三激波滚柱活齿行星传动原理研究及仿真

发布时间：2019-01-07 07:20

【摘要】：三激波滚柱活齿行星传动是活齿行星传动的一种,它的结构简单,特别是其滚柱与传动圈的组合形式具有明显优点,改变了以往平行四边形输出机构形式,缩短了传动链,不用使用柔轮,避免了使用柔轮产生的一系列问题,而且还能够减少传递过程的能量损失,改善传动性能。在三激波滚柱活齿行星传动变速器中,激波轮质心几乎在旋转中心,自我平衡性能好,整个机构有6种不同的安装方式,滚柱数目具有2种选择形式,经过不同形式的组合,一共能获得12种不同的变速效果,既能够实现增速运动,也能够实现减速运动,且传动比范围大(0.01-100),运用范围广,在机械传动中有很重要的意义,对三激波滚柱活齿行星传动原理进行研究及仿真,对减小设计成本,提高设计质量、降低噪声、提高承载能力：与延长使用寿命具有重要作用。本文主要在以下几个方面进行了探索： (1)证明了三激波滚柱活齿不同条件下12种传动比；推导出了激波轮与内齿圈的理论齿廓方程与实际齿廓方程,并用Matlab进行了仿真；对传动进行了运动学分析,求出了滚柱质心位移、速度、加速度,及波幅A对它们的影响,并用Matlab进行了仿真。 (2)用PRO/E进行了三维建模与运动学仿真,发现运行良好无干涉,证明了前面推导的正确性。 (3)求出了内齿圈齿廓上的不同位置的曲率半径与压力角,并分析了有关参数对曲率半径与压力角的影响,分析了内齿圈齿廓失真的情形。 (4)结合Ansys13.0workbench与PRO/E,建立了三激波滚柱活齿行星传动有限元模型,并进行了模态分析,求得了三激波滚柱活齿行星传动的固有频率与振型。通过对云图和动画显示进行分析,滚柱与传动圈的刚度对模态影响较大,通过对云图和动画显示进行分析,能发现最大的接触变形出现在内齿圈啮合中段靠近齿顶处,设计时需注意其固有频率与振型,这对提高设计产品质量具有深远的意义。
[Abstract]:The three-shock roller movable tooth planetary transmission is one kind of movable tooth planetary transmission, its structure is simple, especially the combination form of roller and transmission ring has obvious advantages, which has changed the former parallelogram output mechanism form and shortened the transmission chain. Without the use of flexible wheel, a series of problems caused by the use of flexible wheel can be avoided, and the energy loss in transmission process can be reduced, and the transmission performance can be improved. In the three shock roller movable teeth planetary transmission, the center of mass of the exciting wave wheel is almost in the center of rotation, and the self-balancing performance is good. The whole mechanism has six different installation modes. A total of 12 different speed changes can be achieved, both in terms of acceleration and deceleration, with a wide range of transmission ratios (0.01-100), which is of great significance in mechanical transmission. The principle of three-shock roller movable tooth planetary transmission is studied and simulated, which plays an important role in reducing design cost, improving design quality, reducing noise, increasing bearing capacity and prolonging service life. This paper mainly explores the following aspects: (1) it is proved that there are 12 transmission ratios under different conditions of three shock roller movable teeth; The theoretical and practical tooth profile equations of shock wheel and inner gear ring are derived and simulated by Matlab. The kinematic analysis of the transmission is carried out, and the effects of the displacement, velocity, acceleration and amplitude A of the roller on them are obtained, and the simulation is carried out by Matlab. (2) 3D modeling and kinematics simulation with PRO/E are carried out, and it is found that the system works well without interference, which proves the correctness of the previous derivation. (3) the curvature radius and pressure angle of different positions on the inner gear profile are obtained, the influence of the parameters on the curvature radius and pressure angle is analyzed, and the distortion of the inner gear tooth profile is analyzed. (4) combined with Ansys13.0workbench and PRO/E, the finite element model of three shock wave roller movable tooth planetary transmission is established, and the modal analysis is carried out, and the natural frequency and mode shape of the three shock wave roller movable tooth planetary transmission are obtained. By analyzing the cloud picture and animation display, the stiffness of roller and transmission ring has a great influence on the modal. By analyzing the cloud picture and animation display, it can be found that the maximum contact deformation occurs in the middle section of the inner gear ring meshing near the top of the tooth. It is necessary to pay attention to its natural frequency and mode shape in design, which is of great significance to improve the quality of design products.
【学位授予单位】：湖南农业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TH132.425

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