具體參數

混凝土拖泵支重輪(lun)部件上有一(yi)配(pei)對錐齒(chi)(chi)(chi)輪(lun)，其中一(yi)個錐齒(chi)(chi)(chi)輪(lun)結構如圖(tu)1，材料為(wei)(wei)(wei)(wei)20CrMnTi，該(gai)齒(chi)(chi)(chi) 輪(lun)的主(zhu)要技術參數(shu)(shu)(shu)為(wei)(wei)(wei)(wei)：大(da)端(duan)端(duan)面(mian)模數(shu)(shu)(shu)為(wei)(wei)(wei)(wei)4、齒(chi)(chi)(chi)數(shu)(shu)(shu)20、齒(chi)(chi)(chi)形角為(wei)(wei)(wei)(wei)20°、切向變位系(xi)數(shu)(shu)(shu)為(wei)(wei)(wei)(wei)0、徑向變位系(xi)數(shu)(shu)(shu) 為(wei)(wei)(wei)(wei)-0.27、大(da)端(duan)齒(chi)(chi)(chi)高0.8mm、精度(du)等級(ji)為(wei)(wei)(wei)(wei)8CB GB11365。由于齒(chi)(chi)(chi)面(mian)硬度(du)要求(qiu)為(wei)(wei)(wei)(wei)HRC56~64，因此，齒(chi)(chi)(chi)輪(lun)需要進(jin)行(xing)滲(shen)(shen)碳淬火處(chu)理，滲(shen)(shen)層深度(du)要求(qiu)為(wei)(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)求(qiu)和(he)精度(du)等(deng)級來(lai)看，該(gai)齒(chi)(chi)(chi)輪的(de)(de)加工(gong)精度(du) 等(deng)級要(yao)求(qiu)不(bu)高，要(yao)確(que)保該(gai)零件的(de)(de)加工(gong)質量，關(guan)鍵在于(yu)解決好錐(zhui)齒(chi)(chi)(chi)加工(gong)和(he)熱處理(li)工(gong)藝環節，由于(yu)該(gai)零件 屬于(yu)試(shi)制階段，為降低加工(gong)成本，我們決定(ding)在臥式(shi)銑床(chuang)上(shang)采用成形齒(chi)(chi)(chi)輪銑刀(dao)銑齒(chi)(chi)(chi)法(fa)加工(gong)該(gai)錐(zhui)齒(chi)(chi)(chi)輪，并通過制訂(ding)合理(li)的(de)(de)熱處理(li)工(gong)藝方法(fa)和(he)參(can)數來(lai)保證該(gai)齒(chi)(chi)(chi)輪的(de)(de)加工(gong)質量。