卷筒聯軸器是一種新型撓性聯(lian)軸(zhou)(zhou)器，主(zhu)要用(yong)于(yu)起(qi)重設備中起(qi)升機構(gou)的(de)減速器輸(shu)出(chu)軸(zhou)(zhou)與鋼絲繩卷筒(tong)(tong)的(de)聯(lian)接，也(ye)適用(yong)于(yu)其它類(lei)似的(de)既傳(chuan)遞(di)轉矩(ju)又承(cheng)(cheng)受徑向載荷的(de)機械設備，但不能用(yong)作需承(cheng)(cheng)受軸(zhou)(zhou)向載荷的(de)傳(chuan)動。卷筒(tong)(tong)工作時(shi)產生的(de)附加軸(zhou)(zhou)向載荷必須(xu)由卷筒(tong)(tong)固(gu)定支承(cheng)(cheng)座承(cheng)(cheng)受，因(yin)此，聯(lian)軸(zhou)(zhou)器安裝時(shi)必須(xu)保證軸(zhou)(zhou)向定位(wei)正(zheng)確。否則(ze)卷筒(tong)(tong)工作時(shi)產生的(de)彈性水平位(wei)移(yi)可能會破壞聯(lian)軸(zhou)(zhou)器的(de)軸(zhou)(zhou)向限位(wei)，造成(cheng)(cheng)聯(lian)接失效(xiao)，甚至釀成(cheng)(cheng)嚴重事故(gu)。

卷筒聯軸器由帶(dai)鼓形齒(chi)的(de)外(wai)(wai)(wai)(wai)齒(chi)軸(zhou)套(tao)(tao)、帶(dai)聯(lian)接法蘭和內(nei)(nei)齒(chi)圈的(de)外(wai)(wai)(wai)(wai)套(tao)(tao)、帶(dai)外(wai)(wai)(wai)(wai)球(qiu)面(mian)(mian)的(de)承(cheng)(cheng)(cheng)(cheng)載(zai)(zai)環、端(duan)(duan)蓋和密(mi)封(feng)圈等組成(cheng)，并設(she)有(you)定位磨損(sun)指針(zhen)、潤(run)(run)滑(hua)油孔(kong)和通氣孔(kong)等。外(wai)(wai)(wai)(wai)齒(chi)軸(zhou)套(tao)(tao)和外(wai)(wai)(wai)(wai)套(tao)(tao)構成(cheng)的(de)鼓形齒(chi)式(shi)聯(lian)軸(zhou)器(qi)傳遞驅動功率(lv), 而由承(cheng)(cheng)(cheng)(cheng)載(zai)(zai)環的(de)外(wai)(wai)(wai)(wai)球(qiu)面(mian)(mian)和外(wai)(wai)(wai)(wai)套(tao)(tao)的(de)內(nei)(nei)承(cheng)(cheng)(cheng)(cheng)載(zai)(zai)面(mian)(mian)形成(cheng)的(de)接觸(chu)副構成(cheng)自動調位的(de)球(qiu)面(mian)(mian)軸(zhou)承(cheng)(cheng)(cheng)(cheng)，承(cheng)(cheng)(cheng)(cheng)受(shou)徑向載(zai)(zai)荷。卷筒(tong)用(yong)聯(lian)軸(zhou)器(qi)的(de)內(nei)(nei)、外(wai)(wai)(wai)(wai)齒(chi)嚙合在油浴中工作,通過內(nei)(nei)外(wai)(wai)(wai)(wai)端(duan)(duan)蓋、密(mi)封(feng)圈防止(zhi)潤(run)(run)滑(hua)脂泄漏。