低速電機現場動平衡
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詳細信息 現場動平衡是低速電機製造、安裝調試中的一個二藝過程。低速電機轉子A,Bliangchuanzhuanglianggewoliuchuanganqi，feijiechuceliangzhuanzizhendongweiyi，zaizhuanzhoushangmougequedingdeweizhizuoyibiaoji，tieshangyibopianjinshuzhaidai。lingzaigudingpingmianshangxuanyiquedingweizhiweilingdu，meidangzhouzhuandong，zhoushangdelingduyugudingpingmianshangdelingduzhongheshichanshengyigexinhao，zuoweixiangweixinhaodebiaoji，zaidisudianjixiaozhengpingmianshangshidangweizhishijia(減去)一定的平衡重量，改變轉子的質量分布，以測量低速電機轉子基頻振動幅值和相位角作為操作原始依據，測量試加(減去)平ping衡heng重zhong量liang前qian後hou轉zhuan子zi振zhen動dong幅fu值zhi和he相xiang位wei的de變bian化hua，通tong過guo計ji算suan機ji自zi動dong采cai集ji轉zhuan子zi振zhen動dong位wei移yi信xin號hao和he相xiang位wei標biao記ji信xin號hao的de基ji頻pin檢jian測ce，快kuai速su地di計ji算suan質zhi量liang大da小xiao與yu安an裝zhuang角jiao，使shi轉zhuan子zi原yuan始shi不bu平ping衡heng重zhong量liang產chan生sheng的de離li心xin力li和he試shi加jia的de平ping衡heng重zhong量liang產chan生sheng的de離li心xin力li構gou成cheng慣guan性xing力li係xi相xiang互hu平ping衡heng。從cong總zong體ti上shang盡jin量liang減jian少shao轉zhuan子zi不bu平ping衡heng，從cong而er減jian少shao轉zhuan子zi撓nao曲qu，減jian少shao機ji組zu振zhen動dong和he軸zhou承cheng的de動dong反fan力li，消xiao除chu或huo降jiang低di轉zhuan子zi質zhi量liang不bu平ping衡heng引yin起qi的de低di速su電dian機ji振zhen動dong。推tui進jin低di速su電dian機ji現xian工gong作zuo轉zhuan速su65轉/分，通過振動頻譜分析，識別主要振動頻率1Hz,2Hz時振動值最大。低速電機振動的主要原因是由於轉子偏心質量引起的基頻振動和轉子不對中引起的2倍頻振動。通過兩次現場動平衡，A麵振動下降(從6.9“m-F降到5.7um)B麵振動明顯下降(從29.9協m下降到22.4um)。超低速大型低速電機現場動平衡的實踐說明:計(ji)算(suan)機(ji)技(ji)術(shu)和(he)虛(xu)擬(ni)儀(yi)器(qi)先(xian)進(jin)技(ji)術(shu)應(ying)用(yong)，使(shi)現(xian)場(chang)動(dong)平(ping)衡(heng)技(ji)術(shu)有(you)了(le)更(geng)高(gao)的(de)技(ji)術(shu)創(chuang)新(xin)和(he)發(fa)展(zhan)，計(ji)算(suan)機(ji)虛(xu)擬(ni)儀(yi)器(qi)技(ji)術(shu)突(tu)破(po)了(le)傳(chuan)統(tong)儀(yi)器(qi)頻(pin)率(lv)響(xiang)應(ying)特(te)性(xing)、幅頻特性、相頻特性的影響，以及在數據采集、數據處理、數shu據ju顯xian示shi等deng方fang麵mian限xian製zhi，攻gong克ke了le超chao低di基ji頻pin振zhen動dong幅fu值zhi和he相xiang位wei檢jian測ce和he現xian場chang動dong平ping衡heng技ji術shu難nan關guan。它ta是shi一yi種zhong先xian進jin的de測ce試shi方fang法fa，填tian補bu了le國guo內nei空kong白bai，可ke推tui廣guang應ying用yong到dao低di速su旋xuan轉zhuan艦jian船chuan低di速su電dian機ji和he其qi他ta旋xuan轉zhuan機ji械xie的de現xian場chang動dong平ping衡heng。www.sdncwl.net
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