具體參數

混凝土拖泵支重(zhong)輪(lun)(lun)部(bu)件上有一配(pei)對錐(zhui)齒(chi)(chi)輪(lun)(lun)，其中一個錐(zhui)齒(chi)(chi)輪(lun)(lun)結構如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)(lun)的主要(yao)技術參(can)數(shu)(shu)(shu)為(wei)(wei)(wei)：大(da)端端面(mian)模數(shu)(shu)(shu)為(wei)(wei)(wei)4、齒(chi)(chi)數(shu)(shu)(shu)20、齒(chi)(chi)形角為(wei)(wei)(wei)20°、切(qie)向變(bian)位系(xi)數(shu)(shu)(shu)為(wei)(wei)(wei)0、徑向變(bian)位系(xi)數(shu)(shu)(shu) 為(wei)(wei)(wei)-0.27、大(da)端齒(chi)(chi)高0.8mm、精度等級為(wei)(wei)(wei)8CB GB11365。由于(yu)齒(chi)(chi)面(mian)硬度要(yao)求(qiu)為(wei)(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)(lun)需(xu)要(yao)進行(xing)滲(shen)碳淬火處(chu)理，滲(shen)層深度要(yao)求(qiu)為(wei)(wei)(wei)0.8-1.2mm。

從技術(shu)要求和精度等(deng)級來看，該齒(chi)輪的(de)(de)加工(gong)精度 等(deng)級要求不高，要確保該零件(jian)的(de)(de)加工(gong)質量(liang)，關鍵在(zai)于(yu)解決好錐齒(chi)加工(gong)和熱(re)處(chu)理(li)工(gong)藝環節，由(you)于(yu)該零件(jian) 屬于(yu)試(shi)制階段，為降低加工(gong)成本，我(wo)們決定在(zai)臥式銑床(chuang)上采用(yong)成形齒(chi)輪銑刀銑齒(chi)法加工(gong)該錐齒(chi)輪，并通(tong)過制訂合理(li)的(de)(de)熱(re)處(chu)理(li)工(gong)藝方法和參數來保證該齒(chi)輪的(de)(de)加工(gong)質量(liang)。