新型侧隙可调式滤波传动装置设计及啮合特性研究

发布时间：2018-06-17 14:39

本文选题：变厚齿轮 + 少齿差传动　；参考：《重庆大学》2012年硕士论文

【摘要】：随着航空、航天、机器人、自动化、船舶、车辆、武器装备等工程领域事业的迅速发展，对其传动件及系统的运动精度、回程误差的要求愈加严格。而现有的各种减速器已不能满足重要装备的发展要求。鉴于此，重庆大学机械传动国家重点实验室王家序教授等发明了一种滤波减速器（专利号：ZL201010104359.5），具有高刚度、小体积、轻量化、加工方便等优点，并能通过轴向移动方便地实现侧隙的调整，特别适用于某些对回差要求严格的精密传动中，具有广阔的应用前景。本文针对该新型变厚齿轮少齿差行星减速器开展设计研究，旨在提高该减速器的回差精度，改善其传动性能。本文研究的主要内容可以概况如下： ①在明确传动装置技术要求特别是接口尺寸要求下，进行传动装置的结构设计：包括对各齿数进行合理分配，并计算其几何尺寸；校验其重合度、大端齿顶厚、齿廓重迭干涉以及实际顶隙。 ②基于三维设计软件SolidWorks，研究变厚齿轮齿廓曲面的生成方法，建立传动装置各零部件实体模型并进行虚拟装配与干涉分析。将装配模型数据导入到ADAMS环境中，通过定义各种转动副、约束副和接触副，建立起传动装置的虚拟样机模型，通过使用STEP函数对虚拟样机定义运动和施加载荷并进行运动仿真，得出输出齿轮的转速随时间的变化曲线图，求出虚拟样机的传动比，并与理论值进行比较；得出啮合力的时域曲线图和频域曲线图，并对啮合频率进行分析。 ③在总结齿轮传动回差基本理论的基础上，根据变厚齿轮的特点推导变厚齿轮啮合侧隙变化量与轴向调隙量之间的关系式。进而基于概率统计的方法对内啮合变厚齿轮副各回差来源进行定量分析，建立内啮合变厚齿轮副回差计算模型。在此基础上，建立该新型侧隙可调式滤波传动装置的回差计算模型。 ④基于变厚齿轮副内、外齿轮的齿廓曲面方程和齿轮啮合理论，推导内啮合变厚齿轮副的啮合模型，并在此基础上，，推导出考虑轮齿弯曲变形影响的齿面接触应力分布模型，并推广到多齿接触的情况，与有限元分析结果进行了比较。根据计算结果对轮齿进行了齿端修形研究。
[Abstract]:With the rapid development of aeronautics, spaceflight, robot, automation, ship, vehicle, weapon equipment and other engineering fields, the requirements for the motion accuracy and return range error of its transmission parts and systems become more and more strict. However, the existing reducers can not meet the requirements of the development of important equipment. In view of this, Professor Wang Jiapu and others in the State key Laboratory of Mechanical Transmission of Chongqing University have invented a filter reducer (Patent No.: ZL201010104359.5), which has the advantages of high stiffness, small volume, lightweight, convenient processing, etc. It can adjust the clearance conveniently by axial movement, especially in some precision transmission with strict return difference, and has a broad application prospect. In this paper, the design and research of the new type planetary reducer with less tooth difference are carried out in order to improve the accuracy of the reducer and improve its transmission performance. The main contents of this paper can be summarized as follows: 1 under the condition of defining the technical requirements of the transmission device, especially the requirements of the interface size, the structural design of the transmission device is carried out: including the reasonable distribution of the number of teeth, And calculate its geometry size, check its coincidence degree, large end tooth top thickness, tooth profile overlap interference and actual top gap. 2 based on 3D design software SolidWorks, the method of generating tooth profile surface of thickened gear is studied. The solid model of each part of the transmission device is established and virtual assembly and interference analysis are carried out. The assembly model data is imported into Adams environment. By defining various rotating pairs, constraint pairs and contact pairs, the virtual prototype model of the transmission device is established. By using step function, the motion and load of the virtual prototype are defined, and the motion simulation is carried out. The speed curve of the output gear with time is obtained, the transmission ratio of the virtual prototype is calculated, and compared with the theoretical value, the time domain curve and frequency domain curve of the meshing force are obtained. On the basis of summarizing the basic theory of gear transmission return difference, the relationship between the change of meshing clearance and axial clearance of thickened gear is deduced according to the characteristics of thickened gear. Then based on the method of probability and statistics, the source of return difference of internal meshing and thickening gear pair is quantitatively analyzed, and the calculation model of return difference of internal meshing and thickening gear pair is established. On the basis of this, the calculation model of the return difference of the new type of backlash adjustable filter transmission is established. 4 based on the tooth profile surface equation of the inner and outer gears and the meshing theory of the gears, The meshing model of internal meshing and thickening gear pair is derived. On this basis, the tooth surface contact stress distribution model considering the influence of gear tooth bending deformation is derived, which is extended to the case of multi-tooth contact, and the results are compared with the finite element analysis results. According to the calculation results, the tooth end modification is studied.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TH132.41

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