具體參數

混(hun)凝(ning)土拖(tuo)泵支(zhi)重輪部件上有一(yi)配對錐齒(chi)輪，其中一(yi)個錐齒(chi)輪結構(gou)如圖1，材料(liao)為(wei)(wei)20CrMnTi，該齒(chi) 輪的主要技術(shu)參數(shu)為(wei)(wei)：大端(duan)端(duan)面模數(shu)為(wei)(wei)4、齒(chi)數(shu)20、齒(chi)形角為(wei)(wei)20°、切向變位系(xi)數(shu)為(wei)(wei)0、徑(jing)向變位系(xi)數(shu) 為(wei)(wei)-0.27、大端(duan)齒(chi)高0.8mm、精度等(deng)級(ji)為(wei)(wei)8CB GB11365。由于齒(chi)面硬(ying)度要求為(wei)(wei)HRC56~64，因此，齒(chi)輪需要進行滲(shen)碳淬火處理，滲(shen)層深度要求為(wei)(wei)0.8-1.2mm。

從技術要(yao)求(qiu)和(he)(he)精(jing)度等(deng)(deng)級(ji)來(lai)(lai)看，該(gai)(gai)齒輪的(de)加工(gong)(gong)(gong)精(jing)度 等(deng)(deng)級(ji)要(yao)求(qiu)不高，要(yao)確(que)保(bao)該(gai)(gai)零件的(de)加工(gong)(gong)(gong)質量(liang)，關鍵在于解(jie)決好錐齒加工(gong)(gong)(gong)和(he)(he)熱處(chu)理(li)工(gong)(gong)(gong)藝環(huan)節，由于該(gai)(gai)零件 屬于試制(zhi)階(jie)段，為降低加工(gong)(gong)(gong)成(cheng)本，我們決定在臥式(shi)銑(xian)床上采用成(cheng)形齒輪銑(xian)刀(dao)銑(xian)齒法加工(gong)(gong)(gong)該(gai)(gai)錐齒輪，并通過制(zhi)訂合(he)理(li)的(de)熱處(chu)理(li)工(gong)(gong)(gong)藝方法和(he)(he)參(can)數來(lai)(lai)保(bao)證該(gai)(gai)齒輪的(de)加工(gong)(gong)(gong)質量(liang)。