具體參數

混(hun)凝(ning)土拖泵支(zhi)重(zhong)輪(lun)(lun)部件上有(you)一配對錐(zhui)齒(chi)(chi)(chi)輪(lun)(lun)，其中一個錐(zhui)齒(chi)(chi)(chi)輪(lun)(lun)結構(gou)如圖1，材(cai)料為(wei)20CrMnTi，該齒(chi)(chi)(chi) 輪(lun)(lun)的(de)主要技術參數(shu)為(wei)：大端(duan)(duan)端(duan)(duan)面模(mo)數(shu)為(wei)4、齒(chi)(chi)(chi)數(shu)20、齒(chi)(chi)(chi)形角為(wei)20°、切(qie)向變位系數(shu)為(wei)0、徑向變位系數(shu) 為(wei)-0.27、大端(duan)(duan)齒(chi)(chi)(chi)高(gao)0.8mm、精度等級為(wei)8CB GB11365。由于(yu)齒(chi)(chi)(chi)面硬度要求為(wei)HRC56~64，因此，齒(chi)(chi)(chi)輪(lun)(lun)需要進行滲碳淬火處理，滲層深度要求為(wei)0.8-1.2mm。

從技術要(yao)(yao)求(qiu)和(he)精(jing)度等級(ji)(ji)來(lai)看，該(gai)齒(chi)輪(lun)的加(jia)工(gong)(gong)(gong)(gong)精(jing)度 等級(ji)(ji)要(yao)(yao)求(qiu)不高，要(yao)(yao)確保該(gai)零件(jian)的加(jia)工(gong)(gong)(gong)(gong)質量，關鍵在于解決好(hao)錐齒(chi)加(jia)工(gong)(gong)(gong)(gong)和(he)熱處(chu)理(li)(li)工(gong)(gong)(gong)(gong)藝(yi)(yi)環節，由于該(gai)零件(jian) 屬于試制(zhi)(zhi)階(jie)段，為降低加(jia)工(gong)(gong)(gong)(gong)成(cheng)本(ben)，我們決定(ding)在臥式(shi)銑(xian)床上采用成(cheng)形齒(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)法加(jia)工(gong)(gong)(gong)(gong)該(gai)錐齒(chi)輪(lun)，并通過制(zhi)(zhi)訂合理(li)(li)的熱處(chu)理(li)(li)工(gong)(gong)(gong)(gong)藝(yi)(yi)方法和(he)參(can)數來(lai)保證(zheng)該(gai)齒(chi)輪(lun)的加(jia)工(gong)(gong)(gong)(gong)質量。