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  振動(dong)篩現(xian)強烈震動(dong)的解決方法(fa)
振(zhen)(zhen)動(dong)(dong)篩(shai)軸在長時間使用之后，可能會出(chu)現(xian)(xian)斷裂、啟(qi)動(dong)(dong)失敗或啟(qi)動(dong)(dong)時跑偏、不(bu)平等現(xian)(xian)象，同(tong)樣也會出(chu)現(xian)(xian)振(zhen)(zhen)動(dong)(dong)力過強，導致振(zhen)(zhen)動(dong)(dong)篩(shai)出(chu)現(xian)(xian)強烈震動(dong)(dong)，一(yi)旦出(chu)現(xian)(xian)這種(zhong)情況，不(bu)但(dan)會影(ying)響振(zhen)(zhen)動(dong)(dong)篩(shai)的正常(chang)使用還(huan)會導致振(zhen)(zhen)動(dong)(dong)篩(shai)損壞，那么振(zhen)(zhen)動(dong)(dong)篩(shai)出(chu)現(xian)(xian)強烈震動(dong)(dong)怎么解決(jue)呢?
1.電機(ji)軸承(cheng)摩擦性較大
振動(dong)篩(shai)上的振動(dong)電機軸承因為承受較(jiao)大的激振力會(hui)(hui)引起彈性(xing)振動(dong)，如果軸承因為潤(run)滑脂(zhi)缺(que)少或質量不佳(jia)就會(hui)(hui)產生較(jiao)大的摩擦性(xing)，使電機軸承在使用中溫度(du)過(guo)高膨脹造成(cheng)徑向游(you)隙減小引發篩(shai)機強(qiang)烈震動(dong)。
解決方法：需要定期檢查(cha)振動電機(ji)軸承潤(run)滑脂是否缺失(shi)并使用潤(run)滑脂。
2.振動電機(ji)激振力過大
振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)篩(shai)上(shang)的振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)電機如果激振(zhen)(zhen)(zhen)力(li)過大會使篩(shai)機產生強烈(lie)的慣性力(li)引(yin)起電機軸(zhou)承(cheng)的反(fan)動(dong)(dong)(dong)(dong)力(li)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)，會破(po)壞(huai)軸(zhou)承(cheng)平穩的工(gong)作狀態從(cong)而產生高頻(pin)(pin)率(lv)震動(dong)(dong)(dong)(dong)，如果振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)電機軸(zhou)承(cheng)的振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)頻(pin)(pin)率(lv)和篩(shai)機上(shang)的彈性振(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)的頻(pin)(pin)率(lv)相同時，就會引(yin)起篩(shai)機共振(zhen)(zhen)(zhen)現象導(dao)致強烈(lie)震動(dong)(dong)(dong)(dong)的發(fa)生。
解決(jue)方法：調整振(zhen)動(dong)電機兩端的偏心塊夾角(jiao)改變激振(zhen)力(li)(li)的大(da)小(xiao)，夾角(jiao)小(xiao)，激振(zhen)力(li)(li)變大(da)，振(zhen)幅變大(da)。夾角(jiao)變大(da)，激振(zhen)力(li)(li)變小(xiao)，振(zhen)幅變小(xiao)。
3.軸(zhou)承與軸(zhou)承座孔選擇不當
振(zhen)(zhen)動(dong)(dong)(dong)篩(shai)振(zhen)(zhen)動(dong)(dong)(dong)電(dian)機軸(zhou)承與軸(zhou)承座孔選(xuan)擇不(bu)當也(ye)會(hui)造成篩(shai)機出現強烈震(zhen)動(dong)(dong)(dong)，若選(xuan)擇的(de)軸(zhou)承座孔過小，會(hui)使軸(zhou)承滾道形狀(zhuang)產生變(bian)形，使篩(shai)機運轉(zhuan)時產生異常震(zhen)動(dong)(dong)(dong)。
解決(jue)方法：軸(zhou)承座孔(kong)要選(xuan)擇合適的大小，可在軸(zhou)承座內放置橡膠減震(zhen)環(huan)從(cong)而震(zhen)動。
4.軸承(cheng)徑向游隙(xi)變小或變大
振動(dong)(dong)篩(shai)上(shang)的(de)振動(dong)(dong)電(dian)機(ji)(ji)軸(zhou)承(cheng)徑向游隙變小會(hui)使軸(zhou)承(cheng)過磨和升(sheng)溫產(chan)生高頻振動(dong)(dong)從而引(yin)發(fa)篩(shai)機(ji)(ji)強烈震動(dong)(dong)，過大會(hui)降低軸(zhou)承(cheng)徑向固(gu)有的(de)頻率(lv)(lv)易產(chan)生共振引(yin)起低頻率(lv)(lv)震動(dong)(dong)。
解決(jue)方法：振動(dong)電機軸(zhou)承徑向游隙要適當調整，不能(neng)過(guo)(guo)小或過(guo)(guo)大。可以將(jiang)軸(zhou)承外圈進行磨削以達到合適的間隙。
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