具體參數

混凝土拖泵支重輪(lun)(lun)(lun)部(bu)件(jian)上(shang)有一配對錐齒輪(lun)(lun)(lun)，其中(zhong)一個錐齒輪(lun)(lun)(lun)結構如圖1，材料為(wei)20CrMnTi，該齒 輪(lun)(lun)(lun)的主要技術參(can)數(shu)(shu)為(wei)：大端(duan)(duan)端(duan)(duan)面(mian)模數(shu)(shu)為(wei)4、齒數(shu)(shu)20、齒形角為(wei)20°、切向變位系數(shu)(shu)為(wei)0、徑向變位系數(shu)(shu) 為(wei)-0.27、大端(duan)(duan)齒高0.8mm、精度等(deng)級為(wei)8CB GB11365。由于齒面(mian)硬度要求為(wei)HRC56~64，因此，齒輪(lun)(lun)(lun)需(xu)要進行滲碳淬火處理，滲層深度要求為(wei)0.8-1.2mm。

從技(ji)術要(yao)求(qiu)和精(jing)度等(deng)(deng)級來(lai)看，該(gai)齒輪的加工(gong)(gong)(gong)精(jing)度 等(deng)(deng)級要(yao)求(qiu)不高，要(yao)確保(bao)(bao)該(gai)零(ling)件的加工(gong)(gong)(gong)質量，關鍵在于(yu)解決好錐齒加工(gong)(gong)(gong)和熱處(chu)理工(gong)(gong)(gong)藝環(huan)節，由于(yu)該(gai)零(ling)件 屬于(yu)試(shi)制階(jie)段，為(wei)降低加工(gong)(gong)(gong)成(cheng)本，我們決定在臥式銑(xian)床(chuang)上(shang)采用成(cheng)形齒輪銑(xian)刀銑(xian)齒法加工(gong)(gong)(gong)該(gai)錐齒輪，并(bing)通過制訂(ding)合理的熱處(chu)理工(gong)(gong)(gong)藝方法和參數來(lai)保(bao)(bao)證該(gai)齒輪的加工(gong)(gong)(gong)質量。