具體參數

混凝土拖(tuo)泵支重輪部(bu)件(jian)上有一配(pei)對錐齒輪，其中一個(ge)錐齒輪結構如(ru)圖1，材(cai)料(liao)為(wei)(wei)(wei)(wei)20CrMnTi，該(gai)齒 輪的主要(yao)(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°、切向變(bian)(bian)位系數(shu)(shu)為(wei)(wei)(wei)(wei)0、徑向變(bian)(bian)位系數(shu)(shu) 為(wei)(wei)(wei)(wei)-0.27、大端(duan)齒高0.8mm、精度等級(ji)為(wei)(wei)(wei)(wei)8CB GB11365。由于齒面(mian)硬度要(yao)(yao)求為(wei)(wei)(wei)(wei)HRC56~64，因此，齒輪需(xu)要(yao)(yao)進行滲碳(tan)淬火處(chu)理，滲層深度要(yao)(yao)求為(wei)(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)求和精度等級(ji)來看，該(gai)(gai)齒輪的加工(gong)(gong)(gong)(gong)精度 等級(ji)要(yao)求不高，要(yao)確保該(gai)(gai)零件(jian)的加工(gong)(gong)(gong)(gong)質(zhi)量，關(guan)鍵(jian)在(zai)于(yu)(yu)解(jie)決(jue)好錐齒加工(gong)(gong)(gong)(gong)和熱處理工(gong)(gong)(gong)(gong)藝環節，由(you)于(yu)(yu)該(gai)(gai)零件(jian) 屬(shu)于(yu)(yu)試制階段，為降低加工(gong)(gong)(gong)(gong)成本，我們(men)決(jue)定在(zai)臥式銑床上采(cai)用(yong)成形齒輪銑刀銑齒法加工(gong)(gong)(gong)(gong)該(gai)(gai)錐齒輪，并通過制訂合理的熱處理工(gong)(gong)(gong)(gong)藝方法和參數來保證該(gai)(gai)齒輪的加工(gong)(gong)(gong)(gong)質(zhi)量。