具體參數

混凝土拖泵支(zhi)重輪(lun)部件上有一配對錐齒(chi)(chi)(chi)輪(lun)，其中一個(ge)錐齒(chi)(chi)(chi)輪(lun)結構(gou)如圖1，材料為20CrMnTi，該(gai)齒(chi)(chi)(chi) 輪(lun)的(de)主要(yao)技術參數(shu)(shu)為：大(da)端(duan)端(duan)面模數(shu)(shu)為4、齒(chi)(chi)(chi)數(shu)(shu)20、齒(chi)(chi)(chi)形(xing)角為20°、切向變位系(xi)數(shu)(shu)為0、徑向變位系(xi)數(shu)(shu) 為-0.27、大(da)端(duan)齒(chi)(chi)(chi)高0.8mm、精(jing)度(du)等級為8CB GB11365。由于(yu)齒(chi)(chi)(chi)面硬度(du)要(yao)求(qiu)為HRC56~64，因(yin)此，齒(chi)(chi)(chi)輪(lun)需要(yao)進(jin)行滲(shen)碳(tan)淬火處理(li)，滲(shen)層深度(du)要(yao)求(qiu)為0.8-1.2mm。

從技(ji)術(shu)要(yao)求和精度等(deng)級(ji)來(lai)(lai)看(kan)，該齒(chi)(chi)輪(lun)的(de)加工(gong)(gong)(gong)精度 等(deng)級(ji)要(yao)求不高，要(yao)確保該零(ling)件的(de)加工(gong)(gong)(gong)質量，關(guan)鍵在(zai)于(yu)解決好錐齒(chi)(chi)加工(gong)(gong)(gong)和熱(re)處理工(gong)(gong)(gong)藝環節，由(you)于(yu)該零(ling)件 屬于(yu)試制(zhi)階(jie)段，為降(jiang)低加工(gong)(gong)(gong)成(cheng)本，我(wo)們決定在(zai)臥(wo)式銑(xian)床上采用(yong)成(cheng)形齒(chi)(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)(chi)法加工(gong)(gong)(gong)該錐齒(chi)(chi)輪(lun)，并通過制(zhi)訂(ding)合理的(de)熱(re)處理工(gong)(gong)(gong)藝方法和參數來(lai)(lai)保證該齒(chi)(chi)輪(lun)的(de)加工(gong)(gong)(gong)質量。