卷筒聯軸器是一種(zhong)新型撓性(xing)(xing)聯(lian)軸(zhou)器，主要用(yong)于起(qi)重(zhong)設(she)備中起(qi)升機構的(de)減速器輸(shu)出軸(zhou)與鋼絲(si)繩卷筒(tong)(tong)(tong)的(de)聯(lian)接(jie)，也(ye)適用(yong)于其它類似的(de)既傳遞轉矩又承(cheng)受徑向(xiang)(xiang)載(zai)荷的(de)機械設(she)備，但不能用(yong)作需承(cheng)受軸(zhou)向(xiang)(xiang)載(zai)荷的(de)傳動。卷筒(tong)(tong)(tong)工(gong)作時(shi)產生的(de)附加軸(zhou)向(xiang)(xiang)載(zai)荷必須由卷筒(tong)(tong)(tong)固(gu)定支(zhi)承(cheng)座承(cheng)受，因此(ci)，聯(lian)軸(zhou)器安裝時(shi)必須保證軸(zhou)向(xiang)(xiang)定位(wei)正確。否(fou)則卷筒(tong)(tong)(tong)工(gong)作時(shi)產生的(de)彈性(xing)(xing)水平位(wei)移(yi)可(ke)能會破壞(huai)聯(lian)軸(zhou)器的(de)軸(zhou)向(xiang)(xiang)限位(wei)，造(zao)成(cheng)聯(lian)接(jie)失效(xiao)，甚(shen)至(zhi)釀成(cheng)嚴(yan)重(zhong)事故。

卷筒聯軸器由(you)帶(dai)鼓形(xing)(xing)齒(chi)的(de)(de)外(wai)(wai)(wai)齒(chi)軸(zhou)(zhou)(zhou)套(tao)(tao)、帶(dai)聯(lian)接法蘭和內(nei)(nei)(nei)齒(chi)圈(quan)(quan)的(de)(de)外(wai)(wai)(wai)套(tao)(tao)、帶(dai)外(wai)(wai)(wai)球面的(de)(de)承(cheng)(cheng)(cheng)(cheng)載環、端蓋和密(mi)封(feng)圈(quan)(quan)等組成(cheng)(cheng)，并(bing)設有定(ding)位磨(mo)損指針(zhen)、潤滑油孔和通(tong)氣孔等。外(wai)(wai)(wai)齒(chi)軸(zhou)(zhou)(zhou)套(tao)(tao)和外(wai)(wai)(wai)套(tao)(tao)構成(cheng)(cheng)的(de)(de)鼓形(xing)(xing)齒(chi)式聯(lian)軸(zhou)(zhou)(zhou)器(qi)傳遞驅動功率, 而由(you)承(cheng)(cheng)(cheng)(cheng)載環的(de)(de)外(wai)(wai)(wai)球面和外(wai)(wai)(wai)套(tao)(tao)的(de)(de)內(nei)(nei)(nei)承(cheng)(cheng)(cheng)(cheng)載面形(xing)(xing)成(cheng)(cheng)的(de)(de)接觸(chu)副(fu)構成(cheng)(cheng)自動調位的(de)(de)球面軸(zhou)(zhou)(zhou)承(cheng)(cheng)(cheng)(cheng)，承(cheng)(cheng)(cheng)(cheng)受徑(jing)向載荷。卷(juan)筒用聯(lian)軸(zhou)(zhou)(zhou)器(qi)的(de)(de)內(nei)(nei)(nei)、外(wai)(wai)(wai)齒(chi)嚙(nie)合在油浴(yu)中工(gong)作,通(tong)過(guo)內(nei)(nei)(nei)外(wai)(wai)(wai)端蓋、密(mi)封(feng)圈(quan)(quan)防止潤滑脂泄(xie)漏。