【摘要】：由于傳遞扭矩大、體積及質(zhì)量小的特點,面齒輪作為一個新型航空傳動齒輪越來越受到人們的重視,如何提高其傳動嚙合性能成為了研究的熱點,因此,本文對圓柱齒輪齒廓和齒向修形的面齒輪副嚙合特性進行了研究,以期為優(yōu)化設(shè)計面齒輪副提供依據(jù)。主要研究內(nèi)容包括： 面齒輪加工和嚙合理論分析。推導出面齒輪工作齒面以及過渡齒面方程。根據(jù)面齒輪齒面特點,求解了面齒輪齒頂變尖的最大外半徑以及不發(fā)生根切的最小內(nèi)半徑,建立了圓柱齒輪和面齒輪的三維模型。 面齒輪副圓柱齒輪的齒廓拋物線修形和齒向磨齒修鼓方法研究。通過ABAQUS軟件對面齒輪傳動進行了有限元接觸分析,得到了最大主應力、接觸面積以及傳動誤差等嚙合參數(shù),結(jié)果表明,修形面齒輪副獲得了更小的傳動誤差。 修形面齒輪副傳動的結(jié)構(gòu)性振動和噪聲分析。通過模態(tài)分析得到了面齒輪副系統(tǒng)的固有振型和固有頻率。建立了正交面齒輪的彈性振動模型,并用ADAMS軟件進行求解,得到了面齒輪角加速度時域和頻域圖,并分析了負載和轉(zhuǎn)速對角加速度的影響。根據(jù)加速度級1/3倍頻程結(jié)構(gòu)噪聲方程,計算了面齒輪在嚙合頻率處的結(jié)構(gòu)性噪聲值。 制造了面齒輪及修形圓柱齒輪,在檢測機上測量了不同面齒輪傳動副的接觸壓力、傳動誤差、振動加速度,驗證了仿真結(jié)果及研究方法的正確性。圖50幅,表15個,參考文獻72篇。
[Abstract]:Due to the characteristics of large torque transmission, small volume and small mass, surface gear, as a new type of aeronautical transmission gear, has been paid more and more attention to. How to improve its transmission meshing performance has become a hot research topic. In this paper, the meshing characteristics of cylindrical gear tooth profile and face gear pair with tooth profile modification are studied in order to provide the basis for the optimization design of surface gear pair. The main research contents include: surface gear machining and meshing theory analysis. The equations of the working tooth surface and the transition tooth surface of the front gear are derived. According to the tooth surface characteristics of the face gear, the maximum outer radius and the minimum inner radius of the top tip of the face gear are solved, and the three-dimensional model of the cylindrical gear and the face gear is established. Research on tooth profile parabola modification and tooth grinding drum modification method of surface gear pair cylindrical gear. Through finite element contact analysis of face gear transmission with ABAQUS software, the meshing parameters such as maximum principal stress, contact area and transmission error are obtained. The results show that the gear pair with modified profile has a smaller transmission error. Structural Vibration and noise Analysis of Modification Gear pair Transmission. Through modal analysis, the natural mode and natural frequency of the surface gear pair system are obtained. The elastic vibration model of orthogonal gear is established and solved by ADAMS software. The time domain and frequency domain diagrams of angular acceleration of surface gear are obtained, and the effects of load and rotation speed on angular acceleration are analyzed. Based on the structural noise equation of 1 / 3 octave of acceleration, the structural noise value of surface gear at meshing frequency is calculated. The surface gear and modified cylindrical gear are manufactured. The contact pressure, transmission error and vibration acceleration of different face gear transmission pairs are measured on the tester, and the correctness of the simulation results and the research methods are verified. There are 50 pictures, 15 tables and 72 references.
【學位授予單位】：中南大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TH132.41

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