电(dian)动机电(dian)流(liu)不(bu)稳定，如何(he)(he)解决(jue)？电(dian)源平(ping)衡(heng)时(shi)，三相(xiang)空(kong)转电(dian)流(liu)中任何(he)(he)一(yi)相(xiang)与三相(xiang)平(ping)均(jun)值(zhi)偏(pian)差不(bu)大于(yu)三相(xiang)平(ping)均(jun)值(zhi)的10%，当有(you)人遇到三相(xiang)电(dian)流(liu)不(bu)稳定，应(ying)先考虑(lv)是(shi)(shi)哪(na)方面出了问题(ti)，绝大部分都是(shi)(shi)电(dian)源方面的问题(ti)（包括本(ben)身电(dian)压不(bu)平(ping)衡(heng)和接线接触不(bu)良所导致的），具体还是(shi)(shi)需要通过检测(ce)的方法(fa)排除(chu)（若电(dian)流(liu)出现最(zui)(zui)高或最(zui)(zui)低，说明(ming)电(dian)源有(you)问题(ti)，若最(zui)(zui)高或最(zui)(zui)低固(gu)定不(bu)动，说明(ming)电(dian)机有(you)问题(ti)）电(dian)机超载(zai)如何(he)(he)处理(li)？将传(chuan)送(song)皮(pi)带除(chu)去，用手转动机器的主轴(zhou)，看轴(zhou)是(shi)(shi)否灵活，...
防(fang)爆(bao)(bao)(bao)配电(dian)(dian)箱(xiang)(xiang)(xiang)(xiang)是(shi)一(yi)种(zhong)具(ju)备防(fang)爆(bao)(bao)(bao)特性类别的(de)配电(dian)(dian)箱(xiang)(xiang)(xiang)(xiang)，广(guang)泛使用(yong)(yong)于易燃易爆(bao)(bao)(bao)物(wu)品(pin)场地(di)，如(ru)煤矿(kuang)业、原油、化工(gong)(gong)(gong)厂、加(jia)油气(qi)站、冶金工(gong)(gong)(gong)业、天然(ran)气(qi)、药业、针(zhen)织(zhi)厂、食品(pin)加(jia)工(gong)(gong)(gong)厂等。这种(zhong)公(gong)司生产(chan)制造(zao)工(gong)(gong)(gong)作中时将会有(you)易燃易爆(bao)(bao)(bao)气(qi)体混合物(wu)质(zhi)或烟尘外溢，当易燃易爆(bao)(bao)(bao)物(wu)品(pin)气(qi)体碰(peng)到普通(tong)(tong)(tong)的(de)照明(ming)配电(dian)(dian)箱(xiang)(xiang)(xiang)(xiang)易引起发(fa)生爆(bao)(bao)(bao)炸起火，危害生产(chan)制造(zao)及员工(gong)(gong)(gong)的(de)生命安全，因(yin)而在这种(zhong)场所(suo)安裝防(fang)爆(bao)(bao)(bao)电(dian)(dian)气(qi)设备是(shi)很有(you)需要的(de)。 一(yi)、防(fang)爆(bao)(bao)(bao)配电(dian)(dian)箱(xiang)(xiang)(xiang)(xiang)和(he)普通(tong)(tong)(tong)的(de)配电(dian)(dian)箱(xiang)(xiang)(xiang)(xiang)的(de)差别 1、在形态上，一(yi)般(ban)配电(dian)(dian)箱(xiang)(xiang)(xiang)(xiang)通(tong)(tong)(tong)常为(wei)铁质(zhi)的(de)，而防(fang)爆(bao)(bao)(bao)配电(dian)(dian)箱(xiang)(xiang)(xiang)(xiang)一(yi)般(ban)选用(yong)(yong)铝合金型材机壳(qiao)压铸成形或高品(pin)质(zhi)厚钢板焊接成形，表层通(tong)(tong)(tong)过(guo)静电(dian)(dian)
１、电(dian)(dian)(dian)(dian)动(dong)机(ji)(ji)通(tong)电(dian)(dian)(dian)(dian)后(hou)不启(qi)(qi)动(dong)该故(gu)障除了电(dian)(dian)(dian)(dian)源回路(lu)、电(dian)(dian)(dian)(dian)机(ji)(ji)绕(rao)(rao)组不良外，大多(duo)(duo)是电(dian)(dian)(dian)(dian)机(ji)(ji)的(de)启(qi)(qi)动(dong)电(dian)(dian)(dian)(dian)路(lu)异常(chang)(chang)。电(dian)(dian)(dian)(dian)扇、排风扇、洗(xi)衣(yi)机(ji)(ji)等(deng)电(dian)(dian)(dian)(dian)机(ji)(ji)一(yi)般采用(yong)电(dian)(dian)(dian)(dian)容器启(qi)(qi)动(dong)运(yun)转(zhuan)；而电(dian)(dian)(dian)(dian)冰箱(xiang)、冷柜等(deng)的(de)电(dian)(dian)(dian)(dian)机(ji)(ji)多(duo)(duo)采用(yong)电(dian)(dian)(dian)(dian)阻(zu)(zu)分相启(qi)(qi)动(dong)运(yun)转(zhuan)，一(yi)旦启(qi)(qi)动(dong)电(dian)(dian)(dian)(dian)路(lu)中(zhong)的(de)电(dian)(dian)(dian)(dian)容器或分相电(dian)(dian)(dian)(dian)阻(zu)(zu)损(sun)坏，电(dian)(dian)(dian)(dian)机(ji)(ji)就不能(neng)正常(chang)(chang)运(yun)转(zhuan)，检(jian)修(xiu)时(shi)应先排除启(qi)(qi)动(dong)电(dian)(dian)(dian)(dian)路(lu)故(gu)障后(hou)再查电(dian)(dian)(dian)(dian)机(ji)(ji)故(gu)障。若(ruo)启(qi)(qi)动(dong)电(dian)(dian)(dian)(dian)路(lu)正常(chang)(chang)，则可能(neng)是电(dian)(dian)(dian)(dian)动(dong)机(ji)(ji)内部绕(rao)(rao)组局(ju)部短路(lu)或断(duan)路(lu)，可用(yong)万(wan)用(yong)表Ｒ×１挡(dang)测各(ge)绕(rao)(rao)组电(dian)(dian)(dian)(dian)阻(zu)(zu)值来判(pan)断(duan)。如(ru)电(dian)(dian)(dian)(dian)冰箱(xiang)压缩机(ji)(ji)电(dian)(dian)(dian)(dian)机(ji)(ji)，正常(chang)(chang)情...
1、注(zhu)意减少轴承(cheng)(cheng)故障(zhang) 电(dian)(dian)动机轴承(cheng)(cheng)故障(zhang)有：内(nei)套(tao)与套(tao)与端盖(gai)问发生相对运动；径间(jian)、轴问间(jian)隙(xi)超过允许值；滚珠(zhu)(柱)严重(zhong)磨损(sun)局部损(sun)坏(huai)、脱落(luo)，麻点甚至(zhi)碎(sui)裂；轴承(cheng)(cheng)架活动等(deng)。发现(xian)上述故障(zhang)之一，都要(yao)认真修(xiu)(xiu)理(li)，直到(dao)更(geng)换合(he)格(ge)(ge)的(de)(de)新轴承(cheng)(cheng)。2、更(geng)换润(run)滑油(you)(脂) 检修(xiu)(xiu)时，要(yao)将(jiang)轴承(cheng)(cheng)的(de)(de)润(run)滑油(you)(脂)全部清(qing)除掉。用(yong)汽油(you)(或(huo)清(qing)洗(xi)剂(ji))洗(xi)净(jing)，用(yong)干净(jing)的(de)(de)白布(bu)擦(ca)干，根据电(dian)(dian)动机的(de)(de)转速度和用(yong)途，换上相应(ying)的(de)(de)、合(he)格(ge)(ge)的(de)(de)润(run)滑油(you)(脂)。3、更(geng)换损(sun)坏(huai)的(de)(de)风叶 风叶是电(dian)(dian)机自(zi)...
1、轴(zhou)瓦(wa)的(de)(de)清(qing)洗与(yu)检查(cha) 大型电机(ji)轴(zhou)承(cheng)(cheng)均单独装箱运来(lai)，开箱后先用(yong)吊环(huan)螺丝将(jiang)(jiang)上瓦(wa)和(he)下瓦(wa)分别取出作好记号并用(yong)煤(mei)油清(qing)洗，用(yong)干布擦干并检查(cha)所有(you)槽(cao)沟是否干净，有(you)无铸造(zao)残留砂子，钨金层与(yu)瓦(wa)体结合不好，划出的(de)(de)沟道、裂纹存在砂眼和(he)其它掺(chan)杂物(wu)等）。若无法修复时，则要重新挂钨金。2、轴(zhou)承(cheng)(cheng)座(zuo)的(de)(de)清(qing)洗与(yu)检查(cha) 轴(zhou)承(cheng)(cheng)座(zuo)安装引(yin)前，也应(ying)进全面清(qing)洗检查(cha)。将(jiang)(jiang)轴(zhou)承(cheng)(cheng)座(zuo)内腔用(yong)刮(gua)刀将(jiang)(jiang)脏(zang)物(wu)刮(gua)去，用(yong)布蘸汽(qi)油或(huo)溶剂将(jiang)(jiang)脏(zang)物(wu)擦净，观看(kan)有(you)无裂纹及(ji)砂眼，以防止在...
随着智能(neng)(neng)家(jia)居的(de)兴起与发(fa)展，以自动感知、智能(neng)(neng)控制(zhi)、自动执(zhi)行为特征的(de)智能(neng)(neng)家(jia)电(dian)(dian)(dian)成为行业发(fa)展的(de)趋势，而(er)直流(liu)电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)作为最(zui)重(zhong)要的(de)自动控制(zhi)执(zhi)行器之一，开(kai)始在智能(neng)(neng)家(jia)电(dian)(dian)(dian)和智能(neng)(neng)厨(chu)电(dian)(dian)(dian)中(zhong)被广(guang)泛使用(yong)。然而(er)，厨(chu)电(dian)(dian)(dian)中(zhong)使用(yong)的(de)直流(liu)电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)，长期(qi)工作在高(gao)温、潮湿、多盐等(deng)腐(fu)蚀性物质的(de)环(huan)境中(zhong)，再(zai)加上其频繁启停，直流(liu)电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)故障(zhang)频发(fa)，成为困(kun)扰(rao)智能(neng)(neng)家(jia)电(dian)(dian)(dian)生产厂商和用(yong)户的(de)一大难(nan)题。直流(liu)电(dian)(dian)(dian)机(ji)(ji)(ji)(ji)结构(gou)相对(dui)简(jian)单，主要由磁(ci)瓦、换向器、电(dian)(dian)(dian)刷(shua)、绕(rao)组(zu)、刷(shua)架、轴承等(deng)零部件组(zu)...
直(zhi)流(liu)(liu)减(jian)(jian)速(su)(su)电机的(de)使用(yong)(yong)变(bian)得很普遍，并且这种设(she)备(bei)的(de)使用(yong)(yong)效果良(liang)好，受(shou)到很多厂(chang)家的(de)青睐，关于(yu)这种设(she)备(bei)的(de)知识点，大(da)家了(le)(le)解(jie)的(de)如何(he)呢，下(xia)(xia)面这篇文(wen)章为大(da)家详(xiang)细讲解(jie)，大(da)家一起来了(le)(le)解(jie)一下(xia)(xia)吧。 直(zhi)流(liu)(liu)减(jian)(jian)速(su)(su)电机扭矩(ju)的(de)计(ji)算方法：1、知道(dao)直(zhi)流(liu)(liu)减(jian)(jian)速(su)(su)电机的(de)功率和速(su)(su)比及使用(yong)(yong)系(xi)数，求(qiu)减(jian)(jian)速(su)(su)机扭矩(ju)如下(xia)(xia)公式(shi)： 减(jian)(jian)速(su)(su)机扭矩(ju)=9550×电机功率÷电机功率输入转数×速(su)(su)比×使用(yong)(yong)系(xi)数。2、知道(dao)扭矩(ju)和减(jian)(jian)速(su)(su)机输出转数及使用(yong)(yong)系(xi)数，求(qiu)直(zhi)流(liu)(liu)电动机所(suo)需(xu)配电机功率如下(xia)(xia)公...
春天(tian)天(tian)气比较(jiao)潮湿，生(sheng)产现(xian)场中，由于电(dian)(dian)(dian)(dian)机(ji)选型原因及(ji)(ji)保管、维护不当、环境等因素(su)致使(shi)潮气进(jin)入电(dian)(dian)(dian)(dian)动(dong)机(ji)内部形成凝露或(huo)电(dian)(dian)(dian)(dian)动(dong)机(ji)直接进(jin)水(shui)，导致电(dian)(dian)(dian)(dian)动(dong)机(ji)绝缘电(dian)(dian)(dian)(dian)阻下(xia)降，影(ying)响电(dian)(dian)(dian)(dian)动(dong)机(ji)的(de)(de)正常使(shi)用(yong)及(ji)(ji)运行安(an)全。本文主要针对现(xian)场受潮的(de)(de)鼠笼型电(dian)(dian)(dian)(dian)机(ji)在不同状(zhuang)况下(xia)干(gan)燥(zao)处(chu)理(li)的(de)(de)方法(fa)(fa)(fa)进(jin)行分析介(jie)绍(shao)，重点介(jie)绍(shao)电(dian)(dian)(dian)(dian)流(liu)干(gan)燥(zao)法(fa)(fa)(fa)及(ji)(ji)铁损干(gan)燥(zao)法(fa)(fa)(fa)的(de)(de)原理(li)及(ji)(ji)现(xian)场应用(yong)方法(fa)(fa)(fa)。小容量异步电(dian)(dian)(dian)(dian)动(dong)机(ji)受潮干(gan)燥(zao)方法(fa)(fa)(fa):小容量异步电(dian)(dian)(dian)(dian)动(dong)机(ji)拆卸、解体较(jiao)为方便，可根据现(xian)场环境就(jiu)地进(jin)行干(gan)燥(zao)处(chu)理(li)或(huo)拆...
永(yong)磁(ci)直(zhi)流(liu)(liu)电(dian)(dian)(dian)(dian)机(ji)(ji)运(yun)行过程震(zhen)动(dong)原因(yin):第(di)一、否(fou)三相(xiang)电(dian)(dian)(dian)(dian)压平(ping)衡(heng)第(di)一张支票(piao)，并拧(ning)紧地脚螺(luo)栓，基(ji)础松动(dong)检查(不(bu)会被(bei)地面(mian)松动(dong)，啊)功率测(ce)试，如(ru)果(guo)无(wu)效(xiao)，下一步。第(di)二、释放负(fu)荷(he)(皮带(dai)，齿(chi)轮等)，永(yong)磁(ci)直(zhi)流(liu)(liu)电(dian)(dian)(dian)(dian)机(ji)(ji) 微(wei)型减速电(dian)(dian)(dian)(dian)机(ji)(ji) 永(yong)磁(ci)永(yong)磁(ci)直(zhi)流(liu)(liu)电(dian)(dian)(dian)(dian)机(ji)(ji) 永(yong)磁(ci)直(zhi)流(liu)(liu)电(dian)(dian)(dian)(dian)机(ji)(ji)调速器 微(wei)电(dian)(dian)(dian)(dian)机(ji)(ji)电(dian)(dian)(dian)(dian)源测(ce)试，以(yi)确定它是否(fou)是由不(bu)平(ping)衡(heng)负(fu)载(zai)，如(ru)果(guo)是这样，调整负(fu)荷(he)，与(yu)DC电(dian)(dian)(dian)(dian)机(ji)(ji)轴(zhou)平(ping)行的纵向(xiang)以(yi)便。如(ru)果(guo)无(wu)效(xiao)，下一步。第(di)三、永(yong)磁(ci)直(zhi)流(liu)(liu)电(dian)(dian)(dian)(dian)机(ji)(ji)维(wei)修师检查螺(luo)丝盖的密封(feng)性(xing)，是按(an)对角顺序系带(dai)...
高(gao)速(su)电(dian)机(ji)在以下各方面具有(you)广(guang)阔的(de)(de)(de)应(ying)用(yong)前景：1、高(gao)速(su)电(dian)机(ji)在空调(diao)或冰箱的(de)(de)(de)离心式(shi)压缩机(ji)等(deng)各种场合得(de)到应(ying)用(yong)，而(er)随着(zhe)科学(xue)技术的(de)(de)(de)发(fa)展，特殊要求越(yue)来(lai)越(yue)多，它的(de)(de)(de)应(ying)用(yong)也会越(yue)来(lai)越(yue)广(guang)泛。2、随着(zhe)汽(qi)车(che)工业混合动(dong)(dong)力汽(qi)车(che)的(de)(de)(de)发(fa)展，体积小(xiao)，重(zhong)量轻的(de)(de)(de)高(gao)速(su)发(fa)电(dian)机(ji)将会得(de)到充分的(de)(de)(de)重(zhong)视(shi)，并在混合动(dong)(dong)力汽(qi)车(che)，航空，船舶等(deng)领域具有(you)良(liang)好的(de)(de)(de)应(ying)用(yong)前景。3、由(you)燃气轮机(ji)驱动(dong)(dong)的(de)(de)(de)高(gao)速(su)发(fa)电(dian)机(ji)体积小(xiao)，具有(you)较高(gao)的(de)(de)(de)机(ji)动(dong)(dong)性，可用(yong)于一些重(zhong)要设(she)施的(de)(de)(de)备用(yong)电(dian)源，也可作为独(du)立电(dian)源或小(xiao)...
高速(su)(su)电机维(wei)修(xiu)(xiu)方法(fa)： 对于(yu)高速(su)(su)电机，用维(wei)修(xiu)(xiu)普(pu)通电机的一(yi)(yi)般方法(fa)维(wei)修(xiu)(xiu)，未必能修(xiu)(xiu)好(hao)(hao)，修(xiu)(xiu)好(hao)(hao)后，未必能长时(shi)间(jian)使用。根据国内外实践(jian)经验。介绍(shao)一(yi)(yi)下转速(su)(su)为20000RPM 高速(su)(su)电机与一(yi)(yi)般低(di)速(su)(su)电机不(bu)同(tong)的维(wei)修(xiu)(xiu)方法(fa)。1、拆卸电枢： 观察电机运转时(shi)碳刷(shua)(shua)与换向(xiang)(xiang)器之间(jian)是(shi)否产生火(huo)花(hua)，出(chu)现火(huo)花(hua)的程度。（1）是(shi)无(wu)任何火(huo)花(hua)。说明碳刷(shua)(shua)与换向(xiang)(xiang)器都(dou)正(zheng)常，无(wu)需修(xiu)(xiu)理(li)。（2）只是(shi)有2～4个极小(xiao)火(huo)花(hua)。这时(shi)仔细观察换向(xiang)(xiang)器表面若是(shi)平整的。大多数情况(kuang)可(ke)不(bu)必修(xiu)(xiu)理(li)。...
直(zhi)(zhi)流电(dian)(dian)(dian)机(ji)维(wei)修(xiu)在逐步加(jia)快推进以国(guo)(guo)内市场(chang)为主，向国(guo)(guo)内、国(guo)(guo)际(ji)同步发展的(de)转型(xing)，加(jia)快推进由制(zhi)造(zao)商向成(cheng)套供(gong)货商、系(xi)统(tong)服(fu)务(wu)商转型(xing)。必需(xu)要(yao)不停地学(xue)习，伺(si)服(fu)电(dian)(dian)(dian)机(ji)的(de)维(wei)修(xiu)中。用(yong)一(yi)个个方(fang)法(fa)去总结(jie)。伺(si)服(fu)电(dian)(dian)(dian)机(ji)维(wei)修(xiu)为大家简析怎(zen)样去改(gai)变(bian)(bian)直(zhi)(zhi)流电(dian)(dian)(dian)机(ji)的(de)转速(su)(su)。直(zhi)(zhi)流电(dian)(dian)(dian)机(ji)转速(su)(su)的(de)控制(zhi)方(fang)法(fa)调节电(dian)(dian)(dian)枢电(dian)(dian)(dian)压。改(gai)变(bian)(bian)电(dian)(dian)(dian)枢电(dian)(dian)(dian)压从而(er)改(gai)变(bian)(bian)转速(su)(su)，属恒(heng)转矩调速(su)(su)方(fang)法(fa)，动态响应快，适用(yong)于要(yao)求大范(fan)围无级平(ping)滑调速(su)(su)的(de)系(xi)统(tong)。使电(dian)(dian)(dian)动机(ji)从额(e)定(ding)转速(su)(su)向上变(bian)(bian)速(su)(su)，改(gai)变(bian)(bian)电(dian)(dian)(dian)机(ji)主磁通中只能减(jian)弱...
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