摘要
基于虚拟样机技术实现分插机构的运动仿真分析及改进设计。使用Pro/E软件建立椭圆齿轮分插机构的三维实体模型,并导入到MSC. ADAMS软件中进行运动仿真分析。从仿真结果可以看到,在软件后处理中的秧爪尖点的速度曲线图有明显的几处波动,表明此处的速度大小有突变,不利于插秧位置的准确性以及分插机构运行的平稳性。经分析是由于补偿机构中的凸轮设计不合理所致,通过对补偿机构中的凸轮进行改进设计,然后重新在MSC. ADAMS中进行仿真分析,改进后的分插机构的秧爪尖点速度曲线图波动相比之前明显改善,提高了分插机构插秧的准确性及运行的平稳性,延长了齿轮的使用寿命。
The kinematics simulation analysis and improvement design of transplanting mechanism are conducted based on virtual prototyping technology. Through using Pro/E, the 3D model of the transplanting mechanism with elliptic gear is established, and then transferred into MSC. ADAMS software for kinematics simulation analysis. The simulation result shows that there are several obvious fluctuations in the speed curves of seedling claw point in the post - processing. This indicated that there is sudden change about the velocity, which could weaken the accuracy of the transplanting position and reduce the work stability of the transplanting mechanism. Through analysis, the cam design is not reasonable in the compensation mechanism. The cam of compensation mechanism is improved, and then the simulation analysis is reconducted. Through the improve- ment of transplanting mechanism, the fluctuations in the speed curves of seedling claw point are less than before, which could increase the accuracy of planting and the work stability of the transplanting mechanism, as well as prolong the service life of the gears.
作者
蒲明辉
张冬磊
卢煜海
卢聪
Pu Minghui Zhang Donglei Lu Yuhai Lu Cong(College of Mechanical Engineering, Guangxi University, Nanning 530004, Chin)
出处
《机械传动》
CSCD
北大核心
2017年第9期93-97,138,共6页
Journal of Mechanical Transmission
基金
广西制造系统与先进制造技术重点实验室项目(13-051-09S03)
