具體參數

混凝土拖泵支(zhi)重輪(lun)部(bu)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)結構如(ru)圖1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)的主要(yao)(yao)技術參數(shu)為(wei)(wei)：大端(duan)端(duan)面(mian)模數(shu)為(wei)(wei)4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角為(wei)(wei)20°、切向變(bian)(bian)位系數(shu)為(wei)(wei)0、徑向變(bian)(bian)位系數(shu) 為(wei)(wei)-0.27、大端(duan)齒(chi)(chi)高0.8mm、精(jing)度等(deng)級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面(mian)硬度要(yao)(yao)求(qiu)為(wei)(wei)HRC56~64，因(yin)此(ci)，齒(chi)(chi)輪(lun)需要(yao)(yao)進行滲碳淬火(huo)處(chu)理，滲層深(shen)度要(yao)(yao)求(qiu)為(wei)(wei)0.8-1.2mm。

從(cong)技術要(yao)(yao)求(qiu)和精度等(deng)級(ji)來(lai)看，該齒輪(lun)的加(jia)(jia)工(gong)(gong)精度 等(deng)級(ji)要(yao)(yao)求(qiu)不(bu)高，要(yao)(yao)確保(bao)該零件的加(jia)(jia)工(gong)(gong)質量(liang)，關鍵在于(yu)解決好(hao)錐齒加(jia)(jia)工(gong)(gong)和熱處理工(gong)(gong)藝環(huan)節，由于(yu)該零件 屬(shu)于(yu)試制階(jie)段，為降(jiang)低(di)加(jia)(jia)工(gong)(gong)成本(ben)，我(wo)們決定(ding)在臥式(shi)銑床(chuang)上采用成形(xing)齒輪(lun)銑刀銑齒法加(jia)(jia)工(gong)(gong)該錐齒輪(lun)，并(bing)通過制訂合理的熱處理工(gong)(gong)藝方法和參(can)數來(lai)保(bao)證該齒輪(lun)的加(jia)(jia)工(gong)(gong)質量(liang)。