使用(yong)(yong)電(dian)(dian)(dian)(dian)磁作用(yong)(yong)道(dao)理(li),直流(liu)電(dian)(dian)(dian)(dian)機是使用(yong)(yong)電(dian)(dian)(dian)(dian)磁作用(yong)(yong)道(dao)理(li)進行(xing)能量變換的電(dian)(dian)(dian)(dian)機裝置,直流(liu)電(dian)(dian)(dian)(dian)機具有可逆性。它既可以作為(wei)發(fa)電(dian)(dian)(dian)(dian)機工作,又可作為(wei)電(dian)(dian)(dian)(dian)想法(fa)(fa)工作。這(zhe)徹底取(qu)決與外界(jie)不(bu)合的條(tiao)件,假如用(yong)(yong)原想法(fa)(fa)拖(tuo)動(dong)直流(liu)電(dian)(dian)(dian)(dian)機的點數改變,就能從電(dian)(dian)(dian)(dian)刷上(shang)引出直流(liu)電(dian)(dian)(dian)(dian)動(dong)勢,則直流(liu)電(dian)(dian)(dian)(dian)機做(zuo)直流(liu)發(fa)電(dian)(dian)(dian)(dian)機工作。
一致臺直(zhi)流(liu)電(dian)(dian)機(ji)(ji)當將(jiang)直(zhi)流(liu)電(dian)(dian)輸入電(dian)(dian)機(ji)(ji)時,電(dian)(dian)機(ji)(ji)將(jiang)電(dian)(dian)能變換(huan)為機(ji)(ji)械(xie)(xie)(xie)能,拖動出產(chan)機(ji)(ji)械(xie)(xie)(xie)改變,做電(dian)(dian)想(xiang)法工作。由于(yu)描(miao)繪電(dian)(dian)想(xiang)法和描(miao)繪發電(dian)(dian)機(ji)(ji)的偏要(yao)點也不(bu)合,所以(yi)可逆工作時,在(zai)功能上會有差(cha)異。換(huan)向器表面(mian)(mian)應保持光潔,不(bu)得(de)有機(ji)(ji)械(xie)(xie)(xie)損傷和火花灼痕。如(ru)有輕微(wei)灼痕時,可用(yong)0號砂(sha)紙在(zai)低速(su)旋轉(zhuan)的換(huan)向器表面(mian)(mian)仔(zi)細研磨。
重(zhong)慶直流(liu)(liu)電(dian)機維修(xiu)解(jie)讀廠(chang)家使(shi)用電(dian)磁作用道(dao)理,如直流(liu)(liu)電(dian)機中(zhong)換向器表(biao)面出現嚴重(zhong)的(de)灼痕或粗糙不平、表(biao)面不圓或有局部凸凹(ao)等現象時,則應拆(chai)下(xia)重(zhong)新進行車削(xue)加(jia)工。車削(xue)完(wan)畢后,應將片間云母槽中(zhong)的(de)云母片下(xia)刻lmm左右,并清除換向器表(biao)面的(de)金屬屑及毛刺(ci)等,較后用壓縮空氣(qi)將整個電(dian)樞表(biao)面吹掃(sao)干(gan)凈,再進行裝配(pei)。
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