具體參數

混凝土拖(tuo)泵支重輪部件上有一配對(dui)錐齒(chi)(chi)輪，其中一個錐齒(chi)(chi)輪結構如(ru)圖1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪的主要技術(shu)參(can)數(shu)為(wei)(wei)：大端(duan)端(duan)面模數(shu)為(wei)(wei)4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角為(wei)(wei)20°、切(qie)向變(bian)位系數(shu)為(wei)(wei)0、徑向變(bian)位系數(shu) 為(wei)(wei)-0.27、大端(duan)齒(chi)(chi)高0.8mm、精(jing)度等級為(wei)(wei)8CB GB11365。由于(yu)齒(chi)(chi)面硬度要求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪需(xu)要進行滲(shen)(shen)碳(tan)淬火處理(li)，滲(shen)(shen)層深度要求為(wei)(wei)0.8-1.2mm。

從技(ji)術要求和(he)精(jing)度等級來(lai)看，該齒(chi)輪(lun)的加(jia)(jia)工(gong)(gong)(gong)精(jing)度 等級要求不(bu)高(gao)，要確(que)保該零(ling)件的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量，關鍵在于(yu)(yu)解決(jue)好錐(zhui)齒(chi)加(jia)(jia)工(gong)(gong)(gong)和(he)熱(re)處理工(gong)(gong)(gong)藝環節，由于(yu)(yu)該零(ling)件 屬于(yu)(yu)試制階(jie)段，為降低加(jia)(jia)工(gong)(gong)(gong)成本，我們決(jue)定在臥式銑(xian)床上采用(yong)成形齒(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)法加(jia)(jia)工(gong)(gong)(gong)該錐(zhui)齒(chi)輪(lun)，并通過(guo)制訂合理的熱(re)處理工(gong)(gong)(gong)藝方法和(he)參數來(lai)保證該齒(chi)輪(lun)的加(jia)(jia)工(gong)(gong)(gong)質(zhi)量。