具體參數

混凝土拖泵支(zhi)重輪部(bu)件上有(you)一(yi)配對錐齒(chi)(chi)(chi)(chi)(chi)輪，其中一(yi)個錐齒(chi)(chi)(chi)(chi)(chi)輪結構如(ru)圖1，材(cai)料為(wei)(wei)(wei)20CrMnTi，該齒(chi)(chi)(chi)(chi)(chi) 輪的主要技術參(can)數(shu)(shu)(shu)(shu)為(wei)(wei)(wei)：大端端面模數(shu)(shu)(shu)(shu)為(wei)(wei)(wei)4、齒(chi)(chi)(chi)(chi)(chi)數(shu)(shu)(shu)(shu)20、齒(chi)(chi)(chi)(chi)(chi)形(xing)角為(wei)(wei)(wei)20°、切向變位(wei)(wei)系(xi)數(shu)(shu)(shu)(shu)為(wei)(wei)(wei)0、徑(jing)向變位(wei)(wei)系(xi)數(shu)(shu)(shu)(shu) 為(wei)(wei)(wei)-0.27、大端齒(chi)(chi)(chi)(chi)(chi)高0.8mm、精度(du)等級為(wei)(wei)(wei)8CB GB11365。由于齒(chi)(chi)(chi)(chi)(chi)面硬度(du)要求(qiu)為(wei)(wei)(wei)HRC56~64，因(yin)此，齒(chi)(chi)(chi)(chi)(chi)輪需要進行滲(shen)碳(tan)淬火處理，滲(shen)層(ceng)深度(du)要求(qiu)為(wei)(wei)(wei)0.8-1.2mm。

從技術要(yao)求(qiu)和精度等(deng)級來看，該(gai)齒(chi)(chi)輪(lun)的加(jia)工(gong)(gong)精度 等(deng)級要(yao)求(qiu)不高，要(yao)確保該(gai)零(ling)件的加(jia)工(gong)(gong)質量(liang)(liang)，關鍵在于(yu)解決(jue)好錐(zhui)齒(chi)(chi)加(jia)工(gong)(gong)和熱處理(li)工(gong)(gong)藝環節(jie)，由于(yu)該(gai)零(ling)件 屬于(yu)試制階(jie)段，為降(jiang)低加(jia)工(gong)(gong)成(cheng)本，我們決(jue)定(ding)在臥(wo)式銑床上(shang)采用成(cheng)形齒(chi)(chi)輪(lun)銑刀(dao)銑齒(chi)(chi)法加(jia)工(gong)(gong)該(gai)錐(zhui)齒(chi)(chi)輪(lun)，并通過(guo)制訂合理(li)的熱處理(li)工(gong)(gong)藝方(fang)法和參(can)數來保證該(gai)齒(chi)(chi)輪(lun)的加(jia)工(gong)(gong)質量(liang)(liang)。