電機包括電動機和發電機。是發電機和電動機的總稱,兩者概念上是由區別的。
但是(shi),某(mou)些電機(ji)(ji)如同步(bu)電機(ji)(ji)一(yi)般(ban)較多(duo)用作(zuo)發電機(ji)(ji),但也(ye)可(ke)直(zhi)接(jie)作(zuo)為電動機(ji)(ji)使用。異步(bu)電機(ji)(ji)更多(duo)的用于電動機(ji)(ji),但是(shi),經(jing)過增加簡(jian)單的外圍(wei)元件(jian),也(ye)可(ke)作(zuo)為發電機(ji)(ji)使用。
關(guan)于電(dian)(dian)機方面(mian)(mian)的(de)(de)一(yi)些保養(yang)(yang)注意事項,可以給你介(jie)紹(shao)介(jie)紹(shao):電(dian)(dian)刷(shua)(shua)(shua)(shua)、滑(hua)動接(jie)觸(chu)(chu)方面(mian)(mian)的(de)(de)維修保養(yang)(yang):(1)用(yong)(yong)空壓(ya)(ya)氣吹凈(jing)電(dian)(dian)刷(shua)(shua)(shua)(shua)、刷(shua)(shua)(shua)(shua)盒(he)和(he)換(huan)(huan)向(xiang)器上(shang)的(de)(de)碳粉。(2)檢查電(dian)(dian)刷(shua)(shua)(shua)(shua)接(jie)觸(chu)(chu)弧面(mian)(mian)是(shi)否(fou)有(you)(you)燒灼點,接(jie)觸(chu)(chu)面(mian)(mian)是(shi)否(fou)均勻(yun)、光滑(hua),如有(you)(you)缺陷應立即更換(huan)(huan)。 (3)檢查電(dian)(dian)刷(shua)(shua)(shua)(shua)在(zai)(zai)刷(shua)(shua)(shua)(shua)盒(he)內是(shi)否(fou)浮動靈活。 (4)檢查電(dian)(dian)刷(shua)(shua)(shua)(shua)的(de)(de)壓(ya)(ya)力(li)大(da)小是(shi)否(fou)均勻(yun)適當,通常情(qing)況下(xia)電(dian)(dian)刷(shua)(shua)(shua)(shua)壓(ya)(ya)力(li)為(1.76~2.25)104Pa,根據電(dian)(dian)刷(shua)(shua)(shua)(shua)的(de)(de)截(jie)面(mian)(mian)積(ji)算出每(mei)個電(dian)(dian)刷(shua)(shua)(shua)(shua)壓(ya)(ya)力(li),再與實際測出的(de)(de)壓(ya)(ya)力(li)進行比較(jiao)。無論電(dian)(dian)刷(shua)(shua)(shua)(shua)的(de)(de)長(chang)短,其壓(ya)(ya)力(li)都應達到(dao)要(yao)(yao)求。 (5)檢查電(dian)(dian)刷(shua)(shua)(shua)(shua)的(de)(de)磨損(sun)(sun)高度,當電(dian)(dian)刷(shua)(shua)(shua)(shua)磨損(sun)(sun)到(dao)原高度的(de)(de)1/3時應予更換(huan)(huan)。 需(xu)要(yao)(yao)注意:電(dian)(dian)刷(shua)(shua)(shua)(shua)一(yi)次性更換(huan)(huan)數量(liang)不宜過多(duo),成(cheng)批更換(huan)(huan)電(dian)(dian)刷(shua)(shua)(shua)(shua)易損(sun)(sun)壞原換(huan)(huan)向(xiang)器表面(mian)(mian)的(de)(de)氧化膜。只需(xu)將(jiang)磨短的(de)(de)或有(you)(you)問題的(de)(de)電(dian)(dian)刷(shua)(shua)(shua)(shua)換(huan)(huan)下(xia)即可。 在(zai)(zai)同(tong)(tong)一(yi)臺(tai)電(dian)(dian)機上(shang),絕不允許使用(yong)(yong)不同(tong)(tong)牌號的(de)(de)電(dian)(dian)刷(shua)(shua)(shua)(shua),即使同(tong)(tong)一(yi)牌號的(de)(de)電(dian)(dian)刷(shua)(shua)(shua)(shua),因制造時間不同(tong)(tong),性能也(ye)有(you)(you)明(ming)顯差異,所(suo)以也(ye)不允許使用(yong)(yong)。 (6)檢查刷(shua)(shua)(shua)(shua)辮的(de)(de)固定是(shi)否(fou)可靠(kao),電(dian)(dian)刷(shua)(shua)(shua)(shua)振動和(he)壓(ya)(ya)力(li)不均都容易引起(qi)各電(dian)(dian)刷(shua)(shua)(shua)(shua)電(dian)(dian)流分(fen)配不均。
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