具體參數

混凝土(tu)拖泵支重(zhong)輪(lun)部件上有一配對錐(zhui)(zhui)齒(chi)(chi)(chi)輪(lun)，其中一個錐(zhui)(zhui)齒(chi)(chi)(chi)輪(lun)結(jie)構(gou)如(ru)圖(tu)1，材料為(wei)(wei)(wei)20CrMnTi，該(gai)齒(chi)(chi)(chi) 輪(lun)的主要(yao)技(ji)術參數(shu)(shu)(shu)為(wei)(wei)(wei)：大端端面模數(shu)(shu)(shu)為(wei)(wei)(wei)4、齒(chi)(chi)(chi)數(shu)(shu)(shu)20、齒(chi)(chi)(chi)形角為(wei)(wei)(wei)20°、切(qie)向(xiang)變位系數(shu)(shu)(shu)為(wei)(wei)(wei)0、徑向(xiang)變位系數(shu)(shu)(shu) 為(wei)(wei)(wei)-0.27、大端齒(chi)(chi)(chi)高0.8mm、精度(du)等(deng)級為(wei)(wei)(wei)8CB GB11365。由(you)于齒(chi)(chi)(chi)面硬度(du)要(yao)求(qiu)為(wei)(wei)(wei)HRC56~64，因此(ci)，齒(chi)(chi)(chi)輪(lun)需要(yao)進(jin)行滲(shen)碳淬火(huo)處(chu)理，滲(shen)層深度(du)要(yao)求(qiu)為(wei)(wei)(wei)0.8-1.2mm。

從技術(shu)要(yao)求和精(jing)度等級來(lai)看，該(gai)齒輪的(de)加(jia)工(gong)(gong)精(jing)度 等級要(yao)求不高，要(yao)確保該(gai)零(ling)件的(de)加(jia)工(gong)(gong)質量，關(guan)鍵在于(yu)解決(jue)好(hao)錐(zhui)齒加(jia)工(gong)(gong)和熱(re)處理工(gong)(gong)藝(yi)環節，由于(yu)該(gai)零(ling)件 屬于(yu)試(shi)制階段，為降低加(jia)工(gong)(gong)成本，我們決(jue)定在臥式銑(xian)床上采用成形齒輪銑(xian)刀銑(xian)齒法(fa)加(jia)工(gong)(gong)該(gai)錐(zhui)齒輪，并通過制訂合理的(de)熱(re)處理工(gong)(gong)藝(yi)方法(fa)和參數來(lai)保證該(gai)齒輪的(de)加(jia)工(gong)(gong)質量。