[導讀:]直(zhi)(zhi)(zhi)流(liu)(liu)(liu)伺服(fu)電(dian)(dian)(dian)機(ji)具備優良的(de)起(qi)動(dong)、制(zhi)動(dong)和變(bian)(bian)速(su)特點，能(neng)夠(gou)很便捷(jie)的(de)在寬范圍之內保持平(ping)穩(wen)無(wu)極(ji)調(diao)(diao)(diao)速(su)，故(gu)多選用在對伺服(fu)電(dian)(dian)(dian)機(ji)的(de)調(diao)(diao)(diao)速(su)性(xing)能(neng)規定(ding)較高的(de)生產(chan)(chan)設備中。它主要(yao)是用以各種數字控制(zhi)系(xi)統(tong)中的(de)執行機(ji)構驅動(dong)，必須精(jing)準(zhun)控制(zhi)勻(yun)速(su)轉速(su)或精(jing)準(zhun)控制(zhi)轉速(su)變(bian)(bian)化曲線的(de)動(dong)力驅動(dong)。下面小(xiao)編帶大(da)家一起(qi)來了解下直(zhi)(zhi)(zhi)流(liu)(liu)(liu)伺服(fu)電(dian)(dian)(dian)機(ji)的(de)的(de)結(jie)構及分(fen)類。1、電(dian)(dian)(dian)機(ji)定(ding)子(zi)(zi)，電(dian)(dian)(dian)機(ji)定(ding)子(zi)(zi)磁(ci)(ci)極(ji)電(dian)(dian)(dian)磁(ci)(ci)場由電(dian)(dian)(dian)機(ji)定(ding)子(zi)(zi)的(de)磁(ci)(ci)極(ji)產(chan)(chan)生。依據(ju)產(chan)(chan)生磁(ci)(ci)場的(de)方法，直(zhi)(zhi)(zhi)流(liu)(liu)(liu)伺服(fu)電(dian)(dian)(dian)機(ji)調(diao)(diao)(diao)速(su)電(dian)(dian)(dian)機(ji)可分(fen)成(cheng)永(yong)(yong)磁(ci)(ci)式(shi)和他激(ji)式(shi)。永(yong)(yong)磁(ci)(ci)式(shi)磁(ci)(ci)極(ji)由永(yong)(yong)磁(ci)(ci)材料做成(cheng)，他激(ji)式(shi)磁(ci)(ci)極(ji)由沖壓硅(gui)鋼片疊壓而成(cheng)，外(wai)繞線圈通以直(zhi)(zhi)(zhi)流(liu)(liu)(liu)電(dian)(dian)(dian)流(liu)(liu)(liu)便產(chan)(chan)生恒(heng)定(ding)磁(ci)(ci)場..