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起重機用製動器由製動瓦塊、製動臂、zhidonglunhesongzhaqizucheng。changbazhidonglunzuoweilianzhouqideyigebantianzhuangzaijigoudezhuandongzhoushang，duichengbuzhidezhidongbiyujijiagudingbufenjiaolian，neicefuyoumocacailiaodelianggezhidongwakuaifenbiehuodongjiaojiezailiangzhidongbishang，zaisongzhaqishangzhalidezuoyongxia，chengduidezhidongwakuaizaijingxiangbaojinzhidonglunerchanshengzhidongliju。
在(zai)接(jie)通(tong)電(dian)源(yuan)時(shi)，電(dian)磁(ci)鬆(song)閘(zha)器(qi)的(de)鐵(tie)心(xin)吸(xi)引(yin)銜(xian)鐵(tie)壓(ya)向(xiang)推(tui)杆(gan)，推(tui)杆(gan)推(tui)動(dong)左(zuo)製(zhi)動(dong)臂(bi)向(xiang)左(zuo)擺(bai)，主(zhu)彈(dan)簧(huang)被(bei)壓(ya)縮(suo)。同(tong)時(shi)，解(jie)除(chu)壓(ya)力(li)的(de)輔(fu)助(zhu)彈(dan)簧(huang)將(jiang)右(you)製(zhi)動(dong)臂(bi)向(xiang)右(you)推(tui)，兩(liang)製(zhi)動(dong)臂(bi)帶(dai)動(dong)製(zhi)動(dong)瓦(wa)塊(kuai)與(yu)製(zhi)動(dong)輪(lun)分(fen)離(li)，機(ji)構(gou)可(ke)以(yi)運(yun)動(dong)。當(dang)切(qie)斷(duan)電(dian)源(yuan)時(shi)，鐵(tie)心(xin)失(shi)去(qu)磁(ci)性(xing)，對(dui)銜(xian)鐵(tie)的(de)吸(xi)引(yin)力(li)消(xiao)除(chu)，因(yin)而(er)解(jie)除(chu)銜(xian)鐵(tie)對(dui)推(tui)杆(gan)的(de)壓(ya)力(li)，在(zai)主(zhu)彈(dan)簧(huang)張(zhang)力(li)的(de)作(zuo)用(yong)下(xia)，兩(liang)製(zhi)動(dong)臂(bi)一(yi)起(qi)向(xiang)內(nei)收(shou)擺(bai)，帶(dai)動(dong)製(zhi)動(dong)瓦(wa)塊(kuai)抱(bao)緊(jin)製(zhi)動(dong)輪(lun)產(chan)生(sheng)製(zhi)動(dong)力(li)矩(ju)；同tong時shi，輔fu助zhu彈dan簧huang被bei壓ya縮suo。製zhi動dong力li矩ju由you主zhu彈dan簧huang力li決jue定ding，輔fu助zhu彈dan簧huang保bao證zheng鬆song間jian間jian隙xi。塊kuai式shi製zhi動dong器qi的de製zhi動dong性xing能neng在zai很hen大da程cheng度du上shang是shi由you鬆song閘zha器qi的de性xing能neng決jue定ding的de。
