意大利MARZOCCHI馬祖奇齒輪泵，風力發(fā)電泵，液壓高壓油泵
ALP1A-D-11，ALP1A-D-11-FG，ALP1A-D-13，ALP1A-D-13-FG，ALP1A-D-16，ALP1A-D-16-FG，ALP1A-D-2，ALP1A-D-20，ALP1A-D-20-FG，ALP1A-D-2-FG，ALP1A-D-3，ALP1A-D-3-FG，ALP1A-D-4，ALP1A-D-4-FG，ALP1A-D-5，ALP1A-D-5-FG，ALP1A-D-6，ALP1A-D-6-FG，ALP1A-D-7，ALP1A-D-7-FG，ALP1A-D-9，ALP1A-D-9-FG，ALP1-D-11，ALP1-D-11-FG，ALP1-D-13，ALP1-D-13-FG，ALP1-D-16，ALP1-D-16-FG，ALP1-D-2，ALP1-D-20，ALP1-D-20-FG，ALP1-D-2-FG，ALP1-D-3，ALP1-D-3-FG，ALP1-D-4，ALP1-D-4-FG，ALP1-D-5，ALP1-D-5-FG，ALP1-D-6，ALP1-D-6-FG，ALP1-D-7，ALP1-D-7-FG，ALP1-D-9，ALP1-D-9-FG，ALP2A-D-10，ALP2A-D-10-FG，ALP2A-D-12，ALP2A-D-12-FG，ALP2A-D-13，ALP2A-D-13-FG，ALP2A-D-16，ALP2A-D-16-FG，ALP2A-D-20，ALP2A-D-20-FG，ALP2A-D-22，ALP2A-D-22-FG，ALP2A-D-25，ALP2A-D-25-FG，ALP2A-D-30，ALP2A-D-30-FG，ALP2A-D-34，ALP2A-D-34-FG，ALP2A-D-37，ALP2A-D-37-FG，ALP2A-D-40，ALP2A-D-40-FG，ALP2A-D-50，ALP2A-D-50-FG，ALP2A-D-6，ALP2A-D-6-FG，ALP2A-D-9，ALP2A-D-9-FG，ALP2-D-10，ALP2-D-10-FG，ALP2-D-12，ALP2-D-12-FG，ALP2-D-13，ALP2-D-13-FG，ALP2-D-16，ALP2-D-16-FG，ALP2-D-20，ALP2-D-20-FG，ALP2-D-22，ALP2-D-22-FG，ALP2-D-25，ALP2-D-25-FG，ALP2-D-30，ALP2-D-30-FG，ALP2-D-34，ALP2-D-34-FG，ALP2-D-37，ALP2-D-37-FG，ALP2-D-40，ALP2-D-40-FG，ALP2-D-50，ALP2-D-50-FG，ALP2-D-6，ALP2-D-6-FG，ALP2-D-9，ALP2-D-9-FG，ALP3A-D-110，ALP3A-D-120，ALP3A-D-135，ALP3A-D-30，ALP3A-D-33，ALP3A-D-40，ALP3A-D-50，ALP3A-D-60，ALP3A-D-66，ALP3A-D-80，ALP3A-D-94，ALP3-D-110，ALP3-D-120，ALP3-D-135，ALP3-D-30，ALP3-D-33，ALP3-D-40，ALP3-D-50，ALP3-D-60，ALP3-D-66，ALP3-D-80，ALP3-D-94，GHP1A2-D-11，GHP1A2-D-13，GHP1A2-D-16，GHP1A2-D-2，GHP1A2-D-20，GHP1A2-D-3，GHP1A2-D-4，GHP1A2-D-5，GHP1A2-D-6，GHP1A2-D-7，GHP1A2-D-9，GHP1A-D-11，GHP1A-D-11-RA，GHP1A-D-13，GHP1A-D-13-RA，GHP1A-D-16，GHP1A-D-16-RA，GHP1A-D-20，GHP1A-D-20-RA，GHP1A-D-2-RA，GHP1A-D-3，GHP1A-D-3-RA，GHP1A-D-4，GHP1A-D-4-RA，GHP1A-D-5，GHP1A-D-5-RA，GHP1A-D-6，GHP1A-D-6-RA，GHP1A-D-7，GHP1A-D-7-RA，GHP1A-D-9，GHP1AQ-D-11，GHP1AQ-D-13，GHP1AQ-D-16，GHP1AQ-D-2，GHP1AQ-D-20，GHP1AQ-D-3，GHP1AQ-D-4，GHP1AQ-D-5，GHP1AQ-D-6，GHP1AQ-D-7，GHP1AQ-D-9，GHP1-D-11，GHP1-D-11-RA，GHP1-D-13，GHP1-D-13-RA，GHP1-D-16，GHP1-D-16-RA，GHP1-D-2，GHP1-D-20，GHP1-D-20-RA，GHP1-D-2-RA，GHP1-D-3，GHP1-D-3-RA，GHP1-D-4，GHP1-D-4-RA，GHP1-D-5，GHP1-D-5-RA，GHP1-D-6，GHP1-D-6-RA，GHP1-D-7，GHP1-D-7-RA，GHP1-D-9，GHP2A3-D-10，GHP2A3-D-12，GHP2A3-D-13，GHP2A3-D-16，GHP2A3-D-20，GHP2A3-D-22，GHP2A3-D-25，GHP2A3-D-30，GHP2A3-D-34，GHP2A3-D-37，GHP2A3-D-40，GHP2A3-D-50，GHP2A3-D-6，GHP2A3-D-9，GHP2A-D-10，GHP2A-D-10-FG，GHP2A-D-10-KA，GHP2A-D-12，GHP2A-D-12-KA，GHP2A-D-13，GHP2A-D-13-FG，GHP2A-D-13-KA，GHP2A-D-16，GHP2A-D-16-FG，GHP2A-D-16-KA，GHP2A-D-20，GHP2A-D-20-FG，GHP2A-D-20-KA，GHP2A-D-22，GHP2A-D-22-FG，GHP2A-D-22-KA，GHP2A-D-25，GHP2A-D-25-FG，GHP2A-D-25-KA，GHP2A-D-30，GHP2A-D-30-FG，GHP2A-D-34，GHP2A-D-34-FG，GHP2A-D-37，GHP2A-D-40，GHP2A-D-40-FG，GHP2A-D-50，GHP2A-D-50-FG，GHP2A-D-6，GHP2A-D-6-FG，GHP2A-D-6-KA，GHP2A-D-9，GHP2A-D-9-FG，GHP2A-D-9-KA，GHP2-D-10，GHP2-D-12，GHP2-D-13，GHP2-D-16，GHP2-D-20，GHP2-D-22，GHP2-D-25，GHP2-D-30，GHP2-D-34，GHP2-D-37，GHP2-D-40，GHP2-D-50，GHP2-D-6，GHP2-D-9，GHP3A2-D-110，GHP3A2-D-120，GHP3A2-D-135，GHP3A2-D-30，GHP3A2-D-33，GHP3A2-D-40，GHP3A2-D-50，GHP3A2-D-60，GHP3A2-D-66，GHP3A2-D-80，GHP3A2-D-94，GHP3A-D-110，GHP3A-D-110-FG，GHP3A-D-120，GHP3A-D-120-FG，GHP3A-D-135，GHP3A-D-135-FG，GHP3A-D-30，GHP3A-D-30-FG，GHP3A-D-33，GHP3A-D-33-FG，GHP3A-D-40，GHP3A-D-40-FG，GHP3A-D-50，GHP3A-D-50-FG，GHP3A-D-60，GHP3A-D-60-FG，GHP3A-D-66，GHP3A-D-66-FG，GHP3A-D-80，GHP3A-D-80-FG，GHP3A-D-94，GHP3A-D-94-FG，GHP3-D-110，GHP3-D-120，GHP3-D-135，GHP3-D-30，GHP3-D-33，GHP3-D-40，GHP3-D-50，GHP3-D-60，GHP3-D-66，GHP3-D-80，GHP3-D-94
液壓系統(tǒng)常見保壓回路
液壓系統(tǒng)油路中保壓回路可使執(zhí)行元件在某個工作階段內(nèi)的壓力保持恒定不變。今天主要給大家介紹下常見的幾個保壓回路。
(1)用限壓式變量泵保壓的回路
圖7-55中液壓缸直接由限壓式變量泵補油，可以長期保持壓力穩(wěn)定。變量泵輸油量能隨需要自動調(diào)整，回路效率較高。
(2)用蓄能器的保壓回路
圖7-56中蓄能器中的高壓油與液壓油缸高壓腔相通，補償系統(tǒng)的泄漏。蓄能器出口有單向節(jié)流閥，其作用是防止換向閥切換時，蓄能器突然泄壓而造成沖擊。本回路適用于保壓時間長、壓力穩(wěn)定性要求高的場合。
(3)用液控單向閥的保壓回路
圖7-57中，在缸的進油路上串聯(lián)一個液控單向閥，利用錐形閥座的密封性能實現(xiàn)保壓。若采用電接觸式壓力表，可控制壓力波動范圍和補壓動作。
當壓力上升至上觸點調(diào)定壓力時。上觸點接通，IDT斷電，泵卸載，系統(tǒng)由液控單向閥保壓。當壓力下降至下觸點調(diào)定壓力時、1DT通電，泵又供油，使壓力回升。該回路適于保壓時間不太長、保壓穩(wěn)定性要求不太高（壓力變化為1～2MPa），但要求功率損失較小的場合。
(4) 一缸動作一缸保壓的回路
圖7-58中液壓缸2由在運動中的液壓缸的回油腔持續(xù)補油保壓，壓力大小由背壓閥3調(diào)定。該回路保壓質(zhì)量高，但功率損失大，只適用于一缸動作一缸保壓的場合。
本文由蘇州逐利機電整理發(fā)布，如需轉(zhuǎn)載請瀏覽來源及出處，原文地址：http://m.nochef.cn/chanpin/820.html
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