具體參數

混凝土拖泵支重輪(lun)(lun)部件上有一(yi)配對錐(zhui)齒輪(lun)(lun)，其中一(yi)個錐(zhui)齒輪(lun)(lun)結(jie)構如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒 輪(lun)(lun)的(de)主要(yao)技術參數(shu)(shu)為(wei)(wei)(wei)：大(da)端端面(mian)模數(shu)(shu)為(wei)(wei)(wei)4、齒數(shu)(shu)20、齒形(xing)角為(wei)(wei)(wei)20°、切向變位系數(shu)(shu)為(wei)(wei)(wei)0、徑向變位系數(shu)(shu) 為(wei)(wei)(wei)-0.27、大(da)端齒高0.8mm、精度(du)等級為(wei)(wei)(wei)8CB GB11365。由(you)于齒面(mian)硬度(du)要(yao)求為(wei)(wei)(wei)HRC56~64，因此，齒輪(lun)(lun)需要(yao)進行(xing)滲(shen)(shen)碳(tan)淬火(huo)處理，滲(shen)(shen)層深度(du)要(yao)求為(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)求和(he)精(jing)度(du)等(deng)(deng)級來看，該(gai)(gai)齒(chi)(chi)輪的加工(gong)(gong)(gong)精(jing)度(du) 等(deng)(deng)級要(yao)求不高，要(yao)確保該(gai)(gai)零(ling)件(jian)的加工(gong)(gong)(gong)質(zhi)量，關鍵在于(yu)解決好錐齒(chi)(chi)加工(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)藝環(huan)節，由于(yu)該(gai)(gai)零(ling)件(jian) 屬(shu)于(yu)試(shi)制階段(duan)，為降低加工(gong)(gong)(gong)成(cheng)本(ben)，我們決定(ding)在臥(wo)式銑床(chuang)上采用(yong)成(cheng)形齒(chi)(chi)輪銑刀銑齒(chi)(chi)法(fa)加工(gong)(gong)(gong)該(gai)(gai)錐齒(chi)(chi)輪，并通過制訂(ding)合理的熱處理工(gong)(gong)(gong)藝方法(fa)和(he)參數(shu)來保證(zheng)該(gai)(gai)齒(chi)(chi)輪的加工(gong)(gong)(gong)質(zhi)量。