具體參數

混凝土拖泵支重(zhong)輪(lun)部件(jian)上(shang)有一配對錐(zhui)齒(chi)輪(lun)，其(qi)中一個錐(zhui)齒(chi)輪(lun)結構如圖(tu)1，材料(liao)為(wei)(wei)20CrMnTi，該齒(chi) 輪(lun)的主要(yao)(yao)技術(shu)參數為(wei)(wei)：大端端面(mian)(mian)模數為(wei)(wei)4、齒(chi)數20、齒(chi)形角為(wei)(wei)20°、切向變(bian)位系(xi)數為(wei)(wei)0、徑(jing)向變(bian)位系(xi)數 為(wei)(wei)-0.27、大端齒(chi)高0.8mm、精度(du)(du)等級為(wei)(wei)8CB GB11365。由(you)于齒(chi)面(mian)(mian)硬度(du)(du)要(yao)(yao)求(qiu)為(wei)(wei)HRC56~64，因此，齒(chi)輪(lun)需要(yao)(yao)進行滲(shen)碳淬火處理，滲(shen)層(ceng)深度(du)(du)要(yao)(yao)求(qiu)為(wei)(wei)0.8-1.2mm。

從(cong)技術(shu)要(yao)求和(he)精度(du)等級來看，該(gai)齒(chi)輪(lun)(lun)的(de)加(jia)(jia)工(gong)(gong)(gong)精度(du) 等級要(yao)求不高，要(yao)確(que)保該(gai)零件的(de)加(jia)(jia)工(gong)(gong)(gong)質量(liang)，關鍵在于解(jie)決(jue)好錐齒(chi)加(jia)(jia)工(gong)(gong)(gong)和(he)熱(re)處(chu)理(li)工(gong)(gong)(gong)藝環節，由(you)于該(gai)零件 屬(shu)于試制階(jie)段，為降低加(jia)(jia)工(gong)(gong)(gong)成(cheng)本(ben)，我(wo)們決(jue)定在臥(wo)式(shi)銑(xian)床上采(cai)用成(cheng)形齒(chi)輪(lun)(lun)銑(xian)刀銑(xian)齒(chi)法(fa)(fa)加(jia)(jia)工(gong)(gong)(gong)該(gai)錐齒(chi)輪(lun)(lun)，并通(tong)過制訂合理(li)的(de)熱(re)處(chu)理(li)工(gong)(gong)(gong)藝方法(fa)(fa)和(he)參數(shu)來保證(zheng)該(gai)齒(chi)輪(lun)(lun)的(de)加(jia)(jia)工(gong)(gong)(gong)質量(liang)。