起重機吊鉤組就是吊鉤於滑輪組的滑動輪的組合體。吊鉤組有長型和段型兩種類型。
長型吊鉤組采用普通的鉤柄較短的短吊鉤,支承在吊鉤梁上,滑輪支承在單獨的滑輪軸上。它的高度較大,使有效起升高度減少。
段duan型xing吊diao鉤gou組zu過guo去qu采cai用yong長chang吊diao鉤gou,這zhe種zhong吊diao鉤gou組zu的de滑hua輪lun直zhi接jie裝zhuang在zai吊diao鉤gou橫heng梁liang上shang,高gao度du大da小xiao減jian少shao,但dan隻zhi能neng用yong於yu雙shuang倍bei率lv滑hua輪lun組zu。因yin為wei但dan倍bei率lv滑hua輪lun組zu的de均jun衡heng輪lun在zai下xia方fang,隻zhi有you用yong長chang型xing吊diao鉤gou組zu才cai能neng安an裝zhuang這zhe個ge均jun衡heng滑hua輪lun。現xian在zai生sheng產chan的de短duan型xing吊diao鉤gou組zu在zai機ji構gou上shang類lei似si長chang型xing吊diao鉤gou組zu,單dan具ju有you短duan型xing的de特te點dian。短duan型xing吊diao鉤gou組zu隻zhi能neng用yong於yu較jiao小xiao的de滑hua輪lun組zu倍bei率lv。當dang倍bei率lv較jiao大da時shi,滑hua輪lun組zu數shu目mu再zai增zeng多duo,吊diao鉤gou橫heng梁liang過guo長chang,因yin而er彎wan曲qu力li矩ju過guo大da,使shi吊diao鉤gou自zi重zhong過guo大da。因yin此ci短duan型xing吊diao鉤gou組zu隻zhi適shi用yong於yu較jiao小xiao的de起qi重zhong機ji。
為wei了le吊diao重zhong方fang便bian,吊diao鉤gou應ying能neng繞rao垂chui直zhi軸zhou線xian於yu水shui平ping軸zhou線xian旋xuan轉zhuan。因yin此ci,吊diao鉤gou用yong止zhi推tui軸zhou承cheng支zhi承cheng在zai吊diao鉤gou橫heng梁liang上shang,吊diao鉤gou尾wei部bu的de螺luo母mu壓ya在zai這zhe個ge止zhi推tui軸zhou承cheng上shang。螺luo母mu應ying有you可ke靠kao的de防fang鬆song性xing裝zhuang置zhi,止zhi推tui軸zhou承cheng應ying有you防fang塵chen裝zhuang置zhi。為wei了le使shi吊diao鉤gou能neng繞rao水shui平ping軸zhou線xian旋xuan轉zhuan,長chang型xing吊diao鉤gou橫heng梁liang的de軸zhou端duan於yu定ding軸zhou擋dang板ban相xiang配pei處chu製zhi成cheng環huan形xing槽cao,容rong許xu橫heng梁liang轉zhuan動dong;相反,上方滑輪軸的軸端則為扁缺口,不容許滑輪軸轉動。
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