一、檢查
1、認真檢查銘牌數據,確認電動機型號符合使用要求。渝北汽保設備配件
2、用500V兆歐表測量電(dian)(dian)動(dong)機(ji)繞組(zu)對(dui)外(wai)殼的絕緣(yuan)電(dian)(dian)阻(zu),絕緣(yuan)電(dian)(dian)阻(zu) 應大于0.5MΩ。
二、安裝
1、電動(dong)機(ji)—般安裝在(zai)室內(nei)清潔、干燥(zao)的(de)場所,周(zhou)圍必須通風良好,環境空氣更(geng)高溫(wen)度(du)不(bu)超過40℃,更(geng)低(di)(di)溫(wen)度(du)不(bu)低(di)(di)于(yu)-15℃,并應防止強烈的(de)熱輻射。
2、電(dian)(dian)動(dong)(dong)機控制電(dian)(dian)器應有缺相保(bao)護(hu)和(he)過(guo)載(zai)熱(re)保(bao)護(hu)裝置(zhi),YA系列增安(an)型電(dian)(dian)動(dong)(dong)機須根據銘牌tE時間及起動(dong)(dong)電(dian)(dian)流比IA/IN選擇(ze)合適(shi)的過(guo)載(zai)熱(re)保(bao)護(hu)裝置(zhi)。
3、按接線圖接電(dian)(dian)源(yuan)線接線頭連接要(yao)緊固,帶引出電(dian)(dian)纜、電(dian)(dian)線的電(dian)(dian)動(dong)機,可(ke)直接和電(dian)(dian)源(yuan)線連接,接頭處要(yao)絕緣(yuan)密封。
4、當電(dian)源線,相序和電(dian)動粗接線頭標志對應連接時(shi),從(cong)軸伸端看電(dian)動機順時(shi)針旋轉(zhuan)。需要改變(bian)轉(zhuan)向時(shi),改變(bian)兩根電(dian)源線接線的(de)位(wei)置即(ji)可(ke)。
5、YD系列(lie)等變級多(duo)速(su)異步電(dian)動機是利用(yong)換(huan)接(jie)引(yin)出線的(de)(de)方(fang)法來控(kong)制(zhi)轉(zhuan)速(su)變化的(de)(de),為(wei)保證多(duo)速(su)電(dian)動機運行(xing)的(de)(de)可靠性(xing),設計和操作控(kong)制(zhi)裝置時應注意,在高速(su)切(qie)換(huan)為(wei)低(di)(di)速(su)時,必須在切(qie)斷(duan)電(dian)源(yuan)的(de)(de)同時斷(duan)開2Y接(jie)線的(de)(de)中性(xing)點,以免在低(di)(di)速(su)繞組接(jie)通時引(yin)起電(dian)源(yuan)短路.在高速(su)切(qie)換(huan)為(wei)低(di)(di)速(su)的(de)(de)過程中,必續(xu)待電(dian)動機停轉(zhuan)后(hou)才能接(jie)通低(di)(di)速(su)繞組的(de)(de)電(dian)源(yuan),以減(jian)少(shao)對電(dian)動機及負載的(de)(de)沖擊.轉(zhuan)速(su)切(qie)換(huan)要注意電(dian)動機的(de)(de)轉(zhuan)向。
6、電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)可(ke)以采有聯(lian)軸(zhou)(zhou)器(qi)(qi),齒輪、皮(pi)帶與負(fu)載機(ji)(ji)械聯(lian)接,4kw以上的(de)2極電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)30kw以上的(de)4極電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)不宜(yi)用(yong)皮(pi)帶傳(chuan)動(dong)(dong)(dong)(dong)(dong),雙軸(zhou)(zhou)伸電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)的(de)第二(er)軸(zhou)(zhou)伸只能用(yong)聯(lian)軸(zhou)(zhou)囂傳(chuan)動(dong)(dong)(dong)(dong)(dong)。聯(lian)軸(zhou)(zhou)器(qi)(qi)、皮(pi)帶輪軸(zhou)(zhou)孔與電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)的(de)配合(he)(he)松(song)緊應合(he)(he)適,安(an)裝時嚴(yan)禁(jin)用(yong)重錘敲擊(ji)。 采用(yong)聯(lian)軸(zhou)(zhou)器(qi)(qi)傳(chuan)動(dong)(dong)(dong)(dong)(dong)時,電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)中(zhong)(zhong)(zhong)心線(xian)與負(fu)載機(ji)(ji)械軸(zhou)(zhou)中(zhong)(zhong)(zhong)心線(xian)應重合(he)(he),聯(lian)軸(zhou)(zhou)器(qi)(qi)軸(zhou)(zhou)向保留1~3mm間隙。 采用(yong)皮(pi)帶傳(chuan)達室動(dong)(dong)(dong)(dong)(dong)時,電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)機(ji)(ji)軸(zhou)(zhou)中(zhong)(zhong)(zhong)心線(xian)應與負(fu)載機(ji)(ji)械軸(zhou)(zhou)中(zhong)(zhong)(zhong)心線(xian)平(ping)行,皮(pi)帶中(zhong)(zhong)(zhong)心線(xian)與軸(zhou)(zhou)中(zhong)(zhong)(zhong)心線(xian)相互垂(chui)直。
三、接地
電(dian)動機必須可靠(kao)接地(di),接地(di)方式、接地(di)電(dian)阻等應符(fu)合(he)《工業與民用 電(dian)力(li)裝置的接地(di)設(she)計規(gui)范》《工廠電(dian)力(li)設(she)計技術規(gui)范》等電(dian)氣安全管理 的規(gui)定,接地(di)電(dian)阻小于(yu)4Ω。
四、起動
1、合閘后電動機應立即起動起來,達到(dao)正常(chang)轉速并平穩運行,否 則皮立即切斷電源,檢查并排(pai)除故障。
2、起動后注(zhu)意觀察(cha)電(dian)動機(ji)傳動裝置、負載機(ji)械、電(dian)壓表和電(dian)流表, 若(ruo)有異常現象應立即停(ting)機(ji)。
3、電(dian)動機(ji)空載連續(xu)起動一般不超(chao)過4次,運行(xing)至熱態停(ting)機(ji)后連續(xu) 起動不得超(chao)過2次,否則容易(yi)燒壞電(dian)動機(ji)。
4、根據電網容量、負載大小和電動機功率等,合理選擇起動方式, 較大功率電動機宜采采用一三角法或降(jiang)壓方式起動。
五、運行
1、電(dian)源電(dian)壓(ya)與額定(ding)電(dian)壓(ya)的偏差(cha)不超過±5%,三(san)相電(dian)壓(ya)不平衡不超過1.5%。
2、電動(dong)機運行電流不(bu)得超過(guo)銘牌上的額定(ding)電流,三(san)相電流不(bu)平(ping)衡量(liang)不(bu)超過(guo)80%,否則(ze)會(hui)造(zao)成電動(dong)機發熱(re)甚(shen)至燒(shao)毀。
3、用溫(wen)度(du)計(ji)測量(liang)電動機機殼表面溫(wen)度(du)應不超(chao)過(guo)80℃,軸(zhou)承的溫(wen)度(du)應不超(chao)過(guo)95℃。
4、電動機(ji)應經常保(bao)持清潔、干燥、通風良好,進風口與出(chu)(chu)風口必霜保(bao)持暢(chang)通。5、運行中(zhong)電動機(ji)出(chu)(chu)現(xian)冒(mao)煙(yan)、劇烈振(zhen)動、異常聲音、特殊(shu)氣味、轉速明顯(xian)下(xia)降(jiang);負載設備出(chu)(chu)現(xian)故障;發生人身觸電時應立(li)即斷(duan)電停機(ji)。
六(liu)、軸承(cheng)潤(run)滑
1、電(dian)動(dong)機(ji)軸承潤(run)滑(hua)應良好,一般運(yun)行(xing)3000-5000小時后,應停(ting)機(ji)保養補充或更換(huan)潤(run)滑(hua)脂,潤(run)滑(hua)脂牌(pai)號為ZL--3鋰基潤(run)滑(hua)脂。
2、存(cun)放或(huo)停(ting)用時(shi)間超過兩年的電(dian)動機使用前應對軸承的潤滑(hua)情況(kuang)進行檢查(cha),必(bi)要時(shi)補充或(huo)更換(huan)潤滑(hua)脂。
3、中(zhong)(zhong)心(xin)高132及以(yi)(yi)下(xia)機(ji)座(zuo)號電(dian)(dian)動(dong)機(ji)用密(mi)封(feng)軸(zhou)(zhou)承(cheng)(cheng),中(zhong)(zhong)心(xin)高160以(yi)(yi) 上(shang)機(ji)座(zuo)號電(dian)(dian)動(dong)機(ji)一(yi)般用非(fei)密(mi)封(feng)軸(zhou)(zhou)承(cheng)(cheng),電(dian)(dian)動(dong)機(ji)使用過程中(zhong)(zhong)密(mi)封(feng)軸(zhou)(zhou)承(cheng)(cheng)不必 更(geng)換潤(run)(run)滑(hua)(hua)脂.非(fei)密(mi)封(feng)軸(zhou)(zhou)承(cheng)(cheng)應定期更(geng)換清潔的潤(run)(run)滑(hua)(hua)脂.潤(run)(run)滑(hua)(hua)脂加注(zhu)(zhu)要適 量(liang),一(yi)般填充軸(zhou)(zhou)承(cheng)(cheng)內外圈之間空腔的1/3-1/2,有注(zhu)(zhu)脂裝(zhuang)置的電(dian)(dian)動(dong)機(ji),用潤(run)(run)滑(hua)(hua)槍(qiang)加注(zhu)(zhu)3-4下(xia)即(ji)可(ke),加注(zhu)(zhu)前打開軸(zhou)(zhou)承(cheng)(cheng)蓋底部的排放(fang)孔(kong)或 蓋板(ban)(ban),電(dian)(dian)動(dong)機(ji)運行20分(fen)鐘后再堵上(shang)排放(fang)孔(kong)或上(shang)好蓋板(ban)(ban),拆裝(zhuang)排放(fang)孔(kong)螺 塞或蓋板(ban)(ban)時應斷電(dian)(dian)停機(ji)
七、運輸及貯存(cun)
在(zai)運輸過程中電動機應不受(shou)潮,軸伸不磕碰,零(ling)件不損壞等.貯(zhu) 存(cun)場所應保持清潔、干燥、通風,無腐蝕性(xing)氣(qi)體,避免環境溫度的急劇(ju)變化等。