具體參數

混凝土(tu)拖泵支重輪(lun)部件上有一配對錐(zhui)齒(chi)(chi)輪(lun)，其中(zhong)一個錐(zhui)齒(chi)(chi)輪(lun)結構(gou)如圖1，材料為(wei)(wei)(wei)(wei)20CrMnTi，該(gai)齒(chi)(chi) 輪(lun)的主要(yao)(yao)技術(shu)參數(shu)(shu)為(wei)(wei)(wei)(wei)：大端(duan)(duan)端(duan)(duan)面模數(shu)(shu)為(wei)(wei)(wei)(wei)4、齒(chi)(chi)數(shu)(shu)20、齒(chi)(chi)形角為(wei)(wei)(wei)(wei)20°、切向變位(wei)系數(shu)(shu)為(wei)(wei)(wei)(wei)0、徑向變位(wei)系數(shu)(shu) 為(wei)(wei)(wei)(wei)-0.27、大端(duan)(duan)齒(chi)(chi)高0.8mm、精度等級為(wei)(wei)(wei)(wei)8CB GB11365。由于齒(chi)(chi)面硬度要(yao)(yao)求(qiu)為(wei)(wei)(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)需(xu)要(yao)(yao)進行(xing)滲碳淬火處理，滲層深(shen)度要(yao)(yao)求(qiu)為(wei)(wei)(wei)(wei)0.8-1.2mm。

從技(ji)術要(yao)求(qiu)和(he)精度(du)等級(ji)(ji)來看，該(gai)(gai)齒輪(lun)的加(jia)(jia)工(gong)(gong)(gong)精度(du) 等級(ji)(ji)要(yao)求(qiu)不高，要(yao)確保該(gai)(gai)零件(jian)的加(jia)(jia)工(gong)(gong)(gong)質量，關鍵在(zai)于(yu)(yu)解決(jue)好錐齒加(jia)(jia)工(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)藝環節，由于(yu)(yu)該(gai)(gai)零件(jian) 屬于(yu)(yu)試(shi)制(zhi)階(jie)段，為降低加(jia)(jia)工(gong)(gong)(gong)成(cheng)本，我們(men)決(jue)定在(zai)臥式銑床上采用成(cheng)形(xing)齒輪(lun)銑刀(dao)銑齒法加(jia)(jia)工(gong)(gong)(gong)該(gai)(gai)錐齒輪(lun)，并通(tong)過制(zhi)訂合理的熱處理工(gong)(gong)(gong)藝方(fang)法和(he)參數來保證該(gai)(gai)齒輪(lun)的加(jia)(jia)工(gong)(gong)(gong)質量。