具體參數

混凝土拖泵(beng)支重輪(lun)部件上有一(yi)配對錐齒(chi)(chi)(chi)輪(lun)，其中一(yi)個錐齒(chi)(chi)(chi)輪(lun)結構如圖1，材料(liao)為(wei)(wei)20CrMnTi，該齒(chi)(chi)(chi) 輪(lun)的主(zhu)要(yao)技術參數(shu)為(wei)(wei)：大端端面(mian)模數(shu)為(wei)(wei)4、齒(chi)(chi)(chi)數(shu)20、齒(chi)(chi)(chi)形(xing)角為(wei)(wei)20°、切向(xiang)變(bian)位系(xi)(xi)數(shu)為(wei)(wei)0、徑(jing)向(xiang)變(bian)位系(xi)(xi)數(shu) 為(wei)(wei)-0.27、大端齒(chi)(chi)(chi)高0.8mm、精(jing)度(du)等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)(chi)面(mian)硬度(du)要(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)(chi)輪(lun)需要(yao)進行滲(shen)(shen)碳淬火處理，滲(shen)(shen)層深度(du)要(yao)求為(wei)(wei)0.8-1.2mm。

從技術要求(qiu)和精度(du)等(deng)級來看，該齒(chi)輪(lun)(lun)的(de)加(jia)(jia)工(gong)(gong)(gong)精度(du) 等(deng)級要求(qiu)不高，要確保(bao)該零(ling)(ling)件(jian)的(de)加(jia)(jia)工(gong)(gong)(gong)質量，關(guan)鍵(jian)在于(yu)解(jie)決好錐齒(chi)加(jia)(jia)工(gong)(gong)(gong)和熱(re)處理工(gong)(gong)(gong)藝(yi)環節(jie)，由于(yu)該零(ling)(ling)件(jian) 屬于(yu)試制(zhi)階(jie)段，為降(jiang)低加(jia)(jia)工(gong)(gong)(gong)成(cheng)本，我們(men)決定在臥(wo)式(shi)銑床上采用成(cheng)形齒(chi)輪(lun)(lun)銑刀銑齒(chi)法加(jia)(jia)工(gong)(gong)(gong)該錐齒(chi)輪(lun)(lun)，并(bing)通(tong)過制(zhi)訂合理的(de)熱(re)處理工(gong)(gong)(gong)藝(yi)方(fang)法和參(can)數來保(bao)證該齒(chi)輪(lun)(lun)的(de)加(jia)(jia)工(gong)(gong)(gong)質量。