具體參數

混(hun)凝土(tu)拖泵支重(zhong)輪部件上(shang)有一配對錐齒輪，其(qi)中一個錐齒輪結構如圖1，材料(liao)為(wei)(wei)20CrMnTi，該齒 輪的主要(yao)技(ji)術參(can)數為(wei)(wei)：大端端面模數為(wei)(wei)4、齒數20、齒形角(jiao)為(wei)(wei)20°、切向變位系(xi)數為(wei)(wei)0、徑向變位系(xi)數 為(wei)(wei)-0.27、大端齒高0.8mm、精度等級為(wei)(wei)8CB GB11365。由于(yu)齒面硬(ying)度要(yao)求(qiu)(qiu)為(wei)(wei)HRC56~64，因此，齒輪需要(yao)進行滲(shen)碳(tan)淬火處理，滲(shen)層(ceng)深度要(yao)求(qiu)(qiu)為(wei)(wei)0.8-1.2mm。

從(cong)技(ji)術(shu)要(yao)(yao)求和(he)精度(du)等級來看，該(gai)齒(chi)(chi)輪的(de)(de)加(jia)工(gong)(gong)(gong)精度(du) 等級要(yao)(yao)求不高，要(yao)(yao)確保該(gai)零件的(de)(de)加(jia)工(gong)(gong)(gong)質量，關鍵(jian)在于(yu)解決好錐(zhui)齒(chi)(chi)加(jia)工(gong)(gong)(gong)和(he)熱處(chu)理(li)工(gong)(gong)(gong)藝環節，由于(yu)該(gai)零件 屬于(yu)試制(zhi)階(jie)段，為降(jiang)低加(jia)工(gong)(gong)(gong)成本，我們決定在臥式銑(xian)床上采用(yong)成形(xing)齒(chi)(chi)輪銑(xian)刀銑(xian)齒(chi)(chi)法加(jia)工(gong)(gong)(gong)該(gai)錐(zhui)齒(chi)(chi)輪，并通過(guo)制(zhi)訂合理(li)的(de)(de)熱處(chu)理(li)工(gong)(gong)(gong)藝方法和(he)參(can)數(shu)來保證(zheng)該(gai)齒(chi)(chi)輪的(de)(de)加(jia)工(gong)(gong)(gong)質量。