具體參數

混凝(ning)土拖泵(beng)支重(zhong)輪(lun)(lun)部件上有一(yi)配對(dui)錐齒(chi)輪(lun)(lun)，其中一(yi)個錐齒(chi)輪(lun)(lun)結構如(ru)圖1，材料為20CrMnTi，該(gai)齒(chi) 輪(lun)(lun)的主要(yao)技術參數(shu)為：大端端面(mian)模數(shu)為4、齒(chi)數(shu)20、齒(chi)形角為20°、切(qie)向變位(wei)系數(shu)為0、徑向變位(wei)系數(shu) 為-0.27、大端齒(chi)高0.8mm、精度(du)(du)等級為8CB GB11365。由于(yu)齒(chi)面(mian)硬度(du)(du)要(yao)求為HRC56~64，因此，齒(chi)輪(lun)(lun)需要(yao)進行滲(shen)碳(tan)淬火處理，滲(shen)層深度(du)(du)要(yao)求為0.8-1.2mm。

從技(ji)術要求和精(jing)度等級(ji)來(lai)看(kan)，該(gai)(gai)齒(chi)輪(lun)的(de)加工(gong)(gong)(gong)精(jing)度 等級(ji)要求不高，要確保(bao)該(gai)(gai)零件的(de)加工(gong)(gong)(gong)質(zhi)量(liang)，關(guan)鍵在于解決好錐齒(chi)加工(gong)(gong)(gong)和熱處理(li)工(gong)(gong)(gong)藝(yi)環(huan)節，由(you)于該(gai)(gai)零件 屬于試制階段，為降低加工(gong)(gong)(gong)成(cheng)本，我們決定在臥式(shi)銑(xian)(xian)床上采用成(cheng)形齒(chi)輪(lun)銑(xian)(xian)刀銑(xian)(xian)齒(chi)法(fa)加工(gong)(gong)(gong)該(gai)(gai)錐齒(chi)輪(lun)，并通(tong)過制訂(ding)合理(li)的(de)熱處理(li)工(gong)(gong)(gong)藝(yi)方法(fa)和參數來(lai)保(bao)證該(gai)(gai)齒(chi)輪(lun)的(de)加工(gong)(gong)(gong)質(zhi)量(liang)。