具體參數

混凝土拖泵支重輪(lun)部件上(shang)有一配對錐(zhui)齒(chi)(chi)輪(lun)，其中一個錐(zhui)齒(chi)(chi)輪(lun)結構如圖1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)的主要(yao)技術參數為(wei)(wei)：大端端面模數為(wei)(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形角為(wei)(wei)20°、切向(xiang)變位系數為(wei)(wei)0、徑向(xiang)變位系數 為(wei)(wei)-0.27、大端齒(chi)(chi)高0.8mm、精度等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面硬度要(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)需要(yao)進行滲碳淬(cui)火(huo)處理，滲層(ceng)深度要(yao)求為(wei)(wei)0.8-1.2mm。

從(cong)技術(shu)要(yao)求和(he)(he)(he)精度(du)等級來看(kan)，該齒(chi)(chi)(chi)輪的加(jia)(jia)工(gong)(gong)精度(du) 等級要(yao)求不高，要(yao)確保(bao)該零件(jian)的加(jia)(jia)工(gong)(gong)質量，關鍵(jian)在于解(jie)決(jue)(jue)好錐齒(chi)(chi)(chi)加(jia)(jia)工(gong)(gong)和(he)(he)(he)熱處理工(gong)(gong)藝(yi)環節，由于該零件(jian) 屬于試(shi)制(zhi)(zhi)階段，為降低加(jia)(jia)工(gong)(gong)成本，我們(men)決(jue)(jue)定在臥式銑床上采(cai)用成形齒(chi)(chi)(chi)輪銑刀銑齒(chi)(chi)(chi)法加(jia)(jia)工(gong)(gong)該錐齒(chi)(chi)(chi)輪，并通過(guo)制(zhi)(zhi)訂合(he)理的熱處理工(gong)(gong)藝(yi)方法和(he)(he)(he)參(can)數(shu)來保(bao)證該齒(chi)(chi)(chi)輪的加(jia)(jia)工(gong)(gong)質量。