具體參數

混(hun)凝土拖泵(beng)支重輪部件(jian)上有(you)一配對錐(zhui)齒(chi)(chi)輪，其(qi)中一個(ge)錐(zhui)齒(chi)(chi)輪結構如圖(tu)1，材(cai)料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪的主要技術參數(shu)為(wei)(wei)：大(da)端端面(mian)模數(shu)為(wei)(wei)4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角(jiao)為(wei)(wei)20°、切(qie)向變位系數(shu)為(wei)(wei)0、徑(jing)向變位系數(shu) 為(wei)(wei)-0.27、大(da)端齒(chi)(chi)高0.8mm、精度等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面(mian)硬(ying)度要求為(wei)(wei)HRC56~64，因此(ci)，齒(chi)(chi)輪需要進行滲碳淬火處理，滲層深度要求為(wei)(wei)0.8-1.2mm。

從技術(shu)要求(qiu)和精(jing)度等(deng)級(ji)(ji)來(lai)看，該齒(chi)輪(lun)(lun)的加(jia)(jia)工(gong)(gong)(gong)精(jing)度 等(deng)級(ji)(ji)要求(qiu)不高，要確保(bao)該零(ling)(ling)件(jian)的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量(liang)，關(guan)鍵在(zai)于解決(jue)好(hao)錐(zhui)(zhui)齒(chi)加(jia)(jia)工(gong)(gong)(gong)和熱處理(li)工(gong)(gong)(gong)藝環節，由于該零(ling)(ling)件(jian) 屬于試(shi)制階段，為降低加(jia)(jia)工(gong)(gong)(gong)成(cheng)本(ben)，我們(men)決(jue)定在(zai)臥式銑床上采(cai)用成(cheng)形齒(chi)輪(lun)(lun)銑刀銑齒(chi)法(fa)加(jia)(jia)工(gong)(gong)(gong)該錐(zhui)(zhui)齒(chi)輪(lun)(lun)，并通(tong)過制訂合理(li)的熱處理(li)工(gong)(gong)(gong)藝方法(fa)和參數來(lai)保(bao)證該齒(chi)輪(lun)(lun)的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量(liang)。