起重机是指在一定(ding)范(fan)围内垂(chui)直提(ti)升和(he)水平搬运重(zhong)(zhong)物的多动作起重(zhong)(zhong)机(ji)械。又称天车，航吊(diao)，吊(diao)车。

轮胎(tai)起重机(ji)的(de)主要特(te)点是(shi)：其行驶驾驶室(shi)与起重操(cao)纵室(shi)合二(er)为一、是(shi)由履(lv)(lv)带(dai)(dai)起重机(ji)（履(lv)(lv)带(dai)(dai)吊(diao)）演变而成(cheng)，将(jiang)行走机(ji)构的(de)履(lv)(lv)带(dai)(dai)和(he)行走支(zhi)架部(bu)分变成(cheng)有轮胎(tai)的(de)底(di)盘，克服了(le)履(lv)(lv)带(dai)(dai)起重机(ji)（履(lv)(lv)带(dai)(dai)吊(diao)）履(lv)(lv)带(dai)(dai)板对路面造成(cheng)破(po)坏的(de)缺点，属于物料(liao)搬运(yun)机(ji)械。

那么起重机(ji)在什么情况(kuang)下是(shi)不(bu)能操作(zuo)的(de)呢？

起重(zhong)(zhong)机(ji)(ji)是现(xian)在很(hen)多(duo)机(ji)(ji)械工(gong)程(cheng)中(zhong)(zhong)(zhong)(zhong)应用的(de)(de)非常(chang)(chang)多(duo)的(de)(de)一(yi)(yi)(yi)款(kuan)大型(xing)的(de)(de)机(ji)(ji)械设备，它(ta)(ta)(ta)能帮助J9平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)-J9（中(zhong)(zhong)(zhong)(zhong)国(guo)）一(yi)(yi)(yi)站(zhan)式(shi)服(fu)(fu)务平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)完成很(hen)多(duo)J9平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)-J9（中(zhong)(zhong)(zhong)(zhong)国(guo)）一(yi)(yi)(yi)站(zhan)式(shi)服(fu)(fu)务平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)完成不(bu)(bu)了的(de)(de)工(gong)作(zuo)，为J9平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)-J9（中(zhong)(zhong)(zhong)(zhong)国(guo)）一(yi)(yi)(yi)站(zhan)式(shi)服(fu)(fu)务平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)减轻压(ya)力。它(ta)(ta)(ta)的(de)(de)出(chu)现(xian)给J9平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)-J9（中(zhong)(zhong)(zhong)(zhong)国(guo)）一(yi)(yi)(yi)站(zhan)式(shi)服(fu)(fu)务平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)机(ji)(ji)械工(gong)程(cheng)行(xing)业(ye)带来了非常(chang)(chang)大得便利，在这个这类(lei)行(xing)业(ye)中(zhong)(zhong)(zhong)(zhong)有着(zhe)很(hen)重(zhong)(zhong)要的(de)(de)位置。在操(cao)作(zuo)时，J9平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)-J9（中(zhong)(zhong)(zhong)(zhong)国(guo)）一(yi)(yi)(yi)站(zhan)式(shi)服(fu)(fu)务平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)需要严格(ge)的(de)(de)按照(zhao)它(ta)(ta)(ta)的(de)(de)标准(zhun)去(qu)(qu)进行(xing)，其实在很(hen)多(duo)情况(kuang)下(xia)，J9平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)-J9（中(zhong)(zhong)(zhong)(zhong)国(guo)）一(yi)(yi)(yi)站(zhan)式(shi)服(fu)(fu)务平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)不(bu)(bu)能去(qu)(qu)对起重(zhong)(zhong)机(ji)(ji)进行(xing)操(cao)作(zuo)，否则(ze)会发生不(bu)(bu)好的(de)(de)情况(kuang)，下(xia)面J9平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)-J9（中(zhong)(zhong)(zhong)(zhong)国(guo)）一(yi)(yi)(yi)站(zhan)式(shi)服(fu)(fu)务平(ping)(ping)(ping)(ping)台(tai)(tai)(tai)就去(qu)(qu)了解一(yi)(yi)(yi)下(xia)在什么情况(kuang)下(xia)不(bu)(bu)能操(cao)作(zuo)它(ta)(ta)(ta)。

(1)超载(zai)或(huo)物体重(zhong)(zhong)(zhong)量不(bu)(bu)(bu)清(qing)时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(2)信(xin)号(hao)不(bu)(bu)(bu)明(ming)确时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(3)***、吊(diao)挂不(bu)(bu)(bu)牢或(huo)不(bu)(bu)(bu)平(ping)衡可能引起滑动时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(4)被吊(diao)物肯人或(huo)浮(fu)置(zhi)物时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(5)结构(gou)或(huo)零(ling)部件有(you)(you)影响(xiang)工作缺陷(xian)或(huo)损伤，如(ru)制动器或(huo)装(zhuang)置(zhi)失灵、吊(diao)钩螺母结构(gou)装(zhuang)置(zhi)损坏(huai)、钢丝(si)绳损伤达到报废标准时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(6)遇有(you)(you)拉(la)力(li)不(bu)(bu)(bu)清(qing)的埋置(zhi)物时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(7)斜拉(la)重(zhong)(zhong)(zhong)物时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(8)工作场地(di)昏(hun)暗，无法看清(qing)场地(di)、被吊(diao)物情况和(he)指(zhi)挥(hui)信(xin)号(hao)时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(9)重(zhong)(zhong)(zhong)物棱角处(chu)于***钢丝(si)绳之间未加衬垫时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao);(10)钢水包装(zhuang)得过满(man)时(shi)(shi)(shi)不(bu)(bu)(bu)吊(diao)。

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