具體參數

混凝土拖泵支(zhi)重輪(lun)部(bu)件上有(you)一(yi)配對錐(zhui)齒(chi)輪(lun)，其中一(yi)個(ge)錐(zhui)齒(chi)輪(lun)結構如圖1，材料(liao)為(wei)20CrMnTi，該齒(chi) 輪(lun)的主要(yao)(yao)技術參數(shu)(shu)為(wei)：大端端面模數(shu)(shu)為(wei)4、齒(chi)數(shu)(shu)20、齒(chi)形角為(wei)20°、切向(xiang)變(bian)位(wei)系數(shu)(shu)為(wei)0、徑(jing)向(xiang)變(bian)位(wei)系數(shu)(shu) 為(wei)-0.27、大端齒(chi)高0.8mm、精度等級為(wei)8CB GB11365。由(you)于齒(chi)面硬度要(yao)(yao)求為(wei)HRC56~64，因此，齒(chi)輪(lun)需要(yao)(yao)進行滲(shen)碳淬火處理，滲(shen)層深度要(yao)(yao)求為(wei)0.8-1.2mm。

從(cong)技術要求(qiu)和(he)精度等級(ji)來看，該(gai)齒(chi)(chi)輪(lun)的加(jia)工(gong)(gong)(gong)精度 等級(ji)要求(qiu)不高，要確保(bao)該(gai)零件(jian)的加(jia)工(gong)(gong)(gong)質量，關鍵(jian)在于(yu)解決好錐齒(chi)(chi)加(jia)工(gong)(gong)(gong)和(he)熱處(chu)理工(gong)(gong)(gong)藝環節，由于(yu)該(gai)零件(jian) 屬于(yu)試制(zhi)階段，為降低加(jia)工(gong)(gong)(gong)成本(ben)，我們(men)決定在臥式銑(xian)(xian)床(chuang)上采用成形齒(chi)(chi)輪(lun)銑(xian)(xian)刀銑(xian)(xian)齒(chi)(chi)法加(jia)工(gong)(gong)(gong)該(gai)錐齒(chi)(chi)輪(lun)，并通過制(zhi)訂(ding)合(he)理的熱處(chu)理工(gong)(gong)(gong)藝方法和(he)參數來保(bao)證該(gai)齒(chi)(chi)輪(lun)的加(jia)工(gong)(gong)(gong)質量。