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單圓弧齒輪傳動的嚙合特性

2014-09-23 16:13 作者:管理員11 來源:未知 瀏覽: 字號:

摘要:圓弧齒輪傳動的嚙合特性 齒輪傳動的嚙合特性是檢查齒輪傳動平穩性的重 要質最指標。為保證齒輪連續平穩地傳動,不僅要求 一對輪齒齒面能夠實現定傳動比傳動,而且要求傳動 時各對輪齒的銜接也要平穩,這就要由重合度 來保證。合理地選擇重合度不僅能保證傳動

圓弧齒輪傳動的嚙合特性
    齒輪傳動的嚙合特性是檢查齒輪傳動平穩性的重
要質最指標。為保證齒輪連續平穩地傳動,不僅要求
一對輪齒齒面能夠實現定傳動比傳動,而且要求傳動
時各對輪齒的“銜接”也要平穩,這就要由重合度
來保證。合理地選擇重合度不僅能保證傳動的平穩
性,而且能提高傳動的承載能力,這在雙圓弧齒輪傳
動中尤為突出。
單圓弧齒輪傳動的嚙合特性
    單圓弧齒輪傳動,經磨合后在端面內為瞬時接
觸,傳動的連續性和平穩性是靠縱向重合度εβ保證

圓弧齒輪分度圓柱展開圖
    由上式可知,只要選擇較大的螺旋角β,即使齒
寬b一定,也能獲得足夠大的重合度εr。但β的選取
還應考慮輪齒強度、軸承壽命、傳動效率等因素。
(責任編輯:laugh521521)
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