具體參數

混凝(ning)土拖泵支重輪部件上有一配對錐齒(chi)(chi)(chi)輪，其中一個錐齒(chi)(chi)(chi)輪結構如(ru)圖1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi)(chi) 輪的主要(yao)(yao)(yao)技術(shu)參(can)數(shu)為(wei)(wei)：大(da)(da)端端面(mian)(mian)模數(shu)為(wei)(wei)4、齒(chi)(chi)(chi)數(shu)20、齒(chi)(chi)(chi)形(xing)角為(wei)(wei)20°、切向(xiang)變位系(xi)數(shu)為(wei)(wei)0、徑向(xiang)變位系(xi)數(shu) 為(wei)(wei)-0.27、大(da)(da)端齒(chi)(chi)(chi)高0.8mm、精(jing)度(du)等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)(chi)面(mian)(mian)硬度(du)要(yao)(yao)(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)(chi)輪需要(yao)(yao)(yao)進行滲(shen)碳淬(cui)火處理，滲(shen)層深度(du)要(yao)(yao)(yao)求為(wei)(wei)0.8-1.2mm。

從技術要求和精度等級(ji)來(lai)看，該(gai)齒(chi)輪(lun)的(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)精度 等級(ji)要求不(bu)高，要確保該(gai)零件的(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)質量，關鍵在于解(jie)決好錐齒(chi)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)和熱處(chu)理(li)(li)工(gong)(gong)藝環(huan)節(jie)，由(you)于該(gai)零件 屬于試制階段，為降低加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)成本，我們(men)決定在臥式(shi)銑(xian)床上(shang)采(cai)用成形齒(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)法加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)該(gai)錐齒(chi)輪(lun)，并通過制訂合(he)理(li)(li)的(de)熱處(chu)理(li)(li)工(gong)(gong)藝方(fang)法和參數來(lai)保證(zheng)該(gai)齒(chi)輪(lun)的(de)加(jia)(jia)(jia)(jia)(jia)工(gong)(gong)質量。