橋式起重機吊車維修修理訣竅

zaitongyongqiaoshiqizhongjidiaocheweixiudecaozuoheshiyongzhong，changhuichuxianyixiejiandandebushiguzhangyoubunengjinxingcaozuodexianxiang。zheduiyuxinshanggangdecaozuorenyuan，huomeiyouweixiuren員的單位，需要了解並掌握一些識別技能
，以免等待維修而影響生產。

　 (1)某單位一台10 tshuangliangqiaoshiqizhongji，qidianyuanzhishidengliang
，caozongliandongtaizhishidengliang
，danquebunengqidong。jingweixiurenyuandaoxianchangjianzha
，faxiancongsijishidaozoutaideanquanmenmeiyouguanshang。diaocheweixiudangweixiurenyuanjianganquanmenguanhaohou，qizhongjideyiqiecaozuozhengchang，zhejiushiyizhongjiaguzhang。zaiqizhongjideanquanbaohuzhong，duicangkoumen、sijishimenhejianxiumenshangjunyouyigemenkaiguan
，dangqizhongjisijihuoweixiurenyuandaoqizhongjishangjinxingjianxiushi
，bixudakaicangkoumendaoqizhongjizoutaishang，huodakaijianxiumendaoqizhongjiguidaoliangshang，zheshidakaidemenshangdianqikaiguandechangbichudianduankai，dianqixiangdezhujiechuqishifang，jinerqieduanqizhongjidianyuan，shiqizhongjiwufaqidong。diaochexiulitongshizhezhongbaohushijianxiurenyuanmianshouqiaojiashangxiaochehuaxiandaidiandeweixie，yekefangzhitarenqidongkaicheshangjijianxiurenyuan。kejiananquanmenkaiguandebaohuzuoyongfeichangbiyao。

　　(2)一台10 t雙(shuang)梁(liang)橋(qiao)式(shi)起(qi)重(zhong)機(ji)的(de)供(gong)電(dian)正(zheng)常(chang)，各(ge)安(an)全(quan)門(men)關(guan)閉(bi)完(wan)好(hao)
，但(dan)無(wu)法(fa)起(qi)動(dong)。經(jing)維(wei)修(xiu)人(ren)員(yuan)現(xian)場(chang)檢(jian)查(zha)
，發(fa)現(xian)起(qi)升(sheng)控(kong)製(zhi)凸(tu)輪(lun)沒(mei)有(you)很(hen)好(hao)地(di)回(hui)零(ling)，即(ji)凸(tu)輪(lun)的(de)零(ling)點(dian)標(biao)誌(zhi)雖(sui)在(zai)零(ling)的(de)位(wei)置(zhi)上(shang)，但(dan)零(ling)位(wei)保(bao)護(hu)觸(chu)點(dian)沒(mei)有(you)接(jie)觸(chu)上(shang)。因(yin)為(wei)這(zhe)是(shi)一(yi)台(tai)使(shi)用(yong)多(duo)年(nian)的(de)起(qi)重(zhong)機(ji)，其(qi)觸(chu)點(dian)彈(dan)力(li)減(jian)弱(ruo)，產(chan)生(sheng)有(you)時(shi)接(jie)觸(chu)不(bu)上(shang)的(de)假(jia)故(gu)障(zhang)。將(jiang)觸(chu)點(dian)更(geng)換(huan)為(wei)新(xin)的(de)，不(bu)起(qi)動(dong)問(wen)題(ti)得(de)到(dao)解(jie)決(jue)。從(cong)凸(tu)輪(lun)控(kong)製(zhi)器(qi)的(de)結(jie)構(gou)可(ke)知(zhi)
，隻(zhi)有(you)在(zai)各(ge)控(kong)製(zhi)器(qi)手(shou)柄(bing)置(zhi)於(yu)零(ling)位(wei)時(shi)
，起(qi)升(sheng)、小車和大車控製器的零位觸頭才閉合。而在其它任何工作位置(即非零位置)時，都處於斷開位置。吊車修理因此，當任何一控製器手柄不在零位(或零位觸點沒有閉合)shi，qizhongjizhuhuilujiubunengjietong，qizhongjiyewufaqidong。zhejiufangzhileyouyumouzhongyuanyinshoubingweihuilingwei，erzaizhiyugongzuoweizhiqingkuangxiazhongxinqidongshi，fashengjigouturandongzuodeweixianshigu。diaocheweixiuzhejiushiqizhongjidelingweibaohuzuoyong。

　　(3)一台10 t雙梁橋式起重機
，其電源

、anquanmenjicaozongshoubingweizhidouzhengchang，dananqidongdianniubunengqidong。weixiurenyuandaoxianchangjianzha，qiangxingduizhujiechuqiqidong
，yunxingzhengchang。danzaiantingzhianniushijiechuqibunengduankai，eranqidonganniushijiechuqiqueduankaile。diaochexiulizaiantingzhianniu，zhujiechuqiqidongzhengchang，shuomingqidonganniuhetingzhianniujiefanle。zhejiushiweixiurenyuanmeiyoujiaodaiqingchusuozaochengdejiaguzhang。

　　(4)一台10 t雙梁式起重機，起吊能力下降，隻能吊起5 t多的重物。經幾次維修都認為是電氣部分老化造成的。但檢查電氣部分中，從電源的進戶到控製器，線徑大小符合標準；各接觸器觸點0t重物正常。

　　duiciguzhangxianxiang，yibanjianxiujingyanduozaidianqibufen，ruxianjingbugou

，zhuchudianjiechubuhao
，dianzuqijiexianyouwudengdouhuizaochengqidiaonenglijiangdi，suoyiduocijianxiudouzaidianqibufenzheshou
，danzhegejiaguzhangbeidinghualunfanghuzhaosuozhedang
，shijianxiuzoulewanlu。diaochexiulizheyeshuoming，qizhongshebeishijidianyitide
，dianqibufenyujixiebufenshibukefende

，zhiyaoxixinjianzha
，quanmianguancha，yixiejiaguzhangshinengshibie。