具體參數

混凝土拖泵支重輪(lun)部(bu)件上有一(yi)配對錐齒(chi)(chi)(chi)(chi)輪(lun)，其中一(yi)個錐齒(chi)(chi)(chi)(chi)輪(lun)結構如圖1，材(cai)料為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi)(chi)(chi) 輪(lun)的主(zhu)要(yao)技(ji)術參(can)數(shu)(shu)為(wei)(wei)(wei)：大端(duan)端(duan)面模(mo)數(shu)(shu)為(wei)(wei)(wei)4、齒(chi)(chi)(chi)(chi)數(shu)(shu)20、齒(chi)(chi)(chi)(chi)形角(jiao)為(wei)(wei)(wei)20°、切向變(bian)位系數(shu)(shu)為(wei)(wei)(wei)0、徑向變(bian)位系數(shu)(shu) 為(wei)(wei)(wei)-0.27、大端(duan)齒(chi)(chi)(chi)(chi)高0.8mm、精度等級(ji)為(wei)(wei)(wei)8CB GB11365。由(you)于齒(chi)(chi)(chi)(chi)面硬度要(yao)求為(wei)(wei)(wei)HRC56~64，因此，齒(chi)(chi)(chi)(chi)輪(lun)需(xu)要(yao)進行滲(shen)碳淬火處理(li)，滲(shen)層深度要(yao)求為(wei)(wei)(wei)0.8-1.2mm。

從技術要求和(he)精度等(deng)級(ji)來(lai)看，該(gai)齒(chi)輪(lun)的加工(gong)精度 等(deng)級(ji)要求不高，要確保該(gai)零件的加工(gong)質(zhi)量，關鍵在(zai)于(yu)解(jie)決好錐(zhui)(zhui)齒(chi)加工(gong)和(he)熱處(chu)理(li)工(gong)藝環節，由于(yu)該(gai)零件 屬于(yu)試制(zhi)階段，為降低(di)加工(gong)成本(ben)，我們決定在(zai)臥(wo)式銑(xian)床(chuang)上采用(yong)成形(xing)齒(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)法加工(gong)該(gai)錐(zhui)(zhui)齒(chi)輪(lun)，并通過制(zhi)訂合理(li)的熱處(chu)理(li)工(gong)藝方法和(he)參數來(lai)保證該(gai)齒(chi)輪(lun)的加工(gong)質(zhi)量。