子(zi)昂电(dian)(dian)机(ji)修(xiu)理的预防性试(shi)验(yan)(yan)(yan)(yan)介绍(shao):电(dian)(dian)机(ji)绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)试(shi)验(yan)(yan)(yan)(yan)主要(yao)有(you)绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)电(dian)(dian)阻试(shi)验(yan)(yan)(yan)(yan)、直(zhi)(zhi)流(liu)(liu)(liu)(liu)耐压(ya)(ya)及漏(lou)(lou)电(dian)(dian)流(liu)(liu)(liu)(liu)试(shi)验(yan)(yan)(yan)(yan)、交(jiao)流(liu)(liu)(liu)(liu)耐压(ya)(ya)试(shi)验(yan)(yan)(yan)(yan)。电(dian)(dian)机(ji)绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)主要(yao)有(you)各绕组(zu)对地绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan),相间绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan),匝(za)间绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)等。1、直(zhi)(zhi)流(liu)(liu)(liu)(liu)高压(ya)(ya)泄漏(lou)(lou)电(dian)(dian)流(liu)(liu)(liu)(liu)试(shi)验(yan)(yan)(yan)(yan)直(zhi)(zhi)流(liu)(liu)(liu)(liu)漏(lou)(lou)电(dian)(dian)流(liu)(liu)(liu)(liu)即电(dian)(dian)导(dao)电(dian)(dian)流(liu)(liu)(liu)(liu),它有(you)两部(bu)分组(zu)成,一部(bu)分沿(yan)绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)表面(mian)产生的电(dian)(dian)流(liu)(liu)(liu)(liu),一部(bu)分是(shi)绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)体内的离子(zi)电(dian)(dian)流(liu)(liu)(liu)(liu)。在给绕组(zu)施加(jia)直(zhi)(zhi)流(liu)(liu)(liu)(liu)电(dian)(dian)压(ya)(ya)初期,漏(lou)(lou)电(dian)(dian)流(liu)(liu)(liu)(liu)还包(bao)括电(dian)(dian)容(rong)(rong)充放电(dian)(dian)电(dian)(dian)流(liu)(liu)(liu)(liu)和吸收电(dian)(dian)流(liu)(liu)(liu)(liu),电(dian)(dian)容(rong)(rong)充放电(dian)(dian)电(dian)(dian)流(liu)(liu)(liu)(liu)是(shi)由绝(jue)(jue)(jue)(jue)缘(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)(yuan)体形(xing)状、几何尺寸(cun)和性质产生电(dian)(dian)容(rong)(rong)在交(jiao)变电(dian)(dian)场下形(xing)成的...
大型(xing)电机(ji)的(de)(de)日(ri)常(chang)维(wei)护,在运(yun)行过程中(zhong),应(ying)按运(yun)行规定的(de)(de)要(yao)求经(jing)常(chang)检查电动 机(ji)的(de)(de)工作状况,对换(huan)(huan)向器(qi)(qi)、电刷装置、通风系统及绕组绝缘等部位要(yao) 重(zhong)点加以维(wei)护。加强日(ri)常(chang)维(wei)护检查,是保证(zheng)电机(ji)安全运(yun)行的(de)(de)关键。1、大型(xing)电机(ji)应(ying)经(jing)常(chang)清理,保持清洁、防止(zhi)油(you)污、水等进(jin)入(ru)内部。2、换(huan)(huan)向器(qi)(qi)的(de)(de)维(wei)护。换(huan)(huan)向器(qi)(qi)的(de)(de)表(biao)面应(ying)很光洁,正常(chang)的(de)(de)换(huan)(huan)向器(qi)(qi)长期 运(yun)转后,表(biao)面会产生一层坚硬的(de)(de)深褐色的(de)(de)薄膜,呈现古铜色,颜色分 布均匀。这层薄膜可(ke)保护换(huan)(huan)向器(qi)(qi)表(biao)面不受磨损,...
电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)修(xiu)理的(de)(de)常见问题:1、电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)定(ding)子槽(cao)楔松(song)动(dong),端(duan)部绑(bang)扎不良(liang)故(gu)障电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)定(ding)子槽(cao)楔松(song)动(dong)、绕组端(duan)部绑(bang)扎不良(liang),当电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)在启动(dong)和(he)运行时产生振(zhen)动(dong),线圈(quan)相对产生位移,电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)电(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)声大,出现(xian)(xian)放电(dian)(dian)(dian)(dian)(dian)现(xian)(xian)象。2、电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)转子故(gu)障,电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)频繁启动(dong)和(he)过(guo)载运行时产生的(de)(de)热效应力、电(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)力和(he)机(ji)(ji)(ji)械离心(xin)力的(de)(de)作用引起交变应力而造成电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)鼠笼(long)转子的(de)(de)短路环与铜条(tiao)焊接处开焊,转子铜条(tiao)在槽(cao)内松(song)动(dong),运行中定(ding)子电(dian)(dian)(dian)(dian)(dian)流摆动(dong)大,电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)振(zhen)动(dong)剧烈,电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)电(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)声增(zeng)大并(bing)出现(xian)(xian)放电(dian)(dian)(dian)(dian)(dian)现(xian)(xian)象。3、电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)(ji)绝...
直(zhi)流电(dian)(dian)动机维修常见故(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)处(chu)理(li)方法一、换向(xiang)器故(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)原因 换向(xiang)器故(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)是(shi)直(zhi)流电(dian)(dian)动机突出的(de)(de)(de)故(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)之(zhi)一,换向(xiang)器部(bu)件产(chan)生故(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)的(de)(de)(de)概(gai)率比较(jiao)大而且对(dui)电(dian)(dian)动机的(de)(de)(de)影响较(jiao)大,特别是(shi)在牵(qian)引(yin)型的(de)(de)(de)电(dian)(dian)动机的(de)(de)(de)使用(yong)中,解(jie)决换向(xiang)器的(de)(de)(de)故(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)是(shi)一个急需(xu)解(jie)决的(de)(de)(de)问题(ti)。 根据直(zhi)流电(dian)(dian)动机的(de)(de)(de)工(gong)作原理(li)可知,换向(xiang)器的(de)(de)(de)工(gong)作在直(zhi)流电(dian)(dian)动机的(de)(de)(de)运行过(guo)程(cheng)中是(shi)一个较(jiao)为(wei)复杂的(de)(de)(de)多(duo)方面的(de)(de)(de)问题(ti),所以换向(xiang)器故(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)出现(xian)的(de)(de)(de)概(gai)率较(jiao)高。换向(xiang)器常会(hui)产(chan)生灼伤的(de)(de)(de)问题(ti),严重的(de)(de)(de)即(ji)使在用(yong)纱(sha)布沾汽(qi)油(you)后仍难(nan)以擦...
直(zhi)(zhi)(zhi)流(liu)电(dian)机(ji)维(wei)修(xiu)是(shi)我们日常生活当(dang)(dang)中很常见的(de)(de)一(yi)种机(ji)器,它(ta)被(bei)我们俗(su)称为(wei)叫(jiao)做马达(da)。由于日常生活当(dang)(dang)中长期使用发生的(de)(de)损坏(huai)以及人为(wei)操作的(de)(de)不当(dang)(dang),就(jiu)会(hui)导致(zhi)电(dian)机(ji)在使用的(de)(de)过程当(dang)(dang)中出现故(gu)障,这个时(shi)候(hou),需要(yao)进(jin)行的(de)(de)就(jiu)是(shi)直(zhi)(zhi)(zhi)流(liu)电(dian)机(ji)维(wei)修(xiu)。维(wei)修(xiu)往(wang)往(wang)需要(yao)有丰富的(de)(de)经验,但是(shi)技(ji)巧也是(shi)非常关键的(de)(de)。下面子昂机(ji)电(dian)说说几个在直(zhi)(zhi)(zhi)流(liu)电(dian)机(ji)维(wei)修(xiu)的(de)(de)时(shi)候(hou)的(de)(de)技(ji)巧。首先应该看一(yi)看如(ru)(ru)何排查(cha)故(gu)障,当(dang)(dang)电(dian)机(ji)出现问题(ti)的(de)(de)时(shi)候(hou),如(ru)(ru)果要(yao)进(jin)行直(zhi)(zhi)(zhi)流(liu)电(dian)机(ji)维(wei)修(xiu),那(nei)么首先应该进(jin)行故(gu)障的(de)(de)排查(cha)...
直流(liu)电(dian)机转子轴(zhou)(zhou)(zhou)磨(mo)损修理(li)方法大家(jia)在(zai)使用(yong)(yong)电(dian)机的(de)时(shi)候,直流(liu)电(dian)机轴(zhou)(zhou)(zhou)和轴(zhou)(zhou)(zhou)瓦(wa)(wa)特别容易(yi)出现磨(mo)损。电(dian)机轴(zhou)(zhou)(zhou)、轴(zhou)(zhou)(zhou)瓦(wa)(wa)磨(mo)损为企业电(dian)机常见故障,直流(liu)电(dian)机修理(li)通常按以下方法处理(li),希望(wang)能(neng)给大家(jia)带来用(yong)(yong)处。 (1)用(yong)(yong)车床(chuang)直接将(jiang)轴(zhou)(zhou)(zhou)磨(mo)损处外(wai)(wai)圈车去 0.2mm,再按照轴(zhou)(zhou)(zhou)颈(jing)直径加工轴(zhou)(zhou)(zhou)瓦(wa)(wa)、油封(feng)。此(ci)种方案需(xu)制作非标(biao)准(zhun)轴(zhou)(zhou)(zhou)瓦(wa)(wa)、油封(feng),成本较高,且与其它循环水电(dian)动(dong)机备件不统(tong)一。 (2)将(jiang)轴(zhou)(zhou)(zhou)清洗干净放在(zai)试验(yan)台上,用(yong)(yong)百分(fen)表(biao)检查轴(zhou)(zhou)(zhou)外(wai)(wai)圈各部的(de)磨(mo)损情况(kuang)当(dang)轴(zhou)(zhou)(zhou)的(de)外(wai)(wai)圈磨(mo)...
电动(dong)机(ji)(ji)(ji)使用(yong)中(zhong)定期检查(cha)(cha)项目(mu)电动(dong)机(ji)(ji)(ji)的(de)(de)清理.电动(dong)机(ji)(ji)(ji)在(zai)使用(yong)期内(nei),应(ying)注意它的(de)(de)清洁,特别是绕组(zu)的(de)(de)清洁。无论电动(dong)机(ji)(ji)(ji)的(de)(de)内(nei)部还是外部都(dou)不许弄脏,也不允(yun)许有水和油落(luo)入电动(dong)机(ji)(ji)(ji)内(nei)o(1)滚珠(zhu)轴(zhou)(zhou)承(cheng)(cheng)及滚校(xiao)轴(zhou)(zhou)承(cheng)(cheng)约工作2000h,即需更换润滑油一次。轴(zhou)(zhou)承(cheng)(cheng)用(yong)于多(duo)灰尘和潮湿环(huan)境中(zhong)时,应(ying)经(jing)常(chang)地更换润滑脂(zhi),油脂(zhi)牌号为ZL—3号锂基(ji)润滑脂(zhi)。在(zai)起动(dong)长期不用(yong)的(de)(de)电动(dong)机(ji)(ji)(ji)时,必须先(xian)检查(cha)(cha)滚珠(zhu)轴(zhou)(zhou)承(cheng)(cheng)及接(jie)柱轴(zhou)(zhou)承(cheng)(cheng)的(de)(de)润滑状态。倘(tang)若原来(lai)的(de)(de)润滑油已(yi)脏或已(yi)硬化,则必须将(jiang)轴(zhou)(zhou)承(cheng)(cheng)先(xian)用(yong)...
大型(xing)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)维修(xiu)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)因为(wei)长期连续(xu)不(bu)断使(shi)用(yong),再加上使(shi)用(yong)者(zhe)操作不(bu)当,会经(jing)常发生电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)故(gu)障,电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)维修(xiu)应该由专业的(de)人员负(fu)责,保障电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)运行(xing)良好。电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)维修(xiu)可(ke)以节(jie)约成本(ben)提高电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)利用(yong)率。大型(xing)电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)修(xiu)理(li)分(fen)类详(xiang)述(shu):同步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)还可(ke)分(fen)为(wei)永磁(ci)同步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)、磁(ci)阻同步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)和磁(ci)滞同步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)。异(yi)步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)可(ke)分(fen)为(wei)感应电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)和交(jiao)流换(huan)向器(qi)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)。感电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)又分(fen)为(wei)三相(xiang)异(yi)步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)、单相(xiang)异(yi)步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)和罩极异(yi)步(bu)(bu)(bu)(bu)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)等(deng)。交(jiao)流换(huan)向器(qi)电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)又分(fen)为(wei)单相(xiang)串励电(dian)(dian)(dian)(dian)(dian)动(dong)(dong)(dong)(dong)机(ji)(ji)、...
大型(xing)(xing)(xing)(xing)电(dian)(dian)机(ji)轴(zhou)承(cheng)(cheng)的选择电(dian)(dian)机(ji)轴(zhou)承(cheng)(cheng)的选择1、轴(zhou)承(cheng)(cheng)型(xing)(xing)(xing)(xing)号的选择:轴(zhou)承(cheng)(cheng)型(xing)(xing)(xing)(xing)号一般(ban)是(shi)由用户(hu)(hu)的技术人员(yuan)(yuan)根据配套产品(pin)的使用条(tiao)件及承(cheng)(cheng)受(shou)负荷(he)对轴(zhou)承(cheng)(cheng)进行选择。业(ye)务(wu)人员(yuan)(yuan)主要(yao)(yao)了解(jie)用户(hu)(hu)的实(shi)际(ji)负荷(he)是(shi)否与所(suo)选轴(zhou)承(cheng)(cheng)相符合,如果轴(zhou)承(cheng)(cheng)达不到使用要(yao)(yao)求,应尽快建(jian)议客户(hu)(hu)改选型(xing)(xing)(xing)(xing)号,但除非特殊(shu)产品(pin)在选择型(xing)(xing)(xing)(xing)号上一般(ban)不会(hui)有什么问题。轴(zhou)承(cheng)(cheng)游隙的选择:用户(hu)(hu)在购买(mai)轴(zhou)承(cheng)(cheng)时(shi)一般(ban)只(zhi)会(hui)告知(zhi)在什么型(xing)(xing)(xing)(xing)号、等(deng)级,很少会(hui)对轴(zhou)承(cheng)(cheng)的游隙提出要(yao)(yao)求,业(ye)务(wu)人员(yuan)(yuan)必须问清(qing)轴(zhou)承(cheng)(cheng)的使用条(tiao)件、其中...
直(zhi)流(liu)(liu)电(dian)(dian)机(ji)维(wei)修(xiu)电(dian)(dian)刷火花过大现(xian)象(xiang):直(zhi)流(liu)(liu)电(dian)(dian)机(ji)维(wei)修(xiu)具(ju)有良好的调(diao)速性能,较大的起动(dong)转矩(ju)和过载(zai)能力等许多(duo)优点(dian),因而在煤矿电(dian)(dian)力机(ji)械中应(ying)用仍很广泛。1.直(zhi)流(liu)(liu)电(dian)(dian)机(ji)维(wei)修(xiu)长(zhang)期超负(fu)载(zai):调(diao)整负(fu)载(zai),在额定负(fu)载(zai)内。换向(xiang)极线(xian)圈(quan)短路:重新绕(rao)制线(xian)圈(quan)。2.电(dian)(dian)枢(shu)绕(rao)组断(duan)(duan)路:拆开电(dian)(dian)机(ji),检查电(dian)(dian)枢(shu)绕(rao)组,用毫伏(fu)表找出断(duan)(duan)路处,若不能焊接将重绕(rao)。电(dian)(dian)枢(shu)绕(rao)组短路或换向(xiang)器(qi)断(duan)(duan)路:电(dian)(dian)机(ji)运转时(shi),换向(xiang)器(qi)刷握下冒火,电(dian)(dian)枢(shu)发(fa)热,应(ying)检查云母槽中有无铜屑(xie),或用毫伏(fu)表测换向(xiang)片间(jian)电(dian)(dian)压降,检查...
直流电机(ji)维修(xiu)绕(rao)(rao)组接(jie)(jie)(jie)处(chu)理方(fang)(fang)法:电机(ji)维修(xiu)绕(rao)(rao)组接(jie)(jie)(jie)错绕(rao)(rao)组接(jie)(jie)(jie)错造成不(bu)(bu)(bu)(bu)完整的旋转(zhuan)磁场(chang),致(zhi)使(shi)启动(dong)困难、三(san)相(xiang)电流不(bu)(bu)(bu)(bu)平衡、噪声大等症状,严重时(shi)若不(bu)(bu)(bu)(bu)及(ji)时(shi)处(chu)理会烧坏绕(rao)(rao)组。 滚(gun)珠法。 如(ru)(ru)滚(gun)珠沿定子内(nei)圆周(zhou)表面(mian)旋转(zhuan)滚(gun)动(dong),说明(ming)正确,否则(ze)绕(rao)(rao)组有接(jie)(jie)(jie)错现象。 指南针法。如(ru)(ru)果绕(rao)(rao)组没有接(jie)(jie)(jie)错,则(ze)在一相(xiang)绕(rao)(rao)组中,指南针经(jing)过相(xiang)邻的极(ji)(相(xiang))组时(shi),所指的极(ji)性应(ying)相(xiang)反,在三(san)相(xiang)绕(rao)(rao)组中相(xiang)邻的不(bu)(bu)(bu)(bu)同(tong)相(xiang)的极(ji)(相(xiang))组也相(xiang)反;如(ru)(ru)极(ji)性方(fang)(fang)向不(bu)(bu)(bu)(bu)变(bian)时(shi),说明(ming)有一极(ji)(相(xiang))组反接(jie)(jie)(jie);若...