卷筒聯軸器是一種新型撓(nao)性聯(lian)軸器，主(zhu)要(yao)用(yong)于(yu)起(qi)重設(she)備(bei)中(zhong)起(qi)升(sheng)機構的減速器輸出軸與鋼絲繩卷筒(tong)(tong)的聯(lian)接(jie)，也適用(yong)于(yu)其它類似的既傳(chuan)遞轉矩(ju)又承(cheng)(cheng)受徑向載荷(he)的機械設(she)備(bei)，但不能(neng)用(yong)作需(xu)承(cheng)(cheng)受軸向載荷(he)的傳(chuan)動。卷筒(tong)(tong)工(gong)(gong)作時產(chan)生(sheng)的附加軸向載荷(he)必須由卷筒(tong)(tong)固定支承(cheng)(cheng)座承(cheng)(cheng)受，因此，聯(lian)軸器安(an)裝時必須保證軸向定位正確。否則卷筒(tong)(tong)工(gong)(gong)作時產(chan)生(sheng)的彈性水平(ping)位移可能(neng)會破(po)壞聯(lian)軸器的軸向限位，造(zao)成聯(lian)接(jie)失效(xiao)，甚至釀成嚴重事故(gu)。

卷筒聯軸器由(you)帶(dai)鼓形齒(chi)(chi)的(de)(de)外(wai)齒(chi)(chi)軸套(tao)(tao)、帶(dai)聯(lian)接法蘭(lan)和內(nei)齒(chi)(chi)圈的(de)(de)外(wai)套(tao)(tao)、帶(dai)外(wai)球(qiu)面(mian)的(de)(de)承(cheng)載(zai)(zai)(zai)環(huan)、端蓋和密(mi)封圈等(deng)組成，并設(she)有定(ding)位(wei)磨損指針、潤(run)滑油(you)孔(kong)和通(tong)(tong)氣孔(kong)等(deng)。外(wai)齒(chi)(chi)軸套(tao)(tao)和外(wai)套(tao)(tao)構(gou)成的(de)(de)鼓形齒(chi)(chi)式聯(lian)軸器傳遞驅動功率, 而(er)由(you)承(cheng)載(zai)(zai)(zai)環(huan)的(de)(de)外(wai)球(qiu)面(mian)和外(wai)套(tao)(tao)的(de)(de)內(nei)承(cheng)載(zai)(zai)(zai)面(mian)形成的(de)(de)接觸副構(gou)成自動調(diao)位(wei)的(de)(de)球(qiu)面(mian)軸承(cheng)，承(cheng)受徑向載(zai)(zai)(zai)荷(he)。卷(juan)筒用聯(lian)軸器的(de)(de)內(nei)、外(wai)齒(chi)(chi)嚙(nie)合在油(you)浴中(zhong)工作,通(tong)(tong)過內(nei)外(wai)端蓋、密(mi)封圈防止潤(run)滑脂泄漏。