具體參數

混凝土拖泵支重輪(lun)部件上有一配對錐齒(chi)(chi)輪(lun)，其(qi)中(zhong)一個錐齒(chi)(chi)輪(lun)結(jie)構如圖1，材料為(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)的(de)主要(yao)(yao)技術參(can)數為(wei)：大端端面模數為(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形(xing)角為(wei)20°、切向(xiang)變(bian)(bian)位系數為(wei)0、徑向(xiang)變(bian)(bian)位系數 為(wei)-0.27、大端齒(chi)(chi)高(gao)0.8mm、精度(du)(du)等級(ji)為(wei)8CB GB11365。由(you)于齒(chi)(chi)面硬(ying)度(du)(du)要(yao)(yao)求為(wei)HRC56~64，因(yin)此，齒(chi)(chi)輪(lun)需要(yao)(yao)進行滲碳淬火處理(li)，滲層深度(du)(du)要(yao)(yao)求為(wei)0.8-1.2mm。

從技術(shu)要(yao)求(qiu)和(he)(he)精度(du)等(deng)級(ji)來看，該齒(chi)輪(lun)的加(jia)工(gong)(gong)精度(du) 等(deng)級(ji)要(yao)求(qiu)不高，要(yao)確保(bao)該零(ling)(ling)件的加(jia)工(gong)(gong)質量，關鍵在于(yu)(yu)解決好錐(zhui)(zhui)齒(chi)加(jia)工(gong)(gong)和(he)(he)熱處理工(gong)(gong)藝(yi)環節，由(you)于(yu)(yu)該零(ling)(ling)件 屬于(yu)(yu)試制(zhi)階段，為降低加(jia)工(gong)(gong)成本，我們決定在臥式(shi)銑(xian)(xian)床上采用成形齒(chi)輪(lun)銑(xian)(xian)刀銑(xian)(xian)齒(chi)法(fa)加(jia)工(gong)(gong)該錐(zhui)(zhui)齒(chi)輪(lun)，并通過制(zhi)訂合理的熱處理工(gong)(gong)藝(yi)方法(fa)和(he)(he)參數(shu)來保(bao)證該齒(chi)輪(lun)的加(jia)工(gong)(gong)質量。