| 摘要 |
PURPOSE:To utilize the torque of a stepping motor to the maximum limit by varying the accelerating/decelerating rate and maximum pulse rate of the motor according to the magnitude of a load torque by elastic means. CONSTITUTION:A lever 2 is connected at its one end to the rotary shaft of a stepping motor 1, and at the other end to a link rod 3, so that the rod 3 is moved in a direction (a)-(b) by the rotation of the motor 1. If a load torque by a return spring 6 is small, the motor 1 is rotatably driven by a large accelerating/decelerating rate and a high maximum pulse rate, so as to be rotatably driven at a smaller accelerating/decelerating rate and a lower maximum pulse rate as the load torque by the spring 6 is increased. |
