TY - GEN
T1 - Mechanical Design of a Novel Planetary Gear-Roller Screw Hybrid Transmission Mechanism
AU - Liu, Yishou
AU - Fu, Xiaojun
AU - Ma, Shangjun
AU - Li, Xin
AU - Chen, Jinran
AU - Wang, Peiyi
N1 - Publisher Copyright:
© The Chinese Mechanical Engineering Society 2027.
PY - 2027
Y1 - 2027
N2 - This paper presents a novel planetary gear-roller screw hybrid transmission mechanism that achieves ultra-small output lead transmission under conventional screw pitch design by integrating planetary gear transmission with roller screw transmission. The core innovation of this mechanism lies in the coupling design of the planetary gear system and the roller screw transmission, which ensures that the ratio of the roller’s rotation speed to its revolution speed, as well as the ratio of the roller’s revolution speed to the nut’s rotation speed, remain constant. Through this design, the mechanism can output a constant lead that is significantly smaller than the screw thread lead, and the output lead is unaffected by external factors such as nut load and screw speed, as well as internal factors such as preload and lubrication friction. The mechanism maintains a pure rolling state at all times, significantly improving transmission efficiency and precision. This paper provides a detailed description of the mechanism’s structural design, working principle, kinematic analysis, and the influence of structural parameters on the output lead of the mechanism. The mechanism is suitable for high-power-density, high-precision, compact, and high-load electromechanical actuators, such as robotic joint drives and aerospace equipment, and has broad application potential.
AB - This paper presents a novel planetary gear-roller screw hybrid transmission mechanism that achieves ultra-small output lead transmission under conventional screw pitch design by integrating planetary gear transmission with roller screw transmission. The core innovation of this mechanism lies in the coupling design of the planetary gear system and the roller screw transmission, which ensures that the ratio of the roller’s rotation speed to its revolution speed, as well as the ratio of the roller’s revolution speed to the nut’s rotation speed, remain constant. Through this design, the mechanism can output a constant lead that is significantly smaller than the screw thread lead, and the output lead is unaffected by external factors such as nut load and screw speed, as well as internal factors such as preload and lubrication friction. The mechanism maintains a pure rolling state at all times, significantly improving transmission efficiency and precision. This paper provides a detailed description of the mechanism’s structural design, working principle, kinematic analysis, and the influence of structural parameters on the output lead of the mechanism. The mechanism is suitable for high-power-density, high-precision, compact, and high-load electromechanical actuators, such as robotic joint drives and aerospace equipment, and has broad application potential.
KW - Kinematic analysis
KW - Planetary Gear System
KW - Roller Screw Mechanism
KW - Structural Design
UR - https://www.scopus.com/pages/publications/105043762403
U2 - 10.1007/978-981-95-7904-4_64
DO - 10.1007/978-981-95-7904-4_64
M3 - 会议稿件
AN - SCOPUS:105043762403
SN - 9789819579037
T3 - Mechanisms and Machine Science
SP - 902
EP - 914
BT - Advances in Mechanical Design - Proceedings of The 2025 International Conference on Mechanical Design ICMD 2025
A2 - Tan, Jianrong
A2 - Liu, Zhenyu
A2 - Hu, Weifei
PB - Springer Science and Business Media B.V.
T2 - International Conference on Mechanical Design, ICMD 2025
Y2 - 9 May 2025 through 11 May 2025
ER -