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齒輪的齒頂修緣

2014-09-22 16:51 作者:管理員11 來源:未知 瀏覽: 字號:

摘要:齒輪的齒頂修緣 對于圓周速度較大的齒輪傳動,為減少齒輪的嚙 入、嚙出沖擊,降低振動噪聲,增加傳動平穩性,提 高抗膠合能力,可通過齒頂修緣來實現。 對于6~8級的圓柱齒輪傳動,當圓周速度大于 表8.2-136中數值需要修緣時,推薦使用表8.2-137 中的數值。

齒輪的齒頂修緣
    對于圓周速度較大的齒輪傳動,為減少齒輪的嚙
入、嚙出沖擊,降低振動噪聲,增加傳動平穩性,提
高抗膠合能力,可通過齒頂修緣來實現。
    對于6~8級的圓柱齒輪傳動,當圓周速度大于
表8.2-136中數值需要修緣時,推薦使用表8.2-137
中的數值。
外嚙合圓柱齒輪的許用圓周速度
    以下情況不進行齒頂修緣:
    1)因修緣的結果,在直齒輪傳動中使重合度ε
<1.089,在斜齒輪傳動中使端面重合度εα<1。
    2)當斜齒輪的螺旋角β>17°45′時。
    對外嚙合高變位齒輪傳動(x1十x2=0),齒頂修
緣后使重合度(或端面重合度)達到1.089(直齒)
或1.0(斜齒)的條件,可按圖8.2-82求得,即此時
齒輪的變位系數x不得大于按圖8.2-82求得的數值。
    例一對外嚙合高變位直齒圓柱齒輪,z1=20。
由圖可知,當x1=0.62時,端面重合度εα=1.089;
如果x1>0.62,則εα<1.089。
齒頂修緣高度和深度
高變位齒輪傳動在端面重合度
(責任編輯:laugh521521)
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