根(gen)(gen)據磁(ci)選(xuan)機的(de)(de)(de)結構組成(cheng)部件(jian)可(ke)知，磁(ci)選(xuan)機主(zhu)要(yao)由圓筒(tong)(tong)(tong)、磁(ci)系、槽體(ti)、傳(chuan)動(dong)部分四部分組成(cheng)。圓筒(tong)(tong)(tong)由2-3mm不銹(xiu)鋼板卷焊成(cheng)筒(tong)(tong)(tong)，端蓋(gai)為(wei)鑄鋁件(jian)，用(yong)不銹(xiu)鋼螺釘(ding)和筒(tong)(tong)(tong)相(xiang)連。電(dian)(dian)機通過減速機，帶動(dong)圓筒(tong)(tong)(tong)作(zuo)回(hui)轉運(yun)動(dong)。磁(ci)選(xuan)機結構上圓筒(tong)(tong)(tong)和磁(ci)系是(shi)(shi)磁(ci)選(xuan)過程(cheng)選(xuan)別礦物的(de)(de)(de)重要(yao)部件(jian)，傳(chuan)動(dong)部分主(zhu)要(yao)的(de)(de)(de)是(shi)(shi)電(dian)(dian)機和減速機。電(dian)(dian)機在(zai)磁(ci)選(xuan)機的(de)(de)(de)作(zuo)用(yong)猶如汽(qi)車(che)的(de)(de)(de)引擎，是(shi)(shi)驅動(dong)磁(ci)選(xuan)機運(yun)行的(de)(de)(de)設備(bei)，所(suo)以在(zai)電(dian)(dian)機的(de)(de)(de)選(xuan)擇上也要(yao)根(gen)(gen)據實(shi)際情況，設備(bei)要(yao)求選(xuan)擇合適的(de)(de)(de)電(dian)(dian)機型(xing)號。

一、永磁筒式磁選機電機的選擇和維護保養

1、永磁筒式(shi)磁選(xuan)機(ji)(ji)電(dian)機(ji)(ji)的選(xuan)擇(ze)，根據設(she)備(bei)(bei)性能，我(wo)們選(xuan)擇(ze)的是Y系(xi)列(lie)三(san)相(xiang)(xiang)異(yi)步電(dian)動(dong)(dong)(dong)機(ji)(ji)。常(chang)用于礦山設(she)備(bei)(bei)的電(dian)機(ji)(ji)型(xing)號主要是Y系(xi)列(lie)三(san)相(xiang)(xiang)異(yi)步電(dian)動(dong)(dong)(dong)機(ji)(ji)、YCT系(xi)列(lie)電(dian)磁調速電(dian)動(dong)(dong)(dong)機(ji)(ji)、YD系(xi)列(lie)變級多速三(san)相(xiang)(xiang)異(yi)步電(dian)動(dong)(dong)(dong)機(ji)(ji)、YZS系(xi)列(lie)振動(dong)(dong)(dong)源三(san)相(xiang)(xiang)異(yi)步電(dian)動(dong)(dong)(dong)機(ji)(ji)、JR系(xi)列(lie)中型(xing)繞線轉子(zi)三(san)相(xiang)(xiang)異(yi)步電(dian)動(dong)(dong)(dong)機(ji)(ji)。

2、Y系(xi)列電動機是一般(ban)用途的全(quan)封閉自扇冷式(shi)三相異步電動機。安(an)裝(zhuang)尺(chi)寸和功(gong)率(lv)等(deng)級符合IEC標準(zhun)，外殼防護等(deng)級為(wei)IP44，冷卻方式(shi)為(wei)IC411,連續工作制。采用B級絕緣，額定電壓為(wei)：380V。額定頻(pin)率(lv)：50Hz。

3、功(gong)率(lv)3KW及(ji)以下為Y接法，其它功(gong)率(lv)為△接法。Y系(xi)列電(dian)動機高(gao)效、節能。起動轉矩高(gao)，噪音小(xiao)，振動小(xiao)，運行安全(quan)可靠。適用于驅(qu)動無(wu)特殊要(yao)求(qiu)的(de)機械(xie)設備。

二、永磁筒式磁選機(ji)所用Y 系列三相異步電(dian)動機(ji)技(ji)術參(can)(can)數(shu)（部分參(can)(can)數(shu)）：

1、永(yong)磁(ci)(ci)筒式(shi)磁(ci)(ci)選(xuan)機(ji)(ji)在使(shi)用(yong)過程(cheng)中(zhong)，電(dian)機(ji)(ji)的(de)(de)運轉決(jue)定了(le)磁(ci)(ci)選(xuan)過程(cheng)的(de)(de)進行，所(suo)以(yi)合理(li)安(an)全的(de)(de)操作、正確的(de)(de)維護(hu)可提高磁(ci)(ci)選(xuan)的(de)(de)效率和持久的(de)(de)使(shi)用(yong)電(dian)機(ji)(ji)設備(bei)。為此遠力(li)磁(ci)(ci)電(dian)為大家說明(ming)在使(shi)用(yong)Y系列電(dian)機(ji)(ji)時(shi)，應注意的(de)(de)事項及(ji)對(dui)永(yong)磁(ci)(ci)筒式(shi)磁(ci)(ci)選(xuan)機(ji)(ji)電(dian)機(ji)(ji)的(de)(de)維護(hu)方法。

2、我們知(zhi)道電(dian)機(ji)(ji)會隨(sui)(sui)著時(shi)間(jian)會慢(man)慢(man)升溫，這是(shi)物理中我們所知(zhi)的(de)動(dong)能(neng)(neng)轉(zhuan)化成熱能(neng)(neng)，屬于(yu)內部(bu)功能(neng)(neng)損耗(hao)。隨(sui)(sui)著電(dian)機(ji)(ji)溫度(du)的(de)上(shang)升，遠(yuan)力要(yao)求客戶做到經常檢查電(dian)動(dong)機(ji)(ji)的(de)軸(zhou)(zhou)承、定(ding)子、外殼等部(bu)位的(de)溫度(du)有(you)無(wu)(wu)(wu)異(yi)常變化，尤(you)其對無(wu)(wu)(wu)電(dian)壓(ya)、電(dian)流和(he)頻率監(jian)視及沒有(you)過載(zai)保護的(de)電(dian)機(ji)(ji)，對溫升的(de)監(jian)視更(geng)為重(zhong)要(yao)。若發現(xian)電(dian)機(ji)(ji)軸(zhou)(zhou)承附近的(de)溫度(du)過高，就應立即停機(ji)(ji)檢查。軸(zhou)(zhou)承的(de)滾動(dong)體、滾道表面有(you)無(wu)(wu)(wu)裂(lie)紋(wen)、劃傷或損缺(que)，軸(zhou)(zhou)承間(jian)隙是(shi)否過大晃動(dong)，內環(huan)在軸(zhou)(zhou)上(shang)有(you)無(wu)(wu)(wu)轉(zhuan)動(dong)等。出現(xian)上(shang)述任何一種現(xian)象，都必須更(geng)新(xin)軸(zhou)(zhou)承后方可再行作業。

3、同時(shi)要(yao)注意檢(jian)查(cha)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)三(san)(san)(san)相電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)是(shi)否平(ping)衡。三(san)(san)(san)相異步(bu)電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)，其三(san)(san)(san)相電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)任何(he)一(yi)相電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)與其它兩相電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)平(ping)均值之差(cha)不允許超過(guo)，這樣(yang)才(cai)能(neng)保證電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)安(an)全運行(xing)(xing)。如果超過(guo)則表(biao)明電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)有故障，必須查(cha)明原(yuan)因(yin)及時(shi)排(pai)除(chu)。并保持電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)經常(chang)在(zai)(zai)(zai)額(e)定(ding)電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)下工作。磁選機(ji)(ji)(ji)(ji)的(de)(de)電(dian)(dian)(dian)機(ji)(ji)(ji)(ji)過(guo)載(zai)運行(xing)(xing)，主要(yao)原(yuan)因(yin)是(shi)由(you)于拖動(dong)(dong)的(de)(de)負荷過(guo)大，電(dian)(dian)(dian)壓過(guo)低，或被帶動(dong)(dong)的(de)(de)機(ji)(ji)(ji)(ji)械(xie)卡(ka)滯等造成(cheng)的(de)(de)。若過(guo)載(zai)時(shi)間過(guo)長，電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)將從電(dian)(dian)(dian)網中吸收大量的(de)(de)有功(gong)功(gong)率，電(dian)(dian)(dian)流(liu)(liu)(liu)(liu)便急劇增大，溫度(du)也隨(sui)之上(shang)升(sheng)，在(zai)(zai)(zai)高溫下電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)的(de)(de)絕緣便老化失效而燒毀。因(yin)此，電(dian)(dian)(dian)動(dong)(dong)機(ji)(ji)(ji)(ji)在(zai)(zai)(zai)運行(xing)(xing)中，要(yao)注意經常(chang)檢(jian)查(cha)傳動(dong)(dong)裝置(zhi)運轉(zhuan)是(shi)否靈(ling)活、可靠.連(lian)軸器的(de)(de)同心度(du)是(shi)否標準齒輪傳動(dong)(dong)的(de)(de)靈(ling)活性等，若發現有滯卡(ka)現象，應立(li)即停機(ji)(ji)(ji)(ji)查(cha)明原(yuan)因(yin)排(pai)除(chu)故障后(hou)再運行(xing)(xing)。

4、如(ru)果在磁(ci)(ci)選過程，永(yong)磁(ci)(ci)筒式磁(ci)(ci)選機(ji)(ji)電(dian)(dian)機(ji)(ji)若出(chu)現振動(dong)，會(hui)引起與(yu)之相(xiang)連的(de)負載部分(fen)不同心度增高，形成電(dian)(dian)動(dong)機(ji)(ji)負載增大，出(chu)現超負荷運行，就會(hui)燒毀磁(ci)(ci)選機(ji)(ji)的(de)電(dian)(dian)動(dong)機(ji)(ji)。因此(ci)，電(dian)(dian)機(ji)(ji)在運行中(zhong)，尤其是(shi)大功(gong)率電(dian)(dian)動(dong)機(ji)(ji)更要(yao)經常(chang)檢查(cha)地腳螺栓、電(dian)(dian)動(dong)機(ji)(ji)端蓋、軸(zhou)承壓蓋等是(shi)否(fou)松動(dong)，接地裝置是(shi)否(fou)可靠，發現問題(ti)及時解決。

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