振動電機常見的故障原因及維修方法
[ 時間:2012-03-13 閱讀:1195次 ]

一:巨(ju)型(xing)震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)在應用中(zhong)的(de)(de)(de)普遍(bian)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)人們大(da)概都看出,震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)是(shi)鑒于震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)是(shi)在馬達轉子軸(zhou)兩端(duan)各相連一組(zu)(zu)組(zu)(zu)可變(bian)扁(bian)心(xin)距塊,借助軸(zhou)及(ji)扁(bian)心(xin)距塊高速公(gong)路扭(niu)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)生產的(de)(de)(de)離心(xin)法力(li)擁(yong)有(you)激振(zhen)力(li)。那(nei)末(mo),直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)越大(da),激振(zhen)力(li)就(jiu)越大(da),對自我的(de)(de)(de)震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)危害就(jiu)越強。巨(ju)型(xing)震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji),尋常地腳螺(luo)栓逐漸無(wu)(wu)(wu)(wu)(wu)發徹底刪(shan)除(chu)文件(jian)的(de)(de)(de)不(bu)變(bian)震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)有(you)幾個區域(yu)的(de)(de)(de)相連,且草率泛(fan)著(zhu)脫絲干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)。生產不(bu)平(ping)衡震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)。巨(ju)型(xing)震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)最(zui)注意的(de)(de)(de)以6級直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)作為(wei)(wei)主導,中(zhong)幀率,高幅(fu)值(zhi)。高頻(pin)率震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)最(zui)注意的(de)(de)(de)以成長(chang)型(xing)型(xing)震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)作為(wei)(wei)主導,這些應用加工廠在取舍直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)的(de)(de)(de)之(zhi)時 ,假(jia)使要求幀率非常快的(de)(de)(de)巨(ju)型(xing)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji),意見多吊用多臺中(zhong)形直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)進一步震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)力(li)。二:震(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)干(gan)(gan)(gan)涉(she)(she)(she)(she)現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)(xiang)(xiang)(xiang)(xiang)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)無(wu)(wu)(wu)(wu)(wu)刷(shua)(shua)交(jiao)(jiao)(jiao)(jiao)(jiao)(jiao)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)電(dian)(dian)動(dong)(dong)(dong)(dong)(dong)(dong)(dong)機(ji)(ji)普遍(bian)常見問(wen)題分析(xi)處里方(fang)案

  1、開機后,電機不啟動,應檢查:1)電源是否缺相;2)電機是否斷相;3)防護罩是否損壞并磨擦偏心塊;
    2、開機后,電機噪音大、發熱等,應檢查:1)振動機械與電機地腳接觸面的粗糙度是否符合安裝要求;2)地腳螺旋拴是否上緊;3)主機振動加速度是否符合使用要求;
    3、調整偏心塊后,振幅變化異常,應檢查: 轉軸兩端偏心塊是否對稱調節;
    4、在兩臺振動電機同時工作的振動設備中,當其轉相不符合要求時,一定要單臺調其相序,不要調兩臺振動電機總電源的相序。

  三:振動(dong)式電動(dong)機(ji)頻(pin)頻(pin)斷路器跳閘的這些情況

1.振動電機空氣開關,過電流保護器容量不符或老化。
2.振動電機的出線電纜破皮。
3.振動電機的磁回路性能下降,造成電流過大。
4.軸承損壞或者缺油卡澀,產生過負荷跳閘。
5.振動電機電源有問題或者是斷路器老化。維修常識:維護和檢修振動電機方法    介紹一、運行中的維護事項:振動電機大都安裝在工作環境惡劣、粉塵大的地方,電機本身又無風扇散熱,全靠自然冷卻,在使用中除了與普通電機一樣維護外,還有注意維護一下內容。
(一)、檢查內容:
     1、經常檢查電機表面衛生
     2、有粉塵影響散熱時及時清理
     3、經常檢查電機地腳固定螺栓是否松動
     4、松動時用力矩扳手緊固至要求力矩
     5、檢查振動是否異常
(二)、處理方法:
     1、振動異常時停機,拆開偏心塊護罩檢查處理
     2、偏心塊防護罩密封是否嚴
     3、密封不嚴時停機處理
     4、電機出線電纜是否磨損
     5、若磨損,停機處理
     6、軸承是否缺油
     7、運行中每2個月用黃油槍補一次油,一年中修一次
     8、電機電流是否正常
     9、異常時停機檢查處理二、
檢修事項:
     1、振動電機的出線電纜承受振動,所以要選用彈性較大的電纜作電機引線,一般電機引線在電機出線根部容易振斷或磨破損傷,當出現此類故障時要打開電機,從電機內部重新接線。
     2、振動電機的軸承要選用重型軸承,均可承載一定的軸向負荷,不論安裝方向如何,軸承壽命不受軸向負荷的影響。
     3、拆卸軸承時要記錄好偏心塊的位置及激振力的百分值,更換完軸承后檢查電機的轉軸應有一定的軸向串動,先不裝偏心塊空試電機,運行正常后按原記錄復位好偏心塊。
     4、偏心塊的防護罩要密封好,防止粉塵進入內部,影響電機運行。總之,振動電機對設備具有一定的破壞性,同時振動電機也是易損設備,使用不正確時不僅電機本身壽命縮短,對所拖動的機械設備也造成極大的破壞,所以在使用振動電機時一定要嚴格按照振動電機的使用說明進行使用,增加巡檢次數及力度,發現事故隱患后及時處理,萬萬不能帶病維持運行。合理的使用,勤快認真的巡檢才能更好的發揮振動電機的作用,才能延長振動電機的使用壽命。振動電機激振力過小的調整方法振動電機的激振力過小是很多振動機用戶經常遇到的問題,如何解決這個問題呢。其實振動電機出廠時激振力均調至80%,需海運時(出口)激振力調至0%。
使用時可按下列步驟進行調節:
     1、臥式振動電機:(1)、放松防護罩緊固螺釘,拆下兩端防護罩;(2)、激振力小于MV50-2,MV50-4,MV50-6,MV30-8的振動電機(不包含此四種規格),外偏心塊為可調塊,表面裝有標明***大激振力百分數的標尺,內偏心塊為固定塊,均使用緊固螺栓壓緊在電機轉軸上。轉軸兩端面上刻有基準線。旋松兩側外偏心塊壓緊螺栓,兩側外偏心塊同向轉動,使軸上刻線對準外偏心塊上的激振力標尺刻線,調至所需激振力,擰緊外偏心塊壓緊螺栓,裝上防護罩;(3)激振力大于或等于MV50-2,MV50-4,MV50-6,MV30-8的振動電機(包含此四種規格),外偏心塊為固定塊,用鍵固定在轉軸上,不能轉動。內偏心塊為可調塊,外表面裝有標明***大激振力百分數的標尺,使用緊固螺栓壓緊在電機轉軸上。旋松兩側內偏心塊壓緊螺栓,兩側內偏心塊同向轉動,使內偏心塊上的激振力標尺刻線對準外偏心塊上的開縫,調至所需激振力,擰緊內偏心塊壓緊螺栓,裝上防護罩;注意:除特殊應用情況外,振動電機轉軸兩端偏心塊的位置必須相對應,兩端偏心塊百分數的設定必須相等,否則振動電機會產生巨大的錯向激振力,損傷電機的振動機械。
     2、立式振動電機:(1)激振力的調節:卸下附加塊壓緊螺栓,通過增減附加塊的數量來調節激振力;(2)上、下偏心塊夾角的調節:上偏心塊為固定塊,下偏心塊為可調塊,均使用緊固螺栓壓緊在電機轉軸上。轉軸兩端面上刻有基準線,下偏心塊外表面裝有標明旋轉角度的標尺,旋***偏心塊壓緊螺栓,轉動下偏心塊,使下偏心塊上的角度標尺刻線對準轉軸基準刻線,調至所需角度,擰緊下偏心塊壓緊螺栓;如需調節上偏心塊角度,也可按相應方法調節。
     3.連接電源振動電機的出電纜由于要承受振動,所以應選用重型四芯電纜,在靠近電纜出口處不允許突然彎曲,要有一個大于電纜外徑8-9倍的彎曲半徑,再將電纜固定到靜止不動的機器或框架上。其距離大約為0.6米到0.9米。在固定電纜的卡子處應墊有柔軟的絕緣材料,以免磨擦損傷電纜。四芯電纜的接地線,一端與接線盒內的接地螺釘相連接,另一端必須可靠接地。小型號振動電機,機殼上沒有接線盒,使用重型三芯電纜直接從電機內部接線。在電機的底腳附近裝有接地螺釘,使用時必須可靠接地。
注意:
     振動電機出線電纜為易損件,常因振動磨擦損傷,導致電機缺相運行,損壞電機。用戶應經常檢查電纜狀況,如有磨損應及時更換同型號電纜。盡量做到每3個月加一次潤滑油,如果使用時間過長(酌情添加)振動電機保養的重要性振動電機目前已普遍用于振動機械,也就是振動電機的用途覆蓋了礦山,化工,制藥等若干上百個行業,在各種行業中振動電機工作的環境都不盡相同,這樣對于振動電機的日常保養也都不盡相同。所以要經常觀察振動電機靜態和動態狀態下的情況,發現問題及時解決,避免不必要的損壞,從而造成影響工作和不必要的浪費。靜態觀察,在設備每次運行前都要用小垂頭敲擊振動電機的地腳螺絲是否有松動,通過目測和和挺起敲擊聲來進行判斷,如有松動會造成振動電機在工作時受反力不均勻,很容易造成電機撕裂和燒毀。動態觀察,是在振動電機運行過程中來聽其運行的聲音。如果聲音出現異常聲需及時停機檢查。要按照說明書上的要求進行加油,振動電機的軸承潤滑油太多,太少都不利于振動電機的正常運行,例外要經常觀察振動電機在不同環境中工作時的溫升狀況,溫升太高也說明振動電機不正常,不及時檢修也會造成電機過快損壞。
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