| 摘要 |
A gear box includes a first permanent magnet direct current (PMDC) motor, a first output shaft driven by the first motor in one direction to dispense ice cubes and driven in an opposite direction to dispense crushed ice, a second PMDC motor and a second output shaft driven by the second motor in one direction to dispense shaved ice. The first and the second motors operate independently of each other. They are also aligned parallel to each other. The second motor operates at a different speed and torque than the first motor. Cross-sections of the first and second output shafts are hexagon-shaped. The longitudinal axis of the first output shaft is parallel to the longitudinal axis of the second output shaft. Thus, this compact miniature gear motor box has two output shafts capable of performing more that two functions.
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