变齿厚内齿轮包络鼓形蜗杆强度分析

发布时间：2018-10-17 08:12

【摘要】：利用微分几何与啮合理论建立变齿厚内齿轮包络鼓形蜗杆齿面数学模型。基于有限元法分析了齿面接触应力在不同工况下的载荷分布情况,探讨了内齿轮沿齿宽方向齿面倾角δ对鼓形蜗杆副的影响。通过齿面应力分布与齿间载荷分配的分析,比较了有限元法与经验强度公式法的结果,验证了有限元法的可行性。结果表明:变齿厚内齿轮齿面应力主要分布于内齿轮中间平面一侧,最大应力出现在内齿轮齿顶处;第一、二个啮合齿载荷分配较高,另外两个啮合齿载荷分配较小;在额定载荷工况下,齿间载荷分配相对均匀。
[Abstract]:Based on differential geometry and meshing theory, a mathematical model of the tooth surface of the enveloped drum worm with variable tooth thickness is established. Based on the finite element method, the load distribution of tooth surface contact stress under different working conditions is analyzed, and the influence of tooth face inclination angle 未 along the wide tooth direction on drum worm gear pair is discussed. Through the analysis of stress distribution and load distribution between teeth, the results of finite element method and empirical strength formula are compared, and the feasibility of finite element method is verified. The results show that the stress on the tooth surface of the internal gear with variable tooth thickness is mainly distributed in the middle plane side of the inner gear, and the maximum stress appears at the top of the inner gear tooth, first, the load distribution of the two meshing teeth is higher, and the load distribution of the other two meshing teeth is smaller. Under rated load condition, the load distribution between teeth is relatively uniform.
【作者单位】：西华大学;
【基金】：国家自然科学基金(51575456) 西华大学研究生创新基金(ycjj2016032)
【分类号】：TH132.44

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