具體參數

混凝土(tu)拖泵支重輪部件上有一配對(dui)錐齒(chi)(chi)(chi)輪，其中一個錐齒(chi)(chi)(chi)輪結(jie)構如(ru)圖1，材(cai)料為(wei)(wei)20CrMnTi，該齒(chi)(chi)(chi) 輪的主要(yao)技術參(can)數(shu)為(wei)(wei)：大端端面模數(shu)為(wei)(wei)4、齒(chi)(chi)(chi)數(shu)20、齒(chi)(chi)(chi)形(xing)角為(wei)(wei)20°、切(qie)向變位系數(shu)為(wei)(wei)0、徑向變位系數(shu) 為(wei)(wei)-0.27、大端齒(chi)(chi)(chi)高(gao)0.8mm、精度等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)(chi)面硬度要(yao)求(qiu)為(wei)(wei)HRC56~64，因此，齒(chi)(chi)(chi)輪需要(yao)進行滲碳淬火處(chu)理(li)，滲層深(shen)度要(yao)求(qiu)為(wei)(wei)0.8-1.2mm。

從技術(shu)要(yao)(yao)求和(he)精度等(deng)級來(lai)看，該(gai)齒輪的(de)(de)加工(gong)(gong)(gong)(gong)精度 等(deng)級要(yao)(yao)求不(bu)高，要(yao)(yao)確保該(gai)零件的(de)(de)加工(gong)(gong)(gong)(gong)質量，關(guan)鍵在(zai)于(yu)解決好錐齒加工(gong)(gong)(gong)(gong)和(he)熱(re)處理(li)工(gong)(gong)(gong)(gong)藝(yi)環節(jie)，由(you)于(yu)該(gai)零件 屬于(yu)試制(zhi)階段，為降低(di)加工(gong)(gong)(gong)(gong)成本，我們決定在(zai)臥式銑(xian)床上采用(yong)成形齒輪銑(xian)刀銑(xian)齒法加工(gong)(gong)(gong)(gong)該(gai)錐齒輪，并通過制(zhi)訂合(he)理(li)的(de)(de)熱(re)處理(li)工(gong)(gong)(gong)(gong)藝(yi)方法和(he)參數來(lai)保證(zheng)該(gai)齒輪的(de)(de)加工(gong)(gong)(gong)(gong)質量。