具體參數

混凝土拖泵支(zhi)重輪部件(jian)上(shang)有一配對錐齒(chi)(chi)輪，其中一個錐齒(chi)(chi)輪結構如圖1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪的主要(yao)(yao)技(ji)術參數為(wei)(wei)：大(da)端端面模數為(wei)(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形角為(wei)(wei)20°、切向變(bian)位(wei)系數為(wei)(wei)0、徑向變(bian)位(wei)系數 為(wei)(wei)-0.27、大(da)端齒(chi)(chi)高0.8mm、精(jing)度(du)等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面硬度(du)要(yao)(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪需要(yao)(yao)進(jin)行滲(shen)碳淬(cui)火處理，滲(shen)層深度(du)要(yao)(yao)求為(wei)(wei)0.8-1.2mm。

從(cong)技(ji)術要求(qiu)和精度等級來(lai)看，該(gai)齒(chi)(chi)輪(lun)的(de)加工(gong)(gong)精度 等級要求(qiu)不高，要確(que)保(bao)該(gai)零(ling)件的(de)加工(gong)(gong)質量(liang)，關鍵(jian)在(zai)于(yu)解決好錐(zhui)齒(chi)(chi)加工(gong)(gong)和熱處理(li)工(gong)(gong)藝環節，由(you)于(yu)該(gai)零(ling)件 屬于(yu)試制階段，為降低加工(gong)(gong)成本，我們決定在(zai)臥式銑床上采用成形齒(chi)(chi)輪(lun)銑刀銑齒(chi)(chi)法加工(gong)(gong)該(gai)錐(zhui)齒(chi)(chi)輪(lun)，并通過制訂合理(li)的(de)熱處理(li)工(gong)(gong)藝方(fang)法和參數來(lai)保(bao)證該(gai)齒(chi)(chi)輪(lun)的(de)加工(gong)(gong)質量(liang)。