意大利ATOS比例閥主要體現在以下幾點： 1.驅(qu)動(dong)裝(zhuang)(zhuang)置不同。比(bi)例閥的驅(qu)動(dong)裝(zhuang)(zhuang)置是(shi)比(bi)例電磁(ci)鐵；伺服(fu)閥的驅(qu)動(dong)裝(zhuang)(zhuang)置是(shi)力馬達或力矩馬達； 2.性(xing)能參數(shu)不(bu)同(tong)。滯(zhi)環、中位死(si)區(qu)、頻寬、過濾精度(du)等特性(xing)不(bu)同(tong)，因此(ci)應用場合不(bu)同(tong)，伺(si)服閥和伺(si)服比例閥主要(yao)應用在(zai)閉環控(kong)制(zhi)系(xi)統，其它結構(gou)的比例閥主要(yao)應用在(zai)開(kai)環控(kong)系(xi)統及(ji)閉環速度(du)控(kong)制(zhi)系(xi)統； - 伺服閥中(zhong)位(wei)沒有死區(qu)，比例閥有中(zhong)位(wei)死區(qu)；
- 伺服閥的頻響（響應(ying)頻率）更高，可以高達200Hz左(zuo)右，比(bi)例閥一般zui高幾(ji)十Hz；
- 伺服閥對液(ye)(ye)壓油(you)液(ye)(ye)的要(yao)求更高，需(xu)要(yao)精過(guo)濾(lv)才行，否則(ze)容(rong)易(yi)堵塞，比例(li)閥要(yao)求低(di)一些(xie)；
3.閥(fa)(fa)芯結構(gou)及加工精度不同。比例閥(fa)(fa)采(cai)(cai)用閥(fa)(fa)芯+閥(fa)(fa)體結構(gou)，閥(fa)(fa)體兼作(zuo)閥(fa)(fa)套。伺服(fu)閥(fa)(fa)和伺服(fu)比例閥(fa)(fa)采(cai)(cai)用閥(fa)(fa)芯+閥(fa)(fa)套的結構(gou)。 4.中(zhong)位(wei)機能種類不同。比例換(huan)向閥具有與(yu)普通換(huan)向閥相似的中(zhong)位(wei)機能，而伺服閥中(zhong)位(wei)機能只有O型(xing)（Rexroth產品的E型(xing)）。 5.閥的額(e)定壓降不同。 電氣(qi)(qi)比(bi)例閥(fa)(fa)自動(dong)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)可分(fen)成(cheng)斷續(xu)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)和(he)連續(xu)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)。斷續(xu)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)即開(kai)關控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)。氣(qi)(qi)動(dong)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)系統(tong)(tong)中使(shi)用動(dong)作頻(pin)率較(jiao)低(di)的(de)(de)(de)開(kai)關式(shi)(ON-OFF)的(de)(de)(de)換向閥(fa)(fa)來控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)氣(qi)(qi)路的(de)(de)(de)通斷。靠減壓(ya)閥(fa)(fa)來調(diao)節所(suo)需(xu)要(yao)(yao)(yao)的(de)(de)(de)壓(ya)力，靠節流(liu)(liu)閥(fa)(fa)來調(diao)節所(suo)需(xu)要(yao)(yao)(yao)的(de)(de)(de)流(liu)(liu)量(liang)(liang)。這(zhe)種(zhong)傳統(tong)(tong)的(de)(de)(de)氣(qi)(qi)動(dong)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)系統(tong)(tong)要(yao)(yao)(yao)想要(yao)(yao)(yao)有多(duo)(duo)個(ge)輸(shu)出力和(he)多(duo)(duo)個(ge)運動(dong)速度，就需(xu)要(yao)(yao)(yao)多(duo)(duo)個(ge)減壓(ya)閥(fa)(fa)、節流(liu)(liu)閥(fa)(fa)及換向閥(fa)(fa)。這(zhe)樣，不僅元件需(xu)要(yao)(yao)(yao)多(duo)(duo)，成(cheng)本高，構成(cheng)系統(tong)(tong)復雜，且(qie)許多(duo)(duo)元件都需(xu)要(yao)(yao)(yao)預(yu)先(xian)進行人(ren)工(gong)調(diao)節。電氣(qi)(qi)比(bi)例閥(fa)(fa)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)屬于連續(xu)控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)，其特點是輸(shu)出量(liang)(liang)隨輸(shu)入量(liang)(liang)的(de)(de)(de)變(bian)化而變(bian)化，輸(shu)出量(liang)(liang)與輸(shu)入量(liang)(liang)之間存在一定的(de)(de)(de)比(bi)例關系。比(bi)例控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)有開(kai)環控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)和(he)閉環控(kong)(kong)制(zhi)(zhi)(zhi)(zhi)(zhi)之分(fen)。 意大利ATOS比例閥型(xing)號(hao)表(biao)： DKZOR-A-151-S5
DKZOR-A-151-S5/18 40
DKZOR-A-151-S5/B
DKZOR-A-153-L5/B
DKZOR-A-171-D5 40
DKZOR-A-171-L5
DKZOR-A-171-S5
DKZOR-A-171-S5/18
DKZOR-A-173-D5
DKZOR-A-173-L5
DKZOR-A-173-L5/18 40
DKZOR-A-173-L5/Y
DKZOR-A-173-S3
DKZOR-A-173-S5
DKZOR-A-173-S5/18
DKZOR-AE-171-L5 10
DKZOR-AE-171-S5
DKZOR-AE-171-S5 10/WG
DKZOR-AE-171-S5/Y 10
DKZOR-AE-173-D5 10
DKZOR-AE-173-L5 10
DKZORC-A-151-S5/18
DKZOR-T-151-L5
DKZOR-T-151-L5/Y
DKZOR-T-153-L5
DKZOR-T-171-D5
DKZOR-T-171-L5
DKZOR-T-171-S5
DKZOR-T-171-S5/Y
DKZOR-T-173-L5 40
DKZOR-TE-170-L5 40
DKZOR-TE-171-L5
DKZOR-TE-171-L5/I 40
DKZOR-TE-171-S5 |
