新型复合摆线外啮合圆柱齿轮副的传动特性分析

发布时间：2018-03-11 07:09

本文选题：复合摆线齿轮　切入点：齿轮传动　出处：《西安交通大学学报》2016年09期 　论文类型：期刊论文

【摘要】：基于传统摆线成形原理,提出了摆线成形的二连杆等效机构转化方法,得到了n+1连杆机构生成广义n阶摆线轨迹的运动规律,推导并建立了可用于齿轮传动的新型四阶复合摆线齿廓方程;基于微分几何及共轭啮合理论,推导了复合摆线齿廓的共轭齿廓方程,分析了该新型齿轮副的压力角、曲率、重合度、滑动率等啮合特性;进行了齿轮副三维实体模型的精确构建,并利用有限元法分析了该齿轮副的强度特性。研究表明:当齿高确定时,分度圆压力角由齿形调控系数f1控制;齿廓曲线是由凹凸弧组成的光滑曲线,且传动过程始终为凹凸齿面线接触啮合传动,理论上具有较高的接触疲劳强度;相对于渐开线齿轮,复合摆线齿轮副具有较高的重合度、极小的滑动率以及较高的弯曲强度和接触强度。最后,加工了齿轮副试验样件,并在FZG齿轮试验机上测试了不同工况下的传动效率,结果表明:复合摆线齿轮副的传动效率随加载扭矩在97.30%~99.00%范围内呈正相关变化,且高于同工况下的渐开线齿轮副,具有工程应用价值。
[Abstract]:Based on the traditional cycloid forming principle, a two-link equivalent mechanism transformation method for cycloid forming is proposed, and the kinematic law of generating generalized n-order cycloid locus of n-link mechanism is obtained. Based on the differential geometry and conjugate meshing theory, the conjugate tooth profile equation of the composite cycloid tooth profile is derived, and the pressure angle and curvature of the new gear pair are analyzed. The three dimensional solid model of the gear pair is constructed accurately, and the strength characteristic of the gear pair is analyzed by using finite element method. The results show that: when the tooth height is determined, The indexing circular pressure angle is controlled by the tooth profile regulation coefficient F1, and the tooth profile curve is a smooth curve composed of concave and convex arc, and the transmission process is always linear contact meshing transmission with concave and convex tooth surface, which has high contact fatigue strength in theory. Compared with involute gear, the composite cycloidal gear pair has higher coincidence degree, minimal slip rate and higher bending strength and contact strength. The transmission efficiency of the composite cycloid gear pair is tested in FZG gear testing machine under different working conditions. The results show that the transmission efficiency of the composite cycloid gear pair varies positively with the loading torque in the range of 97.30% and 99.00%, and is higher than that of the involute gear pair under the same working condition. It has engineering application value.
【作者单位】：重庆大学机械传动国家重点实验室;
【分类号】：TH132

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