產品說明：
（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：duiyubianfuqizhongji，yidingdefuduzhiyunxuqidiaoyidingdediaozhong，ruguochaozhong，qizhongshijiuyouqingfandeweixian。lijuxianzhiqijiushigenjuzhegetedianyanzhichudeyizhongbaohuzhuangzhi。zaimouyidingfudu，ruguodiaowuchaochuleqixiangyingdezhongliang，dianlujiubeiqieduan，shitishengbunengjinxing

，baozhengleqizhongjidewending。lijuxianzhiqiyoujixieshi
、電子式和複合式三種。 　　（3）高度限製器：也稱吊鉤高度限位器．一般都裝在起重臂的頭部，當吊鉤滑升到極限位置，便托起杠杆。壓下限位開關，切斷電路停車，再合閘時
，吊鉤隻能下降。 　　（4）行程限製器：fangzhiqizhongjifashengzhuangchehuoxianzhizaiyidingfanweineixingshidebaoxianzhuangzhi。tayibananzhuangzaizhudongtaicheneice，zhuyaoshianzhuangyigekeyibodongbanbadexingchengkaiguan。lingzaiguidaodeduantou（在運行限定的位置）安(an)裝(zhuang)一(yi)個(ge)固(gu)定(ding)的(de)極(ji)限(xian)位(wei)置(zhi)擋(dang)板(ban)，當(dang)塔(ta)吊(diao)運(yun)行(xing)到(dao)這(zhe)個(ge)位(wei)置(zhi)時(shi)，極(ji)限(xian)擋(dang)板(ban)即(ji)碰(peng)觸(chu)行(xing)程(cheng)開(kai)關(guan)的(de)扳(ban)把(ba)，切(qie)斷(duan)控(kong)製(zhi)行(xing)走(zou)的(de)電(dian)源(yuan)，再(zai)合(he)閘(zha)時(shi)塔(ta)吊(diao)隻(zhi)能(neng)向(xiang)相(xiang)反(fan)方(fang)向(xiang)運(yun)行(xing)。 　　（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