具體參數

混(hun)凝土拖泵支重輪(lun)(lun)部件上有一配對錐齒(chi)輪(lun)(lun)，其中一個錐齒(chi)輪(lun)(lun)結(jie)構如圖1，材料為(wei)(wei)(wei)(wei)(wei)20CrMnTi，該(gai)齒(chi) 輪(lun)(lun)的主要技(ji)術(shu)參數(shu)為(wei)(wei)(wei)(wei)(wei)：大(da)(da)端端面模數(shu)為(wei)(wei)(wei)(wei)(wei)4、齒(chi)數(shu)20、齒(chi)形角為(wei)(wei)(wei)(wei)(wei)20°、切向變(bian)位系數(shu)為(wei)(wei)(wei)(wei)(wei)0、徑向變(bian)位系數(shu) 為(wei)(wei)(wei)(wei)(wei)-0.27、大(da)(da)端齒(chi)高0.8mm、精度(du)(du)等級為(wei)(wei)(wei)(wei)(wei)8CB GB11365。由于(yu)齒(chi)面硬度(du)(du)要求為(wei)(wei)(wei)(wei)(wei)HRC56~64，因此，齒(chi)輪(lun)(lun)需要進(jin)行(xing)滲碳淬火處(chu)理，滲層深度(du)(du)要求為(wei)(wei)(wei)(wei)(wei)0.8-1.2mm。

從技術要求和(he)精(jing)度(du)(du)等(deng)級來看，該齒(chi)輪的(de)加(jia)(jia)工(gong)(gong)(gong)精(jing)度(du)(du) 等(deng)級要求不高，要確保該零(ling)件(jian)的(de)加(jia)(jia)工(gong)(gong)(gong)質量(liang)，關(guan)鍵在(zai)于解(jie)決好錐齒(chi)加(jia)(jia)工(gong)(gong)(gong)和(he)熱處(chu)(chu)理(li)工(gong)(gong)(gong)藝(yi)環節，由(you)于該零(ling)件(jian) 屬于試制階段，為降低(di)加(jia)(jia)工(gong)(gong)(gong)成(cheng)本(ben)，我(wo)們決定在(zai)臥式銑床上采用成(cheng)形(xing)齒(chi)輪銑刀銑齒(chi)法(fa)加(jia)(jia)工(gong)(gong)(gong)該錐齒(chi)輪，并通過(guo)制訂合理(li)的(de)熱處(chu)(chu)理(li)工(gong)(gong)(gong)藝(yi)方法(fa)和(he)參(can)數來保證該齒(chi)輪的(de)加(jia)(jia)工(gong)(gong)(gong)質量(liang)。