具體參數

混凝土拖泵支(zhi)重(zhong)輪(lun)部(bu)件上有一(yi)配對錐齒(chi)(chi)輪(lun)，其(qi)中一(yi)個錐齒(chi)(chi)輪(lun)結構如圖1，材料為(wei)(wei)20CrMnTi，該齒(chi)(chi) 輪(lun)的主要技術參數(shu)為(wei)(wei)：大端端面模數(shu)為(wei)(wei)4、齒(chi)(chi)數(shu)20、齒(chi)(chi)形角為(wei)(wei)20°、切向(xiang)變位(wei)系數(shu)為(wei)(wei)0、徑向(xiang)變位(wei)系數(shu) 為(wei)(wei)-0.27、大端齒(chi)(chi)高0.8mm、精度(du)等級為(wei)(wei)8CB GB11365。由于齒(chi)(chi)面硬度(du)要求為(wei)(wei)HRC56~64，因此，齒(chi)(chi)輪(lun)需要進行滲(shen)碳淬火處理，滲(shen)層深度(du)要求為(wei)(wei)0.8-1.2mm。

從(cong)技術要求(qiu)和(he)精度等(deng)(deng)級(ji)來看(kan)，該齒(chi)(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)精度 等(deng)(deng)級(ji)要求(qiu)不(bu)高，要確(que)保該零件的(de)加(jia)工(gong)(gong)質量，關(guan)鍵在(zai)于(yu)解決好錐齒(chi)(chi)(chi)加(jia)工(gong)(gong)和(he)熱(re)(re)處理(li)工(gong)(gong)藝(yi)環節(jie)，由于(yu)該零件 屬于(yu)試(shi)制階(jie)段(duan)，為降低加(jia)工(gong)(gong)成本，我們決定在(zai)臥式銑(xian)(xian)床上采用成形(xing)齒(chi)(chi)(chi)輪(lun)銑(xian)(xian)刀銑(xian)(xian)齒(chi)(chi)(chi)法(fa)加(jia)工(gong)(gong)該錐齒(chi)(chi)(chi)輪(lun)，并通過制訂合理(li)的(de)熱(re)(re)處理(li)工(gong)(gong)藝(yi)方(fang)法(fa)和(he)參數來保證該齒(chi)(chi)(chi)輪(lun)的(de)加(jia)工(gong)(gong)質量。