具體參數

混凝(ning)土拖泵支重(zhong)輪部件上有一(yi)(yi)配對錐(zhui)齒(chi)(chi)輪，其中(zhong)一(yi)(yi)個錐(zhui)齒(chi)(chi)輪結構如圖1，材(cai)料為(wei)20CrMnTi，該齒(chi)(chi) 輪的(de)主要(yao)技術參(can)數為(wei)：大端(duan)端(duan)面模數為(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形角(jiao)為(wei)20°、切向(xiang)變(bian)(bian)位(wei)系(xi)數為(wei)0、徑向(xiang)變(bian)(bian)位(wei)系(xi)數 為(wei)-0.27、大端(duan)齒(chi)(chi)高0.8mm、精度(du)等級為(wei)8CB GB11365。由于齒(chi)(chi)面硬度(du)要(yao)求為(wei)HRC56~64，因此，齒(chi)(chi)輪需要(yao)進行滲(shen)碳(tan)淬火處(chu)理，滲(shen)層深度(du)要(yao)求為(wei)0.8-1.2mm。

從技術要(yao)求和(he)精度等級(ji)來(lai)(lai)看，該(gai)齒(chi)輪的加(jia)(jia)(jia)工(gong)(gong)精度 等級(ji)要(yao)求不高，要(yao)確保該(gai)零件的加(jia)(jia)(jia)工(gong)(gong)質(zhi)量，關鍵在于(yu)解決好錐齒(chi)加(jia)(jia)(jia)工(gong)(gong)和(he)熱處(chu)(chu)理(li)工(gong)(gong)藝環節，由于(yu)該(gai)零件 屬于(yu)試制階段，為(wei)降低加(jia)(jia)(jia)工(gong)(gong)成(cheng)本(ben)，我(wo)們決定在臥式銑(xian)床上采用成(cheng)形齒(chi)輪銑(xian)刀銑(xian)齒(chi)法(fa)加(jia)(jia)(jia)工(gong)(gong)該(gai)錐齒(chi)輪，并通過(guo)制訂(ding)合理(li)的熱處(chu)(chu)理(li)工(gong)(gong)藝方法(fa)和(he)參(can)數來(lai)(lai)保證該(gai)齒(chi)輪的加(jia)(jia)(jia)工(gong)(gong)質(zhi)量。