一、步進電機的使用壽命有多久
步進電機特點(dian)是體積小,壽命(ming)長,步(bu)進(jin)電(dian)機的使用(yong)壽命(ming)通常取決于(yu)軸承壽命(ming),質量(liang)合格(ge)的步(bu)進(jin)電(dian)機可(ke)達上萬至數萬小時(shi)。
步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機的使(shi)(shi)用壽命還(huan)與(yu)應(ying)用環境、供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓、負載還(huan)有(you)一定關系(xi),比如(ru)電(dian)(dian)(dian)(dian)(dian)腦雕(diao)刻(ke)機給步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機的供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓較(jiao)高,電(dian)(dian)(dian)(dian)(dian)流較(jiao)大,運行速度(du)高,負載大,因此電(dian)(dian)(dian)(dian)(dian)腦雕(diao)刻(ke)機上使(shi)(shi)用的步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機使(shi)(shi)用壽命往往在兩萬個小時以內(nei),除了軸(zhou)承損耗(hao),還(huan)有(you)電(dian)(dian)(dian)(dian)(dian)機溫(wen)度(du)高導致的磁衰減和線圈老化等問題。另外有(you)的步進(jin)(jin)電(dian)(dian)(dian)(dian)(dian)機應(ying)用環境溫(wen)度(du)高,或者有(you)油污、粉(fen)塵、水等污染,也(ye)會縮(suo)短使(shi)(shi)用壽命。
二、步進電機怎么保養
1、步進電機應存放、安裝在環境溫度(du)為-40~+50℃、相對濕度(du)不大于95%的(de)(de)清潔(jie)通風良(liang)好(hao)的(de)(de)環境內,空(kong)氣中不得含(han)有腐蝕性、易(yi)燃性氣體(ti)、油霧、粉塵。步進電(dian)機在搬運過程(cheng)中應(ying)小心輕放,避免碰撞和沖擊,嚴禁與(yu)酸堿等腐蝕性物質放在一(yi)起(qi)。
2、步進電機(ji)的安裝(zhuang)環境要(yao)求同存(cun)放環境要(yao)求,另(ling)外步進電機(ji)長時間接(jie)觸(chu)滲(shen)透力很強的液態物質,會(hui)導致運行異常(chang)或壽(shou)命縮短。應盡量避免接(jie)觸(chu),更不(bu)能將其浸(jin)泡(pao)在液態物質里。
3、步進電(dian)機(ji)運行時(shi),要防(fang)止人體及外來物質觸(chu)及步進電(dian)機(ji)內部的(de)(de)電(dian)氣、機(ji)械(xie)的(de)(de)危險性部件,保證人的(de)(de)安全和步進電(dian)機(ji)的(de)(de)正常工(gong)作。
4、當(dang)步(bu)進(jin)(jin)電機(ji)(ji)使(shi)用(yong)(yong)一段時(shi)(shi)間后(hou),表面(mian)會(hui)有(you)一些灰(hui)(hui)塵存(cun)在,灰(hui)(hui)塵太多會(hui)影響電機(ji)(ji)的(de)美觀(guan)性和電機(ji)(ji)的(de)散熱。因此要及時(shi)(shi)清(qing)(qing)除灰(hui)(hui)塵,保證步(bu)進(jin)(jin)電機(ji)(ji)恢(hui)復到(dao)干凈、美觀(guan)的(de)狀態。步(bu)進(jin)(jin)電機(ji)(ji)在做(zuo)清(qing)(qing)潔時(shi)(shi),要關閉設備電源(yuan),不能用(yong)(yong)腐蝕(shi)性的(de)有(you)機(ji)(ji)溶劑清(qing)(qing)潔。
5、如(ru)果步(bu)進(jin)電機(ji)在運(yun)行中(zhong),出現各種異(yi)(yi)響,那么(me)需要立刻停機(ji)檢查,檢查內容包括但不限(xian)于:聯軸器是否(fou)(fou)松(song)動(dong),皮帶輪是否(fou)(fou)松(song)動(dong),各個緊固螺絲是否(fou)(fou)松(song)動(dong),滑塊、滑軌是否(fou)(fou)異(yi)(yi)常(chang)(chang)、各定位(wei)感應(ying)器是異(yi)(yi)常(chang)(chang)、線路連接是否(fou)(fou)有異(yi)(yi)常(chang)(chang)等(deng)。若發(fa)現異(yi)(yi)常(chang)(chang),應(ying)及時(shi)處理,等(deng)處理好后再(zai)恢復設備(bei)正常(chang)(chang)運(yun)行。
6、步進電機在運行的時候,要檢查溫度是否合適,一般手觸步進電機外殼不(bu)會感到十(shi)分燙手即可。如(ru)機(ji)體溫度超過130°,步進電(dian)機(ji)會損壞(huai),應及時檢查、處理。
7、設置驅動電流(liu)時,請勿(wu)使輸入(ru)電流(liu)大于步進電機(ji)的(de)額定電流(liu)。
8、如果設(she)備沒(mei)有特(te)殊(shu)要求,請選擇(ze)半電(dian)(dian)流鎖(suo)定。有的步進電(dian)(dian)機驅動器有靜態(tai)電(dian)(dian)流選項或默認的靜態(tai)半電(dian)(dian)流,以減少(shao)步進電(dian)(dian)機的發(fa)熱。