| 摘要 |
<p>The present invention comprises: a first motor in which a rotary shaft is coupled with an object to be driven and rotational force is applied to the rotary shaft toward either one of the positive or reverse directions; and a second motor in which a rotary shaft is coupled with a stator of the first motor and the stator of the first motor is rotated toward the other one of either of the positive or reverse directions. The first and second motors are coupled with each other in series so as to have central lines of the rotary shafts thereof on a coaxial line by fixing the stator of the first motor to the rotary shaft of the second motor, and a stopper for fixing each rotary shaft of the first and second motors in the stopped state of the corresponding motor is provided at each of the corresponding motors, thereby, the speed and torque of the object to be driven can be changed in the excluded state of a transmission and a speed reducer. In addition, the location of the object to be driven can be determined at a desired location and a desired point in time by suppressing inertial force to be applied to the rotary shafts of the motors when the rotary shafts of the motors are stopped.</p> |
