具體參數

混凝(ning)土拖泵支重輪部件(jian)上有一配對(dui)錐齒(chi)(chi)輪，其中一個錐齒(chi)(chi)輪結構如(ru)圖(tu)1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪的主要(yao)技術參數為(wei)(wei)：大端端面(mian)模(mo)數為(wei)(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形(xing)角為(wei)(wei)20°、切向變位系數為(wei)(wei)0、徑(jing)向變位系數 為(wei)(wei)-0.27、大端齒(chi)(chi)高0.8mm、精(jing)度等級為(wei)(wei)8CB GB11365。由(you)于齒(chi)(chi)面(mian)硬度要(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪需要(yao)進行滲(shen)碳(tan)淬火處理(li)，滲(shen)層(ceng)深度要(yao)求為(wei)(wei)0.8-1.2mm。

從(cong)技術要(yao)求(qiu)(qiu)和(he)精度等(deng)級來(lai)看，該(gai)(gai)齒(chi)輪的(de)加(jia)工(gong)(gong)(gong)精度 等(deng)級要(yao)求(qiu)(qiu)不高，要(yao)確(que)保該(gai)(gai)零件的(de)加(jia)工(gong)(gong)(gong)質量，關鍵在于解決好錐(zhui)齒(chi)加(jia)工(gong)(gong)(gong)和(he)熱(re)處(chu)理(li)工(gong)(gong)(gong)藝環節，由于該(gai)(gai)零件 屬于試制階段，為降低加(jia)工(gong)(gong)(gong)成本，我們決定在臥式銑(xian)(xian)(xian)床上采用成形齒(chi)輪銑(xian)(xian)(xian)刀銑(xian)(xian)(xian)齒(chi)法加(jia)工(gong)(gong)(gong)該(gai)(gai)錐(zhui)齒(chi)輪，并通過制訂合(he)理(li)的(de)熱(re)處(chu)理(li)工(gong)(gong)(gong)藝方法和(he)參(can)數來(lai)保證該(gai)(gai)齒(chi)輪的(de)加(jia)工(gong)(gong)(gong)質量。