具體參數

混凝土拖泵(beng)支重輪部件上有一(yi)配對錐(zhui)齒(chi)(chi)輪，其中一(yi)個錐(zhui)齒(chi)(chi)輪結(jie)構如圖1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪的主要(yao)技術參數為(wei)(wei)：大端(duan)(duan)端(duan)(duan)面模數為(wei)(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形角為(wei)(wei)20°、切向變位系數為(wei)(wei)0、徑(jing)向變位系數 為(wei)(wei)-0.27、大端(duan)(duan)齒(chi)(chi)高(gao)0.8mm、精度等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面硬(ying)度要(yao)求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪需要(yao)進行(xing)滲(shen)碳(tan)淬火處(chu)理(li)，滲(shen)層深度要(yao)求為(wei)(wei)0.8-1.2mm。

從技(ji)術要求(qiu)和精度(du)等(deng)級(ji)來看，該(gai)齒輪的(de)加(jia)(jia)工(gong)(gong)(gong)精度(du) 等(deng)級(ji)要求(qiu)不高，要確保該(gai)零件的(de)加(jia)(jia)工(gong)(gong)(gong)質量，關鍵在于(yu)解決(jue)好錐齒加(jia)(jia)工(gong)(gong)(gong)和熱處(chu)理工(gong)(gong)(gong)藝環節，由于(yu)該(gai)零件 屬于(yu)試制階段，為降(jiang)低加(jia)(jia)工(gong)(gong)(gong)成本(ben)，我們決(jue)定在臥式銑(xian)床上(shang)采(cai)用成形齒輪銑(xian)刀銑(xian)齒法加(jia)(jia)工(gong)(gong)(gong)該(gai)錐齒輪，并通過制訂合理的(de)熱處(chu)理工(gong)(gong)(gong)藝方法和參(can)數來保證該(gai)齒輪的(de)加(jia)(jia)工(gong)(gong)(gong)質量。