(1)起重量限製器
也稱超載限位器、是shi一yi種zhong能neng使shi起qi重zhong機ji不bu致zhi超chao負fu荷he運yun行xing的de保bao險xian裝zhuang置zhi,當dang吊diao重zhong超chao過guo額e定ding起qi重zhong量liang時shi,它ta能neng自zi動dong地di切qie斷duan提ti升sheng機ji構gou的de電dian源yuan停ting車che或huo發fa出chu警jing報bao。起qi重zhong限xian製zhi器qi有you機ji械xie式shi和he電dian子zi式shi兩liang種zhong。
(2)力矩限製器
對(dui)於(yu)變(bian)幅(fu)起(qi)重(zhong)機(ji),一(yi)定(ding)的(de)幅(fu)度(du)隻(zhi)允(yun)許(xu)起(qi)吊(diao)一(yi)定(ding)的(de)吊(diao)重(zhong),如(ru)果(guo)超(chao)重(zhong),起(qi)重(zhong)視(shi)就(jiu)有(you)傾(qing)翻(fan)的(de)危(wei)險(xian)。力(li)矩(ju)限(xian)製(zhi)器(qi)就(jiu)是(shi)根(gen)據(ju)這(zhe)個(ge)特(te)點(dian)研(yan)製(zhi)出(chu)的(de)一(yi)種(zhong)保(bao)護(hu)裝(zhuang)置(zhi)。在(zai)某(mou)一(yi)定(ding)幅(fu)度(du),如(ru)果(guo)吊(diao)物(wu)超(chao)出(chu)了(le)其(qi)相(xiang)應(ying)的(de)重(zhong)量(liang),電(dian)路(lu)就(jiu)被(bei)切(qie)斷(duan),使(shi)提(ti)升(sheng)不(bu)能(neng)進(jin)行(xing),保(bao)證(zheng)了(le)起(qi)重(zhong)機(ji)的(de)穩(wen)定(ding)。力(li)矩(ju)限(xian)製(zhi)器(qi)有(you)機(ji)械(xie)式(shi)、電子式和複合式三種。
(3)高度限製器
yechengdiaogougaoduxianweiqi。yibandouzhuangzaiqizhongbidetoubu,dangdiaogouhuashengdaojixianweizhi,biantuoqiganggan。yaxiaxianweikaiguan,qieduandianlutingche,zaihezhashi,diaogouzhinengxiajiang。
(4)行程限製器
防(fang)止(zhi)起(qi)重(zhong)機(ji)發(fa)生(sheng)撞(zhuang)車(che)或(huo)限(xian)製(zhi)在(zai)一(yi)定(ding)範(fan)圍(wei)內(nei)行(xing)駛(shi)的(de)保(bao)險(xian)裝(zhuang)置(zhi)。它(ta)一(yi)般(ban)安(an)裝(zhuang)在(zai)主(zhu)動(dong)台(tai)車(che)內(nei)側(ce),主(zhu)要(yao)是(shi)安(an)裝(zhuang)一(yi)個(ge)可(ke)以(yi)撥(bo)動(dong)扳(ban)把(ba)的(de)行(xing)程(cheng)開(kai)關(guan)。另(ling)在(zai)軌(gui)道(dao)的(de)端(duan)頭(tou)(在運行限定的位置)anzhuangyigegudingdejixianweizhidangban,dangtadiaoyunxingdaozhegeweizhishi,jixiandangbanjipengchuxingchengkaiguandebanba,qieduankongzhixingzoudedianyuan,zaihezhashitadiaozhinengxiangxiangfanfangxiangyunxing。
(5)幅度限製器
也ye稱cheng變bian幅fu限xian位wei或huo幅fu度du指zhi示shi器qi,一yi般ban的de動dong臂bi起qi重zhong機ji的de起qi重zhong臂bi上shang都dou掛gua有you一yi個ge幅fu度du指zhi示shi器qi。它ta是shi由you一yi個ge固gu定ding的de圓yuan形xing指zhi示shi盤pan,在zai盤pan的de中zhong心xin裝zhuang一yi個ge鉛qian垂chui的de活huo動dong指zhi針zhen。當dang變bian幅fu時shi,指zhi針zhen指zhi示shi出chu各ge種zhong幅fu度du下xia的de額e定ding起qi重zhong量liang。當dang臂bi杆gan運yun行xing到dao上shang下xia兩liang個ge極ji限xian位wei置zhi時shi,分fen別bie壓ya下xia限xian位wei開kai關guan,切qie斷duan主zhu控kong電dian路lu,變bian幅fu電dian機ji停ting車che,達da到dao限xian位wei的de作zuo用yong。
起重量限製、力矩限製、高度限製、行程限製、幅度限位,即塔機五限位。新一代塔機黑匣子基本都具備這五種功能,並能拓展風速檢測儀,一些黑匣子還具備塔機防碰撞係統功能。
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