半門(men)(men)式(shi)(shi)(shi)起(qi)(qi)重(zhong)(zhong)機(ji)是一(yi)種介于橋(qiao)式(shi)(shi)(shi)起(qi)(qi)重(zhong)(zhong)機(ji)和(he)(he)龍(long)門(men)(men)起(qi)(qi)重(zhong)(zhong)機(ji)之間的(de)起(qi)(qi)重(zhong)(zhong)設(she)(she)備，?其特(te)點在(zai)(zai)于只有一(yi)條支腿，?而另一(yi)端像橋(qiao)式(shi)(shi)(shi)起(qi)(qi)重(zhong)(zhong)機(ji)一(yi)樣架在(zai)(zai)廠房的(de)吊車梁上。?這種起(qi)(qi)重(zhong)(zhong)機(ji)的(de)運行軌(gui)道分為天軌(gui)（?架在(zai)(zai)廠房上的(de)）?和(he)(he)地軌(gui)（?在(zai)(zai)地面上）?。?半門(men)(men)式(shi)(shi)(shi)起(qi)(qi)重(zhong)(zhong)機(ji)的(de)起(qi)(qi)升機(ji)構(gou)(gou)、?小車運行機(ji)構(gou)(gou)和(he)(he)橋(qiao)架結(jie)構(gou)(gou)與橋(qiao)式(shi)(shi)(shi)起(qi)(qi)重(zhong)(zhong)機(ji)基本相同，?但(dan)由于其跨度較大，?運行機(ji)構(gou)(gou)大多采用分別(bie)驅(qu)動方式(shi)(shi)(shi)，?以防止(zhi)在(zai)(zai)強風(feng)作(zuo)用下滑行或翻倒，?因(yin)此裝(zhuang)有測風(feng)儀和(he)(he)夾軌(gui)器(qi)。?半門(men)(men)式(shi)(shi)(shi)起(qi)(qi)重(zhong)(zhong)機(ji)的(de)額定起(qi)(qi)重(zhong)(zhong)量通常在(zai)(zai)16噸以下，?適(shi)用于輕型和(he)(he)中型的(de)起(qi)(qi)重(zhong)(zhong)任務，?如裝(zhuang)卸貨物、?維修機(ji)器(qi)和(he)(he)設(she)(she)備等。?
半(ban)門式起(qi)(qi)重(zhong)機(ji)的操(cao)作方式主要包(bao)括手動(dong)(dong)控(kong)(kong)制(zhi)、?電(dian)(dian)動(dong)(dong)控(kong)(kong)制(zhi)和自動(dong)(dong)化控(kong)(kong)制(zhi)三(san)種。?手動(dong)(dong)控(kong)(kong)制(zhi)適用于較小(xiao)的起(qi)(qi)重(zhong)任務，?通(tong)過(guo)(guo)人工拉動(dong)(dong)繩索或(huo)鏈條(tiao)實(shi)(shi)現；?電(dian)(dian)動(dong)(dong)控(kong)(kong)制(zhi)則通(tong)過(guo)(guo)遙控(kong)(kong)器(qi)或(huo)控(kong)(kong)制(zhi)盒操(cao)作，?適用于中(zhong)型起(qi)(qi)重(zhong)任務；?自動(dong)(dong)化控(kong)(kong)制(zhi)通(tong)過(guo)(guo)計算機(ji)控(kong)(kong)制(zhi)和傳感器(qi)實(shi)(shi)現，?適用于復雜的起(qi)(qi)重(zhong)任務。?此(ci)外，?半(ban)門式起(qi)(qi)重(zhong)機(ji)的結(jie)構(gou)(gou)特點(dian)包(bao)括支(zhi)架(jia)、?懸(xuan)臂梁、?大車、?小(xiao)車、?起(qi)(qi)升機(ji)構(gou)(gou)、?電(dian)(dian)控(kong)(kong)系統(tong)等組(zu)成部(bu)分，?其中(zhong)支(zhi)架(jia)通(tong)常建立在(zai)地(di)面上，?具有足(zu)夠的強度和穩定性以確保運行(xing)安全。?懸(xuan)臂梁結(jie)構(gou)(gou)有桁架(jia)結(jie)構(gou)(gou)和梁板結(jie)構(gou)(gou)兩種，?根據起(qi)(qi)重(zhong)任務的需(xu)要進行(xing)選擇(ze)。?
半(ban)(ban)門(men)式起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)的使用(yong)環境(jing)分為室內(nei)和室外兩種(zhong)。?室內(nei)使用(yong)通常適(shi)用(yong)于(yu)工廠(chang)和車間(jian)等場景(jing)，?而室外使用(yong)則(ze)適(shi)用(yong)于(yu)碼頭、?港口等大型(xing)(xing)起(qi)(qi)重(zhong)(zhong)(zhong)任(ren)務(wu)。?根據起(qi)(qi)重(zhong)(zhong)(zhong)能力的不同(tong)，?半(ban)(ban)門(men)式起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)可以(yi)分為輕(qing)型(xing)(xing)、?中(zhong)型(xing)(xing)和重(zhong)(zhong)(zhong)型(xing)(xing)三種(zhong)，?分別適(shi)用(yong)于(yu)不同(tong)規模和強度的起(qi)(qi)重(zhong)(zhong)(zhong)任(ren)務(wu)。?輕(qing)型(xing)(xing)半(ban)(ban)門(men)式起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)起(qi)(qi)重(zhong)(zhong)(zhong)能力在數百千(qian)克到(dao)數噸(dun)(dun)之間(jian)，?中(zhong)型(xing)(xing)半(ban)(ban)門(men)式起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)則(ze)在數十噸(dun)(dun)到(dao)百余噸(dun)(dun)之間(jian)，?重(zhong)(zhong)(zhong)型(xing)(xing)半(ban)(ban)門(men)式起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)(ji)則(ze)適(shi)用(yong)于(yu)大型(xing)(xing)鋼(gang)鐵企(qi)業等高強度起(qi)(qi)重(zhong)(zhong)(zhong)任(ren)務(wu)。
