具體參數

混凝土拖(tuo)泵(beng)支重輪(lun)部(bu)件上有一配對錐齒輪(lun)，其中一個錐齒輪(lun)結構如(ru)圖1，材料(liao)為(wei)(wei)(wei)20CrMnTi，該齒 輪(lun)的主要技術參數(shu)為(wei)(wei)(wei)：大(da)端(duan)端(duan)面模數(shu)為(wei)(wei)(wei)4、齒數(shu)20、齒形(xing)角為(wei)(wei)(wei)20°、切向變位系(xi)數(shu)為(wei)(wei)(wei)0、徑向變位系(xi)數(shu) 為(wei)(wei)(wei)-0.27、大(da)端(duan)齒高(gao)0.8mm、精度等級為(wei)(wei)(wei)8CB GB11365。由于(yu)齒面硬度要求為(wei)(wei)(wei)HRC56~64，因此，齒輪(lun)需要進行(xing)滲碳(tan)淬火處(chu)理，滲層深度要求為(wei)(wei)(wei)0.8-1.2mm。

從技(ji)術要(yao)求(qiu)和精度(du)(du)等級(ji)來看，該(gai)齒輪(lun)的(de)加工(gong)(gong)(gong)精度(du)(du) 等級(ji)要(yao)求(qiu)不高，要(yao)確保該(gai)零件的(de)加工(gong)(gong)(gong)質量(liang)(liang)，關鍵在(zai)于(yu)解決好錐齒加工(gong)(gong)(gong)和熱處理(li)工(gong)(gong)(gong)藝(yi)環(huan)節(jie)，由(you)于(yu)該(gai)零件 屬于(yu)試制階段，為降低加工(gong)(gong)(gong)成本，我們決定在(zai)臥(wo)式銑(xian)床上(shang)采用成形齒輪(lun)銑(xian)刀銑(xian)齒法加工(gong)(gong)(gong)該(gai)錐齒輪(lun)，并通過制訂(ding)合理(li)的(de)熱處理(li)工(gong)(gong)(gong)藝(yi)方法和參數來保證該(gai)齒輪(lun)的(de)加工(gong)(gong)(gong)質量(liang)(liang)。