具體參數

混(hun)凝土(tu)拖泵支重輪部(bu)件上有一配(pei)對錐齒(chi)(chi)輪，其中一個(ge)錐齒(chi)(chi)輪結(jie)構如圖1，材料為(wei)20CrMnTi，該齒(chi)(chi) 輪的(de)主要技術參數為(wei)：大(da)端端面模數為(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形角為(wei)20°、切向變位系數為(wei)0、徑向變位系數 為(wei)-0.27、大(da)端齒(chi)(chi)高0.8mm、精(jing)度等級為(wei)8CB GB11365。由于齒(chi)(chi)面硬度要求(qiu)為(wei)HRC56~64，因此，齒(chi)(chi)輪需(xu)要進行(xing)滲(shen)碳淬火處理，滲(shen)層深度要求(qiu)為(wei)0.8-1.2mm。

從技術要(yao)求和精度(du)等級來看，該齒(chi)輪(lun)的(de)加工(gong)(gong)(gong)(gong)精度(du) 等級要(yao)求不高，要(yao)確保該零件的(de)加工(gong)(gong)(gong)(gong)質量，關(guan)鍵(jian)在(zai)于解決好錐齒(chi)加工(gong)(gong)(gong)(gong)和熱處理(li)工(gong)(gong)(gong)(gong)藝環(huan)節，由于該零件 屬于試制階段，為降低(di)加工(gong)(gong)(gong)(gong)成(cheng)本，我們決定在(zai)臥(wo)式(shi)銑床上采用成(cheng)形(xing)齒(chi)輪(lun)銑刀(dao)銑齒(chi)法加工(gong)(gong)(gong)(gong)該錐齒(chi)輪(lun)，并通過制訂合理(li)的(de)熱處理(li)工(gong)(gong)(gong)(gong)藝方法和參(can)數來保證(zheng)該齒(chi)輪(lun)的(de)加工(gong)(gong)(gong)(gong)質量。