具體參數

混凝(ning)土拖(tuo)泵支重(zhong)輪(lun)部件上(shang)有一(yi)配對錐齒輪(lun)，其中一(yi)個(ge)錐齒輪(lun)結構如(ru)圖1，材料為(wei)(wei)20CrMnTi，該齒 輪(lun)的主要(yao)技術參(can)數(shu)為(wei)(wei)：大端(duan)端(duan)面模數(shu)為(wei)(wei)4、齒數(shu)20、齒形角為(wei)(wei)20°、切(qie)向變(bian)位系數(shu)為(wei)(wei)0、徑(jing)向變(bian)位系數(shu) 為(wei)(wei)-0.27、大端(duan)齒高(gao)0.8mm、精度(du)(du)等級為(wei)(wei)8CB GB11365。由于齒面硬度(du)(du)要(yao)求為(wei)(wei)HRC56~64，因此，齒輪(lun)需要(yao)進行滲碳淬火處理(li)，滲層(ceng)深度(du)(du)要(yao)求為(wei)(wei)0.8-1.2mm。

從技術要求(qiu)和(he)精度(du)等級(ji)來看，該(gai)齒(chi)(chi)(chi)(chi)輪(lun)的(de)加(jia)(jia)(jia)(jia)工(gong)(gong)精度(du) 等級(ji)要求(qiu)不高，要確保(bao)該(gai)零件的(de)加(jia)(jia)(jia)(jia)工(gong)(gong)質量，關(guan)鍵在于(yu)解(jie)決好錐(zhui)齒(chi)(chi)(chi)(chi)加(jia)(jia)(jia)(jia)工(gong)(gong)和(he)熱(re)處理工(gong)(gong)藝(yi)環節，由于(yu)該(gai)零件 屬于(yu)試(shi)制(zhi)階段(duan)，為(wei)降低加(jia)(jia)(jia)(jia)工(gong)(gong)成(cheng)本，我(wo)們決定在臥式銑(xian)床上采用(yong)成(cheng)形齒(chi)(chi)(chi)(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)(chi)(chi)(chi)法加(jia)(jia)(jia)(jia)工(gong)(gong)該(gai)錐(zhui)齒(chi)(chi)(chi)(chi)輪(lun)，并(bing)通過(guo)制(zhi)訂合理的(de)熱(re)處理工(gong)(gong)藝(yi)方(fang)法和(he)參數(shu)來保(bao)證該(gai)齒(chi)(chi)(chi)(chi)輪(lun)的(de)加(jia)(jia)(jia)(jia)工(gong)(gong)質量。