具體參數

混凝土拖泵支重輪(lun)部件上(shang)有一(yi)配對錐(zhui)(zhui)齒輪(lun)，其中一(yi)個錐(zhui)(zhui)齒輪(lun)結構如(ru)圖1，材料為(wei)(wei)(wei)(wei)20CrMnTi，該齒 輪(lun)的(de)主要(yao)技術參數(shu)(shu)為(wei)(wei)(wei)(wei)：大端(duan)端(duan)面(mian)模數(shu)(shu)為(wei)(wei)(wei)(wei)4、齒數(shu)(shu)20、齒形角為(wei)(wei)(wei)(wei)20°、切(qie)向變位系(xi)數(shu)(shu)為(wei)(wei)(wei)(wei)0、徑(jing)向變位系(xi)數(shu)(shu) 為(wei)(wei)(wei)(wei)-0.27、大端(duan)齒高0.8mm、精度(du)(du)等(deng)級為(wei)(wei)(wei)(wei)8CB GB11365。由于齒面(mian)硬度(du)(du)要(yao)求(qiu)(qiu)為(wei)(wei)(wei)(wei)HRC56~64，因此，齒輪(lun)需(xu)要(yao)進行滲碳淬火處理，滲層深度(du)(du)要(yao)求(qiu)(qiu)為(wei)(wei)(wei)(wei)0.8-1.2mm。

從技術(shu)要(yao)(yao)求(qiu)和精度等級來(lai)看(kan)，該(gai)齒(chi)輪(lun)的(de)(de)加(jia)工(gong)(gong)(gong)精度 等級要(yao)(yao)求(qiu)不高，要(yao)(yao)確保該(gai)零件(jian)的(de)(de)加(jia)工(gong)(gong)(gong)質(zhi)量，關鍵在于解決好錐齒(chi)加(jia)工(gong)(gong)(gong)和熱(re)處(chu)理工(gong)(gong)(gong)藝環節，由于該(gai)零件(jian) 屬于試制階段(duan)，為降低加(jia)工(gong)(gong)(gong)成本，我(wo)們決定在臥式(shi)銑(xian)床上采用成形齒(chi)輪(lun)銑(xian)刀(dao)銑(xian)齒(chi)法(fa)加(jia)工(gong)(gong)(gong)該(gai)錐齒(chi)輪(lun)，并通(tong)過制訂合理的(de)(de)熱(re)處(chu)理工(gong)(gong)(gong)藝方法(fa)和參數來(lai)保證該(gai)齒(chi)輪(lun)的(de)(de)加(jia)工(gong)(gong)(gong)質(zhi)量。