具體參數

混凝土拖(tuo)泵支重輪(lun)部件上有一(yi)配對錐齒(chi)輪(lun)，其中一(yi)個(ge)錐齒(chi)輪(lun)結(jie)構(gou)如(ru)圖1，材料為(wei)20CrMnTi，該齒(chi) 輪(lun)的主要技術參數(shu)為(wei)：大(da)端端面模數(shu)為(wei)4、齒(chi)數(shu)20、齒(chi)形角(jiao)為(wei)20°、切(qie)向變(bian)位系數(shu)為(wei)0、徑(jing)向變(bian)位系數(shu) 為(wei)-0.27、大(da)端齒(chi)高0.8mm、精(jing)度等級(ji)為(wei)8CB GB11365。由(you)于齒(chi)面硬(ying)度要求為(wei)HRC56~64，因此，齒(chi)輪(lun)需要進行滲碳淬火處理，滲層深(shen)度要求為(wei)0.8-1.2mm。

從(cong)技術(shu)要(yao)求(qiu)和(he)精度等(deng)級來看，該(gai)齒(chi)輪的加(jia)(jia)(jia)工(gong)(gong)(gong)精度 等(deng)級要(yao)求(qiu)不高，要(yao)確保該(gai)零件的加(jia)(jia)(jia)工(gong)(gong)(gong)質(zhi)量，關鍵在(zai)于解決(jue)好錐齒(chi)加(jia)(jia)(jia)工(gong)(gong)(gong)和(he)熱處(chu)理工(gong)(gong)(gong)藝環節，由(you)于該(gai)零件 屬于試(shi)制階段，為(wei)降(jiang)低加(jia)(jia)(jia)工(gong)(gong)(gong)成本，我們決(jue)定在(zai)臥式銑(xian)床上采用(yong)成形齒(chi)輪銑(xian)刀(dao)銑(xian)齒(chi)法加(jia)(jia)(jia)工(gong)(gong)(gong)該(gai)錐齒(chi)輪，并通過制訂(ding)合理的熱處(chu)理工(gong)(gong)(gong)藝方法和(he)參(can)數來保證(zheng)該(gai)齒(chi)輪的加(jia)(jia)(jia)工(gong)(gong)(gong)質(zhi)量。