調速(su)電(dian)機是(shi)利用改變(bian)電(dian)機的級數(shu),電(dian)壓,電(dian)流,頻率等方法改變(bian)電(dian)機的轉速(su),以使電(dian)機達(da)到較高的使用性能的一種電(dian)機.
下(xia)面請重慶(qing)直流電(dian)機(ji)維修給(gei)大家介紹一下(xia)調(diao)速電(dian)機(ji)的調(diao)速方法具有較(jiao)硬(ying)的機(ji)械特性,穩定性良好無(wu)轉差(cha)損耗,效率(lv)高(gao)接線簡單(dan),控制方便,價格低有級調(diao)速,級差(cha)較(jiao)大,不能獲(huo)得平滑調(diao)速可以與調(diao)壓調(diao)速,電(dian)磁轉差(cha)離合器配合使(shi)用(yong),獲(huo)得較(jiao)高(gao)效率(lv)的平滑調(diao)速特性
給大(da)家介紹一(yi)下電機軸(zhou)(zhou)承(cheng)(cheng)(cheng)的選(xuan)(xuan)(xuan)擇(ze)軸(zhou)(zhou)承(cheng)(cheng)(cheng)型(xing)號的選(xuan)(xuan)(xuan)擇(ze):軸(zhou)(zhou)承(cheng)(cheng)(cheng)型(xing)號一(yi)般(ban)(ban)是(shi)(shi)由用(yong)(yong)戶的技術人員根(gen)據配套(tao)產(chan)品的使用(yong)(yong)條(tiao)件(jian)及(ji)承(cheng)(cheng)(cheng)受(shou)負荷對軸(zhou)(zhou)承(cheng)(cheng)(cheng)進行選(xuan)(xuan)(xuan)擇(ze)軸(zhou)(zhou)承(cheng)(cheng)(cheng)游(you)隙的選(xuan)(xuan)(xuan)擇(ze):用(yong)(yong)戶在(zai)購買軸(zhou)(zhou)承(cheng)(cheng)(cheng)時一(yi)般(ban)(ban)只會(hui)告知在(zai)什么型(xing)號,很少會(hui)對軸(zhou)(zhou)承(cheng)(cheng)(cheng)的游(you)隙提出要(yao)求,業(ye)務人員必須問(wen)清軸(zhou)(zhou)承(cheng)(cheng)(cheng)的使用(yong)(yong)條(tiao)件(jian)油(you)(you)脂的選(xuan)(xuan)(xuan)擇(ze):油(you)(you)脂的選(xuan)(xuan)(xuan)擇(ze)一(yi)般(ban)(ban)是(shi)(shi)根(gen)據軸(zhou)(zhou)承(cheng)(cheng)(cheng)的轉速,耐溫情況(kuang),噪音(yin)要(yao)求及(ji)起動力矩等方面進行選(xuan)(xuan)(xuan)擇(ze),要(yao)求業(ye)務人員對各種油(you)(you)脂的性能很了解(jie)軸(zhou)(zhou)承(cheng)(cheng)(cheng)密(mi)封(feng)型(xing)式的選(xuan)(xuan)(xuan)擇(ze):軸(zhou)(zhou)承(cheng)(cheng)(cheng)的潤(run)滑可(ke)分為(wei)油(you)(you)潤(run)滑和脂潤(run)滑.油(you)(you)潤(run)滑軸(zhou)(zhou)承(cheng)(cheng)(cheng)一(yi)般(ban)(ban)是(shi)(shi)選(xuan)(xuan)(xuan)用(yong)(yong)形式軸(zhou)(zhou)承(cheng)(cheng)(cheng),脂潤(run)滑軸(zhou)(zhou)承(cheng)(cheng)(cheng)一(yi)般(ban)(ban)選(xuan)(xuan)(xuan)用(yong)(yong)防塵蓋(gai)或橡膠密(mi)封(feng)件(jian)密(mi)封(feng)說到直流(liu)電機,相(xiang)信大(da)家一定都不(bu)會陌生(sheng),電動機在我們(men)日常生(sheng)活(huo)當中(zhong)是非常常見(jian)的,但(dan)是關于直流(liu)電機的知識大(da)家又(you)知道哪些呢?
直流電(dian)(dian)機(ji)就(jiu)(jiu)是將(jiang)電(dian)(dian)能(neng)轉(zhuan)換為機(ji)械能(neng)的(de)(de)設備,下面(mian)向大家介紹(shao)直流電(dian)(dian)機(ji)的(de)(de)選(xuan)(xuan)(xuan)購要點功率(lv)的(de)(de)選(xuan)(xuan)(xuan)擇(ze)(ze)(ze):電(dian)(dian)機(ji)輸出的(de)(de)較(jiao)大功率(lv)是有限度的(de)(de),如(ru)果(guo)電(dian)(dian)機(ji)的(de)(de)功率(lv)選(xuan)(xuan)(xuan)擇(ze)(ze)(ze)過小,負(fu)載(zai)超過了(le)電(dian)(dian)機(ji)的(de)(de)額(e)(e)定(ding)輸出功率(lv)就(jiu)(jiu)會(hui)(hui)發生電(dian)(dian)動(dong)機(ji)過載(zai),過載(zai)時(shi)會(hui)(hui)出現電(dian)(dian)動(dong)機(ji)發熱.振(zhen)動(dong).轉(zhuan)速(su)下降(jiang).聲(sheng)音異(yi)常(chang)等現象,嚴重過載(zai)時(shi),將(jiang)會(hui)(hui)燒毀電(dian)(dian)機(ji)類(lei)型的(de)(de)選(xuan)(xuan)(xuan)擇(ze)(ze)(ze):宜(yi)優先選(xuan)(xuan)(xuan)用效率(lv)高.價格(ge)(ge)便(bian)宜(yi).溫升低的(de)(de)鐵氧(yang)體(ti)永磁直流電(dian)(dian)機(ji)規(gui)格(ge)(ge)選(xuan)(xuan)(xuan)擇(ze)(ze)(ze):可(ke)按(an)(an)實際需要選(xuan)(xuan)(xuan)擇(ze)(ze)(ze)轉(zhuan)矩.轉(zhuan)速(su)與(yu)產品相應(ying)的(de)(de)額(e)(e)定(ding)值(zhi)接近的(de)(de)規(gui)格(ge)(ge),通過改變電(dian)(dian)壓(ya)得到所需轉(zhuan)速(su);在電(dian)(dian)源(yuan)電(dian)(dian)壓(ya)固(gu)定(ding)的(de)(de)場合,如(ru)果(guo)沒有適當(dang)(dang)規(gui)格(ge)(ge)的(de)(de)產品可(ke)供選(xuan)(xuan)(xuan)用時(shi),可(ke)先按(an)(an)轉(zhuan)矩選(xuan)(xuan)(xuan)擇(ze)(ze)(ze)適當(dang)(dang)規(gui)格(ge)(ge),而產品的(de)(de)電(dian)(dian)壓(ya)與(yu)轉(zhuan)速(su)之間(jian)可(ke)作適當(dang)(dang)調(diao)整(zheng)。
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