jixieanquanshizhicongrendeanquanxuyaochufa,zaishiyongjixiedequanguochengdegezhongzhuangtaixia,dadaoshirendeshenxinmianshouwaijieyinsuweihaidecunzaizhuangtaihebaozhangtiaojian。jixiedeanquanxingshizhijiqizaianyudingshiyongtiaojianxia,zhixingqiyudinggongneng,huozaiyunshu、安裝、調整、維修、chaixieyijibaofeichulishibuchanshengsunshanghuoweihaijiankangdenengli。jixieanquanshiyouzuchengjixiedegebufenjizhengjideanquanzhuangtailaibaozheng,shiyoushiyongjixiederendeanquanxingweilaibaozheng,shiyoujixieherendehexieguanxilaibaozhengde,jianeryanzhi,jiushiyaoyonganquanxitongdeguandianhefangfa,congjiwuhewurenguanxizhesanfangmianlaijiejuejixiexitongdeanquanwenti。
tongguoyigegaochuzuoyelizi,keshuominganquanxitonggeyaosudeguanxi,yijianquanxitongyujixiexitongdeguanxi。liru,weilebianyuduiyitaidaxingjiqidekongzhi,xuyaorendengshanggaochudecaozuotaijinxingcaozuo。ruguojinjincongwanchengjixiexitongdeshengchanmudejiaodulaikan,caozuozhekeyicongdimiantongguotizidengshangpingtaiqucaozongjiqi,shixianjiqideyingyonggongneng,zhejiuzugoule。danshiconganquandejiaodukan,zhezhong"物"的狀態,對人來說,顯然是不安全的。隻要有作業高度存在,人就有可能因為心理、生理或其他主觀因素造成動作失誤,因而發生墜落事故。如果存在某種客觀危險因素(如溫度高、自然光線不足、立足平麵很小,使操作者無法維持正常姿勢等),那(na)麼(me)發(fa)生(sheng)墜(zhui)落(luo)事(shi)故(gu)的(de)可(ke)能(neng)性(xing)就(jiu)會(hui)增(zeng)大(da),而(er)且(qie)離(li)墜(zhui)落(luo)基(ji)麵(mian)越(yue)遠(yuan),墜(zhui)落(luo)造(zao)成(cheng)的(de)傷(shang)害(hai)就(jiu)越(yue)嚴(yan)重(zhong)。人(ren)的(de)這(zhe)種(zhong)存(cun)在(zai)狀(zhuang)態(tai)決(jue)定(ding)了(le)要(yao)實(shi)現(xian)安(an)全(quan)必(bi)須(xu)協(xie)調(tiao)物(wu)人(ren)關(guan)係(xi),通(tong)過(guo)一(yi)係(xi)列(lie)的(de)安(an)全(quan)技(ji)術(shu)措(cuo)施(shi)來(lai)解(jie)決(jue)。例(li)如(ru):在墜落臨邊加設欄杆,將人與危險隔離;均勻梯級,防止人攀登時腳踏空;在zai比bi較jiao高gao的de梯ti子zi上shang設she置zhi安an全quan護hu圈quan,解jie決jue人ren仰yang翻fan墜zhui地di的de保bao護hu等deng。這zhe些xie安an全quan設she施shi的de結jie構gou形xing式shi和he尺chi寸cun是shi依yi據ju人ren體ti測ce量liang參can數shu和he生sheng物wu力li學xue數shu據ju確que定ding的de,當dang保bao護hu對dui象xiang變bian化hua,防fang護hu措cuo施shi相xiang應ying調tiao整zheng(例如,在供兒童使用設施上,則采用加密欄杆或全封閉的防護);當材料性能提高或有更高性能的材料替代,安全設施的結構形式可以發生相應的變化;若采用機器人取代人去操作,則完全沒必要再設防護。情況發生改變,人機關係就要做相應調整。
這(zhe)些(xie)安(an)全(quan)設(she)施(shi)與(yu)增(zeng)加(jia)機(ji)械(xie)使(shi)用(yong)功(gong)能(neng)或(huo)擴(kuo)大(da)服(fu)務(wu)範(fan)圍(wei)沒(mei)有(you)關(guan)係(xi),對(dui)機(ji)械(xie)完(wan)成(cheng)預(yu)定(ding)功(gong)能(neng)的(de)受(shou)力(li)和(he)過(guo)程(cheng)要(yao)求(qiu)沒(mei)有(you)作(zuo)用(yong),僅(jin)僅(jin)是(shi)為(wei)了(le)保(bao)護(hu)人(ren)的(de)安(an)全(quan)而(er)設(she)。這(zhe)些(xie)原(yuan)則(ze)對(dui)高(gao)處(chu)作(zuo)業(ye)的(de)安(an)全(quan)有(you)普(pu)遍(bian)適(shi)用(yong)性(xing),不(bu)管(guan)是(shi)建(jian)築(zhu)業(ye),還(hai)是(shi)機(ji)械(xie)加(jia)工(gong)業(ye),或(huo)是(shi)其(qi)他(ta)什(shen)麼(me)服(fu)務(wu)行(xing)業(ye)。由(you)於(yu)在(zai)機(ji)械(xie)的(de)使(shi)用(yong)階(jie)段(duan)再(zai)追(zhui)加(jia)安(an)全(quan)設(she)施(shi)有(you)很(hen)大(da)的(de)隨(sui)意(yi)性(xing),而(er)且(qie)難(nan)以(yi)保(bao)證(zheng)質(zhi)量(liang),人(ren)們(men)提(ti)出(chu)應(ying)該(gai)在(zai)機(ji)械(xie)的(de)設(she)計(ji)階(jie)段(duan)來(lai)解(jie)決(jue)。由(you)於(yu)使(shi)用(yong)中(zhong)的(de)磨(mo)損(sun)和(he)消(xiao)耗(hao),隨(sui)著(zhe)時(shi)間(jian)的(de)推(tui)移(yi),安(an)全(quan)設(she)施(shi)也(ye)會(hui)破(po)損(sun)、shixiao,yincixuyaojingchangjianzhaqizhuangtai,ducujishibaofeibinggengxin,erqiehaiyaojiaoyurenruhezhengqueshiyong,bunengsuiyipohuaihuochengnengpanyuelangandeng。zaizongjielerenyuanconggaochuzhuiluodejiaoxunhecaiyonganquanfanghuchenggongjingyandejichushang,zhujianxingchengzhefangmiandefaguihebiaozhunquguifananquansheshidejishuyaoqiuherenyuanshiyongdexingwei,anquanbiaozhunshijuyouqiangzhixing、一定法律功效並提供安全管理的依據,是用來協調人機關係的規定。這樣,從物的安全狀態、人的安全行為和協調人機關係三方麵,解決了高處作業的安全問題。
機械安全的任務就是以人的安全為出發點,用安全係統的觀點和方法,以機械係統在壽命期間全過程的安全問題為對象,通過立法監察、監督檢查、督促指導、培訓教育、建議谘詢等來實現機械係統的安全。
機械的安全狀態是實現機械係統安全的基本前提和物質基礎。本課件的重點是探討如何從物(機)的安全狀態來保障人的安全,側重於機械安全技術方麵的有關知識。其討論的重點是:如何識別由機械產生的危險,如何實現機械安全的綜合安全技術及對機械的安全檢查等問題。
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