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尼(ni)龍內齒(chi)(chi)(chi)(chi)(chi)式(shi)聯(lian)軸器(qi)(qi)(qi)是由齒(chi)(chi)(chi)(chi)(chi)數相同(tong)的內齒(chi)(chi)(chi)(chi)(chi)圈和帶外齒(chi)(chi)(chi)(chi)(chi)的凸緣半聯(lian)軸器(qi)(qi)(qi)等零件(jian)組成。外齒(chi)(chi)(chi)(chi)(chi)分為直(zhi)(zhi)齒(chi)(chi)(chi)(chi)(chi)和鼓(gu)(gu)形齒(chi)(chi)(chi)(chi)(chi)兩種(zhong)齒(chi)(chi)(chi)(chi)(chi)形，所謂鼓(gu)(gu)形齒(chi)(chi)(chi)(chi)(chi)即為將(jiang)外齒(chi)(chi)(chi)(chi)(chi)制(zhi)成球(qiu)面，球(qiu)面中(zhong)心(xin)在齒(chi)(chi)(chi)(chi)(chi)輪(lun)軸線上，齒(chi)(chi)(chi)(chi)(chi)側(ce)間隙較一般齒(chi)(chi)(chi)(chi)(chi)輪(lun)大(da)，鼓(gu)(gu)形齒(chi)(chi)(chi)(chi)(chi)聯(lian)軸器(qi)(qi)(qi)可允許(xu)較大(da)的角位(wei)移(yi)(相對于直(zhi)(zhi)齒(chi)(chi)(chi)(chi)(chi)聯(lian)軸器(qi)(qi)(qi))，可改(gai)善齒(chi)(chi)(chi)(chi)(chi)的接觸條件(jian)，提高傳遞轉矩(ju)的能(neng)力(li)，延長(chang)使用(yong)壽命。

尼龍內齒(chi)(chi)式聯(lian)軸器(qi)在工(gong)作時(shi)，兩軸產生相(xiang)對位移，內外齒(chi)(chi)的齒(chi)(chi)面周(zhou)期性作軸向相(xiang)對滑動，必然形(xing)成齒(chi)(chi)面磨損和(he)功率(lv)損耗，因(yin)此齒(chi)(chi)式聯(lian)軸器(qi)需在良(liang)好潤滑和(he)密封的狀態下工(gong)作。

尼龍內齒(chi)式(shi)(shi)聯軸(zhou)器(qi)徑向尺寸(cun)小，承載(zai)能(neng)力大，常(chang)用于低速重(zhong)載(zai)工況條件的軸(zhou)系(xi)傳動(dong)，如(ru)(ru)冶金、礦山、起重(zhong)運輸行業(ye)，也適用于石油(you)、化工、通用機(ji)械等行業(ye)。高(gao)精度并經動(dong)平(ping)衡的齒(chi)式(shi)(shi)聯軸(zhou)器(qi)可用于高(gao)速傳動(dong)，如(ru)(ru)燃汽輪機(ji)的軸(zhou)系(xi)傳動(dong)。由(you)于鼓(gu)形齒(chi)式(shi)(shi)聯軸(zhou)器(qi)的角向補償(chang)大于直齒(chi)式(shi)(shi)聯軸(zhou)器(qi)，國(guo)內外(wai)均廣泛采用鼓(gu)形齒(chi)式(shi)(shi)聯軸(zhou)器(qi)。