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       起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)基(ji)本(ben)結(jie)(jie)(jie)構(gou)(gou)各種起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)的(de)(de)(de)用(yong)(yong)(yong)途不同,構(gou)(gou)造上(shang)有(you)很大差異,但(dan)都具有(you)完結(jie)(jie)(jie)升(sheng)降這一(yi)基(ji)本(ben)動(dong)(dong)(dong)作(zuo)的(de)(de)(de)起(qi)(qi)升(sheng)結(jie)(jie)(jie)構(gou)(gou)。有(you)些起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)還(huan)具有(you)運(yun)(yun)(yun)(yun)(yun)行結(jie)(jie)(jie)構(gou)(gou)、變幅結(jie)(jie)(jie)構(gou)(gou)、反轉結(jie)(jie)(jie)構(gou)(gou)或其他(ta)專(zhuan)用(yong)(yong)(yong)的(de)(de)(de)作(zuo)業結(jie)(jie)(jie)構(gou)(gou)。物(wu)(wu)料(liao)(liao)(liao)(liao)能夠由(you)鋼(gang)絲繩或起(qi)(qi)重(zhong)(zhong)(zhong)鏈條(tiao)等(deng)撓性件(jian)吊(diao)(diao)掛著(zhu)升(sheng)降,也可(ke)由(you)螺(luo)桿或其他(ta)剛性件(jian)頂舉(ju)。起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)是(shi)(shi)一(yi)種空間運(yun)(yun)(yun)(yun)(yun)送(song)(song)設備(bei),首(shou)要(yao)作(zuo)用(yong)(yong)(yong)是(shi)(shi)完結(jie)(jie)(jie)重(zhong)(zhong)(zhong)物(wu)(wu)的(de)(de)(de)位移。它能夠減輕(qing)勞動(dong)(dong)(dong)強度(du),提高勞動(dong)(dong)(dong)出(chu)產率。起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)是(shi)(shi)現代化(hua)出(chu)產不行短少(shao)的(de)(de)(de)組(zu)成部分,有(you)些起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)還(huan)能在出(chu)產過(guo)(guo)程(cheng)(cheng)中(zhong)進行某些特別(bie)的(de)(de)(de)工(gong)藝操作(zuo),使(shi)出(chu)產過(guo)(guo)程(cheng)(cheng)完結(jie)(jie)(jie)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)化(hua)和(he)自動(dong)(dong)(dong)化(hua)。起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)協助(zhu)人類在降服天(tian)然改造天(tian)然的(de)(de)(de)活動(dong)(dong)(dong)中(zhong),完結(jie)(jie)(jie)了曩昔無(wu)法完結(jie)(jie)(jie)的(de)(de)(de)大件(jian)物(wu)(wu)件(jian)的(de)(de)(de)吊(diao)(diao)裝(zhuang)(zhuang)(zhuang)(zhuang)和(he)移動(dong)(dong)(dong),如重(zhong)(zhong)(zhong)型船只的(de)(de)(de)分段拼裝(zhuang)(zhuang)(zhuang)(zhuang),化(hua)工(gong)反應(ying)塔的(de)(de)(de)全體(ti)吊(diao)(diao)裝(zhuang)(zhuang)(zhuang)(zhuang),體(ti)育場(chang)館鋼(gang)屋架(jia)的(de)(de)(de)全體(ti)吊(diao)(diao)裝(zhuang)(zhuang)(zhuang)(zhuang)等(deng)。運(yun)(yun)(yun)(yun)(yun)用(yong)(yong)(yong)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)有(you)巨大的(de)(de)(de)市場(chang)需(xu)求和(he)杰出(chu)的(de)(de)(de)經濟性,重(zhong)(zhong)(zhong)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)制造職(zhi)業發展(zhan)迅(xun)速,年均增(zeng)長(chang)約20%。由(you)于(yu)從原材料(liao)(liao)(liao)(liao)到產品的(de)(de)(de)出(chu)產過(guo)(guo)程(cheng)(cheng)中(zhong),利(li)用(yong)(yong)(yong)起(qi)(qi)重(zhong)(zhong)(zhong)運(yun)(yun)(yun)(yun)(yun)送(song)(song)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)對物(wu)(wu)料(liao)(liao)(liao)(liao)的(de)(de)(de)搬(ban)(ban)(ban)運(yun)(yun)(yun)(yun)(yun)量(liang)(liang)常常是(shi)(shi)產品重(zhong)(zhong)(zhong)量(liang)(liang)的(de)(de)(de)幾十(shi)倍,乃至數(shu)百倍。據統計,機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)加(jia)(jia)工(gong)職(zhi)業每出(chu)產1噸(dun)產品,在加(jia)(jia)工(gong)過(guo)(guo)程(cheng)(cheng)中(zhong)要(yao)裝(zhuang)(zhuang)(zhuang)(zhuang)卸、搬(ban)(ban)(ban)運(yun)(yun)(yun)(yun)(yun)50噸(dun)物(wu)(wu)料(liao)(liao)(liao)(liao),在鑄造過(guo)(guo)程(cheng)(cheng)中(zhong)要(yao)搬(ban)(ban)(ban)運(yun)(yun)(yun)(yun)(yun)80噸(dun)物(wu)(wu)料(liao)(liao)(liao)(liao)。在冶金職(zhi)業每冶煉1噸(dun)鋼(gang),需(xu)求搬(ban)(ban)(ban)運(yun)(yun)(yun)(yun)(yun)9噸(dun)質料(liao)(liao)(liao)(liao),車間之間的(de)(de)(de)轉運(yun)(yun)(yun)(yun)(yun)量(liang)(liang)為63噸(dun),車間內(nei)部的(de)(de)(de)轉運(yun)(yun)(yun)(yun)(yun)量(liang)(liang)達160噸(dun)。 起(qi)(qi)重(zhong)(zhong)(zhong)運(yun)(yun)(yun)(yun)(yun)送(song)(song)費(fei)(fei)(fei)(fei)用(yong)(yong)(yong)在傳統職(zhi)業中(zhong)也占(zhan)有(you)較高份額(e),如機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie)制造業用(yong)(yong)(yong)于(yu)起(qi)(qi)重(zhong)(zhong)(zhong)運(yun)(yun)(yun)(yun)(yun)送(song)(song)的(de)(de)(de)費(fei)(fei)(fei)(fei)用(yong)(yong)(yong)占(zhan)悉數(shu)出(chu)產費(fei)(fei)(fei)(fei)用(yong)(yong)(yong)的(de)(de)(de)15~30%,冶金職(zhi)業用(yong)(yong)(yong)于(yu)起(qi)(qi)重(zhong)(zhong)(zhong)運(yun)(yun)(yun)(yun)(yun)送(song)(song)的(de)(de)(de)費(fei)(fei)(fei)(fei)用(yong)(yong)(yong)占(zhan)悉數(shu)出(chu)產費(fei)(fei)(fei)(fei)用(yong)(yong)(yong)的(de)(de)(de)35~45%,交通(tong)運(yun)(yun)(yun)(yun)(yun)送(song)(song)職(zhi)業貨物(wu)(wu)的(de)(de)(de)裝(zhuang)(zhuang)(zhuang)(zhuang)卸儲存(cun)都要(yao)依托起(qi)(qi)重(zhong)(zhong)(zhong)運(yun)(yun)(yun)(yun)(yun)送(song)(song)機(ji)(ji)械(xie)(xie)(xie)(xie)(xie)(xie),據統計海運(yun)(yun)(yun)(yun)(yun)費(fei)(fei)(fei)(fei)用(yong)(yong)(yong)中(zhong)裝(zhuang)(zhuang)(zhuang)(zhuang)卸費(fei)(fei)(fei)(fei)用(yong)(yong)(yong)占(zhan)總(zong)運(yun)(yun)(yun)(yun)(yun)費(fei)(fei)(fei)(fei)的(de)(de)(de)30~60%。



起重機


起(qi)重(zhong)機械按結構不同可分為輕小型起(qi)重(zhong)設備


       車用(yong)(yong)起重(zhong)(zhong)(zhong)機(ji)(ji)(ji)械(xie)備(bei)(bei)(bei)、升降(jiang)(jiang)機(ji)(ji)(ji)、起重(zhong)(zhong)(zhong)機(ji)(ji)(ji)和架(jia)(jia)空(kong)單(dan)(dan)軌(gui)體(ti)系等(deng)幾類(lei)。輕小型(xing)起重(zhong)(zhong)(zhong)設(she)備(bei)(bei)(bei)首(shou)要包含起重(zhong)(zhong)(zhong)滑車、吊(diao)具(ju)、千斤頂(ding)、手動(dong)葫蘆(lu)、電動(dong)葫蘆(lu)和一般絞(jiao)車,大多體(ti)積小、重(zhong)(zhong)(zhong)量輕、運(yun)用(yong)(yong)方便。除電動(dong)葫蘆(lu)和絞(jiao)車外(wai)(wai),絕大多數用(yong)(yong)人(ren)力驅(qu)動(dong),適用(yong)(yong)于(yu)作(zuo)業不深重(zhong)(zhong)(zhong)的(de)(de)(de)(de)場合。它們能(neng)(neng)夠單(dan)(dan)獨運(yun)用(yong)(yong),有的(de)(de)(de)(de)也可作(zuo)為起重(zhong)(zhong)(zhong)機(ji)(ji)(ji)的(de)(de)(de)(de)起升結構。有些輕小型(xing)起重(zhong)(zhong)(zhong)設(she)備(bei)(bei)(bei)的(de)(de)(de)(de)起重(zhong)(zhong)(zhong)才能(neng)(neng)很大,如(ru)液壓千斤頂(ding)的(de)(de)(de)(de)起重(zhong)(zhong)(zhong)量已達 750噸。升降(jiang)(jiang)機(ji)(ji)(ji)首(shou)要作(zuo)筆直(zhi)或近于(yu)筆直(zhi)的(de)(de)(de)(de)升降(jiang)(jiang)運(yun)動(dong),具(ju)有固定(ding)的(de)(de)(de)(de)升降(jiang)(jiang)道路,包含電梯(ti)、升降(jiang)(jiang)臺(tai)、礦井提(ti)高機(ji)(ji)(ji)和料(liao)(liao)斗升降(jiang)(jiang)機(ji)(ji)(ji)等(deng)。起重(zhong)(zhong)(zhong)機(ji)(ji)(ji)是在一定(ding)范圍內筆直(zhi)提(ti)高并水平搬(ban)運(yun)重(zhong)(zhong)(zhong)物的(de)(de)(de)(de)多動(dong)作(zuo)起重(zhong)(zhong)(zhong)機(ji)(ji)(ji)械(xie)。架(jia)(jia)空(kong)單(dan)(dan)軌(gui)體(ti)系具(ju)有剛(gang)性吊(diao)掛軌(gui)道所構成的(de)(de)(de)(de)線路,能(neng)(neng)把物料(liao)(liao)運(yun)送到廠(chang)房各部分,也可擴展到廠(chang)房的(de)(de)(de)(de)外(wai)(wai)部。

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