An accuracy degradation analysis of ball screw mechanism considering time-varying motion and loading working conditions

被引：123
作者：
Cheng, Qiang [1 ,2 ]
Qi, Baobao [1 ,2 ]
Liu, Zhifeng [1 ,2 ]
Zhang, Caixia [1 ,2 ]
Xue, Deyi [3 ]
机构：
[1] Beijing Univ Technol, Inst Adv Mfg & Intelligent Technol, Beijing 100124, Peoples R China
[2] Beijing Univ Technol, Beijing Key Lab Adv Mfg Technol, Beijing 100124, Peoples R China
[3] Univ Calgary, Dept Mech & Mfg Engn, Calgary, AB T2N 1N4, Canada
来源：
MECHANISM AND MACHINE THEORY | 2019年 / 134卷
基金：
中国国家自然科学基金;
关键词：
Ball screw mechanism; Contact load; Rotational speed; Wear model; Accuracy degradation analysis; CONTACT; PREDICTION; KINEMATICS; FRICTION; DESIGN; TORQUE;
D O I：
10.1016/j.mechmachtheory.2018.12.024
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
Ball screw mechanism (BSM) plays a key role to transmit motion and power in a machine tool. The accuracy of the machine tool is greatly influenced by the accuracy of the BSM. Since accuracy degradation of BSM is primarily due to wear, the wear behavior of BSM is studied considering the time-varying motion and loading working conditions. A new wear prediction model of BSM is introduced in this research considering complex working conditions. Because BSM is subject to dynamic fluctuations of rotational speed and loading in the operation process, a loading model is established to describe the dynamic contact force between the ball and the raceway, and a motion model is developed to describe the dynamic sliding and rolling behaviors between the ball and the raceway. The degradation of BSM accuracy is analyzed considering time-varying motion and loading working conditions. Experiments have also been designed and conducted to demonstrate the effectiveness of the accuracy degradation analysis for BSM. Crown Copyright (C) 2018 Published by Elsevier Ltd. All rights reserved.
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页码：1 / 23
页数：23
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