卷筒聯軸器是一種(zhong)新型撓性聯軸器(qi)(qi)，主(zhu)要用(yong)于(yu)起(qi)重(zhong)設備(bei)中起(qi)升機(ji)構的減速器(qi)(qi)輸出軸與鋼絲(si)繩卷筒(tong)的聯接(jie)(jie)，也適用(yong)于(yu)其它(ta)類似的既傳遞轉(zhuan)矩又承(cheng)受(shou)(shou)徑(jing)向載荷(he)的機(ji)械設備(bei)，但不能用(yong)作需(xu)承(cheng)受(shou)(shou)軸向載荷(he)的傳動。卷筒(tong)工(gong)作時產(chan)生(sheng)的附加軸向載荷(he)必須由(you)卷筒(tong)固定支承(cheng)座承(cheng)受(shou)(shou)，因(yin)此(ci)，聯軸器(qi)(qi)安裝時必須保(bao)證(zheng)軸向定位(wei)(wei)正(zheng)確。否(fou)則卷筒(tong)工(gong)作時產(chan)生(sheng)的彈(dan)性水平(ping)位(wei)(wei)移可(ke)能會破壞聯軸器(qi)(qi)的軸向限(xian)位(wei)(wei)，造(zao)成聯接(jie)(jie)失效，甚(shen)至(zhi)釀成嚴重(zhong)事故。

卷筒聯軸器由帶鼓(gu)形齒(chi)的(de)外(wai)齒(chi)軸套(tao)(tao)、帶聯(lian)接法蘭(lan)和(he)內(nei)齒(chi)圈的(de)外(wai)套(tao)(tao)、帶外(wai)球面(mian)(mian)的(de)承(cheng)(cheng)載(zai)環、端蓋和(he)密封圈等(deng)組成(cheng)(cheng)，并設有定位磨損指針、潤(run)(run)滑油孔和(he)通(tong)(tong)氣孔等(deng)。外(wai)齒(chi)軸套(tao)(tao)和(he)外(wai)套(tao)(tao)構(gou)成(cheng)(cheng)的(de)鼓(gu)形齒(chi)式聯(lian)軸器傳(chuan)遞驅動(dong)功率, 而由承(cheng)(cheng)載(zai)環的(de)外(wai)球面(mian)(mian)和(he)外(wai)套(tao)(tao)的(de)內(nei)承(cheng)(cheng)載(zai)面(mian)(mian)形成(cheng)(cheng)的(de)接觸副(fu)構(gou)成(cheng)(cheng)自動(dong)調位的(de)球面(mian)(mian)軸承(cheng)(cheng)，承(cheng)(cheng)受徑向載(zai)荷。卷筒(tong)用聯(lian)軸器的(de)內(nei)、外(wai)齒(chi)嚙合在油浴中工作(zuo),通(tong)(tong)過內(nei)外(wai)端蓋、密封圈防(fang)止潤(run)(run)滑脂泄(xie)漏。