一台JS型铜(tong)(tong)(tong)笼(long)条转(zhuan)(zhuan)子(zi)电动(dong)机堵转(zhuan)(zhuan)电流不(bu)平衡(heng)又偏小分(fen)析检查(cha)着重对转(zhuan)(zhuan)子(zi)铁心和(he)笼(long)条检查(cha)，发现有三个槽的(de)铜(tong)(tong)(tong)笼(long)条离(li)铁心端45mm处(chu)断(duan)裂，其中三根(gen)全断(duan)开，一根(gen)尚有1mm厚相连(lian)。细看断(duan)裂的(de)4 根(gen)为Φ10mm黄铜(tong)(tong)(tong)棒，为上(shang)次断(duan)条故障时(shi)更换(huan)的(de)，其余均为原(yuan)配Φ10mm紫(zi)铜(tong)(tong)(tong)棒。分(fen)析原(yuan)因(yin)是(shi)电动(dong)机转(zhuan)(zhuan)子(zi)不(bu)平衡(heng)振动(dong)大，新换(huan)黄铜(tong)(tong)(tong)棒材质不(bu)佳(jia)，焊(han)接(jie)不(bu)良，才导(dao)致二次断(duan)条。

1000kW电机维修修理方法：

通过调整(zheng)(zheng)(zheng)潜水电动(dong)机(ji)窜动(dong)量(liang)及(ji)轴向尺寸的积累误差，用以纠正开关装配尺寸误差，调整(zheng)(zheng)(zheng)后起动(dong)有好转，但仍不理(li)想，检查发现(xian)开关转速整(zheng)(zheng)(zheng)定值取的偏低，经适当调整(zheng)(zheng)(zheng)和整(zheng)(zheng)(zheng)定后，起动(dong)故障没有了。

　三相电动(dong)(dong)(dong)(dong)机(ji)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)困(kun)难(nan)修理实例3、4某化(hua)工厂用185kw 西玛电动(dong)(dong)(dong)(dong)机(ji)增大(da)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)转矩(ju)(ju)解决起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)困(kun)难(nan)的(de)做法问题(ti)分析三相异步电动(dong)(dong)(dong)(dong)机(ji)为了降压起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)，通常采(cai)用丫联结(jie)起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)，△ 联结(jie)运(yun)行(xing)。该机(ji)驱动(dong)(dong)(dong)(dong)的(de)化(hua)工机(ji)械惯性大(da)，起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)时要(yao)求有较大(da)转矩(ju)(ju)，运(yun)行(xing)中要(yao)求转矩(ju)(ju)较小(xiao)，运(yun)行(xing)时电流为额定值的(de)1/3~ 1/6 。换小(xiao)容量电动(dong)(dong)(dong)(dong)机(ji)又满足不了起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)要(yao)求。结(jie)果采(cai)取改变起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)和运(yun)行(xing)时绕(rao)组联结(jie)方式，既克(ke)服了起(qi)(qi)(qi)动(dong)(dong)(dong)(dong)困(kun)难(nan)，又节约(yue)了电能。

　修(xiu)理(li)方法因该机引(yin)出6 根引(yin)线，丫(ya)形(xing)联(lian)(lian)结时，三(san)根末(mo)端引(yin)线在外部封成星(xing)点。只(zhi)要先剥(bo)去星(xing)点外绝(jue)缘(yuan)层(ceng)，用电烙铁烫开(kai)星(xing)点，把三(san)相(xiang)首(shou)末(mo)引(yin)线相(xiang)序找对后，再(zai)按△ 形(xing)联(lian)(lian)结接好(hao)线，焊牢和(he)包(bao)上绝(jue)缘(yuan)，就把接错线的毛病纠正。

1000kW电机(ji)(ji)维修价(jia)格，前进(jin)水泥助磨(mo)剂有限公司为(wei)您(nin)提供生料(liao)烘(hong)(hong)(hong)干风(feng)扫磨(mo)技(ji)术改造、煤(mei)磨(mo)动态选(xuan)粉机(ji)(ji)。生料(liao)烘(hong)(hong)(hong)干风(feng)扫磨(mo)技(ji)术改造，煤(mei)磨(mo)动态选(xuan)粉机(ji)(ji)高效动态立式(shi)烘(hong)(hong)(hong)干机(ji)(ji)的(de)关键技(ji)术是使(shi)物(wu)料(liao)能(neng)在(zai)烘(hong)(hong)(hong)干机(ji)(ji)内尽可能(neng)分(fen)散，以提高热(re)烟(yan)气(qi)与物(wu)料(liao)接触面积，同时(shi)控(kong)制物(wu)料(liao)在(zai)烘(hong)(hong)(hong)干机(ji)(ji)各区域流速和停留时(shi)间(jian)，使(shi)热(re)烟(yan)气(qi)与物(wu)料(liao)充(chong)分(fen)对(dui)流、辐射、传导换(huan)热(re)。

采(cai)用(yong)物(wu)(wu)料烘干参(can)数优化(hua)微(wei)机(ji)软件技术，对(dui)预(yu)热(re)带、烘干带、干燥带三个区域的(de)物(wu)(wu)料水份和气(qi)体温度进行在线(xian)检测，并对(dui)系(xi)统的(de)供(gong)热(re)能(neng)(neng)力(li)、引风量、二次(ci)热(re)风分(fen)布及供(gong)热(re)能(neng)(neng)力(li)、物(wu)(wu)料截(jie)流量及停(ting)留时间等系(xi)统参(can)数进行在线(xian)调整，实(shi)现系(xi)统的(de)动态优化(hua)平衡，提(ti)高(gao)系(xi)统热(re)能(neng)(neng)利(li)用(yong)率。高(gao)效(xiao)动态立(li)(li)(li)式(shi)(shi)烘干机(ji)主要由(you)固定(ding)筒体、进出风装置、进出料装置、热(re)交换装置、保温装置等构(gou)成。本(ben)产(chan)品所采(cai)用(yong)的(de)动态立(li)(li)(li)式(shi)(shi)烘干技术能(neng)(neng)使(shi)物(wu)(wu)料在烘干机(ji)内(nei)尽可能(neng)(neng)分(fen)散以提(ti)高(gao)热(re)烟气(qi)与物(wu)(wu)料接触(chu)的(de)面积，使(shi)热(re)烟气(qi)与物(wu)(wu)料充分(fen)对(dui)流、辐(fu)射、传(chuan)导换热(re)。结构(gou)创新点运(yun)用(yong)高(gao)效(xiao)立(li)(li)(li)式(shi)(shi)烘干机(ji)的(de)烘干原(yuan)理和方法，同时。

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