具體參數

混凝土(tu)拖泵支重輪(lun)(lun)部件上有一配對錐(zhui)齒(chi)(chi)輪(lun)(lun)，其中(zhong)一個(ge)錐(zhui)齒(chi)(chi)輪(lun)(lun)結構如圖1，材(cai)料(liao)為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)(lun)的(de)主要技(ji)術參數(shu)(shu)為(wei)(wei)(wei)：大端(duan)(duan)端(duan)(duan)面(mian)模數(shu)(shu)為(wei)(wei)(wei)4、齒(chi)(chi)數(shu)(shu)20、齒(chi)(chi)形角(jiao)為(wei)(wei)(wei)20°、切(qie)向變位系(xi)數(shu)(shu)為(wei)(wei)(wei)0、徑向變位系(xi)數(shu)(shu) 為(wei)(wei)(wei)-0.27、大端(duan)(duan)齒(chi)(chi)高0.8mm、精度等(deng)級為(wei)(wei)(wei)8CB GB11365。由于齒(chi)(chi)面(mian)硬(ying)度要求為(wei)(wei)(wei)HRC56~64，因(yin)此，齒(chi)(chi)輪(lun)(lun)需(xu)要進行滲(shen)碳淬火處(chu)理，滲(shen)層深度要求為(wei)(wei)(wei)0.8-1.2mm。

從技術要求和(he)精(jing)(jing)度(du)(du)等級來看，該齒(chi)輪的加工(gong)(gong)(gong)精(jing)(jing)度(du)(du) 等級要求不高，要確保該零件(jian)(jian)的加工(gong)(gong)(gong)質(zhi)量，關(guan)鍵(jian)在(zai)于(yu)(yu)解決好錐(zhui)齒(chi)加工(gong)(gong)(gong)和(he)熱(re)處(chu)理(li)工(gong)(gong)(gong)藝環節，由于(yu)(yu)該零件(jian)(jian) 屬于(yu)(yu)試制(zhi)階段，為降低加工(gong)(gong)(gong)成(cheng)本，我們決定在(zai)臥式銑床(chuang)上采用成(cheng)形(xing)齒(chi)輪銑刀(dao)銑齒(chi)法加工(gong)(gong)(gong)該錐(zhui)齒(chi)輪，并通過制(zhi)訂合理(li)的熱(re)處(chu)理(li)工(gong)(gong)(gong)藝方法和(he)參數來保證該齒(chi)輪的加工(gong)(gong)(gong)質(zhi)量。