同平面多轴输出微小减速器

发布时间：2018-03-26 20:33

本文选题：空间曲线啮合轮　切入点：同平面多轴输出　出处：《华南理工大学》2012年硕士论文

【摘要】：微小机械系统中，传动机构通常以传递小功率为主，且体积小、质量轻。为了满足微小型或微型机电产品更加有效且经济地实现功能，微小型或微型传动机构及减速器成为了机械领域重要的研究对象。本课题组近年来一直在研究一种基于空间曲线啮合理论的新型传动机构，，即空间曲线啮合轮。该机构已具备了成熟完善的理论基础，其制造技术工艺也取得了一定的成效。本文在分析国内外微小减速器的优缺点及结合空间曲线啮合轮传动机构的特点的基础上，发明并设计了一种以空间曲线啮合轮为传动机构的同平面多轴输出微小减速器。首先，基于空间曲线啮合轮机构具有空间体积小、传动比大，能实现任意角度交叉轴之间的传动，创造性地提出并设计了同平面多轴输出微小减速器串联和并联传动的两种方案，即基于正多边形轴分布微小减速器和并行多轴输出微小减速器。其次，修正了重合度和曲线方程参变量的计算式，给出了求取中心距的关系式，标准化了适用于同平面多轴输出微小减速器的空间曲线啮合轮几何设计参数。在此基础上，给出了基体正多边形和啮合半径的定义和模型，建立了基于正多边形轴分布微小减速器的几何模型，推导出了求取该减速器几何尺寸和零部件装配尺寸的通用计算公式，并通过三维建模仿真验证了公式的合理性和可靠性。并行多轴输出微小减速器为一级减速器，根据空间曲线啮合轮传动机构的设计参数即可得到。最后，在给定的功率和转速条件下，详细系统地设计了一套基于正三边形轴分布微小减速器，包括减速器运动和动力参数的计算，传动机构、轴和箱体的结构设计。该微小减速器装配正确，没有干涉，且在三维仿真中能实现连续正确的啮合传动。
[Abstract]:In the micro mechanical system, the transmission mechanism is usually small power transmission, small volume, light mass. In order to meet the micro or micro electromechanical products more effective and economical to achieve functions, Micro or micro transmission mechanism and reducer have become an important research object in the field of machinery. In recent years, our group has been studying a new type of transmission mechanism based on the theory of space curve meshing, that is, space curve meshing wheel. Based on the analysis of the advantages and disadvantages of the micro reducer at home and abroad and the characteristics of the space curve meshing wheel transmission mechanism, This paper presents and designs a kind of coplanar multi-axis output micro reducer with space curve meshing wheel as transmission mechanism. First of all, based on the space curve meshing wheel mechanism, the space volume is small, the transmission ratio is large, and the transmission between any angle cross shaft can be realized. Two schemes of series and parallel transmission of the same plane multi-axis output micro reducer are proposed and designed creatively, that is, the small reducer based on the regular polygonal axis distribution and the parallel multi-axis output micro reducer. Secondly, the calculation formula of coincidence degree and parameter variable of curve equation is modified, the relation formula of calculating center distance is given, and the geometric design parameters of space curve meshing wheel suitable for the same plane multi-axis output micro reducer are standardized. The definition and model of matrix regular polygon and meshing radius are given, the geometric model of micro reducer based on regular polygon axis distribution is established, and the general calculation formula for calculating the geometric dimension and assembly size of the reducer is derived. The rationality and reliability of the formula are verified by three-dimensional modeling and simulation. The parallel multi-axis output micro reducer is a first-grade reducer, which can be obtained according to the design parameters of the space curve meshing wheel transmission mechanism. Finally, under the given power and rotational speed conditions, a set of micro reducers based on the regular triangular shaft distribution is designed in detail, including the calculation of the reducer's motion and dynamic parameters, and the transmission mechanism. Structural design of shaft and box. The micro reducer is assembled correctly, without interference, and can realize continuous and correct meshing transmission in 3D simulation.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.46

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