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鼓(gu)(gu)型齒(chi)(chi)(chi)(chi)式聯(lian)(lian)軸(zhou)器(qi)是由齒(chi)(chi)(chi)(chi)數相同的(de)內齒(chi)(chi)(chi)(chi)圈(quan)和(he)帶外齒(chi)(chi)(chi)(chi)的(de)凸緣半聯(lian)(lian)軸(zhou)器(qi)等零件(jian)組成(cheng)。外齒(chi)(chi)(chi)(chi)分(fen)為直齒(chi)(chi)(chi)(chi)和(he)鼓(gu)(gu)形齒(chi)(chi)(chi)(chi)兩種齒(chi)(chi)(chi)(chi)形，所謂鼓(gu)(gu)形齒(chi)(chi)(chi)(chi)即為將外齒(chi)(chi)(chi)(chi)制成(cheng)球面，球面中心在(zai)齒(chi)(chi)(chi)(chi)輪軸(zhou)線(xian)上，齒(chi)(chi)(chi)(chi)側間隙較一般齒(chi)(chi)(chi)(chi)輪大，鼓(gu)(gu)形齒(chi)(chi)(chi)(chi)聯(lian)(lian)軸(zhou)器(qi)可允許較大的(de)角位移(相對于(yu)直齒(chi)(chi)(chi)(chi)聯(lian)(lian)軸(zhou)器(qi))，可改善齒(chi)(chi)(chi)(chi)的(de)接觸(chu)條(tiao)件(jian)，提(ti)高(gao)傳遞轉矩的(de)能力，延長使用壽(shou)命。

鼓型齒式(shi)聯軸器在工(gong)作(zuo)時，兩軸產生(sheng)相對位移，內外齒的齒面周期性作(zuo)軸向相對滑(hua)動，必然形成齒面磨損(sun)和功(gong)率損(sun)耗，因此齒式(shi)聯軸器需在良好潤滑(hua)和密封的狀態下工(gong)作(zuo)。

鼓(gu)型齒(chi)(chi)式(shi)聯軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)徑向尺寸小(xiao)，承載(zai)能力大，常用(yong)于低速重載(zai)工況條件的(de)軸(zhou)(zhou)(zhou)(zhou)系(xi)傳動(dong)，如冶金(jin)、礦山、起重運輸行(xing)業，也適用(yong)于石油、化工、通用(yong)機械(xie)等行(xing)業。高精度并經(jing)動(dong)平衡的(de)齒(chi)(chi)式(shi)聯軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)可用(yong)于高速傳動(dong)，如燃汽輪(lun)機的(de)軸(zhou)(zhou)(zhou)(zhou)系(xi)傳動(dong)。由于鼓(gu)形(xing)齒(chi)(chi)式(shi)聯軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)的(de)角向補(bu)償(chang)大于直齒(chi)(chi)式(shi)聯軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)，國內外(wai)均廣泛采用(yong)鼓(gu)形(xing)齒(chi)(chi)式(shi)聯軸(zhou)(zhou)(zhou)(zhou)器(qi)(qi)。