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atos比例閥RZGO-AE-033/315/I 10
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適(shi)用(yong)性(xing)(xing)(xing) 管路中的(de)(de)(de)流體(ti)必須(xu)和(he)(he)選(xuan)(xuan)用(yong)的(de)(de)(de)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)系列型(xing)號中標定(ding)(ding)的(de)(de)(de)介(jie)質(zhi)一(yi)(yi)致. 流體(ti)的(de)(de)(de)溫度必須(xu)小(xiao)于(yu)(yu)(yu)(yu)選(xuan)(xuan)用(yong)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)標定(ding)(ding)溫度. 電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)允許液(ye)體(ti)粘度一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)在(zai) 20CST 以(yi)下,大(da)(da)于(yu)(yu)(yu)(yu) 20CST 應(ying)注(zhu)(zhu)(zhu)明. 工(gong)作(zuo)壓(ya)差(cha)(cha),管路壓(ya)差(cha)(cha)在(zai)小(xiao)于(yu)(yu)(yu)(yu) 0.04MPa 時(shi)應(ying)選(xuan)(xuan)用(yong)如 ZS,2W,ZQDF,ZCM 系列等直動(dong)式(shi)(shi)和(he)(he)分步直動(dong)式(shi)(shi); 工(gong)作(zuo)壓(ya)差(cha)(cha)大(da)(da)于(yu)(yu)(yu)(yu) 0.04MPa 時(shi) 可(ke)選(xuan)(xuan)用(yong)先(xian)導式(shi)(shi)(壓(ya)差(cha)(cha)式(shi)(shi))電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa);工(gong)作(zuo)壓(ya)差(cha)(cha)應(ying) 小(xiao)于(yu)(yu)(yu)(yu)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)大(da)(da)標定(ding)(ding)壓(ya)力(li);一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)都是單向工(gong)作(zuo),因(yin)此要(yao)(yao)注(zhu)(zhu)(zhu) 意(yi)是否(fou)有(you)反壓(ya)差(cha)(cha),如有(you)安(an)裝止回閥(fa)(fa)(fa)(fa)(fa). 流體(ti)清潔度不(bu)高時(shi)應(ying)在(zai)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)前(qian)安(an)裝過(guo)濾器,一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)對(dui)介(jie)質(zhi)要(yao)(yao)求清潔度要(yao)(yao)好. 注(zhu)(zhu)(zhu)意(yi)流量孔徑和(he)(he)接管口(kou)徑;電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)只有(you)開關兩位控制;條(tiao)件允 許請安(an)裝旁(pang)路管,便于(yu)(yu)(yu)(yu)維修;有(you)水錘現象(xiang)時(shi)要(yao)(yao)定(ding)(ding)制電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)開閉(bi)時(shi) 間(jian)調節. 注(zhu)(zhu)(zhu)意(yi)環(huan)境溫度對(dui)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)影響 電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)流和(he)(he)消耗功(gong)率應(ying)根據輸出容量選(xuan)(xuan)取,電(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)壓(ya)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)允許 ±10%左右,必須(xu)注(zhu)(zhu)(zhu)意(yi)交流起動(dong)時(shi) VA 值較高. 二(er),可(ke)靠性(xing)(xing)(xing) 電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)分為常(chang)(chang)閉(bi)和(he)(he)常(chang)(chang)開二(er)種;一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)選(xuan)(xuan)用(yong)常(chang)(chang)閉(bi)型(xing),通電(dian)(dian)(dian)打開,斷電(dian)(dian)(dian)關 閉(bi);但在(zai)開啟時(shi)間(jian)很(hen)(hen)長(chang)關閉(bi)時(shi)很(hen)(hen)短時(shi)要(yao)(yao)選(xuan)(xuan)用(yong)常(chang)(chang)開型(xing)了(le). 壽命試驗,工(gong)廠(chang)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)屬(shu)于(yu)(yu)(yu)(yu)型(xing)式(shi)(shi)試驗項目,確切地(di)說我國(guo)還沒有(you)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci) 閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)專業標準(zhun),因(yin)此選(xuan)(xuan)用(yong)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)廠(chang)家時(shi)慎重. 動(dong)作(zuo)時(shi)間(jian)很(hen)(hen)短頻(pin)率較高時(shi)一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)選(xuan)(xuan)取直動(dong)式(shi)(shi),大(da)(da)口(kou)徑選(xuan)(xuan)用(yong)快速(su)系列. 三(san),安(an)全性(xing)(xing)(xing) 一(yi)(yi)般(ban)(ban)(ban)(ban)(ban)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)不(bu)防(fang)(fang)(fang)水, 在(zai)條(tiao)件不(bu)允許時(shi)請選(xuan)(xuan)用(yong)防(fang)(fang)(fang)水型(xing), 工(gong)廠(chang)可(ke)以(yi)定(ding)(ding)做. 電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)的(de)(de)(de)標定(ding)(ding)公稱壓(ya)力(li)一(yi)(yi)定(ding)(ding)要(yao)(yao)超過(guo)管路內的(de)(de)(de)壓(ya)力(li),否(fou)則(ze)使 用(yong)壽命會縮短或產(chan)生其它意(yi)外(wai)情況. 有(you)腐蝕(shi)性(xing)(xing)(xing)液(ye)體(ti)的(de)(de)(de)應(ying)選(xuan)(xuan)用(yong)全不(bu)銹(xiu)鋼型(xing),強(qiang)腐蝕(shi)性(xing)(xing)(xing)流體(ti)宜選(xuan)(xuan)用(yong)塑料王 (SLF)電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa). 爆炸性(xing)(xing)(xing)環(huan)境必須(xu)選(xuan)(xuan)用(yong)相應(ying)的(de)(de)(de)防(fang)(fang)(fang)爆產(chan)品. 四,經(jing)濟性(xing)(xing)(xing) 有(you)很(hen)(hen)多電(dian)(dian)(dian)磁(ci)(ci)(ci)(ci)閥(fa)(fa)(fa)(fa)(fa)可(ke)以(yi)通用(yong),但在(zai)能滿足以(yi)上(shang)三(san)點(dian)的(de)(de)(de)基(ji)礎上(shang)應(ying)選(xuan)(xuan)用(yong)的(de)(de)(de)產(chan)品
之間的(de)差別并沒(mei)有嚴格的(de)規(gui)定(ding),因為比例閥(fa)的(de)性(xing)能越(yue)來越(yue)好,逐(zhu)漸向(xiang)伺服閥(fa)靠(kao)近,所以近些年(nian)出現了比例伺服閥(fa)。
1.驅(qu)動(dong)裝(zhuang)(zhuang)置(zhi)不同。比(bi)例閥的驅(qu)動(dong)裝(zhuang)(zhuang)置(zhi)是(shi)比(bi)例電磁(ci)鐵;伺服閥的驅(qu)動(dong)裝(zhuang)(zhuang)置(zhi)是(shi)力馬達(da)或(huo)力矩馬達(da);
2.性能參數不同(tong)。滯環(huan)、中位死區、頻寬(kuan)、過濾精度(du)等(deng)特性不同(tong),因此應(ying)用(yong)場合不同(tong),伺服(fu)閥和伺服(fu)比例閥主要應(ying)用(yong)在(zai)閉環(huan)控制系(xi)統,其它結構的比例閥主要應(ying)用(yong)在(zai)開(kai)環(huan)控系(xi)統及閉環(huan)速度(du)控制系(xi)統;
2.1 伺服閥(fa)中位(wei)沒有死(si)(si)區,比例閥(fa)有中位(wei)死(si)(si)區;
2.2 伺服(fu)閥的頻(pin)響(響應頻(pin)率)更高,可以高達200Hz左(zuo)右,比例閥一般幾十Hz;
2.3 伺服(fu)閥對液(ye)壓油(you)液(ye)的(de)要求(qiu)更高(gao),需要經(jing)過濾(lv)才行,否則容易堵塞,比(bi)例(li)閥要求(qiu)低(di)一些(xie);
3.閥(fa)芯結構及加(jia)工精度不(bu)同。比例閥(fa)采(cai)用閥(fa)芯+閥(fa)體(ti)結構,閥(fa)體(ti)兼作閥(fa)套。伺服(fu)閥(fa)和伺服(fu)比例閥(fa)采(cai)用閥(fa)芯+閥(fa)套的結構。
4.中(zhong)(zhong)位(wei)機(ji)能(neng)種類不(bu)同。比例換向(xiang)閥具有(you)與普通換向(xiang)閥相(xiang)似的中(zhong)(zhong)位(wei)機(ji)能(neng),而伺服閥中(zhong)(zhong)位(wei)機(ji)能(neng)只有(you)O型(Rexroth產品的E型)。
5.閥的額(e)定壓降不同。
而比例伺服閥性(xing)能介于(yu)伺服閥和比例閥之間。
比(bi)例換向(xiang)閥屬于比(bi)例閥的一(yi)種,用來控制流量和流向(xiang)。
atos比例閥RZGO-AE-033/315/I 10