?D634-501A原裝現(xiàn)貨G761-003武穴黎翔機(jī)電設(shè)備有限公司，詢價聯(lián)系人：何女士
詢價電話：0713-6542758，手機(jī)：18934630908 ???
詢價傳真：0713-6542758
詢價QQ: 736567721,704552157
現(xiàn)貨特價型號：R900925687 4WRAE10W1-30-22/G24N9K31/F1V??2臺
D634-371C?R24K02MONSS2 ???3臺DG4V-3-6C-M-U-H7-60 ???10臺
DG4V-3-2N-M-U-H7-60 ???15臺DG4V-3-2A-M-U-H7-60 ???10臺
H-507848 ?????????????30只 ?3DR16P5-5X/100Y/00M ???1臺
R900909219 4WS2EM10-52/75B11ET315K31EV
0811402141 DBETBEX-1X/315G24K31F1M?????2臺G761-3001B
G761-3002B G761-3004B D634-501A
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moog穆格伺服閥G761-3003 H19JOFM4VP 我們知道，對于汽車起重機(jī)、挖掘機(jī)、裝載機(jī)等而言，其液壓缸在整個工作過程中負(fù)載方向始終維持不變。下面以起重機(jī)變幅液壓缸為例來探討雙閥芯的控制策略。?
起重機(jī)變幅缸在工作過程中其受力，負(fù)載方向始終保持不變，因此我們可以采取液壓缸有桿控用壓力控制、無桿腔用流量控制的控制策略。?
無桿腔流量控制是通過檢測連接到無桿腔側(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，計算出閥芯開口大??；有桿腔側(cè)采用壓力控制，使該側(cè)維持一個低值的壓力，使得更加節(jié)能、高效。?
由于我們在無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液控單向閥來代替。這moog穆格伺服閥G761-3003 H19JOFM4VPL
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moog穆格伺服閥G761-3018B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較低的參考壓力，一方面提高系統(tǒng)效率，另一方面使系統(tǒng)不發(fā)生氣穴。?
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