Rotary resistance device

摘要

A rotary resistance device providing resistance to rotary object includes a magnetic field generating assembly having a magnetizable main body, an even number of magnetizable extended bodies, magnetizable coils and separators, two first caps, and two shaft sections; a magnetizable outer cylinder enclosing the magnetic field generating assembly therein and rotatably connected to the shaft sections; and a magnetorheological fluid filled in a space formed between the magnetic field generating assembly and the magnetizable outer cylinder. The magnetizable extended bodies have the magnetizable coils wound thereon and are radially equally spaced on the magnetizable main body; the separators are respectively connected to between two adjacent magnetizable extended bodies; the first caps are closed onto two ends of the assembled magnetizable main body, magnetizable extended bodies and separators to seal the magnetizable coils in the magnetic field generating assembly; and the shaft sections are fixedly connected to the first caps.

主权项

1. A rotary resistance device, comprising:
a magnetic field generating assembly including a magnetizable main body, an even number of magnetizable extended bodies, an even number of magnetizable coils, an even number of separators, two pieces of first caps, and two shaft sections; the magnetizable extended bodies being radially spaced on an outer surface of the magnetizable main body at equal angular intervals; the magnetizable coils being respectively wound on one of the magnetizable extended bodies; the separators being respectively connected to between two adjacent ones of the magnetizable extended bodies; the first caps being closed onto two opposite ends of the magnetizable main body, magnetizable extended bodies and the separators to seal the magnetizable coils in the magnetic field generating assembly; and the shaft sections being separately connected to the first caps; a magnetizable outer cylinder enclosing the magnetic field generating assembly therein and being rotatably connected to the two shaft sections; and a magnetorheological fluid being filled in a space formed between the magnetic field generating assembly and the magnetizable outer cylinder.