鼓形齒式聯軸器是由普通直齒聯軸器發展演變而來的，鼓形齒式聯軸器在(zai)許(xu)多(duo)的工業已有種(zhong)種(zhong)標準及系列產品(pin)，由兩個鼓(gu)形外(wai)齒(chi)(chi)(chi)套與一對直齒(chi)(chi)(chi)內(nei)齒(chi)(chi)(chi)齒(chi)(chi)(chi)圈(quan)等(deng)零(ling)件組成，靠內(nei)，外(wai)齒(chi)(chi)(chi)的嚙合傳遞轉矩，并通鼓(gu)形外(wai)齒(chi)(chi)(chi)套的直齒(chi)(chi)(chi)的內(nei)齒(chi)(chi)(chi)圈(quan)的軸(zhou)線擺動(dong)(dong)(稱(cheng)角(jiao)向位(wei)移(yi)(yi))來(lai)補(bu)償倆傳動(dong)(dong)軸(zhou)線的相對偏移(yi)(yi)。齒(chi)(chi)(chi)長方向的鼓(gu)度越大(da)，其角(jiao)向位(wei)移(yi)(yi)越大(da)。從(cong)彎曲強度和承載能力來(lai)看，在(zai)相同(tong)的工作條件下鼓(gu)形齒(chi)(chi)(chi)式聯軸(zhou)器(qi)傳遞扭(niu)矩可(ke)提高(gao)23%。
齒(chi)(chi)(chi)(chi)(chi)(chi)長(chang)方向的(de)(de)(de)(de)鼓(gu)(gu)度，使(shi)齒(chi)(chi)(chi)(chi)(chi)(chi)對接觸(chu)情況較好，因此鼓(gu)(gu)形(xing)(xing)(xing)齒(chi)(chi)(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)軸(zhou)(zhou)器(qi)有(you)傳動(dong)能力(li)(li)大(da)、角(jiao)位(wei)移(yi)大(da)、傳動(dong)平穩、效率高、壽(shou)命長(chang)等優點。鼓(gu)(gu)形(xing)(xing)(xing)齒(chi)(chi)(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)軸(zhou)(zhou)器(qi)是(shi)由齒(chi)(chi)(chi)(chi)(chi)(chi)數(shu)相(xiang)同的(de)(de)(de)(de)內齒(chi)(chi)(chi)(chi)(chi)(chi)圈和(he)帶(dai)外齒(chi)(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)(de)凸(tu)緣半聯(lian)軸(zhou)(zhou)器(qi)等零(ling)件組(zu)成(cheng)。外齒(chi)(chi)(chi)(chi)(chi)(chi)分為直(zhi)齒(chi)(chi)(chi)(chi)(chi)(chi)和(he)鼓(gu)(gu)形(xing)(xing)(xing)齒(chi)(chi)(chi)(chi)(chi)(chi)兩(liang)種齒(chi)(chi)(chi)(chi)(chi)(chi)形(xing)(xing)(xing)，所謂鼓(gu)(gu)形(xing)(xing)(xing)齒(chi)(chi)(chi)(chi)(chi)(chi)即(ji)為將外齒(chi)(chi)(chi)(chi)(chi)(chi)制(zhi)成(cheng)球面(mian)，球面(mian)中(zhong)心在(zai)齒(chi)(chi)(chi)(chi)(chi)(chi)輪軸(zhou)(zhou)線上，齒(chi)(chi)(chi)(chi)(chi)(chi)側(ce)間隙較一(yi)般(ban)齒(chi)(chi)(chi)(chi)(chi)(chi)輪大(da)，鼓(gu)(gu)形(xing)(xing)(xing)齒(chi)(chi)(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)軸(zhou)(zhou)器(qi)可允許較大(da)的(de)(de)(de)(de)角(jiao)位(wei)移(yi)，可齒(chi)(chi)(chi)(chi)(chi)(chi)的(de)(de)(de)(de)接觸(chu)條(tiao)件，提高傳遞轉矩的(de)(de)(de)(de)能力(li)(li)，延(yan)長(chang)使(shi)用壽(shou)命，鼓(gu)(gu)形(xing)(xing)(xing)齒(chi)(chi)(chi)(chi)(chi)(chi)式(shi)(shi)聯(lian)軸(zhou)(zhou)器(qi)有(you)角(jiao)位(wei)移(yi)時(shi)沿齒(chi)(chi)(chi)(chi)(chi)(chi)寬的(de)(de)(de)(de)接觸(chu)狀態。
鼓(gu)(gu)形齒式(shi)聯軸(zhou)器的(de)內部(bu)結構很復雜，所(suo)使用(yong)的(de)材質有(you)(you)的(de)要求，才可以(yi)滿(man)足扭(niu)矩(ju)及轉(zhuan)速(su)的(de)使用(yong)要求。鼓(gu)(gu)形齒式(shi)聯軸(zhou)器具有(you)(you)高強(qiang)度(du)(du)(du)和韌(ren)性(xing)，淬透性(xing)也較(jiao)好，無明顯(xian)的(de)回(hui)火脆性(xing)，淬火時變(bian)形小，調(diao)質處理后有(you)(you)較(jiao)高的(de)疲勞(lao)和抗多(duo)次沖(chong)擊(ji)能力，低溫沖(chong)擊(ji)韌(ren)度(du)(du)(du)良好，高溫時有(you)(you)高的(de)蠕變(bian)強(qiang)度(du)(du)(du)和強(qiang)度(du)(du)(du)。鼓(gu)(gu)形齒式(shi)聯軸(zhou)器潤(run)滑油(you)從(cong)輪齒底部(bu)各個小孔噴入，油(you)受離心力作(zuo)用(yong)進入嚙合面，起潤(run)滑與冷(leng)卻作(zuo)用(yong)。油(you)經嚙合面后由齒的(de)兩側流(liu)出，這種型式(shi)潤(run)滑，油(you)流(liu)循(xun)環不斷，雜志(zhi)隨之流(liu)出。
我們噴(pen)入(ru)(ru)的(de)(de)潤(run)滑(hua)(hua)油(you)后(hou)，在(zai)離心(xin)力作用下(xia)造(zao)成(cheng)的(de)(de)壓力進(jin)入(ru)(ru)輪齒嚙合(he)面，所以有較(jiao)好的(de)(de)潤(run)滑(hua)(hua)冷卻效果(guo)，適用于高速重(zhong)載的(de)(de)場(chang)合(he)。潤(run)滑(hua)(hua)油(you)由噴(pen)嘴射入(ru)(ru)，由于轉動時潤(run)滑(hua)(hua)油(you)受離心(xin)力作用而在(zai)齒輪外圓保持的(de)(de)潤(run)滑(hua)(hua)油(you)層(ceng)，這種潤(run)滑(hua)(hua)方式將使(shi)雜志殘留與齒圈內(nei)，而油(you)流的(de)(de)散熱(re)效果(guo)也較(jiao)差，因此僅(jin)適用于功(gong)率小、速度(du)低的(de)(de)場(chang)合(he)。我們在(zai)使(shi)用之余要經常對(dui)其進(jin)行保養，才可(ke)長期使(shi)用。
