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轮毂打磨5-DOF机械臂动力学建模与驱动参数预估
引用本文:荣誉,刘双勇,王洪斌,韩勇.轮毂打磨5-DOF机械臂动力学建模与驱动参数预估[J].中国机械工程,2018,29(4):449.
作者姓名:荣誉  刘双勇  王洪斌  韩勇
作者单位:1.燕山大学电气工程学院, 秦皇岛,066004 2.河北科技师范学院 机电工程学院,秦皇岛,066004 3.中信戴卡股份有限公司, 秦皇岛,066004
基金项目:国家科技支撑计划资助项目(2015BAI06B01); 河北省高等学校科学技术研究青年基金资助项目(QN2015185); 秦皇岛市科技计划资助项目(201703A003); 河北科技师范学院博士启动基金资助项目(2015YB004) National Key Technology R&D Program (No. 2015BAI06B01)
摘    要:提出了一种基于2-UPS+UPU机构的5-DOF机械臂,建立了机械臂的手腕运动状态与其关节驱动参数之间的传递方程显式表达式,从而得到机械臂的伺服电机驱动参数峰值预估模型,计算出各伺服电机中的驱动转速最大理论值为25.1r/s,驱动力矩最大理论值为6.2N*m。以一组具体的结构参数作为算例,计算出伺服电机中的驱动转速最大值为18.7r/s,驱动力矩最大值为4.73N*m,算例伺服电机选型的预估功率为700W,证明了伺服电机峰值驱动参数预估模型的合理性。

关 键 词:机械臂  轮毂打磨  并联机构  动力学分析  Lagrange方程  峰值预估模型  

Dynamics Modeling and Drive Parameter Prediction of a 5-DOF Wheel Grinding Manipulator Arm
RONG Yu,LIU Shuangyong,WANG Hongbin,HAN Yong.Dynamics Modeling and Drive Parameter Prediction of a 5-DOF Wheel Grinding Manipulator Arm[J].China Mechanical Engineering,2018,29(4):449.
Authors:RONG Yu  LIU Shuangyong  WANG Hongbin  HAN Yong
Affiliation:1.Institute of Electrical Engineering,Yanshan University,Qinhuangdao,Hebei,066004 2.College of Mechanical and Electrical Engineering,Hebei Normal University of Science and Technology,Qinhuangdao,Hebei,066004 3.CiTiC Dicastal Wheel Manufacturing Co., Ltd.,Qinhuangdao,Hebei,066004
Abstract:A new type of 5-DOF manipulator arm was proposed based on the 2-UPS+UPU mechanisms. The explicit expression between the wrist movement states and the joint driving parameters was given, and the peak prediction model of servo motors for driving speeds and torques was obtained. Calculations show that the peak value of the driving motors' speeds is as 25.1r/s, and the peak value of the driving motors' torques is as 6.2N*m. Using a design scheme of the manipulator arm and its structure parameters as an example, and the calculation results show that the example's driving motor peak speed is as 18.7r/s, and the example's driving motor peak torque is as 4.73N*m. The predicted peak power of the example's servo motors is as 700W. The driving parameters' peak prediction model of the manipulator arm is more reasonable.
Keywords:manipulator arm  wheel grinding  parallel mechanism  dynamics analysis  Lagrange equation  peak prediction model  
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