卷筒聯軸器是一種新型(xing)撓性聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)，主要用(yong)于起(qi)重設備(bei)中起(qi)升機(ji)(ji)構的減速器(qi)(qi)輸(shu)出軸(zhou)(zhou)(zhou)與鋼絲繩卷(juan)筒(tong)的聯(lian)(lian)(lian)接(jie)，也適用(yong)于其它類似(si)的既傳(chuan)遞轉(zhuan)矩又承受徑向載(zai)荷的機(ji)(ji)械(xie)設備(bei)，但不能用(yong)作需承受軸(zhou)(zhou)(zhou)向載(zai)荷的傳(chuan)動。卷(juan)筒(tong)工(gong)作時(shi)(shi)產生的附加軸(zhou)(zhou)(zhou)向載(zai)荷必(bi)須由卷(juan)筒(tong)固定支(zhi)承座承受，因此(ci)，聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)安裝時(shi)(shi)必(bi)須保證軸(zhou)(zhou)(zhou)向定位正(zheng)確。否則(ze)卷(juan)筒(tong)工(gong)作時(shi)(shi)產生的彈性水(shui)平位移可能會破壞(huai)聯(lian)(lian)(lian)軸(zhou)(zhou)(zhou)器(qi)(qi)的軸(zhou)(zhou)(zhou)向限(xian)位，造成聯(lian)(lian)(lian)接(jie)失效，甚至釀成嚴重事(shi)故。

卷筒聯軸器由(you)帶鼓(gu)形(xing)(xing)齒(chi)的(de)外(wai)(wai)齒(chi)軸(zhou)套(tao)(tao)、帶聯接(jie)法蘭和(he)(he)內(nei)齒(chi)圈(quan)的(de)外(wai)(wai)套(tao)(tao)、帶外(wai)(wai)球面的(de)承(cheng)(cheng)載(zai)環、端蓋(gai)和(he)(he)密封圈(quan)等組成(cheng)(cheng)(cheng)，并設有(you)定位磨損指針、潤(run)滑(hua)油孔(kong)和(he)(he)通氣孔(kong)等。外(wai)(wai)齒(chi)軸(zhou)套(tao)(tao)和(he)(he)外(wai)(wai)套(tao)(tao)構(gou)(gou)成(cheng)(cheng)(cheng)的(de)鼓(gu)形(xing)(xing)齒(chi)式聯軸(zhou)器傳(chuan)遞驅動功率, 而由(you)承(cheng)(cheng)載(zai)環的(de)外(wai)(wai)球面和(he)(he)外(wai)(wai)套(tao)(tao)的(de)內(nei)承(cheng)(cheng)載(zai)面形(xing)(xing)成(cheng)(cheng)(cheng)的(de)接(jie)觸副構(gou)(gou)成(cheng)(cheng)(cheng)自(zi)動調(diao)位的(de)球面軸(zhou)承(cheng)(cheng)，承(cheng)(cheng)受徑向載(zai)荷。卷筒用(yong)聯軸(zhou)器的(de)內(nei)、外(wai)(wai)齒(chi)嚙合在油浴中工作,通過內(nei)外(wai)(wai)端蓋(gai)、密封圈(quan)防止潤(run)滑(hua)脂泄(xie)漏。