具體參數

混凝土(tu)拖泵支(zhi)重輪(lun)(lun)(lun)部件上(shang)有一配(pei)對錐齒(chi)(chi)輪(lun)(lun)(lun)，其中一個錐齒(chi)(chi)輪(lun)(lun)(lun)結構如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)(lun)(lun)的主要(yao)(yao)技術參(can)數(shu)為(wei)(wei)(wei)：大端端面(mian)模數(shu)為(wei)(wei)(wei)4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角為(wei)(wei)(wei)20°、切(qie)向(xiang)變位系數(shu)為(wei)(wei)(wei)0、徑向(xiang)變位系數(shu) 為(wei)(wei)(wei)-0.27、大端齒(chi)(chi)高0.8mm、精度(du)等級(ji)為(wei)(wei)(wei)8CB GB11365。由(you)于(yu)齒(chi)(chi)面(mian)硬度(du)要(yao)(yao)求為(wei)(wei)(wei)HRC56~64，因此(ci)，齒(chi)(chi)輪(lun)(lun)(lun)需要(yao)(yao)進(jin)行滲碳淬火處理(li)，滲層(ceng)深度(du)要(yao)(yao)求為(wei)(wei)(wei)0.8-1.2mm。

從技術要求和精度等級來看，該(gai)齒(chi)(chi)(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)(gong)精度 等級要求不(bu)高，要確保該(gai)零件的(de)加(jia)工(gong)(gong)(gong)質(zhi)(zhi)量(liang)，關鍵在(zai)于(yu)解決好錐(zhui)齒(chi)(chi)(chi)(chi)加(jia)工(gong)(gong)(gong)和熱處理(li)工(gong)(gong)(gong)藝(yi)環節，由于(yu)該(gai)零件 屬(shu)于(yu)試制(zhi)階(jie)段，為降低加(jia)工(gong)(gong)(gong)成本，我們(men)決定(ding)在(zai)臥式銑床上采用成形(xing)齒(chi)(chi)(chi)(chi)輪(lun)銑刀銑齒(chi)(chi)(chi)(chi)法加(jia)工(gong)(gong)(gong)該(gai)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)，并通過制(zhi)訂(ding)合理(li)的(de)熱處理(li)工(gong)(gong)(gong)藝(yi)方法和參數(shu)來保證該(gai)齒(chi)(chi)(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)(gong)質(zhi)(zhi)量(liang)。