固(gu)(gu)定式(shi)(shi)鋼(gang)(gang)絲(si)(si)繩變(bian)(bian)幅(fu)(fu)抓(zhua)(zhua)斗(dou)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)是(shi)一種自動(dong)取(qu)物機(ji)械，它的抓(zhua)(zhua)取(qu)和卸(xie)出物料動(dong)作(zuo)(zuo)是(shi)由卸(xie)船機(ji)司機(ji)操作(zuo)(zuo)，不需要輔佐人員(yuan)，因此避免(mian)了(le)工(gong)(gong)人的深重(zhong)(zhong)(zhong)勞作(zuo)(zuo)，節省了(le)輔佐工(gong)(gong)作(zuo)(zuo)時間，大大進(jin)步(bu)了(le)裝(zhuang)卸(xie)功(gong)率。固(gu)(gu)定式(shi)(shi)鋼(gang)(gang)絲(si)(si)繩變(bian)(bian)幅(fu)(fu)抓(zhua)(zhua)斗(dou)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)大體分為橋式(shi)(shi)固(gu)(gu)定式(shi)(shi)鋼(gang)(gang)絲(si)(si)繩變(bian)(bian)幅(fu)(fu)抓(zhua)(zhua)斗(dou)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)，門式(shi)(shi)固(gu)(gu)定式(shi)(shi)鋼(gang)(gang)絲(si)(si)繩變(bian)(bian)幅(fu)(fu)抓(zhua)(zhua)斗(dou)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)，折臂式(shi)(shi)固(gu)(gu)定式(shi)(shi)鋼(gang)(gang)絲(si)(si)繩變(bian)(bian)幅(fu)(fu)抓(zhua)(zhua)斗(dou)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)，通常(chang)人們常(chang)說的固(gu)(gu)定式(shi)(shi)鋼(gang)(gang)絲(si)(si)繩變(bian)(bian)幅(fu)(fu)抓(zhua)(zhua)斗(dou)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)是(shi)指折臂式(shi)(shi)的固(gu)(gu)定式(shi)(shi)鋼(gang)(gang)絲(si)(si)繩變(bian)(bian)幅(fu)(fu)抓(zhua)(zhua)斗(dou)起(qi)(qi)重(zhong)(zhong)(zhong)機(ji)，例如圓(yuan)木吊(diao)。
固定式鋼絲繩變(bian)幅抓斗(dou)起(qi)重機特點
1、進(jin)步(bu)出產(chan)功率
例如：固定(ding)式鋼(gang)絲繩變(bian)幅(fu)抓(zhua)斗起(qi)重(zhong)機(ji)誕生前，碼頭(tou)裝卸(xie)(xie)礦粉(fen)，船倉(cang)里(li)用(yong)(yong)12~16個(ge)(ge)工人(ren)，每人(ren)一(yi)(yi)把鐵鍬，二個(ge)(ge)人(ren)一(yi)(yi)組，每組拿個(ge)(ge)大(da)(da)皮(pi)網(wang)(wang)兜，一(yi)(yi)鍬一(yi)(yi)鍬往大(da)(da)皮(pi)網(wang)(wang)兜里(li)鍬礦粉(fen)，一(yi)(yi)個(ge)(ge)網(wang)(wang)兜較多能(neng)網(wang)(wang)4噸貨。網(wang)(wang)兜鍬滿后，再用(yong)(yong)起(qi)重(zhong)機(ji)吊起(qi)來(lai)。一(yi)(yi)個(ge)(ge)船倉(cang)8小(xiao)時較多只精干200噸貨。而如今(jin)大(da)(da)型卸(xie)(xie)船機(ji)卸(xie)(xie)礦，每小(xiao)時就能(neng)卸(xie)(xie)二千多噸礦，大(da)(da)大(da)(da)提供了出(chu)產功(gong)率(lv)。
2、進步(bu)出產安全性
例如(ru)：固定式鋼(gang)(gang)(gang)絲(si)(si)(si)繩變(bian)幅抓(zhua)斗(dou)起(qi)重(zhong)機(ji)誕(dan)生前(qian)，碼頭(tou)(tou)裝卸原(yuan)木(mu)(mu)(mu)(mu)，船(chuan)倉(cang)里(li)用(yong)4~6個工(gong)(gong)(gong)(gong)(gong)人(ren)(ren)，先用(yong)小鋼(gang)(gang)(gang)絲(si)(si)(si)繩在(zai)(zai)(zai)(zai)原(yuan)木(mu)(mu)(mu)(mu)堆(dui)的(de)(de)斷面縫隙里(li)穿來(lai)(lai)穿去，圍(wei)成估量的(de)(de)面積(ji)，將小鋼(gang)(gang)(gang)絲(si)(si)(si)繩的(de)(de)二端掛(gua)(gua)在(zai)(zai)(zai)(zai)起(qi)重(zhong)機(ji)的(de)(de)鉤子(zi)(zi)(zi)上，起(qi)吊1~2米間(jian)隔，讓原(yuan)木(mu)(mu)(mu)(mu)的(de)(de)一(yi)端翹起(qi)來(lai)(lai)，然(ran)后工(gong)(gong)(gong)(gong)(gong)人(ren)(ren)拿一(yi)根16~28的(de)(de)鋼(gang)(gang)(gang)絲(si)(si)(si)繩，鋼(gang)(gang)(gang)絲(si)(si)(si)繩前(qian)端還有很重(zhong)的(de)(de)鉤子(zi)(zi)(zi)，從(cong)(cong)被(bei)提起(qi)一(yi)頭(tou)(tou)與木(mu)(mu)(mu)(mu)堆(dui)的(de)(de)空(kong)擋里(li)甩曩昔，另一(yi)邊(bian)的(de)(de)工(gong)(gong)(gong)(gong)(gong)人(ren)(ren)快(kuai)速接住(zhu)，否則鋼(gang)(gang)(gang)絲(si)(si)(si)繩連著鉤子(zi)(zi)(zi)會(hui)滑落到木(mu)(mu)(mu)(mu)堆(dui)凹(ao)槽里(li)，甩鋼(gang)(gang)(gang)絲(si)(si)(si)繩工(gong)(gong)(gong)(gong)(gong)人(ren)(ren)得拉起(qi)鋼(gang)(gang)(gang)絲(si)(si)(si)繩從(cong)(cong)頭(tou)(tou)再甩，或(huo)另一(yi)邊(bian)的(de)(de)工(gong)(gong)(gong)(gong)(gong)人(ren)(ren)用(yong)長(chang)木(mu)(mu)(mu)(mu)棍(gun)上裝著鉤子(zi)(zi)(zi)的(de)(de)工(gong)(gong)(gong)(gong)(gong)具(ju)將鋼(gang)(gang)(gang)絲(si)(si)(si)繩撈(lao)起(qi)來(lai)(lai)，然(ran)后鉤子(zi)(zi)(zi)掛(gua)(gua)在(zai)(zai)(zai)(zai)鋼(gang)(gang)(gang)絲(si)(si)(si)繩上將原(yuan)木(mu)(mu)(mu)(mu)捆起(qi)來(lai)(lai)……在(zai)(zai)(zai)(zai)這過程(cheng)中(zhong)原(yuan)木(mu)(mu)(mu)(mu)或(huo)許會(hui)翻(fan)滾(gun)，壓傷(shang)工(gong)(gong)(gong)(gong)(gong)人(ren)(ren)的(de)(de)手(shou)腳，也有或(huo)許工(gong)(gong)(gong)(gong)(gong)人(ren)(ren)多捆了(le)原(yuan)木(mu)(mu)(mu)(mu)超載，鋼(gang)(gang)(gang)絲(si)(si)(si)繩在(zai)(zai)(zai)(zai)空(kong)中(zhong)斷了(le)，十幾根或(huo)幾十根原(yuan)木(mu)(mu)(mu)(mu)空(kong)中(zhong)墜入(ru)，會(hui)將人(ren)(ren)砸死。后來(lai)(lai)包起(qi)帆(fan)發明了(le)木(mu)(mu)(mu)(mu)材(cai)抓(zhua)斗(dou)，大大減(jian)少了(le)人(ren)(ren)身傷(shang)害(hai)事故(gu)。
