三叉杆等角速万向联轴器的运动学研究
发布时间：2018-10-19 20:12
【摘要】：本文首先分析了不同结构类型的等角速万向联轴器,比较各自的特点;研究了三叉杆等角速万向联轴器的结构特征。在单联滑块型三叉杆万向联轴器的运动学分析中,给出其运动学方程组,然后采用Matlab软件进行数值求解,考察联轴器夹角、输入轴的半径和输出轴的长度对其运动学的影响,并绘制它的多个特征项目的曲线。通过分析得知:(1)三叉杆万向联轴器是一种等角速联轴器;(2)输入轴的半径越小、输出轴的长度越长和两轴夹角越小,联轴器的同步性就越好,运动越平稳。 其次,在双联滑块型三叉杆等角速万向联轴器的运动学分析中,分析了改进前与改进后的双联三叉杆等角速万向联轴器的结构特点,求解了两种双联三叉杆等角速万向联轴器的自由度。重点研究改进后的双联滑块型三叉杆等角速万向联轴器的运动学;以方向余弦矩阵为数学工具,通过严谨的数学推导,得出输出轴采用自调心轴承安装时,双联滑块型三叉杆等角速万向联轴器的输入轴与中间轴、中间轴与输出轴以及输入轴与输出轴的运动学方程表达式。结果表明双联滑块型三叉杆万向联轴器也是一种等角速联轴器。 最后,使用三维实体建模软件Pro/E建立双联三叉杆等角速万向联轴器零件参数化模型,将此模型导入Pro/E运动学模块进行仿真,对改进前与改进后的双联三叉杆等角速万向联轴器进行运动学仿真以及对有间隙时的双联三叉杆联轴器进行运动仿真;并比较了改进前与改进后、有间隙和无间隙时的运动学特性,得到了改进后的无间隙双联滑块型三叉杆万向联轴器的输出轴与三叉杆的运动更为稳定的结果,进一步验证了双联三叉杆的等角速特性。 通过上述分析,在单联三叉杆联轴器理论的基础上寻找到了研究双联三叉杆联轴器新的理论方法,为双联三叉杆等角速万向联轴器的研究领域提供了良好的理论和实践指导意义,从而为进一步研究开发三叉杆等角速万向联轴器打下基础。
[Abstract]:In this paper, different types of constant velocity universal couplings are analyzed and their characteristics are compared, and the structural characteristics of tripod constant speed universal couplings are studied. In the kinematics analysis of the single sliding bar universal coupling, the kinematics equations are given, and then solved numerically by Matlab software. The effects of the angle of the coupling, the radius of the input shaft and the length of the output shaft on the kinematics are investigated. And draws the curve of its many characteristic items. The results show that: (1) the tripod universal coupling is a constant angular speed coupling; (2) the smaller the radius of the input shaft, the longer the length of the output shaft and the smaller the angle between the two axes, the better the synchronicity of the coupling is and the more stable the movement is. Secondly, in the kinematics analysis of the double slider type tripod constant angular universal coupling, the structural characteristics of the modified and improved double tripod equal angular universal coupling are analyzed. The degrees of freedom of two kinds of double tripod constant velocity universal couplings are solved. The kinematics of the improved double slider tripod constant angular universal coupling is studied emphatically, and with the direction cosine matrix as the mathematical tool, through rigorous mathematical derivation, it is concluded that when the output shaft is installed with self-centering bearing, The kinematics equation expressions of input shaft and intermediate shaft, intermediate shaft and output shaft, input axis and output axis of the double slider type triple-bar constant angular universal coupling. The results show that the double sliding block universal coupling is also an equal angular speed coupling. Finally, the parametric model of the parts of the universal coupling is established by using the 3D solid modeling software Pro/E, and the model is imported into the Pro/E kinematics module for simulation. The kinematics simulation and kinematics simulation of the double joint trunked universal coupling before and after the improvement are carried out, and the kinematic simulation of the double tripod coupling with clearance is carried out, and the comparison between the improved and the improved universal coupling is given. The kinematics characteristics of the universal coupling with and without clearance are obtained, and the result that the output shaft of the improved universal coupling is more stable than that of the trinity bar is obtained, which further verifies the isometric velocity characteristics of the double tripod. Based on the above analysis, a new theoretical method for the study of double trinity rod coupling is found on the basis of the theory of single-link truss coupling. It provides a good theoretical and practical guidance for the research field of double tripod constant speed universal coupling, thus laying a foundation for further research and development of tripod constant angular universal coupling.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH133.4
本文编号：2282237
[Abstract]:In this paper, different types of constant velocity universal couplings are analyzed and their characteristics are compared, and the structural characteristics of tripod constant speed universal couplings are studied. In the kinematics analysis of the single sliding bar universal coupling, the kinematics equations are given, and then solved numerically by Matlab software. The effects of the angle of the coupling, the radius of the input shaft and the length of the output shaft on the kinematics are investigated. And draws the curve of its many characteristic items. The results show that: (1) the tripod universal coupling is a constant angular speed coupling; (2) the smaller the radius of the input shaft, the longer the length of the output shaft and the smaller the angle between the two axes, the better the synchronicity of the coupling is and the more stable the movement is. Secondly, in the kinematics analysis of the double slider type tripod constant angular universal coupling, the structural characteristics of the modified and improved double tripod equal angular universal coupling are analyzed. The degrees of freedom of two kinds of double tripod constant velocity universal couplings are solved. The kinematics of the improved double slider tripod constant angular universal coupling is studied emphatically, and with the direction cosine matrix as the mathematical tool, through rigorous mathematical derivation, it is concluded that when the output shaft is installed with self-centering bearing, The kinematics equation expressions of input shaft and intermediate shaft, intermediate shaft and output shaft, input axis and output axis of the double slider type triple-bar constant angular universal coupling. The results show that the double sliding block universal coupling is also an equal angular speed coupling. Finally, the parametric model of the parts of the universal coupling is established by using the 3D solid modeling software Pro/E, and the model is imported into the Pro/E kinematics module for simulation. The kinematics simulation and kinematics simulation of the double joint trunked universal coupling before and after the improvement are carried out, and the kinematic simulation of the double tripod coupling with clearance is carried out, and the comparison between the improved and the improved universal coupling is given. The kinematics characteristics of the universal coupling with and without clearance are obtained, and the result that the output shaft of the improved universal coupling is more stable than that of the trinity bar is obtained, which further verifies the isometric velocity characteristics of the double tripod. Based on the above analysis, a new theoretical method for the study of double trinity rod coupling is found on the basis of the theory of single-link truss coupling. It provides a good theoretical and practical guidance for the research field of double tripod constant speed universal coupling, thus laying a foundation for further research and development of tripod constant angular universal coupling.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2011
【分类号】：TH133.4
【引证文献】
相关硕士学位论文 前1条
1 张礼增;三叉杆滑块式万向联轴器虚拟设计平台的开发研究[D];青岛科技大学;2012年
，本文编号：2282237
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