具體參數

混凝土(tu)拖泵支重輪部件上有一配(pei)對錐齒(chi)(chi)輪，其中(zhong)一個錐齒(chi)(chi)輪結(jie)構如圖(tu)1，材料(liao)為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪的主(zhu)要(yao)技術參數(shu)(shu)為(wei)(wei)(wei)：大端端面模數(shu)(shu)為(wei)(wei)(wei)4、齒(chi)(chi)數(shu)(shu)20、齒(chi)(chi)形角為(wei)(wei)(wei)20°、切向(xiang)變(bian)位系數(shu)(shu)為(wei)(wei)(wei)0、徑向(xiang)變(bian)位系數(shu)(shu) 為(wei)(wei)(wei)-0.27、大端齒(chi)(chi)高0.8mm、精度(du)(du)等級為(wei)(wei)(wei)8CB GB11365。由于(yu)齒(chi)(chi)面硬度(du)(du)要(yao)求為(wei)(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪需要(yao)進(jin)行滲碳淬火處理，滲層深度(du)(du)要(yao)求為(wei)(wei)(wei)0.8-1.2mm。

從(cong)技術要(yao)(yao)求(qiu)和(he)(he)精度(du)等級(ji)來看，該(gai)齒輪(lun)(lun)的加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)精度(du) 等級(ji)要(yao)(yao)求(qiu)不高，要(yao)(yao)確保該(gai)零件的加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)質(zhi)量，關鍵在于(yu)解決好錐齒加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)和(he)(he)熱(re)處(chu)理工(gong)(gong)(gong)(gong)(gong)藝環(huan)節，由于(yu)該(gai)零件 屬于(yu)試制階(jie)段，為降低加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)成本，我(wo)們決定(ding)在臥式(shi)銑床上采用(yong)成形齒輪(lun)(lun)銑刀銑齒法(fa)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)該(gai)錐齒輪(lun)(lun)，并(bing)通過(guo)制訂合理的熱(re)處(chu)理工(gong)(gong)(gong)(gong)(gong)藝方(fang)法(fa)和(he)(he)參數來保證該(gai)齒輪(lun)(lun)的加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)質(zhi)量。