壓電振動盤和電磁振動盤的區別

1、電(dian)磁(ci)式振動(dong)盤是由一個(ge)電(dian)磁(ci)振動(dong)器(電(dian)磁(ci)吸鐵和(he)銜鐵的總稱)作(zuo)動(dong)力，將電(dian)能(neng)轉(zhuan)換為機械振動(dong)能(neng)，料斗(dou)(dou)下面有個(ge)脈沖電(dian)磁(ci)鐵，可(ke)以使料斗(dou)(dou)垂直(zhi)方向振動(dong)，由于(yu)多組(3組及(ji)以上)彈(dan)簧片的傾(qing)斜(xie)，使料斗(dou)(dou)繞其垂直(zhi)軸做(zuo)扭擺振動(dong)。料斗(dou)(dou)內(nei)零件，由于(yu)受(shou)到(dao)這種振動(dong)，而(er)沿螺旋(xuan)軌道上升，直(zhi)到(dao)送到(dao)出料口。

2、壓(ya)(ya)電(dian)(dian)式振(zhen)動(dong)(dong)(dong)盤是利用壓(ya)(ya)電(dian)(dian)陶瓷作為(wei)驅動(dong)(dong)(dong)源的新型振(zhen)動(dong)(dong)(dong)送(song)(song)料裝(zhuang)(zhuang)置(zhi)，它(ta)利用壓(ya)(ya)電(dian)(dian)片的逆壓(ya)(ya)電(dian)(dian)效應(ying)產生(sheng)振(zhen)動(dong)(dong)(dong)，作為(wei)驅動(dong)(dong)(dong)源驅動(dong)(dong)(dong)料槽實(shi)現物料的輸送(song)(song)。它(ta)具有許多傳統振(zhen)動(dong)(dong)(dong)送(song)(song)料裝(zhuang)(zhuang)置(zhi)所不具備的特(te)點:

(1)結構簡單，安裝和維護更加方便;

(2)應(ying)用(yong)壓電(dian)(dian)片(pian)作(zuo)為驅動源，無需電(dian)(dian)機(ji)、電(dian)(dian)磁激振(zhen)器等(deng)驅動裝(zhuang)置，也無需軸(zhou)、桿、皮帶(dai)等(deng)機(ji)械傳動部(bu)件，結構簡單，易于加工制(zhi)作(zuo);

(3)改變驅動信號中的幅值(zhi)、脈寬及(ji)頻率中的任意一個，都可以調節輸(shu)送率，控(kong)制參數多，可控(kong)性好; 

(4)無(wu)轉動(dong)慣性，幾乎沒有加(jia)速(su)和減速(su)過程，啟(qi)動(dong)、停止迅速(su)，反應(ying)性能快(kuai);

(5)不產生干(gan)擾(rao)電磁(ci)場，也不受電磁(ci)干(gan)擾(rao)信號(hao)的影響;

(6)在低(di)頻率段或(huo)超聲段工(gong)作，噪音小;

(7)在共振(zhen)或無(wu)共振(zhen)狀態下(xia)工(gong)作，因(yin)此能量消耗少;

(8)驅動力略顯不(bu)足，無法(fa)輸送過重之料(liao)件，因此這類裝置大多應用于物(wu)料(liao)的微量(liang)或精(jing)量(liang)輸送。