行星齿轮箱典型故障对内齿圈齿根应变的作用机理研究

发布时间：2018-06-21 01:21

本文选题：行星齿轮箱 + 内齿圈　；参考：《振动与冲击》2017年09期

【摘要】：行星齿轮箱由于具有优良的特性被广泛应用于多领域的机械传动系统中,但恶劣的工作条件导致其故障频发,因此开展行星齿轮箱故障诊断方法的研究工作十分必要。传统的基于振动信号的故障诊断方法在识别行星齿轮箱早期微弱故障方面具有局限性,为此提出基于内齿圈齿根应变信号的行星齿轮箱故障诊断方法,并主要开展行星齿轮箱典型故障对内齿圈齿根应变的作用机理研究工作。分析行星齿轮箱内齿圈齿根应变模型的构建方法,将内齿圈齿根应变模型分解为行星轮-内齿圈啮合力模型、内齿圈轮齿的齿形系数模型和齿间载荷分配系数模型;利用行星齿轮箱的纯扭转模型计算行星轮-内齿圈啮合力,利用材料力学理论推导内齿圈轮齿的齿形系数,并对行星轮-内齿圈啮合过程中的齿间载荷分配系数进行分析;研究行星齿轮箱典型故障对啮合刚度的影响,并根据内齿圈齿根应变模型计算得到典型故障下内齿圈齿根应变的变化规律。建模仿真计算分析结果表明,不同类型、不同部位、不同剧烈程度的故障会对行星齿轮箱内齿圈齿根应变信号造成不同影响,利用内齿圈齿根应变信号可有效识别行星齿轮箱的故障行为。
[Abstract]:The mechanical transmission system of planetary gear box with excellent properties is widely applied in many fields, but poor working conditions lead to the frequent faults, so the fault diagnosis method to carry out research work of planetary gear box is necessary. The traditional method of fault diagnosis based on vibration signal recognition in early weak planetary gear box The fault has limitations, so the fault diagnosis method based on planetary gear ring gear tooth strain signal is proposed, and the main development of planetary gear box typical faults of internal gear tooth strain mechanism research. Analysis of construction method of planetary gear tooth inner gear ring of strain mode, the ring gear tooth strain model Decomposition of planetary gear - ring gear meshing force model, tooth shape coefficient model and tooth ring gear tooth load distribution coefficient model; calculation of planetary wheel torsion model using planetary gear ring gear meshing force, tooth shape coefficient is derived by the theory of material mechanics in the gear tooth, and the the ring gear meshing planetary gear - tooth Analysis of load distribution coefficient; influence of typical fault study of planetary gear box of meshing stiffness, variation calculated under typical fault of ring gear and the ring gear tooth strain according to root strain model. Simulation calculation results show that, in different parts of different types, different extent, fault of planetary gear The different influences by the inner gear ring of dedendum strain signal, fault behavior using ring gear tooth strain signal can effectively identify the planetary gear box.
【作者单位】：西安交通大学机械工程学院;西安交通大学现代设计及转子轴承系统教育部重点实验室;
【基金】：国家自然科学基金(51675419)
【分类号】：TH132.41

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