具體參數

混凝土拖(tuo)泵支重輪(lun)部件上有一配(pei)對(dui)錐齒(chi)(chi)(chi)(chi)(chi)輪(lun)，其中(zhong)一個錐齒(chi)(chi)(chi)(chi)(chi)輪(lun)結構如圖1，材(cai)料為(wei)(wei)20CrMnTi，該(gai)齒(chi)(chi)(chi)(chi)(chi) 輪(lun)的主要(yao)技(ji)術參數(shu)為(wei)(wei)：大(da)端端面模數(shu)為(wei)(wei)4、齒(chi)(chi)(chi)(chi)(chi)數(shu)20、齒(chi)(chi)(chi)(chi)(chi)形(xing)角(jiao)為(wei)(wei)20°、切向變位系數(shu)為(wei)(wei)0、徑向變位系數(shu) 為(wei)(wei)-0.27、大(da)端齒(chi)(chi)(chi)(chi)(chi)高0.8mm、精度(du)等(deng)級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)(chi)(chi)(chi)面硬度(du)要(yao)求(qiu)為(wei)(wei)HRC56~64，因(yin)此，齒(chi)(chi)(chi)(chi)(chi)輪(lun)需要(yao)進行滲(shen)碳淬火處理，滲(shen)層(ceng)深度(du)要(yao)求(qiu)為(wei)(wei)0.8-1.2mm。

從技術(shu)要求和(he)精度等(deng)級來看，該齒(chi)輪的(de)加(jia)(jia)工(gong)(gong)(gong)精度 等(deng)級要求不高，要確保(bao)該零(ling)(ling)件的(de)加(jia)(jia)工(gong)(gong)(gong)質量，關(guan)鍵在于解決好錐(zhui)齒(chi)加(jia)(jia)工(gong)(gong)(gong)和(he)熱處理工(gong)(gong)(gong)藝(yi)環節，由于該零(ling)(ling)件 屬(shu)于試制(zhi)(zhi)階段，為降低加(jia)(jia)工(gong)(gong)(gong)成本，我(wo)們決定(ding)在臥式銑(xian)床上采用成形齒(chi)輪銑(xian)刀銑(xian)齒(chi)法加(jia)(jia)工(gong)(gong)(gong)該錐(zhui)齒(chi)輪，并通過制(zhi)(zhi)訂合理的(de)熱處理工(gong)(gong)(gong)藝(yi)方法和(he)參數來保(bao)證該齒(chi)輪的(de)加(jia)(jia)工(gong)(gong)(gong)質量。