防爆電機配件產品換向器由電刷和換向環組成,碳刷就是電刷的一種.由于轉子的轉動,電刷始終與換向環進行摩擦,且在換向的瞬間還會產生電火花灼蝕,所以電刷是直流電機里的易損件. 為了提高直流電機的使用壽命、運轉穩定性以及降低直流電機的噪聲和電磁干擾,無刷直流電機有逐步取代有刷電機的趨勢. 異形軸廠家(jia)一般交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)機(ji)不(bu)用恒磁場,所(suo)以(yi)用不(bu)著換向器,也就無須電(dian)(dian)(dian)(dian)(dian)刷；但交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)機(ji)的體積一般都(dou)比較大.家(jia)用電(dian)(dian)(dian)(dian)(dian)器使(shi)(shi)用的電(dian)(dian)(dian)(dian)(dian)機(ji)一般都(dou)是交流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)機(ji),如電(dian)(dian)(dian)(dian)(dian)扇(shan)、洗(xi)衣機(ji)、冰箱(xiang)、空調等都(dou)沒有(you)碳刷,但也有(you)使(shi)(shi)用直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)機(ji)的,如許(xu)多的電(dian)(dian)(dian)(dian)(dian)動剃須刀、廚房(fang)小電(dian)(dian)(dian)(dian)(dian)器、電(dian)(dian)(dian)(dian)(dian)動自(zi)行車等都(dou)有(you)碳刷,就是直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)動機(ji)都(dou)有(you).使(shi)(shi)用干電(dian)(dian)(dian)(dian)(dian)池的電(dian)(dian)(dian)(dian)(dian)機(ji)都(dou)是直流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)機(ji).
常州電機軸配件產品按(an)電(dian)(dian)機(ji)碳刷(shua)的(de)使用(yong)對象可(ke)分(fen)為：汽輪發(fa)電(dian)(dian)機(ji)用(yong)電(dian)(dian)刷(shua),軋(ya)鋼電(dian)(dian)機(ji)有用(yong)電(dian)(dian)刷(shua),牽引電(dian)(dian)機(ji)用(yong)電(dian)(dian)刷(shua),交流電(dian)(dian)機(ji)用(yong)電(dian)(dian)刷(shua),飛機(ji)電(dian)(dian)機(ji)用(yong)電(dian)(dian)刷(shua).
直流(liu)集(ji)電(dian)環機通(tong)常與同步(bu)發電(dian)機同軸(zhou),采用并勵(li)或者他勵(li)接(jie)法.異形(xing)軸(zhou)廠家采用他勵(li)接(jie)法時,集(ji)電(dian)不機的(de)(de)勵(li)磁電(dian)流(liu)由另一臺被稱為副集(ji)電(dian)環機的(de)(de)同軸(zhou)的(de)(de)直流(liu)發電(dian)機供給(gei).
旋轉(zhuan)(zhuan)整(zheng)流(liu)(liu)器(qi)(qi)勵(li)(li)(li)磁靜止整(zheng)流(liu)(liu)器(qi)(qi)的(de)直流(liu)(liu)輸出必(bi)須經(jing)過電刷和(he)集(ji)電環才能輸送(song)(song)到旋轉(zhuan)(zhuan)的(de)勵(li)(li)(li)磁繞組,對于(yu)大(da)容量的(de)同(tong)步(bu)發(fa)電機(ji),其勵(li)(li)(li)磁電流(liu)(liu)達到數千安培,使得集(ji)電環嚴重過熱(re).因此,在(zai)大(da)容量的(de)同(tong)步(bu)發(fa)電機(ji)中(zhong),常(chang)采(cai)用(yong)不需(xu)要(yao)電刷和(he)集(ji)電環的(de)旋轉(zhuan)(zhuan)整(zheng)流(liu)(liu)器(qi)(qi)勵(li)(li)(li)磁系(xi)統,主(zhu)勵(li)(li)(li)磁機(ji)是旋轉(zhuan)(zhuan)電樞式三(san)相同(tong)步(bu)發(fa)電機(ji),旋轉(zhuan)(zhuan)電樞的(de)交流(liu)(liu)電流(liu)(liu)經(jing)與主(zhu)軸一起旋轉(zhuan)(zhuan)的(de)硅整(zheng)流(liu)(liu)器(qi)(qi)整(zheng)流(liu)(liu)后,直接送(song)(song)到主(zhu)發(fa)電機(ji)的(de)轉(zhuan)(zhuan)子勵(li)(li)(li)磁繞組.
