具體參數

混凝土拖泵支(zhi)重輪(lun)部(bu)件(jian)上(shang)有一(yi)配對(dui)錐齒輪(lun)，其(qi)中一(yi)個(ge)錐齒輪(lun)結構如圖1，材(cai)料為(wei)(wei)(wei)20CrMnTi，該齒 輪(lun)的主要(yao)技術參數(shu)為(wei)(wei)(wei)：大端(duan)端(duan)面模數(shu)為(wei)(wei)(wei)4、齒數(shu)20、齒形角為(wei)(wei)(wei)20°、切向變(bian)位(wei)系數(shu)為(wei)(wei)(wei)0、徑向變(bian)位(wei)系數(shu) 為(wei)(wei)(wei)-0.27、大端(duan)齒高0.8mm、精度(du)等級為(wei)(wei)(wei)8CB GB11365。由(you)于齒面硬度(du)要(yao)求為(wei)(wei)(wei)HRC56~64，因(yin)此，齒輪(lun)需(xu)要(yao)進行滲(shen)碳淬火處理(li)，滲(shen)層深(shen)度(du)要(yao)求為(wei)(wei)(wei)0.8-1.2mm。

從技術要求(qiu)(qiu)和(he)精(jing)度等級來(lai)看，該(gai)齒(chi)輪的(de)(de)加(jia)工(gong)(gong)(gong)精(jing)度 等級要求(qiu)(qiu)不高，要確保(bao)(bao)該(gai)零件的(de)(de)加(jia)工(gong)(gong)(gong)質量，關鍵在于解決好錐(zhui)齒(chi)加(jia)工(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)藝環(huan)節，由于該(gai)零件 屬于試制階(jie)段，為降低加(jia)工(gong)(gong)(gong)成本(ben)，我們決定在臥式銑(xian)床上(shang)采用成形齒(chi)輪銑(xian)刀銑(xian)齒(chi)法(fa)加(jia)工(gong)(gong)(gong)該(gai)錐(zhui)齒(chi)輪，并(bing)通過制訂(ding)合理的(de)(de)熱處理工(gong)(gong)(gong)藝方(fang)法(fa)和(he)參數(shu)來(lai)保(bao)(bao)證該(gai)齒(chi)輪的(de)(de)加(jia)工(gong)(gong)(gong)質量。