具體參數

混凝土拖泵(beng)支重輪(lun)部(bu)件上有(you)一配對錐齒(chi)(chi)(chi)(chi)(chi)輪(lun)，其中一個錐齒(chi)(chi)(chi)(chi)(chi)輪(lun)結構如圖1，材(cai)料為(wei)(wei)(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi)(chi)(chi)(chi) 輪(lun)的主(zhu)要(yao)技術參數為(wei)(wei)(wei)(wei)(wei)：大端端面(mian)模(mo)數為(wei)(wei)(wei)(wei)(wei)4、齒(chi)(chi)(chi)(chi)(chi)數20、齒(chi)(chi)(chi)(chi)(chi)形角為(wei)(wei)(wei)(wei)(wei)20°、切向(xiang)變位系數為(wei)(wei)(wei)(wei)(wei)0、徑向(xiang)變位系數 為(wei)(wei)(wei)(wei)(wei)-0.27、大端齒(chi)(chi)(chi)(chi)(chi)高(gao)0.8mm、精度等級為(wei)(wei)(wei)(wei)(wei)8CB GB11365。由于齒(chi)(chi)(chi)(chi)(chi)面(mian)硬(ying)度要(yao)求(qiu)為(wei)(wei)(wei)(wei)(wei)HRC56~64，因(yin)此(ci)，齒(chi)(chi)(chi)(chi)(chi)輪(lun)需要(yao)進行滲(shen)碳淬(cui)火處理，滲(shen)層(ceng)深度要(yao)求(qiu)為(wei)(wei)(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)求和(he)精(jing)(jing)度等(deng)(deng)級來看，該(gai)齒(chi)(chi)輪(lun)的(de)(de)加(jia)工(gong)(gong)精(jing)(jing)度 等(deng)(deng)級要(yao)求不高，要(yao)確保該(gai)零(ling)件(jian)的(de)(de)加(jia)工(gong)(gong)質(zhi)量，關鍵在(zai)于解決(jue)好錐齒(chi)(chi)加(jia)工(gong)(gong)和(he)熱處理(li)工(gong)(gong)藝(yi)環節，由(you)于該(gai)零(ling)件(jian) 屬于試制階(jie)段(duan)，為(wei)降低(di)加(jia)工(gong)(gong)成本，我們決(jue)定在(zai)臥式銑(xian)(xian)床上(shang)采用成形(xing)齒(chi)(chi)輪(lun)銑(xian)(xian)刀(dao)銑(xian)(xian)齒(chi)(chi)法(fa)(fa)加(jia)工(gong)(gong)該(gai)錐齒(chi)(chi)輪(lun)，并通過制訂合理(li)的(de)(de)熱處理(li)工(gong)(gong)藝(yi)方法(fa)(fa)和(he)參數來保證該(gai)齒(chi)(chi)輪(lun)的(de)(de)加(jia)工(gong)(gong)質(zhi)量。