具體參數

混凝土拖泵支重輪部件(jian)上有(you)一(yi)配對錐(zhui)齒(chi)(chi)(chi)(chi)輪，其中(zhong)一(yi)個錐(zhui)齒(chi)(chi)(chi)(chi)輪結構(gou)如圖1，材料(liao)為(wei)20CrMnTi，該齒(chi)(chi)(chi)(chi) 輪的主要技(ji)術(shu)參數(shu)為(wei)：大(da)(da)端端面模(mo)數(shu)為(wei)4、齒(chi)(chi)(chi)(chi)數(shu)20、齒(chi)(chi)(chi)(chi)形(xing)角為(wei)20°、切(qie)向變(bian)位系數(shu)為(wei)0、徑向變(bian)位系數(shu) 為(wei)-0.27、大(da)(da)端齒(chi)(chi)(chi)(chi)高0.8mm、精度(du)(du)(du)等級為(wei)8CB GB11365。由于齒(chi)(chi)(chi)(chi)面硬(ying)度(du)(du)(du)要求(qiu)為(wei)HRC56~64，因此，齒(chi)(chi)(chi)(chi)輪需要進行滲碳淬火處理，滲層深度(du)(du)(du)要求(qiu)為(wei)0.8-1.2mm。

從技術(shu)要(yao)求(qiu)和(he)精度(du)(du)等(deng)級(ji)來看，該齒(chi)輪的加(jia)工(gong)(gong)(gong)精度(du)(du) 等(deng)級(ji)要(yao)求(qiu)不高，要(yao)確(que)保(bao)該零件的加(jia)工(gong)(gong)(gong)質量，關鍵在(zai)(zai)于(yu)解決好錐(zhui)齒(chi)加(jia)工(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)藝環節，由于(yu)該零件 屬于(yu)試制(zhi)階段，為降低加(jia)工(gong)(gong)(gong)成(cheng)本，我們決定在(zai)(zai)臥式(shi)銑床上采(cai)用成(cheng)形齒(chi)輪銑刀銑齒(chi)法加(jia)工(gong)(gong)(gong)該錐(zhui)齒(chi)輪，并(bing)通過制(zhi)訂合理的熱處理工(gong)(gong)(gong)藝方法和(he)參數來保(bao)證該齒(chi)輪的加(jia)工(gong)(gong)(gong)質量。