具體參數

混凝土(tu)拖(tuo)泵支重(zhong)輪(lun)(lun)部件上有一配(pei)對錐(zhui)齒(chi)(chi)輪(lun)(lun)，其(qi)中一個錐(zhui)齒(chi)(chi)輪(lun)(lun)結構如(ru)圖1，材料為(wei)(wei)20CrMnTi，該(gai)齒(chi)(chi) 輪(lun)(lun)的主要(yao)(yao)(yao)(yao)技術(shu)參數為(wei)(wei)：大(da)端端面(mian)模(mo)數為(wei)(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形角為(wei)(wei)20°、切(qie)向變位(wei)系(xi)數為(wei)(wei)0、徑向變位(wei)系(xi)數 為(wei)(wei)-0.27、大(da)端齒(chi)(chi)高0.8mm、精度(du)(du)等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面(mian)硬度(du)(du)要(yao)(yao)(yao)(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)(lun)需要(yao)(yao)(yao)(yao)進行(xing)滲(shen)碳淬火處理，滲(shen)層深(shen)度(du)(du)要(yao)(yao)(yao)(yao)求為(wei)(wei)0.8-1.2mm。

從(cong)技術要(yao)求(qiu)(qiu)和精(jing)度等級來(lai)看，該(gai)齒(chi)(chi)輪(lun)的加(jia)(jia)工(gong)(gong)精(jing)度 等級要(yao)求(qiu)(qiu)不高，要(yao)確保該(gai)零件的加(jia)(jia)工(gong)(gong)質量(liang)，關(guan)鍵在于解決好錐齒(chi)(chi)加(jia)(jia)工(gong)(gong)和熱處理(li)工(gong)(gong)藝環節(jie)，由于該(gai)零件 屬(shu)于試制階段(duan)，為(wei)降低加(jia)(jia)工(gong)(gong)成本，我(wo)們決定在臥式(shi)銑(xian)(xian)床上采用成形(xing)齒(chi)(chi)輪(lun)銑(xian)(xian)刀銑(xian)(xian)齒(chi)(chi)法加(jia)(jia)工(gong)(gong)該(gai)錐齒(chi)(chi)輪(lun)，并通過制訂合理(li)的熱處理(li)工(gong)(gong)藝方法和參數來(lai)保證該(gai)齒(chi)(chi)輪(lun)的加(jia)(jia)工(gong)(gong)質量(liang)。