具體參數

混(hun)凝(ning)土(tu)拖泵支重輪(lun)(lun)部(bu)件上有一配(pei)對(dui)錐齒(chi)輪(lun)(lun)，其中一個(ge)錐齒(chi)輪(lun)(lun)結構如圖1，材料為(wei)(wei)20CrMnTi，該齒(chi) 輪(lun)(lun)的主(zhu)要技術參數為(wei)(wei)：大(da)(da)端(duan)端(duan)面(mian)模數為(wei)(wei)4、齒(chi)數20、齒(chi)形角為(wei)(wei)20°、切(qie)向變位系數為(wei)(wei)0、徑向變位系數 為(wei)(wei)-0.27、大(da)(da)端(duan)齒(chi)高(gao)0.8mm、精(jing)度等(deng)級為(wei)(wei)8CB GB11365。由(you)于齒(chi)面(mian)硬(ying)度要求為(wei)(wei)HRC56~64，因此，齒(chi)輪(lun)(lun)需要進行滲碳淬火處理，滲層深度要求為(wei)(wei)0.8-1.2mm。

從技術(shu)要求(qiu)和(he)精度(du)等(deng)(deng)級來看，該齒(chi)(chi)(chi)輪(lun)的加(jia)工(gong)(gong)(gong)精度(du) 等(deng)(deng)級要求(qiu)不(bu)高，要確保該零(ling)件的加(jia)工(gong)(gong)(gong)質量(liang)，關鍵(jian)在(zai)于解決(jue)好錐齒(chi)(chi)(chi)加(jia)工(gong)(gong)(gong)和(he)熱(re)處理(li)工(gong)(gong)(gong)藝(yi)(yi)環(huan)節，由于該零(ling)件 屬于試制(zhi)階(jie)段(duan)，為降低加(jia)工(gong)(gong)(gong)成本(ben)，我們決(jue)定在(zai)臥式銑床(chuang)上采用成形(xing)齒(chi)(chi)(chi)輪(lun)銑刀銑齒(chi)(chi)(chi)法加(jia)工(gong)(gong)(gong)該錐齒(chi)(chi)(chi)輪(lun)，并(bing)通過制(zhi)訂(ding)合理(li)的熱(re)處理(li)工(gong)(gong)(gong)藝(yi)(yi)方法和(he)參數來保證(zheng)該齒(chi)(chi)(chi)輪(lun)的加(jia)工(gong)(gong)(gong)質量(liang)。