一、半自動電動起子
在達到(dao)設定(ding)扭力后不(bu)會自(zi)(zi)動(dong)剎車停止的起子(zi),稱(cheng)之(zhi)為半自(zi)(zi)動(dong)電動(dong)起子(zi)。通(tong)常半自(zi)(zi)動(dong)設計為手按式(shi)。半自(zi)(zi)動(dong)有分(fen)AC高壓(ya)直插式(shi),與經過電源(yuan)變壓(ya)為DC低壓(ya)式(shi)。
二(er)、全(quan)自動電(dian)動起(qi)子
在達到設定扭力后能夠完全(quan)自動(dong)(dong)剎車并停(ting)止運(yun)轉的電動(dong)(dong)起(qi)子(zi)稱為(wei)全(quan)自動(dong)(dong)電動(dong)(dong)起(qi)子(zi)。全(quan)自動(dong)(dong)電動(dong)(dong)起(qi)子(zi)又分(fen)為(wei)AC高壓和DC低壓兩個(ge)系列(lie),根(gen)據(ju)操(cao)作啟(qi)動(dong)(dong)模式(shi)(shi)的不(bu)同又分(fen)為(wei)手按式(shi)(shi)和下(xia)壓式(shi)(shi)兩種。
高壓(ya)系列(lie)電(dian)動(dong)(dong)(dong)(dong)起(qi)子(zi)(zi)不需(xu)要(yao)單獨電(dian)源供應器轉(zhuan)換(huan)電(dian)壓(ya),直(zhi)接與市電(dian)連接,操作快捷占用空間(jian)小(xiao)。低壓(ya)系列(lie)電(dian)動(dong)(dong)(dong)(dong)起(qi)子(zi)(zi)體積小(xiao)重(zhong)量輕,由直(zhi)流馬達(da)驅動(dong)(dong)(dong)(dong),壽命長安全系數(shu)高。手按(an)式電(dian)動(dong)(dong)(dong)(dong)起(qi)子(zi)(zi)操作啟(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)時(shi)只需(xu)用手指(zhi)按(an)住啟(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)杠桿(gan),或壓(ya)板按(an)鈕等。下(xia)壓(ya)式電(dian)動(dong)(dong)(dong)(dong)起(qi)子(zi)(zi)操作啟(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)時(shi)無(wu)需(xu)用手指(zhi)按(an)住啟(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)杠桿(gan),或壓(ya)板按(an)鈕等,直(zhi)接對準工(gong)件壓(ya)下(xia)就可啟(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)。