Explicit precision friction torque model of ball screws in high speed operations
Sign Up to like & getrecommendations! 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… read more here.
Keywords: ball screws; friction; model; friction torque ... See more keywords
Investigation of the precision loss for ball screw raceway based on the modified Archard theory
Sign Up to like & getrecommendations! 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… read more here.
Keywords: ball screw; precision loss; ball; precision ... See more keywords
Modeling of Thermal Contact Resistance of Ball Screws Considering the Load Distribution of Balls
Sign Up to like & getrecommendations! 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… read more here.
Keywords: contact resistance; ball screws; thermal contact;
Preload degradation mechanism of double-nut ball screws revealed by an innovative wear distribution model
Sign Up to like & getrecommendations! 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… read more here.
Keywords: ball screws; distribution; model; preload degradation ... See more keywords
Optimal operating condition of precision ball screws based on a transmission efficiency model
Sign Up to like & getrecommendations! 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… read more here.
Keywords: ball screws; transmission efficiency; efficiency; model ... See more keywords
Early fault diagnosis of ball screws based on 1-D convolution neural network and orthogonal design
Sign Up to like & getrecommendations! 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,… read more here.
Keywords: early fault; fault diagnosis; ball screws;
Adaptive Method to Reduce Thermal Deformation of Ball Screws Based on Carbon Fiber Reinforced Plastics
Sign Up to like & getrecommendations! 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… read more here.
Keywords: thermal deformation; method; deformation ball; ball ... See more keywords