東莞市(shi)銳鑫(xin)機(ji)電有限公司
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B棟401
具體參數
混凝土拖泵支重(zhong)輪(lun)部件上有一配對錐齒(chi)輪(lun),其中一個錐齒(chi)輪(lun)結構(gou)如(ru)圖1,材(cai)料為(wei)20CrMnTi,該(gai)齒(chi) 輪(lun)的主要技術參(can)數為(wei):大(da)端端面模數為(wei)4、齒(chi)數20、齒(chi)形角為(wei)20°、切向(xiang)變位系數為(wei)0、徑向(xiang)變位系數 為(wei)-0.27、大(da)端齒(chi)高0.8mm、精度(du)(du)等級為(wei)8CB GB11365。由(you)于齒(chi)面硬度(du)(du)要求為(wei)HRC56~64,因此,齒(chi)輪(lun)需(xu)要進行滲(shen)碳(tan)淬火處理,滲(shen)層深(shen)度(du)(du)要求為(wei)0.8-1.2mm。
從技(ji)術(shu)要求和(he)精度等級來看,該(gai)齒輪(lun)(lun)的(de)(de)加(jia)工(gong)(gong)(gong)精度 等級要求不高(gao),要確保(bao)該(gai)零(ling)件的(de)(de)加(jia)工(gong)(gong)(gong)質量,關鍵在(zai)于解決(jue)好(hao)錐(zhui)齒加(jia)工(gong)(gong)(gong)和(he)熱(re)處理(li)工(gong)(gong)(gong)藝(yi)環節,由于該(gai)零(ling)件 屬于試制階段,為降低加(jia)工(gong)(gong)(gong)成本,我們決(jue)定在(zai)臥式銑床上采用成形(xing)齒輪(lun)(lun)銑刀銑齒法加(jia)工(gong)(gong)(gong)該(gai)錐(zhui)齒輪(lun)(lun),并通過制訂(ding)合理(li)的(de)(de)熱(re)處理(li)工(gong)(gong)(gong)藝(yi)方法和(he)參數來保(bao)證該(gai)齒輪(lun)(lun)的(de)(de)加(jia)工(gong)(gong)(gong)質量。