具體參數

混凝土拖(tuo)泵支重輪(lun)部件上有一(yi)配對錐(zhui)齒(chi)(chi)輪(lun)，其(qi)中一(yi)個(ge)錐(zhui)齒(chi)(chi)輪(lun)結構如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)的主要技術參數為(wei)(wei)(wei)：大端端面(mian)模數為(wei)(wei)(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形(xing)角為(wei)(wei)(wei)20°、切向變(bian)(bian)位系(xi)數為(wei)(wei)(wei)0、徑(jing)向變(bian)(bian)位系(xi)數 為(wei)(wei)(wei)-0.27、大端齒(chi)(chi)高0.8mm、精(jing)度等級為(wei)(wei)(wei)8CB GB11365。由于齒(chi)(chi)面(mian)硬度要求為(wei)(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)需要進行滲碳淬(cui)火處(chu)理，滲層深度要求為(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)求和(he)精(jing)度等級來看，該(gai)(gai)齒(chi)(chi)輪(lun)的加(jia)工(gong)(gong)(gong)精(jing)度 等級要(yao)求不高，要(yao)確保(bao)該(gai)(gai)零件(jian)的加(jia)工(gong)(gong)(gong)質量，關鍵在于解(jie)決好錐齒(chi)(chi)加(jia)工(gong)(gong)(gong)和(he)熱處(chu)理(li)工(gong)(gong)(gong)藝環(huan)節，由于該(gai)(gai)零件(jian) 屬于試制階段，為(wei)降(jiang)低加(jia)工(gong)(gong)(gong)成(cheng)本，我(wo)們決定在臥式銑(xian)床上采(cai)用(yong)成(cheng)形齒(chi)(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)(chi)法加(jia)工(gong)(gong)(gong)該(gai)(gai)錐齒(chi)(chi)輪(lun)，并通過制訂(ding)合理(li)的熱處(chu)理(li)工(gong)(gong)(gong)藝方(fang)法和(he)參(can)數來保(bao)證該(gai)(gai)齒(chi)(chi)輪(lun)的加(jia)工(gong)(gong)(gong)質量。