具體參數

混凝(ning)土拖泵支重輪部件上有(you)一(yi)配對錐(zhui)(zhui)齒(chi)輪，其中一(yi)個錐(zhui)(zhui)齒(chi)輪結構如(ru)圖1，材料(liao)為(wei)(wei)20CrMnTi，該(gai)齒(chi) 輪的(de)主(zhu)要技(ji)術參數為(wei)(wei)：大端(duan)(duan)端(duan)(duan)面(mian)模數為(wei)(wei)4、齒(chi)數20、齒(chi)形角為(wei)(wei)20°、切向(xiang)變位系數為(wei)(wei)0、徑向(xiang)變位系數 為(wei)(wei)-0.27、大端(duan)(duan)齒(chi)高0.8mm、精度(du)等(deng)級為(wei)(wei)8CB GB11365。由于齒(chi)面(mian)硬度(du)要求為(wei)(wei)HRC56~64，因此，齒(chi)輪需要進行(xing)滲(shen)(shen)碳淬(cui)火處理，滲(shen)(shen)層深(shen)度(du)要求為(wei)(wei)0.8-1.2mm。

從技術(shu)要求(qiu)和(he)精(jing)度(du)等(deng)級來(lai)看，該(gai)齒輪(lun)的(de)加(jia)工(gong)(gong)(gong)(gong)精(jing)度(du) 等(deng)級要求(qiu)不高，要確(que)保該(gai)零件的(de)加(jia)工(gong)(gong)(gong)(gong)質(zhi)量，關鍵在于(yu)解決(jue)好錐齒加(jia)工(gong)(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)(gong)藝(yi)環節，由(you)于(yu)該(gai)零件 屬于(yu)試制階(jie)段，為降(jiang)低加(jia)工(gong)(gong)(gong)(gong)成(cheng)本，我們決(jue)定在臥(wo)式(shi)銑(xian)床上采用成(cheng)形齒輪(lun)銑(xian)刀銑(xian)齒法加(jia)工(gong)(gong)(gong)(gong)該(gai)錐齒輪(lun)，并通過制訂合理的(de)熱處理工(gong)(gong)(gong)(gong)藝(yi)方法和(he)參數來(lai)保證該(gai)齒輪(lun)的(de)加(jia)工(gong)(gong)(gong)(gong)質(zhi)量。