具體參數

混凝土拖(tuo)泵支重輪(lun)部(bu)件上有一(yi)配對(dui)錐齒(chi)(chi)(chi)輪(lun)，其(qi)中一(yi)個錐齒(chi)(chi)(chi)輪(lun)結構如圖(tu)1，材料為(wei)20CrMnTi，該齒(chi)(chi)(chi) 輪(lun)的主要技術參數(shu)(shu)為(wei)：大(da)(da)端(duan)端(duan)面(mian)模數(shu)(shu)為(wei)4、齒(chi)(chi)(chi)數(shu)(shu)20、齒(chi)(chi)(chi)形角為(wei)20°、切(qie)向(xiang)變位系(xi)數(shu)(shu)為(wei)0、徑(jing)向(xiang)變位系(xi)數(shu)(shu) 為(wei)-0.27、大(da)(da)端(duan)齒(chi)(chi)(chi)高0.8mm、精度等級(ji)為(wei)8CB GB11365。由(you)于齒(chi)(chi)(chi)面(mian)硬(ying)度要求為(wei)HRC56~64，因此，齒(chi)(chi)(chi)輪(lun)需要進(jin)行滲碳(tan)淬火(huo)處理，滲層深度要求為(wei)0.8-1.2mm。

從技(ji)術(shu)要求(qiu)(qiu)和(he)精度等級(ji)(ji)來(lai)看，該齒(chi)輪(lun)(lun)的(de)加(jia)工(gong)(gong)(gong)精度 等級(ji)(ji)要求(qiu)(qiu)不高(gao)，要確保該零件(jian)的(de)加(jia)工(gong)(gong)(gong)質(zhi)量，關(guan)鍵在(zai)于(yu)(yu)解決(jue)好(hao)錐齒(chi)加(jia)工(gong)(gong)(gong)和(he)熱處(chu)理工(gong)(gong)(gong)藝環節(jie)，由于(yu)(yu)該零件(jian) 屬于(yu)(yu)試制階段，為降低加(jia)工(gong)(gong)(gong)成(cheng)本，我們(men)決(jue)定在(zai)臥式銑床上采(cai)用(yong)成(cheng)形(xing)齒(chi)輪(lun)(lun)銑刀銑齒(chi)法加(jia)工(gong)(gong)(gong)該錐齒(chi)輪(lun)(lun)，并通過制訂合(he)理的(de)熱處(chu)理工(gong)(gong)(gong)藝方法和(he)參數來(lai)保證該齒(chi)輪(lun)(lun)的(de)加(jia)工(gong)(gong)(gong)質(zhi)量。