起重機繞線型電動機功能分析

 

　　采(cai)用(yong)原(yuan)電(dian)動(dong)機(ji)，隻(zhi)需(xu)在(zai)電(dian)網(wang)電(dian)源(yuan)和(he)現(xian)有(you)的(de)電(dian)動(dong)機(ji)之(zhi)間(jian)接(jie)入(ru)變(bian)頻(pin)器(qi)和(he)相(xiang)應(ying)設(she)備(bei)
，就(jiu)可(ke)以(yi)利(li)用(yong)變(bian)頻(pin)器(qi)實(shi)現(xian)調(tiao)速(su)控(kong)製(zhi)，而(er)無(wu)須(xu)對(dui)電(dian)動(dong)機(ji)和(he)係(xi)統(tong)本(ben)身(shen)進(jin)行(xing)大(da)的(de)設(she)備(bei)改(gai)造(zao)。起(qi)重(zhong)機(ji)原(yuan)有(you)的(de)電(dian)動(dong)機(ji)為(wei)普(pu)通(tong)繞(rao)線(xian)型(xing)電(dian)動(dong)機(ji)
，短(duan)接(jie)轉(zhuan)子(zi)回(hui)路(lu)可(ke)用(yong)於(yu)變(bian)頻(pin)器(qi)運(yun)行(xing)
，可(ke)滿(man)足(zu)變(bian)頻(pin)器(qi)的(de)速(su)度(du)、加速度
、起動、過載能力等要求
，能適應電網和使用環境的要求。電動機運行方向、速(su)度(du)無(wu)觸(chu)點(dian)控(kong)製(zhi)
，提(ti)高(gao)了(le)電(dian)氣(qi)係(xi)統(tong)的(de)可(ke)靠(kao)性(xing)。由(you)於(yu)在(zai)電(dian)機(ji)軸(zhou)上(shang)加(jia)裝(zhuang)脈(mai)衝(chong)編(bian)碼(ma)器(qi)，編(bian)碼(ma)器(qi)將(jiang)檢(jian)測(ce)到(dao)的(de)電(dian)機(ji)速(su)度(du)反(fan)饋(kui)回(hui)變(bian)頻(pin)器(qi)
，形(xing)成(cheng)閉(bi)環(huan)控(kong)製(zhi)係(xi)統(tong)
，使(shi)電(dian)動(dong)機(ji)具(ju)備(bei)自(zi)適(shi)應(ying)功(gong)能(neng)。軟(ruan)起(qi)動(dong)和(he)製(zhi)動(dong)，減(jian)小(xiao)了(le)機(ji)械(xie)衝(chong)擊(ji)
，延(yan)長(chang)傳(chuan)動(dong)機(ji)構(gou)壽(shou)命(ming)。自(zi)動(dong)監(jian)測(ce)的(de)低(di)速(su)抱(bao)閘(zha)
，減(jian)少(shao)了(le)製(zhi)動(dong)器(qi)磨(mo)損(sun)。製(zhi)動(dong)器(qi)製(zhi)動(dong)力(li)矩(ju)可(ke)調(tiao)至(zhi)額(e)定(ding)值(zhi)，保(bao)證(zheng)緊(jin)急(ji)停(ting)車(che)時(shi)的(de)安(an)全(quan)距(ju)離(li)。