零齿差机构可靠性设计及强度有限元分析
发布时间：2018-01-05 02:02
本文关键词：零齿差机构可靠性设计及强度有限元分析 出处：《沈阳工业大学》2011年硕士论文 论文类型：学位论文
【摘要】：在油田原油开采过程中,广泛地应用了潜油螺杆泵采油技术,这项技术已逐渐成为原油开采领域的研究焦点,大量的研究人员对其进行了研究和改进。 潜油螺杆泵系统包括：螺杆泵、联轴体、减速器、潜油电机、变频器以及保护器等六大部分。其中潜油螺杆泵采油系统使用寿命很大程度上取决于联轴体中的零齿差机构。零齿差传动机构有以下优点：传动平稳、精度高、零件少、结构简单等优点。两齿轮轴线平行但不同心,有较大齿侧间隙,实现了只改变运动形式而不改变传动速度的传动。 本文用潜油螺杆泵偏心联轴装置中的零齿差机构来实现输出轴相对于输入轴的行星偏转运动的传递。 本文首先研究了零齿差机构啮合过程理论,了解啮合的起始和终止点,并且推导出相应的坐标计算式；说明了传统的齿轮强度校核公式不能够对零齿差内啮合齿轮副进行校核,指出了相应的适用于零齿差机构的校核方程式表达式。依据所给的强度公式,按照可靠性设计理论,对零齿差内啮合齿轮机构进行了可靠性设计。 其次说明了在潜油螺杆泵采油系统中零齿差机构的重要作用,介绍了有限元软件的相关知识。在上述理论的基础上,采用ANSYS有限元分析软件,在120℃的温度场中,对零齿差机构进行结构分析、力学分析以及静力学的接触有限元分析计算,得出其应力应变分布情况和结构的变形量。 通过本文的研究分析,为潜油螺杆泵采油系统中零齿差机构的设计和改进提供了理论基础,也丰富了相关的数据资料。
[Abstract]:In the process of crude oil production, submersible screw pump technology has been widely used, which has gradually become the focus of research in the field of crude oil production, and has been studied and improved by a large number of researchers. Submersible screw pump system includes: screw pump, coupling, reducer, submersible motor. Frequency converter and protector are six parts. The service life of submersible screw pump oil recovery system depends on the zero tooth difference mechanism in the coupling to a great extent. The zero tooth difference transmission mechanism has the following advantages: stable transmission and high accuracy. The two gear axes are parallel but not concentric, with large tooth side clearance, so the transmission can only change the form of motion without changing the speed of transmission. In this paper, the zero tooth difference mechanism in the eccentric coupling of submersible screw pump is used to transfer the planetary deflection of the output shaft relative to the input shaft. In this paper, the theory of meshing process of zero-tooth difference mechanism is studied, the starting and ending points of meshing are obtained, and the corresponding coordinate calculation formula is derived. This paper shows that the traditional formula of gear strength checking can not check the internal meshing gear pair with zero tooth difference, and points out the corresponding formula of checking equation suitable for zero tooth difference mechanism, according to the strength formula given. According to the theory of reliability design, the reliability design of zero tooth difference internal meshing gear mechanism is carried out. Secondly, the important role of zero tooth difference mechanism in the oil recovery system of submersible screw pump is explained, and the relevant knowledge of finite element software is introduced. On the basis of the above theory, ANSYS finite element analysis software is adopted. In the temperature field of 120 鈩，
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