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Published in 2020 at "Tribology International"
DOI: 10.1016/j.triboint.2020.106573
Abstract: Abstract Precision friction torques of double-nut 2-point contact ball screws for the material, geometry, assembly and operating conditions are modeled explicitly. The nonuniform contact load, spin friction, ball motion, contact angle variation by the gyroscopic…
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Keywords:
ball screws;
friction;
model;
friction torque ... See more keywords
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Published in 2017 at "Industrial Lubrication and Tribology"
DOI: 10.1108/ilt-12-2015-0204
Abstract: Purpose This paper aims to examine the precision loss of ball screw raceway under different operating conditions and geometry parameters. Design/methodology/approach Based on a new coefficient K’ introduced especially for ball screws to reflect the…
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Keywords:
ball screw;
precision loss;
ball;
precision ... See more keywords
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Published in 2021 at "Journal of Thermal Science and Engineering Applications"
DOI: 10.1115/1.4048756
Abstract: A new analytical method for the modeling of the thermal contact resistance of ball screws considering the load distribution of balls is proposed in this research. The load on balls is analyzed by the force…
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Keywords:
contact resistance;
ball screws;
thermal contact;
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Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture"
DOI: 10.1177/09544054221080035
Abstract: The preload of ball screws is generally used to confirm the ball screws with a high axial contact stiffness and a high positioning accuracy. Aiming at the preload degradation due to wear on the raceway…
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Keywords:
ball screws;
distribution;
model;
preload degradation ... See more keywords
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Published in 2022 at "Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture"
DOI: 10.1177/09544054221106897
Abstract: The operating condition of ball screws is generally applied to ensure the ball screws with a high transmission efficiency and a high positioning accuracy. Aiming at the optimal operating condition of double-nut ball screws, a…
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Keywords:
ball screws;
transmission efficiency;
efficiency;
model ... See more keywords
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Published in 2021 at "Proceedings of the Institution of Mechanical Engineers, Part O: Journal of Risk and Reliability"
DOI: 10.1177/1748006x21992886
Abstract: Ball screws, the most frequently used mechanical components to transform rotary motion into linear motion, can directly affect the precision and service life of engineering machines. Once the efficiency and accuracy of ball screws degrades,…
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Keywords:
early fault;
fault diagnosis;
ball screws;
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Published in 2019 at "Materials"
DOI: 10.3390/ma12193113
Abstract: In high-speed precision machining, thermal deformation caused by temperature rise affects the accuracy stability of the machine tool to a significant extent. In order to reduce the thermal deformation of ball screws and improve the…
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Keywords:
thermal deformation;
method;
deformation ball;
ball ... See more keywords