Authors: WU, YI-CHANG; CHANG, CHUN-HSUAN; Yan-Wei Huang; Xie, Zong-Ying
Company/Institution: National Yunlin University of Science and Technology
Country: Taiwan
e-mail: eddie@wiipa.org.tw
web: https://www.wiipa.org.tw/
This study investigates the use of permanent magnetic gears to replace traditional mechanical gears in winches, featuring noise-free operation, non-contact transmission, a safety slip mechanism, and ease of maintenance. A non-coaxial magnetic gear configuration was chosen, with a ratchet and pawl mechanism added to achieve self-locking safety. The permanent magnetic gear winch was designed with three gear settings using Inventor for 3D modeling: the first gear provides a labor-saving effect, the second gear offers time-saving efficiency, and the third gear is suitable for quickly lifting light loads.Ansys Maxwell was used to analyze the speed and torque of the three gear settings, determining the optimal input speed range to prevent step-out phenomena. The results showed that the first gear can generate a maximum torque of 0.407 N·m, enabling the lifting of 1.728 kg with minimal effort. The second gear produces an output torque of 0.250 N·m, offering time-saving features with a slightly lower load capacity than the first. The third gear, which uses a direct drive, is suitable for light loads and has an output torque of 0.05 N·m. The overall design incorporates a magnetic slip mechanism to provide overload protection, ensuring operational safety.