步進電機是利用(yong)電(dian)(dian)(dian)子電(dian)(dian)(dian)路(lu),將(jiang)直流(liu)電(dian)(dian)(dian)變成分時供電(dian)(dian)(dian)的,多相時序控制電(dian)(dian)(dian)流(liu),用(yong)這(zhe)種(zhong)電(dian)(dian)(dian)流(liu)為步進(jin)電(dian)(dian)(dian)機(ji)供電(dian)(dian)(dian),步進(jin)電(dian)(dian)(dian)機(ji)才能正常(chang)(chang)工(gong)(gong)(gong)作。通常(chang)(chang),步進(jin)電(dian)(dian)(dian)機(ji)出現不能正常(chang)(chang)工(gong)(gong)(gong)作的情況(kuang),可以借助(zhu)什(shen)么(me)方(fang)法判斷步進(jin)電(dian)(dian)(dian)機(ji)是否壞了呢?今(jin)天(tian)電(dian)(dian)(dian)工(gong)(gong)(gong)學(xue)習網(wang)小(xiao)編(bian)將(jiang)和您(nin)分享兩種(zhong)實用(yong)的方(fang)法,能快速、輕松的進(jin)行判斷。
如果步進(jin)電(dian)機不能正(zheng)常(chang)工作,判斷其是(shi)否壞了的(de)(de)方法(fa)有(you)兩(liang)種(zhong): 第一(yi),在不接任何(he)設備和線的(de)(de)情況下,把步進(jin)電(dian)機的(de)(de)每(mei)根線分開,不要(yao)碰線,用(yong)手轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)轉(zhuan)(zhuan)(zhuan)(zhuan)軸,好電(dian)機,應該是(shi)只(zhi)需要(yao)一(yi)定的(de)(de)力,就(jiu)可(ke)以順(shun)利的(de)(de)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong),中間(jian)無卡的(de)(de)現(xian)象(xiang),若中間(jian)出(chu)(chu)現(xian)某個位置較卡或(huo)完全無法(fa)轉(zhuan)(zhuan)(zhuan)(zhuan)動(dong)時(shi),表(biao)明電(dian)機已(yi)壞,可(ke)能是(shi)軸承移位,內部轉(zhuan)(zhuan)(zhuan)(zhuan)子和定子磨損。損壞原(yuan)因應為(wei)受外(wai)力過大導致(zhi)。可(ke)以用(yong)萬用(yong)表(biao)量(liang)“相(xiang)(xiang)鄰”兩(liang)相(xiang)(xiang)的(de)(de)阻(zu)抗(kang),應該都等(deng)于產品給出(chu)(chu)的(de)(de)線圈阻(zu)抗(kang)。
如果上設(she)備檢測(ce)空轉時(shi)(shi),應該(gai)能(neng)達(da)到(dao)規(gui)定(ding)(ding)的(de)(de)(de)轉速,在(zai)一(yi)(yi)般(ban)的(de)(de)(de)轉速時(shi)(shi),發出的(de)(de)(de)噪音應平(ping)穩。除此(ci)以外(wai)(wai)就(jiu)(jiu)需(xu)(xu)(xu)要帶負載(zai)(zai)測(ce)試。具(ju)體測(ce)試參(can)數就(jiu)(jiu)需(xu)(xu)(xu)要結合負載(zai)(zai)轉矩和(he)電機(ji)的(de)(de)(de)轉矩等。把線(xian)(xian)(xian)(xian)都(dou)擰(ning)(ning)到(dao)一(yi)(yi)起(qi),電機(ji)越(yue)大(da),擰(ning)(ning)動(dong)(dong)(dong)所(suo)需(xu)(xu)(xu)要的(de)(de)(de)力越(yue)大(da),一(yi)(yi)般(ban)的(de)(de)(de)步進電機(ji)根(gen)(gen)本就(jiu)(jiu)無法靠人力擰(ning)(ning)動(dong)(dong)(dong)。(擰(ning)(ning)一(yi)(yi)起(qi)的(de)(de)(de)線(xian)(xian)(xian)(xian)越(yue)多,所(suo)需(xu)(xu)(xu)要的(de)(de)(de)力越(yue)大(da)。)若(ruo)無效(xiao)時(shi)(shi),表明線(xian)(xian)(xian)(xian)圈壞(huai)。 上設(she)備檢測(ce),空轉時(shi)(shi),應該(gai)能(neng)達(da)到(dao)規(gui)定(ding)(ding)的(de)(de)(de)轉速,在(zai)一(yi)(yi)般(ban)的(de)(de)(de)轉速時(shi)(shi),發出的(de)(de)(de)噪音應平(ping)穩。除此(ci)以外(wai)(wai)就(jiu)(jiu)需(xu)(xu)(xu)要帶負載(zai)(zai)測(ce)試。具(ju)體測(ce)試參(can)數就(jiu)(jiu)需(xu)(xu)(xu)要結合負載(zai)(zai)轉矩和(he)電機(ji)的(de)(de)(de)轉矩等。 第(di)二,把線(xian)(xian)(xian)(xian)都(dou)擰(ning)(ning)到(dao)一(yi)(yi)起(qi),電機(ji)越(yue)大(da),擰(ning)(ning)動(dong)(dong)(dong)所(suo)需(xu)(xu)(xu)要的(de)(de)(de)力越(yue)大(da),一(yi)(yi)般(ban)的(de)(de)(de)步進電機(ji)根(gen)(gen)本就(jiu)(jiu)無法靠人力擰(ning)(ning)動(dong)(dong)(dong)。(擰(ning)(ning)一(yi)(yi)起(qi)的(de)(de)(de)線(xian)(xian)(xian)(xian)越(yue)多,所(suo)需(xu)(xu)(xu)要的(de)(de)(de)力越(yue)大(da)。)若(ruo)無效(xiao)時(shi)(shi),表明線(xian)(xian)(xian)(xian)圈壞(huai)。
針對(dui)同(tong)步(bu)電機(ji)(ji)而言(yan),除了以上的(de)方法外,就是需要仔(zi)細觀察其轉子,這是不(bu)能(neng)(neng)(neng)忽略的(de)。如果轉子上有縫隙,不(bu)錯位(wei)且較小,指(zhi)甲都不(bu)能(neng)(neng)(neng)夠嵌入,動(dong)力性能(neng)(neng)(neng)至少打8折以上,此時極容易出現丟步(bu)的(de)可能(neng)(neng)(neng),建(jian)議更(geng)換;而步(bu)進電機(ji)(ji)其致命(ming)弱點就是裝(zhuang)卸時不(bu)能(neng)(neng)(neng)夠敲(qiao)打,很(hen)容易把里面的(de)編(bian)碼器(qi)(qi)振壞(huai)(huai)。步(bu)進電機(ji)(ji)其動(dong)力線圈燒壞(huai)(huai)的(de)幾率相當低(di),編(bian)碼器(qi)(qi)和接頭(tou)損壞(huai)(huai)都是常見的(de),而步(bu)進故障(zhang)常見的(de)也就是編(bian)碼器(qi)(qi)故障(zhang)。
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