液(ye)(ye)(ye)(ye)(ye)控(kong)伺(si)(si)服(fu)閥(fa)(fa)(fa)主要(yao)是指(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)伺(si)(si)服(fu)閥(fa)(fa)(fa),它(ta)在接受電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)模(mo)擬信(xin)號后，相(xiang)應輸(shu)出(chu)(chu)調制(zhi)的(de)(de)(de)(de)(de)(de)(de)流(liu)(liu)(liu)量(liang)和壓(ya)力(li)(li)。它(ta)既是電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)轉(zhuan)換元(yuan)件，也是功(gong)率(lv)放大(da)元(yuan)件，它(ta)能夠將(jiang)(jiang)(jiang)小功(gong)率(lv)的(de)(de)(de)(de)(de)(de)(de)微弱電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)輸(shu)入信(xin)號轉(zhuan)換為大(da)功(gong)率(lv)的(de)(de)(de)(de)(de)(de)(de)液(ye)(ye)(ye)(ye)(ye)壓(ya)能（流(liu)(liu)(liu)量(liang)和壓(ya)力(li)(li)）輸(shu)出(chu)(chu)。在電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)伺(si)(si)服(fu)系(xi)統中，它(ta)將(jiang)(jiang)(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)(qi)部(bu)分與(yu)液(ye)(ye)(ye)(ye)(ye)壓(ya)部(bu)分連接起來(lai)，實現電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)信(xin)號的(de)(de)(de)(de)(de)(de)(de)轉(zhuan)換與(yu)液(ye)(ye)(ye)(ye)(ye)壓(ya)放大(da)。電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)伺(si)(si)服(fu)閥(fa)(fa)(fa)是電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)伺(si)(si)服(fu)系(xi)統控(kong)制(zhi)的(de)(de)(de)(de)(de)(de)(de)核心。液(ye)(ye)(ye)(ye)(ye)控(kong)伺(si)(si)服(fu)閥(fa)(fa)(fa)是在伺(si)(si)服(fu)系(xi)統中將(jiang)(jiang)(jiang)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)號輸(shu)入轉(zhuan)換為功(gong)率(lv)較大(da)的(de)(de)(de)(de)(de)(de)(de)壓(ya)力(li)(li)或流(liu)(liu)(liu)量(liang)壓(ya)力(li)(li)信(xin)號輸(shu)出(chu)(chu)的(de)(de)(de)(de)(de)(de)(de)執行元(yuan)件。它(ta)是一種電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)轉(zhuan)換和功(gong)率(lv)放大(da)元(yuan)件。伺(si)(si)服(fu)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)靈敏度高，快(kuai)速性(xing)好，能將(jiang)(jiang)(jiang)很小的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)信(xin)號（例如(ru)10毫安）轉(zhuan)換成(cheng)很大(da)的(de)(de)(de)(de)(de)(de)(de)液(ye)(ye)(ye)(ye)(ye)壓(ya)功(gong)率(lv)（如(ru)幾十匹馬(ma)(ma)力(li)(li)以(yi)上），可以(yi)驅動多種類型的(de)(de)(de)(de)(de)(de)(de)負(fu)載。過去人們曾把噴嘴(zui)(zui)檔(dang)板(ban)閥(fa)(fa)(fa)、射(she)流(liu)(liu)(liu)管或滑閥(fa)(fa)(fa)伺(si)(si)服(fu)馬(ma)(ma)達(da)等液(ye)(ye)(ye)(ye)(ye)壓(ya)放大(da)裝(zhuang)置都列(lie)入伺(si)(si)服(fu)閥(fa)(fa)(fa)范(fan)圍內。20世紀(ji)70年代以(yi)來(lai)，伺(si)(si)服(fu)閥(fa)(fa)(fa)一般僅指(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)液(ye)(ye)(ye)(ye)(ye)伺(si)(si)服(fu)閥(fa)(fa)(fa)。典型的(de)(de)(de)(de)(de)(de)(de)伺(si)(si)服(fu)閥(fa)(fa)(fa)由永磁力(li)(li)矩(ju)馬(ma)(ma)達(da)、噴嘴(zui)(zui)、檔(dang)板(ban)、閥(fa)(fa)(fa)芯(xin)(xin)、閥(fa)(fa)(fa)套(tao)和控(kong)制(zhi)腔組(zu)成(cheng)(見圖)。當輸(shu)入線(xian)圈通入電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)時(shi)(shi)，檔(dang)板(ban)向(xiang)右移動，使(shi)右邊(bian)噴嘴(zui)(zui)的(de)(de)(de)(de)(de)(de)(de)節流(liu)(liu)(liu)作(zuo)用加(jia)強，流(liu)(liu)(liu)量(liang)減少，右側背壓(ya)上升；同(tong)時(shi)(shi)使(shi)左邊(bian)噴嘴(zui)(zui)節流(liu)(liu)(liu)作(zuo)用減小，流(liu)(liu)(liu)量(liang)增加(jia)，左側背壓(ya)下降。閥(fa)(fa)(fa)芯(xin)(xin)兩端的(de)(de)(de)(de)(de)(de)(de)作(zuo)用力(li)(li)失去平衡, 閥(fa)(fa)(fa)芯(xin)(xin)遂向(xiang)左移動。高壓(ya)油(you)從S流(liu)(liu)(liu)向(xiang)C2，送(song)到負(fu)載。負(fu)載回油(you)通過 C1流(liu)(liu)(liu)過回油(you)口，進入油(you)箱(xiang)。閥(fa)(fa)(fa)芯(xin)(xin)的(de)(de)(de)(de)(de)(de)(de)位(wei)移量(liang)與(yu)力(li)(li)矩(ju)馬(ma)(ma)達(da)的(de)(de)(de)(de)(de)(de)(de)輸(shu)入電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)成(cheng)正(zheng)比，作(zuo)用在閥(fa)(fa)(fa)芯(xin)(xin)上的(de)(de)(de)(de)(de)(de)(de)液(ye)(ye)(ye)(ye)(ye)壓(ya)力(li)(li)與(yu)彈簧(huang)力(li)(li)相(xiang)平衡，因此在平衡狀態下力(li)(li)矩(ju)馬(ma)(ma)達(da)的(de)(de)(de)(de)(de)(de)(de)差動電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)與(yu)閥(fa)(fa)(fa)芯(xin)(xin)的(de)(de)(de)(de)(de)(de)(de)位(wei)移成(cheng)正(zheng)比。如(ru)果輸(shu)入的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)反向(xiang)，則流(liu)(liu)(liu)量(liang)也反向(xiang)。表中是伺(si)(si)服(fu)閥(fa)(fa)(fa)的(de)(de)(de)(de)(de)(de)(de)分類。

電(dian)(dian)磁繼(ji)(ji)(ji)電(dian)(dian)器(qi)一(yi)(yi)(yi)般由(you)鐵(tie)(tie)芯、線(xian)(xian)(xian)(xian)圈(quan)、銜(xian)鐵(tie)(tie)、觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)簧(huang)等(deng)組成(cheng)的(de)(de)(de)(de)(de)(de)(de)(de)。只要在(zai)線(xian)(xian)(xian)(xian)圈(quan)兩(liang)端加上(shang)一(yi)(yi)(yi)定的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)壓，線(xian)(xian)(xian)(xian)圈(quan)中(zhong)(zhong)就(jiu)(jiu)會(hui)(hui)流過一(yi)(yi)(yi)定的(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)流，從而(er)(er)(er)(er)產(chan)生(sheng)電(dian)(dian)磁效(xiao)應，銜(xian)鐵(tie)(tie)就(jiu)(jiu)會(hui)(hui)在(zai)電(dian)(dian)磁力吸引(yin)的(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)下(xia)(xia)克服(fu)返(fan)回彈(dan)簧(huang)的(de)(de)(de)(de)(de)(de)(de)(de)拉(la)力吸向(xiang)鐵(tie)(tie)芯，從而(er)(er)(er)(er)帶動(dong)銜(xian)鐵(tie)(tie)的(de)(de)(de)(de)(de)(de)(de)(de)動(dong)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)與靜觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)（常(chang)(chang)(chang)開(kai)(kai)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)）吸合。當線(xian)(xian)(xian)(xian)圈(quan)斷電(dian)(dian)后，電(dian)(dian)磁的(de)(de)(de)(de)(de)(de)(de)(de)吸力也隨(sui)之消失，銜(xian)鐵(tie)(tie)就(jiu)(jiu)會(hui)(hui)在(zai)彈(dan)簧(huang)的(de)(de)(de)(de)(de)(de)(de)(de)反作(zuo)(zuo)用(yong)(yong)力返(fan)回原來(lai)的(de)(de)(de)(de)(de)(de)(de)(de)位置，使動(dong)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)與原來(lai)的(de)(de)(de)(de)(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)（常(chang)(chang)(chang)閉(bi)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)）釋放。這樣吸合、釋放，從而(er)(er)(er)(er)達到(dao)(dao)了在(zai)電(dian)(dian)路中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)導通(tong)、切斷的(de)(de)(de)(de)(de)(de)(de)(de)目的(de)(de)(de)(de)(de)(de)(de)(de)。對(dui)于(yu)繼(ji)(ji)(ji)電(dian)(dian)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)“常(chang)(chang)(chang)開(kai)(kai)、常(chang)(chang)(chang)閉(bi)”觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)，可(ke)以這樣來(lai)區分：繼(ji)(ji)(ji)電(dian)(dian)器(qi)線(xian)(xian)(xian)(xian)圈(quan)未通(tong)電(dian)(dian)時(shi)(shi)(shi)(shi)處于(yu)斷開(kai)(kai)狀態的(de)(de)(de)(de)(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)，稱為(wei)“常(chang)(chang)(chang)開(kai)(kai)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)”；處于(yu)接(jie)(jie)通(tong)狀態的(de)(de)(de)(de)(de)(de)(de)(de)靜觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)稱為(wei)“常(chang)(chang)(chang)閉(bi)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)”。繼(ji)(ji)(ji)電(dian)(dian)器(qi)一(yi)(yi)(yi)般有兩(liang)股電(dian)(dian)路，為(wei)低(di)壓控(kong)制電(dian)(dian)路和(he)高壓工作(zuo)(zuo)電(dian)(dian)路。當線(xian)(xian)(xian)(xian)圈(quan)通(tong)電(dian)(dian)（電(dian)(dian)壓規格有ac380v、ac220v或(huo)dc220v、dc24v等(deng)）時(shi)(shi)(shi)(shi)，銜(xian)鐵(tie)(tie)及(ji)托板被(bei)鐵(tie)(tie)心吸引(yin)而(er)(er)(er)(er)瞬(shun)時(shi)(shi)(shi)(shi)下(xia)(xia)移，使瞬(shun)時(shi)(shi)(shi)(shi)動(dong)作(zuo)(zuo)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)接(jie)(jie)通(tong)或(huo)斷開(kai)(kai)。但是(shi)活(huo)(huo)(huo)(huo)塞(sai)(sai)(sai)桿(gan)(gan)(gan)和(he)杠(gang)桿(gan)(gan)(gan)不能同時(shi)(shi)(shi)(shi)跟著銜(xian)鐵(tie)(tie)一(yi)(yi)(yi)起下(xia)(xia)落，因為(wei)活(huo)(huo)(huo)(huo)塞(sai)(sai)(sai)桿(gan)(gan)(gan)的(de)(de)(de)(de)(de)(de)(de)(de)上(shang)端連著氣(qi)室(shi)中(zhong)(zhong)的(de)(de)(de)(de)(de)(de)(de)(de)橡(xiang)皮(pi)膜(mo)，當活(huo)(huo)(huo)(huo)塞(sai)(sai)(sai)桿(gan)(gan)(gan)在(zai)釋放彈(dan)簧(huang)的(de)(de)(de)(de)(de)(de)(de)(de)作(zuo)(zuo)用(yong)(yong)下(xia)(xia)開(kai)(kai)始向(xiang)下(xia)(xia)運動(dong)時(shi)(shi)(shi)(shi)，橡(xiang)皮(pi)膜(mo)隨(sui)之向(xiang)下(xia)(xia)凹，上(shang)面(mian)空氣(qi)室(shi)的(de)(de)(de)(de)(de)(de)(de)(de)空氣(qi)變得稀薄而(er)(er)(er)(er)使活(huo)(huo)(huo)(huo)塞(sai)(sai)(sai)桿(gan)(gan)(gan)受到(dao)(dao)阻尼作(zuo)(zuo)用(yong)(yong)而(er)(er)(er)(er)緩慢下(xia)(xia)降。經過一(yi)(yi)(yi)定時(shi)(shi)(shi)(shi)間，活(huo)(huo)(huo)(huo)塞(sai)(sai)(sai)桿(gan)(gan)(gan)下(xia)(xia)降到(dao)(dao)一(yi)(yi)(yi)定位置，便通(tong)過杠(gang)桿(gan)(gan)(gan)推(tui)動(dong)延(yan)時(shi)(shi)(shi)(shi)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)動(dong)作(zuo)(zuo)，使動(dong)斷觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)斷開(kai)(kai)，動(dong)合觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)閉(bi)合。從線(xian)(xian)(xian)(xian)圈(quan)通(tong)電(dian)(dian)到(dao)(dao)延(yan)時(shi)(shi)(shi)(shi)觸(chu)(chu)(chu)(chu)(chu)(chu)(chu)點(dian)(dian)(dian)完(wan)成(cheng)動(dong)作(zuo)(zuo)，這段(duan)時(shi)(shi)(shi)(shi)間就(jiu)(jiu)是(shi)繼(ji)(ji)(ji)電(dian)(dian)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)延(yan)時(shi)(shi)(shi)(shi)時(shi)(shi)(shi)(shi)間。延(yan)時(shi)(shi)(shi)(shi)時(shi)(shi)(shi)(shi)間的(de)(de)(de)(de)(de)(de)(de)(de)長(chang)短可(ke)以用(yong)(yong)螺釘調節空氣(qi)室(shi)進(jin)氣(qi)孔(kong)的(de)(de)(de)(de)(de)(de)(de)(de)大(da)小來(lai)改變。

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SCHUN機械配件AGE-XY-080-P0324481翊霈優供

SCHUN機械配件AGE-XY-080-P0324481翊霈優供