具體參數

混凝土拖泵支(zhi)重輪(lun)(lun)(lun)部件上有一配對錐齒輪(lun)(lun)(lun)，其中一個錐齒輪(lun)(lun)(lun)結構如圖1，材(cai)料為(wei)(wei)20CrMnTi，該齒 輪(lun)(lun)(lun)的主要(yao)(yao)技術參數為(wei)(wei)：大端(duan)端(duan)面模數為(wei)(wei)4、齒數20、齒形角為(wei)(wei)20°、切(qie)向變位(wei)系數為(wei)(wei)0、徑向變位(wei)系數 為(wei)(wei)-0.27、大端(duan)齒高0.8mm、精(jing)度等(deng)級為(wei)(wei)8CB GB11365。由于(yu)齒面硬度要(yao)(yao)求(qiu)為(wei)(wei)HRC56~64，因此，齒輪(lun)(lun)(lun)需要(yao)(yao)進行滲碳淬火(huo)處理，滲層(ceng)深度要(yao)(yao)求(qiu)為(wei)(wei)0.8-1.2mm。

從技術要求和(he)(he)精(jing)度等(deng)級來看(kan)，該(gai)齒(chi)輪(lun)的加(jia)工(gong)(gong)(gong)精(jing)度 等(deng)級要求不(bu)高，要確保該(gai)零件的加(jia)工(gong)(gong)(gong)質(zhi)量，關(guan)鍵在(zai)于解決好錐齒(chi)加(jia)工(gong)(gong)(gong)和(he)(he)熱處理工(gong)(gong)(gong)藝環節，由(you)于該(gai)零件 屬于試制階段(duan)，為降低加(jia)工(gong)(gong)(gong)成(cheng)本，我們決定在(zai)臥式銑床上采用成(cheng)形齒(chi)輪(lun)銑刀銑齒(chi)法加(jia)工(gong)(gong)(gong)該(gai)錐齒(chi)輪(lun)，并(bing)通過制訂合理的熱處理工(gong)(gong)(gong)藝方法和(he)(he)參(can)數來保證該(gai)齒(chi)輪(lun)的加(jia)工(gong)(gong)(gong)質(zhi)量。