卷筒聯軸器是(shi)一種新(xin)型撓性(xing)聯(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)，主要用(yong)于起(qi)(qi)重設備中起(qi)(qi)升機(ji)構的減速器(qi)(qi)輸出軸(zhou)(zhou)(zhou)與(yu)鋼絲繩卷(juan)(juan)筒(tong)的聯(lian)接，也適用(yong)于其它(ta)類(lei)似的既(ji)傳遞(di)轉矩又承(cheng)受(shou)徑向(xiang)(xiang)載荷的機(ji)械設備，但(dan)不(bu)能(neng)用(yong)作需承(cheng)受(shou)軸(zhou)(zhou)(zhou)向(xiang)(xiang)載荷的傳動。卷(juan)(juan)筒(tong)工(gong)作時(shi)產生(sheng)的附加軸(zhou)(zhou)(zhou)向(xiang)(xiang)載荷必須(xu)(xu)由卷(juan)(juan)筒(tong)固定(ding)支承(cheng)座承(cheng)受(shou)，因(yin)此，聯(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)安裝(zhuang)時(shi)必須(xu)(xu)保證軸(zhou)(zhou)(zhou)向(xiang)(xiang)定(ding)位(wei)正確。否則(ze)卷(juan)(juan)筒(tong)工(gong)作時(shi)產生(sheng)的彈性(xing)水平位(wei)移可能(neng)會破壞聯(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)的軸(zhou)(zhou)(zhou)向(xiang)(xiang)限(xian)位(wei)，造(zao)成(cheng)(cheng)聯(lian)接失效(xiao)，甚(shen)至釀成(cheng)(cheng)嚴(yan)重事故。

卷筒聯軸器由帶(dai)鼓(gu)形齒(chi)(chi)的(de)外(wai)(wai)(wai)齒(chi)(chi)軸套(tao)、帶(dai)聯接法(fa)蘭和(he)內(nei)齒(chi)(chi)圈(quan)的(de)外(wai)(wai)(wai)套(tao)、帶(dai)外(wai)(wai)(wai)球(qiu)面(mian)(mian)的(de)承(cheng)載環(huan)、端蓋和(he)密封圈(quan)等(deng)(deng)組成(cheng)(cheng)，并設有定位磨損指針(zhen)、潤滑(hua)(hua)油孔和(he)通氣孔等(deng)(deng)。外(wai)(wai)(wai)齒(chi)(chi)軸套(tao)和(he)外(wai)(wai)(wai)套(tao)構成(cheng)(cheng)的(de)鼓(gu)形齒(chi)(chi)式聯軸器傳遞驅(qu)動功(gong)率(lv), 而(er)由承(cheng)載環(huan)的(de)外(wai)(wai)(wai)球(qiu)面(mian)(mian)和(he)外(wai)(wai)(wai)套(tao)的(de)內(nei)承(cheng)載面(mian)(mian)形成(cheng)(cheng)的(de)接觸副構成(cheng)(cheng)自動調位的(de)球(qiu)面(mian)(mian)軸承(cheng)，承(cheng)受徑向載荷。卷筒用(yong)聯軸器的(de)內(nei)、外(wai)(wai)(wai)齒(chi)(chi)嚙合在油浴中工(gong)作,通過內(nei)外(wai)(wai)(wai)端蓋、密封圈(quan)防(fang)止(zhi)潤滑(hua)(hua)脂泄漏。