具體參數

混凝土(tu)拖泵支重輪(lun)(lun)部件上有一(yi)配(pei)對錐(zhui)齒(chi)輪(lun)(lun)，其(qi)中一(yi)個(ge)錐(zhui)齒(chi)輪(lun)(lun)結(jie)構(gou)如圖1，材料為20CrMnTi，該齒(chi) 輪(lun)(lun)的主要技術參數(shu)為：大端端面模數(shu)為4、齒(chi)數(shu)20、齒(chi)形角為20°、切向變位系數(shu)為0、徑向變位系數(shu) 為-0.27、大端齒(chi)高0.8mm、精(jing)度(du)等級(ji)為8CB GB11365。由于齒(chi)面硬(ying)度(du)要求為HRC56~64，因(yin)此，齒(chi)輪(lun)(lun)需(xu)要進行(xing)滲(shen)(shen)碳(tan)淬火處(chu)理，滲(shen)(shen)層深度(du)要求為0.8-1.2mm。

從技術要(yao)求和(he)(he)精度等(deng)級(ji)來(lai)看，該(gai)(gai)齒輪(lun)的加(jia)工(gong)(gong)(gong)精度 等(deng)級(ji)要(yao)求不高，要(yao)確(que)保該(gai)(gai)零件(jian)(jian)的加(jia)工(gong)(gong)(gong)質(zhi)量，關鍵(jian)在于解決好錐齒加(jia)工(gong)(gong)(gong)和(he)(he)熱(re)處理(li)(li)工(gong)(gong)(gong)藝環節，由于該(gai)(gai)零件(jian)(jian) 屬于試制(zhi)階(jie)段，為降低加(jia)工(gong)(gong)(gong)成本，我們決定在臥式銑床上采用成形(xing)齒輪(lun)銑刀銑齒法(fa)加(jia)工(gong)(gong)(gong)該(gai)(gai)錐齒輪(lun)，并通過制(zhi)訂(ding)合理(li)(li)的熱(re)處理(li)(li)工(gong)(gong)(gong)藝方法(fa)和(he)(he)參數來(lai)保證該(gai)(gai)齒輪(lun)的加(jia)工(gong)(gong)(gong)質(zhi)量。