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下載手機APP bizhezaiduiqiaomenshiqizhongjidingqijianyanguochengzhong，faxiandabufenqiyedeqiaomenshiqizhongjiyunxingjigoudezhidongqibushishilingjiushizhidongqitiaozhengyaoqiubuguifan。bufengongchangdexingcheweixiurenyuanzaiduiqishengjigouheyunxingjigouzhidongqidetiaozhengguochengzhong，wangwangzhizhongshileqishengjigouzhidongqidezhongyaoxing，erhushileyunxingjigouzhidongqidetiaozheng，zhishiyixingchesijidecaozuoyaoqiupingjingyanlaitiaozheng，yizhiyuzhidongqibaozhahuojinhuosong，shenzhirangzhidongqibuqizuoyong，ershikaofanjiezhidonghuozishenyunxingdemocazulilaishixingchetingzhiyunxing。shubuzhizhejiangduianquanshengchangouchengzhongdadeanquanyinhuan。
因為製動器是保證起重機安全正常工作的重要部件之一，直接影響各機構運動的準確性和可靠性,它的工作正常與否直接影響到人身和設備的安全，所以製動器必須經常按標準進行調整。
起升機構製動器的製動力矩應保證支持住額定起重量的1.25~1.75倍，吊起額定載荷時，允許下滑距離S：
S≤ (1/80～1/100)υ起（米）
υ起 ——吊鉤的額定運行速度（米/分）
運行機構製動器允許製動距離：
υ²行
S ≤ （米）
4000
υ行——大車（或小車）的額定運行速度（米/分）
由於橋式起重機是以間歇、重複的工作方式，通過起重吊鉤或其他吊具起升、下降，或升降與運移物料的機械設備。起動、製zhi動dong動dong作zuo頻pin繁fan，製zhi動dong閘zha皮pi磨mo損sun嚴yan重zhong，更geng換huan不bu及ji時shi或huo製zhi動dong器qi主zhu彈dan簧huang的de壓ya縮suo量liang過guo小xiao會hui使shi製zhi動dong力li矩ju變bian小xiao，同tong時shi在zai調tiao整zheng過guo程cheng中zhong，製zhi動dong閘zha瓦wa張zhang開kai時shi與yu製zhi動dong輪lun間jian隙xi不bu適shi合he，都dou會hui造zao成cheng：
① 當(dang)大(da)車(che)車(che)輪(lun)分(fen)別(bie)驅(qu)動(dong)時(shi)，兩(liang)端(duan)製(zhi)動(dong)不(bu)均(jun)對(dui)大(da)車(che)運(yun)行(xing)機(ji)構(gou)在(zai)起(qi)動(dong)和(he)製(zhi)動(dong)時(shi)兩(liang)端(duan)不(bu)同(tong)步(bu)車(che)身(shen)扭(niu)擺(bai)，發(fa)生(sheng)啃(ken)軌(gui)現(xian)象(xiang)，加(jia)劇(ju)軌(gui)道(dao)和(he)車(che)輪(lun)輪(lun)緣(yuan)的(de)磨(mo)損(sun)，減(jian)少(shao)使(shi)用(yong)壽(shou)命(ming)。
② 大車（或小車）由於起動、zhidongshijianjiaokuai，tangruozhidongjulitiaozhengguoduan，diaogoujibeidiaowujianyouyuguanxingzuoyongchanshengxiangyingdefudubaidong，congerwufaxunsudizhunquedipingwendiluodaoyingtingfangdeweizhishang，ruguobaidongdefuduguodayehuifashengtuogouhuopengzhuangshigu。
③ 倘若製動距離調整過長或製動器失靈都會對大車（或小車）的行程限位器（安全尺的正確安裝）和(he)端(duan)部(bu)止(zhi)擋(dang)產(chan)生(sheng)影(ying)響(xiang)。眾(zhong)所(suo)周(zhou)知(zhi)，行(xing)程(cheng)限(xian)位(wei)器(qi)和(he)端(duan)部(bu)止(zhi)擋(dang)是(shi)橋(qiao)式(shi)起(qi)重(zhong)機(ji)的(de)安(an)全(quan)裝(zhuang)置(zhi)，是(shi)為(wei)了(le)防(fang)止(zhi)司(si)機(ji)誤(wu)操(cao)作(zuo)，使(shi)行(xing)車(che)運(yun)行(xing)到(dao)軌(gui)道(dao)極(ji)限(xian)位(wei)置(zhi)時(shi)仍(reng)未(wei)停(ting)車(che)出(chu)現(xian)意(yi)外(wai)事(shi)故(gu)而(er)設(she)置(zhi)的(de)。其(qi)中(zhong)安(an)全(quan)尺(chi)的(de)安(an)裝(zhuang)長(chang)度(du)也(ye)是(shi)依(yi)據(ju)製(zhi)動(dong)距(ju)離(li)來(lai)計(ji)算(suan)的(de)。當(dang)行(xing)車(che)運(yun)行(xing)到(dao)極(ji)限(xian)位(wei)置(zhi)時(shi)，大(da)車(che)行(xing)程(cheng)開(kai)關(guan)的(de)滾(gun)輪(lun)與(yu)安(an)全(quan)尺(chi)相(xiang)接(jie)觸(chu)，使(shi)開(kai)關(guan)動(dong)作(zuo)，切(qie)斷(duan)運(yun)行(xing)機(ji)構(gou)的(de)電(dian)動(dong)機(ji)電(dian)源(yuan)，製(zhi)動(dong)器(qi)抱(bao)閘(zha)使(shi)其(qi)停(ting)止(zhi)運(yun)行(xing)（還未碰到端部止擋），qidaoanquanbaohuzuoyong。ruguozhidongqidezhidongjuliguodahuoshiling，jiuhuizaochengjishidianjiyijingduandian，xingcheyebunenghenkuaiditingxialai，ershiyiqizhongjidezishenzhiliangchanshengshuipingguanxinglijixuyunxingzhidaozhuangshangduanbuzhidangweizhi，congershixingchengxianweiqishiqubaohuzuoyong，tongshizhuangjiliyehuitongguoduanbuzhidangzuoyongyuchangfangdechengzaijiegou，shichangfangjiegouzaodaobutongchengdudesunhuai。
因(yin)此(ci)起(qi)升(sheng)機(ji)構(gou)和(he)運(yun)行(xing)機(ji)構(gou)的(de)製(zhi)動(dong)器(qi)應(ying)定(ding)期(qi)檢(jian)查(zha)規(gui)範(fan)調(tiao)整(zheng)主(zhu)彈(dan)簧(huang)壓(ya)縮(suo)量(liang)，閘(zha)瓦(wa)打(da)開(kai)時(shi)與(yu)製(zhi)動(dong)輪(lun)的(de)兩(liang)邊(bian)間(jian)隙(xi)應(ying)均(jun)等(deng)且(qie)間(jian)隙(xi)不(bu)超(chao)標(biao)，檢(jian)查(zha)閘(zha)皮(pi)磨(mo)損(sun)情(qing)況(kuang)、製動輪和各軸銷及轉動部分回轉是否自如，以確保起重機運行可靠安全。
