卷筒聯軸器是一種新型(xing)撓性聯(lian)軸器，主(zhu)要用于(yu)(yu)起重設(she)備中起升機(ji)構的減(jian)速器輸出軸與(yu)鋼絲(si)繩卷(juan)(juan)筒(tong)的聯(lian)接，也適用于(yu)(yu)其它類似的既傳(chuan)遞轉矩又承(cheng)受(shou)徑向(xiang)載(zai)荷(he)的機(ji)械設(she)備，但不能用作(zuo)需(xu)承(cheng)受(shou)軸向(xiang)載(zai)荷(he)的傳(chuan)動(dong)。卷(juan)(juan)筒(tong)工作(zuo)時產生的附(fu)加軸向(xiang)載(zai)荷(he)必(bi)須(xu)由(you)卷(juan)(juan)筒(tong)固定支承(cheng)座承(cheng)受(shou)，因此，聯(lian)軸器安(an)裝時必(bi)須(xu)保證軸向(xiang)定位正確。否則卷(juan)(juan)筒(tong)工作(zuo)時產生的彈性水平位移可能會破(po)壞聯(lian)軸器的軸向(xiang)限位，造成聯(lian)接失(shi)效，甚(shen)至釀(niang)成嚴重事故。

卷筒聯軸器由帶鼓形(xing)齒的外(wai)(wai)齒軸(zhou)套、帶聯(lian)接法(fa)蘭和(he)內齒圈(quan)的外(wai)(wai)套、帶外(wai)(wai)球面(mian)的承(cheng)載(zai)環、端(duan)蓋和(he)密封圈(quan)等組(zu)成，并(bing)設有定位(wei)(wei)磨損指針(zhen)、潤滑油(you)孔(kong)和(he)通氣孔(kong)等。外(wai)(wai)齒軸(zhou)套和(he)外(wai)(wai)套構成的鼓形(xing)齒式聯(lian)軸(zhou)器傳遞(di)驅動(dong)功率, 而由承(cheng)載(zai)環的外(wai)(wai)球面(mian)和(he)外(wai)(wai)套的內承(cheng)載(zai)面(mian)形(xing)成的接觸(chu)副構成自動(dong)調位(wei)(wei)的球面(mian)軸(zhou)承(cheng)，承(cheng)受徑向載(zai)荷。卷筒(tong)用聯(lian)軸(zhou)器的內、外(wai)(wai)齒嚙合(he)在油(you)浴中(zhong)工作,通過內外(wai)(wai)端(duan)蓋、密封圈(quan)防止潤滑脂泄(xie)漏。