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製器的開關時，必須確保卷筒軸與上升限位開關的轉軸同步旋轉。卷筒材料一般
caiyongzhutie。tebiexuyaoshikeyongzhuganghuoyonggangbanjuanzhihanjiezhizao。juantongshiqizhongjiqishengjigouzhongyonglaichanraogangsishengdebujian。shiqizhongjixieshebeidezhongyaozuchengbufen。juantongyujuantongzhou、法蘭式內齒圈、卷筒轂、軸zhou承cheng和he軸zhou承cheng座zuo等deng組zu成cheng卷juan筒tong組zu。當dang卷juan筒tong軸zhou一yi端duan裝zhuang有you旋xuan轉zhuan式shi上shang升sheng極ji限xian位wei置zhi限xian製zhi器qi的de開kai關guan時shi，必bi須xu確que保bao卷juan筒tong軸zhou與yu上shang升sheng限xian位wei開kai關guan的de轉zhuan軸zhou同tong步bu旋xuan轉zhuan卷juan筒tong組zu主zhu要yao由you卷juan筒tong、卷筒軸、齒輪盤接手(或大齒輪)、卷筒轂、軸承體和軸承組成。注意事項：卷筒組、鋼板卷筒組等起重機配件，卷筒加工材料一般采用不低於HT20—40鑄鐵，特殊需要時可用ZG25、ZG35鑄鋼或采用Q235B、Q345B鋼gang板ban焊han接jie。如ru果guo起qi升sheng高gao度du較jiao大da的de時shi候hou，為wei了le縮suo小xiao卷juan筒tong的de尺chi寸cun，可ke采cai用yong表biao麵mian帶dai導dao向xiang螺luo旋xuan槽cao或huo光guang滑hua的de卷juan筒tong進jin行xing多duo層ceng卷juan繞rao，但dan鋼gang絲si繩sheng磨mo損sun較jiao快kuai，適shi用yong於yu慢man速su和he工gong作zuo類lei型xing較jiao輕qing，噸dun位wei較jiao低di的de起qi重zhong機ji。鋼gang板ban卷juan筒tong組zu則ze主zhu要yao適shi用yong於yu大da噸dun位wei、性能要求高的起重機械設備。