卷筒聯軸器是一種新型撓性聯(lian)軸(zhou)器(qi)(qi)，主要用(yong)(yong)(yong)于起重設備中起升機構的減速(su)器(qi)(qi)輸出軸(zhou)與鋼絲繩卷(juan)筒(tong)(tong)的聯(lian)接，也(ye)適用(yong)(yong)(yong)于其它類似的既傳遞轉(zhuan)矩又(you)承(cheng)受(shou)徑向(xiang)(xiang)載荷(he)的機械設備，但不能用(yong)(yong)(yong)作(zuo)需承(cheng)受(shou)軸(zhou)向(xiang)(xiang)載荷(he)的傳動(dong)。卷(juan)筒(tong)(tong)工作(zuo)時產(chan)生的附加軸(zhou)向(xiang)(xiang)載荷(he)必須由卷(juan)筒(tong)(tong)固定(ding)支承(cheng)座承(cheng)受(shou)，因此，聯(lian)軸(zhou)器(qi)(qi)安(an)裝時必須保證軸(zhou)向(xiang)(xiang)定(ding)位(wei)正(zheng)確。否則(ze)卷(juan)筒(tong)(tong)工作(zuo)時產(chan)生的彈性水平位(wei)移可能會破壞聯(lian)軸(zhou)器(qi)(qi)的軸(zhou)向(xiang)(xiang)限位(wei)，造成(cheng)聯(lian)接失(shi)效(xiao)，甚至(zhi)釀成(cheng)嚴重事故。

卷筒聯軸器由帶(dai)鼓(gu)形(xing)齒(chi)的(de)(de)外(wai)齒(chi)軸套、帶(dai)聯(lian)接法蘭(lan)和(he)內(nei)齒(chi)圈的(de)(de)外(wai)套、帶(dai)外(wai)球面(mian)的(de)(de)承(cheng)載環、端(duan)蓋和(he)密封圈等(deng)組成(cheng)，并設有定位磨損(sun)指針、潤滑(hua)油孔和(he)通氣孔等(deng)。外(wai)齒(chi)軸套和(he)外(wai)套構(gou)成(cheng)的(de)(de)鼓(gu)形(xing)齒(chi)式聯(lian)軸器傳(chuan)遞驅(qu)動功率, 而(er)由承(cheng)載環的(de)(de)外(wai)球面(mian)和(he)外(wai)套的(de)(de)內(nei)承(cheng)載面(mian)形(xing)成(cheng)的(de)(de)接觸副構(gou)成(cheng)自動調位的(de)(de)球面(mian)軸承(cheng)，承(cheng)受徑(jing)向載荷。卷筒(tong)用(yong)聯(lian)軸器的(de)(de)內(nei)、外(wai)齒(chi)嚙合在油浴中工(gong)作,通過內(nei)外(wai)端(duan)蓋、密封圈防止潤滑(hua)脂泄漏。