卷筒聯(lian)軸(zhou)(zhou)器是起重設備傳(chuan)(chuan)動系統中重要的的部(bu)件， 通(tong)過其(qi)連接減速機動力輸(shu)入軸(zhou)(zhou)和卷筒契合(he)，傳(chuan)(chuan)遞扭矩同時限(xian)制卷筒的軸(zhou)(zhou)向(xiang)竄動，并(bing)且(qie)帶有(you)機械或者電子磨(mo)損報警，是卷筒式提(ti)升(sheng)機構的核心(xin)部(bu)件之(zhi)一。

卷(juan)筒(tong)聯(lian)(lian)軸器是一(yi)種新型撓性聯(lian)(lian)軸器，主要用(yong)于(yu)起重設(she)備中(zhong)起升機構的減速器輸出軸與鋼(gang)絲繩卷(juan)筒(tong)的聯(lian)(lian)接(jie)，也適用(yong)于(yu)其(qi)它類似的既傳遞轉矩又承(cheng)受徑向載荷的機械設(she)備，但不能用(yong)作需承(cheng)受軸向載荷的傳動。

卷筒聯軸器(qi)由帶(dai)(dai)鼓(gu)形齒(chi)的外(wai)(wai)齒(chi)軸套(tao)、帶(dai)(dai)聯接(jie)法蘭和內齒(chi)圈(quan)(quan)的外(wai)(wai)套(tao)、帶(dai)(dai)外(wai)(wai)球面(mian)的承載環、端蓋和密封(feng)圈(quan)(quan)等(deng)組成，并(bing)設有定位磨損指針、潤滑油(you)孔(kong)和通氣孔(kong)等(deng)。

外(wai)(wai)齒軸(zhou)套(tao)和外(wai)(wai)套(tao)構(gou)成(cheng)(cheng)的鼓(gu)形齒式聯軸(zhou)器(qi)(qi)傳(chuan)遞驅動(dong)功率, 而由承(cheng)載環的外(wai)(wai)球面(mian)和外(wai)(wai)套(tao)的內承(cheng)載面(mian)形成(cheng)(cheng)的接觸(chu)副構(gou)成(cheng)(cheng)自動(dong)調位的球面(mian)軸(zhou)承(cheng)，承(cheng)受(shou)徑向載荷。聯軸(zhou)器(qi)(qi)的內、外(wai)(wai)齒嚙(nie)合在油浴中工作,通過(guo)內外(wai)(wai)端蓋、密封圈防止潤滑脂泄(xie)漏。