我國對能源的利用與發達國家相比還有很大差距,特別是很多企業對能源的消耗很大,例如某些企業的主要產品單位能耗甚至超過國外的40%左右,節能空間還是很大。我國電動機消耗的電量約占全國用電量的60%,而中小型電動機占全國電動機功率的75%,若把中小型電動機的效率平均提高一個百分點,一年可節電20多億kw/h。中小型電動機出口量每年約為700萬kw,占交流電動機總產量的20%,是我國重要的出口機電產品之一。
目前隨著工業發展對礦產和能源的需求加大,礦產行業得到了大量的發展,但很多老的和小的礦產單位的振動篩選設備老化,目前大量采用的是老一代普通電機連桿式振動源,能耗高而且噪音大,如果都改用新式的振動電機,則會大量的節省電能,至少節省60%以上,噪音也大幅度降低。
振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)是(shi)在(zai)(zai)轉子軸兩端各安裝(zhuang)一(yi)(yi)(yi)(yi)組可(ke)(ke)調(diao)偏(pian)(pian)心(xin)塊(kuai),利(li)用(yong)軸及偏(pian)(pian)心(xin)塊(kuai)高速(su)(su)旋轉產(chan)生的(de)(de)(de)離(li)心(xin)力(li)得到(dao)激振(zhen)(zhen)(zhen)力(li)。振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)激振(zhen)(zhen)(zhen)力(li)利(li)用(yong)率高、能耗小(xiao)、噪音(yin)低、壽(shou)命長。可(ke)(ke)用(yong)于(yu)(yu)各種料(liao)倉、料(liao)斗、溜槽的(de)(de)(de)倉壁振(zhen)(zhen)(zhen)動(dong)(dong)(dong),以防止物料(liao)滯留,促使(shi)物料(liao)快速(su)(su)運動(dong)(dong)(dong),也是(shi)自(zi)同步直線振(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩、振(zhen)(zhen)(zhen)動(dong)(dong)(dong)給料(liao)機(ji)(ji)(ji)、振(zhen)(zhen)(zhen)動(dong)(dong)(dong)給料(liao)斗、振(zhen)(zhen)(zhen)動(dong)(dong)(dong)輸(shu)送機(ji)(ji)(ji)等(deng)各種振(zhen)(zhen)(zhen)動(dong)(dong)(dong)機(ji)(ji)(ji)械的(de)(de)(de)激振(zhen)(zhen)(zhen)源,是(shi)冶(ye)金、礦山(shan)、煤(mei)炭(tan)、建(jian)材、磨料(liao)、陶瓷、化工、糧食等(deng)工業部(bu)門的(de)(de)(de)理(li)想(xiang)設備,振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)在(zai)(zai)連續工作時(shi)(shi),周(zhou)圍空氣(qi)中(zhong)不得含有腐(fu)蝕性(xing)及爆炸性(xing)氣(qi)體(用(yong)防爆型振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)),環境溫度不得超過40℃。將振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)安裝(zhuang)在(zai)(zai)振(zhen)(zhen)(zhen)動(dong)(dong)(dong)機(ji)(ji)(ji)械上時(shi)(shi),振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)地腳螺栓(shuan)(shuan)必(bi)須(xu)緊(jin)固(gu)(gu),每(mei)(mei)個螺母下必(bi)須(xu)加彈(dan)性(xing)墊圈(quan)(quan),必(bi)要時(shi)(shi)采用(yong)雙螺母緊(jin)固(gu)(gu),振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)運轉初期(qi)(qi),由于(yu)(yu)螺栓(shuan)(shuan)、螺母、底座平面間(jian)的(de)(de)(de)磨合,會降低緊(jin)固(gu)(gu)力(li),出(chu)現小(xiao)的(de)(de)(de)松(song)動(dong)(dong)(dong),故(gu)運轉初期(qi)(qi)應(ying)將電(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)(de)地腳螺栓(shuan)(shuan)多次(ci)擰緊(jin),開始時(shi)(shi)每(mei)(mei)天緊(jin)固(gu)(gu)一(yi)(yi)(yi)(yi)次(ci),兩周(zhou)后(hou)每(mei)(mei)周(zhou)緊(jin)固(gu)(gu)一(yi)(yi)(yi)(yi)次(ci)。振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)運輸(shu)過程中(zhong)或(huo)長期(qi)(qi)閑置時(shi)(shi),可(ke)(ke)能會受潮,使(shi)用(yong)前應(ying)檢(jian)查(cha)繞組的(de)(de)(de)絕緣,如受潮應(ying)采用(yong)相應(ying)的(de)(de)(de)方法處理(li)。振(zhen)(zhen)(zhen)動(dong)(dong)(dong)電(dian)(dian)(dian)機(ji)(ji)(ji)一(yi)(yi)(yi)(yi)般運行4-6個月小(xiao)修(xiu)一(yi)(yi)(yi)(yi)次(ci),一(yi)(yi)(yi)(yi)年大(da)修(xiu)一(yi)(yi)(yi)(yi)次(ci)。小(xiao)修(xiu)時(shi)(shi)清除機(ji)(ji)(ji)體積塵,檢(jian)查(cha)線圈(quan)(quan)的(de)(de)(de)絕緣電(dian)(dian)(dian)阻、接線是(shi)否牢固(gu)(gu),及時(shi)(shi)清除隱患。大(da)修(xiu)時(shi)(shi)應(ying)拆開電(dian)(dian)(dian)機(ji)(ji)(ji),用(yong)壓(ya)縮(suo)空氣(qi)將內外吹凈,檢(jian)查(cha)軸承的(de)(de)(de)磨損,更換新(xin)的(de)(de)(de)潤滑(hua)脂。