意大利ATOS比例閥主要體現在以下幾點： 1.驅(qu)(qu)動(dong)裝(zhuang)置不同。比例閥(fa)的(de)驅(qu)(qu)動(dong)裝(zhuang)置是比例電(dian)磁鐵；伺(si)服閥(fa)的(de)驅(qu)(qu)動(dong)裝(zhuang)置是力馬達或力矩(ju)馬達； 2.性(xing)能參(can)數不(bu)同。滯環、中位死區、頻寬、過濾(lv)精度等特性(xing)不(bu)同，因此應用(yong)場合不(bu)同，伺(si)(si)服(fu)閥和伺(si)(si)服(fu)比例(li)閥主(zhu)(zhu)要應用(yong)在閉環控(kong)制系(xi)統(tong)，其它結構(gou)的比例(li)閥主(zhu)(zhu)要應用(yong)在開(kai)環控(kong)系(xi)統(tong)及閉環速度控(kong)制系(xi)統(tong)； - 伺服閥中(zhong)位沒有死(si)區，比例閥有中(zhong)位死(si)區；
- 伺服閥(fa)的頻(pin)響(xiang)（響(xiang)應頻(pin)率）更高，可以高達(da)200Hz左右(you)，比例閥(fa)一般zui高幾十Hz；
- 伺(si)服閥對液(ye)壓(ya)油液(ye)的要求(qiu)(qiu)更高，需要精過濾才(cai)行，否則容易(yi)堵(du)塞，比(bi)例閥要求(qiu)(qiu)低一些；
3.閥(fa)(fa)芯(xin)(xin)結(jie)構(gou)及加工精度不(bu)同。比(bi)例閥(fa)(fa)采(cai)用閥(fa)(fa)芯(xin)(xin)+閥(fa)(fa)體結(jie)構(gou)，閥(fa)(fa)體兼作閥(fa)(fa)套(tao)。伺服(fu)閥(fa)(fa)和伺服(fu)比(bi)例閥(fa)(fa)采(cai)用閥(fa)(fa)芯(xin)(xin)+閥(fa)(fa)套(tao)的結(jie)構(gou)。 4.中(zhong)(zhong)位機(ji)能(neng)種類不同。比例換向(xiang)閥具有與普通(tong)換向(xiang)閥相似(si)的(de)中(zhong)(zhong)位機(ji)能(neng)，而伺(si)服閥中(zhong)(zhong)位機(ji)能(neng)只有O型（Rexroth產(chan)品的(de)E型）。 5.閥的額定壓降不同(tong)。 電氣(qi)比例(li)閥(fa)(fa)(fa)自(zi)動(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)可分成斷(duan)續控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)和連續控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)。斷(duan)續控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)即開(kai)(kai)關控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)。氣(qi)動(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)系(xi)統(tong)中使用動(dong)作頻(pin)率較(jiao)低的(de)(de)(de)(de)開(kai)(kai)關式(ON-OFF)的(de)(de)(de)(de)換(huan)向(xiang)閥(fa)(fa)(fa)來(lai)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)氣(qi)路的(de)(de)(de)(de)通斷(duan)。靠減壓(ya)(ya)閥(fa)(fa)(fa)來(lai)調節(jie)(jie)所需(xu)(xu)要(yao)的(de)(de)(de)(de)壓(ya)(ya)力(li)，靠節(jie)(jie)流閥(fa)(fa)(fa)來(lai)調節(jie)(jie)所需(xu)(xu)要(yao)的(de)(de)(de)(de)流量(liang)。這種傳統(tong)的(de)(de)(de)(de)氣(qi)動(dong)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)系(xi)統(tong)要(yao)想要(yao)有多(duo)個輸(shu)(shu)出(chu)(chu)力(li)和多(duo)個運動(dong)速度，就需(xu)(xu)要(yao)多(duo)個減壓(ya)(ya)閥(fa)(fa)(fa)、節(jie)(jie)流閥(fa)(fa)(fa)及換(huan)向(xiang)閥(fa)(fa)(fa)。這樣(yang)，不(bu)僅(jin)元(yuan)件需(xu)(xu)要(yao)多(duo)，成本高，構成系(xi)統(tong)復雜，且許(xu)多(duo)元(yuan)件都需(xu)(xu)要(yao)預先進行人工調節(jie)(jie)。電氣(qi)比例(li)閥(fa)(fa)(fa)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)屬于(yu)連續控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)，其特點是輸(shu)(shu)出(chu)(chu)量(liang)隨輸(shu)(shu)入量(liang)的(de)(de)(de)(de)變(bian)化而變(bian)化，輸(shu)(shu)出(chu)(chu)量(liang)與輸(shu)(shu)入量(liang)之間存(cun)在一定(ding)的(de)(de)(de)(de)比例(li)關系(xi)。比例(li)控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)有開(kai)(kai)環控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)和閉環控(kong)(kong)(kong)(kong)制(zhi)(zhi)(zhi)(zhi)之分。 意大利ATOS比例閥型號表(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 |
