具體參數

混凝土拖泵支重輪(lun)(lun)部件上(shang)有一配(pei)對(dui)錐齒(chi)輪(lun)(lun)，其中一個錐齒(chi)輪(lun)(lun)結構如圖(tu)1，材料為(wei)20CrMnTi，該齒(chi) 輪(lun)(lun)的主要(yao)技(ji)術參(can)數為(wei)：大(da)端端面(mian)模數為(wei)4、齒(chi)數20、齒(chi)形角為(wei)20°、切(qie)向變位系數為(wei)0、徑(jing)向變位系數 為(wei)-0.27、大(da)端齒(chi)高0.8mm、精度(du)等級為(wei)8CB GB11365。由(you)于齒(chi)面(mian)硬(ying)度(du)要(yao)求為(wei)HRC56~64，因(yin)此，齒(chi)輪(lun)(lun)需要(yao)進行滲碳(tan)淬火處理，滲層深(shen)度(du)要(yao)求為(wei)0.8-1.2mm。

從技(ji)術要(yao)求和精度等級(ji)來(lai)看，該齒(chi)輪(lun)的加(jia)(jia)工(gong)(gong)(gong)精度 等級(ji)要(yao)求不(bu)高，要(yao)確保該零件的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量(liang)，關鍵(jian)在于(yu)解決好錐齒(chi)加(jia)(jia)工(gong)(gong)(gong)和熱(re)處理(li)工(gong)(gong)(gong)藝環節，由于(yu)該零件 屬于(yu)試制階段，為(wei)降(jiang)低加(jia)(jia)工(gong)(gong)(gong)成(cheng)本，我(wo)們決定在臥式(shi)銑(xian)床上(shang)采用成(cheng)形(xing)齒(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)法加(jia)(jia)工(gong)(gong)(gong)該錐齒(chi)輪(lun)，并通(tong)過制訂(ding)合理(li)的熱(re)處理(li)工(gong)(gong)(gong)藝方法和參數來(lai)保證該齒(chi)輪(lun)的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量(liang)。