中文字幕亚洲乱码熟女一区二区_性欧美大战久久久久久久久_秋霞国产成人精品午夜视频APP_一本一道AⅤ无码中文字幕

電(dian)(dian)動(dong)機(ji)(ji)運行(xing)中(zhong)，電(dian)(dian)流應不(bu)(bu)(bu)(bu)超(chao)過(guo)銘(ming)牌(pai)上的額定(ding)(ding)電(dian)(dian)流，三相電(dian)(dian)流不(bu)(bu)(bu)(bu)平(ping)衡(heng)度(du)、空載時(shi)不(bu)(bu)(bu)(bu)超(chao)過(guo)10%，中(zhong)載以(yi)上時(shi)不(bu)(bu)(bu)(bu)超(chao)過(guo)5%。電(dian)(dian)源電(dian)(dian)壓與額定(ding)(ding)電(dian)(dian)壓的偏差不(bu)(bu)(bu)(bu)超(chao)過(guo)±5%，三相電(dian)(dian)壓不(bu)(bu)(bu)(bu)平(ping)衡(heng)度(du)不(bu)(bu)(bu)(bu)超(chao)過(guo)1.5%。電(dian)(dian)動(dong)機(ji)(ji)鐵(tie)心(xin)或機(ji)(ji)殼溫(wen)(wen)升(sheng)(sheng)應不(bu)(bu)(bu)(bu)超(chao)過(guo)該電(dian)(dian)機(ji)(ji)絕緣等(deng)級(ji)所規定(ding)(ding)的溫(wen)(wen)升(sheng)(sheng)值。E級(ji)為：80k（電(dian)(dian)阻法）；F級(ji)為：105K(電(dian)(dian)阻法)。電(dian)(dian)機(ji)(ji)應進(jin)行(xing)維修(xiu)(xiu)，每月應小修(xiu)(xiu)，年未應進(jin)行(xing)大修(xiu)(xiu)。每周應對電(dian)(dian)機(ji)(ji)進(jin)行(xing)集電(dian)(dian)環檢查及清除電(dian)(dian)機(ji)(ji)表面的灰塵。

1．YZ、YZR系列電動(dong)機的使用和維(wei)護特點

1)、YZ系列電(dian)動(dong)機可(ke)直接起(qi)動(dong)。YZR系列電(dian)動(dong)機起(qi)動(dong)時(shi)，轉子必須(xu)串入(ru)附加電(dian)阻或電(dian)抗，以(yi)限制(zhi)起(qi)動(dong)電(dian)流(liu)，被限制(zhi)的起(qi)動(dong)電(dian)流(liu)的平均值應不超(chao)過(guo)相(xiang)應工作(zuo)方式的額定電(dian)流(liu)的2倍。

2)、YZR系列電(dian)動(dong)機(ji)(ji)進(jin)行(xing)清理和(he)檢(jian)查(cha)時(shi)，打開觀察(cha)窗蓋(gai)板和(he)排塵(chen)孔蓋(gai)，應(ying)(ying)把(ba)集(ji)電(dian)環(huan)(huan)室清掃干(gan)凈(jing)。如果(guo)集(ji)電(dian)環(huan)(huan)表(biao)面有塵(chen)埃或油(you)(you)污時(shi)，可用浸汽(qi)油(you)(you)的抹布把(ba)塵(chen)埃、油(you)(you)污擦凈(jing)，待汽(qi)油(you)(you)揮發(fa)后才允許(xu)開車。 對于YZR電(dian)機(ji)(ji)，運行(xing)中應(ying)(ying)經常觀察(cha)電(dian)刷(shua)火花(hua)的大(da)小，檢(jian)查(cha)電(dian)刷(shua)、集(ji)電(dian)環(huan)(huan)表(biao)面的磨(mo)損情況。當(dang)運行(xing)中電(dian)刷(shua)發(fa)生火花(hua)時(shi)，應(ying)(ying)查(cha)明(ming)原理和(he)并進(jin)行(xing)處理。

3)、當集電(dian)(dian)環(huan)表(biao)面(mian)(mian)被磨(mo)損(sun)(sun)或被火(huo)花灼傷發黑時，輕微的(de)(de)可用細砂(sha)布(bu)小心(xin)地打磨(mo)光，并將(jiang)磨(mo)料清理干凈(jing)；嚴重(zhong)的(de)(de)（如出現凹槽(cao)），則(ze)需(xu)(xu)精車集電(dian)(dian)環(huan)的(de)(de)表(biao)面(mian)(mian)，使粗糙度(du)達(da)到(dao)1.6，徑向跳動小于(yu)0.04㎜。刷(shua)(shua)握底(di)面(mian)(mian)到(dao)集電(dian)(dian)環(huan)表(biao)面(mian)(mian)的(de)(de)距(ju)離應保持3㎜左右。 當電(dian)(dian)刷(shua)(shua)磨(mo)損(sun)(sun)到(dao)不能保持正常位置和(he)壓力時，或電(dian)(dian)刷(shua)(shua)磨(mo)損(sun)(sun)到(dao)原高度(du)的(de)(de)1/3時，應按說明書的(de)(de)要求更換刷(shua)(shua)塊，更換后的(de)(de)新電(dian)(dian)刷(shua)(shua)與集電(dian)(dian)環(huan)接觸(chu)面(mian)(mian)需(xu)(xu)加(jia)工(gong)成(cheng)(cheng)相應的(de)(de)圓弧，保證(zheng)電(dian)(dian)刷(shua)(shua)與集電(dian)(dian)環(huan)有良好的(de)(de)接觸(chu)（接觸(chu)面(mian)(mian)不小于(yu)總面(mian)(mian)積(ji)的(de)(de)75%）。加(jia)工(gong)時用細砂(sha)布(bu)固(gu)定在集電(dian)(dian)環(huan)表(biao)面(mian)(mian)，將(jiang)電(dian)(dian)刷(shua)(shua)模擬(ni)工(gong)況在砂(sha)布(bu)上(shang)磨(mo)削(xue)成(cheng)(cheng)所需(xu)(xu)的(de)(de)圓弧。

2．電磁(ci)制動(dong)器的使用(yong)和維(wei)護特點

　　YZE、YZRE系(xi)列電(dian)(dian)磁(ci)制動(dong)(dong)電(dian)(dian)動(dong)(dong)機采(cai)用(yong)失電(dian)(dian)（斷電(dian)(dian)）制動(dong)(dong)器(qi)(qi)(qi)。 電(dian)(dian)動(dong)(dong)機使用(yong)前應對制動(dong)(dong)器(qi)(qi)(qi)進行(xing)檢(jian)查(cha)(cha)。扳(ban)動(dong)(dong)釋放螺栓，看其是否靈(ling)活，并能否解除制動(dong)(dong)，在確(que)認(ren)無(wu)誤時，再(zai)接通電(dian)(dian)源進行(xing)空(kong)載(zai)運(yun)(yun)行(xing)。若電(dian)(dian)動(dong)(dong)機接入(ru)電(dian)(dian)源后(hou)制動(dong)(dong)器(qi)(qi)(qi)仍未脫(tuo)開(kai)，此時電(dian)(dian)動(dong)(dong)機仍將處在制動(dong)(dong)狀態(tai)，必須立即(ji)切斷電(dian)(dian)源，以免燒(shao)壞電(dian)(dian)機，檢(jian)查(cha)(cha)電(dian)(dian)磁(ci)制動(dong)(dong)器(qi)(qi)(qi)整流激磁(ci)電(dian)(dian)路(lu)，排除故(gu)障后(hou)再(zai)投入(ru)試運(yun)(yun)行(xing)。在電(dian)(dian)動(dong)(dong)機空(kong)載(zai)運(yun)(yun)行(xing)一段時間后(hou)，應停車(che)(che)檢(jian)查(cha)(cha)一次，觀察各(ge)機械聯接部分有無(wu)松動(dong)(dong)；軸承(cheng)有無(wu)過熱漏油現象；制動(dong)(dong)器(qi)(qi)(qi)是否能完全(quan)脫(tuo)開(kai)。如在空(kong)載(zai)運(yun)(yun)行(xing)中有任何不(bu)正常(chang)現象和(he)響聲，應立即(ji)停車(che)(che)檢(jian)查(cha)(cha)，并作必要的調(diao)整和(he)修復，然后(hou)再(zai)進行(xing)負(fu)載(zai)運(yun)(yun)行(xing)。 制動(dong)(dong)器(qi)(qi)(qi)的維護和(he)空(kong)隙(xi)調(diao)整，詳見(jian)說明書。

3．變(bian)極多(duo)速電動機的(de)使用和維(wei)護特(te)點(dian)

變(bian)(bian)(bian)極多速(su)(su)電(dian)(dian)動機(ji)采用改變(bian)(bian)(bian)繞組(zu)的(de)接法來改變(bian)(bian)(bian)電(dian)(dian)機(ji)的(de)極數(shu)和輸(shu)出(chu)功率(lv)，使與機(ji)械(xie)設(she)備的(de)負(fu) 載特性相匹配，以簡化其(qi)變(bian)(bian)(bian)速(su)(su)系(xi)統，并可(ke)節(jie)省大量(liang)電(dian)(dian)能。多速(su)(su)電(dian)(dian)動機(ji)除繞組(zu)設(she)計外(wai)，電(dian)(dian)機(ji) 的(de) 主(zhu)要零部件與基本系(xi)列(lie)相同。多速(su)(su)電(dian)(dian)動機(ji)有雙速(su)(su)、三速(su)(su)和四(si)速(su)(su)三種(zhong)。極比有4/8、 4/12、4/6、6/16、4/24、6/24、4/6/24、4/8/32、2/4/20、4/6/8/12等多種(zhong)。