卷(juan)(juan)筒(tong)(tong)聯軸(zhou)器(qi)是起重設(she)備傳(chuan)動系統中(zhong)重要的(de)的(de)部件(jian)(jian)， 通(tong)過其連(lian)接(jie)減(jian)速機動力輸入(ru)軸(zhou)和卷(juan)(juan)筒(tong)(tong)契合，傳(chuan)遞扭矩同時限制(zhi)卷(juan)(juan)筒(tong)(tong)的(de)軸(zhou)向竄(cuan)動，并且(qie)帶有機械(xie)或(huo)者(zhe)電(dian)子磨損報警(jing)，是卷(juan)(juan)筒(tong)(tong)式(shi)提(ti)升機構的(de)核心部件(jian)(jian)之一。

卷筒(tong)聯(lian)軸(zhou)器(qi)是一種新型撓性(xing)聯(lian)軸(zhou)器(qi)，主要用(yong)于(yu)(yu)起(qi)重設(she)備中起(qi)升機構的(de)減速器(qi)輸出(chu)軸(zhou)與(yu)鋼絲繩卷筒(tong)的(de)聯(lian)接(jie)，也適用(yong)于(yu)(yu)其它類(lei)似的(de)既傳遞轉矩(ju)又(you)承(cheng)受徑向(xiang)載荷的(de)機械設(she)備，但(dan)不能用(yong)作需承(cheng)受軸(zhou)向(xiang)載荷的(de)傳動。

卷筒聯軸器由帶(dai)(dai)鼓形齒的外齒軸套、帶(dai)(dai)聯接(jie)法蘭和(he)內齒圈(quan)的外套、帶(dai)(dai)外球(qiu)面的承載環、端蓋和(he)密封圈(quan)等(deng)組成(cheng)，并(bing)設有定(ding)位磨(mo)損指針、潤滑油孔和(he)通(tong)氣(qi)孔等(deng)。

外(wai)齒軸套(tao)和外(wai)套(tao)構成(cheng)的(de)鼓形(xing)齒式聯(lian)軸器(qi)傳(chuan)遞(di)驅動功率, 而由承(cheng)載環的(de)外(wai)球面(mian)和外(wai)套(tao)的(de)內承(cheng)載面(mian)形(xing)成(cheng)的(de)接觸副構成(cheng)自動調位的(de)球面(mian)軸承(cheng)，承(cheng)受徑向載荷(he)。聯(lian)軸器(qi)的(de)內、外(wai)齒嚙(nie)合在油浴中工作,通過內外(wai)端蓋、密封(feng)圈(quan)防(fang)止潤滑脂泄漏。

凸(tu)(tu)(tu)(tu)(tu)緣聯(lian)(lian)軸(zhou)器(qi)(qi)屬于剛(gang)(gang)性聯(lian)(lian)軸(zhou)器(qi)(qi)，是(shi)(shi)把兩(liang)個(ge)帶有(you)(you)凸(tu)(tu)(tu)(tu)(tu)緣的(de)(de)(de)半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi)用普通平(ping)(ping)鍵(jian)分別與兩(liang)軸(zhou)連(lian)(lian)接(jie)，然后用螺(luo)栓(shuan)(shuan)(shuan)把兩(liang)個(ge)半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi)連(lian)(lian)成一(yi)(yi)體，以(yi)傳(chuan)遞(di)運動(dong)(dong)和(he)轉矩(ju)。這種(zhong)聯(lian)(lian)軸(zhou)器(qi)(qi)有(you)(you)兩(liang)種(zhong)主要的(de)(de)(de)結構(gou)形(xing)式：靠(kao)(kao)鉸制(zhi)孔用螺(luo)栓(shuan)(shuan)(shuan)來實現兩(liang)軸(zhou)對中和(he)靠(kao)(kao)螺(luo)栓(shuan)(shuan)(shuan)桿承受擠壓與剪切來傳(chuan)遞(di)轉矩(ju)；靠(kao)(kao)一(yi)(yi)個(ge)半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi)上(shang)的(de)(de)(de)凸(tu)(tu)(tu)(tu)(tu)肩與另一(yi)(yi)個(ge)半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi)上(shang)的(de)(de)(de)凹槽相配合(he)而對中。連(lian)(lian)接(jie)兩(liang)個(ge)半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi)的(de)(de)(de)螺(luo)栓(shuan)(shuan)(shuan)可以(yi)采用A級和(he)B級的(de)(de)(de)普通螺(luo)栓(shuan)(shuan)(shuan)，轉矩(ju)靠(kao)(kao)兩(liang)個(ge)半(ban)聯(lian)(lian)軸(zhou)器(qi)(qi)結合(he)面的(de)(de)(de)摩擦力(li)矩(ju)來傳(chuan)遞(di)。凸(tu)(tu)(tu)(tu)(tu)緣聯(lian)(lian)軸(zhou)器(qi)(qi)結構(gou)簡(jian)單，制(zhi)造方便，成本較(jiao)(jiao)低，工作可靠(kao)(kao)，裝拆、維護(hu)均較(jiao)(jiao)簡(jian)便，傳(chuan)遞(di)轉矩(ju)較(jiao)(jiao)大，能(neng)保證兩(liang)軸(zhou)具(ju)(ju)有(you)(you)較(jiao)(jiao)高(gao)的(de)(de)(de)對中精(jing)度，一(yi)(yi)般常用于載荷平(ping)(ping)穩，高(gao)速或傳(chuan)動(dong)(dong)精(jing)度要求(qiu)較(jiao)(jiao)高(gao)的(de)(de)(de)軸(zhou)系傳(chuan)動(dong)(dong)。凸(tu)(tu)(tu)(tu)(tu)緣聯(lian)(lian)軸(zhou)器(qi)(qi)不具(ju)(ju)備徑向、軸(zhou)向和(he)角向補(bu)償(chang)。剛(gang)(gang)性聯(lian)(lian)軸(zhou)器(qi)(qi)是(shi)(shi)一(yi)(yi)種(zhong)扭轉剛(gang)(gang)性的(de)(de)(de)聯(lian)(lian)軸(zhou)器(qi)(qi)，即使(shi)承受負載時也無任(ren)何回轉間隙，即便是(shi)(shi)有(you)(you)偏差(cha)產生負荷時，剛(gang)(gang)性聯(lian)(lian)軸(zhou)器(qi)(qi)還是(shi)(shi)剛(gang)(gang)性傳(chuan)遞(di)扭矩(ju)。