具體參數

混凝土拖泵支(zhi)重輪(lun)部件上有一配對錐齒(chi)(chi)(chi)(chi)輪(lun)，其中一個錐齒(chi)(chi)(chi)(chi)輪(lun)結構如圖(tu)1，材料(liao)為(wei)20CrMnTi，該齒(chi)(chi)(chi)(chi) 輪(lun)的(de)主要技(ji)術參數為(wei)：大端(duan)端(duan)面模數為(wei)4、齒(chi)(chi)(chi)(chi)數20、齒(chi)(chi)(chi)(chi)形角為(wei)20°、切向(xiang)(xiang)變(bian)位系數為(wei)0、徑向(xiang)(xiang)變(bian)位系數 為(wei)-0.27、大端(duan)齒(chi)(chi)(chi)(chi)高0.8mm、精度等級為(wei)8CB GB11365。由于(yu)齒(chi)(chi)(chi)(chi)面硬度要求為(wei)HRC56~64，因此，齒(chi)(chi)(chi)(chi)輪(lun)需要進(jin)行(xing)滲(shen)碳淬(cui)火處理，滲(shen)層深度要求為(wei)0.8-1.2mm。

從技術要求和精度等(deng)級(ji)來看，該齒(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)(gong)精度 等(deng)級(ji)要求不高，要確保該零件(jian)的(de)加(jia)工(gong)(gong)(gong)質量(liang)，關鍵(jian)在于(yu)解決(jue)好錐(zhui)齒(chi)(chi)加(jia)工(gong)(gong)(gong)和熱處(chu)理工(gong)(gong)(gong)藝(yi)環節(jie)，由于(yu)該零件(jian) 屬(shu)于(yu)試制(zhi)階段，為降低加(jia)工(gong)(gong)(gong)成(cheng)本，我們決(jue)定(ding)在臥(wo)式銑(xian)床上采用成(cheng)形齒(chi)(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)(chi)法(fa)加(jia)工(gong)(gong)(gong)該錐(zhui)齒(chi)(chi)輪(lun)，并通過制(zhi)訂(ding)合理的(de)熱處(chu)理工(gong)(gong)(gong)藝(yi)方(fang)法(fa)和參數來保證該齒(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)(gong)質量(liang)。