此原控制系統(tǒng)中所用的平衡閥可用一個(gè)液控單向閥來代替。這樣可消除因平衡閥所帶來的系統(tǒng)不穩(wěn)定，從而提高系統(tǒng)穩(wěn)定性。?
（2）負(fù)載方向在工作過程中發(fā)生改變?
在這種情況下，采取“進(jìn)油側(cè)壓力控制，出油側(cè)流量控制”，在液壓缸有桿腔側(cè)用壓力控制，無桿腔側(cè)有流量控制。?
如負(fù)載方向不變，由于出油側(cè)采取了流量控制，我們可將雙向平衡閥用液控單向閥來替換，從而提高系統(tǒng)的穩(wěn)定性。進(jìn)油側(cè)用壓力控制器來維持一個(gè)較低的參考?jí)毫?，一方面提高系統(tǒng)效率，另一方面使系統(tǒng)不發(fā)生氣穴。?
為了使負(fù)載方向變化的工作機(jī)構(gòu)能得到很好控制，另外一個(gè)PI控制器將被運(yùn)用到有桿腔的壓力控制器中，當(dāng)負(fù)載方向改變后，無桿腔的壓力將減??；如果仍將有桿腔維持一個(gè)很低的壓力，當(dāng)負(fù)載很大時(shí)，液壓缸將向反方向運(yùn)動(dòng)。此時(shí)我們可用所增加的PI控制器監(jiān)視無桿腔壓力的變化，當(dāng)PI控制器檢測(cè)到無桿腔壓力低于所設(shè)定的參考值時(shí)
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