具體參數

混凝(ning)土拖泵支重輪部件上有一配(pei)對錐(zhui)齒輪，其(qi)中一個錐(zhui)齒輪結構如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒 輪的(de)主要(yao)技術參(can)數為(wei)(wei)(wei)：大端端面(mian)模數為(wei)(wei)(wei)4、齒數20、齒形角為(wei)(wei)(wei)20°、切向(xiang)變位系數為(wei)(wei)(wei)0、徑向(xiang)變位系數 為(wei)(wei)(wei)-0.27、大端齒高(gao)0.8mm、精度等級為(wei)(wei)(wei)8CB GB11365。由(you)于齒面(mian)硬度要(yao)求(qiu)為(wei)(wei)(wei)HRC56~64，因(yin)此，齒輪需要(yao)進行滲碳(tan)淬火(huo)處理，滲層深度要(yao)求(qiu)為(wei)(wei)(wei)0.8-1.2mm。

從技術要求和精度等級來看，該(gai)(gai)齒輪(lun)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)精度 等級要求不高，要確(que)保該(gai)(gai)零(ling)件的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)質(zhi)(zhi)量(liang)，關(guan)鍵在(zai)于(yu)(yu)解決好錐齒加(jia)(jia)(jia)工(gong)(gong)(gong)和熱(re)處理(li)工(gong)(gong)(gong)藝(yi)環節，由于(yu)(yu)該(gai)(gai)零(ling)件 屬于(yu)(yu)試制階(jie)段，為降低加(jia)(jia)(jia)工(gong)(gong)(gong)成本(ben)，我(wo)們決定在(zai)臥(wo)式銑床上(shang)采用成形齒輪(lun)銑刀銑齒法(fa)加(jia)(jia)(jia)工(gong)(gong)(gong)該(gai)(gai)錐齒輪(lun)，并通過制訂合理(li)的(de)熱(re)處理(li)工(gong)(gong)(gong)藝(yi)方法(fa)和參(can)數來保證該(gai)(gai)齒輪(lun)的(de)加(jia)(jia)(jia)工(gong)(gong)(gong)質(zhi)(zhi)量(liang)。