具體參數

混凝土拖(tuo)泵支重(zhong)輪(lun)(lun)部件(jian)上有一(yi)配對錐齒(chi)(chi)輪(lun)(lun)，其(qi)中一(yi)個錐齒(chi)(chi)輪(lun)(lun)結構如圖1，材料為(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)(lun)的主(zhu)要技術(shu)參數為(wei)：大端端面模(mo)數為(wei)4、齒(chi)(chi)數20、齒(chi)(chi)形(xing)角(jiao)為(wei)20°、切(qie)向變位系數為(wei)0、徑向變位系數 為(wei)-0.27、大端齒(chi)(chi)高0.8mm、精度等級為(wei)8CB GB11365。由于(yu)齒(chi)(chi)面硬(ying)度要求為(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)(lun)需要進行滲碳(tan)淬(cui)火(huo)處理，滲層深度要求為(wei)0.8-1.2mm。

從技(ji)術(shu)要求和精度等(deng)級(ji)來(lai)看，該(gai)(gai)(gai)(gai)齒輪(lun)的(de)加(jia)工(gong)(gong)(gong)精度 等(deng)級(ji)要求不(bu)高，要確保(bao)(bao)該(gai)(gai)(gai)(gai)零件(jian)的(de)加(jia)工(gong)(gong)(gong)質量，關鍵在(zai)于(yu)解(jie)決(jue)好錐齒加(jia)工(gong)(gong)(gong)和熱(re)(re)處理工(gong)(gong)(gong)藝(yi)環(huan)節，由(you)于(yu)該(gai)(gai)(gai)(gai)零件(jian) 屬(shu)于(yu)試制(zhi)階(jie)段，為(wei)降低加(jia)工(gong)(gong)(gong)成本，我們決(jue)定在(zai)臥(wo)式銑(xian)(xian)床上(shang)采用成形齒輪(lun)銑(xian)(xian)刀(dao)銑(xian)(xian)齒法(fa)加(jia)工(gong)(gong)(gong)該(gai)(gai)(gai)(gai)錐齒輪(lun)，并通(tong)過(guo)制(zhi)訂(ding)合理的(de)熱(re)(re)處理工(gong)(gong)(gong)藝(yi)方法(fa)和參(can)數來(lai)保(bao)(bao)證(zheng)該(gai)(gai)(gai)(gai)齒輪(lun)的(de)加(jia)工(gong)(gong)(gong)質量。