卷筒聯軸器是一(yi)種新型撓(nao)性(xing)(xing)聯(lian)軸器(qi)，主要(yao)用于(yu)起(qi)重設備中起(qi)升(sheng)機構的(de)(de)減速器(qi)輸(shu)出軸與(yu)鋼(gang)絲繩卷(juan)筒(tong)(tong)的(de)(de)聯(lian)接，也適用于(yu)其它類似(si)的(de)(de)既傳(chuan)遞轉(zhuan)矩又承受(shou)徑向載(zai)荷(he)的(de)(de)機械設備，但不能用作(zuo)需承受(shou)軸向載(zai)荷(he)的(de)(de)傳(chuan)動。卷(juan)筒(tong)(tong)工(gong)作(zuo)時(shi)產生(sheng)的(de)(de)附加軸向載(zai)荷(he)必(bi)須由卷(juan)筒(tong)(tong)固定支承座承受(shou)，因(yin)此，聯(lian)軸器(qi)安裝時(shi)必(bi)須保(bao)證軸向定位(wei)(wei)正確。否則卷(juan)筒(tong)(tong)工(gong)作(zuo)時(shi)產生(sheng)的(de)(de)彈性(xing)(xing)水平位(wei)(wei)移(yi)可能會破壞聯(lian)軸器(qi)的(de)(de)軸向限(xian)位(wei)(wei)，造(zao)成聯(lian)接失效，甚(shen)至(zhi)釀成嚴重事故。

卷筒聯軸器由(you)帶(dai)鼓形齒(chi)(chi)(chi)的外(wai)(wai)齒(chi)(chi)(chi)軸套、帶(dai)聯(lian)接(jie)法蘭(lan)和內(nei)(nei)齒(chi)(chi)(chi)圈的外(wai)(wai)套、帶(dai)外(wai)(wai)球(qiu)面(mian)的承(cheng)(cheng)(cheng)(cheng)載環(huan)、端蓋和密封圈等組成，并設有(you)定位(wei)磨損指針、潤滑(hua)油孔和通氣孔等。外(wai)(wai)齒(chi)(chi)(chi)軸套和外(wai)(wai)套構成的鼓形齒(chi)(chi)(chi)式聯(lian)軸器傳遞驅動功率, 而由(you)承(cheng)(cheng)(cheng)(cheng)載環(huan)的外(wai)(wai)球(qiu)面(mian)和外(wai)(wai)套的內(nei)(nei)承(cheng)(cheng)(cheng)(cheng)載面(mian)形成的接(jie)觸副構成自動調位(wei)的球(qiu)面(mian)軸承(cheng)(cheng)(cheng)(cheng)，承(cheng)(cheng)(cheng)(cheng)受徑(jing)向載荷(he)。卷(juan)筒用(yong)聯(lian)軸器的內(nei)(nei)、外(wai)(wai)齒(chi)(chi)(chi)嚙合在油浴(yu)中工作,通過內(nei)(nei)外(wai)(wai)端蓋、密封圈防止潤滑(hua)脂泄漏(lou)。