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折(zhe)線(xian)卷(juan)筒(tong)在(zai)高(gao)揚(yang)程(cheng)大(da)噸(dun)位(wei)起(qi)重(zhong)機(ji)的(de)應(ying)用(yong)在(zai)起(qi)重(zhong)設(she)備(bei)上(shang)通(tong)常(chang)采(cai)用(yong)螺(luo)旋(xuan)線(xian)卷(juan)筒(tong)，該(gai)結(jie)構(gou)對(dui)提(ti)升(sheng)高(gao)度(du)較(jiao)小(xiao)的(de)起(qi)重(zhong)設(she)備(bei)經(jing)濟(ji)有(you)效(xiao)。但(dan)是(shi)，對(dui)高(gao)揚(yang)程(cheng)大(da)噸(dun)位(wei)起(qi)重(zhong)設(she)備(bei)，由(you)於(yu)鋼(gang)絲(si)繩(sheng)纏(chan)繞(rao)的(de)倍(bei)率(lv)加(jia)大(da)，導(dao)致(zhi)鋼(gang)絲(si)繩(sheng)長(chang)度(du)顯(xian)著(zhu)增(zeng)加(jia)，致(zhi)使(shi)卷(juan)筒(tong)長(chang)度(du)、直徑增大，設備龐大、結構臃腫、造價提高。如若采用雙層雙聯螺旋線卷筒纏繞，又會使減速器輸出扭矩成倍增加，造成減速器體積、重zhong量liang增zeng加jia。結jie構gou與yu零ling件jian因yin此ci，經jing反fan複fu論lun證zheng及ji試shi驗yan，確que定ding在zai三san峽xia門men機ji起qi升sheng機ji構gou采cai用yong單dan聯lian單dan根gen鋼gang絲si繩sheng三san層ceng折zhe線xian纏chan繞rao係xi統tong，徹che底di解jie決jue了le高gao揚yang程cheng大da噸dun位wei起qi重zhong設she備bei由you於yu鋼gang絲si繩sheng纏chan繞rao與yu結jie構gou布bu置zhi的de難nan題ti。
