具體參數

混凝土拖(tuo)泵支(zhi)重輪部件(jian)上有一(yi)配對錐齒(chi)(chi)輪，其中一(yi)個(ge)錐齒(chi)(chi)輪結構如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪的主要技術參數為(wei)(wei)(wei)：大(da)端端面模數為(wei)(wei)(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形角為(wei)(wei)(wei)20°、切(qie)向變(bian)位系數為(wei)(wei)(wei)0、徑向變(bian)位系數 為(wei)(wei)(wei)-0.27、大(da)端齒(chi)(chi)高0.8mm、精度(du)(du)等(deng)級為(wei)(wei)(wei)8CB GB11365。由于齒(chi)(chi)面硬度(du)(du)要求(qiu)(qiu)為(wei)(wei)(wei)HRC56~64，因(yin)此，齒(chi)(chi)輪需要進行滲碳淬(cui)火處理，滲層深度(du)(du)要求(qiu)(qiu)為(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)求(qiu)和精(jing)度(du)等(deng)(deng)級來看，該齒(chi)輪(lun)(lun)的(de)(de)加(jia)(jia)工(gong)(gong)精(jing)度(du) 等(deng)(deng)級要(yao)求(qiu)不高，要(yao)確(que)保該零件的(de)(de)加(jia)(jia)工(gong)(gong)質量，關(guan)鍵在于解決好錐齒(chi)加(jia)(jia)工(gong)(gong)和熱(re)處(chu)理工(gong)(gong)藝(yi)環節，由于該零件 屬于試制階段，為降低加(jia)(jia)工(gong)(gong)成(cheng)本，我們決定在臥(wo)式(shi)銑床上采(cai)用成(cheng)形(xing)齒(chi)輪(lun)(lun)銑刀銑齒(chi)法加(jia)(jia)工(gong)(gong)該錐齒(chi)輪(lun)(lun)，并通(tong)過(guo)制訂合理的(de)(de)熱(re)處(chu)理工(gong)(gong)藝(yi)方(fang)法和參數來保證該齒(chi)輪(lun)(lun)的(de)(de)加(jia)(jia)工(gong)(gong)質量。