具體參數

混凝土拖泵支(zhi)重(zhong)輪(lun)部件上有一配對錐齒(chi)(chi)(chi)輪(lun)，其(qi)中一個錐齒(chi)(chi)(chi)輪(lun)結(jie)構(gou)如圖(tu)1，材料(liao)為20CrMnTi，該齒(chi)(chi)(chi) 輪(lun)的主要(yao)(yao)(yao)技術參數為：大端(duan)端(duan)面(mian)模數為4、齒(chi)(chi)(chi)數20、齒(chi)(chi)(chi)形(xing)角為20°、切向變(bian)位系(xi)數為0、徑向變(bian)位系(xi)數 為-0.27、大端(duan)齒(chi)(chi)(chi)高0.8mm、精度等(deng)級為8CB GB11365。由于齒(chi)(chi)(chi)面(mian)硬(ying)度要(yao)(yao)(yao)求為HRC56~64，因(yin)此，齒(chi)(chi)(chi)輪(lun)需(xu)要(yao)(yao)(yao)進(jin)行滲(shen)碳淬火處理(li)，滲(shen)層深度要(yao)(yao)(yao)求為0.8-1.2mm。

從技術要(yao)(yao)求和(he)精度(du)等級(ji)來(lai)看，該齒(chi)(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)精度(du) 等級(ji)要(yao)(yao)求不高(gao)，要(yao)(yao)確(que)保(bao)該零件(jian)(jian)的(de)加(jia)工(gong)(gong)質量(liang)，關鍵(jian)在于(yu)解決好錐齒(chi)(chi)(chi)加(jia)工(gong)(gong)和(he)熱處理(li)工(gong)(gong)藝(yi)環節，由于(yu)該零件(jian)(jian) 屬(shu)于(yu)試制階(jie)段，為降低加(jia)工(gong)(gong)成本，我(wo)們決定在臥式銑(xian)(xian)床上(shang)采用成形齒(chi)(chi)(chi)輪(lun)銑(xian)(xian)刀銑(xian)(xian)齒(chi)(chi)(chi)法加(jia)工(gong)(gong)該錐齒(chi)(chi)(chi)輪(lun)，并通過制訂合理(li)的(de)熱處理(li)工(gong)(gong)藝(yi)方法和(he)參數來(lai)保(bao)證該齒(chi)(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)質量(liang)。