卷筒聯軸器是一種新型撓性聯(lian)(lian)軸(zhou)器(qi)(qi)，主(zhu)要(yao)用(yong)(yong)于起重(zhong)設備中起升機構的(de)(de)(de)減速器(qi)(qi)輸(shu)出(chu)軸(zhou)與鋼(gang)絲繩卷(juan)筒(tong)(tong)(tong)的(de)(de)(de)聯(lian)(lian)接，也(ye)適用(yong)(yong)于其它類似的(de)(de)(de)既(ji)傳遞轉矩又承受徑向載(zai)荷(he)(he)的(de)(de)(de)機械設備，但(dan)不能用(yong)(yong)作需承受軸(zhou)向載(zai)荷(he)(he)的(de)(de)(de)傳動。卷(juan)筒(tong)(tong)(tong)工(gong)作時產(chan)生(sheng)的(de)(de)(de)附加軸(zhou)向載(zai)荷(he)(he)必須由卷(juan)筒(tong)(tong)(tong)固定(ding)支承座承受，因此，聯(lian)(lian)軸(zhou)器(qi)(qi)安裝時必須保(bao)證(zheng)軸(zhou)向定(ding)位(wei)(wei)正確。否(fou)則(ze)卷(juan)筒(tong)(tong)(tong)工(gong)作時產(chan)生(sheng)的(de)(de)(de)彈性水(shui)平位(wei)(wei)移(yi)可能會破壞聯(lian)(lian)軸(zhou)器(qi)(qi)的(de)(de)(de)軸(zhou)向限位(wei)(wei)，造(zao)成聯(lian)(lian)接失效，甚(shen)至釀成嚴(yan)重(zhong)事故。

卷筒聯軸器由帶(dai)鼓形(xing)齒的(de)(de)外(wai)(wai)(wai)(wai)齒軸套(tao)(tao)、帶(dai)聯接(jie)法蘭和內齒圈的(de)(de)外(wai)(wai)(wai)(wai)套(tao)(tao)、帶(dai)外(wai)(wai)(wai)(wai)球(qiu)面(mian)的(de)(de)承(cheng)(cheng)(cheng)載(zai)環(huan)、端蓋和密封圈等(deng)(deng)組成(cheng)，并設有定(ding)位(wei)磨損(sun)指(zhi)針、潤(run)滑(hua)油(you)孔(kong)和通氣孔(kong)等(deng)(deng)。外(wai)(wai)(wai)(wai)齒軸套(tao)(tao)和外(wai)(wai)(wai)(wai)套(tao)(tao)構成(cheng)的(de)(de)鼓形(xing)齒式聯軸器傳遞(di)驅動功率, 而(er)由承(cheng)(cheng)(cheng)載(zai)環(huan)的(de)(de)外(wai)(wai)(wai)(wai)球(qiu)面(mian)和外(wai)(wai)(wai)(wai)套(tao)(tao)的(de)(de)內承(cheng)(cheng)(cheng)載(zai)面(mian)形(xing)成(cheng)的(de)(de)接(jie)觸副構成(cheng)自動調位(wei)的(de)(de)球(qiu)面(mian)軸承(cheng)(cheng)(cheng)，承(cheng)(cheng)(cheng)受徑向載(zai)荷。卷筒用聯軸器的(de)(de)內、外(wai)(wai)(wai)(wai)齒嚙(nie)合在油(you)浴中工作,通過內外(wai)(wai)(wai)(wai)端蓋、密封圈防止(zhi)潤(run)滑(hua)脂泄漏。