具體參數

混凝土拖泵支重輪(lun)(lun)部件(jian)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)結構如(ru)圖1，材料為(wei)20CrMnTi，該齒(chi)(chi)(chi) 輪(lun)(lun)的主要技術參數(shu)(shu)為(wei)：大(da)端端面(mian)模數(shu)(shu)為(wei)4、齒(chi)(chi)(chi)數(shu)(shu)20、齒(chi)(chi)(chi)形(xing)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(da)端齒(chi)(chi)(chi)高0.8mm、精度等級為(wei)8CB GB11365。由于齒(chi)(chi)(chi)面(mian)硬度要求為(wei)HRC56~64，因(yin)此(ci)，齒(chi)(chi)(chi)輪(lun)(lun)需要進(jin)行滲(shen)碳淬火處理，滲(shen)層深度要求為(wei)0.8-1.2mm。

從技(ji)術要(yao)求(qiu)和(he)精度(du)等(deng)級來(lai)看(kan)，該(gai)齒(chi)(chi)輪(lun)的(de)加工(gong)(gong)(gong)精度(du) 等(deng)級要(yao)求(qiu)不高，要(yao)確保該(gai)零件(jian)的(de)加工(gong)(gong)(gong)質量(liang)，關鍵(jian)在于(yu)解決好錐齒(chi)(chi)加工(gong)(gong)(gong)和(he)熱處(chu)理(li)工(gong)(gong)(gong)藝環節(jie)，由于(yu)該(gai)零件(jian) 屬(shu)于(yu)試(shi)制階(jie)段，為降低加工(gong)(gong)(gong)成(cheng)本(ben)，我們決定在臥(wo)式(shi)銑床上采用成(cheng)形齒(chi)(chi)輪(lun)銑刀銑齒(chi)(chi)法(fa)加工(gong)(gong)(gong)該(gai)錐齒(chi)(chi)輪(lun)，并通過制訂合理(li)的(de)熱處(chu)理(li)工(gong)(gong)(gong)藝方(fang)法(fa)和(he)參數來(lai)保證該(gai)齒(chi)(chi)輪(lun)的(de)加工(gong)(gong)(gong)質量(liang)。