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鼓形齒(chi)式聯軸器(qi)的特點 
●齒(chi)(chi)(chi)式聯軸(zhou)(zhou)器(qi)是由齒(chi)(chi)(chi)數相同的內齒(chi)(chi)(chi)圈和帶外(wai)齒(chi)(chi)(chi)的凸緣半聯軸(zhou)(zhou)器(qi)等零件組成。外(wai)齒(chi)(chi)(chi)分為直齒(chi)(chi)(chi)和鼓形齒(chi)(chi)(chi)兩種齒(chi)(chi)(chi)形，所謂鼓形齒(chi)(chi)(chi)即(ji)為將外(wai)齒(chi)(chi)(chi)制(zhi)成球面(mian)，球面(mian)中心在齒(chi)(chi)(chi)輪軸(zhou)(zhou)線上，齒(chi)(chi)(chi)側(ce)間隙較(jiao)一般齒(chi)(chi)(chi)輪大，鼓形齒(chi)(chi)(chi)聯軸(zhou)(zhou)器(qi)可(ke)允許較(jiao)大的角位移(yi)（相對于(yu)直齒(chi)(chi)(chi)聯軸(zhou)(zhou)器(qi)），可(ke)改(gai)善(shan)齒(chi)(chi)(chi)的接(jie)觸(chu)條件，提高傳遞轉(zhuan)矩的能力，延長使(shi)用壽(shou)命。有角位移(yi)時沿齒(chi)(chi)(chi)寬的接(jie)觸(chu)狀態。 
●齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)在工作時，兩軸(zhou)產生相對角位移，內外(wai)齒(chi)(chi)(chi)(chi)的(de)(de)(de)齒(chi)(chi)(chi)(chi)面(mian)周期性作軸(zhou)向(xiang)(xiang)相對滑(hua)動，必然形成齒(chi)(chi)(chi)(chi)面(mian)磨損和(he)功率消耗，因此，齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)需在有良好(hao)和(he)密封的(de)(de)(de)狀態下工作。齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)徑向(xiang)(xiang)尺寸小，承載(zai)能力大(da)(da)，常用(yong)(yong)于(yu)低速(su)重載(zai)工況(kuang)條件的(de)(de)(de)軸(zhou)系傳動，高精度并(bing)經動平衡的(de)(de)(de)齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)可用(yong)(yong)于(yu)高速(su)傳動，如燃(ran)汽(qi)輪(lun)機的(de)(de)(de)軸(zhou)系傳動。由(you)于(yu)鼓形齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)角向(xiang)(xiang)補償大(da)(da)于(yu)直齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)，國內外(wai)均廣泛采用(yong)(yong)鼓形齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)，直齒(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)(lian)軸(zhou)器(qi)屬(shu)于(yu)被(bei)淘汰的(de)(de)(de)產品，選用(yong)(yong)者應盡量不選用(yong)(yong).