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WG型鼓型齒(chi)(chi)式(shi)聯(lian)(lian)軸器(qi)(qi)是由齒(chi)(chi)數相同的(de)(de)(de)內齒(chi)(chi)圈和(he)帶外齒(chi)(chi)的(de)(de)(de)凸緣半聯(lian)(lian)軸器(qi)(qi)等零(ling)件(jian)組(zu)成(cheng)。外齒(chi)(chi)分為直(zhi)齒(chi)(chi)和(he)鼓形(xing)(xing)齒(chi)(chi)兩種齒(chi)(chi)形(xing)(xing)，所謂鼓形(xing)(xing)齒(chi)(chi)即為將外齒(chi)(chi)制(zhi)成(cheng)球(qiu)面，球(qiu)面中心在(zai)齒(chi)(chi)輪軸線上，齒(chi)(chi)側間隙(xi)較一(yi)般齒(chi)(chi)輪大(da)，鼓形(xing)(xing)齒(chi)(chi)聯(lian)(lian)軸器(qi)(qi)可允許較大(da)的(de)(de)(de)角位移(相對于直(zhi)齒(chi)(chi)聯(lian)(lian)軸器(qi)(qi))，可改(gai)善齒(chi)(chi)的(de)(de)(de)接觸條件(jian)，提高傳遞(di)轉(zhuan)矩的(de)(de)(de)能力，延長(chang)使用(yong)壽命。

WG型(xing)(xing)鼓型(xing)(xing)齒(chi)(chi)式(shi)聯軸器(qi)在(zai)工(gong)作時，兩軸產生(sheng)相對位移，內外齒(chi)(chi)的(de)齒(chi)(chi)面周期(qi)性作軸向相對滑動，必然形成(cheng)齒(chi)(chi)面磨損(sun)和(he)功率(lv)損(sun)耗，因(yin)此齒(chi)(chi)式(shi)聯軸器(qi)需(xu)在(zai)良好潤(run)滑和(he)密封的(de)狀態下工(gong)作。

WG型鼓型齒(chi)(chi)式(shi)(shi)聯(lian)(lian)軸器(qi)徑向尺(chi)寸小，承載能力大(da)，常用于低速(su)重(zhong)載工況條件的軸系傳(chuan)動(dong)，如(ru)冶(ye)金、礦山、起重(zhong)運輸(shu)行業(ye)，也適用于石油、化工、通用機械(xie)等行業(ye)。高精度并經動(dong)平衡(heng)的齒(chi)(chi)式(shi)(shi)聯(lian)(lian)軸器(qi)可用于高速(su)傳(chuan)動(dong)，如(ru)燃汽輪(lun)機的軸系傳(chuan)動(dong)。由于鼓形齒(chi)(chi)式(shi)(shi)聯(lian)(lian)軸器(qi)的角(jiao)向補償大(da)于直(zhi)齒(chi)(chi)式(shi)(shi)聯(lian)(lian)軸器(qi)，國(guo)內外均廣泛采用鼓形齒(chi)(chi)式(shi)(shi)聯(lian)(lian)軸器(qi)。