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品質齒(chi)(chi)(chi)(chi)式聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)(qi)是由齒(chi)(chi)(chi)(chi)數相(xiang)同的(de)內齒(chi)(chi)(chi)(chi)圈和帶外齒(chi)(chi)(chi)(chi)的(de)凸緣半聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)(qi)等(deng)零(ling)件組成。外齒(chi)(chi)(chi)(chi)分(fen)為(wei)直(zhi)齒(chi)(chi)(chi)(chi)和鼓形齒(chi)(chi)(chi)(chi)兩種齒(chi)(chi)(chi)(chi)形，所(suo)謂鼓形齒(chi)(chi)(chi)(chi)即為(wei)將外齒(chi)(chi)(chi)(chi)制(zhi)成球(qiu)面(mian)，球(qiu)面(mian)中心在齒(chi)(chi)(chi)(chi)輪軸(zhou)(zhou)線(xian)上，齒(chi)(chi)(chi)(chi)側(ce)間隙較一(yi)般齒(chi)(chi)(chi)(chi)輪大(da)，鼓形齒(chi)(chi)(chi)(chi)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)(qi)可允(yun)許較大(da)的(de)角(jiao)位(wei)移(相(xiang)對(dui)于(yu)直(zhi)齒(chi)(chi)(chi)(chi)聯(lian)(lian)(lian)軸(zhou)(zhou)器(qi)(qi)(qi))，可改善(shan)齒(chi)(chi)(chi)(chi)的(de)接觸條件，提高傳遞轉矩的(de)能力(li)，延長(chang)使用壽命(ming)。

品質齒(chi)(chi)式聯(lian)軸(zhou)器在工作時，兩軸(zhou)產生相(xiang)對(dui)位移，內(nei)外齒(chi)(chi)的齒(chi)(chi)面周期性作軸(zhou)向(xiang)相(xiang)對(dui)滑動，必然形成(cheng)齒(chi)(chi)面磨損和(he)功率(lv)損耗，因此齒(chi)(chi)式聯(lian)軸(zhou)器需在良好潤滑和(he)密(mi)封的狀態下工作。

品質齒(chi)(chi)(chi)式(shi)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)徑向尺寸小，承載能力大(da)，常用于(yu)(yu)低速重載工(gong)況(kuang)條件的(de)(de)軸(zhou)(zhou)系傳動(dong)(dong)，如冶金、礦山、起(qi)重運輸行(xing)業，也適(shi)用于(yu)(yu)石油、化工(gong)、通(tong)用機械等行(xing)業。高精度(du)并經動(dong)(dong)平(ping)衡的(de)(de)齒(chi)(chi)(chi)式(shi)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)可用于(yu)(yu)高速傳動(dong)(dong)，如燃(ran)汽輪機的(de)(de)軸(zhou)(zhou)系傳動(dong)(dong)。由(you)于(yu)(yu)鼓(gu)形齒(chi)(chi)(chi)式(shi)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)的(de)(de)角向補(bu)償大(da)于(yu)(yu)直齒(chi)(chi)(chi)式(shi)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)，國內(nei)外均廣泛采用鼓(gu)形齒(chi)(chi)(chi)式(shi)聯(lian)(lian)軸(zhou)(zhou)器(qi)(qi)。