| Issue |
MATEC Web Conf.
Volume 387, 2023
9th International BAPT Conference “Power Transmissions 2023”
|
|
|---|---|---|
| Article Number | 01001 | |
| Number of page(s) | 6 | |
| Section | Design, Analysis, Simulation, and Optimization | |
| DOI | https://doi.org/10.1051/matecconf/202338701001 | |
| Published online | 06 November 2023 | |
Theoretical analysis of transmission error in rack and pinion systems
1 Mondragon Unibertsitatea, Faculty of Engineering, Loramendi 4, 20500 Mondragon, Spain
2 UNED, Departamento de Mecánica, Juan del Rosal 12, 28040 Madrid, Spain
* Corresponding author: iulacia@mondragon.edu
Rack and pinion drive systems are widely used in machine tools with long travel distances because the stiffness is independent of the travelled distance, in contrast to other drive systems such as ballscrews. Although the inherent backlash problem of gear systems has been solved by means of utilizing two pinions independently preloaded, the time-varying mesh stiffness causes periodic position differences between the motor encoder and table position, which is known as transmission error, and may lead to vibrations and dynamic load. Few experimental works have analyzed such transmission error, but there are no theoretical approaches in the scientific literature. Therefore, this work aims to first extend previous analytical and approximate equations for mesh stiffness of gearing to rack and pinion systems and validate them with finite element methods. Finally, the effect of geometry variations, such as pressure angle and tooth thickness tolerance, on transmission error is discussed.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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