具體參數

混(hun)凝土拖泵支重輪部件上有一配(pei)對錐齒(chi)輪，其中一個錐齒(chi)輪結構(gou)如圖1，材料為(wei)(wei)(wei)(wei)20CrMnTi，該齒(chi) 輪的主要技術(shu)參數(shu)為(wei)(wei)(wei)(wei)：大端(duan)端(duan)面模數(shu)為(wei)(wei)(wei)(wei)4、齒(chi)數(shu)20、齒(chi)形角為(wei)(wei)(wei)(wei)20°、切向變(bian)位系數(shu)為(wei)(wei)(wei)(wei)0、徑向變(bian)位系數(shu) 為(wei)(wei)(wei)(wei)-0.27、大端(duan)齒(chi)高0.8mm、精(jing)度(du)等(deng)級為(wei)(wei)(wei)(wei)8CB GB11365。由于齒(chi)面硬(ying)度(du)要求為(wei)(wei)(wei)(wei)HRC56~64，因此，齒(chi)輪需要進行滲碳淬火處理(li)，滲層深度(du)要求為(wei)(wei)(wei)(wei)0.8-1.2mm。

從(cong)技術(shu)要求(qiu)和(he)精度等級來(lai)看(kan)，該(gai)齒(chi)輪(lun)(lun)的(de)(de)加工(gong)(gong)(gong)(gong)(gong)精度 等級要求(qiu)不高，要確保(bao)該(gai)零件的(de)(de)加工(gong)(gong)(gong)(gong)(gong)質量，關鍵在于解(jie)決好錐(zhui)齒(chi)加工(gong)(gong)(gong)(gong)(gong)和(he)熱處(chu)理工(gong)(gong)(gong)(gong)(gong)藝(yi)環節(jie)，由于該(gai)零件 屬(shu)于試制階(jie)段，為(wei)降低加工(gong)(gong)(gong)(gong)(gong)成本，我們決定(ding)在臥(wo)式銑床(chuang)上采用成形齒(chi)輪(lun)(lun)銑刀銑齒(chi)法加工(gong)(gong)(gong)(gong)(gong)該(gai)錐(zhui)齒(chi)輪(lun)(lun)，并通過(guo)制訂(ding)合理的(de)(de)熱處(chu)理工(gong)(gong)(gong)(gong)(gong)藝(yi)方法和(he)參數來(lai)保(bao)證(zheng)該(gai)齒(chi)輪(lun)(lun)的(de)(de)加工(gong)(gong)(gong)(gong)(gong)質量。