東莞市銳鑫機(ji)電有(you)限公司
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B棟401
具體參數
混凝土拖泵支重輪部件上有一配對錐(zhui)齒輪,其中一個錐(zhui)齒輪結構如圖1,材料為(wei)(wei)(wei)20CrMnTi,該齒 輪的主要(yao)技術參數(shu)(shu)(shu)為(wei)(wei)(wei):大端(duan)(duan)端(duan)(duan)面模數(shu)(shu)(shu)為(wei)(wei)(wei)4、齒數(shu)(shu)(shu)20、齒形(xing)角為(wei)(wei)(wei)20°、切向變位(wei)系數(shu)(shu)(shu)為(wei)(wei)(wei)0、徑向變位(wei)系數(shu)(shu)(shu) 為(wei)(wei)(wei)-0.27、大端(duan)(duan)齒高0.8mm、精度等級為(wei)(wei)(wei)8CB GB11365。由于(yu)齒面硬度要(yao)求(qiu)(qiu)為(wei)(wei)(wei)HRC56~64,因(yin)此,齒輪需要(yao)進行滲(shen)碳淬火處理,滲(shen)層深(shen)度要(yao)求(qiu)(qiu)為(wei)(wei)(wei)0.8-1.2mm。
從技術要求和精度等級來看(kan),該(gai)齒(chi)輪(lun)的(de)加(jia)工(gong)(gong)(gong)精度 等級要求不高(gao),要確(que)保該(gai)零件的(de)加(jia)工(gong)(gong)(gong)質量,關(guan)鍵(jian)在(zai)(zai)于解決好錐(zhui)齒(chi)加(jia)工(gong)(gong)(gong)和熱(re)處(chu)理工(gong)(gong)(gong)藝環節,由于該(gai)零件 屬(shu)于試制(zhi)階段(duan),為降(jiang)低加(jia)工(gong)(gong)(gong)成(cheng)本,我們決定在(zai)(zai)臥式銑(xian)床(chuang)上采用成(cheng)形(xing)齒(chi)輪(lun)銑(xian)刀銑(xian)齒(chi)法(fa)加(jia)工(gong)(gong)(gong)該(gai)錐(zhui)齒(chi)輪(lun),并通過(guo)制(zhi)訂(ding)合理的(de)熱(re)處(chu)理工(gong)(gong)(gong)藝方(fang)法(fa)和參(can)數來保證該(gai)齒(chi)輪(lun)的(de)加(jia)工(gong)(gong)(gong)質量。