具體參數

混凝土拖泵支(zhi)重輪(lun)(lun)部件上有一配對錐齒(chi)輪(lun)(lun)，其中一個錐齒(chi)輪(lun)(lun)結(jie)構如圖1，材料(liao)為(wei)(wei)(wei)(wei)20CrMnTi，該(gai)齒(chi) 輪(lun)(lun)的主要(yao)(yao)技術參(can)數(shu)(shu)為(wei)(wei)(wei)(wei)：大端端面模數(shu)(shu)為(wei)(wei)(wei)(wei)4、齒(chi)數(shu)(shu)20、齒(chi)形(xing)角為(wei)(wei)(wei)(wei)20°、切向(xiang)變(bian)位(wei)系數(shu)(shu)為(wei)(wei)(wei)(wei)0、徑向(xiang)變(bian)位(wei)系數(shu)(shu) 為(wei)(wei)(wei)(wei)-0.27、大端齒(chi)高0.8mm、精度(du)等級為(wei)(wei)(wei)(wei)8CB GB11365。由于齒(chi)面硬度(du)要(yao)(yao)求(qiu)為(wei)(wei)(wei)(wei)HRC56~64，因此，齒(chi)輪(lun)(lun)需要(yao)(yao)進(jin)行滲碳淬(cui)火處理，滲層深度(du)要(yao)(yao)求(qiu)為(wei)(wei)(wei)(wei)0.8-1.2mm。

從技(ji)術要求(qiu)和精度(du)等級(ji)來看(kan)，該(gai)(gai)齒輪的加(jia)(jia)工(gong)(gong)精度(du) 等級(ji)要求(qiu)不高，要確保該(gai)(gai)零件(jian)的加(jia)(jia)工(gong)(gong)質量，關鍵在(zai)于解(jie)決好錐(zhui)齒加(jia)(jia)工(gong)(gong)和熱處理工(gong)(gong)藝(yi)(yi)環節(jie)，由于該(gai)(gai)零件(jian) 屬于試制階段(duan)，為(wei)降(jiang)低加(jia)(jia)工(gong)(gong)成本，我(wo)們決定在(zai)臥式銑(xian)(xian)床上采用成形(xing)齒輪銑(xian)(xian)刀銑(xian)(xian)齒法加(jia)(jia)工(gong)(gong)該(gai)(gai)錐(zhui)齒輪，并(bing)通過制訂合理的熱處理工(gong)(gong)藝(yi)(yi)方法和參數(shu)來保證(zheng)該(gai)(gai)齒輪的加(jia)(jia)工(gong)(gong)質量。