卷筒是起升機構中用來纏繞鋼絲繩的部件。卷筒與卷筒軸、法蘭式內齒圈、卷筒轂、軸承和軸承座等組成卷筒組。dangjuantongzhouyiduanzhuangyouxuanzhuanshishangshengjixianweizhixianzhiqidekaiguanshi，bixuquebaojuantongzhouyushangshengxianweikaiguandezhuanzhoutongbuxuanzhuan。juantongcailiaoyibancaiyongzhutie。tebiexuyaoshikeyongzhuganghuoyonggangbanjuanzhihanjiezhizao。