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卷筒用鼓形(xing)齒(chi)(chi)(chi)式(shi)聯軸(zhou)(zhou)(zhou)器(qi)(qi)是由齒(chi)(chi)(chi)數相同的(de)(de)內齒(chi)(chi)(chi)圈(quan)和(he)帶外齒(chi)(chi)(chi)的(de)(de)凸緣(yuan)半聯軸(zhou)(zhou)(zhou)器(qi)(qi)等零件(jian)組成。外齒(chi)(chi)(chi)分為直齒(chi)(chi)(chi)和(he)鼓形(xing)齒(chi)(chi)(chi)兩種齒(chi)(chi)(chi)形(xing)，所(suo)謂鼓形(xing)齒(chi)(chi)(chi)即為將外齒(chi)(chi)(chi)制成球面，球面中心在(zai)齒(chi)(chi)(chi)輪(lun)軸(zhou)(zhou)(zhou)線上，齒(chi)(chi)(chi)側間隙較(jiao)一般齒(chi)(chi)(chi)輪(lun)大，鼓形(xing)齒(chi)(chi)(chi)聯軸(zhou)(zhou)(zhou)器(qi)(qi)可允許較(jiao)大的(de)(de)角位(wei)移(相對于直齒(chi)(chi)(chi)聯軸(zhou)(zhou)(zhou)器(qi)(qi))，可改(gai)善齒(chi)(chi)(chi)的(de)(de)接觸條件(jian)，提高傳遞轉矩的(de)(de)能(neng)力，延長使用壽命。

卷筒用鼓形(xing)(xing)齒(chi)式聯(lian)軸(zhou)(zhou)器(qi)(qi)在工作時，兩(liang)軸(zhou)(zhou)產生相對位移，內外齒(chi)的(de)齒(chi)面周期性作軸(zhou)(zhou)向相對滑動(dong)，必(bi)然形(xing)(xing)成齒(chi)面磨損和功(gong)率損耗，因(yin)此齒(chi)式聯(lian)軸(zhou)(zhou)器(qi)(qi)需在良好(hao)潤滑和密封的(de)狀(zhuang)態下工作。

卷筒(tong)用(yong)(yong)(yong)鼓(gu)形齒式(shi)(shi)聯(lian)軸器徑向尺寸(cun)小，承載(zai)能力大，常用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)低速重(zhong)載(zai)工(gong)(gong)況條(tiao)件的軸系傳動(dong)，如冶金、礦山、起重(zhong)運輸行業，也適(shi)用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)石油(you)、化工(gong)(gong)、通用(yong)(yong)(yong)機(ji)械等行業。高(gao)精度并經(jing)動(dong)平衡(heng)的齒式(shi)(shi)聯(lian)軸器可(ke)用(yong)(yong)(yong)于(yu)(yu)(yu)(yu)高(gao)速傳動(dong)，如燃汽(qi)輪機(ji)的軸系傳動(dong)。由于(yu)(yu)(yu)(yu)鼓(gu)形齒式(shi)(shi)聯(lian)軸器的角向補償大于(yu)(yu)(yu)(yu)直齒式(shi)(shi)聯(lian)軸器，國內外均廣泛采用(yong)(yong)(yong)鼓(gu)形齒式(shi)(shi)聯(lian)軸器。