一、液壓馬達和電機的區別在哪里

液壓(ya)馬達(da)和(he)電動機最主要的(de)(de)區別在于動力來源(yuan)不一樣，液壓(ya)馬達(da)的(de)(de)能(neng)量來源(yuan)是(shi)液壓(ya)油的(de)(de)壓(ya)力勢能(neng)，電動機的(de)(de)能(neng)量來源(yuan)是(shi)電勢能(neng)。

1、液壓馬達：

液(ye)壓馬達是(shi)液(ye)壓系統的一種執行(xing)元件，它將液(ye)壓泵提供的液(ye)體壓力能轉(zhuan)變(bian)為其輸(shu)出軸的機械能（轉(zhuan)矩和轉(zhuan)速(su)）。

液(ye)壓馬達亦稱為油(you)馬達，主(zhu)要應用于注塑機(ji)械(xie)(xie)、船舶(bo)、起揚機(ji)、工程機(ji)械(xie)(xie)、建筑機(ji)械(xie)(xie)、煤礦機(ji)械(xie)(xie)、礦山機(ji)械(xie)(xie)、冶金機(ji)械(xie)(xie)、船舶(bo)機(ji)械(xie)(xie)、石(shi)油(you)化工、港(gang)口機(ji)械(xie)(xie)等。具有(you)體積小(xiao)、重量輕(qing)、結構(gou)簡(jian)單、工藝(yi)性好、對油(you)液(ye)的(de)污染不敏(min)感、耐沖擊(ji)和(he)慣性小(xiao)等優點。缺點有(you)扭(niu)矩(ju)(ju)脈(mo)動較(jiao)大、效率較(jiao)低(di)、起動扭(niu)矩(ju)(ju)較(jiao)小(xiao)（僅為額定(ding)扭(niu)矩(ju)(ju)的(de)60%——70%）和(he)低(di)速穩定(ding)性差等。

2、電動機：

電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)（Motor）是(shi)把電(dian)(dian)(dian)(dian)能(neng)轉(zhuan)換成機(ji)(ji)械能(neng)的(de)一(yi)種設備。它是(shi)利(li)用(yong)(yong)通(tong)電(dian)(dian)(dian)(dian)線圈（也就(jiu)是(shi)定子(zi)繞組）產(chan)生旋(xuan)轉(zhuan)磁(ci)(ci)場并作用(yong)(yong)于轉(zhuan)子(zi)（如鼠籠式閉合鋁框）形成磁(ci)(ci)電(dian)(dian)(dian)(dian)動(dong)(dong)力(li)旋(xuan)轉(zhuan)扭(niu)矩。電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)按(an)使(shi)用(yong)(yong)電(dian)(dian)(dian)(dian)源不同分為直(zhi)流(liu)(liu)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)和交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)，電(dian)(dian)(dian)(dian)力(li)系統中的(de)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)大部分是(shi)交(jiao)流(liu)(liu)電(dian)(dian)(dian)(dian)機(ji)(ji)，可(ke)以是(shi)同步電(dian)(dian)(dian)(dian)機(ji)(ji)或者(zhe)是(shi)異步電(dian)(dian)(dian)(dian)機(ji)(ji)（電(dian)(dian)(dian)(dian)機(ji)(ji)定子(zi)磁(ci)(ci)場轉(zhuan)速(su)與轉(zhuan)子(zi)旋(xuan)轉(zhuan)轉(zhuan)速(su)不保持同步速(su)）。電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)主要由定子(zi)與轉(zhuan)子(zi)組成，通(tong)電(dian)(dian)(dian)(dian)導線在磁(ci)(ci)場中受力(li)運動(dong)(dong)的(de)方向(xiang)跟電(dian)(dian)(dian)(dian)流(liu)(liu)方向(xiang)和磁(ci)(ci)感線（磁(ci)(ci)場方向(xiang)）方向(xiang)有(you)關(guan)。電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)工(gong)作原理(li)是(shi)磁(ci)(ci)場對電(dian)(dian)(dian)(dian)流(liu)(liu)受力(li)的(de)作用(yong)(yong)，使(shi)電(dian)(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)轉(zhuan)動(dong)(dong)。

二、液壓馬達可以代替電機使用嗎

液壓馬達能(neng)否代替(ti)電(dian)機(ji)要(yao)(yao)根(gen)據(ju)(ju)實際(ji)的情(qing)況而(er)定，液壓馬達的動(dong)(dong)(dong)力來源也是要(yao)(yao)靠電(dian)機(ji)或者(zhe)發動(dong)(dong)(dong)機(ji)來提供動(dong)(dong)(dong)力來源，通(tong)過液壓系(xi)統泵閥轉換(huan)后才能(neng)驅動(dong)(dong)(dong)液壓馬達提供動(dong)(dong)(dong)力源。至于是使(shi)用液壓馬達還是電(dian)機(ji)這要(yao)(yao)根(gen)據(ju)(ju)實際(ji)的情(qing)況，如果需要(yao)(yao)的扭矩(ju)大就要(yao)(yao)通(tong)過液壓馬達帶動(dong)(dong)(dong)，如果扭矩(ju)一般(ban)就可以通(tong)過電(dian)機(ji)來驅動(dong)(dong)(dong)。