具體參數

混凝土拖泵支重輪(lun)(lun)部件上有(you)一配對(dui)錐(zhui)齒(chi)(chi)輪(lun)(lun)，其中一個錐(zhui)齒(chi)(chi)輪(lun)(lun)結構(gou)如圖(tu)1，材料為20CrMnTi，該齒(chi)(chi) 輪(lun)(lun)的主要(yao)技(ji)術參數(shu)為：大端端面(mian)模數(shu)為4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角為20°、切向變(bian)位系(xi)數(shu)為0、徑向變(bian)位系(xi)數(shu) 為-0.27、大端齒(chi)(chi)高0.8mm、精度等級為8CB GB11365。由于齒(chi)(chi)面(mian)硬度要(yao)求為HRC56~64，因此，齒(chi)(chi)輪(lun)(lun)需要(yao)進行滲(shen)碳淬(cui)火處理，滲(shen)層深度要(yao)求為0.8-1.2mm。

從技(ji)術要求(qiu)和(he)精(jing)度(du)等(deng)級(ji)來(lai)看，該(gai)齒(chi)輪的加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精(jing)度(du) 等(deng)級(ji)要求(qiu)不高，要確保該(gai)零件(jian)的加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)質(zhi)量，關鍵在(zai)于解(jie)決好錐齒(chi)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)(gong)(gong)藝(yi)環節，由于該(gai)零件(jian) 屬(shu)于試(shi)制(zhi)階段，為降低加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)成本，我們決定在(zai)臥式銑(xian)床(chuang)上采用成形齒(chi)輪銑(xian)刀(dao)銑(xian)齒(chi)法(fa)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)該(gai)錐齒(chi)輪，并通過制(zhi)訂合理的熱處理工(gong)(gong)(gong)(gong)(gong)藝(yi)方法(fa)和(he)參數來(lai)保證該(gai)齒(chi)輪的加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)質(zhi)量。