具體參數

混(hun)凝土拖泵(beng)支重輪(lun)部件上有一(yi)配(pei)對錐(zhui)齒(chi)(chi)輪(lun)，其中(zhong)一(yi)個錐(zhui)齒(chi)(chi)輪(lun)結構如圖1，材(cai)料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)的主要(yao)技術參數(shu)為(wei)(wei)：大(da)端端面(mian)(mian)模數(shu)為(wei)(wei)4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角為(wei)(wei)20°、切向變位(wei)系數(shu)為(wei)(wei)0、徑向變位(wei)系數(shu) 為(wei)(wei)-0.27、大(da)端齒(chi)(chi)高0.8mm、精度(du)等(deng)級(ji)為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面(mian)(mian)硬度(du)要(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)需要(yao)進行(xing)滲碳淬(cui)火(huo)處理(li)，滲層深度(du)要(yao)求為(wei)(wei)0.8-1.2mm。

從(cong)技術要(yao)求和(he)精度等(deng)級來看，該(gai)齒(chi)(chi)輪的加(jia)(jia)(jia)工(gong)(gong)精度 等(deng)級要(yao)求不高，要(yao)確保該(gai)零(ling)件的加(jia)(jia)(jia)工(gong)(gong)質量，關鍵在于(yu)解(jie)決(jue)好錐齒(chi)(chi)加(jia)(jia)(jia)工(gong)(gong)和(he)熱處理(li)(li)工(gong)(gong)藝(yi)環(huan)節，由于(yu)該(gai)零(ling)件 屬于(yu)試制階段，為降(jiang)低(di)加(jia)(jia)(jia)工(gong)(gong)成本，我們決(jue)定在臥(wo)式(shi)銑(xian)床上采用成形齒(chi)(chi)輪銑(xian)刀銑(xian)齒(chi)(chi)法加(jia)(jia)(jia)工(gong)(gong)該(gai)錐齒(chi)(chi)輪，并通過制訂合理(li)(li)的熱處理(li)(li)工(gong)(gong)藝(yi)方(fang)法和(he)參數來保證該(gai)齒(chi)(chi)輪的加(jia)(jia)(jia)工(gong)(gong)質量。