振(zhen)(zhen)(zhen)動(dong)(dong)篩是利用振(zhen)(zhen)(zhen)子(zi)激(ji)振(zhen)(zhen)(zhen)所產(chan)(chan)生的(de)(de)(de)往復旋(xuan)(xuan)(xuan)(xuan)型振(zhen)(zhen)(zhen)動(dong)(dong)而(er)工作的(de)(de)(de)。振(zhen)(zhen)(zhen)子(zi)的(de)(de)(de)上(shang)旋(xuan)(xuan)(xuan)(xuan)轉(zhuan)(zhuan)重(zhong)(zhong)(zhong)錘(chui)使(shi)篩面(mian)(mian)產(chan)(chan)生平面(mian)(mian)回(hui)旋(xuan)(xuan)(xuan)(xuan)振(zhen)(zhen)(zhen)動(dong)(dong)，而(er)下旋(xuan)(xuan)(xuan)(xuan)轉(zhuan)(zhuan)重(zhong)(zhong)(zhong)錘(chui)則(ze)(ze)使(shi)篩面(mian)(mian)產(chan)(chan)生錐面(mian)(mian)回(hui)轉(zhuan)(zhuan)振(zhen)(zhen)(zhen)動(dong)(dong)，其(qi)聯合作用的(de)(de)(de)效(xiao)果則(ze)(ze)使(shi)篩面(mian)(mian)產(chan)(chan)生復旋(xuan)(xuan)(xuan)(xuan)型振(zhen)(zhen)(zhen)動(dong)(dong)。其(qi)振(zhen)(zhen)(zhen)動(dong)(dong)軌跡(ji)(ji)是一復雜的(de)(de)(de)空(kong)(kong)間曲(qu)線。該(gai)曲(qu)線在水平面(mian)(mian)投影為一圓形(xing)，而(er)在垂直(zhi)面(mian)(mian)上(shang)的(de)(de)(de)投影為一橢圓形(xing)。調節上(shang)、下旋(xuan)(xuan)(xuan)(xuan)轉(zhuan)(zhuan)重(zhong)(zhong)(zhong)錘(chui)的(de)(de)(de)激(ji)振(zhen)(zhen)(zhen)力，可以改變振(zhen)(zhen)(zhen)幅。而(er)調節上(shang)、下重(zhong)(zhong)(zhong)錘(chui)的(de)(de)(de)空(kong)(kong)間相位角，則(ze)(ze)可以改變篩面(mian)(mian)運動(dong)(dong)軌跡(ji)(ji)的(de)(de)(de)曲(qu)線形(xing)狀并(bing)改變篩面(mian)(mian)上(shang)物(wu)料(liao)的(de)(de)(de)運動(dong)(dong)軌跡(ji)(ji)。

結構組成：

振(zhen)動篩(shai)一般(ban)由振(zhen)動器、篩(shai)箱、支承或懸(xuan)掛裝置、傳動裝置等部分組成。

振動器

單軸振動篩(shai)和雙(shuang)軸振動篩(shai)的(de)振動器，按偏(pian)心重(zhong)配置方式區分一(yi)般有兩(liang)種(zhong)

型(xing)式。偏(pian)心(xin)重(zhong)的配置方(fang)式以(yi)塊偏(pian)心(xin)型(xing)式較(jiao)好。

篩箱

篩箱由篩框、篩面及其壓(ya)緊裝(zhuang)置(zhi)組(zu)成(cheng)。篩框是由側板和橫梁(liang)構(gou)成(cheng)。篩框必須要有足夠的剛性(xing)。

支承裝置

振動篩的支(zhi)承裝(zhuang)置(zhi)有吊式和座(zuo)式兩(liang)種。座(zuo)式安裝(zhuang)較為(wei)簡(jian)單，且安裝(zhuang)高度低，一般應優先(xian)選用。振動篩的支(zhi)承裝(zhuang)置(zhi)主(zhu)要由彈(dan)性元件組成(cheng)，常用的有螺旋彈(dan)簧、板彈(dan)簧和橡膠(jiao)彈(dan)簧。

傳動裝置

振動篩(shai)通常采用三角帶傳動裝置，振動篩(shai)的(de)結(jie)構簡單，可(ke)以(yi)任意選擇振動器的(de)轉數，但(dan)運轉時(shi)皮帶容易打滑，可(ke)能導致篩(shai)孔(kong)堵塞。振動篩(shai)也有采用聯軸器直接驅動的(de)。聯軸器可(ke)以(yi)保持振動器的(de)穩定轉數，而(er)且使用壽命很長(chang)，但(dan)振動器的(de)轉數調整困(kun)難。

工(gong)作原理：

將顆(ke)(ke)粒(li)(li)(li)(li)大(da)小(xiao)不同的(de)(de)(de)(de)碎(sui)散(san)(san)物料群,多次(ci)通過(guo)(guo)(guo)均勻布(bu)孔(kong)的(de)(de)(de)(de)單層(ceng)(ceng)(ceng)或多層(ceng)(ceng)(ceng)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian),分(fen)(fen)(fen)成(cheng)(cheng)若干不同級別(bie)的(de)(de)(de)(de)過(guo)(guo)(guo)程(cheng)(cheng)成(cheng)(cheng)為(wei)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)(fen)。大(da)于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)的(de)(de)(de)(de)顆(ke)(ke)粒(li)(li)(li)(li)留(liu)在(zai)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)上(shang)(shang),稱為(wei)該(gai)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)(de)(de)(de)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)上(shang)(shang)物,小(xiao)于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)的(de)(de)(de)(de)顆(ke)(ke)粒(li)(li)(li)(li)透(tou)過(guo)(guo)(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong),稱為(wei)該(gai)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)(de)(de)(de)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)下(xia)物。實(shi)(shi)際的(de)(de)(de)(de)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)(fen)過(guo)(guo)(guo)程(cheng)(cheng)是：大(da)量(liang)粒(li)(li)(li)(li)度(du)大(da)小(xiao)不同、粗細(xi)(xi)混雜的(de)(de)(de)(de)碎(sui)散(san)(san)物料進入篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)后,只有一(yi)部(bu)(bu)分(fen)(fen)(fen)顆(ke)(ke)粒(li)(li)(li)(li)與篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)接觸(chu),由(you)(you)于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)箱的(de)(de)(de)(de)振動,篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)上(shang)(shang)物料層(ceng)(ceng)(ceng)被松散(san)(san),使大(da)顆(ke)(ke)粒(li)(li)(li)(li)本來就(jiu)存在(zai)的(de)(de)(de)(de)間(jian)(jian)隙(xi)(xi)被進一(yi)步(bu)擴大(da),小(xiao)顆(ke)(ke)粒(li)(li)(li)(li)乘機(ji)穿(chuan)過(guo)(guo)(guo)間(jian)(jian)隙(xi)(xi),轉(zhuan)移到下(xia)層(ceng)(ceng)(ceng)或運輸機(ji)上(shang)(shang)。由(you)(you)于(yu)小(xiao)顆(ke)(ke)粒(li)(li)(li)(li)間(jian)(jian)隙(xi)(xi)小(xiao),大(da)顆(ke)(ke)粒(li)(li)(li)(li)并不能(neng)穿(chuan)過(guo)(guo)(guo)，于(yu)是原來雜亂無章排列的(de)(de)(de)(de)顆(ke)(ke)粒(li)(li)(li)(li)群發生了分(fen)(fen)(fen)離(li),即按顆(ke)(ke)粒(li)(li)(li)(li)大(da)小(xiao)進行(xing)了分(fen)(fen)(fen)層(ceng)(ceng)(ceng),形成(cheng)(cheng)了小(xiao)顆(ke)(ke)粒(li)(li)(li)(li)在(zai)下(xia),粗顆(ke)(ke)粒(li)(li)(li)(li)居(ju)上(shang)(shang)的(de)(de)(de)(de)排列規則。到達篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)的(de)(de)(de)(de)細(xi)(xi)顆(ke)(ke)粒(li)(li)(li)(li),小(xiao)于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)者透(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai),最終實(shi)(shi)現了粗、細(xi)(xi)粒(li)(li)(li)(li)分(fen)(fen)(fen)離(li),完成(cheng)(cheng)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)(fen)過(guo)(guo)(guo)程(cheng)(cheng)。然(ran)而，充分(fen)(fen)(fen)的(de)(de)(de)(de)分(fen)(fen)(fen)離(li)是沒有的(de)(de)(de)(de)，在(zai)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)分(fen)(fen)(fen)時，一(yi)般都有一(yi)部(bu)(bu)分(fen)(fen)(fen)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)下(xia)物留(liu)在(zai)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)上(shang)(shang)物中。細(xi)(xi)粒(li)(li)(li)(li)透(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)時，雖然(ran)顆(ke)(ke)粒(li)(li)(li)(li)都小(xiao)于(yu)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)，但(dan)它們(men)透(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)的(de)(de)(de)(de)難易(yi)程(cheng)(cheng)度(du)不同，物料和(he)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)孔(kong)尺寸相近的(de)(de)(de)(de)顆(ke)(ke)粒(li)(li)(li)(li)，透(tou)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)就(jiu)較難，透(tou)過(guo)(guo)(guo)篩(shai)(shai)(shai)(shai)(shai)(shai)(shai)(shai)面(mian)(mian)下(xia)層(ceng)(ceng)(ceng)的(de)(de)(de)(de)顆(ke)(ke)粒(li)(li)(li)(li)間(jian)(jian)隙(xi)(xi)就(jiu)更(geng)難。

應(ying)用范圍：

振動篩的適用范圍十(shi)分廣泛(fan)，幾乎(hu)涉及到生活中的方方面面在加工和制造時都需(xu)要用到各種(zhong)類型的振動篩。

振動篩主要用于礦山、煤炭、冶(ye)煉、建材(cai)、耐(nai)火材(cai)料、輕(qing)工、化工、醫藥、食(shi)品(pin)等行業(ye)。 

振動(dong)篩(shai)在選礦廠應(ying)用最(zui)多，按其傳(chuan)動(dong)機構的不同，又(you)可以分為以下幾(ji)種：偏(pian)心振動(dong)篩(shai)、慣性(xing)振動(dong)篩(shai)、自(zi)定中心振動(dong)篩(shai)、共振篩(shai)。