具體參數

混凝土拖(tuo)泵支重(zhong)輪(lun)(lun)部件上有(you)一配對錐(zhui)齒輪(lun)(lun)，其中一個(ge)錐(zhui)齒輪(lun)(lun)結構(gou)如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒 輪(lun)(lun)的主要(yao)技術(shu)參數(shu)(shu)為(wei)(wei)(wei)：大端(duan)(duan)端(duan)(duan)面模數(shu)(shu)為(wei)(wei)(wei)4、齒數(shu)(shu)20、齒形角(jiao)為(wei)(wei)(wei)20°、切向變位(wei)系數(shu)(shu)為(wei)(wei)(wei)0、徑向變位(wei)系數(shu)(shu) 為(wei)(wei)(wei)-0.27、大端(duan)(duan)齒高0.8mm、精度等級(ji)為(wei)(wei)(wei)8CB GB11365。由(you)于齒面硬(ying)度要(yao)求為(wei)(wei)(wei)HRC56~64，因此，齒輪(lun)(lun)需要(yao)進(jin)行滲碳(tan)淬(cui)火處理，滲層深度要(yao)求為(wei)(wei)(wei)0.8-1.2mm。

從技術(shu)要(yao)(yao)求和(he)精度等級來看，該齒輪(lun)的(de)加(jia)工(gong)(gong)(gong)(gong)(gong)精度 等級要(yao)(yao)求不高，要(yao)(yao)確保(bao)該零件(jian)(jian)的(de)加(jia)工(gong)(gong)(gong)(gong)(gong)質量，關鍵(jian)在于(yu)解決好錐齒加(jia)工(gong)(gong)(gong)(gong)(gong)和(he)熱處(chu)理(li)工(gong)(gong)(gong)(gong)(gong)藝(yi)環(huan)節，由于(yu)該零件(jian)(jian) 屬于(yu)試制(zhi)階段，為降低加(jia)工(gong)(gong)(gong)(gong)(gong)成(cheng)本，我們(men)決定(ding)在臥式銑床上采用成(cheng)形(xing)齒輪(lun)銑刀銑齒法(fa)加(jia)工(gong)(gong)(gong)(gong)(gong)該錐齒輪(lun)，并通(tong)過制(zhi)訂合(he)理(li)的(de)熱處(chu)理(li)工(gong)(gong)(gong)(gong)(gong)藝(yi)方法(fa)和(he)參數來保(bao)證該齒輪(lun)的(de)加(jia)工(gong)(gong)(gong)(gong)(gong)質量。