具體參數

混凝土(tu)拖(tuo)泵支重(zhong)輪(lun)(lun)部件上有一配對錐(zhui)齒(chi)輪(lun)(lun)，其中一個錐(zhui)齒(chi)輪(lun)(lun)結構如圖1，材料為(wei)(wei)(wei)20CrMnTi，該齒(chi) 輪(lun)(lun)的主要(yao)技術參(can)數(shu)(shu)為(wei)(wei)(wei)：大端端面模(mo)數(shu)(shu)為(wei)(wei)(wei)4、齒(chi)數(shu)(shu)20、齒(chi)形角為(wei)(wei)(wei)20°、切向變(bian)位系數(shu)(shu)為(wei)(wei)(wei)0、徑向變(bian)位系數(shu)(shu) 為(wei)(wei)(wei)-0.27、大端齒(chi)高0.8mm、精度(du)等級為(wei)(wei)(wei)8CB GB11365。由(you)于(yu)齒(chi)面硬度(du)要(yao)求(qiu)為(wei)(wei)(wei)HRC56~64，因此，齒(chi)輪(lun)(lun)需要(yao)進行滲碳淬火處理，滲層(ceng)深(shen)度(du)要(yao)求(qiu)為(wei)(wei)(wei)0.8-1.2mm。

從技術要求(qiu)和精度(du)等級來看(kan)，該(gai)齒(chi)(chi)輪(lun)的加(jia)(jia)工(gong)(gong)(gong)精度(du) 等級要求(qiu)不高，要確(que)保該(gai)零件的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量，關(guan)鍵在于(yu)解(jie)決好錐齒(chi)(chi)加(jia)(jia)工(gong)(gong)(gong)和熱處理工(gong)(gong)(gong)藝環節，由于(yu)該(gai)零件 屬(shu)于(yu)試制階段，為降低加(jia)(jia)工(gong)(gong)(gong)成本，我們(men)決定(ding)在臥式銑(xian)床上采用(yong)成形齒(chi)(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)(chi)法加(jia)(jia)工(gong)(gong)(gong)該(gai)錐齒(chi)(chi)輪(lun)，并(bing)通過(guo)制訂合(he)理的熱處理工(gong)(gong)(gong)藝方法和參數來保證該(gai)齒(chi)(chi)輪(lun)的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量。