東(dong)莞市銳鑫(xin)機電有限公司(si)
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B棟401
具體參數
混凝土拖(tuo)泵支重輪(lun)部(bu)件上有一(yi)配對錐齒(chi)(chi)輪(lun),其中一(yi)個錐齒(chi)(chi)輪(lun)結構如圖1,材料為(wei)20CrMnTi,該齒(chi)(chi) 輪(lun)的主要(yao)(yao)技術參(can)數(shu)為(wei):大端(duan)端(duan)面模數(shu)為(wei)4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角為(wei)20°、切向變位系數(shu)為(wei)0、徑向變位系數(shu) 為(wei)-0.27、大端(duan)齒(chi)(chi)高(gao)0.8mm、精(jing)度等級為(wei)8CB GB11365。由于齒(chi)(chi)面硬(ying)度要(yao)(yao)求為(wei)HRC56~64,因此,齒(chi)(chi)輪(lun)需(xu)要(yao)(yao)進行滲碳(tan)淬火處理,滲層深(shen)度要(yao)(yao)求為(wei)0.8-1.2mm。
從(cong)技術要(yao)求和(he)精(jing)度等級來(lai)看,該(gai)齒(chi)(chi)輪的(de)加(jia)工(gong)(gong)精(jing)度 等級要(yao)求不高,要(yao)確保(bao)(bao)該(gai)零件(jian)的(de)加(jia)工(gong)(gong)質(zhi)(zhi)量(liang)(liang),關鍵在(zai)(zai)于(yu)解決好錐齒(chi)(chi)加(jia)工(gong)(gong)和(he)熱處理(li)工(gong)(gong)藝環節(jie),由于(yu)該(gai)零件(jian) 屬于(yu)試(shi)制(zhi)階(jie)段(duan),為降低加(jia)工(gong)(gong)成本,我們決定在(zai)(zai)臥(wo)式(shi)銑床上采用成形齒(chi)(chi)輪銑刀(dao)銑齒(chi)(chi)法加(jia)工(gong)(gong)該(gai)錐齒(chi)(chi)輪,并通(tong)過制(zhi)訂合理(li)的(de)熱處理(li)工(gong)(gong)藝方(fang)法和(he)參數(shu)來(lai)保(bao)(bao)證該(gai)齒(chi)(chi)輪的(de)加(jia)工(gong)(gong)質(zhi)(zhi)量(liang)(liang)。