| 摘要 |
<p>The present invention relates to a driving system for selecting a main driving device and an auxiliary driving device using an electromagnetic coupling device, which comprises: a rotary shaft driven by the auxiliary driving device; a rotary yoke attached on the rotary shaft and having an electromagnetic coil generating magnetic force when receiving power; a movable coupling installed as a rotary material relative to the rotary shaft, including a first engagement member on one surface, being coupled to the rotary yoke by moving toward the rotary yoke by the magnet force of the electromagnetic coil, and being separated from the rotary yoke by moving in the opposite direction to the rotary yoke when the magnetic force of the electromagnetic coil disappears; a fixed coupling including a second engagement member that is engaged with the first engagement member of the movable coupling; a pulley attached on the fixed coupling; and a driven device connected to the pulley to be driven, wherein the driven device is driven by the auxiliary driving device when the main driving device stops.</p> |
