具體參數

混凝土拖泵支重(zhong)輪(lun)部件上(shang)有一配(pei)對錐齒輪(lun)，其(qi)中一個(ge)錐齒輪(lun)結構如(ru)圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒 輪(lun)的主(zhu)要(yao)技術參數為(wei)(wei)(wei)：大(da)端(duan)端(duan)面(mian)模數為(wei)(wei)(wei)4、齒數20、齒形(xing)角為(wei)(wei)(wei)20°、切向變位系數為(wei)(wei)(wei)0、徑(jing)向變位系數 為(wei)(wei)(wei)-0.27、大(da)端(duan)齒高0.8mm、精度(du)等級為(wei)(wei)(wei)8CB GB11365。由于齒面(mian)硬度(du)要(yao)求(qiu)為(wei)(wei)(wei)HRC56~64，因此，齒輪(lun)需(xu)要(yao)進行滲(shen)(shen)碳淬火處理，滲(shen)(shen)層深(shen)度(du)要(yao)求(qiu)為(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)(yao)(yao)求(qiu)和(he)精度等(deng)級(ji)(ji)來(lai)看，該(gai)齒(chi)(chi)(chi)輪(lun)的加工(gong)(gong)精度 等(deng)級(ji)(ji)要(yao)(yao)(yao)求(qiu)不高，要(yao)(yao)(yao)確保該(gai)零(ling)件的加工(gong)(gong)質(zhi)量，關鍵在于解決好(hao)錐齒(chi)(chi)(chi)加工(gong)(gong)和(he)熱(re)處(chu)理工(gong)(gong)藝環節，由于該(gai)零(ling)件 屬于試(shi)制階段，為(wei)降低加工(gong)(gong)成本，我們決定在臥式銑床上(shang)采(cai)用成形齒(chi)(chi)(chi)輪(lun)銑刀銑齒(chi)(chi)(chi)法加工(gong)(gong)該(gai)錐齒(chi)(chi)(chi)輪(lun)，并通(tong)過制訂合理的熱(re)處(chu)理工(gong)(gong)藝方法和(he)參數來(lai)保證該(gai)齒(chi)(chi)(chi)輪(lun)的加工(gong)(gong)質(zhi)量。