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江苏J9九游会AG动力集团 >> 技术支持 >> 柴油发电机转速不均匀?发电机不充电?那是什么原因呢?

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柴油发电机转速不均匀?发电机不充电?那是什么原因呢?

[文(wen)章来源(yuan):J9九游会AG] [发布日期:2022-11-01] [浏览次数:]
  柴(chai)油发(fa)电(dian)机转速不均表现为两个方(fang)面:一是大(da)摆动,声响(xiang)明显(xian),一般(ban)称(cheng)为"喘"或"游车";二是转速波动小,声响(xiang)不易分辨(bian),在低转速下容易发(fa)生,而且容易引起柴(chai)油发(fa)电(dian)机熄火。

  引起柴油发电机转速(su)不(bu)均现(xian)象(xiang)的原因(yin),主(zhu)要(yao)是喷油泵与调速(su)部分运(yun)动部件受(shou)异常阻力所致,调速(su)器反应迟钝。其中有许多具体(ti)因(yin)素,通常如下8个方面

  1.供(gong)油量不均匀。柴油发电机运转时(shi),供(gong)油多的缸(gang),工作强度(du)大,有响声,冒黑(hei)烟。供(gong)油缸(gang)少,工作无(wu)力,甚(shen)至(zhi)不工作。最(zui)后(hou)从而导致柴油发电机运转不均。

  2.单(dan)缸不(bu)(bu)(bu)工作的多缸柴油发电机若有一缸不(bu)(bu)(bu)工作,则其运转(zhuan)不(bu)(bu)(bu)平稳,爆发声(sheng)音(yin)不(bu)(bu)(bu)均匀。可以用停(ting)缸法检查出那个汽缸没有着火。

  3.柴油供应系统内(nei)有空气(qi)和水(shui)气(qi),油泵的运转(zhuan)不正常。

  4.燃(ran)油供给时(shi)间(jian)过早,容易出(chu)现高速"游车",低速时(shi)反而稳(wen)定的现象。

  5.喷油泵调油时的(de)齿(chi)杆或拨叉拉杆不灵(ling)活,使(shi)调速器的(de)灵(ling)敏度下(xia)降。

  6.没有适当(dang)的(de)调(diao)速(su)(su),从而导致柴(chai)油发电机转速(su)(su)不稳定(ding)(ding)。减(jian)速(su)(su)器(qi)各连接处的(de)磨损间隙增大(da)。如果钢球(qiu)或垂直(zhi)运(yun)(yun)动(dong)部件卡(ka)住或调(diao)速(su)(su)弹簧(huang)失效,调(diao)速(su)(su)器(qi)必须克(ke)服阻(zu)力或先消除间隙,才能移动(dong)调(diao)整齿杆或叉拉杆来(lai)增加或减(jian)少(shao)供油。因(yin)速(su)(su)度调(diao)节不及(ji)时,速(su)(su)度突然升高(gao)或降(jiang)低。组合式喷油泵(beng)用于135.105等型号。打开喷油泵(beng)后盖,可以看(kan)到调(diao)节拉杆定(ding)(ding)期反复运(yun)(yun)动(dong)。如果柴(chai)油发电机游(you)车稍有点,就可以看(kan)到此时拉杆会发生抖动(dong)。

  7.喷油(you)嘴烧(shao)掉或滴油(you)。

  8.气(qi)门(men)间隙不正确。

发电机转速

  柴油发电(dian)机未充电(dian)的原因及对策(ce):

  柴油发动机(ji)(ji)用(yong)直流充电(dian)(dian)(dian)(dian)(dian)发电(dian)(dian)(dian)(dian)(dian)机(ji)(ji),它(ta)能在(zai)充电(dian)(dian)(dian)(dian)(dian)发电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)电(dian)(dian)(dian)(dian)(dian)枢(shu)接(jie)线(xian)柱与壳(qiao)体之间"试火(huo)(huo)"点火(huo)(huo),说(shuo)明(ming)充电(dian)(dian)(dian)(dian)(dian)器(qi)本(ben)身和磁(ci)(ci)场接(jie)线(xian)柱.调(diao)节器(qi)内的(de)调(diao)压器(qi).限流和充电(dian)(dian)(dian)(dian)(dian)发电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)电(dian)(dian)(dian)(dian)(dian)枢(shu)导轨等(deng)整(zheng)个励磁(ci)(ci)电(dian)(dian)(dian)(dian)(dian)路非常(chang)好。错(cuo)误(wu)应该在(zai)调(diao)整(zheng)器(qi)的(de)电(dian)(dian)(dian)(dian)(dian)枢(shu)接(jie)线(xian)柱.切断器(qi)到安培计部分。如无(wu)火(huo)(huo)或火(huo)(huo)花(hua)微弱(ruo),则表(biao)示(shi)发电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)或它(ta)的(de)磁(ci)(ci)场终端.调(diao)节电(dian)(dian)(dian)(dian)(dian)压调(diao)整(zheng)器(qi).电(dian)(dian)(dian)(dian)(dian)流限流至充电(dian)(dian)(dian)(dian)(dian)发电(dian)(dian)(dian)(dian)(dian)机(ji)(ji)电(dian)(dian)(dian)(dian)(dian)枢(shu)连接(jie)柱即整(zheng)个励磁(ci)(ci)电(dian)(dian)(dian)(dian)(dian)路失效。

  这时(shi),可将(jiang)电(dian)(dian)压(ya)调整器(qi)上的(de)电(dian)(dian)枢和(he)蓄电(dian)(dian)池连接起来,并观察安(an)培计(ji)的(de)指(zhi)示。可分为两种(zhong)情况(kuang):一(yi)种(zhong)是(shi)充(chong)电(dian)(dian)电(dian)(dian)流(liu),反(fan)映出(chu)调压(ya)器(qi)截流(liu)器(qi)触(chu)(chu)头(tou)(tou)烧蚀(shi)或(huo)并联线圈出(chu)现短路(lu),从而导致触(chu)(chu)点没(mei)有办法(fa)关闭;另一(yi)种(zhong)是(shi)无(wu)充(chong)电(dian)(dian)电(dian)(dian)流(liu),反(fan)映出(chu)调压(ya)器(qi)电(dian)(dian)池接线柱与安(an)培计(ji)连接线断(duan)开,接触(chu)(chu)不(bu)(bu)良(liang)(liang)。当上述(shu)两种(zhong)可能(neng)(neng)(neng)的(de)故障都不(bu)(bu)能(neng)(neng)(neng)充(chong)电(dian)(dian)时(shi),就可以把临时(shi)导线转(zhuan)换成充(chong)电(dian)(dian)发(fa)电(dian)(dian)机电(dian)(dian)枢和(he)磁场柱。同时(shi),还(hai)有两种(zhong)可能(neng)(neng)(neng)的(de)情况(kuang)发(fa)生(sheng):一(yi)种(zhong)是(shi)可充(chong)电(dian)(dian),反(fan)映出(chu)充(chong)电(dian)(dian)发(fa)电(dian)(dian)机没(mei)有问题,而电(dian)(dian)压(ya)调压(ya)器(qi)的(de)激磁电(dian)(dian)路(lu)失效了,如由于触(chu)(chu)点烧蚀(shi)或(huo)弹簧(huang)拉弱,造成触(chu)(chu)头(tou)(tou)接触(chu)(chu)不(bu)(bu)良(liang)(liang),两触(chu)(chu)点间连线断(duan)路(lu)或(huo)电(dian)(dian)(dian)阻烧坏等(deng);另一(yi)种(zhong)(zhong)是(shi)不充(chong)电(dian)(dian)(dian),可(ke)(ke)将充(chong)电(dian)(dian)(dian)发(fa)电(dian)(dian)(dian)机(ji)连(lian)接调(diao)整器的(de)导(dao)线(xian)拆卸,用电(dian)(dian)(dian)线(xian)连(lian)接发(fa)电(dian)(dian)(dian)机(ji)电(dian)(dian)(dian)枢(shu)和磁场(chang)连(lian)接柱(zhu),并对壳体进行测试(shi)。此外,还存(cun)在两种(zhong)(zhong)可(ke)(ke)能(neng)性:火(huo)花显示发(fa)电(dian)(dian)(dian)机(ji)很好,而没有充(chong)电(dian)(dian)(dian)的(de)原(yuan)因可(ke)(ke)能(neng)是(shi)调(diao)压器的(de)激励电(dian)(dian)(dian)路(lu)被引到铁(tie)(tie)芯上(shang);一(yi)个火(huo)花反映出(chu)发(fa)电(dian)(dian)(dian)机(ji)本身(shen)(shen)存(cun)在故障,可(ke)(ke)能(neng)是(shi)碳刷(shua)或(huo)整流子接触(chu)不良.电(dian)(dian)(dian)枢(shu)或(huo)磁场(chang)线(xian)圈损坏或(huo)搭铁(tie)(tie)出(chu)现(xian)短路(lu)等(deng)。如上(shang)述(shu)几(ji)种(zhong)(zhong)方法(fa)均无效,且被检查的(de)部件(jian)均工作正常,则(ze)可(ke)(ke)以(yi)在此时判断(duan)是(shi)安培计本身(shen)(shen)有故障。

  一台采(cai)用硅整流发电(dian)机、工作时安培计没有充电(dian)指(zhi)示,其判(pan)断检(jian)验方法:

  首先要检查(cha)电(dian)池的(de)(de)(de)搭铁(tie)极(ji)性是(shi)否(fou)正确(que),硅(gui)整流发(fa)(fa)(fa)电(dian)机(ji)(ji)的(de)(de)(de)传动(dong)带是(shi)否(fou)过(guo)松或滑(hua)动(dong)。如果导线连(lian)接(jie)(jie)正确(que),可以(yi)使用旋转工具(ju)与硅(gui)整流发(fa)(fa)(fa)电(dian)机(ji)(ji)的(de)(de)(de)后端盖接(jie)(jie)触(chu),试着(zhe)吸(xi)力(li)(li)是(shi)否(fou)存(cun)在。一(yi)般情况(kuang)(kuang)下(xia),吸(xi)力(li)(li)应大于此。另外还(hai)反映(ying)(ying)出(chu)(chu)(chu)硅(gui)整流发(fa)(fa)(fa)电(dian)机(ji)(ji)的(de)(de)(de)励磁(ci)电(dian)路(lu)(lu)部(bu)分(fen)(fen)可能有开(kai)路(lu)(lu)。要判断(duan)(duan)开(kai)断(duan)(duan)部(bu)分(fen)(fen),应拆卸发(fa)(fa)(fa)电(dian)机(ji)(ji)磁(ci)场(chang)(chang)连(lian)接(jie)(jie)线柱线头,并将其与机(ji)(ji)壳(qiao)擦伤,可产生三(san)(san)种(zhong)情况(kuang)(kuang):一(yi)种(zhong)为无火花,反映(ying)(ying)出(chu)(chu)(chu)调整器(qi)到发(fa)(fa)(fa)电(dian)机(ji)(ji)磁(ci)场(chang)(chang)的(de)(de)(de)接(jie)(jie)线柱连(lian)接(jie)(jie)有断(duan)(duan)路(lu)(lu);另一(yi)个可能出(chu)(chu)(chu)现蓝(lan)色小火花,反映(ying)(ying)出(chu)(chu)(chu)调整器(qi)触(chu)头氧化,第三(san)(san)种(zhong)情况(kuang)(kuang)是(shi)出(chu)(chu)(chu)现强烈的(de)(de)(de)白光,并发(fa)(fa)(fa)出(chu)(chu)(chu)"啪"的(de)(de)(de)声响,反映(ying)(ying)出(chu)(chu)(chu)磁(ci)场(chang)(chang)连(lian)接(jie)(jie)良好,而硅(gui)整流发(fa)(fa)(fa)电(dian)机(ji)(ji)内励磁(ci)电(dian)路(lu)(lu)开(kai)放(fang),由于碳刷架接(jie)(jie)地不(bu)良或碳刷从碳刷架上(shang)脱落等原因造成的(de)(de)(de)。

  如果(guo)硅整流发电(dian)机的励磁电(dian)路连接良(liang)好,打开调(diao)节盖,在(zai)旋转器和(he)固定接触(chu)架之间,使磁场电(dian)流不受调(diao)节器的控制,通(tong)过旋转器形(xing)成(cheng)通(tong)路。把(ba)柴(chai)油稳定在(zai)中.高速以上时,观察安培(pei)计(ji),会出现(xian)两种(zhong)情况(kuang):一种(zhong)是安培(pei)计(ji)马(ma)上有(you)电(dian)出现(xian),说明硅整流(liu)发电(dian)(dian)机良(liang)好,另(ling)(ling)外(wai),调节器(qi)弹(dan)簧弹(dan)力过(guo)松,另(ling)(ling)一种(zhong)是(shi)还没有(you)充电(dian)(dian)电(dian)(dian)流(liu),此时应进一步尝试,可将硅整流(liu)发电(dian)(dian)机电(dian)(dian)枢接(jie)线柱(zhu)上的导线与机壳摩(mo)擦,如果有(you)火花说明电(dian)(dian)枢接(jie)线良(liang)好,而硅整流发电(dian)(dian)机内部发生(sheng)故(gu)障(zhang),如(ru)果没有火花,则说(shuo)明与电(dian)(dian)枢相关(guan)的电(dian)(dian)线断开。如(ru)需了(le)解(jie)更多相关(guan)详情欢(huan)迎关(guan)注J9九游会AG微信二维(wei)码:

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