Author:
Yang Linhui,Fu Jie,Pei Xiaqing,Zhang Zixuan,Fan Yuanxun
Abstract
Abstract
Aerospace ball screws cannot be lubricated for maintenance and replacement, so they use grease that can run for a long time and keep the performance. Under high speed and high load conditions, the ball screw will be warmed up rapidly, and the temperature has a great effect on the capability of the grease. In this paper, we deduce the formula for calculating the screw temperature, establish a thermodynamic simulation of the ball screw model to get its temperature under different conditions, and set up a test bench to try out the screw temperature rise to investigate thermal properties in the grease lubrication conditions.
Reference10 articles.
1. Research on long-term storage lubrication of ball screw sub[J];Liu;Missile and Space Launch Technology,2016
2. Temperature fields in machining processes and heat transfer models[J];Palazzo;Mathematical and Computer Modelling,2002
3. Thermal characteristic analysis of ball screw feed drive system in lathes based on moving thermal network [J];Li;The International Journal of Advance Manufacturing Technology,2020
4. Prediction method of thermal errors of the screw system in lathes based on moving thermal network [J];Li;Precision Engineering,2019
5. Numerical Investigation of Turbopump Bearing Heat Generation in Liquid Methane [J];Kakudo;ASME. J. Tribol. August,2023