具體參數

混凝土拖泵支重輪部(bu)件上有一(yi)配對錐齒(chi)輪，其中一(yi)個錐齒(chi)輪結(jie)構如圖1，材(cai)料為(wei)(wei)20CrMnTi，該齒(chi) 輪的主(zhu)要技術參數為(wei)(wei)：大端(duan)端(duan)面(mian)模數為(wei)(wei)4、齒(chi)數20、齒(chi)形角為(wei)(wei)20°、切向變位系(xi)(xi)數為(wei)(wei)0、徑(jing)向變位系(xi)(xi)數 為(wei)(wei)-0.27、大端(duan)齒(chi)高0.8mm、精度(du)等級為(wei)(wei)8CB GB11365。由于齒(chi)面(mian)硬度(du)要求(qiu)為(wei)(wei)HRC56~64，因此(ci)，齒(chi)輪需要進(jin)行滲碳(tan)淬火(huo)處理，滲層深(shen)度(du)要求(qiu)為(wei)(wei)0.8-1.2mm。

從(cong)技術要(yao)求(qiu)和(he)精(jing)度等級來(lai)看，該齒(chi)輪的(de)加(jia)工(gong)(gong)(gong)精(jing)度 等級要(yao)求(qiu)不高(gao)，要(yao)確保該零(ling)件(jian)的(de)加(jia)工(gong)(gong)(gong)質量(liang)，關鍵在(zai)于(yu)解(jie)決好錐(zhui)齒(chi)加(jia)工(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)藝環(huan)節，由(you)于(yu)該零(ling)件(jian) 屬于(yu)試(shi)制(zhi)階段，為降低加(jia)工(gong)(gong)(gong)成本，我(wo)們(men)決定在(zai)臥式銑(xian)床上采用成形(xing)齒(chi)輪銑(xian)刀銑(xian)齒(chi)法(fa)加(jia)工(gong)(gong)(gong)該錐(zhui)齒(chi)輪，并通過(guo)制(zhi)訂合理的(de)熱處理工(gong)(gong)(gong)藝方法(fa)和(he)參數來(lai)保證該齒(chi)輪的(de)加(jia)工(gong)(gong)(gong)質量(liang)。