鼓(gu)齒(chi)(chi)式聯(lian)(lian)軸器(qi)(qi)是由(you)齒(chi)(chi)數相(xiang)同的內齒(chi)(chi)圈(quan)和帶外齒(chi)(chi)的凸緣半聯(lian)(lian)軸器(qi)(qi)等零件組成。外齒(chi)(chi)分為(wei)直齒(chi)(chi)和鼓(gu)形齒(chi)(chi)兩種(zhong)齒(chi)(chi)形,所謂鼓(gu)形齒(chi)(chi)即為(wei)將外齒(chi)(chi)制成球面(mian),球面(mian)中心在齒(chi)(chi)輪軸線(xian)上,齒(chi)(chi)側(ce)間隙較一(yi)般齒(chi)(chi)輪大,鼓(gu)形齒(chi)(chi)聯(lian)(lian)軸器(qi)(qi)可(ke)允(yun)許較大的角(jiao)位(wei)移(相(xiang)對于直齒(chi)(chi)聯(lian)(lian)軸器(qi)(qi)),可(ke)改(gai)善齒(chi)(chi)的接觸條件,提高傳遞(di)轉矩(ju)的能力,延長使用(yong)壽命。
鼓齒式(shi)(shi)聯軸器在(zai)工作(zuo)時,兩軸產生(sheng)相(xiang)對位移(yi),內外齒的齒面周期性作(zuo)軸向(xiang)相(xiang)對滑動,必然(ran)形成齒面磨損和功率損耗(hao),因此齒式(shi)(shi)聯軸器需在(zai)良(liang)好潤滑和密封的狀態下工作(zuo)。
鼓(gu)齒式聯(lian)(lian)軸器(qi)(qi)徑向(xiang)尺寸小(xiao),承(cheng)載能力(li)大(da),常用(yong)于低(di)速重(zhong)載工況(kuang)條件的(de)軸系(xi)傳動(dong),如冶金、礦(kuang)山、起(qi)重(zhong)運輸行(xing)業,也適(shi)用(yong)于石油、化工、通用(yong)機械等(deng)行(xing)業。高精度(du)并(bing)經動(dong)平(ping)衡(heng)的(de)齒式聯(lian)(lian)軸器(qi)(qi)可(ke)用(yong)于高速傳動(dong),如燃汽輪機的(de)軸系(xi)傳動(dong)。由于鼓(gu)形齒式聯(lian)(lian)軸器(qi)(qi)的(de)角(jiao)向(xiang)補償大(da)于直齒式聯(lian)(lian)軸器(qi)(qi),國內外均廣(guang)泛采用(yong)鼓(gu)形齒式聯(lian)(lian)軸器(qi)(qi)。